/* vi:set ts=8 sts=4 sw=4:
*
* VIM - Vi IMproved by Bram Moolenaar
*
* Do ":help uganda" in Vim to read copying and usage conditions.
* Do ":help credits" in Vim to see a list of people who contributed.
* See README.txt for an overview of the Vim source code.
*/
/*
* misc1.c: functions that didn't seem to fit elsewhere
*/
#include "vim.h"
#include "version.h"
#ifdef HAVE_FCNTL_H
# include <fcntl.h> /* for chdir() */
#endif
static char_u *vim_version_dir __ARGS((char_u *vimdir));
static char_u *remove_tail __ARGS((char_u *p, char_u *pend, char_u *name));
static int copy_indent __ARGS((int size, char_u *src));
/*
* Count the size (in window cells) of the indent in the current line.
*/
int
get_indent()
{
return get_indent_str(ml_get_curline(), (int)curbuf->b_p_ts);
}
/*
* Count the size (in window cells) of the indent in line "lnum".
*/
int
get_indent_lnum(lnum)
linenr_T lnum;
{
return get_indent_str(ml_get(lnum), (int)curbuf->b_p_ts);
}
#if defined(FEAT_FOLDING) || defined(PROTO)
/*
* Count the size (in window cells) of the indent in line "lnum" of buffer
* "buf".
*/
int
get_indent_buf(buf, lnum)
buf_T *buf;
linenr_T lnum;
{
return get_indent_str(ml_get_buf(buf, lnum, FALSE), (int)buf->b_p_ts);
}
#endif
/*
* count the size (in window cells) of the indent in line "ptr", with
* 'tabstop' at "ts"
*/
int
get_indent_str(ptr, ts)
char_u *ptr;
int ts;
{
int count = 0;
for ( ; *ptr; ++ptr)
{
if (*ptr == TAB) /* count a tab for what it is worth */
count += ts - (count % ts);
else if (*ptr == ' ')
++count; /* count a space for one */
else
break;
}
return count;
}
/*
* Set the indent of the current line.
* Leaves the cursor on the first non-blank in the line.
* Caller must take care of undo.
* "flags":
* SIN_CHANGED: call changed_bytes() if the line was changed.
* SIN_INSERT: insert the indent in front of the line.
* SIN_UNDO: save line for undo before changing it.
* Returns TRUE if the line was changed.
*/
int
set_indent(size, flags)
int size;
int flags;
{
char_u *p;
char_u *newline;
char_u *oldline;
char_u *s;
int todo;
int ind_len;
int line_len;
int doit = FALSE;
int ind_done;
int tab_pad;
int retval = FALSE;
/*
* First check if there is anything to do and compute the number of
* characters needed for the indent.
*/
todo = size;
ind_len = 0;
p = oldline = ml_get_curline();
/* Calculate the buffer size for the new indent, and check to see if it
* isn't already set */
/* if 'expandtab' isn't set: use TABs */
if (!curbuf->b_p_et)
{
/* If 'preserveindent' is set then reuse as much as possible of
* the existing indent structure for the new indent */
if (!(flags & SIN_INSERT) && curbuf->b_p_pi)
{
ind_done = 0;
/* count as many characters as we can use */
while (todo > 0 && vim_iswhite(*p))
{
if (*p == TAB)
{
tab_pad = (int)curbuf->b_p_ts
- (ind_done % (int)curbuf->b_p_ts);
/* stop if this tab will overshoot the target */
if (todo < tab_pad)
break;
todo -= tab_pad;
++ind_len;
ind_done += tab_pad;
}
else
{
--todo;
++ind_len;
++ind_done;
}
++p;
}
/* Fill to next tabstop with a tab, if possible */
tab_pad = (int)curbuf->b_p_ts - (ind_done % (int)curbuf->b_p_ts);
if (todo >= tab_pad)
{
doit = TRUE;
todo -= tab_pad;
++ind_len;
/* ind_done += tab_pad; */
}
}
/* count tabs required for indent */
while (todo >= (int)curbuf->b_p_ts)
{
if (*p != TAB)
doit = TRUE;
else
++p;
todo -= (int)curbuf->b_p_ts;
++ind_len;
/* ind_done += (int)curbuf->b_p_ts; */
}
}
/* count spaces required for indent */
while (todo > 0)
{
if (*p != ' ')
doit = TRUE;
else
++p;
--todo;
++ind_len;
/* ++ind_done; */
}
/* Return if the indent is OK already. */
if (!doit && !vim_iswhite(*p) && !(flags & SIN_INSERT))
return FALSE;
/* Allocate memory for the new line. */
if (flags & SIN_INSERT)
p = oldline;
else
p = skipwhite(p);
line_len = (int)STRLEN(p) + 1;
newline = alloc(ind_len + line_len);
if (newline == NULL)
return FALSE;
/* Put the characters in the new line. */
s = newline;
todo = size;
/* if 'expandtab' isn't set: use TABs */
if (!curbuf->b_p_et)
{
/* If 'preserveindent' is set then reuse as much as possible of
* the existing indent structure for the new indent */
if (!(flags & SIN_INSERT) && curbuf->b_p_pi)
{
p = oldline;
ind_done = 0;
while (todo > 0 && vim_iswhite(*p))
{
if (*p == TAB)
{
tab_pad = (int)curbuf->b_p_ts
- (ind_done % (int)curbuf->b_p_ts);
/* stop if this tab will overshoot the target */
if (todo < tab_pad)
break;
todo -= tab_pad;
ind_done += tab_pad;
}
else
{
--todo;
++ind_done;
}
*s++ = *p++;
}
/* Fill to next tabstop with a tab, if possible */
tab_pad = (int)curbuf->b_p_ts - (ind_done % (int)curbuf->b_p_ts);
if (todo >= tab_pad)
{
*s++ = TAB;
todo -= tab_pad;
}
p = skipwhite(p);
}
while (todo >= (int)curbuf->b_p_ts)
{
*s++ = TAB;
todo -= (int)curbuf->b_p_ts;
}
}
while (todo > 0)
{
*s++ = ' ';
--todo;
}
mch_memmove(s, p, (size_t)line_len);
/* Replace the line (unless undo fails). */
if (!(flags & SIN_UNDO) || u_savesub(curwin->w_cursor.lnum) == OK)
{
ml_replace(curwin->w_cursor.lnum, newline, FALSE);
if (flags & SIN_CHANGED)
changed_bytes(curwin->w_cursor.lnum, 0);
/* Correct saved cursor position if it's after the indent. */
if (saved_cursor.lnum == curwin->w_cursor.lnum
&& saved_cursor.col >= (colnr_T)(p - oldline))
saved_cursor.col += ind_len - (colnr_T)(p - oldline);
retval = TRUE;
}
else
vim_free(newline);
curwin->w_cursor.col = ind_len;
return retval;
}
/*
* Copy the indent from ptr to the current line (and fill to size)
* Leaves the cursor on the first non-blank in the line.
* Returns TRUE if the line was changed.
*/
static int
copy_indent(size, src)
int size;
char_u *src;
{
char_u *p = NULL;
char_u *line = NULL;
char_u *s;
int todo;
int ind_len;
int line_len = 0;
int tab_pad;
int ind_done;
int round;
/* Round 1: compute the number of characters needed for the indent
* Round 2: copy the characters. */
for (round = 1; round <= 2; ++round)
{
todo = size;
ind_len = 0;
ind_done = 0;
s = src;
/* Count/copy the usable portion of the source line */
while (todo > 0 && vim_iswhite(*s))
{
if (*s == TAB)
{
tab_pad = (int)curbuf->b_p_ts
- (ind_done % (int)curbuf->b_p_ts);
/* Stop if this tab will overshoot the target */
if (todo < tab_pad)
break;
todo -= tab_pad;
ind_done += tab_pad;
}
else
{
--todo;
++ind_done;
}
++ind_len;
if (p != NULL)
*p++ = *s;
++s;
}
/* Fill to next tabstop with a tab, if possible */
tab_pad = (int)curbuf->b_p_ts - (ind_done % (int)curbuf->b_p_ts);
if (todo >= tab_pad)
{
todo -= tab_pad;
++ind_len;
if (p != NULL)
*p++ = TAB;
}
/* Add tabs required for indent */
while (todo >= (int)curbuf->b_p_ts)
{
todo -= (int)curbuf->b_p_ts;
++ind_len;
if (p != NULL)
*p++ = TAB;
}
/* Count/add spaces required for indent */
while (todo > 0)
{
--todo;
++ind_len;
if (p != NULL)
*p++ = ' ';
}
if (p == NULL)
{
/* Allocate memory for the result: the copied indent, new indent
* and the rest of the line. */
line_len = (int)STRLEN(ml_get_curline()) + 1;
line = alloc(ind_len + line_len);
if (line == NULL)
return FALSE;
p = line;
}
}
/* Append the original line */
mch_memmove(p, ml_get_curline(), (size_t)line_len);
/* Replace the line */
ml_replace(curwin->w_cursor.lnum, line, FALSE);
/* Put the cursor after the indent. */
curwin->w_cursor.col = ind_len;
return TRUE;
}
/*
* Return the indent of the current line after a number. Return -1 if no
* number was found. Used for 'n' in 'formatoptions': numbered list.
* Since a pattern is used it can actually handle more than numbers.
*/
int
get_number_indent(lnum)
linenr_T lnum;
{
colnr_T col;
pos_T pos;
regmmatch_T regmatch;
if (lnum > curbuf->b_ml.ml_line_count)
return -1;
pos.lnum = 0;
regmatch.regprog = vim_regcomp(curbuf->b_p_flp, RE_MAGIC);
if (regmatch.regprog != NULL)
{
regmatch.rmm_ic = FALSE;
regmatch.rmm_maxcol = 0;
if (vim_regexec_multi(®match, curwin, curbuf, lnum, (colnr_T)0))
{
pos.lnum = regmatch.endpos[0].lnum + lnum;
pos.col = regmatch.endpos[0].col;
#ifdef FEAT_VIRTUALEDIT
pos.coladd = 0;
#endif
}
vim_free(regmatch.regprog);
}
if (pos.lnum == 0 || *ml_get_pos(&pos) == NUL)
return -1;
getvcol(curwin, &pos, &col, NULL, NULL);
return (int)col;
}
#if defined(FEAT_CINDENT) || defined(FEAT_SMARTINDENT)
static int cin_is_cinword __ARGS((char_u *line));
/*
* Return TRUE if the string "line" starts with a word from 'cinwords'.
*/
static int
cin_is_cinword(line)
char_u *line;
{
char_u *cinw;
char_u *cinw_buf;
int cinw_len;
int retval = FALSE;
int len;
cinw_len = (int)STRLEN(curbuf->b_p_cinw) + 1;
cinw_buf = alloc((unsigned)cinw_len);
if (cinw_buf != NULL)
{
line = skipwhite(line);
for (cinw = curbuf->b_p_cinw; *cinw; )
{
len = copy_option_part(&cinw, cinw_buf, cinw_len, ",");
if (STRNCMP(line, cinw_buf, len) == 0
&& (!vim_iswordc(line[len]) || !vim_iswordc(line[len - 1])))
{
retval = TRUE;
break;
}
}
vim_free(cinw_buf);
}
return retval;
}
#endif
/*
* open_line: Add a new line below or above the current line.
*
* For VREPLACE mode, we only add a new line when we get to the end of the
* file, otherwise we just start replacing the next line.
*
* Caller must take care of undo. Since VREPLACE may affect any number of
* lines however, it may call u_save_cursor() again when starting to change a
* new line.
* "flags": OPENLINE_DELSPACES delete spaces after cursor
* OPENLINE_DO_COM format comments
* OPENLINE_KEEPTRAIL keep trailing spaces
* OPENLINE_MARKFIX adjust mark positions after the line break
*
* Return TRUE for success, FALSE for failure
*/
int
open_line(dir, flags, old_indent)
int dir; /* FORWARD or BACKWARD */
int flags;
int old_indent; /* indent for after ^^D in Insert mode */
{
char_u *saved_line; /* copy of the original line */
char_u *next_line = NULL; /* copy of the next line */
char_u *p_extra = NULL; /* what goes to next line */
int less_cols = 0; /* less columns for mark in new line */
int less_cols_off = 0; /* columns to skip for mark adjust */
pos_T old_cursor; /* old cursor position */
int newcol = 0; /* new cursor column */
int newindent = 0; /* auto-indent of the new line */
int n;
int trunc_line = FALSE; /* truncate current line afterwards */
int retval = FALSE; /* return value, default is FAIL */
#ifdef FEAT_COMMENTS
int extra_len = 0; /* length of p_extra string */
int lead_len; /* length of comment leader */
char_u *lead_flags; /* position in 'comments' for comment leader */
char_u *leader = NULL; /* copy of comment leader */
#endif
char_u *allocated = NULL; /* allocated memory */
#if defined(FEAT_SMARTINDENT) || defined(FEAT_VREPLACE) || defined(FEAT_LISP) \
|| defined(FEAT_CINDENT) || defined(FEAT_COMMENTS)
char_u *p;
#endif
int saved_char = NUL; /* init for GCC */
#if defined(FEAT_SMARTINDENT) || defined(FEAT_COMMENTS)
pos_T *pos;
#endif
#ifdef FEAT_SMARTINDENT
int do_si = (!p_paste && curbuf->b_p_si
# ifdef FEAT_CINDENT
&& !curbuf->b_p_cin
# endif
);
int no_si = FALSE; /* reset did_si afterwards */
int first_char = NUL; /* init for GCC */
#endif
#if defined(FEAT_VREPLACE) && (defined(FEAT_LISP) || defined(FEAT_CINDENT))
int vreplace_mode;
#endif
int did_append; /* appended a new line */
int saved_pi = curbuf->b_p_pi; /* copy of preserveindent setting */
/*
* make a copy of the current line so we can mess with it
*/
saved_line = vim_strsave(ml_get_curline());
if (saved_line == NULL) /* out of memory! */
return FALSE;
#ifdef FEAT_VREPLACE
if (State & VREPLACE_FLAG)
{
/*
* With VREPLACE we make a copy of the next line, which we will be
* starting to replace. First make the new line empty and let vim play
* with the indenting and comment leader to its heart's content. Then
* we grab what it ended up putting on the new line, put back the
* original line, and call ins_char() to put each new character onto
* the line, replacing what was there before and pushing the right
* stuff onto the replace stack. -- webb.
*/
if (curwin->w_cursor.lnum < orig_line_count)
next_line = vim_strsave(ml_get(curwin->w_cursor.lnum + 1));
else
next_line = vim_strsave((char_u *)"");
if (next_line == NULL) /* out of memory! */
goto theend;
/*
* In VREPLACE mode, a NL replaces the rest of the line, and starts
* replacing the next line, so push all of the characters left on the
* line onto the replace stack. We'll push any other characters that
* might be replaced at the start of the next line (due to autoindent
* etc) a bit later.
*/
replace_push(NUL); /* Call twice because BS over NL expects it */
replace_push(NUL);
p = saved_line + curwin->w_cursor.col;
while (*p != NUL)
replace_push(*p++);
saved_line[curwin->w_cursor.col] = NUL;
}
#endif
if ((State & INSERT)
#ifdef FEAT_VREPLACE
&& !(State & VREPLACE_FLAG)
#endif
)
{
p_extra = saved_line + curwin->w_cursor.col;
#ifdef FEAT_SMARTINDENT
if (do_si) /* need first char after new line break */
{
p = skipwhite(p_extra);
first_char = *p;
}
#endif
#ifdef FEAT_COMMENTS
extra_len = (int)STRLEN(p_extra);
#endif
saved_char = *p_extra;
*p_extra = NUL;
}
u_clearline(); /* cannot do "U" command when adding lines */
#ifdef FEAT_SMARTINDENT
did_si = FALSE;
#endif
ai_col = 0;
/*
* If we just did an auto-indent, then we didn't type anything on
* the prior line, and it should be truncated. Do this even if 'ai' is not
* set because automatically inserting a comment leader also sets did_ai.
*/
if (dir == FORWARD && did_ai)
trunc_line = TRUE;
/*
* If 'autoindent' and/or 'smartindent' is set, try to figure out what
* indent to use for the new line.
*/
if (curbuf->b_p_ai
#ifdef FEAT_SMARTINDENT
|| do_si
#endif
)
{
/*
* count white space on current line
*/
newindent = get_indent_str(saved_line, (int)curbuf->b_p_ts);
if (newindent == 0)
newindent = old_indent; /* for ^^D command in insert mode */
#ifdef FEAT_SMARTINDENT
/*
* Do smart indenting.
* In insert/replace mode (only when dir == FORWARD)
* we may move some text to the next line. If it starts with '{'
* don't add an indent. Fixes inserting a NL before '{' in line
* "if (condition) {"
*/
if (!trunc_line && do_si && *saved_line != NUL
&& (p_extra == NULL || first_char != '{'))
{
char_u *ptr;
char_u last_char;
old_cursor = curwin->w_cursor;
ptr = saved_line;
# ifdef FEAT_COMMENTS
if (flags & OPENLINE_DO_COM)
lead_len = get_leader_len(ptr, NULL, FALSE);
else
lead_len = 0;
# endif
if (dir == FORWARD)
{
/*
* Skip preprocessor directives, unless they are
* recognised as comments.
*/
if (
# ifdef FEAT_COMMENTS
lead_len == 0 &&
# endif
ptr[0] == '#')
{
while (ptr[0] == '#' && curwin->w_cursor.lnum > 1)
ptr = ml_get(--curwin->w_cursor.lnum);
newindent = get_indent();
}
# ifdef FEAT_COMMENTS
if (flags & OPENLINE_DO_COM)
lead_len = get_leader_len(ptr, NULL, FALSE);
else
lead_len = 0;
if (lead_len > 0)
{
/*
* This case gets the following right:
* \*
* * A comment (read '\' as '/').
* *\
* #define IN_THE_WAY
* This should line up here;
*/
p = skipwhite(ptr);
if (p[0] == '/' && p[1] == '*')
p++;
if (p[0] == '*')
{
for (p++; *p; p++)
{
if (p[0] == '/' && p[-1] == '*')
{
/*
* End of C comment, indent should line up
* with the line containing the start of
* the comment
*/
curwin->w_cursor.col = (colnr_T)(p - ptr);
if ((pos = findmatch(NULL, NUL)) != NULL)
{
curwin->w_cursor.lnum = pos->lnum;
newindent = get_indent();
}
}
}
}
}
else /* Not a comment line */
# endif
{
/* Find last non-blank in line */
p = ptr + STRLEN(ptr) - 1;
while (p > ptr && vim_iswhite(*p))
--p;
last_char = *p;
/*
* find the character just before the '{' or ';'
*/
if (last_char == '{' || last_char == ';')
{
if (p > ptr)
--p;
while (p > ptr && vim_iswhite(*p))
--p;
}
/*
* Try to catch lines that are split over multiple
* lines. eg:
* if (condition &&
* condition) {
* Should line up here!
* }
*/
if (*p == ')')
{
curwin->w_cursor.col = (colnr_T)(p - ptr);
if ((pos = findmatch(NULL, '(')) != NULL)
{
curwin->w_cursor.lnum = pos->lnum;
newindent = get_indent();
ptr = ml_get_curline();
}
}
/*
* If last character is '{' do indent, without
* checking for "if" and the like.
*/
if (last_char == '{')
{
did_si = TRUE; /* do indent */
no_si = TRUE; /* don't delete it when '{' typed */
}
/*
* Look for "if" and the like, use 'cinwords'.
* Don't do this if the previous line ended in ';' or
* '}'.
*/
else if (last_char != ';' && last_char != '}'
&& cin_is_cinword(ptr))
did_si = TRUE;
}
}
else /* dir == BACKWARD */
{
/*
* Skip preprocessor directives, unless they are
* recognised as comments.
*/
if (
# ifdef FEAT_COMMENTS
lead_len == 0 &&
# endif
ptr[0] == '#')
{
int was_backslashed = FALSE;
while ((ptr[0] == '#' || was_backslashed) &&
curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
{
if (*ptr && ptr[STRLEN(ptr) - 1] == '\\')
was_backslashed = TRUE;
else
was_backslashed = FALSE;
ptr = ml_get(++curwin->w_cursor.lnum);
}
if (was_backslashed)
newindent = 0; /* Got to end of file */
else
newindent = get_indent();
}
p = skipwhite(ptr);
if (*p == '}') /* if line starts with '}': do indent */
did_si = TRUE;
else /* can delete indent when '{' typed */
can_si_back = TRUE;
}
curwin->w_cursor = old_cursor;
}
if (do_si)
can_si = TRUE;
#endif /* FEAT_SMARTINDENT */
did_ai = TRUE;
}
#ifdef FEAT_COMMENTS
/*
* Find out if the current line starts with a comment leader.
* This may then be inserted in front of the new line.
*/
end_comment_pending = NUL;
if (flags & OPENLINE_DO_COM)
lead_len = get_leader_len(saved_line, &lead_flags, dir == BACKWARD);
else
lead_len = 0;
if (lead_len > 0)
{
char_u *lead_repl = NULL; /* replaces comment leader */
int lead_repl_len = 0; /* length of *lead_repl */
char_u lead_middle[COM_MAX_LEN]; /* middle-comment string */
char_u lead_end[COM_MAX_LEN]; /* end-comment string */
char_u *comment_end = NULL; /* where lead_end has been found */
int extra_space = FALSE; /* append extra space */
int current_flag;
int require_blank = FALSE; /* requires blank after middle */
char_u *p2;
/*
* If the comment leader has the start, middle or end flag, it may not
* be used or may be replaced with the middle leader.
*/
for (p = lead_flags; *p && *p != ':'; ++p)
{
if (*p == COM_BLANK)
{
require_blank = TRUE;
continue;
}
if (*p == COM_START || *p == COM_MIDDLE)
{
current_flag = *p;
if (*p == COM_START)
{
/*
* Doing "O" on a start of comment does not insert leader.
*/
if (dir == BACKWARD)
{
lead_len = 0;
break;
}
/* find start of middle part */
(void)copy_option_part(&p, lead_middle, COM_MAX_LEN, ",");
require_blank = FALSE;
}
/*
* Isolate the strings of the middle and end leader.
*/
while (*p && p[-1] != ':') /* find end of middle flags */
{
if (*p == COM_BLANK)
require_blank = TRUE;
++p;
}
(void)copy_option_part(&p, lead_middle, COM_MAX_LEN, ",");
while (*p && p[-1] != ':') /* find end of end flags */
{
/* Check whether we allow automatic ending of comments */
if (*p == COM_AUTO_END)
end_comment_pending = -1; /* means we want to set it */
++p;
}
n = copy_option_part(&p, lead_end, COM_MAX_LEN, ",");
if (end_comment_pending == -1) /* we can set it now */
end_comment_pending = lead_end[n - 1];
/*
* If the end of the comment is in the same line, don't use
* the comment leader.
*/
if (dir == FORWARD)
{
for (p = saved_line + lead_len; *p; ++p)
if (STRNCMP(p, lead_end, n) == 0)
{
comment_end = p;
lead_len = 0;
break;
}
}
/*
* Doing "o" on a start of comment inserts the middle leader.
*/
if (lead_len > 0)
{
if (current_flag == COM_START)
{
lead_repl = lead_middle;
lead_repl_len = (int)STRLEN(lead_middle);
}
/*
* If we have hit RETURN immediately after the start
* comment leader, then put a space after the middle
* comment leader on the next line.
*/
if (!vim_iswhite(saved_line[lead_len - 1])
&& ((p_extra != NULL
&& (int)curwin->w_cursor.col == lead_len)
|| (p_extra == NULL
&& saved_line[lead_len] == NUL)
|| require_blank))
extra_space = TRUE;
}
break;
}
if (*p == COM_END)
{
/*
* Doing "o" on the end of a comment does not insert leader.
* Remember where the end is, might want to use it to find the
* start (for C-comments).
*/
if (dir == FORWARD)
{
comment_end = skipwhite(saved_line);
lead_len = 0;
break;
}
/*
* Doing "O" on the end of a comment inserts the middle leader.
* Find the string for the middle leader, searching backwards.
*/
while (p > curbuf->b_p_com && *p != ',')
--p;
for (lead_repl = p; lead_repl > curbuf->b_p_com
&& lead_repl[-1] != ':'; --lead_repl)
;
lead_repl_len = (int)(p - lead_repl);
/* We can probably always add an extra space when doing "O" on
* the comment-end */
extra_space = TRUE;
/* Check whether we allow automatic ending of comments */
for (p2 = p; *p2 && *p2 != ':'; p2++)
{
if (*p2 == COM_AUTO_END)
end_comment_pending = -1; /* means we want to set it */
}
if (end_comment_pending == -1)
{
/* Find last character in end-comment string */
while (*p2 && *p2 != ',')
p2++;
end_comment_pending = p2[-1];
}
break;
}
if (*p == COM_FIRST)
{
/*
* Comment leader for first line only: Don't repeat leader
* when using "O", blank out leader when using "o".
*/
if (dir == BACKWARD)
lead_len = 0;
else
{
lead_repl = (char_u *)"";
lead_repl_len = 0;
}
break;
}
}
if (lead_len)
{
/* allocate buffer (may concatenate p_exta later) */
leader = alloc(lead_len + lead_repl_len + extra_space +
extra_len + 1);
allocated = leader; /* remember to free it later */
if (leader == NULL)
lead_len = 0;
else
{
vim_strncpy(leader, saved_line, lead_len);
/*
* Replace leader with lead_repl, right or left adjusted
*/
if (lead_repl != NULL)
{
int c = 0;
int off = 0;
for (p = lead_flags; *p && *p != ':'; ++p)
{
if (*p == COM_RIGHT || *p == COM_LEFT)
c = *p;
else if (VIM_ISDIGIT(*p) || *p == '-')
off = getdigits(&p);
}
if (c == COM_RIGHT) /* right adjusted leader */
{
/* find last non-white in the leader to line up with */
for (p = leader + lead_len - 1; p > leader
&& vim_iswhite(*p); --p)
;
++p;
#ifdef FEAT_MBYTE
/* Compute the length of the replaced characters in
* screen characters, not bytes. */
{
int repl_size = vim_strnsize(lead_repl,
lead_repl_len);
int old_size = 0;
char_u *endp = p;
int l;
while (old_size < repl_size && p > leader)
{
mb_ptr_back(leader, p);
old_size += ptr2cells(p);
}
l = lead_repl_len - (int)(endp - p);
if (l != 0)
mch_memmove(endp + l, endp,
(size_t)((leader + lead_len) - endp));
lead_len += l;
}
#else
if (p < leader + lead_repl_len)
p = leader;
else
p -= lead_repl_len;
#endif
mch_memmove(p, lead_repl, (size_t)lead_repl_len);
if (p + lead_repl_len > leader + lead_len)
p[lead_repl_len] = NUL;
/* blank-out any other chars from the old leader. */
while (--p >= leader)
{
#ifdef FEAT_MBYTE
int l = mb_head_off(leader, p);
if (l > 1)
{
p -= l;
if (ptr2cells(p) > 1)
{
p[1] = ' ';
--l;
}
mch_memmove(p + 1, p + l + 1,
(size_t)((leader + lead_len) - (p + l + 1)));
lead_len -= l;
*p = ' ';
}
else
#endif
if (!vim_iswhite(*p))
*p = ' ';
}
}
else /* left adjusted leader */
{
p = skipwhite(leader);
#ifdef FEAT_MBYTE
/* Compute the length of the replaced characters in
* screen characters, not bytes. Move the part that is
* not to be overwritten. */
{
int repl_size = vim_strnsize(lead_repl,
lead_repl_len);
int i;
int l;
for (i = 0; p[i] != NUL && i < lead_len; i += l)
{
l = (*mb_ptr2len)(p + i);
if (vim_strnsize(p, i + l) > repl_size)
break;
}
if (i != lead_repl_len)
{
mch_memmove(p + lead_repl_len, p + i,
(size_t)(lead_len - i - (leader - p)));
lead_len += lead_repl_len - i;
}
}
#endif
mch_memmove(p, lead_repl, (size_t)lead_repl_len);
/* Replace any remaining non-white chars in the old
* leader by spaces. Keep Tabs, the indent must
* remain the same. */
for (p += lead_repl_len; p < leader + lead_len; ++p)
if (!vim_iswhite(*p))
{
/* Don't put a space before a TAB. */
if (p + 1 < leader + lead_len && p[1] == TAB)
{
--lead_len;
mch_memmove(p, p + 1,
(leader + lead_len) - p);
}
else
{
#ifdef FEAT_MBYTE
int l = (*mb_ptr2len)(p);
if (l > 1)
{
if (ptr2cells(p) > 1)
{
/* Replace a double-wide char with
* two spaces */
--l;
*p++ = ' ';
}
mch_memmove(p + 1, p + l,
(leader + lead_len) - p);
lead_len -= l - 1;
}
#endif
*p = ' ';
}
}
*p = NUL;
}
/* Recompute the indent, it may have changed. */
if (curbuf->b_p_ai
#ifdef FEAT_SMARTINDENT
|| do_si
#endif
)
newindent = get_indent_str(leader, (int)curbuf->b_p_ts);
/* Add the indent offset */
if (newindent + off < 0)
{
off = -newindent;
newindent = 0;
}
else
newindent += off;
/* Correct trailing spaces for the shift, so that
* alignment remains equal. */
while (off > 0 && lead_len > 0
&& leader[lead_len - 1] == ' ')
{
/* Don't do it when there is a tab before the space */
if (vim_strchr(skipwhite(leader), '\t') != NULL)
break;
--lead_len;
--off;
}
/* If the leader ends in white space, don't add an
* extra space */
if (lead_len > 0 && vim_iswhite(leader[lead_len - 1]))
extra_space = FALSE;
leader[lead_len] = NUL;
}
if (extra_space)
{
leader[lead_len++] = ' ';
leader[lead_len] = NUL;
}
newcol = lead_len;
/*
* if a new indent will be set below, remove the indent that
* is in the comment leader
*/
if (newindent
#ifdef FEAT_SMARTINDENT
|| did_si
#endif
)
{
while (lead_len && vim_iswhite(*leader))
{
--lead_len;
--newcol;
++leader;
}
}
}
#ifdef FEAT_SMARTINDENT
did_si = can_si = FALSE;
#endif
}
else if (comment_end != NULL)
{
/*
* We have finished a comment, so we don't use the leader.
* If this was a C-comment and 'ai' or 'si' is set do a normal
* indent to align with the line containing the start of the
* comment.
*/
if (comment_end[0] == '*' && comment_end[1] == '/' &&
(curbuf->b_p_ai
#ifdef FEAT_SMARTINDENT
|| do_si
#endif
))
{
old_cursor = curwin->w_cursor;
curwin->w_cursor.col = (colnr_T)(comment_end - saved_line);
if ((pos = findmatch(NULL, NUL)) != NULL)
{
curwin->w_cursor.lnum = pos->lnum;
newindent = get_indent();
}
curwin->w_cursor = old_cursor;
}
}
}
#endif
/* (State == INSERT || State == REPLACE), only when dir == FORWARD */
if (p_extra != NULL)
{
*p_extra = saved_char; /* restore char that NUL replaced */
/*
* When 'ai' set or "flags" has OPENLINE_DELSPACES, skip to the first
* non-blank.
*
* When in REPLACE mode, put the deleted blanks on the replace stack,
* preceded by a NUL, so they can be put back when a BS is entered.
*/
if (REPLACE_NORMAL(State))
replace_push(NUL); /* end of extra blanks */
if (curbuf->b_p_ai || (flags & OPENLINE_DELSPACES))
{
while ((*p_extra == ' ' || *p_extra == '\t')
#ifdef FEAT_MBYTE
&& (!enc_utf8
|| !utf_iscomposing(utf_ptr2char(p_extra + 1)))
#endif
)
{
if (REPLACE_NORMAL(State))
replace_push(*p_extra);
++p_extra;
++less_cols_off;
}
}
if (*p_extra != NUL)
did_ai = FALSE; /* append some text, don't truncate now */
/* columns for marks adjusted for removed columns */
less_cols = (int)(p_extra - saved_line);
}
if (p_extra == NULL)
p_extra = (char_u *)""; /* append empty line */
#ifdef FEAT_COMMENTS
/* concatenate leader and p_extra, if there is a leader */
if (lead_len)
{
STRCAT(leader, p_extra);
p_extra = leader;
did_ai = TRUE; /* So truncating blanks works with comments */
less_cols -= lead_len;
}
else
end_comment_pending = NUL; /* turns out there was no leader */
#endif
old_cursor = curwin->w_cursor;
if (dir == BACKWARD)
--curwin->w_cursor.lnum;
#ifdef FEAT_VREPLACE
if (!(State & VREPLACE_FLAG) || old_cursor.lnum >= orig_line_count)
#endif
{
if (ml_append(curwin->w_cursor.lnum, p_extra, (colnr_T)0, FALSE)
== FAIL)
goto theend;
/* Postpone calling changed_lines(), because it would mess up folding
* with markers. */
mark_adjust(curwin->w_cursor.lnum + 1, (linenr_T)MAXLNUM, 1L, 0L);
did_append = TRUE;
}
#ifdef FEAT_VREPLACE
else
{
/*
* In VREPLACE mode we are starting to replace the next line.
*/
curwin->w_cursor.lnum++;
if (curwin->w_cursor.lnum >= Insstart.lnum + vr_lines_changed)
{
/* In case we NL to a new line, BS to the previous one, and NL
* again, we don't want to save the new line for undo twice.
*/
(void)u_save_cursor(); /* errors are ignored! */
vr_lines_changed++;
}
ml_replace(curwin->w_cursor.lnum, p_extra, TRUE);
changed_bytes(curwin->w_cursor.lnum, 0);
curwin->w_cursor.lnum--;
did_append = FALSE;
}
#endif
if (newindent
#ifdef FEAT_SMARTINDENT
|| did_si
#endif
)
{
++curwin->w_cursor.lnum;
#ifdef FEAT_SMARTINDENT
if (did_si)
{
if (p_sr)
newindent -= newindent % (int)curbuf->b_p_sw;
newindent += (int)curbuf->b_p_sw;
}
#endif
/* Copy the indent only if expand tab is disabled */
if (curbuf->b_p_ci && !curbuf->b_p_et)
{
(void)copy_indent(newindent, saved_line);
/*
* Set the 'preserveindent' option so that any further screwing
* with the line doesn't entirely destroy our efforts to preserve
* it. It gets restored at the function end.
*/
curbuf->b_p_pi = TRUE;
}
else
(void)set_indent(newindent, SIN_INSERT);
less_cols -= curwin->w_cursor.col;
ai_col = curwin->w_cursor.col;
/*
* In REPLACE mode, for each character in the new indent, there must
* be a NUL on the replace stack, for when it is deleted with BS
*/
if (REPLACE_NORMAL(State))
for (n = 0; n < (int)curwin->w_cursor.col; ++n)
replace_push(NUL);
newcol += curwin->w_cursor.col;
#ifdef FEAT_SMARTINDENT
if (no_si)
did_si = FALSE;
#endif
}
#ifdef FEAT_COMMENTS
/*
* In REPLACE mode, for each character in the extra leader, there must be
* a NUL on the replace stack, for when it is deleted with BS.
*/
if (REPLACE_NORMAL(State))
while (lead_len-- > 0)
replace_push(NUL);
#endif
curwin->w_cursor = old_cursor;
if (dir == FORWARD)
{
if (trunc_line || (State & INSERT))
{
/* truncate current line at cursor */
saved_line[curwin->w_cursor.col] = NUL;
/* Remove trailing white space, unless OPENLINE_KEEPTRAIL used. */
if (trunc_line && !(flags & OPENLINE_KEEPTRAIL))
truncate_spaces(saved_line);
ml_replace(curwin->w_cursor.lnum, saved_line, FALSE);
saved_line = NULL;
if (did_append)
{
changed_lines(curwin->w_cursor.lnum, curwin->w_cursor.col,
curwin->w_cursor.lnum + 1, 1L);
did_append = FALSE;
/* Move marks after the line break to the new line. */
if (flags & OPENLINE_MARKFIX)
mark_col_adjust(curwin->w_cursor.lnum,
curwin->w_cursor.col + less_cols_off,
1L, (long)-less_cols);
}
else
changed_bytes(curwin->w_cursor.lnum, curwin->w_cursor.col);
}
/*
* Put the cursor on the new line. Careful: the scrollup() above may
* have moved w_cursor, we must use old_cursor.
*/
curwin->w_cursor.lnum = old_cursor.lnum + 1;
}
if (did_append)
changed_lines(curwin->w_cursor.lnum, 0, curwin->w_cursor.lnum, 1L);
curwin->w_cursor.col = newcol;
#ifdef FEAT_VIRTUALEDIT
curwin->w_cursor.coladd = 0;
#endif
#if defined(FEAT_VREPLACE) && (defined(FEAT_LISP) || defined(FEAT_CINDENT))
/*
* In VREPLACE mode, we are handling the replace stack ourselves, so stop
* fixthisline() from doing it (via change_indent()) by telling it we're in
* normal INSERT mode.
*/
if (State & VREPLACE_FLAG)
{
vreplace_mode = State; /* So we know to put things right later */
State = INSERT;
}
else
vreplace_mode = 0;
#endif
#ifdef FEAT_LISP
/*
* May do lisp indenting.
*/
if (!p_paste
# ifdef FEAT_COMMENTS
&& leader == NULL
# endif
&& curbuf->b_p_lisp
&& curbuf->b_p_ai)
{
fixthisline(get_lisp_indent);
p = ml_get_curline();
ai_col = (colnr_T)(skipwhite(p) - p);
}
#endif
#ifdef FEAT_CINDENT
/*
* May do indenting after opening a new line.
*/
if (!p_paste
&& (curbuf->b_p_cin
# ifdef FEAT_EVAL
|| *curbuf->b_p_inde != NUL
# endif
)
&& in_cinkeys(dir == FORWARD
? KEY_OPEN_FORW
: KEY_OPEN_BACK, ' ', linewhite(curwin->w_cursor.lnum)))
{
do_c_expr_indent();
p = ml_get_curline();
ai_col = (colnr_T)(skipwhite(p) - p);
}
#endif
#if defined(FEAT_VREPLACE) && (defined(FEAT_LISP) || defined(FEAT_CINDENT))
if (vreplace_mode != 0)
State = vreplace_mode;
#endif
#ifdef FEAT_VREPLACE
/*
* Finally, VREPLACE gets the stuff on the new line, then puts back the
* original line, and inserts the new stuff char by char, pushing old stuff
* onto the replace stack (via ins_char()).
*/
if (State & VREPLACE_FLAG)
{
/* Put new line in p_extra */
p_extra = vim_strsave(ml_get_curline());
if (p_extra == NULL)
goto theend;
/* Put back original line */
ml_replace(curwin->w_cursor.lnum, next_line, FALSE);
/* Insert new stuff into line again */
curwin->w_cursor.col = 0;
#ifdef FEAT_VIRTUALEDIT
curwin->w_cursor.coladd = 0;
#endif
ins_bytes(p_extra); /* will call changed_bytes() */
vim_free(p_extra);
next_line = NULL;
}
#endif
retval = TRUE; /* success! */
theend:
curbuf->b_p_pi = saved_pi;
vim_free(saved_line);
vim_free(next_line);
vim_free(allocated);
return retval;
}
#if defined(FEAT_COMMENTS) || defined(PROTO)
/*
* get_leader_len() returns the length of the prefix of the given string
* which introduces a comment. If this string is not a comment then 0 is
* returned.
* When "flags" is not NULL, it is set to point to the flags of the recognized
* comment leader.
* "backward" must be true for the "O" command.
*/
int
get_leader_len(line, flags, backward)
char_u *line;
char_u **flags;
int backward;
{
int i, j;
int got_com = FALSE;
int found_one;
char_u part_buf[COM_MAX_LEN]; /* buffer for one option part */
char_u *string; /* pointer to comment string */
char_u *list;
i = 0;
while (vim_iswhite(line[i])) /* leading white space is ignored */
++i;
/*
* Repeat to match several nested comment strings.
*/
while (line[i])
{
/*
* scan through the 'comments' option for a match
*/
found_one = FALSE;
for (list = curbuf->b_p_com; *list; )
{
/*
* Get one option part into part_buf[]. Advance list to next one.
* put string at start of string.
*/
if (!got_com && flags != NULL) /* remember where flags started */
*flags = list;
(void)copy_option_part(&list, part_buf, COM_MAX_LEN, ",");
string = vim_strchr(part_buf, ':');
if (string == NULL) /* missing ':', ignore this part */
continue;
*string++ = NUL; /* isolate flags from string */
/*
* When already found a nested comment, only accept further
* nested comments.
*/
if (got_com && vim_strchr(part_buf, COM_NEST) == NULL)
continue;
/* When 'O' flag used don't use for "O" command */
if (backward && vim_strchr(part_buf, COM_NOBACK) != NULL)
continue;
/*
* Line contents and string must match.
* When string starts with white space, must have some white space
* (but the amount does not need to match, there might be a mix of
* TABs and spaces).
*/
if (vim_iswhite(string[0]))
{
if (i == 0 || !vim_iswhite(line[i - 1]))
continue;
while (vim_iswhite(string[0]))
++string;
}
for (j = 0; string[j] != NUL && string[j] == line[i + j]; ++j)
;
if (string[j] != NUL)
continue;
/*
* When 'b' flag used, there must be white space or an
* end-of-line after the string in the line.
*/
if (vim_strchr(part_buf, COM_BLANK) != NULL
&& !vim_iswhite(line[i + j]) && line[i + j] != NUL)
continue;
/*
* We have found a match, stop searching.
*/
i += j;
got_com = TRUE;
found_one = TRUE;
break;
}
/*
* No match found, stop scanning.
*/
if (!found_one)
break;
/*
* Include any trailing white space.
*/
while (vim_iswhite(line[i]))
++i;
/*
* If this comment doesn't nest, stop here.
*/
if (vim_strchr(part_buf, COM_NEST) == NULL)
break;
}
return (got_com ? i : 0);
}
#endif
/*
* Return the number of window lines occupied by buffer line "lnum".
*/
int
plines(lnum)
linenr_T lnum;
{
return plines_win(curwin, lnum, TRUE);
}
int
plines_win(wp, lnum, winheight)
win_T *wp;
linenr_T lnum;
int winheight; /* when TRUE limit to window height */
{
#if defined(FEAT_DIFF) || defined(PROTO)
/* Check for filler lines above this buffer line. When folded the result
* is one line anyway. */
return plines_win_nofill(wp, lnum, winheight) + diff_check_fill(wp, lnum);
}
int
plines_nofill(lnum)
linenr_T lnum;
{
return plines_win_nofill(curwin, lnum, TRUE);
}
int
plines_win_nofill(wp, lnum, winheight)
win_T *wp;
linenr_T lnum;
int winheight; /* when TRUE limit to window height */
{
#endif
int lines;
if (!wp->w_p_wrap)
return 1;
#ifdef FEAT_VERTSPLIT
if (wp->w_width == 0)
return 1;
#endif
#ifdef FEAT_FOLDING
/* A folded lines is handled just like an empty line. */
/* NOTE: Caller must handle lines that are MAYBE folded. */
if (lineFolded(wp, lnum) == TRUE)
return 1;
#endif
lines = plines_win_nofold(wp, lnum);
if (winheight > 0 && lines > wp->w_height)
return (int)wp->w_height;
return lines;
}
/*
* Return number of window lines physical line "lnum" will occupy in window
* "wp". Does not care about folding, 'wrap' or 'diff'.
*/
int
plines_win_nofold(wp, lnum)
win_T *wp;
linenr_T lnum;
{
char_u *s;
long col;
int width;
s = ml_get_buf(wp->w_buffer, lnum, FALSE);
if (*s == NUL) /* empty line */
return 1;
col = win_linetabsize(wp, s, (colnr_T)MAXCOL);
/*
* If list mode is on, then the '$' at the end of the line may take up one
* extra column.
*/
if (wp->w_p_list && lcs_eol != NUL)
col += 1;
/*
* Add column offset for 'number' and 'foldcolumn'.
*/
width = W_WIDTH(wp) - win_col_off(wp);
if (width <= 0)
return 32000;
if (col <= width)
return 1;
col -= width;
width += win_col_off2(wp);
return (col + (width - 1)) / width + 1;
}
/*
* Like plines_win(), but only reports the number of physical screen lines
* used from the start of the line to the given column number.
*/
int
plines_win_col(wp, lnum, column)
win_T *wp;
linenr_T lnum;
long column;
{
long col;
char_u *s;
int lines = 0;
int width;
#ifdef FEAT_DIFF
/* Check for filler lines above this buffer line. When folded the result
* is one line anyway. */
lines = diff_check_fill(wp, lnum);
#endif
if (!wp->w_p_wrap)
return lines + 1;
#ifdef FEAT_VERTSPLIT
if (wp->w_width == 0)
return lines + 1;
#endif
s = ml_get_buf(wp->w_buffer, lnum, FALSE);
col = 0;
while (*s != NUL && --column >= 0)
{
col += win_lbr_chartabsize(wp, s, (colnr_T)col, NULL);
mb_ptr_adv(s);
}
/*
* If *s is a TAB, and the TAB is not displayed as ^I, and we're not in
* INSERT mode, then col must be adjusted so that it represents the last
* screen position of the TAB. This only fixes an error when the TAB wraps
* from one screen line to the next (when 'columns' is not a multiple of
* 'ts') -- webb.
*/
if (*s == TAB && (State & NORMAL) && (!wp->w_p_list || lcs_tab1))
col += win_lbr_chartabsize(wp, s, (colnr_T)col, NULL) - 1;
/*
* Add column offset for 'number', 'foldcolumn', etc.
*/
width = W_WIDTH(wp) - win_col_off(wp);
if (width <= 0)
return 9999;
lines += 1;
if (col > width)
lines += (col - width) / (width + win_col_off2(wp)) + 1;
return lines;
}
int
plines_m_win(wp, first, last)
win_T *wp;
linenr_T first, last;
{
int count = 0;
while (first <= last)
{
#ifdef FEAT_FOLDING
int x;
/* Check if there are any really folded lines, but also included lines
* that are maybe folded. */
x = foldedCount(wp, first, NULL);
if (x > 0)
{
++count; /* count 1 for "+-- folded" line */
first += x;
}
else
#endif
{
#ifdef FEAT_DIFF
if (first == wp->w_topline)
count += plines_win_nofill(wp, first, TRUE) + wp->w_topfill;
else
#endif
count += plines_win(wp, first, TRUE);
++first;
}
}
return (count);
}
#if defined(FEAT_VREPLACE) || defined(FEAT_INS_EXPAND) || defined(PROTO)
/*
* Insert string "p" at the cursor position. Stops at a NUL byte.
* Handles Replace mode and multi-byte characters.
*/
void
ins_bytes(p)
char_u *p;
{
ins_bytes_len(p, (int)STRLEN(p));
}
#endif
#if defined(FEAT_VREPLACE) || defined(FEAT_INS_EXPAND) \
|| defined(FEAT_COMMENTS) || defined(FEAT_MBYTE) || defined(PROTO)
/*
* Insert string "p" with length "len" at the cursor position.
* Handles Replace mode and multi-byte characters.
*/
void
ins_bytes_len(p, len)
char_u *p;
int len;
{
int i;
# ifdef FEAT_MBYTE
int n;
for (i = 0; i < len; i += n)
{
n = (*mb_ptr2len)(p + i);
ins_char_bytes(p + i, n);
}
# else
for (i = 0; i < len; ++i)
ins_char(p[i]);
# endif
}
#endif
/*
* Insert or replace a single character at the cursor position.
* When in REPLACE or VREPLACE mode, replace any existing character.
* Caller must have prepared for undo.
* For multi-byte characters we get the whole character, the caller must
* convert bytes to a character.
*/
void
ins_char(c)
int c;
{
#if defined(FEAT_MBYTE) || defined(PROTO)
char_u buf[MB_MAXBYTES];
int n;
n = (*mb_char2bytes)(c, buf);
/* When "c" is 0x100, 0x200, etc. we don't want to insert a NUL byte.
* Happens for CTRL-Vu9900. */
if (buf[0] == 0)
buf[0] = '\n';
ins_char_bytes(buf, n);
}
void
ins_char_bytes(buf, charlen)
char_u *buf;
int charlen;
{
int c = buf[0];
int l, j;
#endif
int newlen; /* nr of bytes inserted */
int oldlen; /* nr of bytes deleted (0 when not replacing) */
char_u *p;
char_u *newp;
char_u *oldp;
int linelen; /* length of old line including NUL */
colnr_T col;
linenr_T lnum = curwin->w_cursor.lnum;
int i;
#ifdef FEAT_VIRTUALEDIT
/* Break tabs if needed. */
if (virtual_active() && curwin->w_cursor.coladd > 0)
coladvance_force(getviscol());
#endif
col = curwin->w_cursor.col;
oldp = ml_get(lnum);
linelen = (int)STRLEN(oldp) + 1;
/* The lengths default to the values for when not replacing. */
oldlen = 0;
#ifdef FEAT_MBYTE
newlen = charlen;
#else
newlen = 1;
#endif
if (State & REPLACE_FLAG)
{
#ifdef FEAT_VREPLACE
if (State & VREPLACE_FLAG)
{
colnr_T new_vcol = 0; /* init for GCC */
colnr_T vcol;
int old_list;
#ifndef FEAT_MBYTE
char_u buf[2];
#endif
/*
* Disable 'list' temporarily, unless 'cpo' contains the 'L' flag.
* Returns the old value of list, so when finished,
* curwin->w_p_list should be set back to this.
*/
old_list = curwin->w_p_list;
if (old_list && vim_strchr(p_cpo, CPO_LISTWM) == NULL)
curwin->w_p_list = FALSE;
/*
* In virtual replace mode each character may replace one or more
* characters (zero if it's a TAB). Count the number of bytes to
* be deleted to make room for the new character, counting screen
* cells. May result in adding spaces to fill a gap.
*/
getvcol(curwin, &curwin->w_cursor, NULL, &vcol, NULL);
#ifndef FEAT_MBYTE
buf[0] = c;
buf[1] = NUL;
#endif
new_vcol = vcol + chartabsize(buf, vcol);
while (oldp[col + oldlen] != NUL && vcol < new_vcol)
{
vcol += chartabsize(oldp + col + oldlen, vcol);
/* Don't need to remove a TAB that takes us to the right
* position. */
if (vcol > new_vcol && oldp[col + oldlen] == TAB)
break;
#ifdef FEAT_MBYTE
oldlen += (*mb_ptr2len)(oldp + col + oldlen);
#else
++oldlen;
#endif
/* Deleted a bit too much, insert spaces. */
if (vcol > new_vcol)
newlen += vcol - new_vcol;
}
curwin->w_p_list = old_list;
}
else
#endif
if (oldp[col] != NUL)
{
/* normal replace */
#ifdef FEAT_MBYTE
oldlen = (*mb_ptr2len)(oldp + col);
#else
oldlen = 1;
#endif
}
/* Push the replaced bytes onto the replace stack, so that they can be
* put back when BS is used. The bytes of a multi-byte character are
* done the other way around, so that the first byte is popped off
* first (it tells the byte length of the character). */
replace_push(NUL);
for (i = 0; i < oldlen; ++i)
{
#ifdef FEAT_MBYTE
l = (*mb_ptr2len)(oldp + col + i) - 1;
for (j = l; j >= 0; --j)
replace_push(oldp[col + i + j]);
i += l;
#else
replace_push(oldp[col + i]);
#endif
}
}
newp = alloc_check((unsigned)(linelen + newlen - oldlen));
if (newp == NULL)
return;
/* Copy bytes before the cursor. */
if (col > 0)
mch_memmove(newp, oldp, (size_t)col);
/* Copy bytes after the changed character(s). */
p = newp + col;
mch_memmove(p + newlen, oldp + col + oldlen,
(size_t)(linelen - col - oldlen));
/* Insert or overwrite the new character. */
#ifdef FEAT_MBYTE
mch_memmove(p, buf, charlen);
i = charlen;
#else
*p = c;
i = 1;
#endif
/* Fill with spaces when necessary. */
while (i < newlen)
p[i++] = ' ';
/* Replace the line in the buffer. */
ml_replace(lnum, newp, FALSE);
/* mark the buffer as changed and prepare for displaying */
changed_bytes(lnum, col);
/*
* If we're in Insert or Replace mode and 'showmatch' is set, then briefly
* show the match for right parens and braces.
*/
if (p_sm && (State & INSERT)
&& msg_silent == 0
#ifdef FEAT_MBYTE
&& charlen == 1
#endif
#ifdef FEAT_INS_EXPAND
&& !ins_compl_active()
#endif
)
showmatch(c);
#ifdef FEAT_RIGHTLEFT
if (!p_ri || (State & REPLACE_FLAG))
#endif
{
/* Normal insert: move cursor right */
#ifdef FEAT_MBYTE
curwin->w_cursor.col += charlen;
#else
++curwin->w_cursor.col;
#endif
}
/*
* TODO: should try to update w_row here, to avoid recomputing it later.
*/
}
/*
* Insert a string at the cursor position.
* Note: Does NOT handle Replace mode.
* Caller must have prepared for undo.
*/
void
ins_str(s)
char_u *s;
{
char_u *oldp, *newp;
int newlen = (int)STRLEN(s);
int oldlen;
colnr_T col;
linenr_T lnum = curwin->w_cursor.lnum;
#ifdef FEAT_VIRTUALEDIT
if (virtual_active() && curwin->w_cursor.coladd > 0)
coladvance_force(getviscol());
#endif
col = curwin->w_cursor.col;
oldp = ml_get(lnum);
oldlen = (int)STRLEN(oldp);
newp = alloc_check((unsigned)(oldlen + newlen + 1));
if (newp == NULL)
return;
if (col > 0)
mch_memmove(newp, oldp, (size_t)col);
mch_memmove(newp + col, s, (size_t)newlen);
mch_memmove(newp + col + newlen, oldp + col, (size_t)(oldlen - col + 1));
ml_replace(lnum, newp, FALSE);
changed_bytes(lnum, col);
curwin->w_cursor.col += newlen;
}
/*
* Delete one character under the cursor.
* If "fixpos" is TRUE, don't leave the cursor on the NUL after the line.
* Caller must have prepared for undo.
*
* return FAIL for failure, OK otherwise
*/
int
del_char(fixpos)
int fixpos;
{
#ifdef FEAT_MBYTE
if (has_mbyte)
{
/* Make sure the cursor is at the start of a character. */
mb_adjust_cursor();
if (*ml_get_cursor() == NUL)
return FAIL;
return del_chars(1L, fixpos);
}
#endif
return del_bytes(1L, fixpos, TRUE);
}
#if defined(FEAT_MBYTE) || defined(PROTO)
/*
* Like del_bytes(), but delete characters instead of bytes.
*/
int
del_chars(count, fixpos)
long count;
int fixpos;
{
long bytes = 0;
long i;
char_u *p;
int l;
p = ml_get_cursor();
for (i = 0; i < count && *p != NUL; ++i)
{
l = (*mb_ptr2len)(p);
bytes += l;
p += l;
}
return del_bytes(bytes, fixpos, TRUE);
}
#endif
/*
* Delete "count" bytes under the cursor.
* If "fixpos" is TRUE, don't leave the cursor on the NUL after the line.
* Caller must have prepared for undo.
*
* return FAIL for failure, OK otherwise
*/
/*ARGSUSED*/
int
del_bytes(count, fixpos_arg, use_delcombine)
long count;
int fixpos_arg;
int use_delcombine; /* 'delcombine' option applies */
{
char_u *oldp, *newp;
colnr_T oldlen;
linenr_T lnum = curwin->w_cursor.lnum;
colnr_T col = curwin->w_cursor.col;
int was_alloced;
long movelen;
int fixpos = fixpos_arg;
oldp = ml_get(lnum);
oldlen = (int)STRLEN(oldp);
/*
* Can't do anything when the cursor is on the NUL after the line.
*/
if (col >= oldlen)
return FAIL;
#ifdef FEAT_MBYTE
/* If 'delcombine' is set and deleting (less than) one character, only
* delete the last combining character. */
if (p_deco && use_delcombine && enc_utf8
&& utfc_ptr2len(oldp + col) >= count)
{
int cc[MAX_MCO];
int n;
(void)utfc_ptr2char(oldp + col, cc);
if (cc[0] != NUL)
{
/* Find the last composing char, there can be several. */
n = col;
do
{
col = n;
count = utf_ptr2len(oldp + n);
n += count;
} while (UTF_COMPOSINGLIKE(oldp + col, oldp + n));
fixpos = 0;
}
}
#endif
/*
* When count is too big, reduce it.
*/
movelen = (long)oldlen - (long)col - count + 1; /* includes trailing NUL */
if (movelen <= 1)
{
/*
* If we just took off the last character of a non-blank line, and
* fixpos is TRUE, we don't want to end up positioned at the NUL,
* unless "restart_edit" is set or 'virtualedit' contains "onemore".
*/
if (col > 0 && fixpos && restart_edit == 0
#ifdef FEAT_VIRTUALEDIT
&& (ve_flags & VE_ONEMORE) == 0
#endif
)
{
--curwin->w_cursor.col;
#ifdef FEAT_VIRTUALEDIT
curwin->w_cursor.coladd = 0;
#endif
#ifdef FEAT_MBYTE
if (has_mbyte)
curwin->w_cursor.col -=
(*mb_head_off)(oldp, oldp + curwin->w_cursor.col);
#endif
}
count = oldlen - col;
movelen = 1;
}
/*
* If the old line has been allocated the deletion can be done in the
* existing line. Otherwise a new line has to be allocated
*/
was_alloced = ml_line_alloced(); /* check if oldp was allocated */
#ifdef FEAT_NETBEANS_INTG
if (was_alloced && usingNetbeans)
netbeans_removed(curbuf, lnum, col, count);
/* else is handled by ml_replace() */
#endif
if (was_alloced)
newp = oldp; /* use same allocated memory */
else
{ /* need to allocate a new line */
newp = alloc((unsigned)(oldlen + 1 - count));
if (newp == NULL)
return FAIL;
mch_memmove(newp, oldp, (size_t)col);
}
mch_memmove(newp + col, oldp + col + count, (size_t)movelen);
if (!was_alloced)
ml_replace(lnum, newp, FALSE);
/* mark the buffer as changed and prepare for displaying */
changed_bytes(lnum, curwin->w_cursor.col);
return OK;
}
/*
* Delete from cursor to end of line.
* Caller must have prepared for undo.
*
* return FAIL for failure, OK otherwise
*/
int
truncate_line(fixpos)
int fixpos; /* if TRUE fix the cursor position when done */
{
char_u *newp;
linenr_T lnum = curwin->w_cursor.lnum;
colnr_T col = curwin->w_cursor.col;
if (col == 0)
newp = vim_strsave((char_u *)"");
else
newp = vim_strnsave(ml_get(lnum), col);
if (newp == NULL)
return FAIL;
ml_replace(lnum, newp, FALSE);
/* mark the buffer as changed and prepare for displaying */
changed_bytes(lnum, curwin->w_cursor.col);
/*
* If "fixpos" is TRUE we don't want to end up positioned at the NUL.
*/
if (fixpos && curwin->w_cursor.col > 0)
--curwin->w_cursor.col;
return OK;
}
/*
* Delete "nlines" lines at the cursor.
* Saves the lines for undo first if "undo" is TRUE.
*/
void
del_lines(nlines, undo)
long nlines; /* number of lines to delete */
int undo; /* if TRUE, prepare for undo */
{
long n;
if (nlines <= 0)
return;
/* save the deleted lines for undo */
if (undo && u_savedel(curwin->w_cursor.lnum, nlines) == FAIL)
return;
for (n = 0; n < nlines; )
{
if (curbuf->b_ml.ml_flags & ML_EMPTY) /* nothing to delete */
break;
ml_delete(curwin->w_cursor.lnum, TRUE);
++n;
/* If we delete the last line in the file, stop */
if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
break;
}
/* adjust marks, mark the buffer as changed and prepare for displaying */
deleted_lines_mark(curwin->w_cursor.lnum, n);
curwin->w_cursor.col = 0;
check_cursor_lnum();
}
int
gchar_pos(pos)
pos_T *pos;
{
char_u *ptr = ml_get_pos(pos);
#ifdef FEAT_MBYTE
if (has_mbyte)
return (*mb_ptr2char)(ptr);
#endif
return (int)*ptr;
}
int
gchar_cursor()
{
#ifdef FEAT_MBYTE
if (has_mbyte)
return (*mb_ptr2char)(ml_get_cursor());
#endif
return (int)*ml_get_cursor();
}
/*
* Write a character at the current cursor position.
* It is directly written into the block.
*/
void
pchar_cursor(c)
int c;
{
*(ml_get_buf(curbuf, curwin->w_cursor.lnum, TRUE)
+ curwin->w_cursor.col) = c;
}
#if 0 /* not used */
/*
* Put *pos at end of current buffer
*/
void
goto_endofbuf(pos)
pos_T *pos;
{
char_u *p;
pos->lnum = curbuf->b_ml.ml_line_count;
pos->col = 0;
p = ml_get(pos->lnum);
while (*p++)
++pos->col;
}
#endif
/*
* When extra == 0: Return TRUE if the cursor is before or on the first
* non-blank in the line.
* When extra == 1: Return TRUE if the cursor is before the first non-blank in
* the line.
*/
int
inindent(extra)
int extra;
{
char_u *ptr;
colnr_T col;
for (col = 0, ptr = ml_get_curline(); vim_iswhite(*ptr); ++col)
++ptr;
if (col >= curwin->w_cursor.col + extra)
return TRUE;
else
return FALSE;
}
/*
* Skip to next part of an option argument: Skip space and comma.
*/
char_u *
skip_to_option_part(p)
char_u *p;
{
if (*p == ',')
++p;
while (*p == ' ')
++p;
return p;
}
/*
* changed() is called when something in the current buffer is changed.
*
* Most often called through changed_bytes() and changed_lines(), which also
* mark the area of the display to be redrawn.
*/
void
changed()
{
#if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
/* The text of the preediting area is inserted, but this doesn't
* mean a change of the buffer yet. That is delayed until the
* text is committed. (this means preedit becomes empty) */
if (im_is_preediting() && !xim_changed_while_preediting)
return;
xim_changed_while_preediting = FALSE;
#endif
if (!curbuf->b_changed)
{
int save_msg_scroll = msg_scroll;
/* Give a warning about changing a read-only file. This may also
* check-out the file, thus change "curbuf"! */
change_warning(0);
/* Create a swap file if that is wanted.
* Don't do this for "nofile" and "nowrite" buffer types. */
if (curbuf->b_may_swap
#ifdef FEAT_QUICKFIX
&& !bt_dontwrite(curbuf)
#endif
)
{
ml_open_file(curbuf);
/* The ml_open_file() can cause an ATTENTION message.
* Wait two seconds, to make sure the user reads this unexpected
* message. Since we could be anywhere, call wait_return() now,
* and don't let the emsg() set msg_scroll. */
if (need_wait_return && emsg_silent == 0)
{
out_flush();
ui_delay(2000L, TRUE);
wait_return(TRUE);
msg_scroll = save_msg_scroll;
}
}
curbuf->b_changed = TRUE;
ml_setflags(curbuf);
#ifdef FEAT_WINDOWS
check_status(curbuf);
redraw_tabline = TRUE;
#endif
#ifdef FEAT_TITLE
need_maketitle = TRUE; /* set window title later */
#endif
}
++curbuf->b_changedtick;
}
static void changedOneline __ARGS((buf_T *buf, linenr_T lnum));
static void changed_lines_buf __ARGS((buf_T *buf, linenr_T lnum, linenr_T lnume, long xtra));
static void changed_common __ARGS((linenr_T lnum, colnr_T col, linenr_T lnume, long xtra));
/*
* Changed bytes within a single line for the current buffer.
* - marks the windows on this buffer to be redisplayed
* - marks the buffer changed by calling changed()
* - invalidates cached values
*/
void
changed_bytes(lnum, col)
linenr_T lnum;
colnr_T col;
{
changedOneline(curbuf, lnum);
changed_common(lnum, col, lnum + 1, 0L);
#ifdef FEAT_DIFF
/* Diff highlighting in other diff windows may need to be updated too. */
if (curwin->w_p_diff)
{
win_T *wp;
linenr_T wlnum;
for (wp = firstwin; wp != NULL; wp = wp->w_next)
if (wp->w_p_diff && wp != curwin)
{
redraw_win_later(wp, VALID);
wlnum = diff_lnum_win(lnum, wp);
if (wlnum > 0)
changedOneline(wp->w_buffer, wlnum);
}
}
#endif
}
static void
changedOneline(buf, lnum)
buf_T *buf;
linenr_T lnum;
{
if (buf->b_mod_set)
{
/* find the maximum area that must be redisplayed */
if (lnum < buf->b_mod_top)
buf->b_mod_top = lnum;
else if (lnum >= buf->b_mod_bot)
buf->b_mod_bot = lnum + 1;
}
else
{
/* set the area that must be redisplayed to one line */
buf->b_mod_set = TRUE;
buf->b_mod_top = lnum;
buf->b_mod_bot = lnum + 1;
buf->b_mod_xlines = 0;
}
}
/*
* Appended "count" lines below line "lnum" in the current buffer.
* Must be called AFTER the change and after mark_adjust().
* Takes care of marking the buffer to be redrawn and sets the changed flag.
*/
void
appended_lines(lnum, count)
linenr_T lnum;
long count;
{
changed_lines(lnum + 1, 0, lnum + 1, count);
}
/*
* Like appended_lines(), but adjust marks first.
*/
void
appended_lines_mark(lnum, count)
linenr_T lnum;
long count;
{
mark_adjust(lnum + 1, (linenr_T)MAXLNUM, count, 0L);
changed_lines(lnum + 1, 0, lnum + 1, count);
}
/*
* Deleted "count" lines at line "lnum" in the current buffer.
* Must be called AFTER the change and after mark_adjust().
* Takes care of marking the buffer to be redrawn and sets the changed flag.
*/
void
deleted_lines(lnum, count)
linenr_T lnum;
long count;
{
changed_lines(lnum, 0, lnum + count, -count);
}
/*
* Like deleted_lines(), but adjust marks first.
*/
void
deleted_lines_mark(lnum, count)
linenr_T lnum;
long count;
{
mark_adjust(lnum, (linenr_T)(lnum + count - 1), (long)MAXLNUM, -count);
changed_lines(lnum, 0, lnum + count, -count);
}
/*
* Changed lines for the current buffer.
* Must be called AFTER the change and after mark_adjust().
* - mark the buffer changed by calling changed()
* - mark the windows on this buffer to be redisplayed
* - invalidate cached values
* "lnum" is the first line that needs displaying, "lnume" the first line
* below the changed lines (BEFORE the change).
* When only inserting lines, "lnum" and "lnume" are equal.
* Takes care of calling changed() and updating b_mod_*.
*/
void
changed_lines(lnum, col, lnume, xtra)
linenr_T lnum; /* first line with change */
colnr_T col; /* column in first line with change */
linenr_T lnume; /* line below last changed line */
long xtra; /* number of extra lines (negative when deleting) */
{
changed_lines_buf(curbuf, lnum, lnume, xtra);
#ifdef FEAT_DIFF
if (xtra == 0 && curwin->w_p_diff)
{
/* When the number of lines doesn't change then mark_adjust() isn't
* called and other diff buffers still need to be marked for
* displaying. */
win_T *wp;
linenr_T wlnum;
for (wp = firstwin; wp != NULL; wp = wp->w_next)
if (wp->w_p_diff && wp != curwin)
{
redraw_win_later(wp, VALID);
wlnum = diff_lnum_win(lnum, wp);
if (wlnum > 0)
changed_lines_buf(wp->w_buffer, wlnum,
lnume - lnum + wlnum, 0L);
}
}
#endif
changed_common(lnum, col, lnume, xtra);
}
static void
changed_lines_buf(buf, lnum, lnume, xtra)
buf_T *buf;
linenr_T lnum; /* first line with change */
linenr_T lnume; /* line below last changed line */
long xtra; /* number of extra lines (negative when deleting) */
{
if (buf->b_mod_set)
{
/* find the maximum area that must be redisplayed */
if (lnum < buf->b_mod_top)
buf->b_mod_top = lnum;
if (lnum < buf->b_mod_bot)
{
/* adjust old bot position for xtra lines */
buf->b_mod_bot += xtra;
if (buf->b_mod_bot < lnum)
buf->b_mod_bot = lnum;
}
if (lnume + xtra > buf->b_mod_bot)
buf->b_mod_bot = lnume + xtra;
buf->b_mod_xlines += xtra;
}
else
{
/* set the area that must be redisplayed */
buf->b_mod_set = TRUE;
buf->b_mod_top = lnum;
buf->b_mod_bot = lnume + xtra;
buf->b_mod_xlines = xtra;
}
}
static void
changed_common(lnum, col, lnume, xtra)
linenr_T lnum;
colnr_T col;
linenr_T lnume;
long xtra;
{
win_T *wp;
int i;
#ifdef FEAT_JUMPLIST
int cols;
pos_T *p;
int add;
#endif
/* mark the buffer as modified */
changed();
/* set the '. mark */
if (!cmdmod.keepjumps)
{
curbuf->b_last_change.lnum = lnum;
curbuf->b_last_change.col = col;
#ifdef FEAT_JUMPLIST
/* Create a new entry if a new undo-able change was started or we
* don't have an entry yet. */
if (curbuf->b_new_change || curbuf->b_changelistlen == 0)
{
if (curbuf->b_changelistlen == 0)
add = TRUE;
else
{
/* Don't create a new entry when the line number is the same
* as the last one and the column is not too far away. Avoids
* creating many entries for typing "xxxxx". */
p = &curbuf->b_changelist[curbuf->b_changelistlen - 1];
if (p->lnum != lnum)
add = TRUE;
else
{
cols = comp_textwidth(FALSE);
if (cols == 0)
cols = 79;
add = (p->col + cols < col || col + cols < p->col);
}
}
if (add)
{
/* This is the first of a new sequence of undo-able changes
* and it's at some distance of the last change. Use a new
* position in the changelist. */
curbuf->b_new_change = FALSE;
if (curbuf->b_changelistlen == JUMPLISTSIZE)
{
/* changelist is full: remove oldest entry */
curbuf->b_changelistlen = JUMPLISTSIZE - 1;
mch_memmove(curbuf->b_changelist, curbuf->b_changelist + 1,
sizeof(pos_T) * (JUMPLISTSIZE - 1));
FOR_ALL_WINDOWS(wp)
{
/* Correct position in changelist for other windows on
* this buffer. */
if (wp->w_buffer == curbuf && wp->w_changelistidx > 0)
--wp->w_changelistidx;
}
}
FOR_ALL_WINDOWS(wp)
{
/* For other windows, if the position in the changelist is
* at the end it stays at the end. */
if (wp->w_buffer == curbuf
&& wp->w_changelistidx == curbuf->b_changelistlen)
++wp->w_changelistidx;
}
++curbuf->b_changelistlen;
}
}
curbuf->b_changelist[curbuf->b_changelistlen - 1] =
curbuf->b_last_change;
/* The current window is always after the last change, so that "g,"
* takes you back to it. */
curwin->w_changelistidx = curbuf->b_changelistlen;
#endif
}
FOR_ALL_WINDOWS(wp)
{
if (wp->w_buffer == curbuf)
{
/* Mark this window to be redrawn later. */
if (wp->w_redr_type < VALID)
wp->w_redr_type = VALID;
/* Check if a change in the buffer has invalidated the cached
* values for the cursor. */
#ifdef FEAT_FOLDING
/*
* Update the folds for this window. Can't postpone this, because
* a following operator might work on the whole fold: ">>dd".
*/
foldUpdate(wp, lnum, lnume + xtra - 1);
/* The change may cause lines above or below the change to become
* included in a fold. Set lnum/lnume to the first/last line that
* might be displayed differently.
* Set w_cline_folded here as an efficient way to update it when
* inserting lines just above a closed fold. */
i = hasFoldingWin(wp, lnum, &lnum, NULL, FALSE, NULL);
if (wp->w_cursor.lnum == lnum)
wp->w_cline_folded = i;
i = hasFoldingWin(wp, lnume, NULL, &lnume, FALSE, NULL);
if (wp->w_cursor.lnum == lnume)
wp->w_cline_folded = i;
/* If the changed line is in a range of previously folded lines,
* compare with the first line in that range. */
if (wp->w_cursor.lnum <= lnum)
{
i = find_wl_entry(wp, lnum);
if (i >= 0 && wp->w_cursor.lnum > wp->w_lines[i].wl_lnum)
changed_line_abv_curs_win(wp);
}
#endif
if (wp->w_cursor.lnum > lnum)
changed_line_abv_curs_win(wp);
else if (wp->w_cursor.lnum == lnum && wp->w_cursor.col >= col)
changed_cline_bef_curs_win(wp);
if (wp->w_botline >= lnum)
{
/* Assume that botline doesn't change (inserted lines make
* other lines scroll down below botline). */
approximate_botline_win(wp);
}
/* Check if any w_lines[] entries have become invalid.
* For entries below the change: Correct the lnums for
* inserted/deleted lines. Makes it possible to stop displaying
* after the change. */
for (i = 0; i < wp->w_lines_valid; ++i)
if (wp->w_lines[i].wl_valid)
{
if (wp->w_lines[i].wl_lnum >= lnum)
{
if (wp->w_lines[i].wl_lnum < lnume)
{
/* line included in change */
wp->w_lines[i].wl_valid = FALSE;
}
else if (xtra != 0)
{
/* line below change */
wp->w_lines[i].wl_lnum += xtra;
#ifdef FEAT_FOLDING
wp->w_lines[i].wl_lastlnum += xtra;
#endif
}
}
#ifdef FEAT_FOLDING
else if (wp->w_lines[i].wl_lastlnum >= lnum)
{
/* change somewhere inside this range of folded lines,
* may need to be redrawn */
wp->w_lines[i].wl_valid = FALSE;
}
#endif
}
}
}
/* Call update_screen() later, which checks out what needs to be redrawn,
* since it notices b_mod_set and then uses b_mod_*. */
if (must_redraw < VALID)
must_redraw = VALID;
#ifdef FEAT_AUTOCMD
/* when the cursor line is changed always trigger CursorMoved */
if (lnum <= curwin->w_cursor.lnum
&& lnume + (xtra < 0 ? -xtra : xtra) > curwin->w_cursor.lnum)
last_cursormoved.lnum = 0;
#endif
}
/*
* unchanged() is called when the changed flag must be reset for buffer 'buf'
*/
void
unchanged(buf, ff)
buf_T *buf;
int ff; /* also reset 'fileformat' */
{
if (buf->b_changed || (ff && file_ff_differs(buf)))
{
buf->b_changed = 0;
ml_setflags(buf);
if (ff)
save_file_ff(buf);
#ifdef FEAT_WINDOWS
check_status(buf);
redraw_tabline = TRUE;
#endif
#ifdef FEAT_TITLE
need_maketitle = TRUE; /* set window title later */
#endif
}
++buf->b_changedtick;
#ifdef FEAT_NETBEANS_INTG
netbeans_unmodified(buf);
#endif
}
#if defined(FEAT_WINDOWS) || defined(PROTO)
/*
* check_status: called when the status bars for the buffer 'buf'
* need to be updated
*/
void
check_status(buf)
buf_T *buf;
{
win_T *wp;
for (wp = firstwin; wp != NULL; wp = wp->w_next)
if (wp->w_buffer == buf && wp->w_status_height)
{
wp->w_redr_status = TRUE;
if (must_redraw < VALID)
must_redraw = VALID;
}
}
#endif
/*
* If the file is readonly, give a warning message with the first change.
* Don't do this for autocommands.
* Don't use emsg(), because it flushes the macro buffer.
* If we have undone all changes b_changed will be FALSE, but "b_did_warn"
* will be TRUE.
*/
void
change_warning(col)
int col; /* column for message; non-zero when in insert
mode and 'showmode' is on */
{
if (curbuf->b_did_warn == FALSE
&& curbufIsChanged() == 0
#ifdef FEAT_AUTOCMD
&& !autocmd_busy
#endif
&& curbuf->b_p_ro)
{
#ifdef FEAT_AUTOCMD
++curbuf_lock;
apply_autocmds(EVENT_FILECHANGEDRO, NULL, NULL, FALSE, curbuf);
--curbuf_lock;
if (!curbuf->b_p_ro)
return;
#endif
/*
* Do what msg() does, but with a column offset if the warning should
* be after the mode message.
*/
msg_start();
if (msg_row == Rows - 1)
msg_col = col;
msg_source(hl_attr(HLF_W));
MSG_PUTS_ATTR(_("W10: Warning: Changing a readonly file"),
hl_attr(HLF_W) | MSG_HIST);
msg_clr_eos();
(void)msg_end();
if (msg_silent == 0 && !silent_mode)
{
out_flush();
ui_delay(1000L, TRUE); /* give the user time to think about it */
}
curbuf->b_did_warn = TRUE;
redraw_cmdline = FALSE; /* don't redraw and erase the message */
if (msg_row < Rows - 1)
showmode();
}
}
/*
* Ask for a reply from the user, a 'y' or a 'n'.
* No other characters are accepted, the message is repeated until a valid
* reply is entered or CTRL-C is hit.
* If direct is TRUE, don't use vgetc() but ui_inchar(), don't get characters
* from any buffers but directly from the user.
*
* return the 'y' or 'n'
*/
int
ask_yesno(str, direct)
char_u *str;
int direct;
{
int r = ' ';
int save_State = State;
if (exiting) /* put terminal in raw mode for this question */
settmode(TMODE_RAW);
++no_wait_return;
#ifdef USE_ON_FLY_SCROLL
dont_scroll = TRUE; /* disallow scrolling here */
#endif
State = CONFIRM; /* mouse behaves like with :confirm */
#ifdef FEAT_MOUSE
setmouse(); /* disables mouse for xterm */
#endif
++no_mapping;
++allow_keys; /* no mapping here, but recognize keys */
while (r != 'y' && r != 'n')
{
/* same highlighting as for wait_return */
smsg_attr(hl_attr(HLF_R), (char_u *)"%s (y/n)?", str);
if (direct)
r = get_keystroke();
else
r = safe_vgetc();
if (r == Ctrl_C || r == ESC)
r = 'n';
msg_putchar(r); /* show what you typed */
out_flush();
}
--no_wait_return;
State = save_State;
#ifdef FEAT_MOUSE
setmouse();
#endif
--no_mapping;
--allow_keys;
return r;
}
/*
* Get a key stroke directly from the user.
* Ignores mouse clicks and scrollbar events, except a click for the left
* button (used at the more prompt).
* Doesn't use vgetc(), because it syncs undo and eats mapped characters.
* Disadvantage: typeahead is ignored.
* Translates the interrupt character for unix to ESC.
*/
int
get_keystroke()
{
#define CBUFLEN 151
char_u buf[CBUFLEN];
int len = 0;
int n;
int save_mapped_ctrl_c = mapped_ctrl_c;
int waited = 0;
mapped_ctrl_c = FALSE; /* mappings are not used here */
for (;;)
{
cursor_on();
out_flush();
/* First time: blocking wait. Second time: wait up to 100ms for a
* terminal code to complete. Leave some room for check_termcode() to
* insert a key code into (max 5 chars plus NUL). And
* fix_input_buffer() can triple the number of bytes. */
n = ui_inchar(buf + len, (CBUFLEN - 6 - len) / 3,
len == 0 ? -1L : 100L, 0);
if (n > 0)
{
/* Replace zero and CSI by a special key code. */
n = fix_input_buffer(buf + len, n, FALSE);
len += n;
waited = 0;
}
else if (len > 0)
++waited; /* keep track of the waiting time */
/* Incomplete termcode and not timed out yet: get more characters */
if ((n = check_termcode(1, buf, len)) < 0
&& (!p_ttimeout || waited * 100L < (p_ttm < 0 ? p_tm : p_ttm)))
continue;
/* found a termcode: adjust length */
if (n > 0)
len = n;
if (len == 0) /* nothing typed yet */
continue;
/* Handle modifier and/or special key code. */
n = buf[0];
if (n == K_SPECIAL)
{
n = TO_SPECIAL(buf[1], buf[2]);
if (buf[1] == KS_MODIFIER
|| n == K_IGNORE
#ifdef FEAT_MOUSE
|| n == K_LEFTMOUSE_NM
|| n == K_LEFTDRAG
|| n == K_LEFTRELEASE
|| n == K_LEFTRELEASE_NM
|| n == K_MIDDLEMOUSE
|| n == K_MIDDLEDRAG
|| n == K_MIDDLERELEASE
|| n == K_RIGHTMOUSE
|| n == K_RIGHTDRAG
|| n == K_RIGHTRELEASE
|| n == K_MOUSEDOWN
|| n == K_MOUSEUP
|| n == K_X1MOUSE
|| n == K_X1DRAG
|| n == K_X1RELEASE
|| n == K_X2MOUSE
|| n == K_X2DRAG
|| n == K_X2RELEASE
# ifdef FEAT_GUI
|| n == K_VER_SCROLLBAR
|| n == K_HOR_SCROLLBAR
# endif
#endif
)
{
if (buf[1] == KS_MODIFIER)
mod_mask = buf[2];
len -= 3;
if (len > 0)
mch_memmove(buf, buf + 3, (size_t)len);
continue;
}
break;
}
#ifdef FEAT_MBYTE
if (has_mbyte)
{
if (MB_BYTE2LEN(n) > len)
continue; /* more bytes to get */
buf[len >= CBUFLEN ? CBUFLEN - 1 : len] = NUL;
n = (*mb_ptr2char)(buf);
}
#endif
#ifdef UNIX
if (n == intr_char)
n = ESC;
#endif
break;
}
mapped_ctrl_c = save_mapped_ctrl_c;
return n;
}
/*
* Get a number from the user.
* When "mouse_used" is not NULL allow using the mouse.
*/
int
get_number(colon, mouse_used)
int colon; /* allow colon to abort */
int *mouse_used;
{
int n = 0;
int c;
int typed = 0;
if (mouse_used != NULL)
*mouse_used = FALSE;
/* When not printing messages, the user won't know what to type, return a
* zero (as if CR was hit). */
if (msg_silent != 0)
return 0;
#ifdef USE_ON_FLY_SCROLL
dont_scroll = TRUE; /* disallow scrolling here */
#endif
++no_mapping;
++allow_keys; /* no mapping here, but recognize keys */
for (;;)
{
windgoto(msg_row, msg_col);
c = safe_vgetc();
if (VIM_ISDIGIT(c))
{
n = n * 10 + c - '0';
msg_putchar(c);
++typed;
}
else if (c == K_DEL || c == K_KDEL || c == K_BS || c == Ctrl_H)
{
if (typed > 0)
{
MSG_PUTS("\b \b");
--typed;
}
n /= 10;
}
#ifdef FEAT_MOUSE
else if (mouse_used != NULL && c == K_LEFTMOUSE)
{
*mouse_used = TRUE;
n = mouse_row + 1;
break;
}
#endif
else if (n == 0 && c == ':' && colon)
{
stuffcharReadbuff(':');
if (!exmode_active)
cmdline_row = msg_row;
skip_redraw = TRUE; /* skip redraw once */
do_redraw = FALSE;
break;
}
else if (c == CAR || c == NL || c == Ctrl_C || c == ESC)
break;
}
--no_mapping;
--allow_keys;
return n;
}
/*
* Ask the user to enter a number.
* When "mouse_used" is not NULL allow using the mouse and in that case return
* the line number.
*/
int
prompt_for_number(mouse_used)
int *mouse_used;
{
int i;
int save_cmdline_row;
int save_State;
/* When using ":silent" assume that <CR> was entered. */
if (mouse_used != NULL)
MSG_PUTS(_("Type number or click with mouse (<Enter> cancels): "));
else
MSG_PUTS(_("Choice number (<Enter> cancels): "));
/* Set the state such that text can be selected/copied/pasted and we still
* get mouse events. */
save_cmdline_row = cmdline_row;
cmdline_row = 0;
save_State = State;
State = CMDLINE;
i = get_number(TRUE, mouse_used);
if (KeyTyped)
{
/* don't call wait_return() now */
/* msg_putchar('\n'); */
cmdline_row = msg_row - 1;
need_wait_return = FALSE;
msg_didany = FALSE;
}
else
cmdline_row = save_cmdline_row;
State = save_State;
return i;
}
void
msgmore(n)
long n;
{
long pn;
if (global_busy /* no messages now, wait until global is finished */
|| !messaging()) /* 'lazyredraw' set, don't do messages now */
return;
/* We don't want to overwrite another important message, but do overwrite
* a previous "more lines" or "fewer lines" message, so that "5dd" and
* then "put" reports the last action. */
if (keep_msg != NULL && !keep_msg_more)
return;
if (n > 0)
pn = n;
else
pn = -n;
if (pn > p_report)
{
if (pn == 1)
{
if (n > 0)
STRCPY(msg_buf, _("1 more line"));
else
STRCPY(msg_buf, _("1 line less"));
}
else
{
if (n > 0)
sprintf((char *)msg_buf, _("%ld more lines"), pn);
else
sprintf((char *)msg_buf, _("%ld fewer lines"), pn);
}
if (got_int)
STRCAT(msg_buf, _(" (Interrupted)"));
if (msg(msg_buf))
{
set_keep_msg(msg_buf, 0);
keep_msg_more = TRUE;
}
}
}
/*
* flush map and typeahead buffers and give a warning for an error
*/
void
beep_flush()
{
if (emsg_silent == 0)
{
flush_buffers(FALSE);
vim_beep();
}
}
/*
* give a warning for an error
*/
void
vim_beep()
{
if (emsg_silent == 0)
{
if (p_vb
#ifdef FEAT_GUI
/* While the GUI is starting up the termcap is set for the GUI
* but the output still goes to a terminal. */
&& !(gui.in_use && gui.starting)
#endif
)
{
out_str(T_VB);
}
else
{
#ifdef MSDOS
/*
* The number of beeps outputted is reduced to avoid having to wait
* for all the beeps to finish. This is only a problem on systems
* where the beeps don't overlap.
*/
if (beep_count == 0 || beep_count == 10)
{
out_char(BELL);
beep_count = 1;
}
else
++beep_count;
#else
out_char(BELL);
#endif
}
/* When 'verbose' is set and we are sourcing a script or executing a
* function give the user a hint where the beep comes from. */
if (vim_strchr(p_debug, 'e') != NULL)
{
msg_source(hl_attr(HLF_W));
msg_attr((char_u *)_("Beep!"), hl_attr(HLF_W));
}
}
}
/*
* To get the "real" home directory:
* - get value of $HOME
* For Unix:
* - go to that directory
* - do mch_dirname() to get the real name of that directory.
* This also works with mounts and links.
* Don't do this for MS-DOS, it will change the "current dir" for a drive.
*/
static char_u *homedir = NULL;
void
init_homedir()
{
char_u *var;
/* In case we are called a second time (when 'encoding' changes). */
vim_free(homedir);
homedir = NULL;
#if defined(VMS)
var = mch_getenv((char_u *)"SYS$LOGIN");
#elif defined(PLAN9)
var = mch_getenv((char_u *)"home");
#else
var = mch_getenv((char_u *)"HOME");
#endif
if (var != NULL && *var == NUL) /* empty is same as not set */
var = NULL;
#ifdef WIN3264
/*
* Weird but true: $HOME may contain an indirect reference to another
* variable, esp. "%USERPROFILE%". Happens when $USERPROFILE isn't set
* when $HOME is being set.
*/
if (var != NULL && *var == '%')
{
char_u *p;
char_u *exp;
p = vim_strchr(var + 1, '%');
if (p != NULL)
{
vim_strncpy(NameBuff, var + 1, p - (var + 1));
exp = mch_getenv(NameBuff);
if (exp != NULL && *exp != NUL
&& STRLEN(exp) + STRLEN(p) < MAXPATHL)
{
vim_snprintf((char *)NameBuff, MAXPATHL, "%s%s", exp, p + 1);
var = NameBuff;
/* Also set $HOME, it's needed for _viminfo. */
vim_setenv((char_u *)"HOME", NameBuff);
}
}
}
/*
* Typically, $HOME is not defined on Windows, unless the user has
* specifically defined it for Vim's sake. However, on Windows NT
* platforms, $HOMEDRIVE and $HOMEPATH are automatically defined for
* each user. Try constructing $HOME from these.
*/
if (var == NULL)
{
char_u *homedrive, *homepath;
homedrive = mch_getenv((char_u *)"HOMEDRIVE");
homepath = mch_getenv((char_u *)"HOMEPATH");
if (homedrive != NULL && homepath != NULL
&& STRLEN(homedrive) + STRLEN(homepath) < MAXPATHL)
{
sprintf((char *)NameBuff, "%s%s", homedrive, homepath);
if (NameBuff[0] != NUL)
{
var = NameBuff;
/* Also set $HOME, it's needed for _viminfo. */
vim_setenv((char_u *)"HOME", NameBuff);
}
}
}
# if defined(FEAT_MBYTE)
if (enc_utf8 && var != NULL)
{
int len;
char_u *pp;
/* Convert from active codepage to UTF-8. Other conversions are
* not done, because they would fail for non-ASCII characters. */
acp_to_enc(var, (int)STRLEN(var), &pp, &len);
if (pp != NULL)
{
homedir = pp;
return;
}
}
# endif
#endif
#if defined(OS2) || defined(MSDOS) || defined(MSWIN)
/*
* Default home dir is C:/
* Best assumption we can make in such a situation.
*/
if (var == NULL)
var = "C:/";
#endif
if (var != NULL)
{
#ifdef UNIX
/*
* Change to the directory and get the actual path. This resolves
* links. Don't do it when we can't return.
*/
if (mch_dirname(NameBuff, MAXPATHL) == OK
&& mch_chdir((char *)NameBuff) == 0)
{
if (!mch_chdir((char *)var) && mch_dirname(IObuff, IOSIZE) == OK)
var = IObuff;
if (mch_chdir((char *)NameBuff) != 0)
EMSG(_(e_prev_dir));
}
#endif
homedir = vim_strsave(var);
}
}
#if defined(EXITFREE) || defined(PROTO)
void
free_homedir()
{
vim_free(homedir);
}
#endif
/*
* Expand environment variable with path name.
* "~/" is also expanded, using $HOME. For Unix "~user/" is expanded.
* Skips over "\ ", "\~" and "\$".
* If anything fails no expansion is done and dst equals src.
*/
void
expand_env(src, dst, dstlen)
char_u *src; /* input string e.g. "$HOME/vim.hlp" */
char_u *dst; /* where to put the result */
int dstlen; /* maximum length of the result */
{
expand_env_esc(src, dst, dstlen, FALSE, NULL);
}
void
expand_env_esc(srcp, dst, dstlen, esc, startstr)
char_u *srcp; /* input string e.g. "$HOME/vim.hlp" */
char_u *dst; /* where to put the result */
int dstlen; /* maximum length of the result */
int esc; /* escape spaces in expanded variables */
char_u *startstr; /* start again after this (can be NULL) */
{
char_u *src;
char_u *tail;
int c;
char_u *var;
int copy_char;
int mustfree; /* var was allocated, need to free it later */
int at_start = TRUE; /* at start of a name */
int startstr_len = 0;
if (startstr != NULL)
startstr_len = (int)STRLEN(startstr);
src = skipwhite(srcp);
--dstlen; /* leave one char space for "\," */
while (*src && dstlen > 0)
{
copy_char = TRUE;
if ((*src == '$'
#ifdef VMS
&& at_start
#endif
)
#if defined(MSDOS) || defined(MSWIN) || defined(OS2)
|| *src == '%'
#endif
|| (*src == '~' && at_start))
{
mustfree = FALSE;
/*
* The variable name is copied into dst temporarily, because it may
* be a string in read-only memory and a NUL needs to be appended.
*/
if (*src != '~') /* environment var */
{
tail = src + 1;
var = dst;
c = dstlen - 1;
#ifdef UNIX
/* Unix has ${var-name} type environment vars */
if (*tail == '{' && !vim_isIDc('{'))
{
tail++; /* ignore '{' */
while (c-- > 0 && *tail && *tail != '}')
*var++ = *tail++;
}
else
#endif
{
while (c-- > 0 && *tail != NUL && ((vim_isIDc(*tail))
#if defined(MSDOS) || defined(MSWIN) || defined(OS2)
|| (*src == '%' && *tail != '%')
#endif
))
{
#ifdef OS2 /* env vars only in uppercase */
*var++ = TOUPPER_LOC(*tail);
tail++; /* toupper() may be a macro! */
#else
*var++ = *tail++;
#endif
}
}
#if defined(MSDOS) || defined(MSWIN) || defined(OS2) || defined(UNIX)
# ifdef UNIX
if (src[1] == '{' && *tail != '}')
# else
if (*src == '%' && *tail != '%')
# endif
var = NULL;
else
{
# ifdef UNIX
if (src[1] == '{')
# else
if (*src == '%')
#endif
++tail;
#endif
*var = NUL;
var = vim_getenv(dst, &mustfree);
#if defined(MSDOS) || defined(MSWIN) || defined(OS2) || defined(UNIX)
}
#endif
}
/* home directory */
else if ( src[1] == NUL
|| vim_ispathsep(src[1])
|| vim_strchr((char_u *)" ,\t\n", src[1]) != NULL)
{
var = homedir;
tail = src + 1;
}
else /* user directory */
{
#if defined(UNIX) || (defined(VMS) && defined(USER_HOME))
/*
* Copy ~user to dst[], so we can put a NUL after it.
*/
tail = src;
var = dst;
c = dstlen - 1;
while ( c-- > 0
&& *tail
&& vim_isfilec(*tail)
&& !vim_ispathsep(*tail))
*var++ = *tail++;
*var = NUL;
# ifdef UNIX
/*
* If the system supports getpwnam(), use it.
* Otherwise, or if getpwnam() fails, the shell is used to
* expand ~user. This is slower and may fail if the shell
* does not support ~user (old versions of /bin/sh).
*/
# if defined(HAVE_GETPWNAM) && defined(HAVE_PWD_H)
{
struct passwd *pw;
/* Note: memory allocated by getpwnam() is never freed.
* Calling endpwent() apparently doesn't help. */
pw = getpwnam((char *)dst + 1);
if (pw != NULL)
var = (char_u *)pw->pw_dir;
else
var = NULL;
}
if (var == NULL)
# endif
{
expand_T xpc;
ExpandInit(&xpc);
xpc.xp_context = EXPAND_FILES;
var = ExpandOne(&xpc, dst, NULL,
WILD_ADD_SLASH|WILD_SILENT, WILD_EXPAND_FREE);
mustfree = TRUE;
}
# else /* !UNIX, thus VMS */
/*
* USER_HOME is a comma-separated list of
* directories to search for the user account in.
*/
{
char_u test[MAXPATHL], paths[MAXPATHL];
char_u *path, *next_path, *ptr;
struct stat st;
STRCPY(paths, USER_HOME);
next_path = paths;
while (*next_path)
{
for (path = next_path; *next_path && *next_path != ',';
next_path++);
if (*next_path)
*next_path++ = NUL;
STRCPY(test, path);
STRCAT(test, "/");
STRCAT(test, dst + 1);
if (mch_stat(test, &st) == 0)
{
var = alloc(STRLEN(test) + 1);
STRCPY(var, test);
mustfree = TRUE;
break;
}
}
}
# endif /* UNIX */
#else
/* cannot expand user's home directory, so don't try */
var = NULL;
tail = (char_u *)""; /* for gcc */
#endif /* UNIX || VMS */
}
#ifdef BACKSLASH_IN_FILENAME
/* If 'shellslash' is set change backslashes to forward slashes.
* Can't use slash_adjust(), p_ssl may be set temporarily. */
if (p_ssl && var != NULL && vim_strchr(var, '\\') != NULL)
{
char_u *p = vim_strsave(var);
if (p != NULL)
{
if (mustfree)
vim_free(var);
var = p;
mustfree = TRUE;
forward_slash(var);
}
}
#endif
/* If "var" contains white space, escape it with a backslash.
* Required for ":e ~/tt" when $HOME includes a space. */
if (esc && var != NULL && vim_strpbrk(var, (char_u *)" \t") != NULL)
{
char_u *p = vim_strsave_escaped(var, (char_u *)" \t");
if (p != NULL)
{
if (mustfree)
vim_free(var);
var = p;
mustfree = TRUE;
}
}
if (var != NULL && *var != NUL
&& (STRLEN(var) + STRLEN(tail) + 1 < (unsigned)dstlen))
{
STRCPY(dst, var);
dstlen -= (int)STRLEN(var);
c = (int)STRLEN(var);
/* if var[] ends in a path separator and tail[] starts
* with it, skip a character */
if (*var != NUL && after_pathsep(dst, dst + c)
#if defined(BACKSLASH_IN_FILENAME) || defined(AMIGA)
&& dst[-1] != ':'
#endif
&& vim_ispathsep(*tail))
++tail;
dst += c;
src = tail;
copy_char = FALSE;
}
if (mustfree)
vim_free(var);
}
if (copy_char) /* copy at least one char */
{
/*
* Recognize the start of a new name, for '~'.
*/
at_start = FALSE;
if (src[0] == '\\' && src[1] != NUL)
{
*dst++ = *src++;
--dstlen;
}
else if (src[0] == ' ' || src[0] == ',')
at_start = TRUE;
*dst++ = *src++;
--dstlen;
if (startstr != NULL && src - startstr_len >= srcp
&& STRNCMP(src - startstr_len, startstr, startstr_len) == 0)
at_start = TRUE;
}
}
*dst = NUL;
}
/*
* Vim's version of getenv().
* Special handling of $HOME, $VIM and $VIMRUNTIME.
* Also does ACP to 'enc' conversion for Win32.
*/
char_u *
vim_getenv(name, mustfree)
char_u *name;
int *mustfree; /* set to TRUE when returned is allocated */
{
char_u *p;
char_u *pend;
int vimruntime;
#if defined(OS2) || defined(MSDOS) || defined(MSWIN)
/* use "C:/" when $HOME is not set */
if (STRCMP(name, "HOME") == 0)
return homedir;
#endif
p = mch_getenv(name);
if (p != NULL && *p == NUL) /* empty is the same as not set */
p = NULL;
if (p != NULL)
{
#if defined(FEAT_MBYTE) && defined(WIN3264)
if (enc_utf8)
{
int len;
char_u *pp;
/* Convert from active codepage to UTF-8. Other conversions are
* not done, because they would fail for non-ASCII characters. */
acp_to_enc(p, (int)STRLEN(p), &pp, &len);
if (pp != NULL)
{
p = pp;
*mustfree = TRUE;
}
}
#endif
return p;
}
vimruntime = (STRCMP(name, "VIMRUNTIME") == 0);
if (!vimruntime && STRCMP(name, "VIM") != 0)
return NULL;
/*
* When expanding $VIMRUNTIME fails, try using $VIM/vim<version> or $VIM.
* Don't do this when default_vimruntime_dir is non-empty.
*/
if (vimruntime
#ifdef HAVE_PATHDEF
&& *default_vimruntime_dir == NUL
#endif
)
{
p = mch_getenv((char_u *)"VIM");
if (p != NULL && *p == NUL) /* empty is the same as not set */
p = NULL;
if (p != NULL)
{
p = vim_version_dir(p);
if (p != NULL)
*mustfree = TRUE;
else
p = mch_getenv((char_u *)"VIM");
#if defined(FEAT_MBYTE) && defined(WIN3264)
if (enc_utf8)
{
int len;
char_u *pp;
/* Convert from active codepage to UTF-8. Other conversions
* are not done, because they would fail for non-ASCII
* characters. */
acp_to_enc(p, (int)STRLEN(p), &pp, &len);
if (pp != NULL)
{
if (mustfree)
vim_free(p);
p = pp;
*mustfree = TRUE;
}
}
#endif
}
}
/*
* When expanding $VIM or $VIMRUNTIME fails, try using:
* - the directory name from 'helpfile' (unless it contains '$')
* - the executable name from argv[0]
*/
if (p == NULL)
{
if (p_hf != NULL && vim_strchr(p_hf, '$') == NULL)
p = p_hf;
#ifdef USE_EXE_NAME
/*
* Use the name of the executable, obtained from argv[0].
*/
else
p = exe_name;
#endif
if (p != NULL)
{
/* remove the file name */
pend = gettail(p);
/* remove "doc/" from 'helpfile', if present */
if (p == p_hf)
pend = remove_tail(p, pend, (char_u *)"doc");
#ifdef USE_EXE_NAME
# ifdef MACOS_X
/* remove "MacOS" from exe_name and add "Resources/vim" */
if (p == exe_name)
{
char_u *pend1;
char_u *pnew;
pend1 = remove_tail(p, pend, (char_u *)"MacOS");
if (pend1 != pend)
{
pnew = alloc((unsigned)(pend1 - p) + 15);
if (pnew != NULL)
{
STRNCPY(pnew, p, (pend1 - p));
STRCPY(pnew + (pend1 - p), "Resources/vim");
p = pnew;
pend = p + STRLEN(p);
}
}
}
# endif
/* remove "src/" from exe_name, if present */
if (p == exe_name)
pend = remove_tail(p, pend, (char_u *)"src");
#endif
/* for $VIM, remove "runtime/" or "vim54/", if present */
if (!vimruntime)
{
pend = remove_tail(p, pend, (char_u *)RUNTIME_DIRNAME);
pend = remove_tail(p, pend, (char_u *)VIM_VERSION_NODOT);
}
/* remove trailing path separator */
#ifndef MACOS_CLASSIC
/* With MacOS path (with colons) the final colon is required */
/* to avoid confusion between absoulute and relative path */
if (pend > p && after_pathsep(p, pend))
--pend;
#endif
#ifdef MACOS_X
if (p == exe_name || p == p_hf)
#endif
/* check that the result is a directory name */
p = vim_strnsave(p, (int)(pend - p));
if (p != NULL && !mch_isdir(p))
{
vim_free(p);
p = NULL;
}
else
{
#ifdef USE_EXE_NAME
/* may add "/vim54" or "/runtime" if it exists */
if (vimruntime && (pend = vim_version_dir(p)) != NULL)
{
vim_free(p);
p = pend;
}
#endif
*mustfree = TRUE;
}
}
}
#ifdef HAVE_PATHDEF
/* When there is a pathdef.c file we can use default_vim_dir and
* default_vimruntime_dir */
if (p == NULL)
{
/* Only use default_vimruntime_dir when it is not empty */
if (vimruntime && *default_vimruntime_dir != NUL)
{
p = default_vimruntime_dir;
*mustfree = FALSE;
}
else if (*default_vim_dir != NUL)
{
if (vimruntime && (p = vim_version_dir(default_vim_dir)) != NULL)
*mustfree = TRUE;
else
{
p = default_vim_dir;
*mustfree = FALSE;
}
}
}
#endif
/*
* Set the environment variable, so that the new value can be found fast
* next time, and others can also use it (e.g. Perl).
*/
if (p != NULL)
{
if (vimruntime)
{
vim_setenv((char_u *)"VIMRUNTIME", p);
didset_vimruntime = TRUE;
#ifdef FEAT_GETTEXT
{
char_u *buf = concat_str(p, (char_u *)"/lang");
if (buf != NULL)
{
bindtextdomain(VIMPACKAGE, (char *)buf);
vim_free(buf);
}
}
#endif
}
else
{
vim_setenv((char_u *)"VIM", p);
didset_vim = TRUE;
}
}
return p;
}
/*
* Check if the directory "vimdir/<version>" or "vimdir/runtime" exists.
* Return NULL if not, return its name in allocated memory otherwise.
*/
static char_u *
vim_version_dir(vimdir)
char_u *vimdir;
{
char_u *p;
if (vimdir == NULL || *vimdir == NUL)
return NULL;
p = concat_fnames(vimdir, (char_u *)VIM_VERSION_NODOT, TRUE);
if (p != NULL && mch_isdir(p))
return p;
vim_free(p);
p = concat_fnames(vimdir, (char_u *)RUNTIME_DIRNAME, TRUE);
if (p != NULL && mch_isdir(p))
return p;
vim_free(p);
return NULL;
}
/*
* If the string between "p" and "pend" ends in "name/", return "pend" minus
* the length of "name/". Otherwise return "pend".
*/
static char_u *
remove_tail(p, pend, name)
char_u *p;
char_u *pend;
char_u *name;
{
int len = (int)STRLEN(name) + 1;
char_u *newend = pend - len;
if (newend >= p
&& fnamencmp(newend, name, len - 1) == 0
&& (newend == p || after_pathsep(p, newend)))
return newend;
return pend;
}
/*
* Call expand_env() and store the result in an allocated string.
* This is not very memory efficient, this expects the result to be freed
* again soon.
*/
char_u *
expand_env_save(src)
char_u *src;
{
char_u *p;
p = alloc(MAXPATHL);
if (p != NULL)
expand_env(src, p, MAXPATHL);
return p;
}
/*
* Our portable version of setenv.
*/
void
vim_setenv(name, val)
char_u *name;
char_u *val;
{
#ifdef HAVE_SETENV
mch_setenv((char *)name, (char *)val, 1);
#else
char_u *envbuf;
/*
* Putenv does not copy the string, it has to remain
* valid. The allocated memory will never be freed.
*/
envbuf = alloc((unsigned)(STRLEN(name) + STRLEN(val) + 2));
if (envbuf != NULL)
{
sprintf((char *)envbuf, "%s=%s", name, val);
putenv((char *)envbuf);
}
#endif
}
#if defined(FEAT_CMDL_COMPL) || defined(PROTO)
/*
* Function given to ExpandGeneric() to obtain an environment variable name.
*/
/*ARGSUSED*/
char_u *
get_env_name(xp, idx)
expand_T *xp;
int idx;
{
# if defined(AMIGA) || defined(__MRC__) || defined(__SC__)
/*
* No environ[] on the Amiga and on the Mac (using MPW).
*/
return NULL;
# else
# ifndef __WIN32__
/* Borland C++ 5.2 has this in a header file. */
extern char **environ;
# endif
# define ENVNAMELEN 100
static char_u name[ENVNAMELEN];
char_u *str;
int n;
str = (char_u *)environ[idx];
if (str == NULL)
return NULL;
for (n = 0; n < ENVNAMELEN - 1; ++n)
{
if (str[n] == '=' || str[n] == NUL)
break;
name[n] = str[n];
}
name[n] = NUL;
return name;
# endif
}
#endif
/*
* Replace home directory by "~" in each space or comma separated file name in
* 'src'.
* If anything fails (except when out of space) dst equals src.
*/
void
home_replace(buf, src, dst, dstlen, one)
buf_T *buf; /* when not NULL, check for help files */
char_u *src; /* input file name */
char_u *dst; /* where to put the result */
int dstlen; /* maximum length of the result */
int one; /* if TRUE, only replace one file name, include
spaces and commas in the file name. */
{
size_t dirlen = 0, envlen = 0;
size_t len;
char_u *homedir_env;
char_u *p;
if (src == NULL)
{
*dst = NUL;
return;
}
/*
* If the file is a help file, remove the path completely.
*/
if (buf != NULL && buf->b_help)
{
STRCPY(dst, gettail(src));
return;
}
/*
* We check both the value of the $HOME environment variable and the
* "real" home directory.
*/
if (homedir != NULL)
dirlen = STRLEN(homedir);
#ifdef VMS
homedir_env = mch_getenv((char_u *)"SYS$LOGIN");
#else
homedir_env = mch_getenv((char_u *)"HOME");
#endif
if (homedir_env != NULL && *homedir_env == NUL)
homedir_env = NULL;
if (homedir_env != NULL)
envlen = STRLEN(homedir_env);
if (!one)
src = skipwhite(src);
while (*src && dstlen > 0)
{
/*
* Here we are at the beginning of a file name.
* First, check to see if the beginning of the file name matches
* $HOME or the "real" home directory. Check that there is a '/'
* after the match (so that if e.g. the file is "/home/pieter/bla",
* and the home directory is "/home/piet", the file does not end up
* as "~er/bla" (which would seem to indicate the file "bla" in user
* er's home directory)).
*/
p = homedir;
len = dirlen;
for (;;)
{
if ( len
&& fnamencmp(src, p, len) == 0
&& (vim_ispathsep(src[len])
|| (!one && (src[len] == ',' || src[len] == ' '))
|| src[len] == NUL))
{
src += len;
if (--dstlen > 0)
*dst++ = '~';
/*
* If it's just the home directory, add "/".
*/
if (!vim_ispathsep(src[0]) && --dstlen > 0)
*dst++ = '/';
break;
}
if (p == homedir_env)
break;
p = homedir_env;
len = envlen;
}
/* if (!one) skip to separator: space or comma */
while (*src && (one || (*src != ',' && *src != ' ')) && --dstlen > 0)
*dst++ = *src++;
/* skip separator */
while ((*src == ' ' || *src == ',') && --dstlen > 0)
*dst++ = *src++;
}
/* if (dstlen == 0) out of space, what to do??? */
*dst = NUL;
}
/*
* Like home_replace, store the replaced string in allocated memory.
* When something fails, NULL is returned.
*/
char_u *
home_replace_save(buf, src)
buf_T *buf; /* when not NULL, check for help files */
char_u *src; /* input file name */
{
char_u *dst;
unsigned len;
len = 3; /* space for "~/" and trailing NUL */
if (src != NULL) /* just in case */
len += (unsigned)STRLEN(src);
dst = alloc(len);
if (dst != NULL)
home_replace(buf, src, dst, len, TRUE);
return dst;
}
/*
* Compare two file names and return:
* FPC_SAME if they both exist and are the same file.
* FPC_SAMEX if they both don't exist and have the same file name.
* FPC_DIFF if they both exist and are different files.
* FPC_NOTX if they both don't exist.
* FPC_DIFFX if one of them doesn't exist.
* For the first name environment variables are expanded
*/
int
fullpathcmp(s1, s2, checkname)
char_u *s1, *s2;
int checkname; /* when both don't exist, check file names */
{
#ifdef UNIX
char_u exp1[MAXPATHL];
char_u full1[MAXPATHL];
char_u full2[MAXPATHL];
struct stat st1, st2;
int r1, r2;
expand_env(s1, exp1, MAXPATHL);
r1 = mch_stat((char *)exp1, &st1);
r2 = mch_stat((char *)s2, &st2);
if (r1 != 0 && r2 != 0)
{
/* if mch_stat() doesn't work, may compare the names */
if (checkname)
{
if (fnamecmp(exp1, s2) == 0)
return FPC_SAMEX;
r1 = vim_FullName(exp1, full1, MAXPATHL, FALSE);
r2 = vim_FullName(s2, full2, MAXPATHL, FALSE);
if (r1 == OK && r2 == OK && fnamecmp(full1, full2) == 0)
return FPC_SAMEX;
}
return FPC_NOTX;
}
if (r1 != 0 || r2 != 0)
return FPC_DIFFX;
if (st1.st_dev == st2.st_dev && st1.st_ino == st2.st_ino)
return FPC_SAME;
return FPC_DIFF;
#else
char_u *exp1; /* expanded s1 */
char_u *full1; /* full path of s1 */
char_u *full2; /* full path of s2 */
int retval = FPC_DIFF;
int r1, r2;
/* allocate one buffer to store three paths (alloc()/free() is slow!) */
if ((exp1 = alloc(MAXPATHL * 3)) != NULL)
{
full1 = exp1 + MAXPATHL;
full2 = full1 + MAXPATHL;
expand_env(s1, exp1, MAXPATHL);
r1 = vim_FullName(exp1, full1, MAXPATHL, FALSE);
r2 = vim_FullName(s2, full2, MAXPATHL, FALSE);
/* If vim_FullName() fails, the file probably doesn't exist. */
if (r1 != OK && r2 != OK)
{
if (checkname && fnamecmp(exp1, s2) == 0)
retval = FPC_SAMEX;
else
retval = FPC_NOTX;
}
else if (r1 != OK || r2 != OK)
retval = FPC_DIFFX;
else if (fnamecmp(full1, full2))
retval = FPC_DIFF;
else
retval = FPC_SAME;
vim_free(exp1);
}
return retval;
#endif
}
/*
* Get the tail of a path: the file name.
* Fail safe: never returns NULL.
*/
char_u *
gettail(fname)
char_u *fname;
{
char_u *p1, *p2;
if (fname == NULL)
return (char_u *)"";
for (p1 = p2 = fname; *p2; ) /* find last part of path */
{
if (vim_ispathsep(*p2))
p1 = p2 + 1;
mb_ptr_adv(p2);
}
return p1;
}
/*
* Get pointer to tail of "fname", including path separators. Putting a NUL
* here leaves the directory name. Takes care of "c:/" and "//".
* Always returns a valid pointer.
*/
char_u *
gettail_sep(fname)
char_u *fname;
{
char_u *p;
char_u *t;
p = get_past_head(fname); /* don't remove the '/' from "c:/file" */
t = gettail(fname);
while (t > p && after_pathsep(fname, t))
--t;
#ifdef VMS
/* path separator is part of the path */
++t;
#endif
return t;
}
/*
* get the next path component (just after the next path separator).
*/
char_u *
getnextcomp(fname)
char_u *fname;
{
while (*fname && !vim_ispathsep(*fname))
mb_ptr_adv(fname);
if (*fname)
++fname;
return fname;
}
/*
* Get a pointer to one character past the head of a path name.
* Unix: after "/"; DOS: after "c:\"; Amiga: after "disk:/"; Mac: no head.
* If there is no head, path is returned.
*/
char_u *
get_past_head(path)
char_u *path;
{
char_u *retval;
#if defined(MSDOS) || defined(MSWIN) || defined(OS2)
/* may skip "c:" */
if (isalpha(path[0]) && path[1] == ':')
retval = path + 2;
else
retval = path;
#else
# if defined(AMIGA)
/* may skip "label:" */
retval = vim_strchr(path, ':');
if (retval == NULL)
retval = path;
# else /* Unix */
retval = path;
# endif
#endif
while (vim_ispathsep(*retval))
++retval;
return retval;
}
/*
* return TRUE if 'c' is a path separator.
*/
int
vim_ispathsep(c)
int c;
{
#ifdef RISCOS
return (c == '.' || c == ':');
#else
# ifdef UNIX
return (c == '/'); /* UNIX has ':' inside file names */
# else
# ifdef BACKSLASH_IN_FILENAME
return (c == ':' || c == '/' || c == '\\');
# else
# ifdef VMS
/* server"user passwd"::device:[full.path.name]fname.extension;version" */
return (c == ':' || c == '[' || c == ']' || c == '/'
|| c == '<' || c == '>' || c == '"' );
# else /* Amiga */
return (c == ':' || c == '/');
# endif /* VMS */
# endif
# endif
#endif /* RISC OS */
}
#if defined(FEAT_SEARCHPATH) || defined(PROTO)
/*
* return TRUE if 'c' is a path list separator.
*/
int
vim_ispathlistsep(c)
int c;
{
#ifdef UNIX
return (c == ':');
#else
return (c == ';'); /* might not be right for every system... */
#endif
}
#endif
#if defined(FEAT_GUI_TABLINE) || defined(FEAT_WINDOWS) \
|| defined(FEAT_EVAL) || defined(PROTO)
/*
* Shorten the path of a file from "~/foo/../.bar/fname" to "~/f/../.b/fname"
* It's done in-place.
*/
void
shorten_dir(str)
char_u *str;
{
char_u *tail, *s, *d;
int skip = FALSE;
tail = gettail(str);
d = str;
for (s = str; ; ++s)
{
if (s >= tail) /* copy the whole tail */
{
*d++ = *s;
if (*s == NUL)
break;
}
else if (vim_ispathsep(*s)) /* copy '/' and next char */
{
*d++ = *s;
skip = FALSE;
}
else if (!skip)
{
*d++ = *s; /* copy next char */
if (*s != '~' && *s != '.') /* and leading "~" and "." */
skip = TRUE;
# ifdef FEAT_MBYTE
if (has_mbyte)
{
int l = mb_ptr2len(s);
while (--l > 0)
*d++ = *++s;
}
# endif
}
}
}
#endif
/*
* Return TRUE if the directory of "fname" exists, FALSE otherwise.
* Also returns TRUE if there is no directory name.
* "fname" must be writable!.
*/
int
dir_of_file_exists(fname)
char_u *fname;
{
char_u *p;
int c;
int retval;
p = gettail_sep(fname);
if (p == fname)
return TRUE;
c = *p;
*p = NUL;
retval = mch_isdir(fname);
*p = c;
return retval;
}
#if (defined(CASE_INSENSITIVE_FILENAME) && defined(BACKSLASH_IN_FILENAME)) \
|| defined(PROTO)
/*
* Versions of fnamecmp() and fnamencmp() that handle '/' and '\' equally.
*/
int
vim_fnamecmp(x, y)
char_u *x, *y;
{
return vim_fnamencmp(x, y, MAXPATHL);
}
int
vim_fnamencmp(x, y, len)
char_u *x, *y;
size_t len;
{
while (len > 0 && *x && *y)
{
if (TOLOWER_LOC(*x) != TOLOWER_LOC(*y)
&& !(*x == '/' && *y == '\\')
&& !(*x == '\\' && *y == '/'))
break;
++x;
++y;
--len;
}
if (len == 0)
return 0;
return (*x - *y);
}
#endif
/*
* Concatenate file names fname1 and fname2 into allocated memory.
* Only add a '/' or '\\' when 'sep' is TRUE and it is necessary.
*/
char_u *
concat_fnames(fname1, fname2, sep)
char_u *fname1;
char_u *fname2;
int sep;
{
char_u *dest;
dest = alloc((unsigned)(STRLEN(fname1) + STRLEN(fname2) + 3));
if (dest != NULL)
{
STRCPY(dest, fname1);
if (sep)
add_pathsep(dest);
STRCAT(dest, fname2);
}
return dest;
}
#if defined(FEAT_EVAL) || defined(FEAT_GETTEXT) || defined(PROTO)
/*
* Concatenate two strings and return the result in allocated memory.
* Returns NULL when out of memory.
*/
char_u *
concat_str(str1, str2)
char_u *str1;
char_u *str2;
{
char_u *dest;
size_t l = STRLEN(str1);
dest = alloc((unsigned)(l + STRLEN(str2) + 1L));
if (dest != NULL)
{
STRCPY(dest, str1);
STRCPY(dest + l, str2);
}
return dest;
}
#endif
/*
* Add a path separator to a file name, unless it already ends in a path
* separator.
*/
void
add_pathsep(p)
char_u *p;
{
if (*p != NUL && !after_pathsep(p, p + STRLEN(p)))
STRCAT(p, PATHSEPSTR);
}
/*
* FullName_save - Make an allocated copy of a full file name.
* Returns NULL when out of memory.
*/
char_u *
FullName_save(fname, force)
char_u *fname;
int force; /* force expansion, even when it already looks
like a full path name */
{
char_u *buf;
char_u *new_fname = NULL;
if (fname == NULL)
return NULL;
buf = alloc((unsigned)MAXPATHL);
if (buf != NULL)
{
if (vim_FullName(fname, buf, MAXPATHL, force) != FAIL)
new_fname = vim_strsave(buf);
else
new_fname = vim_strsave(fname);
vim_free(buf);
}
return new_fname;
}
#if defined(FEAT_CINDENT) || defined(FEAT_SYN_HL)
static char_u *skip_string __ARGS((char_u *p));
/*
* Find the start of a comment, not knowing if we are in a comment right now.
* Search starts at w_cursor.lnum and goes backwards.
*/
pos_T *
find_start_comment(ind_maxcomment) /* XXX */
int ind_maxcomment;
{
pos_T *pos;
char_u *line;
char_u *p;
int cur_maxcomment = ind_maxcomment;
for (;;)
{
pos = findmatchlimit(NULL, '*', FM_BACKWARD, cur_maxcomment);
if (pos == NULL)
break;
/*
* Check if the comment start we found is inside a string.
* If it is then restrict the search to below this line and try again.
*/
line = ml_get(pos->lnum);
for (p = line; *p && (unsigned)(p - line) < pos->col; ++p)
p = skip_string(p);
if ((unsigned)(p - line) <= pos->col)
break;
cur_maxcomment = curwin->w_cursor.lnum - pos->lnum - 1;
if (cur_maxcomment <= 0)
{
pos = NULL;
break;
}
}
return pos;
}
/*
* Skip to the end of a "string" and a 'c' character.
* If there is no string or character, return argument unmodified.
*/
static char_u *
skip_string(p)
char_u *p;
{
int i;
/*
* We loop, because strings may be concatenated: "date""time".
*/
for ( ; ; ++p)
{
if (p[0] == '\'') /* 'c' or '\n' or '\000' */
{
if (!p[1]) /* ' at end of line */
break;
i = 2;
if (p[1] == '\\') /* '\n' or '\000' */
{
++i;
while (vim_isdigit(p[i - 1])) /* '\000' */
++i;
}
if (p[i] == '\'') /* check for trailing ' */
{
p += i;
continue;
}
}
else if (p[0] == '"') /* start of string */
{
for (++p; p[0]; ++p)
{
if (p[0] == '\\' && p[1] != NUL)
++p;
else if (p[0] == '"') /* end of string */
break;
}
if (p[0] == '"')
continue;
}
break; /* no string found */
}
if (!*p)
--p; /* backup from NUL */
return p;
}
#endif /* FEAT_CINDENT || FEAT_SYN_HL */
#if defined(FEAT_CINDENT) || defined(PROTO)
/*
* Do C or expression indenting on the current line.
*/
void
do_c_expr_indent()
{
# ifdef FEAT_EVAL
if (*curbuf->b_p_inde != NUL)
fixthisline(get_expr_indent);
else
# endif
fixthisline(get_c_indent);
}
/*
* Functions for C-indenting.
* Most of this originally comes from Eric Fischer.
*/
/*
* Below "XXX" means that this function may unlock the current line.
*/
static char_u *cin_skipcomment __ARGS((char_u *));
static int cin_nocode __ARGS((char_u *));
static pos_T *find_line_comment __ARGS((void));
static int cin_islabel_skip __ARGS((char_u **));
static int cin_isdefault __ARGS((char_u *));
static char_u *after_label __ARGS((char_u *l));
static int get_indent_nolabel __ARGS((linenr_T lnum));
static int skip_label __ARGS((linenr_T, char_u **pp, int ind_maxcomment));
static int cin_first_id_amount __ARGS((void));
static int cin_get_equal_amount __ARGS((linenr_T lnum));
static int cin_ispreproc __ARGS((char_u *));
static int cin_ispreproc_cont __ARGS((char_u **pp, linenr_T *lnump));
static int cin_iscomment __ARGS((char_u *));
static int cin_islinecomment __ARGS((char_u *));
static int cin_isterminated __ARGS((char_u *, int, int));
static int cin_isinit __ARGS((void));
static int cin_isfuncdecl __ARGS((char_u **, linenr_T));
static int cin_isif __ARGS((char_u *));
static int cin_iselse __ARGS((char_u *));
static int cin_isdo __ARGS((char_u *));
static int cin_iswhileofdo __ARGS((char_u *, linenr_T, int));
static int cin_iswhileofdo_end __ARGS((int terminated, int ind_maxparen, int ind_maxcomment));
static int cin_isbreak __ARGS((char_u *));
static int cin_is_cpp_baseclass __ARGS((char_u *line, colnr_T *col));
static int get_baseclass_amount __ARGS((int col, int ind_maxparen, int ind_maxcomment, int ind_cpp_baseclass));
static int cin_ends_in __ARGS((char_u *, char_u *, char_u *));
static int cin_skip2pos __ARGS((pos_T *trypos));
static pos_T *find_start_brace __ARGS((int));
static pos_T *find_match_paren __ARGS((int, int));
static int corr_ind_maxparen __ARGS((int ind_maxparen, pos_T *startpos));
static int find_last_paren __ARGS((char_u *l, int start, int end));
static int find_match __ARGS((int lookfor, linenr_T ourscope, int ind_maxparen, int ind_maxcomment));
static int ind_hash_comment = 0; /* # starts a comment */
/*
* Skip over white space and C comments within the line.
* Also skip over Perl/shell comments if desired.
*/
static char_u *
cin_skipcomment(s)
char_u *s;
{
while (*s)
{
char_u *prev_s = s;
s = skipwhite(s);
/* Perl/shell # comment comment continues until eol. Require a space
* before # to avoid recognizing $#array. */
if (ind_hash_comment != 0 && s != prev_s && *s == '#')
{
s += STRLEN(s);
break;
}
if (*s != '/')
break;
++s;
if (*s == '/') /* slash-slash comment continues till eol */
{
s += STRLEN(s);
break;
}
if (*s != '*')
break;
for (++s; *s; ++s) /* skip slash-star comment */
if (s[0] == '*' && s[1] == '/')
{
s += 2;
break;
}
}
return s;
}
/*
* Return TRUE if there there is no code at *s. White space and comments are
* not considered code.
*/
static int
cin_nocode(s)
char_u *s;
{
return *cin_skipcomment(s) == NUL;
}
/*
* Check previous lines for a "//" line comment, skipping over blank lines.
*/
static pos_T *
find_line_comment() /* XXX */
{
static pos_T pos;
char_u *line;
char_u *p;
pos = curwin->w_cursor;
while (--pos.lnum > 0)
{
line = ml_get(pos.lnum);
p = skipwhite(line);
if (cin_islinecomment(p))
{
pos.col = (int)(p - line);
return &pos;
}
if (*p != NUL)
break;
}
return NULL;
}
/*
* Check if string matches "label:"; move to character after ':' if true.
*/
static int
cin_islabel_skip(s)
char_u **s;
{
if (!vim_isIDc(**s)) /* need at least one ID character */
return FALSE;
while (vim_isIDc(**s))
(*s)++;
*s = cin_skipcomment(*s);
/* "::" is not a label, it's C++ */
return (**s == ':' && *++*s != ':');
}
/*
* Recognize a label: "label:".
* Note: curwin->w_cursor must be where we are looking for the label.
*/
int
cin_islabel(ind_maxcomment) /* XXX */
int ind_maxcomment;
{
char_u *s;
s = cin_skipcomment(ml_get_curline());
/*
* Exclude "default" from labels, since it should be indented
* like a switch label. Same for C++ scope declarations.
*/
if (cin_isdefault(s))
return FALSE;
if (cin_isscopedecl(s))
return FALSE;
if (cin_islabel_skip(&s))
{
/*
* Only accept a label if the previous line is terminated or is a case
* label.
*/
pos_T cursor_save;
pos_T *trypos;
char_u *line;
cursor_save = curwin->w_cursor;
while (curwin->w_cursor.lnum > 1)
{
--curwin->w_cursor.lnum;
/*
* If we're in a comment now, skip to the start of the comment.
*/
curwin->w_cursor.col = 0;
if ((trypos = find_start_comment(ind_maxcomment)) != NULL) /* XXX */
curwin->w_cursor = *trypos;
line = ml_get_curline();
if (cin_ispreproc(line)) /* ignore #defines, #if, etc. */
continue;
if (*(line = cin_skipcomment(line)) == NUL)
continue;
curwin->w_cursor = cursor_save;
if (cin_isterminated(line, TRUE, FALSE)
|| cin_isscopedecl(line)
|| cin_iscase(line)
|| (cin_islabel_skip(&line) && cin_nocode(line)))
return TRUE;
return FALSE;
}
curwin->w_cursor = cursor_save;
return TRUE; /* label at start of file??? */
}
return FALSE;
}
/*
* Recognize structure initialization and enumerations.
* Q&D-Implementation:
* check for "=" at end or "[typedef] enum" at beginning of line.
*/
static int
cin_isinit(void)
{
char_u *s;
s = cin_skipcomment(ml_get_curline());
if (STRNCMP(s, "typedef", 7) == 0 && !vim_isIDc(s[7]))
s = cin_skipcomment(s + 7);
if (STRNCMP(s, "enum", 4) == 0 && !vim_isIDc(s[4]))
return TRUE;
if (cin_ends_in(s, (char_u *)"=", (char_u *)"{"))
return TRUE;
return FALSE;
}
/*
* Recognize a switch label: "case .*:" or "default:".
*/
int
cin_iscase(s)
char_u *s;
{
s = cin_skipcomment(s);
if (STRNCMP(s, "case", 4) == 0 && !vim_isIDc(s[4]))
{
for (s += 4; *s; ++s)
{
s = cin_skipcomment(s);
if (*s == ':')
{
if (s[1] == ':') /* skip over "::" for C++ */
++s;
else
return TRUE;
}
if (*s == '\'' && s[1] && s[2] == '\'')
s += 2; /* skip over '.' */
else if (*s == '/' && (s[1] == '*' || s[1] == '/'))
return FALSE; /* stop at comment */
else if (*s == '"')
return FALSE; /* stop at string */
}
return FALSE;
}
if (cin_isdefault(s))
return TRUE;
return FALSE;
}
/*
* Recognize a "default" switch label.
*/
static int
cin_isdefault(s)
char_u *s;
{
return (STRNCMP(s, "default", 7) == 0
&& *(s = cin_skipcomment(s + 7)) == ':'
&& s[1] != ':');
}
/*
* Recognize a "public/private/proctected" scope declaration label.
*/
int
cin_isscopedecl(s)
char_u *s;
{
int i;
s = cin_skipcomment(s);
if (STRNCMP(s, "public", 6) == 0)
i = 6;
else if (STRNCMP(s, "protected", 9) == 0)
i = 9;
else if (STRNCMP(s, "private", 7) == 0)
i = 7;
else
return FALSE;
return (*(s = cin_skipcomment(s + i)) == ':' && s[1] != ':');
}
/*
* Return a pointer to the first non-empty non-comment character after a ':'.
* Return NULL if not found.
* case 234: a = b;
* ^
*/
static char_u *
after_label(l)
char_u *l;
{
for ( ; *l; ++l)
{
if (*l == ':')
{
if (l[1] == ':') /* skip over "::" for C++ */
++l;
else if (!cin_iscase(l + 1))
break;
}
else if (*l == '\'' && l[1] && l[2] == '\'')
l += 2; /* skip over 'x' */
}
if (*l == NUL)
return NULL;
l = cin_skipcomment(l + 1);
if (*l == NUL)
return NULL;
return l;
}
/*
* Get indent of line "lnum", skipping a label.
* Return 0 if there is nothing after the label.
*/
static int
get_indent_nolabel(lnum) /* XXX */
linenr_T lnum;
{
char_u *l;
pos_T fp;
colnr_T col;
char_u *p;
l = ml_get(lnum);
p = after_label(l);
if (p == NULL)
return 0;
fp.col = (colnr_T)(p - l);
fp.lnum = lnum;
getvcol(curwin, &fp, &col, NULL, NULL);
return (int)col;
}
/*
* Find indent for line "lnum", ignoring any case or jump label.
* Also return a pointer to the text (after the label) in "pp".
* label: if (asdf && asdfasdf)
* ^
*/
static int
skip_label(lnum, pp, ind_maxcomment)
linenr_T lnum;
char_u **pp;
int ind_maxcomment;
{
char_u *l;
int amount;
pos_T cursor_save;
cursor_save = curwin->w_cursor;
curwin->w_cursor.lnum = lnum;
l = ml_get_curline();
/* XXX */
if (cin_iscase(l) || cin_isscopedecl(l) || cin_islabel(ind_maxcomment))
{
amount = get_indent_nolabel(lnum);
l = after_label(ml_get_curline());
if (l == NULL) /* just in case */
l = ml_get_curline();
}
else
{
amount = get_indent();
l = ml_get_curline();
}
*pp = l;
curwin->w_cursor = cursor_save;
return amount;
}
/*
* Return the indent of the first variable name after a type in a declaration.
* int a, indent of "a"
* static struct foo b, indent of "b"
* enum bla c, indent of "c"
* Returns zero when it doesn't look like a declaration.
*/
static int
cin_first_id_amount()
{
char_u *line, *p, *s;
int len;
pos_T fp;
colnr_T col;
line = ml_get_curline();
p = skipwhite(line);
len = (int)(skiptowhite(p) - p);
if (len == 6 && STRNCMP(p, "static", 6) == 0)
{
p = skipwhite(p + 6);
len = (int)(skiptowhite(p) - p);
}
if (len == 6 && STRNCMP(p, "struct", 6) == 0)
p = skipwhite(p + 6);
else if (len == 4 && STRNCMP(p, "enum", 4) == 0)
p = skipwhite(p + 4);
else if ((len == 8 && STRNCMP(p, "unsigned", 8) == 0)
|| (len == 6 && STRNCMP(p, "signed", 6) == 0))
{
s = skipwhite(p + len);
if ((STRNCMP(s, "int", 3) == 0 && vim_iswhite(s[3]))
|| (STRNCMP(s, "long", 4) == 0 && vim_iswhite(s[4]))
|| (STRNCMP(s, "short", 5) == 0 && vim_iswhite(s[5]))
|| (STRNCMP(s, "char", 4) == 0 && vim_iswhite(s[4])))
p = s;
}
for (len = 0; vim_isIDc(p[len]); ++len)
;
if (len == 0 || !vim_iswhite(p[len]) || cin_nocode(p))
return 0;
p = skipwhite(p + len);
fp.lnum = curwin->w_cursor.lnum;
fp.col = (colnr_T)(p - line);
getvcol(curwin, &fp, &col, NULL, NULL);
return (int)col;
}
/*
* Return the indent of the first non-blank after an equal sign.
* char *foo = "here";
* Return zero if no (useful) equal sign found.
* Return -1 if the line above "lnum" ends in a backslash.
* foo = "asdf\
* asdf\
* here";
*/
static int
cin_get_equal_amount(lnum)
linenr_T lnum;
{
char_u *line;
char_u *s;
colnr_T col;
pos_T fp;
if (lnum > 1)
{
line = ml_get(lnum - 1);
if (*line != NUL && line[STRLEN(line) - 1] == '\\')
return -1;
}
line = s = ml_get(lnum);
while (*s != NUL && vim_strchr((char_u *)"=;{}\"'", *s) == NULL)
{
if (cin_iscomment(s)) /* ignore comments */
s = cin_skipcomment(s);
else
++s;
}
if (*s != '=')
return 0;
s = skipwhite(s + 1);
if (cin_nocode(s))
return 0;
if (*s == '"') /* nice alignment for continued strings */
++s;
fp.lnum = lnum;
fp.col = (colnr_T)(s - line);
getvcol(curwin, &fp, &col, NULL, NULL);
return (int)col;
}
/*
* Recognize a preprocessor statement: Any line that starts with '#'.
*/
static int
cin_ispreproc(s)
char_u *s;
{
s = skipwhite(s);
if (*s == '#')
return TRUE;
return FALSE;
}
/*
* Return TRUE if line "*pp" at "*lnump" is a preprocessor statement or a
* continuation line of a preprocessor statement. Decrease "*lnump" to the
* start and return the line in "*pp".
*/
static int
cin_ispreproc_cont(pp, lnump)
char_u **pp;
linenr_T *lnump;
{
char_u *line = *pp;
linenr_T lnum = *lnump;
int retval = FALSE;
for (;;)
{
if (cin_ispreproc(line))
{
retval = TRUE;
*lnump = lnum;
break;
}
if (lnum == 1)
break;
line = ml_get(--lnum);
if (*line == NUL || line[STRLEN(line) - 1] != '\\')
break;
}
if (lnum != *lnump)
*pp = ml_get(*lnump);
return retval;
}
/*
* Recognize the start of a C or C++ comment.
*/
static int
cin_iscomment(p)
char_u *p;
{
return (p[0] == '/' && (p[1] == '*' || p[1] == '/'));
}
/*
* Recognize the start of a "//" comment.
*/
static int
cin_islinecomment(p)
char_u *p;
{
return (p[0] == '/' && p[1] == '/');
}
/*
* Recognize a line that starts with '{' or '}', or ends with ';', '{' or '}'.
* Don't consider "} else" a terminated line.
* Return the character terminating the line (ending char's have precedence if
* both apply in order to determine initializations).
*/
static int
cin_isterminated(s, incl_open, incl_comma)
char_u *s;
int incl_open; /* include '{' at the end as terminator */
int incl_comma; /* recognize a trailing comma */
{
char_u found_start = 0;
s = cin_skipcomment(s);
if (*s == '{' || (*s == '}' && !cin_iselse(s)))
found_start = *s;
while (*s)
{
/* skip over comments, "" strings and 'c'haracters */
s = skip_string(cin_skipcomment(s));
if ((*s == ';' || (incl_open && *s == '{') || *s == '}'
|| (incl_comma && *s == ','))
&& cin_nocode(s + 1))
return *s;
if (*s)
s++;
}
return found_start;
}
/*
* Recognize the basic picture of a function declaration -- it needs to
* have an open paren somewhere and a close paren at the end of the line and
* no semicolons anywhere.
* When a line ends in a comma we continue looking in the next line.
* "sp" points to a string with the line. When looking at other lines it must
* be restored to the line. When it's NULL fetch lines here.
* "lnum" is where we start looking.
*/
static int
cin_isfuncdecl(sp, first_lnum)
char_u **sp;
linenr_T first_lnum;
{
char_u *s;
linenr_T lnum = first_lnum;
int retval = FALSE;
if (sp == NULL)
s = ml_get(lnum);
else
s = *sp;
while (*s && *s != '(' && *s != ';' && *s != '\'' && *s != '"')
{
if (cin_iscomment(s)) /* ignore comments */
s = cin_skipcomment(s);
else
++s;
}
if (*s != '(')
return FALSE; /* ';', ' or " before any () or no '(' */
while (*s && *s != ';' && *s != '\'' && *s != '"')
{
if (*s == ')' && cin_nocode(s + 1))
{
/* ')' at the end: may have found a match
* Check for he previous line not to end in a backslash:
* #if defined(x) && \
* defined(y)
*/
lnum = first_lnum - 1;
s = ml_get(lnum);
if (*s == NUL || s[STRLEN(s) - 1] != '\\')
retval = TRUE;
goto done;
}
if (*s == ',' && cin_nocode(s + 1))
{
/* ',' at the end: continue looking in the next line */
if (lnum >= curbuf->b_ml.ml_line_count)
break;
s = ml_get(++lnum);
}
else if (cin_iscomment(s)) /* ignore comments */
s = cin_skipcomment(s);
else
++s;
}
done:
if (lnum != first_lnum && sp != NULL)
*sp = ml_get(first_lnum);
return retval;
}
static int
cin_isif(p)
char_u *p;
{
return (STRNCMP(p, "if", 2) == 0 && !vim_isIDc(p[2]));
}
static int
cin_iselse(p)
char_u *p;
{
if (*p == '}') /* accept "} else" */
p = cin_skipcomment(p + 1);
return (STRNCMP(p, "else", 4) == 0 && !vim_isIDc(p[4]));
}
static int
cin_isdo(p)
char_u *p;
{
return (STRNCMP(p, "do", 2) == 0 && !vim_isIDc(p[2]));
}
/*
* Check if this is a "while" that should have a matching "do".
* We only accept a "while (condition) ;", with only white space between the
* ')' and ';'. The condition may be spread over several lines.
*/
static int
cin_iswhileofdo(p, lnum, ind_maxparen) /* XXX */
char_u *p;
linenr_T lnum;
int ind_maxparen;
{
pos_T cursor_save;
pos_T *trypos;
int retval = FALSE;
p = cin_skipcomment(p);
if (*p == '}') /* accept "} while (cond);" */
p = cin_skipcomment(p + 1);
if (STRNCMP(p, "while", 5) == 0 && !vim_isIDc(p[5]))
{
cursor_save = curwin->w_cursor;
curwin->w_cursor.lnum = lnum;
curwin->w_cursor.col = 0;
p = ml_get_curline();
while (*p && *p != 'w') /* skip any '}', until the 'w' of the "while" */
{
++p;
++curwin->w_cursor.col;
}
if ((trypos = findmatchlimit(NULL, 0, 0, ind_maxparen)) != NULL
&& *cin_skipcomment(ml_get_pos(trypos) + 1) == ';')
retval = TRUE;
curwin->w_cursor = cursor_save;
}
return retval;
}
/*
* Return TRUE if we are at the end of a do-while.
* do
* nothing;
* while (foo
* && bar); <-- here
* Adjust the cursor to the line with "while".
*/
static int
cin_iswhileofdo_end(terminated, ind_maxparen, ind_maxcomment)
int terminated;
int ind_maxparen;
int ind_maxcomment;
{
char_u *line;
char_u *p;
char_u *s;
pos_T *trypos;
int i;
if (terminated != ';') /* there must be a ';' at the end */
return FALSE;
p = line = ml_get_curline();
while (*p != NUL)
{
p = cin_skipcomment(p);
if (*p == ')')
{
s = skipwhite(p + 1);
if (*s == ';' && cin_nocode(s + 1))
{
/* Found ");" at end of the line, now check there is "while"
* before the matching '('. XXX */
i = (int)(p - line);
curwin->w_cursor.col = i;
trypos = find_match_paren(ind_maxparen, ind_maxcomment);
if (trypos != NULL)
{
s = cin_skipcomment(ml_get(trypos->lnum));
if (*s == '}') /* accept "} while (cond);" */
s = cin_skipcomment(s + 1);
if (STRNCMP(s, "while", 5) == 0 && !vim_isIDc(s[5]))
{
curwin->w_cursor.lnum = trypos->lnum;
return TRUE;
}
}
/* Searching may have made "line" invalid, get it again. */
line = ml_get_curline();
p = line + i;
}
}
if (*p != NUL)
++p;
}
return FALSE;
}
static int
cin_isbreak(p)
char_u *p;
{
return (STRNCMP(p, "break", 5) == 0 && !vim_isIDc(p[5]));
}
/*
* Find the position of a C++ base-class declaration or
* constructor-initialization. eg:
*
* class MyClass :
* baseClass <-- here
* class MyClass : public baseClass,
* anotherBaseClass <-- here (should probably lineup ??)
* MyClass::MyClass(...) :
* baseClass(...) <-- here (constructor-initialization)
*
* This is a lot of guessing. Watch out for "cond ? func() : foo".
*/
static int
cin_is_cpp_baseclass(line, col)
char_u *line;
colnr_T *col; /* return: column to align with */
{
char_u *s;
int class_or_struct, lookfor_ctor_init, cpp_base_class;
linenr_T lnum = curwin->w_cursor.lnum;
*col = 0;
s = skipwhite(line);
if (*s == '#') /* skip #define FOO x ? (x) : x */
return FALSE;
s = cin_skipcomment(s);
if (*s == NUL)
return FALSE;
cpp_base_class = lookfor_ctor_init = class_or_struct = FALSE;
/* Search for a line starting with '#', empty, ending in ';' or containing
* '{' or '}' and start below it. This handles the following situations:
* a = cond ?
* func() :
* asdf;
* func::foo()
* : something
* {}
* Foo::Foo (int one, int two)
* : something(4),
* somethingelse(3)
* {}
*/
while (lnum > 1)
{
s = skipwhite(ml_get(lnum - 1));
if (*s == '#' || *s == NUL)
break;
while (*s != NUL)
{
s = cin_skipcomment(s);
if (*s == '{' || *s == '}'
|| (*s == ';' && cin_nocode(s + 1)))
break;
if (*s != NUL)
++s;
}
if (*s != NUL)
break;
--lnum;
}
s = cin_skipcomment(ml_get(lnum));
for (;;)
{
if (*s == NUL)
{
if (lnum == curwin->w_cursor.lnum)
break;
/* Continue in the cursor line. */
s = cin_skipcomment(ml_get(++lnum));
}
if (s[0] == ':')
{
if (s[1] == ':')
{
/* skip double colon. It can't be a constructor
* initialization any more */
lookfor_ctor_init = FALSE;
s = cin_skipcomment(s + 2);
}
else if (lookfor_ctor_init || class_or_struct)
{
/* we have something found, that looks like the start of
* cpp-base-class-declaration or contructor-initialization */
cpp_base_class = TRUE;
lookfor_ctor_init = class_or_struct = FALSE;
*col = 0;
s = cin_skipcomment(s + 1);
}
else
s = cin_skipcomment(s + 1);
}
else if ((STRNCMP(s, "class", 5) == 0 && !vim_isIDc(s[5]))
|| (STRNCMP(s, "struct", 6) == 0 && !vim_isIDc(s[6])))
{
class_or_struct = TRUE;
lookfor_ctor_init = FALSE;
if (*s == 'c')
s = cin_skipcomment(s + 5);
else
s = cin_skipcomment(s + 6);
}
else
{
if (s[0] == '{' || s[0] == '}' || s[0] == ';')
{
cpp_base_class = lookfor_ctor_init = class_or_struct = FALSE;
}
else if (s[0] == ')')
{
/* Constructor-initialization is assumed if we come across
* something like "):" */
class_or_struct = FALSE;
lookfor_ctor_init = TRUE;
}
else if (s[0] == '?')
{
/* Avoid seeing '() :' after '?' as constructor init. */
return FALSE;
}
else if (!vim_isIDc(s[0]))
{
/* if it is not an identifier, we are wrong */
class_or_struct = FALSE;
lookfor_ctor_init = FALSE;
}
else if (*col == 0)
{
/* it can't be a constructor-initialization any more */
lookfor_ctor_init = FALSE;
/* the first statement starts here: lineup with this one... */
if (cpp_base_class)
*col = (colnr_T)(s - line);
}
/* When the line ends in a comma don't align with it. */
if (lnum == curwin->w_cursor.lnum && *s == ',' && cin_nocode(s + 1))
*col = 0;
s = cin_skipcomment(s + 1);
}
}
return cpp_base_class;
}
static int
get_baseclass_amount(col, ind_maxparen, ind_maxcomment, ind_cpp_baseclass)
int col;
int ind_maxparen;
int ind_maxcomment;
int ind_cpp_baseclass;
{
int amount;
colnr_T vcol;
pos_T *trypos;
if (col == 0)
{
amount = get_indent();
if (find_last_paren(ml_get_curline(), '(', ')')
&& (trypos = find_match_paren(ind_maxparen,
ind_maxcomment)) != NULL)
amount = get_indent_lnum(trypos->lnum); /* XXX */
if (!cin_ends_in(ml_get_curline(), (char_u *)",", NULL))
amount += ind_cpp_baseclass;
}
else
{
curwin->w_cursor.col = col;
getvcol(curwin, &curwin->w_cursor, &vcol, NULL, NULL);
amount = (int)vcol;
}
if (amount < ind_cpp_baseclass)
amount = ind_cpp_baseclass;
return amount;
}
/*
* Return TRUE if string "s" ends with the string "find", possibly followed by
* white space and comments. Skip strings and comments.
* Ignore "ignore" after "find" if it's not NULL.
*/
static int
cin_ends_in(s, find, ignore)
char_u *s;
char_u *find;
char_u *ignore;
{
char_u *p = s;
char_u *r;
int len = (int)STRLEN(find);
while (*p != NUL)
{
p = cin_skipcomment(p);
if (STRNCMP(p, find, len) == 0)
{
r = skipwhite(p + len);
if (ignore != NULL && STRNCMP(r, ignore, STRLEN(ignore)) == 0)
r = skipwhite(r + STRLEN(ignore));
if (cin_nocode(r))
return TRUE;
}
if (*p != NUL)
++p;
}
return FALSE;
}
/*
* Skip strings, chars and comments until at or past "trypos".
* Return the column found.
*/
static int
cin_skip2pos(trypos)
pos_T *trypos;
{
char_u *line;
char_u *p;
p = line = ml_get(trypos->lnum);
while (*p && (colnr_T)(p - line) < trypos->col)
{
if (cin_iscomment(p))
p = cin_skipcomment(p);
else
{
p = skip_string(p);
++p;
}
}
return (int)(p - line);
}
/*
* Find the '{' at the start of the block we are in.
* Return NULL if no match found.
* Ignore a '{' that is in a comment, makes indenting the next three lines
* work. */
/* foo() */
/* { */
/* } */
static pos_T *
find_start_brace(ind_maxcomment) /* XXX */
int ind_maxcomment;
{
pos_T cursor_save;
pos_T *trypos;
pos_T *pos;
static pos_T pos_copy;
cursor_save = curwin->w_cursor;
while ((trypos = findmatchlimit(NULL, '{', FM_BLOCKSTOP, 0)) != NULL)
{
pos_copy = *trypos; /* copy pos_T, next findmatch will change it */
trypos = &pos_copy;
curwin->w_cursor = *trypos;
pos = NULL;
/* ignore the { if it's in a // or / * * / comment */
if ((colnr_T)cin_skip2pos(trypos) == trypos->col
&& (pos = find_start_comment(ind_maxcomment)) == NULL) /* XXX */
break;
if (pos != NULL)
curwin->w_cursor.lnum = pos->lnum;
}
curwin->w_cursor = cursor_save;
return trypos;
}
/*
* Find the matching '(', failing if it is in a comment.
* Return NULL of no match found.
*/
static pos_T *
find_match_paren(ind_maxparen, ind_maxcomment) /* XXX */
int ind_maxparen;
int ind_maxcomment;
{
pos_T cursor_save;
pos_T *trypos;
static pos_T pos_copy;
cursor_save = curwin->w_cursor;
if ((trypos = findmatchlimit(NULL, '(', 0, ind_maxparen)) != NULL)
{
/* check if the ( is in a // comment */
if ((colnr_T)cin_skip2pos(trypos) > trypos->col)
trypos = NULL;
else
{
pos_copy = *trypos; /* copy trypos, findmatch will change it */
trypos = &pos_copy;
curwin->w_cursor = *trypos;
if (find_start_comment(ind_maxcomment) != NULL) /* XXX */
trypos = NULL;
}
}
curwin->w_cursor = cursor_save;
return trypos;
}
/*
* Return ind_maxparen corrected for the difference in line number between the
* cursor position and "startpos". This makes sure that searching for a
* matching paren above the cursor line doesn't find a match because of
* looking a few lines further.
*/
static int
corr_ind_maxparen(ind_maxparen, startpos)
int ind_maxparen;
pos_T *startpos;
{
long n = (long)startpos->lnum - (long)curwin->w_cursor.lnum;
if (n > 0 && n < ind_maxparen / 2)
return ind_maxparen - (int)n;
return ind_maxparen;
}
/*
* Set w_cursor.col to the column number of the last unmatched ')' or '{' in
* line "l".
*/
static int
find_last_paren(l, start, end)
char_u *l;
int start, end;
{
int i;
int retval = FALSE;
int open_count = 0;
curwin->w_cursor.col = 0; /* default is start of line */
for (i = 0; l[i]; i++)
{
i = (int)(cin_skipcomment(l + i) - l); /* ignore parens in comments */
i = (int)(skip_string(l + i) - l); /* ignore parens in quotes */
if (l[i] == start)
++open_count;
else if (l[i] == end)
{
if (open_count > 0)
--open_count;
else
{
curwin->w_cursor.col = i;
retval = TRUE;
}
}
}
return retval;
}
int
get_c_indent()
{
/*
* spaces from a block's opening brace the prevailing indent for that
* block should be
*/
int ind_level = curbuf->b_p_sw;
/*
* spaces from the edge of the line an open brace that's at the end of a
* line is imagined to be.
*/
int ind_open_imag = 0;
/*
* spaces from the prevailing indent for a line that is not precededof by
* an opening brace.
*/
int ind_no_brace = 0;
/*
* column where the first { of a function should be located }
*/
int ind_first_open = 0;
/*
* spaces from the prevailing indent a leftmost open brace should be
* located
*/
int ind_open_extra = 0;
/*
* spaces from the matching open brace (real location for one at the left
* edge; imaginary location from one that ends a line) the matching close
* brace should be located
*/
int ind_close_extra = 0;
/*
* spaces from the edge of the line an open brace sitting in the leftmost
* column is imagined to be
*/
int ind_open_left_imag = 0;
/*
* spaces from the switch() indent a "case xx" label should be located
*/
int ind_case = curbuf->b_p_sw;
/*
* spaces from the "case xx:" code after a switch() should be located
*/
int ind_case_code = curbuf->b_p_sw;
/*
* lineup break at end of case in switch() with case label
*/
int ind_case_break = 0;
/*
* spaces from the class declaration indent a scope declaration label
* should be located
*/
int ind_scopedecl = curbuf->b_p_sw;
/*
* spaces from the scope declaration label code should be located
*/
int ind_scopedecl_code = curbuf->b_p_sw;
/*
* amount K&R-style parameters should be indented
*/
int ind_param = curbuf->b_p_sw;
/*
* amount a function type spec should be indented
*/
int ind_func_type = curbuf->b_p_sw;
/*
* amount a cpp base class declaration or constructor initialization
* should be indented
*/
int ind_cpp_baseclass = curbuf->b_p_sw;
/*
* additional spaces beyond the prevailing indent a continuation line
* should be located
*/
int ind_continuation = curbuf->b_p_sw;
/*
* spaces from the indent of the line with an unclosed parentheses
*/
int ind_unclosed = curbuf->b_p_sw * 2;
/*
* spaces from the indent of the line with an unclosed parentheses, which
* itself is also unclosed
*/
int ind_unclosed2 = curbuf->b_p_sw;
/*
* suppress ignoring spaces from the indent of a line starting with an
* unclosed parentheses.
*/
int ind_unclosed_noignore = 0;
/*
* If the opening paren is the last nonwhite character on the line, and
* ind_unclosed_wrapped is nonzero, use this indent relative to the outer
* context (for very long lines).
*/
int ind_unclosed_wrapped = 0;
/*
* suppress ignoring white space when lining up with the character after
* an unclosed parentheses.
*/
int ind_unclosed_whiteok = 0;
/*
* indent a closing parentheses under the line start of the matching
* opening parentheses.
*/
int ind_matching_paren = 0;
/*
* indent a closing parentheses under the previous line.
*/
int ind_paren_prev = 0;
/*
* Extra indent for comments.
*/
int ind_comment = 0;
/*
* spaces from the comment opener when there is nothing after it.
*/
int ind_in_comment = 3;
/*
* boolean: if non-zero, use ind_in_comment even if there is something
* after the comment opener.
*/
int ind_in_comment2 = 0;
/*
* max lines to search for an open paren
*/
int ind_maxparen = 20;
/*
* max lines to search for an open comment
*/
int ind_maxcomment = 70;
/*
* handle braces for java code
*/
int ind_java = 0;
/*
* handle blocked cases correctly
*/
int ind_keep_case_label = 0;
pos_T cur_curpos;
int amount;
int scope_amount;
int cur_amount = MAXCOL;
colnr_T col;
char_u *theline;
char_u *linecopy;
pos_T *trypos;
pos_T *tryposBrace = NULL;
pos_T our_paren_pos;
char_u *start;
int start_brace;
#define BRACE_IN_COL0 1 /* '{' is in comumn 0 */
#define BRACE_AT_START 2 /* '{' is at start of line */
#define BRACE_AT_END 3 /* '{' is at end of line */
linenr_T ourscope;
char_u *l;
char_u *look;
char_u terminated;
int lookfor;
#define LOOKFOR_INITIAL 0
#define LOOKFOR_IF 1
#define LOOKFOR_DO 2
#define LOOKFOR_CASE 3
#define LOOKFOR_ANY 4
#define LOOKFOR_TERM 5
#define LOOKFOR_UNTERM 6
#define LOOKFOR_SCOPEDECL 7
#define LOOKFOR_NOBREAK 8
#define LOOKFOR_CPP_BASECLASS 9
#define LOOKFOR_ENUM_OR_INIT 10
int whilelevel;
linenr_T lnum;
char_u *options;
int fraction = 0; /* init for GCC */
int divider;
int n;
int iscase;
int lookfor_break;
int cont_amount = 0; /* amount for continuation line */
for (options = curbuf->b_p_cino; *options; )
{
l = options++;
if (*options == '-')
++options;
n = getdigits(&options);
divider = 0;
if (*options == '.') /* ".5s" means a fraction */
{
fraction = atol((char *)++options);
while (VIM_ISDIGIT(*options))
{
++options;
if (divider)
divider *= 10;
else
divider = 10;
}
}
if (*options == 's') /* "2s" means two times 'shiftwidth' */
{
if (n == 0 && fraction == 0)
n = curbuf->b_p_sw; /* just "s" is one 'shiftwidth' */
else
{
n *= curbuf->b_p_sw;
if (divider)
n += (curbuf->b_p_sw * fraction + divider / 2) / divider;
}
++options;
}
if (l[1] == '-')
n = -n;
/* When adding an entry here, also update the default 'cinoptions' in
* doc/indent.txt, and add explanation for it! */
switch (*l)
{
case '>': ind_level = n; break;
case 'e': ind_open_imag = n; break;
case 'n': ind_no_brace = n; break;
case 'f': ind_first_open = n; break;
case '{': ind_open_extra = n; break;
case '}': ind_close_extra = n; break;
case '^': ind_open_left_imag = n; break;
case ':': ind_case = n; break;
case '=': ind_case_code = n; break;
case 'b': ind_case_break = n; break;
case 'p': ind_param = n; break;
case 't': ind_func_type = n; break;
case '/': ind_comment = n; break;
case 'c': ind_in_comment = n; break;
case 'C': ind_in_comment2 = n; break;
case 'i': ind_cpp_baseclass = n; break;
case '+': ind_continuation = n; break;
case '(': ind_unclosed = n; break;
case 'u': ind_unclosed2 = n; break;
case 'U': ind_unclosed_noignore = n; break;
case 'W': ind_unclosed_wrapped = n; break;
case 'w': ind_unclosed_whiteok = n; break;
case 'm': ind_matching_paren = n; break;
case 'M': ind_paren_prev = n; break;
case ')': ind_maxparen = n; break;
case '*': ind_maxcomment = n; break;
case 'g': ind_scopedecl = n; break;
case 'h': ind_scopedecl_code = n; break;
case 'j': ind_java = n; break;
case 'l': ind_keep_case_label = n; break;
case '#': ind_hash_comment = n; break;
}
}
/* remember where the cursor was when we started */
cur_curpos = curwin->w_cursor;
/* Get a copy of the current contents of the line.
* This is required, because only the most recent line obtained with
* ml_get is valid! */
linecopy = vim_strsave(ml_get(cur_curpos.lnum));
if (linecopy == NULL)
return 0;
/*
* In insert mode and the cursor is on a ')' truncate the line at the
* cursor position. We don't want to line up with the matching '(' when
* inserting new stuff.
* For unknown reasons the cursor might be past the end of the line, thus
* check for that.
*/
if ((State & INSERT)
&& curwin->w_cursor.col < STRLEN(linecopy)
&& linecopy[curwin->w_cursor.col] == ')')
linecopy[curwin->w_cursor.col] = NUL;
theline = skipwhite(linecopy);
/* move the cursor to the start of the line */
curwin->w_cursor.col = 0;
/*
* #defines and so on always go at the left when included in 'cinkeys'.
*/
if (*theline == '#' && (*linecopy == '#' || in_cinkeys('#', ' ', TRUE)))
{
amount = 0;
}
/*
* Is it a non-case label? Then that goes at the left margin too.
*/
else if (cin_islabel(ind_maxcomment)) /* XXX */
{
amount = 0;
}
/*
* If we're inside a "//" comment and there is a "//" comment in a
* previous line, lineup with that one.
*/
else if (cin_islinecomment(theline)
&& (trypos = find_line_comment()) != NULL) /* XXX */
{
/* find how indented the line beginning the comment is */
getvcol(curwin, trypos, &col, NULL, NULL);
amount = col;
}
/*
* If we're inside a comment and not looking at the start of the
* comment, try using the 'comments' option.
*/
else if (!cin_iscomment(theline)
&& (trypos = find_start_comment(ind_maxcomment)) != NULL) /* XXX */
{
int lead_start_len = 2;
int lead_middle_len = 1;
char_u lead_start[COM_MAX_LEN]; /* start-comment string */
char_u lead_middle[COM_MAX_LEN]; /* middle-comment string */
char_u lead_end[COM_MAX_LEN]; /* end-comment string */
char_u *p;
int start_align = 0;
int start_off = 0;
int done = FALSE;
/* find how indented the line beginning the comment is */
getvcol(curwin, trypos, &col, NULL, NULL);
amount = col;
p = curbuf->b_p_com;
while (*p != NUL)
{
int align = 0;
int off = 0;
int what = 0;
while (*p != NUL && *p != ':')
{
if (*p == COM_START || *p == COM_END || *p == COM_MIDDLE)
what = *p++;
else if (*p == COM_LEFT || *p == COM_RIGHT)
align = *p++;
else if (VIM_ISDIGIT(*p) || *p == '-')
off = getdigits(&p);
else
++p;
}
if (*p == ':')
++p;
(void)copy_option_part(&p, lead_end, COM_MAX_LEN, ",");
if (what == COM_START)
{
STRCPY(lead_start, lead_end);
lead_start_len = (int)STRLEN(lead_start);
start_off = off;
start_align = align;
}
else if (what == COM_MIDDLE)
{
STRCPY(lead_middle, lead_end);
lead_middle_len = (int)STRLEN(lead_middle);
}
else if (what == COM_END)
{
/* If our line starts with the middle comment string, line it
* up with the comment opener per the 'comments' option. */
if (STRNCMP(theline, lead_middle, lead_middle_len) == 0
&& STRNCMP(theline, lead_end, STRLEN(lead_end)) != 0)
{
done = TRUE;
if (curwin->w_cursor.lnum > 1)
{
/* If the start comment string matches in the previous
* line, use the indent of that line pluss offset. If
* the middle comment string matches in the previous
* line, use the indent of that line. XXX */
look = skipwhite(ml_get(curwin->w_cursor.lnum - 1));
if (STRNCMP(look, lead_start, lead_start_len) == 0)
amount = get_indent_lnum(curwin->w_cursor.lnum - 1);
else if (STRNCMP(look, lead_middle,
lead_middle_len) == 0)
{
amount = get_indent_lnum(curwin->w_cursor.lnum - 1);
break;
}
/* If the start comment string doesn't match with the
* start of the comment, skip this entry. XXX */
else if (STRNCMP(ml_get(trypos->lnum) + trypos->col,
lead_start, lead_start_len) != 0)
continue;
}
if (start_off != 0)
amount += start_off;
else if (start_align == COM_RIGHT)
amount += vim_strsize(lead_start)
- vim_strsize(lead_middle);
break;
}
/* If our line starts with the end comment string, line it up
* with the middle comment */
if (STRNCMP(theline, lead_middle, lead_middle_len) != 0
&& STRNCMP(theline, lead_end, STRLEN(lead_end)) == 0)
{
amount = get_indent_lnum(curwin->w_cursor.lnum - 1);
/* XXX */
if (off != 0)
amount += off;
else if (align == COM_RIGHT)
amount += vim_strsize(lead_start)
- vim_strsize(lead_middle);
done = TRUE;
break;
}
}
}
/* If our line starts with an asterisk, line up with the
* asterisk in the comment opener; otherwise, line up
* with the first character of the comment text.
*/
if (done)
;
else if (theline[0] == '*')
amount += 1;
else
{
/*
* If we are more than one line away from the comment opener, take
* the indent of the previous non-empty line. If 'cino' has "CO"
* and we are just below the comment opener and there are any
* white characters after it line up with the text after it;
* otherwise, add the amount specified by "c" in 'cino'
*/
amount = -1;
for (lnum = cur_curpos.lnum - 1; lnum > trypos->lnum; --lnum)
{
if (linewhite(lnum)) /* skip blank lines */
continue;
amount = get_indent_lnum(lnum); /* XXX */
break;
}
if (amount == -1) /* use the comment opener */
{
if (!ind_in_comment2)
{
start = ml_get(trypos->lnum);
look = start + trypos->col + 2; /* skip / and * */
if (*look != NUL) /* if something after it */
trypos->col = (colnr_T)(skipwhite(look) - start);
}
getvcol(curwin, trypos, &col, NULL, NULL);
amount = col;
if (ind_in_comment2 || *look == NUL)
amount += ind_in_comment;
}
}
}
/*
* Are we inside parentheses or braces?
*/ /* XXX */
else if (((trypos = find_match_paren(ind_maxparen, ind_maxcomment)) != NULL
&& ind_java == 0)
|| (tryposBrace = find_start_brace(ind_maxcomment)) != NULL
|| trypos != NULL)
{
if (trypos != NULL && tryposBrace != NULL)
{
/* Both an unmatched '(' and '{' is found. Use the one which is
* closer to the current cursor position, set the other to NULL. */
if (trypos->lnum != tryposBrace->lnum
? trypos->lnum < tryposBrace->lnum
: trypos->col < tryposBrace->col)
trypos = NULL;
else
tryposBrace = NULL;
}
if (trypos != NULL)
{
/*
* If the matching paren is more than one line away, use the indent of
* a previous non-empty line that matches the same paren.
*/
if (theline[0] == ')' && ind_paren_prev)
{
/* Line up with the start of the matching paren line. */
amount = get_indent_lnum(curwin->w_cursor.lnum - 1); /* XXX */
}
else
{
amount = -1;
our_paren_pos = *trypos;
for (lnum = cur_curpos.lnum - 1; lnum > our_paren_pos.lnum; --lnum)
{
l = skipwhite(ml_get(lnum));
if (cin_nocode(l)) /* skip comment lines */
continue;
if (cin_ispreproc_cont(&l, &lnum))
continue; /* ignore #define, #if, etc. */
curwin->w_cursor.lnum = lnum;
/* Skip a comment. XXX */
if ((trypos = find_start_comment(ind_maxcomment)) != NULL)
{
lnum = trypos->lnum + 1;
continue;
}
/* XXX */
if ((trypos = find_match_paren(
corr_ind_maxparen(ind_maxparen, &cur_curpos),
ind_maxcomment)) != NULL
&& trypos->lnum == our_paren_pos.lnum
&& trypos->col == our_paren_pos.col)
{
amount = get_indent_lnum(lnum); /* XXX */
if (theline[0] == ')')
{
if (our_paren_pos.lnum != lnum
&& cur_amount > amount)
cur_amount = amount;
amount = -1;
}
break;
}
}
}
/*
* Line up with line where the matching paren is. XXX
* If the line starts with a '(' or the indent for unclosed
* parentheses is zero, line up with the unclosed parentheses.
*/
if (amount == -1)
{
int ignore_paren_col = 0;
amount = skip_label(our_paren_pos.lnum, &look, ind_maxcomment);
look = skipwhite(look);
if (*look == '(')
{
linenr_T save_lnum = curwin->w_cursor.lnum;
char_u *line;
int look_col;
/* Ignore a '(' in front of the line that has a match before
* our matching '('. */
curwin->w_cursor.lnum = our_paren_pos.lnum;
line = ml_get_curline();
look_col = (int)(look - line);
curwin->w_cursor.col = look_col + 1;
if ((trypos = findmatchlimit(NULL, ')', 0, ind_maxparen))
!= NULL
&& trypos->lnum == our_paren_pos.lnum
&& trypos->col < our_paren_pos.col)
ignore_paren_col = trypos->col + 1;
curwin->w_cursor.lnum = save_lnum;
look = ml_get(our_paren_pos.lnum) + look_col;
}
if (theline[0] == ')' || ind_unclosed == 0
|| (!ind_unclosed_noignore && *look == '('
&& ignore_paren_col == 0))
{
/*
* If we're looking at a close paren, line up right there;
* otherwise, line up with the next (non-white) character.
* When ind_unclosed_wrapped is set and the matching paren is
* the last nonwhite character of the line, use either the
* indent of the current line or the indentation of the next
* outer paren and add ind_unclosed_wrapped (for very long
* lines).
*/
if (theline[0] != ')')
{
cur_amount = MAXCOL;
l = ml_get(our_paren_pos.lnum);
if (ind_unclosed_wrapped
&& cin_ends_in(l, (char_u *)"(", NULL))
{
/* look for opening unmatched paren, indent one level
* for each additional level */
n = 1;
for (col = 0; col < our_paren_pos.col; ++col)
{
switch (l[col])
{
case '(':
case '{': ++n;
break;
case ')':
case '}': if (n > 1)
--n;
break;
}
}
our_paren_pos.col = 0;
amount += n * ind_unclosed_wrapped;
}
else if (ind_unclosed_whiteok)
our_paren_pos.col++;
else
{
col = our_paren_pos.col + 1;
while (vim_iswhite(l[col]))
col++;
if (l[col] != NUL) /* In case of trailing space */
our_paren_pos.col = col;
else
our_paren_pos.col++;
}
}
/*
* Find how indented the paren is, or the character after it
* if we did the above "if".
*/
if (our_paren_pos.col > 0)
{
getvcol(curwin, &our_paren_pos, &col, NULL, NULL);
if (cur_amount > (int)col)
cur_amount = col;
}
}
if (theline[0] == ')' && ind_matching_paren)
{
/* Line up with the start of the matching paren line. */
}
else if (ind_unclosed == 0 || (!ind_unclosed_noignore
&& *look == '(' && ignore_paren_col == 0))
{
if (cur_amount != MAXCOL)
amount = cur_amount;
}
else
{
/* Add ind_unclosed2 for each '(' before our matching one, but
* ignore (void) before the line (ignore_paren_col). */
col = our_paren_pos.col;
while ((int)our_paren_pos.col > ignore_paren_col)
{
--our_paren_pos.col;
switch (*ml_get_pos(&our_paren_pos))
{
case '(': amount += ind_unclosed2;
col = our_paren_pos.col;
break;
case ')': amount -= ind_unclosed2;
col = MAXCOL;
break;
}
}
/* Use ind_unclosed once, when the first '(' is not inside
* braces */
if (col == MAXCOL)
amount += ind_unclosed;
else
{
curwin->w_cursor.lnum = our_paren_pos.lnum;
curwin->w_cursor.col = col;
if ((trypos = find_match_paren(ind_maxparen,
ind_maxcomment)) != NULL)
amount += ind_unclosed2;
else
amount += ind_unclosed;
}
/*
* For a line starting with ')' use the minimum of the two
* positions, to avoid giving it more indent than the previous
* lines:
* func_long_name( if (x
* arg && yy
* ) ^ not here ) ^ not here
*/
if (cur_amount < amount)
amount = cur_amount;
}
}
/* add extra indent for a comment */
if (cin_iscomment(theline))
amount += ind_comment;
}
/*
* Are we at least inside braces, then?
*/
else
{
trypos = tryposBrace;
ourscope = trypos->lnum;
start = ml_get(ourscope);
/*
* Now figure out how indented the line is in general.
* If the brace was at the start of the line, we use that;
* otherwise, check out the indentation of the line as
* a whole and then add the "imaginary indent" to that.
*/
look = skipwhite(start);
if (*look == '{')
{
getvcol(curwin, trypos, &col, NULL, NULL);
amount = col;
if (*start == '{')
start_brace = BRACE_IN_COL0;
else
start_brace = BRACE_AT_START;
}
else
{
/*
* that opening brace might have been on a continuation
* line. if so, find the start of the line.
*/
curwin->w_cursor.lnum = ourscope;
/*
* position the cursor over the rightmost paren, so that
* matching it will take us back to the start of the line.
*/
lnum = ourscope;
if (find_last_paren(start, '(', ')')
&& (trypos = find_match_paren(ind_maxparen,
ind_maxcomment)) != NULL)
lnum = trypos->lnum;
/*
* It could have been something like
* case 1: if (asdf &&
* ldfd) {
* }
*/
if (ind_keep_case_label && cin_iscase(skipwhite(ml_get_curline())))
amount = get_indent();
else
amount = skip_label(lnum, &l, ind_maxcomment);
start_brace = BRACE_AT_END;
}
/*
* if we're looking at a closing brace, that's where
* we want to be. otherwise, add the amount of room
* that an indent is supposed to be.
*/
if (theline[0] == '}')
{
/*
* they may want closing braces to line up with something
* other than the open brace. indulge them, if so.
*/
amount += ind_close_extra;
}
else
{
/*
* If we're looking at an "else", try to find an "if"
* to match it with.
* If we're looking at a "while", try to find a "do"
* to match it with.
*/
lookfor = LOOKFOR_INITIAL;
if (cin_iselse(theline))
lookfor = LOOKFOR_IF;
else if (cin_iswhileofdo(theline, cur_curpos.lnum, ind_maxparen))
/* XXX */
lookfor = LOOKFOR_DO;
if (lookfor != LOOKFOR_INITIAL)
{
curwin->w_cursor.lnum = cur_curpos.lnum;
if (find_match(lookfor, ourscope, ind_maxparen,
ind_maxcomment) == OK)
{
amount = get_indent(); /* XXX */
goto theend;
}
}
/*
* We get here if we are not on an "while-of-do" or "else" (or
* failed to find a matching "if").
* Search backwards for something to line up with.
* First set amount for when we don't find anything.
*/
/*
* if the '{' is _really_ at the left margin, use the imaginary
* location of a left-margin brace. Otherwise, correct the
* location for ind_open_extra.
*/
if (start_brace == BRACE_IN_COL0) /* '{' is in column 0 */
{
amount = ind_open_left_imag;
}
else
{
if (start_brace == BRACE_AT_END) /* '{' is at end of line */
amount += ind_open_imag;
else
{
/* Compensate for adding ind_open_extra later. */
amount -= ind_open_extra;
if (amount < 0)
amount = 0;
}
}
lookfor_break = FALSE;
if (cin_iscase(theline)) /* it's a switch() label */
{
lookfor = LOOKFOR_CASE; /* find a previous switch() label */
amount += ind_case;
}
else if (cin_isscopedecl(theline)) /* private:, ... */
{
lookfor = LOOKFOR_SCOPEDECL; /* class decl is this block */
amount += ind_scopedecl;
}
else
{
if (ind_case_break && cin_isbreak(theline)) /* break; ... */
lookfor_break = TRUE;
lookfor = LOOKFOR_INITIAL;
amount += ind_level; /* ind_level from start of block */
}
scope_amount = amount;
whilelevel = 0;
/*
* Search backwards. If we find something we recognize, line up
* with that.
*
* if we're looking at an open brace, indent
* the usual amount relative to the conditional
* that opens the block.
*/
curwin->w_cursor = cur_curpos;
for (;;)
{
curwin->w_cursor.lnum--;
curwin->w_cursor.col = 0;
/*
* If we went all the way back to the start of our scope, line
* up with it.
*/
if (curwin->w_cursor.lnum <= ourscope)
{
/* we reached end of scope:
* if looking for a enum or structure initialization
* go further back:
* if it is an initializer (enum xxx or xxx =), then
* don't add ind_continuation, otherwise it is a variable
* declaration:
* int x,
* here; <-- add ind_continuation
*/
if (lookfor == LOOKFOR_ENUM_OR_INIT)
{
if (curwin->w_cursor.lnum == 0
|| curwin->w_cursor.lnum
< ourscope - ind_maxparen)
{
/* nothing found (abuse ind_maxparen as limit)
* assume terminated line (i.e. a variable
* initialization) */
if (cont_amount > 0)
amount = cont_amount;
else
amount += ind_continuation;
break;
}
l = ml_get_curline();
/*
* If we're in a comment now, skip to the start of the
* comment.
*/
trypos = find_start_comment(ind_maxcomment);
if (trypos != NULL)
{
curwin->w_cursor.lnum = trypos->lnum + 1;
continue;
}
/*
* Skip preprocessor directives and blank lines.
*/
if (cin_ispreproc_cont(&l, &curwin->w_cursor.lnum))
continue;
if (cin_nocode(l))
continue;
terminated = cin_isterminated(l, FALSE, TRUE);
/*
* If we are at top level and the line looks like a
* function declaration, we are done
* (it's a variable declaration).
*/
if (start_brace != BRACE_IN_COL0
|| !cin_isfuncdecl(&l, curwin->w_cursor.lnum))
{
/* if the line is terminated with another ','
* it is a continued variable initialization.
* don't add extra indent.
* TODO: does not work, if a function
* declaration is split over multiple lines:
* cin_isfuncdecl returns FALSE then.
*/
if (terminated == ',')
break;
/* if it es a enum declaration or an assignment,
* we are done.
*/
if (terminated != ';' && cin_isinit())
break;
/* nothing useful found */
if (terminated == 0 || terminated == '{')
continue;
}
if (terminated != ';')
{
/* Skip parens and braces. Position the cursor
* over the rightmost paren, so that matching it
* will take us back to the start of the line.
*/ /* XXX */
trypos = NULL;
if (find_last_paren(l, '(', ')'))
trypos = find_match_paren(ind_maxparen,
ind_maxcomment);
if (trypos == NULL && find_last_paren(l, '{', '}'))
trypos = find_start_brace(ind_maxcomment);
if (trypos != NULL)
{
curwin->w_cursor.lnum = trypos->lnum + 1;
continue;
}
}
/* it's a variable declaration, add indentation
* like in
* int a,
* b;
*/
if (cont_amount > 0)
amount = cont_amount;
else
amount += ind_continuation;
}
else if (lookfor == LOOKFOR_UNTERM)
{
if (cont_amount > 0)
amount = cont_amount;
else
amount += ind_continuation;
}
else if (lookfor != LOOKFOR_TERM
&& lookfor != LOOKFOR_CPP_BASECLASS)
{
amount = scope_amount;
if (theline[0] == '{')
amount += ind_open_extra;
}
break;
}
/*
* If we're in a comment now, skip to the start of the comment.
*/ /* XXX */
if ((trypos = find_start_comment(ind_maxcomment)) != NULL)
{
curwin->w_cursor.lnum = trypos->lnum + 1;
continue;
}
l = ml_get_curline();
/*
* If this is a switch() label, may line up relative to that.
* If this is a C++ scope declaration, do the same.
*/
iscase = cin_iscase(l);
if (iscase || cin_isscopedecl(l))
{
/* we are only looking for cpp base class
* declaration/initialization any longer */
if (lookfor == LOOKFOR_CPP_BASECLASS)
break;
/* When looking for a "do" we are not interested in
* labels. */
if (whilelevel > 0)
continue;
/*
* case xx:
* c = 99 + <- this indent plus continuation
*-> here;
*/
if (lookfor == LOOKFOR_UNTERM
|| lookfor == LOOKFOR_ENUM_OR_INIT)
{
if (cont_amount > 0)
amount = cont_amount;
else
amount += ind_continuation;
break;
}
/*
* case xx: <- line up with this case
* x = 333;
* case yy:
*/
if ( (iscase && lookfor == LOOKFOR_CASE)
|| (iscase && lookfor_break)
|| (!iscase && lookfor == LOOKFOR_SCOPEDECL))
{
/*
* Check that this case label is not for another
* switch()
*/ /* XXX */
if ((trypos = find_start_brace(ind_maxcomment)) ==
NULL || trypos->lnum == ourscope)
{
amount = get_indent(); /* XXX */
break;
}
continue;
}
n = get_indent_nolabel(curwin->w_cursor.lnum); /* XXX */
/*
* case xx: if (cond) <- line up with this if
* y = y + 1;
* -> s = 99;
*
* case xx:
* if (cond) <- line up with this line
* y = y + 1;
* -> s = 99;
*/
if (lookfor == LOOKFOR_TERM)
{
if (n)
amount = n;
if (!lookfor_break)
break;
}
/*
* case xx: x = x + 1; <- line up with this x
* -> y = y + 1;
*
* case xx: if (cond) <- line up with this if
* -> y = y + 1;
*/
if (n)
{
amount = n;
l = after_label(ml_get_curline());
if (l != NULL && cin_is_cinword(l))
{
if (theline[0] == '{')
amount += ind_open_extra;
else
amount += ind_level + ind_no_brace;
}
break;
}
/*
* Try to get the indent of a statement before the switch
* label. If nothing is found, line up relative to the
* switch label.
* break; <- may line up with this line
* case xx:
* -> y = 1;
*/
scope_amount = get_indent() + (iscase /* XXX */
? ind_case_code : ind_scopedecl_code);
lookfor = ind_case_break ? LOOKFOR_NOBREAK : LOOKFOR_ANY;
continue;
}
/*
* Looking for a switch() label or C++ scope declaration,
* ignore other lines, skip {}-blocks.
*/
if (lookfor == LOOKFOR_CASE || lookfor == LOOKFOR_SCOPEDECL)
{
if (find_last_paren(l, '{', '}') && (trypos =
find_start_brace(ind_maxcomment)) != NULL)
curwin->w_cursor.lnum = trypos->lnum + 1;
continue;
}
/*
* Ignore jump labels with nothing after them.
*/
if (cin_islabel(ind_maxcomment))
{
l = after_label(ml_get_curline());
if (l == NULL || cin_nocode(l))
continue;
}
/*
* Ignore #defines, #if, etc.
* Ignore comment and empty lines.
* (need to get the line again, cin_islabel() may have
* unlocked it)
*/
l = ml_get_curline();
if (cin_ispreproc_cont(&l, &curwin->w_cursor.lnum)
|| cin_nocode(l))
continue;
/*
* Are we at the start of a cpp base class declaration or
* constructor initialization?
*/ /* XXX */
n = FALSE;
if (lookfor != LOOKFOR_TERM && ind_cpp_baseclass > 0)
{
n = cin_is_cpp_baseclass(l, &col);
l = ml_get_curline();
}
if (n)
{
if (lookfor == LOOKFOR_UNTERM)
{
if (cont_amount > 0)
amount = cont_amount;
else
amount += ind_continuation;
}
else if (theline[0] == '{')
{
/* Need to find start of the declaration. */
lookfor = LOOKFOR_UNTERM;
ind_continuation = 0;
continue;
}
else
/* XXX */
amount = get_baseclass_amount(col, ind_maxparen,
ind_maxcomment, ind_cpp_baseclass);
break;
}
else if (lookfor == LOOKFOR_CPP_BASECLASS)
{
/* only look, whether there is a cpp base class
* declaration or initialization before the opening brace.
*/
if (cin_isterminated(l, TRUE, FALSE))
break;
else
continue;
}
/*
* What happens next depends on the line being terminated.
* If terminated with a ',' only consider it terminating if
* there is another unterminated statement behind, eg:
* 123,
* sizeof
* here
* Otherwise check whether it is a enumeration or structure
* initialisation (not indented) or a variable declaration
* (indented).
*/
terminated = cin_isterminated(l, FALSE, TRUE);
if (terminated == 0 || (lookfor != LOOKFOR_UNTERM
&& terminated == ','))
{
/*
* if we're in the middle of a paren thing,
* go back to the line that starts it so
* we can get the right prevailing indent
* if ( foo &&
* bar )
*/
/*
* position the cursor over the rightmost paren, so that
* matching it will take us back to the start of the line.
*/
(void)find_last_paren(l, '(', ')');
trypos = find_match_paren(
corr_ind_maxparen(ind_maxparen, &cur_curpos),
ind_maxcomment);
/*
* If we are looking for ',', we also look for matching
* braces.
*/
if (trypos == NULL && terminated == ','
&& find_last_paren(l, '{', '}'))
trypos = find_start_brace(ind_maxcomment);
if (trypos != NULL)
{
/*
* Check if we are on a case label now. This is
* handled above.
* case xx: if ( asdf &&
* asdf)
*/
curwin->w_cursor.lnum = trypos->lnum;
l = ml_get_curline();
if (cin_iscase(l) || cin_isscopedecl(l))
{
++curwin->w_cursor.lnum;
continue;
}
}
/*
* Skip over continuation lines to find the one to get the
* indent from
* char *usethis = "bla\
* bla",
* here;
*/
if (terminated == ',')
{
while (curwin->w_cursor.lnum > 1)
{
l = ml_get(curwin->w_cursor.lnum - 1);
if (*l == NUL || l[STRLEN(l) - 1] != '\\')
break;
--curwin->w_cursor.lnum;
}
}
/*
* Get indent and pointer to text for current line,
* ignoring any jump label. XXX
*/
cur_amount = skip_label(curwin->w_cursor.lnum,
&l, ind_maxcomment);
/*
* If this is just above the line we are indenting, and it
* starts with a '{', line it up with this line.
* while (not)
* -> {
* }
*/
if (terminated != ',' && lookfor != LOOKFOR_TERM
&& theline[0] == '{')
{
amount = cur_amount;
/*
* Only add ind_open_extra when the current line
* doesn't start with a '{', which must have a match
* in the same line (scope is the same). Probably:
* { 1, 2 },
* -> { 3, 4 }
*/
if (*skipwhite(l) != '{')
amount += ind_open_extra;
if (ind_cpp_baseclass)
{
/* have to look back, whether it is a cpp base
* class declaration or initialization */
lookfor = LOOKFOR_CPP_BASECLASS;
continue;
}
break;
}
/*
* Check if we are after an "if", "while", etc.
* Also allow " } else".
*/
if (cin_is_cinword(l) || cin_iselse(skipwhite(l)))
{
/*
* Found an unterminated line after an if (), line up
* with the last one.
* if (cond)
* 100 +
* -> here;
*/
if (lookfor == LOOKFOR_UNTERM
|| lookfor == LOOKFOR_ENUM_OR_INIT)
{
if (cont_amount > 0)
amount = cont_amount;
else
amount += ind_continuation;
break;
}
/*
* If this is just above the line we are indenting, we
* are finished.
* while (not)
* -> here;
* Otherwise this indent can be used when the line
* before this is terminated.
* yyy;
* if (stat)
* while (not)
* xxx;
* -> here;
*/
amount = cur_amount;
if (theline[0] == '{')
amount += ind_open_extra;
if (lookfor != LOOKFOR_TERM)
{
amount += ind_level + ind_no_brace;
break;
}
/*
* Special trick: when expecting the while () after a
* do, line up with the while()
* do
* x = 1;
* -> here
*/
l = skipwhite(ml_get_curline());
if (cin_isdo(l))
{
if (whilelevel == 0)
break;
--whilelevel;
}
/*
* When searching for a terminated line, don't use the
* one between the "if" and the "else".
* Need to use the scope of this "else". XXX
* If whilelevel != 0 continue looking for a "do {".
*/
if (cin_iselse(l)
&& whilelevel == 0
&& ((trypos = find_start_brace(ind_maxcomment))
== NULL
|| find_match(LOOKFOR_IF, trypos->lnum,
ind_maxparen, ind_maxcomment) == FAIL))
break;
}
/*
* If we're below an unterminated line that is not an
* "if" or something, we may line up with this line or
* add something for a continuation line, depending on
* the line before this one.
*/
else
{
/*
* Found two unterminated lines on a row, line up with
* the last one.
* c = 99 +
* 100 +
* -> here;
*/
if (lookfor == LOOKFOR_UNTERM)
{
/* When line ends in a comma add extra indent */
if (terminated == ',')
amount += ind_continuation;
break;
}
if (lookfor == LOOKFOR_ENUM_OR_INIT)
{
/* Found two lines ending in ',', lineup with the
* lowest one, but check for cpp base class
* declaration/initialization, if it is an
* opening brace or we are looking just for
* enumerations/initializations. */
if (terminated == ',')
{
if (ind_cpp_baseclass == 0)
break;
lookfor = LOOKFOR_CPP_BASECLASS;
continue;
}
/* Ignore unterminated lines in between, but
* reduce indent. */
if (amount > cur_amount)
amount = cur_amount;
}
else
{
/*
* Found first unterminated line on a row, may
* line up with this line, remember its indent
* 100 +
* -> here;
*/
amount = cur_amount;
/*
* If previous line ends in ',', check whether we
* are in an initialization or enum
* struct xxx =
* {
* sizeof a,
* 124 };
* or a normal possible continuation line.
* but only, of no other statement has been found
* yet.
*/
if (lookfor == LOOKFOR_INITIAL && terminated == ',')
{
lookfor = LOOKFOR_ENUM_OR_INIT;
cont_amount = cin_first_id_amount();
}
else
{
if (lookfor == LOOKFOR_INITIAL
&& *l != NUL
&& l[STRLEN(l) - 1] == '\\')
/* XXX */
cont_amount = cin_get_equal_amount(
curwin->w_cursor.lnum);
if (lookfor != LOOKFOR_TERM)
lookfor = LOOKFOR_UNTERM;
}
}
}
}
/*
* Check if we are after a while (cond);
* If so: Ignore until the matching "do".
*/
/* XXX */
else if (cin_iswhileofdo_end(terminated, ind_maxparen,
ind_maxcomment))
{
/*
* Found an unterminated line after a while ();, line up
* with the last one.
* while (cond);
* 100 + <- line up with this one
* -> here;
*/
if (lookfor == LOOKFOR_UNTERM
|| lookfor == LOOKFOR_ENUM_OR_INIT)
{
if (cont_amount > 0)
amount = cont_amount;
else
amount += ind_continuation;
break;
}
if (whilelevel == 0)
{
lookfor = LOOKFOR_TERM;
amount = get_indent(); /* XXX */
if (theline[0] == '{')
amount += ind_open_extra;
}
++whilelevel;
}
/*
* We are after a "normal" statement.
* If we had another statement we can stop now and use the
* indent of that other statement.
* Otherwise the indent of the current statement may be used,
* search backwards for the next "normal" statement.
*/
else
{
/*
* Skip single break line, if before a switch label. It
* may be lined up with the case label.
*/
if (lookfor == LOOKFOR_NOBREAK
&& cin_isbreak(skipwhite(ml_get_curline())))
{
lookfor = LOOKFOR_ANY;
continue;
}
/*
* Handle "do {" line.
*/
if (whilelevel > 0)
{
l = cin_skipcomment(ml_get_curline());
if (cin_isdo(l))
{
amount = get_indent(); /* XXX */
--whilelevel;
continue;
}
}
/*
* Found a terminated line above an unterminated line. Add
* the amount for a continuation line.
* x = 1;
* y = foo +
* -> here;
* or
* int x = 1;
* int foo,
* -> here;
*/
if (lookfor == LOOKFOR_UNTERM
|| lookfor == LOOKFOR_ENUM_OR_INIT)
{
if (cont_amount > 0)
amount = cont_amount;
else
amount += ind_continuation;
break;
}
/*
* Found a terminated line above a terminated line or "if"
* etc. line. Use the amount of the line below us.
* x = 1; x = 1;
* if (asdf) y = 2;
* while (asdf) ->here;
* here;
* ->foo;
*/
if (lookfor == LOOKFOR_TERM)
{
if (!lookfor_break && whilelevel == 0)
break;
}
/*
* First line above the one we're indenting is terminated.
* To know what needs to be done look further backward for
* a terminated line.
*/
else
{
/*
* position the cursor over the rightmost paren, so
* that matching it will take us back to the start of
* the line. Helps for:
* func(asdr,
* asdfasdf);
* here;
*/
term_again:
l = ml_get_curline();
if (find_last_paren(l, '(', ')')
&& (trypos = find_match_paren(ind_maxparen,
ind_maxcomment)) != NULL)
{
/*
* Check if we are on a case label now. This is
* handled above.
* case xx: if ( asdf &&
* asdf)
*/
curwin->w_cursor.lnum = trypos->lnum;
l = ml_get_curline();
if (cin_iscase(l) || cin_isscopedecl(l))
{
++curwin->w_cursor.lnum;
continue;
}
}
/* When aligning with the case statement, don't align
* with a statement after it.
* case 1: { <-- don't use this { position
* stat;
* }
* case 2:
* stat;
* }
*/
iscase = (ind_keep_case_label && cin_iscase(l));
/*
* Get indent and pointer to text for current line,
* ignoring any jump label.
*/
amount = skip_label(curwin->w_cursor.lnum,
&l, ind_maxcomment);
if (theline[0] == '{')
amount += ind_open_extra;
/* See remark above: "Only add ind_open_extra.." */
l = skipwhite(l);
if (*l == '{')
amount -= ind_open_extra;
lookfor = iscase ? LOOKFOR_ANY : LOOKFOR_TERM;
/*
* When a terminated line starts with "else" skip to
* the matching "if":
* else 3;
* indent this;
* Need to use the scope of this "else". XXX
* If whilelevel != 0 continue looking for a "do {".
*/
if (lookfor == LOOKFOR_TERM
&& *l != '}'
&& cin_iselse(l)
&& whilelevel == 0)
{
if ((trypos = find_start_brace(ind_maxcomment))
== NULL
|| find_match(LOOKFOR_IF, trypos->lnum,
ind_maxparen, ind_maxcomment) == FAIL)
break;
continue;
}
/*
* If we're at the end of a block, skip to the start of
* that block.
*/
curwin->w_cursor.col = 0;
if (*cin_skipcomment(l) == '}'
&& (trypos = find_start_brace(ind_maxcomment))
!= NULL) /* XXX */
{
curwin->w_cursor.lnum = trypos->lnum;
/* if not "else {" check for terminated again */
/* but skip block for "} else {" */
l = cin_skipcomment(ml_get_curline());
if (*l == '}' || !cin_iselse(l))
goto term_again;
++curwin->w_cursor.lnum;
}
}
}
}
}
}
/* add extra indent for a comment */
if (cin_iscomment(theline))
amount += ind_comment;
}
/*
* ok -- we're not inside any sort of structure at all!
*
* this means we're at the top level, and everything should
* basically just match where the previous line is, except
* for the lines immediately following a function declaration,
* which are K&R-style parameters and need to be indented.
*/
else
{
/*
* if our line starts with an open brace, forget about any
* prevailing indent and make sure it looks like the start
* of a function
*/
if (theline[0] == '{')
{
amount = ind_first_open;
}
/*
* If the NEXT line is a function declaration, the current
* line needs to be indented as a function type spec.
* Don't do this if the current line looks like a comment
* or if the current line is terminated, ie. ends in ';'.
*/
else if (cur_curpos.lnum < curbuf->b_ml.ml_line_count
&& !cin_nocode(theline)
&& !cin_ends_in(theline, (char_u *)":", NULL)
&& !cin_ends_in(theline, (char_u *)",", NULL)
&& cin_isfuncdecl(NULL, cur_curpos.lnum + 1)
&& !cin_isterminated(theline, FALSE, TRUE))
{
amount = ind_func_type;
}
else
{
amount = 0;
curwin->w_cursor = cur_curpos;
/* search backwards until we find something we recognize */
while (curwin->w_cursor.lnum > 1)
{
curwin->w_cursor.lnum--;
curwin->w_cursor.col = 0;
l = ml_get_curline();
/*
* If we're in a comment now, skip to the start of the comment.
*/ /* XXX */
if ((trypos = find_start_comment(ind_maxcomment)) != NULL)
{
curwin->w_cursor.lnum = trypos->lnum + 1;
continue;
}
/*
* Are we at the start of a cpp base class declaration or
* constructor initialization?
*/ /* XXX */
n = FALSE;
if (ind_cpp_baseclass != 0 && theline[0] != '{')
{
n = cin_is_cpp_baseclass(l, &col);
l = ml_get_curline();
}
if (n)
{
/* XXX */
amount = get_baseclass_amount(col, ind_maxparen,
ind_maxcomment, ind_cpp_baseclass);
break;
}
/*
* Skip preprocessor directives and blank lines.
*/
if (cin_ispreproc_cont(&l, &curwin->w_cursor.lnum))
continue;
if (cin_nocode(l))
continue;
/*
* If the previous line ends in ',', use one level of
* indentation:
* int foo,
* bar;
* do this before checking for '}' in case of eg.
* enum foobar
* {
* ...
* } foo,
* bar;
*/
n = 0;
if (cin_ends_in(l, (char_u *)",", NULL)
|| (*l != NUL && (n = l[STRLEN(l) - 1]) == '\\'))
{
/* take us back to opening paren */
if (find_last_paren(l, '(', ')')
&& (trypos = find_match_paren(ind_maxparen,
ind_maxcomment)) != NULL)
curwin->w_cursor.lnum = trypos->lnum;
/* For a line ending in ',' that is a continuation line go
* back to the first line with a backslash:
* char *foo = "bla\
* bla",
* here;
*/
while (n == 0 && curwin->w_cursor.lnum > 1)
{
l = ml_get(curwin->w_cursor.lnum - 1);
if (*l == NUL || l[STRLEN(l) - 1] != '\\')
break;
--curwin->w_cursor.lnum;
}
amount = get_indent(); /* XXX */
if (amount == 0)
amount = cin_first_id_amount();
if (amount == 0)
amount = ind_continuation;
break;
}
/*
* If the line looks like a function declaration, and we're
* not in a comment, put it the left margin.
*/
if (cin_isfuncdecl(NULL, cur_curpos.lnum)) /* XXX */
break;
l = ml_get_curline();
/*
* Finding the closing '}' of a previous function. Put
* current line at the left margin. For when 'cino' has "fs".
*/
if (*skipwhite(l) == '}')
break;
/* (matching {)
* If the previous line ends on '};' (maybe followed by
* comments) align at column 0. For example:
* char *string_array[] = { "foo",
* / * x * / "b};ar" }; / * foobar * /
*/
if (cin_ends_in(l, (char_u *)"};", NULL))
break;
/*
* If the PREVIOUS line is a function declaration, the current
* line (and the ones that follow) needs to be indented as
* parameters.
*/
if (cin_isfuncdecl(&l, curwin->w_cursor.lnum))
{
amount = ind_param;
break;
}
/*
* If the previous line ends in ';' and the line before the
* previous line ends in ',' or '\', ident to column zero:
* int foo,
* bar;
* indent_to_0 here;
*/
if (cin_ends_in(l, (char_u *)";", NULL))
{
l = ml_get(curwin->w_cursor.lnum - 1);
if (cin_ends_in(l, (char_u *)",", NULL)
|| (*l != NUL && l[STRLEN(l) - 1] == '\\'))
break;
l = ml_get_curline();
}
/*
* Doesn't look like anything interesting -- so just
* use the indent of this line.
*
* Position the cursor over the rightmost paren, so that
* matching it will take us back to the start of the line.
*/
find_last_paren(l, '(', ')');
if ((trypos = find_match_paren(ind_maxparen,
ind_maxcomment)) != NULL)
curwin->w_cursor.lnum = trypos->lnum;
amount = get_indent(); /* XXX */
break;
}
/* add extra indent for a comment */
if (cin_iscomment(theline))
amount += ind_comment;
/* add extra indent if the previous line ended in a backslash:
* "asdfasdf\
* here";
* char *foo = "asdf\
* here";
*/
if (cur_curpos.lnum > 1)
{
l = ml_get(cur_curpos.lnum - 1);
if (*l != NUL && l[STRLEN(l) - 1] == '\\')
{
cur_amount = cin_get_equal_amount(cur_curpos.lnum - 1);
if (cur_amount > 0)
amount = cur_amount;
else if (cur_amount == 0)
amount += ind_continuation;
}
}
}
}
theend:
/* put the cursor back where it belongs */
curwin->w_cursor = cur_curpos;
vim_free(linecopy);
if (amount < 0)
return 0;
return amount;
}
static int
find_match(lookfor, ourscope, ind_maxparen, ind_maxcomment)
int lookfor;
linenr_T ourscope;
int ind_maxparen;
int ind_maxcomment;
{
char_u *look;
pos_T *theirscope;
char_u *mightbeif;
int elselevel;
int whilelevel;
if (lookfor == LOOKFOR_IF)
{
elselevel = 1;
whilelevel = 0;
}
else
{
elselevel = 0;
whilelevel = 1;
}
curwin->w_cursor.col = 0;
while (curwin->w_cursor.lnum > ourscope + 1)
{
curwin->w_cursor.lnum--;
curwin->w_cursor.col = 0;
look = cin_skipcomment(ml_get_curline());
if (cin_iselse(look)
|| cin_isif(look)
|| cin_isdo(look) /* XXX */
|| cin_iswhileofdo(look, curwin->w_cursor.lnum, ind_maxparen))
{
/*
* if we've gone outside the braces entirely,
* we must be out of scope...
*/
theirscope = find_start_brace(ind_maxcomment); /* XXX */
if (theirscope == NULL)
break;
/*
* and if the brace enclosing this is further
* back than the one enclosing the else, we're
* out of luck too.
*/
if (theirscope->lnum < ourscope)
break;
/*
* and if they're enclosed in a *deeper* brace,
* then we can ignore it because it's in a
* different scope...
*/
if (theirscope->lnum > ourscope)
continue;
/*
* if it was an "else" (that's not an "else if")
* then we need to go back to another if, so
* increment elselevel
*/
look = cin_skipcomment(ml_get_curline());
if (cin_iselse(look))
{
mightbeif = cin_skipcomment(look + 4);
if (!cin_isif(mightbeif))
++elselevel;
continue;
}
/*
* if it was a "while" then we need to go back to
* another "do", so increment whilelevel. XXX
*/
if (cin_iswhileofdo(look, curwin->w_cursor.lnum, ind_maxparen))
{
++whilelevel;
continue;
}
/* If it's an "if" decrement elselevel */
look = cin_skipcomment(ml_get_curline());
if (cin_isif(look))
{
elselevel--;
/*
* When looking for an "if" ignore "while"s that
* get in the way.
*/
if (elselevel == 0 && lookfor == LOOKFOR_IF)
whilelevel = 0;
}
/* If it's a "do" decrement whilelevel */
if (cin_isdo(look))
whilelevel--;
/*
* if we've used up all the elses, then
* this must be the if that we want!
* match the indent level of that if.
*/
if (elselevel <= 0 && whilelevel <= 0)
{
return OK;
}
}
}
return FAIL;
}
# if defined(FEAT_EVAL) || defined(PROTO)
/*
* Get indent level from 'indentexpr'.
*/
int
get_expr_indent()
{
int indent;
pos_T pos;
int save_State;
int use_sandbox = was_set_insecurely((char_u *)"indentexpr",
OPT_LOCAL);
pos = curwin->w_cursor;
set_vim_var_nr(VV_LNUM, curwin->w_cursor.lnum);
if (use_sandbox)
++sandbox;
++textlock;
indent = eval_to_number(curbuf->b_p_inde);
if (use_sandbox)
--sandbox;
--textlock;
/* Restore the cursor position so that 'indentexpr' doesn't need to.
* Pretend to be in Insert mode, allow cursor past end of line for "o"
* command. */
save_State = State;
State = INSERT;
curwin->w_cursor = pos;
check_cursor();
State = save_State;
/* If there is an error, just keep the current indent. */
if (indent < 0)
indent = get_indent();
return indent;
}
# endif
#endif /* FEAT_CINDENT */
#if defined(FEAT_LISP) || defined(PROTO)
static int lisp_match __ARGS((char_u *p));
static int
lisp_match(p)
char_u *p;
{
char_u buf[LSIZE];
int len;
char_u *word = p_lispwords;
while (*word != NUL)
{
(void)copy_option_part(&word, buf, LSIZE, ",");
len = (int)STRLEN(buf);
if (STRNCMP(buf, p, len) == 0 && p[len] == ' ')
return TRUE;
}
return FALSE;
}
/*
* When 'p' is present in 'cpoptions, a Vi compatible method is used.
* The incompatible newer method is quite a bit better at indenting
* code in lisp-like languages than the traditional one; it's still
* mostly heuristics however -- Dirk van Deun, [email protected]
*
* TODO:
* Findmatch() should be adapted for lisp, also to make showmatch
* work correctly: now (v5.3) it seems all C/C++ oriented:
* - it does not recognize the #\( and #\) notations as character literals
* - it doesn't know about comments starting with a semicolon
* - it incorrectly interprets '(' as a character literal
* All this messes up get_lisp_indent in some rare cases.
* Update from Sergey Khorev:
* I tried to fix the first two issues.
*/
int
get_lisp_indent()
{
pos_T *pos, realpos, paren;
int amount;
char_u *that;
colnr_T col;
colnr_T firsttry;
int parencount, quotecount;
int vi_lisp;
/* Set vi_lisp to use the vi-compatible method */
vi_lisp = (vim_strchr(p_cpo, CPO_LISP) != NULL);
realpos = curwin->w_cursor;
curwin->w_cursor.col = 0;
if ((pos = findmatch(NULL, '(')) == NULL)
pos = findmatch(NULL, '[');
else
{
paren = *pos;
pos = findmatch(NULL, '[');
if (pos == NULL || ltp(pos, &paren))
pos = &paren;
}
if (pos != NULL)
{
/* Extra trick: Take the indent of the first previous non-white
* line that is at the same () level. */
amount = -1;
parencount = 0;
while (--curwin->w_cursor.lnum >= pos->lnum)
{
if (linewhite(curwin->w_cursor.lnum))
continue;
for (that = ml_get_curline(); *that != NUL; ++that)
{
if (*that == ';')
{
while (*(that + 1) != NUL)
++that;
continue;
}
if (*that == '\\')
{
if (*(that + 1) != NUL)
++that;
continue;
}
if (*that == '"' && *(that + 1) != NUL)
{
while (*++that && *that != '"')
{
/* skipping escaped characters in the string */
if (*that == '\\')
{
if (*++that == NUL)
break;
if (that[1] == NUL)
{
++that;
break;
}
}
}
}
if (*that == '(' || *that == '[')
++parencount;
else if (*that == ')' || *that == ']')
--parencount;
}
if (parencount == 0)
{
amount = get_indent();
break;
}
}
if (amount == -1)
{
curwin->w_cursor.lnum = pos->lnum;
curwin->w_cursor.col = pos->col;
col = pos->col;
that = ml_get_curline();
if (vi_lisp && get_indent() == 0)
amount = 2;
else
{
amount = 0;
while (*that && col)
{
amount += lbr_chartabsize_adv(&that, (colnr_T)amount);
col--;
}
/*
* Some keywords require "body" indenting rules (the
* non-standard-lisp ones are Scheme special forms):
*
* (let ((a 1)) instead (let ((a 1))
* (...)) of (...))
*/
if (!vi_lisp && (*that == '(' || *that == '[')
&& lisp_match(that + 1))
amount += 2;
else
{
that++;
amount++;
firsttry = amount;
while (vim_iswhite(*that))
{
amount += lbr_chartabsize(that, (colnr_T)amount);
++that;
}
if (*that && *that != ';') /* not a comment line */
{
/* test *that != '(' to accomodate first let/do
* argument if it is more than one line */
if (!vi_lisp && *that != '(' && *that != '[')
firsttry++;
parencount = 0;
quotecount = 0;
if (vi_lisp
|| (*that != '"'
&& *that != '\''
&& *that != '#'
&& (*that < '0' || *that > '9')))
{
while (*that
&& (!vim_iswhite(*that)
|| quotecount
|| parencount)
&& (!((*that == '(' || *that == '[')
&& !quotecount
&& !parencount
&& vi_lisp)))
{
if (*that == '"')
quotecount = !quotecount;
if ((*that == '(' || *that == '[')
&& !quotecount)
++parencount;
if ((*that == ')' || *that == ']')
&& !quotecount)
--parencount;
if (*that == '\\' && *(that+1) != NUL)
amount += lbr_chartabsize_adv(&that,
(colnr_T)amount);
amount += lbr_chartabsize_adv(&that,
(colnr_T)amount);
}
}
while (vim_iswhite(*that))
{
amount += lbr_chartabsize(that, (colnr_T)amount);
that++;
}
if (!*that || *that == ';')
amount = firsttry;
}
}
}
}
}
else
amount = 0; /* no matching '(' or '[' found, use zero indent */
curwin->w_cursor = realpos;
return amount;
}
#endif /* FEAT_LISP */
void
prepare_to_exit()
{
#if defined(SIGHUP) && defined(SIG_IGN)
/* Ignore SIGHUP, because a dropped connection causes a read error, which
* makes Vim exit and then handling SIGHUP causes various reentrance
* problems. */
signal(SIGHUP, SIG_IGN);
#endif
#ifdef FEAT_GUI
if (gui.in_use)
{
gui.dying = TRUE;
out_trash(); /* trash any pending output */
}
else
#endif
{
windgoto((int)Rows - 1, 0);
/*
* Switch terminal mode back now, so messages end up on the "normal"
* screen (if there are two screens).
*/
settmode(TMODE_COOK);
#ifdef WIN3264
if (can_end_termcap_mode(FALSE) == TRUE)
#endif
stoptermcap();
out_flush();
}
}
/*
* Preserve files and exit.
* When called IObuff must contain a message.
*/
void
preserve_exit()
{
buf_T *buf;
prepare_to_exit();
/* Setting this will prevent free() calls. That avoids calling free()
* recursively when free() was invoked with a bad pointer. */
really_exiting = TRUE;
out_str(IObuff);
screen_start(); /* don't know where cursor is now */
out_flush();
ml_close_notmod(); /* close all not-modified buffers */
for (buf = firstbuf; buf != NULL; buf = buf->b_next)
{
if (buf->b_ml.ml_mfp != NULL && buf->b_ml.ml_mfp->mf_fname != NULL)
{
OUT_STR(_("Vim: preserving files...\n"));
screen_start(); /* don't know where cursor is now */
out_flush();
ml_sync_all(FALSE, FALSE); /* preserve all swap files */
break;
}
}
ml_close_all(FALSE); /* close all memfiles, without deleting */
OUT_STR(_("Vim: Finished.\n"));
getout(1);
}
/*
* return TRUE if "fname" exists.
*/
int
vim_fexists(fname)
char_u *fname;
{
struct stat st;
if (mch_stat((char *)fname, &st))
return FALSE;
return TRUE;
}
/*
* Check for CTRL-C pressed, but only once in a while.
* Should be used instead of ui_breakcheck() for functions that check for
* each line in the file. Calling ui_breakcheck() each time takes too much
* time, because it can be a system call.
*/
#ifndef BREAKCHECK_SKIP
# ifdef FEAT_GUI /* assume the GUI only runs on fast computers */
# define BREAKCHECK_SKIP 200
# else
# define BREAKCHECK_SKIP 32
# endif
#endif
static int breakcheck_count = 0;
void
line_breakcheck()
{
if (++breakcheck_count >= BREAKCHECK_SKIP)
{
breakcheck_count = 0;
ui_breakcheck();
}
}
/*
* Like line_breakcheck() but check 10 times less often.
*/
void
fast_breakcheck()
{
if (++breakcheck_count >= BREAKCHECK_SKIP * 10)
{
breakcheck_count = 0;
ui_breakcheck();
}
}
/*
* Expand wildcards. Calls gen_expand_wildcards() and removes files matching
* 'wildignore'.
* Returns OK or FAIL.
*/
int
expand_wildcards(num_pat, pat, num_file, file, flags)
int num_pat; /* number of input patterns */
char_u **pat; /* array of input patterns */
int *num_file; /* resulting number of files */
char_u ***file; /* array of resulting files */
int flags; /* EW_DIR, etc. */
{
int retval;
int i, j;
char_u *p;
int non_suf_match; /* number without matching suffix */
retval = gen_expand_wildcards(num_pat, pat, num_file, file, flags);
/* When keeping all matches, return here */
if (flags & EW_KEEPALL)
return retval;
#ifdef FEAT_WILDIGN
/*
* Remove names that match 'wildignore'.
*/
if (*p_wig)
{
char_u *ffname;
/* check all files in (*file)[] */
for (i = 0; i < *num_file; ++i)
{
ffname = FullName_save((*file)[i], FALSE);
if (ffname == NULL) /* out of memory */
break;
# ifdef VMS
vms_remove_version(ffname);
# endif
if (match_file_list(p_wig, (*file)[i], ffname))
{
/* remove this matching file from the list */
vim_free((*file)[i]);
for (j = i; j + 1 < *num_file; ++j)
(*file)[j] = (*file)[j + 1];
--*num_file;
--i;
}
vim_free(ffname);
}
}
#endif
/*
* Move the names where 'suffixes' match to the end.
*/
if (*num_file > 1)
{
non_suf_match = 0;
for (i = 0; i < *num_file; ++i)
{
if (!match_suffix((*file)[i]))
{
/*
* Move the name without matching suffix to the front
* of the list.
*/
p = (*file)[i];
for (j = i; j > non_suf_match; --j)
(*file)[j] = (*file)[j - 1];
(*file)[non_suf_match++] = p;
}
}
}
return retval;
}
/*
* Return TRUE if "fname" matches with an entry in 'suffixes'.
*/
int
match_suffix(fname)
char_u *fname;
{
int fnamelen, setsuflen;
char_u *setsuf;
#define MAXSUFLEN 30 /* maximum length of a file suffix */
char_u suf_buf[MAXSUFLEN];
fnamelen = (int)STRLEN(fname);
setsuflen = 0;
for (setsuf = p_su; *setsuf; )
{
setsuflen = copy_option_part(&setsuf, suf_buf, MAXSUFLEN, ".,");
if (fnamelen >= setsuflen
&& fnamencmp(suf_buf, fname + fnamelen - setsuflen,
(size_t)setsuflen) == 0)
break;
setsuflen = 0;
}
return (setsuflen != 0);
}
#if !defined(NO_EXPANDPATH) || defined(PROTO)
# ifdef VIM_BACKTICK
static int vim_backtick __ARGS((char_u *p));
static int expand_backtick __ARGS((garray_T *gap, char_u *pat, int flags));
# endif
# if defined(MSDOS) || defined(FEAT_GUI_W16) || defined(WIN3264)
/*
* File name expansion code for MS-DOS, Win16 and Win32. It's here because
* it's shared between these systems.
*/
# if defined(DJGPP) || defined(PROTO)
# define _cdecl /* DJGPP doesn't have this */
# else
# ifdef __BORLANDC__
# define _cdecl _RTLENTRYF
# endif
# endif
/*
* comparison function for qsort in dos_expandpath()
*/
static int _cdecl
pstrcmp(const void *a, const void *b)
{
return (pathcmp(*(char **)a, *(char **)b, -1));
}
# ifndef WIN3264
static void
namelowcpy(
char_u *d,
char_u *s)
{
# ifdef DJGPP
if (USE_LONG_FNAME) /* don't lower case on Windows 95/NT systems */
while (*s)
*d++ = *s++;
else
# endif
while (*s)
*d++ = TOLOWER_LOC(*s++);
*d = NUL;
}
# endif
/*
* Recursively expand one path component into all matching files and/or
* directories. Adds matches to "gap". Handles "*", "?", "[a-z]", "**", etc.
* Return the number of matches found.
* "path" has backslashes before chars that are not to be expanded, starting
* at "path[wildoff]".
* Return the number of matches found.
* NOTE: much of this is identical to unix_expandpath(), keep in sync!
*/
static int
dos_expandpath(
garray_T *gap,
char_u *path,
int wildoff,
int flags, /* EW_* flags */
int didstar) /* expanded "**" once already */
{
char_u *buf;
char_u *path_end;
char_u *p, *s, *e;
int start_len = gap->ga_len;
char_u *pat;
regmatch_T regmatch;
int starts_with_dot;
int matches;
int len;
int starstar = FALSE;
static int stardepth = 0; /* depth for "**" expansion */
#ifdef WIN3264
WIN32_FIND_DATA fb;
HANDLE hFind = (HANDLE)0;
# ifdef FEAT_MBYTE
WIN32_FIND_DATAW wfb;
WCHAR *wn = NULL; /* UCS-2 name, NULL when not used. */
# endif
#else
struct ffblk fb;
#endif
char_u *matchname;
int ok;
/* Expanding "**" may take a long time, check for CTRL-C. */
if (stardepth > 0)
{
ui_breakcheck();
if (got_int)
return 0;
}
/* make room for file name */
buf = alloc((int)STRLEN(path) + BASENAMELEN + 5);
if (buf == NULL)
return 0;
/*
* Find the first part in the path name that contains a wildcard or a ~1.
* Copy it into buf, including the preceding characters.
*/
p = buf;
s = buf;
e = NULL;
path_end = path;
while (*path_end != NUL)
{
/* May ignore a wildcard that has a backslash before it; it will
* be removed by rem_backslash() or file_pat_to_reg_pat() below. */
if (path_end >= path + wildoff && rem_backslash(path_end))
*p++ = *path_end++;
else if (*path_end == '\\' || *path_end == ':' || *path_end == '/')
{
if (e != NULL)
break;
s = p + 1;
}
else if (path_end >= path + wildoff
&& vim_strchr((char_u *)"*?[~", *path_end) != NULL)
e = p;
#ifdef FEAT_MBYTE
if (has_mbyte)
{
len = (*mb_ptr2len)(path_end);
STRNCPY(p, path_end, len);
p += len;
path_end += len;
}
else
#endif
*p++ = *path_end++;
}
e = p;
*e = NUL;
/* now we have one wildcard component between s and e */
/* Remove backslashes between "wildoff" and the start of the wildcard
* component. */
for (p = buf + wildoff; p < s; ++p)
if (rem_backslash(p))
{
STRCPY(p, p + 1);
--e;
--s;
}
/* Check for "**" between "s" and "e". */
for (p = s; p < e; ++p)
if (p[0] == '*' && p[1] == '*')
starstar = TRUE;
starts_with_dot = (*s == '.');
pat = file_pat_to_reg_pat(s, e, NULL, FALSE);
if (pat == NULL)
{
vim_free(buf);
return 0;
}
/* compile the regexp into a program */
regmatch.rm_ic = TRUE; /* Always ignore case */
regmatch.regprog = vim_regcomp(pat, RE_MAGIC);
vim_free(pat);
if (regmatch.regprog == NULL)
{
vim_free(buf);
return 0;
}
/* remember the pattern or file name being looked for */
matchname = vim_strsave(s);
/* If "**" is by itself, this is the first time we encounter it and more
* is following then find matches without any directory. */
if (!didstar && stardepth < 100 && starstar && e - s == 2
&& *path_end == '/')
{
STRCPY(s, path_end + 1);
++stardepth;
(void)dos_expandpath(gap, buf, (int)(s - buf), flags, TRUE);
--stardepth;
}
/* Scan all files in the directory with "dir/ *.*" */
STRCPY(s, "*.*");
#ifdef WIN3264
# ifdef FEAT_MBYTE
if (enc_codepage >= 0 && (int)GetACP() != enc_codepage)
{
/* The active codepage differs from 'encoding'. Attempt using the
* wide function. If it fails because it is not implemented fall back
* to the non-wide version (for Windows 98) */
wn = enc_to_ucs2(buf, NULL);
if (wn != NULL)
{
hFind = FindFirstFileW(wn, &wfb);
if (hFind == INVALID_HANDLE_VALUE
&& GetLastError() == ERROR_CALL_NOT_IMPLEMENTED)
{
vim_free(wn);
wn = NULL;
}
}
}
if (wn == NULL)
# endif
hFind = FindFirstFile(buf, &fb);
ok = (hFind != INVALID_HANDLE_VALUE);
#else
/* If we are expanding wildcards we try both files and directories */
ok = (findfirst((char *)buf, &fb,
(*path_end != NUL || (flags & EW_DIR)) ? FA_DIREC : 0) == 0);
#endif
while (ok)
{
#ifdef WIN3264
# ifdef FEAT_MBYTE
if (wn != NULL)
p = ucs2_to_enc(wfb.cFileName, NULL); /* p is allocated here */
else
# endif
p = (char_u *)fb.cFileName;
#else
p = (char_u *)fb.ff_name;
#endif
/* Ignore entries starting with a dot, unless when asked for. Accept
* all entries found with "matchname". */
if ((p[0] != '.' || starts_with_dot)
&& (matchname == NULL
|| vim_regexec(®match, p, (colnr_T)0)))
{
#ifdef WIN3264
STRCPY(s, p);
#else
namelowcpy(s, p);
#endif
len = (int)STRLEN(buf);
if (starstar && stardepth < 100)
{
/* For "**" in the pattern first go deeper in the tree to
* find matches. */
STRCPY(buf + len, "/**");
STRCPY(buf + len + 3, path_end);
++stardepth;
(void)dos_expandpath(gap, buf, len + 1, flags, TRUE);
--stardepth;
}
STRCPY(buf + len, path_end);
if (mch_has_exp_wildcard(path_end))
{
/* need to expand another component of the path */
/* remove backslashes for the remaining components only */
(void)dos_expandpath(gap, buf, len + 1, flags, FALSE);
}
else
{
/* no more wildcards, check if there is a match */
/* remove backslashes for the remaining components only */
if (*path_end != 0)
backslash_halve(buf + len + 1);
if (mch_getperm(buf) >= 0) /* add existing file */
addfile(gap, buf, flags);
}
}
#ifdef WIN3264
# ifdef FEAT_MBYTE
if (wn != NULL)
{
vim_free(p);
ok = FindNextFileW(hFind, &wfb);
}
else
# endif
ok = FindNextFile(hFind, &fb);
#else
ok = (findnext(&fb) == 0);
#endif
/* If no more matches and no match was used, try expanding the name
* itself. Finds the long name of a short filename. */
if (!ok && matchname != NULL && gap->ga_len == start_len)
{
STRCPY(s, matchname);
#ifdef WIN3264
FindClose(hFind);
# ifdef FEAT_MBYTE
if (wn != NULL)
{
vim_free(wn);
wn = enc_to_ucs2(buf, NULL);
if (wn != NULL)
hFind = FindFirstFileW(wn, &wfb);
}
if (wn == NULL)
# endif
hFind = FindFirstFile(buf, &fb);
ok = (hFind != INVALID_HANDLE_VALUE);
#else
ok = (findfirst((char *)buf, &fb,
(*path_end != NUL || (flags & EW_DIR)) ? FA_DIREC : 0) == 0);
#endif
vim_free(matchname);
matchname = NULL;
}
}
#ifdef WIN3264
FindClose(hFind);
# ifdef FEAT_MBYTE
vim_free(wn);
# endif
#endif
vim_free(buf);
vim_free(regmatch.regprog);
vim_free(matchname);
matches = gap->ga_len - start_len;
if (matches > 0)
qsort(((char_u **)gap->ga_data) + start_len, (size_t)matches,
sizeof(char_u *), pstrcmp);
return matches;
}
int
mch_expandpath(
garray_T *gap,
char_u *path,
int flags) /* EW_* flags */
{
return dos_expandpath(gap, path, 0, flags, FALSE);
}
# endif /* MSDOS || FEAT_GUI_W16 || WIN3264 */
#if (defined(UNIX) && !defined(VMS)) || defined(USE_UNIXFILENAME) \
|| defined(PROTO)
/*
* Unix style wildcard expansion code.
* It's here because it's used both for Unix and Mac.
*/
static int pstrcmp __ARGS((const void *, const void *));
static int
pstrcmp(a, b)
const void *a, *b;
{
return (pathcmp(*(char **)a, *(char **)b, -1));
}
/*
* Recursively expand one path component into all matching files and/or
* directories. Adds matches to "gap". Handles "*", "?", "[a-z]", "**", etc.
* "path" has backslashes before chars that are not to be expanded, starting
* at "path + wildoff".
* Return the number of matches found.
* NOTE: much of this is identical to dos_expandpath(), keep in sync!
*/
int
unix_expandpath(gap, path, wildoff, flags, didstar)
garray_T *gap;
char_u *path;
int wildoff;
int flags; /* EW_* flags */
int didstar; /* expanded "**" once already */
{
char_u *buf;
char_u *path_end;
char_u *p, *s, *e;
int start_len = gap->ga_len;
char_u *pat;
regmatch_T regmatch;
int starts_with_dot;
int matches;
int len;
int starstar = FALSE;
static int stardepth = 0; /* depth for "**" expansion */
DIR *dirp;
struct dirent *dp;
/* Expanding "**" may take a long time, check for CTRL-C. */
if (stardepth > 0)
{
ui_breakcheck();
if (got_int)
return 0;
}
/* make room for file name */
buf = alloc((int)STRLEN(path) + BASENAMELEN + 5);
if (buf == NULL)
return 0;
/*
* Find the first part in the path name that contains a wildcard.
* Copy it into "buf", including the preceding characters.
*/
p = buf;
s = buf;
e = NULL;
path_end = path;
while (*path_end != NUL)
{
/* May ignore a wildcard that has a backslash before it; it will
* be removed by rem_backslash() or file_pat_to_reg_pat() below. */
if (path_end >= path + wildoff && rem_backslash(path_end))
*p++ = *path_end++;
else if (*path_end == '/')
{
if (e != NULL)
break;
s = p + 1;
}
else if (path_end >= path + wildoff
&& vim_strchr((char_u *)"*?[{~$", *path_end) != NULL)
e = p;
#ifdef FEAT_MBYTE
if (has_mbyte)
{
len = (*mb_ptr2len)(path_end);
STRNCPY(p, path_end, len);
p += len;
path_end += len;
}
else
#endif
*p++ = *path_end++;
}
e = p;
*e = NUL;
/* now we have one wildcard component between "s" and "e" */
/* Remove backslashes between "wildoff" and the start of the wildcard
* component. */
for (p = buf + wildoff; p < s; ++p)
if (rem_backslash(p))
{
STRCPY(p, p + 1);
--e;
--s;
}
/* Check for "**" between "s" and "e". */
for (p = s; p < e; ++p)
if (p[0] == '*' && p[1] == '*')
starstar = TRUE;
/* convert the file pattern to a regexp pattern */
starts_with_dot = (*s == '.');
pat = file_pat_to_reg_pat(s, e, NULL, FALSE);
if (pat == NULL)
{
vim_free(buf);
return 0;
}
/* compile the regexp into a program */
#ifdef CASE_INSENSITIVE_FILENAME
regmatch.rm_ic = TRUE; /* Behave like Terminal.app */
#else
regmatch.rm_ic = FALSE; /* Don't ever ignore case */
#endif
regmatch.regprog = vim_regcomp(pat, RE_MAGIC);
vim_free(pat);
if (regmatch.regprog == NULL)
{
vim_free(buf);
return 0;
}
/* If "**" is by itself, this is the first time we encounter it and more
* is following then find matches without any directory. */
if (!didstar && stardepth < 100 && starstar && e - s == 2
&& *path_end == '/')
{
STRCPY(s, path_end + 1);
++stardepth;
(void)unix_expandpath(gap, buf, (int)(s - buf), flags, TRUE);
--stardepth;
}
/* open the directory for scanning */
*s = NUL;
dirp = opendir(*buf == NUL ? "." : (char *)buf);
/* Find all matching entries */
if (dirp != NULL)
{
for (;;)
{
dp = readdir(dirp);
if (dp == NULL)
break;
if ((dp->d_name[0] != '.' || starts_with_dot)
&& vim_regexec(®match, (char_u *)dp->d_name, (colnr_T)0))
{
STRCPY(s, dp->d_name);
len = STRLEN(buf);
if (starstar && stardepth < 100)
{
/* For "**" in the pattern first go deeper in the tree to
* find matches. */
STRCPY(buf + len, "/**");
STRCPY(buf + len + 3, path_end);
++stardepth;
(void)unix_expandpath(gap, buf, len + 1, flags, TRUE);
--stardepth;
}
STRCPY(buf + len, path_end);
if (mch_has_exp_wildcard(path_end)) /* handle more wildcards */
{
/* need to expand another component of the path */
/* remove backslashes for the remaining components only */
(void)unix_expandpath(gap, buf, len + 1, flags, FALSE);
}
else
{
/* no more wildcards, check if there is a match */
/* remove backslashes for the remaining components only */
if (*path_end != NUL)
backslash_halve(buf + len + 1);
if (mch_getperm(buf) >= 0) /* add existing file */
{
#ifdef MACOS_CONVERT
size_t precomp_len = STRLEN(buf)+1;
char_u *precomp_buf =
mac_precompose_path(buf, precomp_len, &precomp_len);
if (precomp_buf)
{
mch_memmove(buf, precomp_buf, precomp_len);
vim_free(precomp_buf);
}
#endif
addfile(gap, buf, flags);
}
}
}
}
closedir(dirp);
}
vim_free(buf);
vim_free(regmatch.regprog);
matches = gap->ga_len - start_len;
if (matches > 0)
qsort(((char_u **)gap->ga_data) + start_len, matches,
sizeof(char_u *), pstrcmp);
return matches;
}
#endif
/*
* Generic wildcard expansion code.
*
* Characters in "pat" that should not be expanded must be preceded with a
* backslash. E.g., "/path\ with\ spaces/my\*star*"
*
* Return FAIL when no single file was found. In this case "num_file" is not
* set, and "file" may contain an error message.
* Return OK when some files found. "num_file" is set to the number of
* matches, "file" to the array of matches. Call FreeWild() later.
*/
int
gen_expand_wildcards(num_pat, pat, num_file, file, flags)
int num_pat; /* number of input patterns */
char_u **pat; /* array of input patterns */
int *num_file; /* resulting number of files */
char_u ***file; /* array of resulting files */
int flags; /* EW_* flags */
{
int i;
garray_T ga;
char_u *p;
static int recursive = FALSE;
int add_pat;
/*
* expand_env() is called to expand things like "~user". If this fails,
* it calls ExpandOne(), which brings us back here. In this case, always
* call the machine specific expansion function, if possible. Otherwise,
* return FAIL.
*/
if (recursive)
#ifdef SPECIAL_WILDCHAR
return mch_expand_wildcards(num_pat, pat, num_file, file, flags);
#else
return FAIL;
#endif
#ifdef SPECIAL_WILDCHAR
/*
* If there are any special wildcard characters which we cannot handle
* here, call machine specific function for all the expansion. This
* avoids starting the shell for each argument separately.
* For `=expr` do use the internal function.
*/
for (i = 0; i < num_pat; i++)
{
if (vim_strpbrk(pat[i], (char_u *)SPECIAL_WILDCHAR) != NULL
# ifdef VIM_BACKTICK
&& !(vim_backtick(pat[i]) && pat[i][1] == '=')
# endif
)
return mch_expand_wildcards(num_pat, pat, num_file, file, flags);
}
#endif
recursive = TRUE;
/*
* The matching file names are stored in a growarray. Init it empty.
*/
ga_init2(&ga, (int)sizeof(char_u *), 30);
for (i = 0; i < num_pat; ++i)
{
add_pat = -1;
p = pat[i];
#ifdef VIM_BACKTICK
if (vim_backtick(p))
add_pat = expand_backtick(&ga, p, flags);
else
#endif
{
/*
* First expand environment variables, "~/" and "~user/".
*/
if (vim_strpbrk(p, (char_u *)"$~") != NULL)
{
p = expand_env_save(p);
if (p == NULL)
p = pat[i];
#ifdef UNIX
/*
* On Unix, if expand_env() can't expand an environment
* variable, use the shell to do that. Discard previously
* found file names and start all over again.
*/
else if (vim_strpbrk(p, (char_u *)"$~") != NULL)
{
vim_free(p);
ga_clear(&ga);
i = mch_expand_wildcards(num_pat, pat, num_file, file,
flags);
recursive = FALSE;
return i;
}
#endif
}
/*
* If there are wildcards: Expand file names and add each match to
* the list. If there is no match, and EW_NOTFOUND is given, add
* the pattern.
* If there are no wildcards: Add the file name if it exists or
* when EW_NOTFOUND is given.
*/
if (mch_has_exp_wildcard(p))
add_pat = mch_expandpath(&ga, p, flags);
}
if (add_pat == -1 || (add_pat == 0 && (flags & EW_NOTFOUND)))
{
char_u *t = backslash_halve_save(p);
#if defined(MACOS_CLASSIC)
slash_to_colon(t);
#endif
/* When EW_NOTFOUND is used, always add files and dirs. Makes
* "vim c:/" work. */
if (flags & EW_NOTFOUND)
addfile(&ga, t, flags | EW_DIR | EW_FILE);
else if (mch_getperm(t) >= 0)
addfile(&ga, t, flags);
vim_free(t);
}
if (p != pat[i])
vim_free(p);
}
*num_file = ga.ga_len;
*file = (ga.ga_data != NULL) ? (char_u **)ga.ga_data : (char_u **)"";
recursive = FALSE;
return (ga.ga_data != NULL) ? OK : FAIL;
}
# ifdef VIM_BACKTICK
/*
* Return TRUE if we can expand this backtick thing here.
*/
static int
vim_backtick(p)
char_u *p;
{
return (*p == '`' && *(p + 1) != NUL && *(p + STRLEN(p) - 1) == '`');
}
/*
* Expand an item in `backticks` by executing it as a command.
* Currently only works when pat[] starts and ends with a `.
* Returns number of file names found.
*/
static int
expand_backtick(gap, pat, flags)
garray_T *gap;
char_u *pat;
int flags; /* EW_* flags */
{
char_u *p;
char_u *cmd;
char_u *buffer;
int cnt = 0;
int i;
/* Create the command: lop off the backticks. */
cmd = vim_strnsave(pat + 1, (int)STRLEN(pat) - 2);
if (cmd == NULL)
return 0;
#ifdef FEAT_EVAL
if (*cmd == '=') /* `={expr}`: Expand expression */
buffer = eval_to_string(cmd + 1, &p, TRUE);
else
#endif
buffer = get_cmd_output(cmd, NULL,
(flags & EW_SILENT) ? SHELL_SILENT : 0);
vim_free(cmd);
if (buffer == NULL)
return 0;
cmd = buffer;
while (*cmd != NUL)
{
cmd = skipwhite(cmd); /* skip over white space */
p = cmd;
while (*p != NUL && *p != '\r' && *p != '\n') /* skip over entry */
++p;
/* add an entry if it is not empty */
if (p > cmd)
{
i = *p;
*p = NUL;
addfile(gap, cmd, flags);
*p = i;
++cnt;
}
cmd = p;
while (*cmd != NUL && (*cmd == '\r' || *cmd == '\n'))
++cmd;
}
vim_free(buffer);
return cnt;
}
# endif /* VIM_BACKTICK */
/*
* Add a file to a file list. Accepted flags:
* EW_DIR add directories
* EW_FILE add files
* EW_EXEC add executable files
* EW_NOTFOUND add even when it doesn't exist
* EW_ADDSLASH add slash after directory name
*/
void
addfile(gap, f, flags)
garray_T *gap;
char_u *f; /* filename */
int flags;
{
char_u *p;
int isdir;
/* if the file/dir doesn't exist, may not add it */
if (!(flags & EW_NOTFOUND) && mch_getperm(f) < 0)
return;
#ifdef FNAME_ILLEGAL
/* if the file/dir contains illegal characters, don't add it */
if (vim_strpbrk(f, (char_u *)FNAME_ILLEGAL) != NULL)
return;
#endif
isdir = mch_isdir(f);
if ((isdir && !(flags & EW_DIR)) || (!isdir && !(flags & EW_FILE)))
return;
/* If the file isn't executable, may not add it. Do accept directories. */
if (!isdir && (flags & EW_EXEC) && !mch_can_exe(f))
return;
/* Make room for another item in the file list. */
if (ga_grow(gap, 1) == FAIL)
return;
p = alloc((unsigned)(STRLEN(f) + 1 + isdir));
if (p == NULL)
return;
STRCPY(p, f);
#ifdef BACKSLASH_IN_FILENAME
slash_adjust(p);
#endif
/*
* Append a slash or backslash after directory names if none is present.
*/
#ifndef DONT_ADD_PATHSEP_TO_DIR
if (isdir && (flags & EW_ADDSLASH))
add_pathsep(p);
#endif
((char_u **)gap->ga_data)[gap->ga_len++] = p;
}
#endif /* !NO_EXPANDPATH */
#if defined(VIM_BACKTICK) || defined(FEAT_EVAL) || defined(PROTO)
#ifndef SEEK_SET
# define SEEK_SET 0
#endif
#ifndef SEEK_END
# define SEEK_END 2
#endif
/*
* Get the stdout of an external command.
* Returns an allocated string, or NULL for error.
*/
char_u *
get_cmd_output(cmd, infile, flags)
char_u *cmd;
char_u *infile; /* optional input file name */
int flags; /* can be SHELL_SILENT */
{
char_u *tempname;
char_u *command;
char_u *buffer = NULL;
int len;
int i = 0;
FILE *fd;
if (check_restricted() || check_secure())
return NULL;
/* get a name for the temp file */
if ((tempname = vim_tempname('o')) == NULL)
{
EMSG(_(e_notmp));
return NULL;
}
/* Add the redirection stuff */
command = make_filter_cmd(cmd, infile, tempname);
if (command == NULL)
goto done;
/*
* Call the shell to execute the command (errors are ignored).
* Don't check timestamps here.
*/
++no_check_timestamps;
call_shell(command, SHELL_DOOUT | SHELL_EXPAND | flags);
--no_check_timestamps;
vim_free(command);
/*
* read the names from the file into memory
*/
# ifdef VMS
/* created temporary file is not always readable as binary */
fd = mch_fopen((char *)tempname, "r");
# else
fd = mch_fopen((char *)tempname, READBIN);
# endif
if (fd == NULL)
{
EMSG2(_(e_notopen), tempname);
goto done;
}
fseek(fd, 0L, SEEK_END);
len = ftell(fd); /* get size of temp file */
fseek(fd, 0L, SEEK_SET);
buffer = alloc(len + 1);
if (buffer != NULL)
i = (int)fread((char *)buffer, (size_t)1, (size_t)len, fd);
fclose(fd);
mch_remove(tempname);
if (buffer == NULL)
goto done;
#ifdef VMS
len = i; /* VMS doesn't give us what we asked for... */
#endif
if (i != len)
{
EMSG2(_(e_notread), tempname);
vim_free(buffer);
buffer = NULL;
}
else
buffer[len] = '\0'; /* make sure the buffer is terminated */
done:
vim_free(tempname);
return buffer;
}
#endif
/*
* Free the list of files returned by expand_wildcards() or other expansion
* functions.
*/
void
FreeWild(count, files)
int count;
char_u **files;
{
if (count <= 0 || files == NULL)
return;
#if defined(__EMX__) && defined(__ALWAYS_HAS_TRAILING_NULL_POINTER) /* XXX */
/*
* Is this still OK for when other functions than expand_wildcards() have
* been used???
*/
_fnexplodefree((char **)files);
#else
while (count--)
vim_free(files[count]);
vim_free(files);
#endif
}
/*
* return TRUE when need to go to Insert mode because of 'insertmode'.
* Don't do this when still processing a command or a mapping.
* Don't do this when inside a ":normal" command.
*/
int
goto_im()
{
return (p_im && stuff_empty() && typebuf_typed());
}
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