summaryrefslogtreecommitdiffstats
path: root/src/search.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--src/search.c5751
1 files changed, 5751 insertions, 0 deletions
diff --git a/src/search.c b/src/search.c
new file mode 100644
index 0000000..4b3f853
--- /dev/null
+++ b/src/search.c
@@ -0,0 +1,5751 @@
+/* vi:set ts=8 sts=4 sw=4 noet:
+ *
+ * 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.
+ */
+/*
+ * search.c: code for normal mode searching commands
+ */
+
+#include "vim.h"
+
+#ifdef FEAT_EVAL
+static void set_vv_searchforward(void);
+static int first_submatch(regmmatch_T *rp);
+#endif
+static int check_linecomment(char_u *line);
+static int cls(void);
+static int skip_chars(int, int);
+#ifdef FEAT_FIND_ID
+static void show_pat_in_path(char_u *, int,
+ int, int, FILE *, linenr_T *, long);
+#endif
+#ifdef FEAT_VIMINFO
+static void wvsp_one(FILE *fp, int idx, char *s, int sc);
+#endif
+
+/*
+ * This file contains various searching-related routines. These fall into
+ * three groups:
+ * 1. string searches (for /, ?, n, and N)
+ * 2. character searches within a single line (for f, F, t, T, etc)
+ * 3. "other" kinds of searches like the '%' command, and 'word' searches.
+ */
+
+/*
+ * String searches
+ *
+ * The string search functions are divided into two levels:
+ * lowest: searchit(); uses an pos_T for starting position and found match.
+ * Highest: do_search(); uses curwin->w_cursor; calls searchit().
+ *
+ * The last search pattern is remembered for repeating the same search.
+ * This pattern is shared between the :g, :s, ? and / commands.
+ * This is in search_regcomp().
+ *
+ * The actual string matching is done using a heavily modified version of
+ * Henry Spencer's regular expression library. See regexp.c.
+ */
+
+/* The offset for a search command is store in a soff struct */
+/* Note: only spats[0].off is really used */
+struct soffset
+{
+ int dir; /* search direction, '/' or '?' */
+ int line; /* search has line offset */
+ int end; /* search set cursor at end */
+ long off; /* line or char offset */
+};
+
+/* A search pattern and its attributes are stored in a spat struct */
+struct spat
+{
+ char_u *pat; /* the pattern (in allocated memory) or NULL */
+ int magic; /* magicness of the pattern */
+ int no_scs; /* no smartcase for this pattern */
+ struct soffset off;
+};
+
+/*
+ * Two search patterns are remembered: One for the :substitute command and
+ * one for other searches. last_idx points to the one that was used the last
+ * time.
+ */
+static struct spat spats[2] =
+{
+ {NULL, TRUE, FALSE, {'/', 0, 0, 0L}}, /* last used search pat */
+ {NULL, TRUE, FALSE, {'/', 0, 0, 0L}} /* last used substitute pat */
+};
+
+static int last_idx = 0; /* index in spats[] for RE_LAST */
+
+static char_u lastc[2] = {NUL, NUL}; /* last character searched for */
+static int lastcdir = FORWARD; /* last direction of character search */
+static int last_t_cmd = TRUE; /* last search t_cmd */
+static char_u lastc_bytes[MB_MAXBYTES + 1];
+static int lastc_bytelen = 1; /* >1 for multi-byte char */
+
+/* copy of spats[], for keeping the search patterns while executing autocmds */
+static struct spat saved_spats[2];
+# ifdef FEAT_SEARCH_EXTRA
+static int saved_spats_last_idx = 0;
+static int saved_spats_no_hlsearch = 0;
+# endif
+
+static char_u *mr_pattern = NULL; /* pattern used by search_regcomp() */
+#ifdef FEAT_RIGHTLEFT
+static int mr_pattern_alloced = FALSE; /* mr_pattern was allocated */
+#endif
+
+#ifdef FEAT_FIND_ID
+/*
+ * Type used by find_pattern_in_path() to remember which included files have
+ * been searched already.
+ */
+typedef struct SearchedFile
+{
+ FILE *fp; /* File pointer */
+ char_u *name; /* Full name of file */
+ linenr_T lnum; /* Line we were up to in file */
+ int matched; /* Found a match in this file */
+} SearchedFile;
+#endif
+
+/*
+ * translate search pattern for vim_regcomp()
+ *
+ * pat_save == RE_SEARCH: save pat in spats[RE_SEARCH].pat (normal search cmd)
+ * pat_save == RE_SUBST: save pat in spats[RE_SUBST].pat (:substitute command)
+ * pat_save == RE_BOTH: save pat in both patterns (:global command)
+ * pat_use == RE_SEARCH: use previous search pattern if "pat" is NULL
+ * pat_use == RE_SUBST: use previous substitute pattern if "pat" is NULL
+ * pat_use == RE_LAST: use last used pattern if "pat" is NULL
+ * options & SEARCH_HIS: put search string in history
+ * options & SEARCH_KEEP: keep previous search pattern
+ *
+ * returns FAIL if failed, OK otherwise.
+ */
+ int
+search_regcomp(
+ char_u *pat,
+ int pat_save,
+ int pat_use,
+ int options,
+ regmmatch_T *regmatch) /* return: pattern and ignore-case flag */
+{
+ int magic;
+ int i;
+
+ rc_did_emsg = FALSE;
+ magic = p_magic;
+
+ /*
+ * If no pattern given, use a previously defined pattern.
+ */
+ if (pat == NULL || *pat == NUL)
+ {
+ if (pat_use == RE_LAST)
+ i = last_idx;
+ else
+ i = pat_use;
+ if (spats[i].pat == NULL) /* pattern was never defined */
+ {
+ if (pat_use == RE_SUBST)
+ emsg(_(e_nopresub));
+ else
+ emsg(_(e_noprevre));
+ rc_did_emsg = TRUE;
+ return FAIL;
+ }
+ pat = spats[i].pat;
+ magic = spats[i].magic;
+ no_smartcase = spats[i].no_scs;
+ }
+#ifdef FEAT_CMDHIST
+ else if (options & SEARCH_HIS) /* put new pattern in history */
+ add_to_history(HIST_SEARCH, pat, TRUE, NUL);
+#endif
+
+#ifdef FEAT_RIGHTLEFT
+ if (mr_pattern_alloced)
+ {
+ vim_free(mr_pattern);
+ mr_pattern_alloced = FALSE;
+ }
+
+ if (curwin->w_p_rl && *curwin->w_p_rlc == 's')
+ {
+ char_u *rev_pattern;
+
+ rev_pattern = reverse_text(pat);
+ if (rev_pattern == NULL)
+ mr_pattern = pat; /* out of memory, keep normal pattern. */
+ else
+ {
+ mr_pattern = rev_pattern;
+ mr_pattern_alloced = TRUE;
+ }
+ }
+ else
+#endif
+ mr_pattern = pat;
+
+ /*
+ * Save the currently used pattern in the appropriate place,
+ * unless the pattern should not be remembered.
+ */
+ if (!(options & SEARCH_KEEP) && !cmdmod.keeppatterns)
+ {
+ /* search or global command */
+ if (pat_save == RE_SEARCH || pat_save == RE_BOTH)
+ save_re_pat(RE_SEARCH, pat, magic);
+ /* substitute or global command */
+ if (pat_save == RE_SUBST || pat_save == RE_BOTH)
+ save_re_pat(RE_SUBST, pat, magic);
+ }
+
+ regmatch->rmm_ic = ignorecase(pat);
+ regmatch->rmm_maxcol = 0;
+ regmatch->regprog = vim_regcomp(pat, magic ? RE_MAGIC : 0);
+ if (regmatch->regprog == NULL)
+ return FAIL;
+ return OK;
+}
+
+/*
+ * Get search pattern used by search_regcomp().
+ */
+ char_u *
+get_search_pat(void)
+{
+ return mr_pattern;
+}
+
+#if defined(FEAT_RIGHTLEFT) || defined(PROTO)
+/*
+ * Reverse text into allocated memory.
+ * Returns the allocated string, NULL when out of memory.
+ */
+ char_u *
+reverse_text(char_u *s)
+{
+ unsigned len;
+ unsigned s_i, rev_i;
+ char_u *rev;
+
+ /*
+ * Reverse the pattern.
+ */
+ len = (unsigned)STRLEN(s);
+ rev = alloc(len + 1);
+ if (rev != NULL)
+ {
+ rev_i = len;
+ for (s_i = 0; s_i < len; ++s_i)
+ {
+ if (has_mbyte)
+ {
+ int mb_len;
+
+ mb_len = (*mb_ptr2len)(s + s_i);
+ rev_i -= mb_len;
+ mch_memmove(rev + rev_i, s + s_i, mb_len);
+ s_i += mb_len - 1;
+ }
+ else
+ rev[--rev_i] = s[s_i];
+
+ }
+ rev[len] = NUL;
+ }
+ return rev;
+}
+#endif
+
+ void
+save_re_pat(int idx, char_u *pat, int magic)
+{
+ if (spats[idx].pat != pat)
+ {
+ vim_free(spats[idx].pat);
+ spats[idx].pat = vim_strsave(pat);
+ spats[idx].magic = magic;
+ spats[idx].no_scs = no_smartcase;
+ last_idx = idx;
+#ifdef FEAT_SEARCH_EXTRA
+ /* If 'hlsearch' set and search pat changed: need redraw. */
+ if (p_hls)
+ redraw_all_later(SOME_VALID);
+ set_no_hlsearch(FALSE);
+#endif
+ }
+}
+
+/*
+ * Save the search patterns, so they can be restored later.
+ * Used before/after executing autocommands and user functions.
+ */
+static int save_level = 0;
+
+ void
+save_search_patterns(void)
+{
+ if (save_level++ == 0)
+ {
+ saved_spats[0] = spats[0];
+ if (spats[0].pat != NULL)
+ saved_spats[0].pat = vim_strsave(spats[0].pat);
+ saved_spats[1] = spats[1];
+ if (spats[1].pat != NULL)
+ saved_spats[1].pat = vim_strsave(spats[1].pat);
+#ifdef FEAT_SEARCH_EXTRA
+ saved_spats_last_idx = last_idx;
+ saved_spats_no_hlsearch = no_hlsearch;
+#endif
+ }
+}
+
+ void
+restore_search_patterns(void)
+{
+ if (--save_level == 0)
+ {
+ vim_free(spats[0].pat);
+ spats[0] = saved_spats[0];
+#if defined(FEAT_EVAL)
+ set_vv_searchforward();
+#endif
+ vim_free(spats[1].pat);
+ spats[1] = saved_spats[1];
+#ifdef FEAT_SEARCH_EXTRA
+ last_idx = saved_spats_last_idx;
+ set_no_hlsearch(saved_spats_no_hlsearch);
+#endif
+ }
+}
+
+#if defined(EXITFREE) || defined(PROTO)
+ void
+free_search_patterns(void)
+{
+ vim_free(spats[0].pat);
+ vim_free(spats[1].pat);
+
+# ifdef FEAT_RIGHTLEFT
+ if (mr_pattern_alloced)
+ {
+ vim_free(mr_pattern);
+ mr_pattern_alloced = FALSE;
+ mr_pattern = NULL;
+ }
+# endif
+}
+#endif
+
+#ifdef FEAT_SEARCH_EXTRA
+// copy of spats[RE_SEARCH], for keeping the search patterns while incremental
+// searching
+static struct spat saved_last_search_spat;
+static int did_save_last_search_spat = 0;
+static int saved_last_idx = 0;
+static int saved_no_hlsearch = 0;
+
+/*
+ * Save and restore the search pattern for incremental highlight search
+ * feature.
+ *
+ * It's similar to but different from save_search_patterns() and
+ * restore_search_patterns(), because the search pattern must be restored when
+ * canceling incremental searching even if it's called inside user functions.
+ */
+ void
+save_last_search_pattern(void)
+{
+ if (did_save_last_search_spat != 0)
+ iemsg("did_save_last_search_spat is not zero");
+ else
+ ++did_save_last_search_spat;
+
+ saved_last_search_spat = spats[RE_SEARCH];
+ if (spats[RE_SEARCH].pat != NULL)
+ saved_last_search_spat.pat = vim_strsave(spats[RE_SEARCH].pat);
+ saved_last_idx = last_idx;
+ saved_no_hlsearch = no_hlsearch;
+}
+
+ void
+restore_last_search_pattern(void)
+{
+ if (did_save_last_search_spat != 1)
+ {
+ iemsg("did_save_last_search_spat is not one");
+ return;
+ }
+ --did_save_last_search_spat;
+
+ vim_free(spats[RE_SEARCH].pat);
+ spats[RE_SEARCH] = saved_last_search_spat;
+ saved_last_search_spat.pat = NULL;
+# if defined(FEAT_EVAL)
+ set_vv_searchforward();
+# endif
+ last_idx = saved_last_idx;
+ set_no_hlsearch(saved_no_hlsearch);
+}
+
+ char_u *
+last_search_pattern(void)
+{
+ return spats[RE_SEARCH].pat;
+}
+#endif
+
+/*
+ * Return TRUE when case should be ignored for search pattern "pat".
+ * Uses the 'ignorecase' and 'smartcase' options.
+ */
+ int
+ignorecase(char_u *pat)
+{
+ return ignorecase_opt(pat, p_ic, p_scs);
+}
+
+/*
+ * As ignorecase() put pass the "ic" and "scs" flags.
+ */
+ int
+ignorecase_opt(char_u *pat, int ic_in, int scs)
+{
+ int ic = ic_in;
+
+ if (ic && !no_smartcase && scs
+#ifdef FEAT_INS_EXPAND
+ && !(ctrl_x_mode_not_default() && curbuf->b_p_inf)
+#endif
+ )
+ ic = !pat_has_uppercase(pat);
+ no_smartcase = FALSE;
+
+ return ic;
+}
+
+/*
+ * Return TRUE if pattern "pat" has an uppercase character.
+ */
+ int
+pat_has_uppercase(char_u *pat)
+{
+ char_u *p = pat;
+
+ while (*p != NUL)
+ {
+ int l;
+
+ if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1)
+ {
+ if (enc_utf8 && utf_isupper(utf_ptr2char(p)))
+ return TRUE;
+ p += l;
+ }
+ else if (*p == '\\')
+ {
+ if (p[1] == '_' && p[2] != NUL) /* skip "\_X" */
+ p += 3;
+ else if (p[1] == '%' && p[2] != NUL) /* skip "\%X" */
+ p += 3;
+ else if (p[1] != NUL) /* skip "\X" */
+ p += 2;
+ else
+ p += 1;
+ }
+ else if (MB_ISUPPER(*p))
+ return TRUE;
+ else
+ ++p;
+ }
+ return FALSE;
+}
+
+#if defined(FEAT_EVAL) || defined(PROTO)
+ char_u *
+last_csearch(void)
+{
+ return lastc_bytes;
+}
+
+ int
+last_csearch_forward(void)
+{
+ return lastcdir == FORWARD;
+}
+
+ int
+last_csearch_until(void)
+{
+ return last_t_cmd == TRUE;
+}
+
+ void
+set_last_csearch(int c, char_u *s UNUSED, int len UNUSED)
+{
+ *lastc = c;
+ lastc_bytelen = len;
+ if (len)
+ memcpy(lastc_bytes, s, len);
+ else
+ vim_memset(lastc_bytes, 0, sizeof(lastc_bytes));
+}
+#endif
+
+ void
+set_csearch_direction(int cdir)
+{
+ lastcdir = cdir;
+}
+
+ void
+set_csearch_until(int t_cmd)
+{
+ last_t_cmd = t_cmd;
+}
+
+ char_u *
+last_search_pat(void)
+{
+ return spats[last_idx].pat;
+}
+
+/*
+ * Reset search direction to forward. For "gd" and "gD" commands.
+ */
+ void
+reset_search_dir(void)
+{
+ spats[0].off.dir = '/';
+#if defined(FEAT_EVAL)
+ set_vv_searchforward();
+#endif
+}
+
+#if defined(FEAT_EVAL) || defined(FEAT_VIMINFO)
+/*
+ * Set the last search pattern. For ":let @/ =" and viminfo.
+ * Also set the saved search pattern, so that this works in an autocommand.
+ */
+ void
+set_last_search_pat(
+ char_u *s,
+ int idx,
+ int magic,
+ int setlast)
+{
+ vim_free(spats[idx].pat);
+ /* An empty string means that nothing should be matched. */
+ if (*s == NUL)
+ spats[idx].pat = NULL;
+ else
+ spats[idx].pat = vim_strsave(s);
+ spats[idx].magic = magic;
+ spats[idx].no_scs = FALSE;
+ spats[idx].off.dir = '/';
+#if defined(FEAT_EVAL)
+ set_vv_searchforward();
+#endif
+ spats[idx].off.line = FALSE;
+ spats[idx].off.end = FALSE;
+ spats[idx].off.off = 0;
+ if (setlast)
+ last_idx = idx;
+ if (save_level)
+ {
+ vim_free(saved_spats[idx].pat);
+ saved_spats[idx] = spats[0];
+ if (spats[idx].pat == NULL)
+ saved_spats[idx].pat = NULL;
+ else
+ saved_spats[idx].pat = vim_strsave(spats[idx].pat);
+ saved_spats_last_idx = last_idx;
+ }
+# ifdef FEAT_SEARCH_EXTRA
+ /* If 'hlsearch' set and search pat changed: need redraw. */
+ if (p_hls && idx == last_idx && !no_hlsearch)
+ redraw_all_later(SOME_VALID);
+# endif
+}
+#endif
+
+#ifdef FEAT_SEARCH_EXTRA
+/*
+ * Get a regexp program for the last used search pattern.
+ * This is used for highlighting all matches in a window.
+ * Values returned in regmatch->regprog and regmatch->rmm_ic.
+ */
+ void
+last_pat_prog(regmmatch_T *regmatch)
+{
+ if (spats[last_idx].pat == NULL)
+ {
+ regmatch->regprog = NULL;
+ return;
+ }
+ ++emsg_off; /* So it doesn't beep if bad expr */
+ (void)search_regcomp((char_u *)"", 0, last_idx, SEARCH_KEEP, regmatch);
+ --emsg_off;
+}
+#endif
+
+/*
+ * Lowest level search function.
+ * Search for 'count'th occurrence of pattern "pat" in direction "dir".
+ * Start at position "pos" and return the found position in "pos".
+ *
+ * if (options & SEARCH_MSG) == 0 don't give any messages
+ * if (options & SEARCH_MSG) == SEARCH_NFMSG don't give 'notfound' messages
+ * if (options & SEARCH_MSG) == SEARCH_MSG give all messages
+ * if (options & SEARCH_HIS) put search pattern in history
+ * if (options & SEARCH_END) return position at end of match
+ * if (options & SEARCH_START) accept match at pos itself
+ * if (options & SEARCH_KEEP) keep previous search pattern
+ * if (options & SEARCH_FOLD) match only once in a closed fold
+ * if (options & SEARCH_PEEK) check for typed char, cancel search
+ * if (options & SEARCH_COL) start at pos->col instead of zero
+ *
+ * Return FAIL (zero) for failure, non-zero for success.
+ * When FEAT_EVAL is defined, returns the index of the first matching
+ * subpattern plus one; one if there was none.
+ */
+ int
+searchit(
+ win_T *win, /* window to search in; can be NULL for a
+ buffer without a window! */
+ buf_T *buf,
+ pos_T *pos,
+ pos_T *end_pos, // set to end of the match, unless NULL
+ int dir,
+ char_u *pat,
+ long count,
+ int options,
+ int pat_use, /* which pattern to use when "pat" is empty */
+ linenr_T stop_lnum, /* stop after this line number when != 0 */
+ proftime_T *tm UNUSED, /* timeout limit or NULL */
+ int *timed_out UNUSED) /* set when timed out or NULL */
+{
+ int found;
+ linenr_T lnum; /* no init to shut up Apollo cc */
+ colnr_T col;
+ regmmatch_T regmatch;
+ char_u *ptr;
+ colnr_T matchcol;
+ lpos_T endpos;
+ lpos_T matchpos;
+ int loop;
+ pos_T start_pos;
+ int at_first_line;
+ int extra_col;
+ int start_char_len;
+ int match_ok;
+ long nmatched;
+ int submatch = 0;
+ int first_match = TRUE;
+ int save_called_emsg = called_emsg;
+#ifdef FEAT_SEARCH_EXTRA
+ int break_loop = FALSE;
+#endif
+
+ if (search_regcomp(pat, RE_SEARCH, pat_use,
+ (options & (SEARCH_HIS + SEARCH_KEEP)), &regmatch) == FAIL)
+ {
+ if ((options & SEARCH_MSG) && !rc_did_emsg)
+ semsg(_("E383: Invalid search string: %s"), mr_pattern);
+ return FAIL;
+ }
+
+ /*
+ * find the string
+ */
+ called_emsg = FALSE;
+ do /* loop for count */
+ {
+ /* When not accepting a match at the start position set "extra_col" to
+ * a non-zero value. Don't do that when starting at MAXCOL, since
+ * MAXCOL + 1 is zero. */
+ if (pos->col == MAXCOL)
+ start_char_len = 0;
+ /* Watch out for the "col" being MAXCOL - 2, used in a closed fold. */
+ else if (has_mbyte
+ && pos->lnum >= 1 && pos->lnum <= buf->b_ml.ml_line_count
+ && pos->col < MAXCOL - 2)
+ {
+ ptr = ml_get_buf(buf, pos->lnum, FALSE);
+ if ((int)STRLEN(ptr) <= pos->col)
+ start_char_len = 1;
+ else
+ start_char_len = (*mb_ptr2len)(ptr + pos->col);
+ }
+ else
+ start_char_len = 1;
+ if (dir == FORWARD)
+ {
+ if (options & SEARCH_START)
+ extra_col = 0;
+ else
+ extra_col = start_char_len;
+ }
+ else
+ {
+ if (options & SEARCH_START)
+ extra_col = start_char_len;
+ else
+ extra_col = 0;
+ }
+
+ start_pos = *pos; /* remember start pos for detecting no match */
+ found = 0; /* default: not found */
+ at_first_line = TRUE; /* default: start in first line */
+ if (pos->lnum == 0) /* correct lnum for when starting in line 0 */
+ {
+ pos->lnum = 1;
+ pos->col = 0;
+ at_first_line = FALSE; /* not in first line now */
+ }
+
+ /*
+ * Start searching in current line, unless searching backwards and
+ * we're in column 0.
+ * If we are searching backwards, in column 0, and not including the
+ * current position, gain some efficiency by skipping back a line.
+ * Otherwise begin the search in the current line.
+ */
+ if (dir == BACKWARD && start_pos.col == 0
+ && (options & SEARCH_START) == 0)
+ {
+ lnum = pos->lnum - 1;
+ at_first_line = FALSE;
+ }
+ else
+ lnum = pos->lnum;
+
+ for (loop = 0; loop <= 1; ++loop) /* loop twice if 'wrapscan' set */
+ {
+ for ( ; lnum > 0 && lnum <= buf->b_ml.ml_line_count;
+ lnum += dir, at_first_line = FALSE)
+ {
+ /* Stop after checking "stop_lnum", if it's set. */
+ if (stop_lnum != 0 && (dir == FORWARD
+ ? lnum > stop_lnum : lnum < stop_lnum))
+ break;
+#ifdef FEAT_RELTIME
+ /* Stop after passing the "tm" time limit. */
+ if (tm != NULL && profile_passed_limit(tm))
+ break;
+#endif
+
+ /*
+ * Look for a match somewhere in line "lnum".
+ */
+ col = at_first_line && (options & SEARCH_COL) ? pos->col
+ : (colnr_T)0;
+ nmatched = vim_regexec_multi(&regmatch, win, buf,
+ lnum, col,
+#ifdef FEAT_RELTIME
+ tm, timed_out
+#else
+ NULL, NULL
+#endif
+ );
+ /* Abort searching on an error (e.g., out of stack). */
+ if (called_emsg
+#ifdef FEAT_RELTIME
+ || (timed_out != NULL && *timed_out)
+#endif
+ )
+ break;
+ if (nmatched > 0)
+ {
+ /* match may actually be in another line when using \zs */
+ matchpos = regmatch.startpos[0];
+ endpos = regmatch.endpos[0];
+#ifdef FEAT_EVAL
+ submatch = first_submatch(&regmatch);
+#endif
+ /* "lnum" may be past end of buffer for "\n\zs". */
+ if (lnum + matchpos.lnum > buf->b_ml.ml_line_count)
+ ptr = (char_u *)"";
+ else
+ ptr = ml_get_buf(buf, lnum + matchpos.lnum, FALSE);
+
+ /*
+ * Forward search in the first line: match should be after
+ * the start position. If not, continue at the end of the
+ * match (this is vi compatible) or on the next char.
+ */
+ if (dir == FORWARD && at_first_line)
+ {
+ match_ok = TRUE;
+ /*
+ * When the match starts in a next line it's certainly
+ * past the start position.
+ * When match lands on a NUL the cursor will be put
+ * one back afterwards, compare with that position,
+ * otherwise "/$" will get stuck on end of line.
+ */
+ while (matchpos.lnum == 0
+ && ((options & SEARCH_END) && first_match
+ ? (nmatched == 1
+ && (int)endpos.col - 1
+ < (int)start_pos.col + extra_col)
+ : ((int)matchpos.col
+ - (ptr[matchpos.col] == NUL)
+ < (int)start_pos.col + extra_col)))
+ {
+ /*
+ * If vi-compatible searching, continue at the end
+ * of the match, otherwise continue one position
+ * forward.
+ */
+ if (vim_strchr(p_cpo, CPO_SEARCH) != NULL)
+ {
+ if (nmatched > 1)
+ {
+ /* end is in next line, thus no match in
+ * this line */
+ match_ok = FALSE;
+ break;
+ }
+ matchcol = endpos.col;
+ /* for empty match: advance one char */
+ if (matchcol == matchpos.col
+ && ptr[matchcol] != NUL)
+ {
+ if (has_mbyte)
+ matchcol +=
+ (*mb_ptr2len)(ptr + matchcol);
+ else
+ ++matchcol;
+ }
+ }
+ else
+ {
+ matchcol = matchpos.col;
+ if (ptr[matchcol] != NUL)
+ {
+ if (has_mbyte)
+ matchcol += (*mb_ptr2len)(ptr
+ + matchcol);
+ else
+ ++matchcol;
+ }
+ }
+ if (matchcol == 0 && (options & SEARCH_START))
+ break;
+ if (ptr[matchcol] == NUL
+ || (nmatched = vim_regexec_multi(&regmatch,
+ win, buf, lnum + matchpos.lnum,
+ matchcol,
+#ifdef FEAT_RELTIME
+ tm, timed_out
+#else
+ NULL, NULL
+#endif
+ )) == 0)
+ {
+ match_ok = FALSE;
+ break;
+ }
+ matchpos = regmatch.startpos[0];
+ endpos = regmatch.endpos[0];
+# ifdef FEAT_EVAL
+ submatch = first_submatch(&regmatch);
+# endif
+
+ /* Need to get the line pointer again, a
+ * multi-line search may have made it invalid. */
+ ptr = ml_get_buf(buf, lnum + matchpos.lnum, FALSE);
+ }
+ if (!match_ok)
+ continue;
+ }
+ if (dir == BACKWARD)
+ {
+ /*
+ * Now, if there are multiple matches on this line,
+ * we have to get the last one. Or the last one before
+ * the cursor, if we're on that line.
+ * When putting the new cursor at the end, compare
+ * relative to the end of the match.
+ */
+ match_ok = FALSE;
+ for (;;)
+ {
+ /* Remember a position that is before the start
+ * position, we use it if it's the last match in
+ * the line. Always accept a position after
+ * wrapping around. */
+ if (loop
+ || ((options & SEARCH_END)
+ ? (lnum + regmatch.endpos[0].lnum
+ < start_pos.lnum
+ || (lnum + regmatch.endpos[0].lnum
+ == start_pos.lnum
+ && (int)regmatch.endpos[0].col - 1
+ < (int)start_pos.col
+ + extra_col))
+ : (lnum + regmatch.startpos[0].lnum
+ < start_pos.lnum
+ || (lnum + regmatch.startpos[0].lnum
+ == start_pos.lnum
+ && (int)regmatch.startpos[0].col
+ < (int)start_pos.col
+ + extra_col))))
+ {
+ match_ok = TRUE;
+ matchpos = regmatch.startpos[0];
+ endpos = regmatch.endpos[0];
+# ifdef FEAT_EVAL
+ submatch = first_submatch(&regmatch);
+# endif
+ }
+ else
+ break;
+
+ /*
+ * We found a valid match, now check if there is
+ * another one after it.
+ * If vi-compatible searching, continue at the end
+ * of the match, otherwise continue one position
+ * forward.
+ */
+ if (vim_strchr(p_cpo, CPO_SEARCH) != NULL)
+ {
+ if (nmatched > 1)
+ break;
+ matchcol = endpos.col;
+ /* for empty match: advance one char */
+ if (matchcol == matchpos.col
+ && ptr[matchcol] != NUL)
+ {
+ if (has_mbyte)
+ matchcol +=
+ (*mb_ptr2len)(ptr + matchcol);
+ else
+ ++matchcol;
+ }
+ }
+ else
+ {
+ /* Stop when the match is in a next line. */
+ if (matchpos.lnum > 0)
+ break;
+ matchcol = matchpos.col;
+ if (ptr[matchcol] != NUL)
+ {
+ if (has_mbyte)
+ matchcol +=
+ (*mb_ptr2len)(ptr + matchcol);
+ else
+ ++matchcol;
+ }
+ }
+ if (ptr[matchcol] == NUL
+ || (nmatched = vim_regexec_multi(&regmatch,
+ win, buf, lnum + matchpos.lnum,
+ matchcol,
+#ifdef FEAT_RELTIME
+ tm, timed_out
+#else
+ NULL, NULL
+#endif
+ )) == 0)
+ {
+#ifdef FEAT_RELTIME
+ /* If the search timed out, we did find a match
+ * but it might be the wrong one, so that's not
+ * OK. */
+ if (timed_out != NULL && *timed_out)
+ match_ok = FALSE;
+#endif
+ break;
+ }
+
+ /* Need to get the line pointer again, a
+ * multi-line search may have made it invalid. */
+ ptr = ml_get_buf(buf, lnum + matchpos.lnum, FALSE);
+ }
+
+ /*
+ * If there is only a match after the cursor, skip
+ * this match.
+ */
+ if (!match_ok)
+ continue;
+ }
+
+ /* With the SEARCH_END option move to the last character
+ * of the match. Don't do it for an empty match, end
+ * should be same as start then. */
+ if ((options & SEARCH_END) && !(options & SEARCH_NOOF)
+ && !(matchpos.lnum == endpos.lnum
+ && matchpos.col == endpos.col))
+ {
+ /* For a match in the first column, set the position
+ * on the NUL in the previous line. */
+ pos->lnum = lnum + endpos.lnum;
+ pos->col = endpos.col;
+ if (endpos.col == 0)
+ {
+ if (pos->lnum > 1) /* just in case */
+ {
+ --pos->lnum;
+ pos->col = (colnr_T)STRLEN(ml_get_buf(buf,
+ pos->lnum, FALSE));
+ }
+ }
+ else
+ {
+ --pos->col;
+ if (has_mbyte
+ && pos->lnum <= buf->b_ml.ml_line_count)
+ {
+ ptr = ml_get_buf(buf, pos->lnum, FALSE);
+ pos->col -= (*mb_head_off)(ptr, ptr + pos->col);
+ }
+ }
+ if (end_pos != NULL)
+ {
+ end_pos->lnum = lnum + matchpos.lnum;
+ end_pos->col = matchpos.col;
+ }
+ }
+ else
+ {
+ pos->lnum = lnum + matchpos.lnum;
+ pos->col = matchpos.col;
+ if (end_pos != NULL)
+ {
+ end_pos->lnum = lnum + endpos.lnum;
+ end_pos->col = endpos.col;
+ }
+ }
+ pos->coladd = 0;
+ if (end_pos != NULL)
+ end_pos->coladd = 0;
+ found = 1;
+ first_match = FALSE;
+
+ /* Set variables used for 'incsearch' highlighting. */
+ search_match_lines = endpos.lnum - matchpos.lnum;
+ search_match_endcol = endpos.col;
+ break;
+ }
+ line_breakcheck(); /* stop if ctrl-C typed */
+ if (got_int)
+ break;
+
+#ifdef FEAT_SEARCH_EXTRA
+ /* Cancel searching if a character was typed. Used for
+ * 'incsearch'. Don't check too often, that would slowdown
+ * searching too much. */
+ if ((options & SEARCH_PEEK)
+ && ((lnum - pos->lnum) & 0x3f) == 0
+ && char_avail())
+ {
+ break_loop = TRUE;
+ break;
+ }
+#endif
+
+ if (loop && lnum == start_pos.lnum)
+ break; /* if second loop, stop where started */
+ }
+ at_first_line = FALSE;
+
+ /*
+ * Stop the search if wrapscan isn't set, "stop_lnum" is
+ * specified, after an interrupt, after a match and after looping
+ * twice.
+ */
+ if (!p_ws || stop_lnum != 0 || got_int || called_emsg
+#ifdef FEAT_RELTIME
+ || (timed_out != NULL && *timed_out)
+#endif
+#ifdef FEAT_SEARCH_EXTRA
+ || break_loop
+#endif
+ || found || loop)
+ break;
+
+ /*
+ * If 'wrapscan' is set we continue at the other end of the file.
+ * If 'shortmess' does not contain 's', we give a message.
+ * This message is also remembered in keep_msg for when the screen
+ * is redrawn. The keep_msg is cleared whenever another message is
+ * written.
+ */
+ if (dir == BACKWARD) /* start second loop at the other end */
+ lnum = buf->b_ml.ml_line_count;
+ else
+ lnum = 1;
+ if (!shortmess(SHM_SEARCH) && (options & SEARCH_MSG))
+ give_warning((char_u *)_(dir == BACKWARD
+ ? top_bot_msg : bot_top_msg), TRUE);
+ }
+ if (got_int || called_emsg
+#ifdef FEAT_RELTIME
+ || (timed_out != NULL && *timed_out)
+#endif
+#ifdef FEAT_SEARCH_EXTRA
+ || break_loop
+#endif
+ )
+ break;
+ }
+ while (--count > 0 && found); /* stop after count matches or no match */
+
+ vim_regfree(regmatch.regprog);
+
+ called_emsg |= save_called_emsg;
+
+ if (!found) /* did not find it */
+ {
+ if (got_int)
+ emsg(_(e_interr));
+ else if ((options & SEARCH_MSG) == SEARCH_MSG)
+ {
+ if (p_ws)
+ semsg(_(e_patnotf2), mr_pattern);
+ else if (lnum == 0)
+ semsg(_("E384: search hit TOP without match for: %s"),
+ mr_pattern);
+ else
+ semsg(_("E385: search hit BOTTOM without match for: %s"),
+ mr_pattern);
+ }
+ return FAIL;
+ }
+
+ /* A pattern like "\n\zs" may go past the last line. */
+ if (pos->lnum > buf->b_ml.ml_line_count)
+ {
+ pos->lnum = buf->b_ml.ml_line_count;
+ pos->col = (int)STRLEN(ml_get_buf(buf, pos->lnum, FALSE));
+ if (pos->col > 0)
+ --pos->col;
+ }
+
+ return submatch + 1;
+}
+
+#ifdef FEAT_EVAL
+ void
+set_search_direction(int cdir)
+{
+ spats[0].off.dir = cdir;
+}
+
+ static void
+set_vv_searchforward(void)
+{
+ set_vim_var_nr(VV_SEARCHFORWARD, (long)(spats[0].off.dir == '/'));
+}
+
+/*
+ * Return the number of the first subpat that matched.
+ * Return zero if none of them matched.
+ */
+ static int
+first_submatch(regmmatch_T *rp)
+{
+ int submatch;
+
+ for (submatch = 1; ; ++submatch)
+ {
+ if (rp->startpos[submatch].lnum >= 0)
+ break;
+ if (submatch == 9)
+ {
+ submatch = 0;
+ break;
+ }
+ }
+ return submatch;
+}
+#endif
+
+/*
+ * Highest level string search function.
+ * Search for the 'count'th occurrence of pattern 'pat' in direction 'dirc'
+ * If 'dirc' is 0: use previous dir.
+ * If 'pat' is NULL or empty : use previous string.
+ * If 'options & SEARCH_REV' : go in reverse of previous dir.
+ * If 'options & SEARCH_ECHO': echo the search command and handle options
+ * If 'options & SEARCH_MSG' : may give error message
+ * If 'options & SEARCH_OPT' : interpret optional flags
+ * If 'options & SEARCH_HIS' : put search pattern in history
+ * If 'options & SEARCH_NOOF': don't add offset to position
+ * If 'options & SEARCH_MARK': set previous context mark
+ * If 'options & SEARCH_KEEP': keep previous search pattern
+ * If 'options & SEARCH_START': accept match at curpos itself
+ * If 'options & SEARCH_PEEK': check for typed char, cancel search
+ *
+ * Careful: If spats[0].off.line == TRUE and spats[0].off.off == 0 this
+ * makes the movement linewise without moving the match position.
+ *
+ * Return 0 for failure, 1 for found, 2 for found and line offset added.
+ */
+ int
+do_search(
+ oparg_T *oap, /* can be NULL */
+ int dirc, /* '/' or '?' */
+ char_u *pat,
+ long count,
+ int options,
+ proftime_T *tm, /* timeout limit or NULL */
+ int *timed_out) /* flag set on timeout or NULL */
+{
+ pos_T pos; /* position of the last match */
+ char_u *searchstr;
+ struct soffset old_off;
+ int retval; /* Return value */
+ char_u *p;
+ long c;
+ char_u *dircp;
+ char_u *strcopy = NULL;
+ char_u *ps;
+
+ /*
+ * A line offset is not remembered, this is vi compatible.
+ */
+ if (spats[0].off.line && vim_strchr(p_cpo, CPO_LINEOFF) != NULL)
+ {
+ spats[0].off.line = FALSE;
+ spats[0].off.off = 0;
+ }
+
+ /*
+ * Save the values for when (options & SEARCH_KEEP) is used.
+ * (there is no "if ()" around this because gcc wants them initialized)
+ */
+ old_off = spats[0].off;
+
+ pos = curwin->w_cursor; /* start searching at the cursor position */
+
+ /*
+ * Find out the direction of the search.
+ */
+ if (dirc == 0)
+ dirc = spats[0].off.dir;
+ else
+ {
+ spats[0].off.dir = dirc;
+#if defined(FEAT_EVAL)
+ set_vv_searchforward();
+#endif
+ }
+ if (options & SEARCH_REV)
+ {
+#ifdef WIN32
+ /* There is a bug in the Visual C++ 2.2 compiler which means that
+ * dirc always ends up being '/' */
+ dirc = (dirc == '/') ? '?' : '/';
+#else
+ if (dirc == '/')
+ dirc = '?';
+ else
+ dirc = '/';
+#endif
+ }
+
+#ifdef FEAT_FOLDING
+ /* If the cursor is in a closed fold, don't find another match in the same
+ * fold. */
+ if (dirc == '/')
+ {
+ if (hasFolding(pos.lnum, NULL, &pos.lnum))
+ pos.col = MAXCOL - 2; /* avoid overflow when adding 1 */
+ }
+ else
+ {
+ if (hasFolding(pos.lnum, &pos.lnum, NULL))
+ pos.col = 0;
+ }
+#endif
+
+#ifdef FEAT_SEARCH_EXTRA
+ /*
+ * Turn 'hlsearch' highlighting back on.
+ */
+ if (no_hlsearch && !(options & SEARCH_KEEP))
+ {
+ redraw_all_later(SOME_VALID);
+ set_no_hlsearch(FALSE);
+ }
+#endif
+
+ /*
+ * Repeat the search when pattern followed by ';', e.g. "/foo/;?bar".
+ */
+ for (;;)
+ {
+ searchstr = pat;
+ dircp = NULL;
+ /* use previous pattern */
+ if (pat == NULL || *pat == NUL || *pat == dirc)
+ {
+ if (spats[RE_SEARCH].pat == NULL) /* no previous pattern */
+ {
+ searchstr = spats[RE_SUBST].pat;
+ if (searchstr == NULL)
+ {
+ emsg(_(e_noprevre));
+ retval = 0;
+ goto end_do_search;
+ }
+ }
+ else
+ {
+ /* make search_regcomp() use spats[RE_SEARCH].pat */
+ searchstr = (char_u *)"";
+ }
+ }
+
+ if (pat != NULL && *pat != NUL) /* look for (new) offset */
+ {
+ /*
+ * Find end of regular expression.
+ * If there is a matching '/' or '?', toss it.
+ */
+ ps = strcopy;
+ p = skip_regexp(pat, dirc, (int)p_magic, &strcopy);
+ if (strcopy != ps)
+ {
+ /* made a copy of "pat" to change "\?" to "?" */
+ searchcmdlen += (int)(STRLEN(pat) - STRLEN(strcopy));
+ pat = strcopy;
+ searchstr = strcopy;
+ }
+ if (*p == dirc)
+ {
+ dircp = p; /* remember where we put the NUL */
+ *p++ = NUL;
+ }
+ spats[0].off.line = FALSE;
+ spats[0].off.end = FALSE;
+ spats[0].off.off = 0;
+ /*
+ * Check for a line offset or a character offset.
+ * For get_address (echo off) we don't check for a character
+ * offset, because it is meaningless and the 's' could be a
+ * substitute command.
+ */
+ if (*p == '+' || *p == '-' || VIM_ISDIGIT(*p))
+ spats[0].off.line = TRUE;
+ else if ((options & SEARCH_OPT) &&
+ (*p == 'e' || *p == 's' || *p == 'b'))
+ {
+ if (*p == 'e') /* end */
+ spats[0].off.end = SEARCH_END;
+ ++p;
+ }
+ if (VIM_ISDIGIT(*p) || *p == '+' || *p == '-') /* got an offset */
+ {
+ /* 'nr' or '+nr' or '-nr' */
+ if (VIM_ISDIGIT(*p) || VIM_ISDIGIT(*(p + 1)))
+ spats[0].off.off = atol((char *)p);
+ else if (*p == '-') /* single '-' */
+ spats[0].off.off = -1;
+ else /* single '+' */
+ spats[0].off.off = 1;
+ ++p;
+ while (VIM_ISDIGIT(*p)) /* skip number */
+ ++p;
+ }
+
+ /* compute length of search command for get_address() */
+ searchcmdlen += (int)(p - pat);
+
+ pat = p; /* put pat after search command */
+ }
+
+ if ((options & SEARCH_ECHO) && messaging()
+ && !cmd_silent && msg_silent == 0)
+ {
+ char_u *msgbuf;
+ char_u *trunc;
+
+ if (*searchstr == NUL)
+ p = spats[0].pat;
+ else
+ p = searchstr;
+ msgbuf = alloc((unsigned)(STRLEN(p) + 40));
+ if (msgbuf != NULL)
+ {
+ msgbuf[0] = dirc;
+ if (enc_utf8 && utf_iscomposing(utf_ptr2char(p)))
+ {
+ /* Use a space to draw the composing char on. */
+ msgbuf[1] = ' ';
+ STRCPY(msgbuf + 2, p);
+ }
+ else
+ STRCPY(msgbuf + 1, p);
+ if (spats[0].off.line || spats[0].off.end || spats[0].off.off)
+ {
+ p = msgbuf + STRLEN(msgbuf);
+ *p++ = dirc;
+ if (spats[0].off.end)
+ *p++ = 'e';
+ else if (!spats[0].off.line)
+ *p++ = 's';
+ if (spats[0].off.off > 0 || spats[0].off.line)
+ *p++ = '+';
+ if (spats[0].off.off != 0 || spats[0].off.line)
+ sprintf((char *)p, "%ld", spats[0].off.off);
+ else
+ *p = NUL;
+ }
+
+ msg_start();
+ trunc = msg_strtrunc(msgbuf, FALSE);
+
+#ifdef FEAT_RIGHTLEFT
+ /* The search pattern could be shown on the right in rightleft
+ * mode, but the 'ruler' and 'showcmd' area use it too, thus
+ * it would be blanked out again very soon. Show it on the
+ * left, but do reverse the text. */
+ if (curwin->w_p_rl && *curwin->w_p_rlc == 's')
+ {
+ char_u *r;
+
+ r = reverse_text(trunc != NULL ? trunc : msgbuf);
+ if (r != NULL)
+ {
+ vim_free(trunc);
+ trunc = r;
+ }
+ }
+#endif
+ if (trunc != NULL)
+ {
+ msg_outtrans(trunc);
+ vim_free(trunc);
+ }
+ else
+ msg_outtrans(msgbuf);
+ msg_clr_eos();
+ msg_check();
+ vim_free(msgbuf);
+
+ gotocmdline(FALSE);
+ out_flush();
+ msg_nowait = TRUE; /* don't wait for this message */
+ }
+ }
+
+ /*
+ * If there is a character offset, subtract it from the current
+ * position, so we don't get stuck at "?pat?e+2" or "/pat/s-2".
+ * Skip this if pos.col is near MAXCOL (closed fold).
+ * This is not done for a line offset, because then we would not be vi
+ * compatible.
+ */
+ if (!spats[0].off.line && spats[0].off.off && pos.col < MAXCOL - 2)
+ {
+ if (spats[0].off.off > 0)
+ {
+ for (c = spats[0].off.off; c; --c)
+ if (decl(&pos) == -1)
+ break;
+ if (c) /* at start of buffer */
+ {
+ pos.lnum = 0; /* allow lnum == 0 here */
+ pos.col = MAXCOL;
+ }
+ }
+ else
+ {
+ for (c = spats[0].off.off; c; ++c)
+ if (incl(&pos) == -1)
+ break;
+ if (c) /* at end of buffer */
+ {
+ pos.lnum = curbuf->b_ml.ml_line_count + 1;
+ pos.col = 0;
+ }
+ }
+ }
+
+#ifdef FEAT_FKMAP /* when in Farsi mode, reverse the character flow */
+ if (p_altkeymap && curwin->w_p_rl)
+ lrFswap(searchstr,0);
+#endif
+
+ c = searchit(curwin, curbuf, &pos, NULL, dirc == '/' ? FORWARD : BACKWARD,
+ searchstr, count, spats[0].off.end + (options &
+ (SEARCH_KEEP + SEARCH_PEEK + SEARCH_HIS
+ + SEARCH_MSG + SEARCH_START
+ + ((pat != NULL && *pat == ';') ? 0 : SEARCH_NOOF))),
+ RE_LAST, (linenr_T)0, tm, timed_out);
+
+ if (dircp != NULL)
+ *dircp = dirc; /* restore second '/' or '?' for normal_cmd() */
+ if (c == FAIL)
+ {
+ retval = 0;
+ goto end_do_search;
+ }
+ if (spats[0].off.end && oap != NULL)
+ oap->inclusive = TRUE; /* 'e' includes last character */
+
+ retval = 1; /* pattern found */
+
+ /*
+ * Add character and/or line offset
+ */
+ if (!(options & SEARCH_NOOF) || (pat != NULL && *pat == ';'))
+ {
+ if (spats[0].off.line) /* Add the offset to the line number. */
+ {
+ c = pos.lnum + spats[0].off.off;
+ if (c < 1)
+ pos.lnum = 1;
+ else if (c > curbuf->b_ml.ml_line_count)
+ pos.lnum = curbuf->b_ml.ml_line_count;
+ else
+ pos.lnum = c;
+ pos.col = 0;
+
+ retval = 2; /* pattern found, line offset added */
+ }
+ else if (pos.col < MAXCOL - 2) /* just in case */
+ {
+ /* to the right, check for end of file */
+ c = spats[0].off.off;
+ if (c > 0)
+ {
+ while (c-- > 0)
+ if (incl(&pos) == -1)
+ break;
+ }
+ /* to the left, check for start of file */
+ else
+ {
+ while (c++ < 0)
+ if (decl(&pos) == -1)
+ break;
+ }
+ }
+ }
+
+ /*
+ * The search command can be followed by a ';' to do another search.
+ * For example: "/pat/;/foo/+3;?bar"
+ * This is like doing another search command, except:
+ * - The remembered direction '/' or '?' is from the first search.
+ * - When an error happens the cursor isn't moved at all.
+ * Don't do this when called by get_address() (it handles ';' itself).
+ */
+ if (!(options & SEARCH_OPT) || pat == NULL || *pat != ';')
+ break;
+
+ dirc = *++pat;
+ if (dirc != '?' && dirc != '/')
+ {
+ retval = 0;
+ emsg(_("E386: Expected '?' or '/' after ';'"));
+ goto end_do_search;
+ }
+ ++pat;
+ }
+
+ if (options & SEARCH_MARK)
+ setpcmark();
+ curwin->w_cursor = pos;
+ curwin->w_set_curswant = TRUE;
+
+end_do_search:
+ if ((options & SEARCH_KEEP) || cmdmod.keeppatterns)
+ spats[0].off = old_off;
+ vim_free(strcopy);
+
+ return retval;
+}
+
+#if defined(FEAT_INS_EXPAND) || defined(PROTO)
+/*
+ * search_for_exact_line(buf, pos, dir, pat)
+ *
+ * Search for a line starting with the given pattern (ignoring leading
+ * white-space), starting from pos and going in direction "dir". "pos" will
+ * contain the position of the match found. Blank lines match only if
+ * ADDING is set. If p_ic is set then the pattern must be in lowercase.
+ * Return OK for success, or FAIL if no line found.
+ */
+ int
+search_for_exact_line(
+ buf_T *buf,
+ pos_T *pos,
+ int dir,
+ char_u *pat)
+{
+ linenr_T start = 0;
+ char_u *ptr;
+ char_u *p;
+
+ if (buf->b_ml.ml_line_count == 0)
+ return FAIL;
+ for (;;)
+ {
+ pos->lnum += dir;
+ if (pos->lnum < 1)
+ {
+ if (p_ws)
+ {
+ pos->lnum = buf->b_ml.ml_line_count;
+ if (!shortmess(SHM_SEARCH))
+ give_warning((char_u *)_(top_bot_msg), TRUE);
+ }
+ else
+ {
+ pos->lnum = 1;
+ break;
+ }
+ }
+ else if (pos->lnum > buf->b_ml.ml_line_count)
+ {
+ if (p_ws)
+ {
+ pos->lnum = 1;
+ if (!shortmess(SHM_SEARCH))
+ give_warning((char_u *)_(bot_top_msg), TRUE);
+ }
+ else
+ {
+ pos->lnum = 1;
+ break;
+ }
+ }
+ if (pos->lnum == start)
+ break;
+ if (start == 0)
+ start = pos->lnum;
+ ptr = ml_get_buf(buf, pos->lnum, FALSE);
+ p = skipwhite(ptr);
+ pos->col = (colnr_T) (p - ptr);
+
+ /* when adding lines the matching line may be empty but it is not
+ * ignored because we are interested in the next line -- Acevedo */
+ if ((compl_cont_status & CONT_ADDING)
+ && !(compl_cont_status & CONT_SOL))
+ {
+ if ((p_ic ? MB_STRICMP(p, pat) : STRCMP(p, pat)) == 0)
+ return OK;
+ }
+ else if (*p != NUL) /* ignore empty lines */
+ { /* expanding lines or words */
+ if ((p_ic ? MB_STRNICMP(p, pat, compl_length)
+ : STRNCMP(p, pat, compl_length)) == 0)
+ return OK;
+ }
+ }
+ return FAIL;
+}
+#endif /* FEAT_INS_EXPAND */
+
+/*
+ * Character Searches
+ */
+
+/*
+ * Search for a character in a line. If "t_cmd" is FALSE, move to the
+ * position of the character, otherwise move to just before the char.
+ * Do this "cap->count1" times.
+ * Return FAIL or OK.
+ */
+ int
+searchc(cmdarg_T *cap, int t_cmd)
+{
+ int c = cap->nchar; /* char to search for */
+ int dir = cap->arg; /* TRUE for searching forward */
+ long count = cap->count1; /* repeat count */
+ int col;
+ char_u *p;
+ int len;
+ int stop = TRUE;
+
+ if (c != NUL) /* normal search: remember args for repeat */
+ {
+ if (!KeyStuffed) /* don't remember when redoing */
+ {
+ *lastc = c;
+ set_csearch_direction(dir);
+ set_csearch_until(t_cmd);
+ lastc_bytelen = (*mb_char2bytes)(c, lastc_bytes);
+ if (cap->ncharC1 != 0)
+ {
+ lastc_bytelen += (*mb_char2bytes)(cap->ncharC1,
+ lastc_bytes + lastc_bytelen);
+ if (cap->ncharC2 != 0)
+ lastc_bytelen += (*mb_char2bytes)(cap->ncharC2,
+ lastc_bytes + lastc_bytelen);
+ }
+ }
+ }
+ else /* repeat previous search */
+ {
+ if (*lastc == NUL && lastc_bytelen == 1)
+ return FAIL;
+ if (dir) /* repeat in opposite direction */
+ dir = -lastcdir;
+ else
+ dir = lastcdir;
+ t_cmd = last_t_cmd;
+ c = *lastc;
+ /* For multi-byte re-use last lastc_bytes[] and lastc_bytelen. */
+
+ /* Force a move of at least one char, so ";" and "," will move the
+ * cursor, even if the cursor is right in front of char we are looking
+ * at. */
+ if (vim_strchr(p_cpo, CPO_SCOLON) == NULL && count == 1 && t_cmd)
+ stop = FALSE;
+ }
+
+ if (dir == BACKWARD)
+ cap->oap->inclusive = FALSE;
+ else
+ cap->oap->inclusive = TRUE;
+
+ p = ml_get_curline();
+ col = curwin->w_cursor.col;
+ len = (int)STRLEN(p);
+
+ while (count--)
+ {
+ if (has_mbyte)
+ {
+ for (;;)
+ {
+ if (dir > 0)
+ {
+ col += (*mb_ptr2len)(p + col);
+ if (col >= len)
+ return FAIL;
+ }
+ else
+ {
+ if (col == 0)
+ return FAIL;
+ col -= (*mb_head_off)(p, p + col - 1) + 1;
+ }
+ if (lastc_bytelen == 1)
+ {
+ if (p[col] == c && stop)
+ break;
+ }
+ else if (STRNCMP(p + col, lastc_bytes, lastc_bytelen) == 0
+ && stop)
+ break;
+ stop = TRUE;
+ }
+ }
+ else
+ {
+ for (;;)
+ {
+ if ((col += dir) < 0 || col >= len)
+ return FAIL;
+ if (p[col] == c && stop)
+ break;
+ stop = TRUE;
+ }
+ }
+ }
+
+ if (t_cmd)
+ {
+ /* backup to before the character (possibly double-byte) */
+ col -= dir;
+ if (has_mbyte)
+ {
+ if (dir < 0)
+ /* Landed on the search char which is lastc_bytelen long */
+ col += lastc_bytelen - 1;
+ else
+ /* To previous char, which may be multi-byte. */
+ col -= (*mb_head_off)(p, p + col);
+ }
+ }
+ curwin->w_cursor.col = col;
+
+ return OK;
+}
+
+/*
+ * "Other" Searches
+ */
+
+/*
+ * findmatch - find the matching paren or brace
+ *
+ * Improvement over vi: Braces inside quotes are ignored.
+ */
+ pos_T *
+findmatch(oparg_T *oap, int initc)
+{
+ return findmatchlimit(oap, initc, 0, 0);
+}
+
+/*
+ * Return TRUE if the character before "linep[col]" equals "ch".
+ * Return FALSE if "col" is zero.
+ * Update "*prevcol" to the column of the previous character, unless "prevcol"
+ * is NULL.
+ * Handles multibyte string correctly.
+ */
+ static int
+check_prevcol(
+ char_u *linep,
+ int col,
+ int ch,
+ int *prevcol)
+{
+ --col;
+ if (col > 0 && has_mbyte)
+ col -= (*mb_head_off)(linep, linep + col);
+ if (prevcol)
+ *prevcol = col;
+ return (col >= 0 && linep[col] == ch) ? TRUE : FALSE;
+}
+
+/*
+ * Raw string start is found at linep[startpos.col - 1].
+ * Return TRUE if the matching end can be found between startpos and endpos.
+ */
+ static int
+find_rawstring_end(char_u *linep, pos_T *startpos, pos_T *endpos)
+{
+ char_u *p;
+ char_u *delim_copy;
+ size_t delim_len;
+ linenr_T lnum;
+ int found = FALSE;
+
+ for (p = linep + startpos->col + 1; *p && *p != '('; ++p)
+ ;
+ delim_len = (p - linep) - startpos->col - 1;
+ delim_copy = vim_strnsave(linep + startpos->col + 1, (int)delim_len);
+ if (delim_copy == NULL)
+ return FALSE;
+ for (lnum = startpos->lnum; lnum <= endpos->lnum; ++lnum)
+ {
+ char_u *line = ml_get(lnum);
+
+ for (p = line + (lnum == startpos->lnum
+ ? startpos->col + 1 : 0); *p; ++p)
+ {
+ if (lnum == endpos->lnum && (colnr_T)(p - line) >= endpos->col)
+ break;
+ if (*p == ')' && p[delim_len + 1] == '"'
+ && STRNCMP(delim_copy, p + 1, delim_len) == 0)
+ {
+ found = TRUE;
+ break;
+ }
+ }
+ if (found)
+ break;
+ }
+ vim_free(delim_copy);
+ return found;
+}
+
+/*
+ * findmatchlimit -- find the matching paren or brace, if it exists within
+ * maxtravel lines of the cursor. A maxtravel of 0 means search until falling
+ * off the edge of the file.
+ *
+ * "initc" is the character to find a match for. NUL means to find the
+ * character at or after the cursor. Special values:
+ * '*' look for C-style comment / *
+ * '/' look for C-style comment / *, ignoring comment-end
+ * '#' look for preprocessor directives
+ * 'R' look for raw string start: R"delim(text)delim" (only backwards)
+ *
+ * flags: FM_BACKWARD search backwards (when initc is '/', '*' or '#')
+ * FM_FORWARD search forwards (when initc is '/', '*' or '#')
+ * FM_BLOCKSTOP stop at start/end of block ({ or } in column 0)
+ * FM_SKIPCOMM skip comments (not implemented yet!)
+ *
+ * "oap" is only used to set oap->motion_type for a linewise motion, it can be
+ * NULL
+ */
+
+ pos_T *
+findmatchlimit(
+ oparg_T *oap,
+ int initc,
+ int flags,
+ int maxtravel)
+{
+ static pos_T pos; /* current search position */
+ int findc = 0; /* matching brace */
+ int c;
+ int count = 0; /* cumulative number of braces */
+ int backwards = FALSE; /* init for gcc */
+ int raw_string = FALSE; /* search for raw string */
+ int inquote = FALSE; /* TRUE when inside quotes */
+ char_u *linep; /* pointer to current line */
+ char_u *ptr;
+ int do_quotes; /* check for quotes in current line */
+ int at_start; /* do_quotes value at start position */
+ int hash_dir = 0; /* Direction searched for # things */
+ int comment_dir = 0; /* Direction searched for comments */
+ pos_T match_pos; /* Where last slash-star was found */
+ int start_in_quotes; /* start position is in quotes */
+ int traveled = 0; /* how far we've searched so far */
+ int ignore_cend = FALSE; /* ignore comment end */
+ int cpo_match; /* vi compatible matching */
+ int cpo_bsl; /* don't recognize backslashes */
+ int match_escaped = 0; /* search for escaped match */
+ int dir; /* Direction to search */
+ int comment_col = MAXCOL; /* start of / / comment */
+#ifdef FEAT_LISP
+ int lispcomm = FALSE; /* inside of Lisp-style comment */
+ int lisp = curbuf->b_p_lisp; /* engage Lisp-specific hacks ;) */
+#endif
+
+ pos = curwin->w_cursor;
+ pos.coladd = 0;
+ linep = ml_get(pos.lnum);
+
+ cpo_match = (vim_strchr(p_cpo, CPO_MATCH) != NULL);
+ cpo_bsl = (vim_strchr(p_cpo, CPO_MATCHBSL) != NULL);
+
+ /* Direction to search when initc is '/', '*' or '#' */
+ if (flags & FM_BACKWARD)
+ dir = BACKWARD;
+ else if (flags & FM_FORWARD)
+ dir = FORWARD;
+ else
+ dir = 0;
+
+ /*
+ * if initc given, look in the table for the matching character
+ * '/' and '*' are special cases: look for start or end of comment.
+ * When '/' is used, we ignore running backwards into an star-slash, for
+ * "[*" command, we just want to find any comment.
+ */
+ if (initc == '/' || initc == '*' || initc == 'R')
+ {
+ comment_dir = dir;
+ if (initc == '/')
+ ignore_cend = TRUE;
+ backwards = (dir == FORWARD) ? FALSE : TRUE;
+ raw_string = (initc == 'R');
+ initc = NUL;
+ }
+ else if (initc != '#' && initc != NUL)
+ {
+ find_mps_values(&initc, &findc, &backwards, TRUE);
+ if (findc == NUL)
+ return NULL;
+ }
+ else
+ {
+ /*
+ * Either initc is '#', or no initc was given and we need to look
+ * under the cursor.
+ */
+ if (initc == '#')
+ {
+ hash_dir = dir;
+ }
+ else
+ {
+ /*
+ * initc was not given, must look for something to match under
+ * or near the cursor.
+ * Only check for special things when 'cpo' doesn't have '%'.
+ */
+ if (!cpo_match)
+ {
+ /* Are we before or at #if, #else etc.? */
+ ptr = skipwhite(linep);
+ if (*ptr == '#' && pos.col <= (colnr_T)(ptr - linep))
+ {
+ ptr = skipwhite(ptr + 1);
+ if ( STRNCMP(ptr, "if", 2) == 0
+ || STRNCMP(ptr, "endif", 5) == 0
+ || STRNCMP(ptr, "el", 2) == 0)
+ hash_dir = 1;
+ }
+
+ /* Are we on a comment? */
+ else if (linep[pos.col] == '/')
+ {
+ if (linep[pos.col + 1] == '*')
+ {
+ comment_dir = FORWARD;
+ backwards = FALSE;
+ pos.col++;
+ }
+ else if (pos.col > 0 && linep[pos.col - 1] == '*')
+ {
+ comment_dir = BACKWARD;
+ backwards = TRUE;
+ pos.col--;
+ }
+ }
+ else if (linep[pos.col] == '*')
+ {
+ if (linep[pos.col + 1] == '/')
+ {
+ comment_dir = BACKWARD;
+ backwards = TRUE;
+ }
+ else if (pos.col > 0 && linep[pos.col - 1] == '/')
+ {
+ comment_dir = FORWARD;
+ backwards = FALSE;
+ }
+ }
+ }
+
+ /*
+ * If we are not on a comment or the # at the start of a line, then
+ * look for brace anywhere on this line after the cursor.
+ */
+ if (!hash_dir && !comment_dir)
+ {
+ /*
+ * Find the brace under or after the cursor.
+ * If beyond the end of the line, use the last character in
+ * the line.
+ */
+ if (linep[pos.col] == NUL && pos.col)
+ --pos.col;
+ for (;;)
+ {
+ initc = PTR2CHAR(linep + pos.col);
+ if (initc == NUL)
+ break;
+
+ find_mps_values(&initc, &findc, &backwards, FALSE);
+ if (findc)
+ break;
+ pos.col += MB_PTR2LEN(linep + pos.col);
+ }
+ if (!findc)
+ {
+ /* no brace in the line, maybe use " #if" then */
+ if (!cpo_match && *skipwhite(linep) == '#')
+ hash_dir = 1;
+ else
+ return NULL;
+ }
+ else if (!cpo_bsl)
+ {
+ int col, bslcnt = 0;
+
+ /* Set "match_escaped" if there are an odd number of
+ * backslashes. */
+ for (col = pos.col; check_prevcol(linep, col, '\\', &col);)
+ bslcnt++;
+ match_escaped = (bslcnt & 1);
+ }
+ }
+ }
+ if (hash_dir)
+ {
+ /*
+ * Look for matching #if, #else, #elif, or #endif
+ */
+ if (oap != NULL)
+ oap->motion_type = MLINE; /* Linewise for this case only */
+ if (initc != '#')
+ {
+ ptr = skipwhite(skipwhite(linep) + 1);
+ if (STRNCMP(ptr, "if", 2) == 0 || STRNCMP(ptr, "el", 2) == 0)
+ hash_dir = 1;
+ else if (STRNCMP(ptr, "endif", 5) == 0)
+ hash_dir = -1;
+ else
+ return NULL;
+ }
+ pos.col = 0;
+ while (!got_int)
+ {
+ if (hash_dir > 0)
+ {
+ if (pos.lnum == curbuf->b_ml.ml_line_count)
+ break;
+ }
+ else if (pos.lnum == 1)
+ break;
+ pos.lnum += hash_dir;
+ linep = ml_get(pos.lnum);
+ line_breakcheck(); /* check for CTRL-C typed */
+ ptr = skipwhite(linep);
+ if (*ptr != '#')
+ continue;
+ pos.col = (colnr_T) (ptr - linep);
+ ptr = skipwhite(ptr + 1);
+ if (hash_dir > 0)
+ {
+ if (STRNCMP(ptr, "if", 2) == 0)
+ count++;
+ else if (STRNCMP(ptr, "el", 2) == 0)
+ {
+ if (count == 0)
+ return &pos;
+ }
+ else if (STRNCMP(ptr, "endif", 5) == 0)
+ {
+ if (count == 0)
+ return &pos;
+ count--;
+ }
+ }
+ else
+ {
+ if (STRNCMP(ptr, "if", 2) == 0)
+ {
+ if (count == 0)
+ return &pos;
+ count--;
+ }
+ else if (initc == '#' && STRNCMP(ptr, "el", 2) == 0)
+ {
+ if (count == 0)
+ return &pos;
+ }
+ else if (STRNCMP(ptr, "endif", 5) == 0)
+ count++;
+ }
+ }
+ return NULL;
+ }
+ }
+
+#ifdef FEAT_RIGHTLEFT
+ /* This is just guessing: when 'rightleft' is set, search for a matching
+ * paren/brace in the other direction. */
+ if (curwin->w_p_rl && vim_strchr((char_u *)"()[]{}<>", initc) != NULL)
+ backwards = !backwards;
+#endif
+
+ do_quotes = -1;
+ start_in_quotes = MAYBE;
+ CLEAR_POS(&match_pos);
+
+ /* backward search: Check if this line contains a single-line comment */
+ if ((backwards && comment_dir)
+#ifdef FEAT_LISP
+ || lisp
+#endif
+ )
+ comment_col = check_linecomment(linep);
+#ifdef FEAT_LISP
+ if (lisp && comment_col != MAXCOL && pos.col > (colnr_T)comment_col)
+ lispcomm = TRUE; /* find match inside this comment */
+#endif
+ while (!got_int)
+ {
+ /*
+ * Go to the next position, forward or backward. We could use
+ * inc() and dec() here, but that is much slower
+ */
+ if (backwards)
+ {
+#ifdef FEAT_LISP
+ /* char to match is inside of comment, don't search outside */
+ if (lispcomm && pos.col < (colnr_T)comment_col)
+ break;
+#endif
+ if (pos.col == 0) /* at start of line, go to prev. one */
+ {
+ if (pos.lnum == 1) /* start of file */
+ break;
+ --pos.lnum;
+
+ if (maxtravel > 0 && ++traveled > maxtravel)
+ break;
+
+ linep = ml_get(pos.lnum);
+ pos.col = (colnr_T)STRLEN(linep); /* pos.col on trailing NUL */
+ do_quotes = -1;
+ line_breakcheck();
+
+ /* Check if this line contains a single-line comment */
+ if (comment_dir
+#ifdef FEAT_LISP
+ || lisp
+#endif
+ )
+ comment_col = check_linecomment(linep);
+#ifdef FEAT_LISP
+ /* skip comment */
+ if (lisp && comment_col != MAXCOL)
+ pos.col = comment_col;
+#endif
+ }
+ else
+ {
+ --pos.col;
+ if (has_mbyte)
+ pos.col -= (*mb_head_off)(linep, linep + pos.col);
+ }
+ }
+ else /* forward search */
+ {
+ if (linep[pos.col] == NUL
+ /* at end of line, go to next one */
+#ifdef FEAT_LISP
+ /* don't search for match in comment */
+ || (lisp && comment_col != MAXCOL
+ && pos.col == (colnr_T)comment_col)
+#endif
+ )
+ {
+ if (pos.lnum == curbuf->b_ml.ml_line_count /* end of file */
+#ifdef FEAT_LISP
+ /* line is exhausted and comment with it,
+ * don't search for match in code */
+ || lispcomm
+#endif
+ )
+ break;
+ ++pos.lnum;
+
+ if (maxtravel && traveled++ > maxtravel)
+ break;
+
+ linep = ml_get(pos.lnum);
+ pos.col = 0;
+ do_quotes = -1;
+ line_breakcheck();
+#ifdef FEAT_LISP
+ if (lisp) /* find comment pos in new line */
+ comment_col = check_linecomment(linep);
+#endif
+ }
+ else
+ {
+ if (has_mbyte)
+ pos.col += (*mb_ptr2len)(linep + pos.col);
+ else
+ ++pos.col;
+ }
+ }
+
+ /*
+ * If FM_BLOCKSTOP given, stop at a '{' or '}' in column 0.
+ */
+ if (pos.col == 0 && (flags & FM_BLOCKSTOP) &&
+ (linep[0] == '{' || linep[0] == '}'))
+ {
+ if (linep[0] == findc && count == 0) /* match! */
+ return &pos;
+ break; /* out of scope */
+ }
+
+ if (comment_dir)
+ {
+ /* Note: comments do not nest, and we ignore quotes in them */
+ /* TODO: ignore comment brackets inside strings */
+ if (comment_dir == FORWARD)
+ {
+ if (linep[pos.col] == '*' && linep[pos.col + 1] == '/')
+ {
+ pos.col++;
+ return &pos;
+ }
+ }
+ else /* Searching backwards */
+ {
+ /*
+ * A comment may contain / * or / /, it may also start or end
+ * with / * /. Ignore a / * after / / and after *.
+ */
+ if (pos.col == 0)
+ continue;
+ else if (raw_string)
+ {
+ if (linep[pos.col - 1] == 'R'
+ && linep[pos.col] == '"'
+ && vim_strchr(linep + pos.col + 1, '(') != NULL)
+ {
+ /* Possible start of raw string. Now that we have the
+ * delimiter we can check if it ends before where we
+ * started searching, or before the previously found
+ * raw string start. */
+ if (!find_rawstring_end(linep, &pos,
+ count > 0 ? &match_pos : &curwin->w_cursor))
+ {
+ count++;
+ match_pos = pos;
+ match_pos.col--;
+ }
+ linep = ml_get(pos.lnum); /* may have been released */
+ }
+ }
+ else if ( linep[pos.col - 1] == '/'
+ && linep[pos.col] == '*'
+ && (pos.col == 1 || linep[pos.col - 2] != '*')
+ && (int)pos.col < comment_col)
+ {
+ count++;
+ match_pos = pos;
+ match_pos.col--;
+ }
+ else if (linep[pos.col - 1] == '*' && linep[pos.col] == '/')
+ {
+ if (count > 0)
+ pos = match_pos;
+ else if (pos.col > 1 && linep[pos.col - 2] == '/'
+ && (int)pos.col <= comment_col)
+ pos.col -= 2;
+ else if (ignore_cend)
+ continue;
+ else
+ return NULL;
+ return &pos;
+ }
+ }
+ continue;
+ }
+
+ /*
+ * If smart matching ('cpoptions' does not contain '%'), braces inside
+ * of quotes are ignored, but only if there is an even number of
+ * quotes in the line.
+ */
+ if (cpo_match)
+ do_quotes = 0;
+ else if (do_quotes == -1)
+ {
+ /*
+ * Count the number of quotes in the line, skipping \" and '"'.
+ * Watch out for "\\".
+ */
+ at_start = do_quotes;
+ for (ptr = linep; *ptr; ++ptr)
+ {
+ if (ptr == linep + pos.col + backwards)
+ at_start = (do_quotes & 1);
+ if (*ptr == '"'
+ && (ptr == linep || ptr[-1] != '\'' || ptr[1] != '\''))
+ ++do_quotes;
+ if (*ptr == '\\' && ptr[1] != NUL)
+ ++ptr;
+ }
+ do_quotes &= 1; /* result is 1 with even number of quotes */
+
+ /*
+ * If we find an uneven count, check current line and previous
+ * one for a '\' at the end.
+ */
+ if (!do_quotes)
+ {
+ inquote = FALSE;
+ if (ptr[-1] == '\\')
+ {
+ do_quotes = 1;
+ if (start_in_quotes == MAYBE)
+ {
+ /* Do we need to use at_start here? */
+ inquote = TRUE;
+ start_in_quotes = TRUE;
+ }
+ else if (backwards)
+ inquote = TRUE;
+ }
+ if (pos.lnum > 1)
+ {
+ ptr = ml_get(pos.lnum - 1);
+ if (*ptr && *(ptr + STRLEN(ptr) - 1) == '\\')
+ {
+ do_quotes = 1;
+ if (start_in_quotes == MAYBE)
+ {
+ inquote = at_start;
+ if (inquote)
+ start_in_quotes = TRUE;
+ }
+ else if (!backwards)
+ inquote = TRUE;
+ }
+
+ /* ml_get() only keeps one line, need to get linep again */
+ linep = ml_get(pos.lnum);
+ }
+ }
+ }
+ if (start_in_quotes == MAYBE)
+ start_in_quotes = FALSE;
+
+ /*
+ * If 'smartmatch' is set:
+ * Things inside quotes are ignored by setting 'inquote'. If we
+ * find a quote without a preceding '\' invert 'inquote'. At the
+ * end of a line not ending in '\' we reset 'inquote'.
+ *
+ * In lines with an uneven number of quotes (without preceding '\')
+ * we do not know which part to ignore. Therefore we only set
+ * inquote if the number of quotes in a line is even, unless this
+ * line or the previous one ends in a '\'. Complicated, isn't it?
+ */
+ c = PTR2CHAR(linep + pos.col);
+ switch (c)
+ {
+ case NUL:
+ /* at end of line without trailing backslash, reset inquote */
+ if (pos.col == 0 || linep[pos.col - 1] != '\\')
+ {
+ inquote = FALSE;
+ start_in_quotes = FALSE;
+ }
+ break;
+
+ case '"':
+ /* a quote that is preceded with an odd number of backslashes is
+ * ignored */
+ if (do_quotes)
+ {
+ int col;
+
+ for (col = pos.col - 1; col >= 0; --col)
+ if (linep[col] != '\\')
+ break;
+ if ((((int)pos.col - 1 - col) & 1) == 0)
+ {
+ inquote = !inquote;
+ start_in_quotes = FALSE;
+ }
+ }
+ break;
+
+ /*
+ * If smart matching ('cpoptions' does not contain '%'):
+ * Skip things in single quotes: 'x' or '\x'. Be careful for single
+ * single quotes, eg jon's. Things like '\233' or '\x3f' are not
+ * skipped, there is never a brace in them.
+ * Ignore this when finding matches for `'.
+ */
+ case '\'':
+ if (!cpo_match && initc != '\'' && findc != '\'')
+ {
+ if (backwards)
+ {
+ if (pos.col > 1)
+ {
+ if (linep[pos.col - 2] == '\'')
+ {
+ pos.col -= 2;
+ break;
+ }
+ else if (linep[pos.col - 2] == '\\' &&
+ pos.col > 2 && linep[pos.col - 3] == '\'')
+ {
+ pos.col -= 3;
+ break;
+ }
+ }
+ }
+ else if (linep[pos.col + 1]) /* forward search */
+ {
+ if (linep[pos.col + 1] == '\\' &&
+ linep[pos.col + 2] && linep[pos.col + 3] == '\'')
+ {
+ pos.col += 3;
+ break;
+ }
+ else if (linep[pos.col + 2] == '\'')
+ {
+ pos.col += 2;
+ break;
+ }
+ }
+ }
+ /* FALLTHROUGH */
+
+ default:
+#ifdef FEAT_LISP
+ /*
+ * For Lisp skip over backslashed (), {} and [].
+ * (actually, we skip #\( et al)
+ */
+ if (curbuf->b_p_lisp
+ && vim_strchr((char_u *)"(){}[]", c) != NULL
+ && pos.col > 1
+ && check_prevcol(linep, pos.col, '\\', NULL)
+ && check_prevcol(linep, pos.col - 1, '#', NULL))
+ break;
+#endif
+
+ /* Check for match outside of quotes, and inside of
+ * quotes when the start is also inside of quotes. */
+ if ((!inquote || start_in_quotes == TRUE)
+ && (c == initc || c == findc))
+ {
+ int col, bslcnt = 0;
+
+ if (!cpo_bsl)
+ {
+ for (col = pos.col; check_prevcol(linep, col, '\\', &col);)
+ bslcnt++;
+ }
+ /* Only accept a match when 'M' is in 'cpo' or when escaping
+ * is what we expect. */
+ if (cpo_bsl || (bslcnt & 1) == match_escaped)
+ {
+ if (c == initc)
+ count++;
+ else
+ {
+ if (count == 0)
+ return &pos;
+ count--;
+ }
+ }
+ }
+ }
+ }
+
+ if (comment_dir == BACKWARD && count > 0)
+ {
+ pos = match_pos;
+ return &pos;
+ }
+ return (pos_T *)NULL; /* never found it */
+}
+
+/*
+ * Check if line[] contains a / / comment.
+ * Return MAXCOL if not, otherwise return the column.
+ * TODO: skip strings.
+ */
+ static int
+check_linecomment(char_u *line)
+{
+ char_u *p;
+
+ p = line;
+#ifdef FEAT_LISP
+ /* skip Lispish one-line comments */
+ if (curbuf->b_p_lisp)
+ {
+ if (vim_strchr(p, ';') != NULL) /* there may be comments */
+ {
+ int in_str = FALSE; /* inside of string */
+
+ p = line; /* scan from start */
+ while ((p = vim_strpbrk(p, (char_u *)"\";")) != NULL)
+ {
+ if (*p == '"')
+ {
+ if (in_str)
+ {
+ if (*(p - 1) != '\\') /* skip escaped quote */
+ in_str = FALSE;
+ }
+ else if (p == line || ((p - line) >= 2
+ /* skip #\" form */
+ && *(p - 1) != '\\' && *(p - 2) != '#'))
+ in_str = TRUE;
+ }
+ else if (!in_str && ((p - line) < 2
+ || (*(p - 1) != '\\' && *(p - 2) != '#')))
+ break; /* found! */
+ ++p;
+ }
+ }
+ else
+ p = NULL;
+ }
+ else
+#endif
+ while ((p = vim_strchr(p, '/')) != NULL)
+ {
+ /* accept a double /, unless it's preceded with * and followed by *,
+ * because * / / * is an end and start of a C comment */
+ if (p[1] == '/' && (p == line || p[-1] != '*' || p[2] != '*'))
+ break;
+ ++p;
+ }
+
+ if (p == NULL)
+ return MAXCOL;
+ return (int)(p - line);
+}
+
+/*
+ * Move cursor briefly to character matching the one under the cursor.
+ * Used for Insert mode and "r" command.
+ * Show the match only if it is visible on the screen.
+ * If there isn't a match, then beep.
+ */
+ void
+showmatch(
+ int c) /* char to show match for */
+{
+ pos_T *lpos, save_cursor;
+ pos_T mpos;
+ colnr_T vcol;
+ long save_so;
+ long save_siso;
+#ifdef CURSOR_SHAPE
+ int save_state;
+#endif
+ colnr_T save_dollar_vcol;
+ char_u *p;
+ long *so = curwin->w_p_so >= 0 ? &curwin->w_p_so : &p_so;
+ long *siso = curwin->w_p_siso >= 0 ? &curwin->w_p_siso : &p_siso;
+
+ /*
+ * Only show match for chars in the 'matchpairs' option.
+ */
+ /* 'matchpairs' is "x:y,x:y" */
+ for (p = curbuf->b_p_mps; *p != NUL; ++p)
+ {
+#ifdef FEAT_RIGHTLEFT
+ if (PTR2CHAR(p) == c && (curwin->w_p_rl ^ p_ri))
+ break;
+#endif
+ p += MB_PTR2LEN(p) + 1;
+ if (PTR2CHAR(p) == c
+#ifdef FEAT_RIGHTLEFT
+ && !(curwin->w_p_rl ^ p_ri)
+#endif
+ )
+ break;
+ p += MB_PTR2LEN(p);
+ if (*p == NUL)
+ return;
+ }
+
+ if ((lpos = findmatch(NULL, NUL)) == NULL) /* no match, so beep */
+ vim_beep(BO_MATCH);
+ else if (lpos->lnum >= curwin->w_topline && lpos->lnum < curwin->w_botline)
+ {
+ if (!curwin->w_p_wrap)
+ getvcol(curwin, lpos, NULL, &vcol, NULL);
+ if (curwin->w_p_wrap || (vcol >= curwin->w_leftcol
+ && vcol < curwin->w_leftcol + curwin->w_width))
+ {
+ mpos = *lpos; /* save the pos, update_screen() may change it */
+ save_cursor = curwin->w_cursor;
+ save_so = *so;
+ save_siso = *siso;
+ /* Handle "$" in 'cpo': If the ')' is typed on top of the "$",
+ * stop displaying the "$". */
+ if (dollar_vcol >= 0 && dollar_vcol == curwin->w_virtcol)
+ dollar_vcol = -1;
+ ++curwin->w_virtcol; /* do display ')' just before "$" */
+ update_screen(VALID); /* show the new char first */
+
+ save_dollar_vcol = dollar_vcol;
+#ifdef CURSOR_SHAPE
+ save_state = State;
+ State = SHOWMATCH;
+ ui_cursor_shape(); /* may show different cursor shape */
+#endif
+ curwin->w_cursor = mpos; /* move to matching char */
+ *so = 0; /* don't use 'scrolloff' here */
+ *siso = 0; /* don't use 'sidescrolloff' here */
+ showruler(FALSE);
+ setcursor();
+ cursor_on(); /* make sure that the cursor is shown */
+ out_flush_cursor(TRUE, FALSE);
+
+ /* Restore dollar_vcol(), because setcursor() may call curs_rows()
+ * which resets it if the matching position is in a previous line
+ * and has a higher column number. */
+ dollar_vcol = save_dollar_vcol;
+
+ /*
+ * brief pause, unless 'm' is present in 'cpo' and a character is
+ * available.
+ */
+ if (vim_strchr(p_cpo, CPO_SHOWMATCH) != NULL)
+ ui_delay(p_mat * 100L, TRUE);
+ else if (!char_avail())
+ ui_delay(p_mat * 100L, FALSE);
+ curwin->w_cursor = save_cursor; /* restore cursor position */
+ *so = save_so;
+ *siso = save_siso;
+#ifdef CURSOR_SHAPE
+ State = save_state;
+ ui_cursor_shape(); /* may show different cursor shape */
+#endif
+ }
+ }
+}
+
+/*
+ * Find the start of the next sentence, searching in the direction specified
+ * by the "dir" argument. The cursor is positioned on the start of the next
+ * sentence when found. If the next sentence is found, return OK. Return FAIL
+ * otherwise. See ":h sentence" for the precise definition of a "sentence"
+ * text object.
+ */
+ int
+findsent(int dir, long count)
+{
+ pos_T pos, tpos;
+ int c;
+ int (*func)(pos_T *);
+ int startlnum;
+ int noskip = FALSE; /* do not skip blanks */
+ int cpo_J;
+ int found_dot;
+
+ pos = curwin->w_cursor;
+ if (dir == FORWARD)
+ func = incl;
+ else
+ func = decl;
+
+ while (count--)
+ {
+ /*
+ * if on an empty line, skip upto a non-empty line
+ */
+ if (gchar_pos(&pos) == NUL)
+ {
+ do
+ if ((*func)(&pos) == -1)
+ break;
+ while (gchar_pos(&pos) == NUL);
+ if (dir == FORWARD)
+ goto found;
+ }
+ /*
+ * if on the start of a paragraph or a section and searching forward,
+ * go to the next line
+ */
+ else if (dir == FORWARD && pos.col == 0 &&
+ startPS(pos.lnum, NUL, FALSE))
+ {
+ if (pos.lnum == curbuf->b_ml.ml_line_count)
+ return FAIL;
+ ++pos.lnum;
+ goto found;
+ }
+ else if (dir == BACKWARD)
+ decl(&pos);
+
+ // go back to the previous non-white non-punctuation character
+ found_dot = FALSE;
+ while (c = gchar_pos(&pos), VIM_ISWHITE(c)
+ || vim_strchr((char_u *)".!?)]\"'", c) != NULL)
+ {
+ tpos = pos;
+ if (decl(&tpos) == -1 || (LINEEMPTY(tpos.lnum) && dir == FORWARD))
+ break;
+
+ if (found_dot)
+ break;
+ if (vim_strchr((char_u *) ".!?", c) != NULL)
+ found_dot = TRUE;
+
+ if (vim_strchr((char_u *) ")]\"'", c) != NULL
+ && vim_strchr((char_u *) ".!?)]\"'", gchar_pos(&tpos)) == NULL)
+ break;
+
+ decl(&pos);
+ }
+
+ /* remember the line where the search started */
+ startlnum = pos.lnum;
+ cpo_J = vim_strchr(p_cpo, CPO_ENDOFSENT) != NULL;
+
+ for (;;) /* find end of sentence */
+ {
+ c = gchar_pos(&pos);
+ if (c == NUL || (pos.col == 0 && startPS(pos.lnum, NUL, FALSE)))
+ {
+ if (dir == BACKWARD && pos.lnum != startlnum)
+ ++pos.lnum;
+ break;
+ }
+ if (c == '.' || c == '!' || c == '?')
+ {
+ tpos = pos;
+ do
+ if ((c = inc(&tpos)) == -1)
+ break;
+ while (vim_strchr((char_u *)")]\"'", c = gchar_pos(&tpos))
+ != NULL);
+ if (c == -1 || (!cpo_J && (c == ' ' || c == '\t')) || c == NUL
+ || (cpo_J && (c == ' ' && inc(&tpos) >= 0
+ && gchar_pos(&tpos) == ' ')))
+ {
+ pos = tpos;
+ if (gchar_pos(&pos) == NUL) /* skip NUL at EOL */
+ inc(&pos);
+ break;
+ }
+ }
+ if ((*func)(&pos) == -1)
+ {
+ if (count)
+ return FAIL;
+ noskip = TRUE;
+ break;
+ }
+ }
+found:
+ /* skip white space */
+ while (!noskip && ((c = gchar_pos(&pos)) == ' ' || c == '\t'))
+ if (incl(&pos) == -1)
+ break;
+ }
+
+ setpcmark();
+ curwin->w_cursor = pos;
+ return OK;
+}
+
+/*
+ * Find the next paragraph or section in direction 'dir'.
+ * Paragraphs are currently supposed to be separated by empty lines.
+ * If 'what' is NUL we go to the next paragraph.
+ * If 'what' is '{' or '}' we go to the next section.
+ * If 'both' is TRUE also stop at '}'.
+ * Return TRUE if the next paragraph or section was found.
+ */
+ int
+findpar(
+ int *pincl, /* Return: TRUE if last char is to be included */
+ int dir,
+ long count,
+ int what,
+ int both)
+{
+ linenr_T curr;
+ int did_skip; /* TRUE after separating lines have been skipped */
+ int first; /* TRUE on first line */
+ int posix = (vim_strchr(p_cpo, CPO_PARA) != NULL);
+#ifdef FEAT_FOLDING
+ linenr_T fold_first; /* first line of a closed fold */
+ linenr_T fold_last; /* last line of a closed fold */
+ int fold_skipped; /* TRUE if a closed fold was skipped this
+ iteration */
+#endif
+
+ curr = curwin->w_cursor.lnum;
+
+ while (count--)
+ {
+ did_skip = FALSE;
+ for (first = TRUE; ; first = FALSE)
+ {
+ if (*ml_get(curr) != NUL)
+ did_skip = TRUE;
+
+#ifdef FEAT_FOLDING
+ /* skip folded lines */
+ fold_skipped = FALSE;
+ if (first && hasFolding(curr, &fold_first, &fold_last))
+ {
+ curr = ((dir > 0) ? fold_last : fold_first) + dir;
+ fold_skipped = TRUE;
+ }
+#endif
+
+ /* POSIX has its own ideas of what a paragraph boundary is and it
+ * doesn't match historical Vi: It also stops at a "{" in the
+ * first column and at an empty line. */
+ if (!first && did_skip && (startPS(curr, what, both)
+ || (posix && what == NUL && *ml_get(curr) == '{')))
+ break;
+
+#ifdef FEAT_FOLDING
+ if (fold_skipped)
+ curr -= dir;
+#endif
+ if ((curr += dir) < 1 || curr > curbuf->b_ml.ml_line_count)
+ {
+ if (count)
+ return FALSE;
+ curr -= dir;
+ break;
+ }
+ }
+ }
+ setpcmark();
+ if (both && *ml_get(curr) == '}') /* include line with '}' */
+ ++curr;
+ curwin->w_cursor.lnum = curr;
+ if (curr == curbuf->b_ml.ml_line_count && what != '}')
+ {
+ char_u *line = ml_get(curr);
+
+ /* Put the cursor on the last character in the last line and make the
+ * motion inclusive. */
+ if ((curwin->w_cursor.col = (colnr_T)STRLEN(line)) != 0)
+ {
+ --curwin->w_cursor.col;
+ curwin->w_cursor.col -=
+ (*mb_head_off)(line, line + curwin->w_cursor.col);
+ *pincl = TRUE;
+ }
+ }
+ else
+ curwin->w_cursor.col = 0;
+ return TRUE;
+}
+
+/*
+ * check if the string 's' is a nroff macro that is in option 'opt'
+ */
+ static int
+inmacro(char_u *opt, char_u *s)
+{
+ char_u *macro;
+
+ for (macro = opt; macro[0]; ++macro)
+ {
+ /* Accept two characters in the option being equal to two characters
+ * in the line. A space in the option matches with a space in the
+ * line or the line having ended. */
+ if ( (macro[0] == s[0]
+ || (macro[0] == ' '
+ && (s[0] == NUL || s[0] == ' ')))
+ && (macro[1] == s[1]
+ || ((macro[1] == NUL || macro[1] == ' ')
+ && (s[0] == NUL || s[1] == NUL || s[1] == ' '))))
+ break;
+ ++macro;
+ if (macro[0] == NUL)
+ break;
+ }
+ return (macro[0] != NUL);
+}
+
+/*
+ * startPS: return TRUE if line 'lnum' is the start of a section or paragraph.
+ * If 'para' is '{' or '}' only check for sections.
+ * If 'both' is TRUE also stop at '}'
+ */
+ int
+startPS(linenr_T lnum, int para, int both)
+{
+ char_u *s;
+
+ s = ml_get(lnum);
+ if (*s == para || *s == '\f' || (both && *s == '}'))
+ return TRUE;
+ if (*s == '.' && (inmacro(p_sections, s + 1) ||
+ (!para && inmacro(p_para, s + 1))))
+ return TRUE;
+ return FALSE;
+}
+
+/*
+ * The following routines do the word searches performed by the 'w', 'W',
+ * 'b', 'B', 'e', and 'E' commands.
+ */
+
+/*
+ * To perform these searches, characters are placed into one of three
+ * classes, and transitions between classes determine word boundaries.
+ *
+ * The classes are:
+ *
+ * 0 - white space
+ * 1 - punctuation
+ * 2 or higher - keyword characters (letters, digits and underscore)
+ */
+
+static int cls_bigword; /* TRUE for "W", "B" or "E" */
+
+/*
+ * cls() - returns the class of character at curwin->w_cursor
+ *
+ * If a 'W', 'B', or 'E' motion is being done (cls_bigword == TRUE), chars
+ * from class 2 and higher are reported as class 1 since only white space
+ * boundaries are of interest.
+ */
+ static int
+cls(void)
+{
+ int c;
+
+ c = gchar_cursor();
+#ifdef FEAT_FKMAP /* when 'akm' (Farsi mode), take care of Farsi blank */
+ if (p_altkeymap && c == F_BLANK)
+ return 0;
+#endif
+ if (c == ' ' || c == '\t' || c == NUL)
+ return 0;
+ if (enc_dbcs != 0 && c > 0xFF)
+ {
+ /* If cls_bigword, report multi-byte chars as class 1. */
+ if (enc_dbcs == DBCS_KOR && cls_bigword)
+ return 1;
+
+ /* process code leading/trailing bytes */
+ return dbcs_class(((unsigned)c >> 8), (c & 0xFF));
+ }
+ if (enc_utf8)
+ {
+ c = utf_class(c);
+ if (c != 0 && cls_bigword)
+ return 1;
+ return c;
+ }
+
+ /* If cls_bigword is TRUE, report all non-blanks as class 1. */
+ if (cls_bigword)
+ return 1;
+
+ if (vim_iswordc(c))
+ return 2;
+ return 1;
+}
+
+
+/*
+ * fwd_word(count, type, eol) - move forward one word
+ *
+ * Returns FAIL if the cursor was already at the end of the file.
+ * If eol is TRUE, last word stops at end of line (for operators).
+ */
+ int
+fwd_word(
+ long count,
+ int bigword, /* "W", "E" or "B" */
+ int eol)
+{
+ int sclass; /* starting class */
+ int i;
+ int last_line;
+
+ curwin->w_cursor.coladd = 0;
+ cls_bigword = bigword;
+ while (--count >= 0)
+ {
+#ifdef FEAT_FOLDING
+ /* When inside a range of folded lines, move to the last char of the
+ * last line. */
+ if (hasFolding(curwin->w_cursor.lnum, NULL, &curwin->w_cursor.lnum))
+ coladvance((colnr_T)MAXCOL);
+#endif
+ sclass = cls();
+
+ /*
+ * We always move at least one character, unless on the last
+ * character in the buffer.
+ */
+ last_line = (curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count);
+ i = inc_cursor();
+ if (i == -1 || (i >= 1 && last_line)) /* started at last char in file */
+ return FAIL;
+ if (i >= 1 && eol && count == 0) /* started at last char in line */
+ return OK;
+
+ /*
+ * Go one char past end of current word (if any)
+ */
+ if (sclass != 0)
+ while (cls() == sclass)
+ {
+ i = inc_cursor();
+ if (i == -1 || (i >= 1 && eol && count == 0))
+ return OK;
+ }
+
+ /*
+ * go to next non-white
+ */
+ while (cls() == 0)
+ {
+ /*
+ * We'll stop if we land on a blank line
+ */
+ if (curwin->w_cursor.col == 0 && *ml_get_curline() == NUL)
+ break;
+
+ i = inc_cursor();
+ if (i == -1 || (i >= 1 && eol && count == 0))
+ return OK;
+ }
+ }
+ return OK;
+}
+
+/*
+ * bck_word() - move backward 'count' words
+ *
+ * If stop is TRUE and we are already on the start of a word, move one less.
+ *
+ * Returns FAIL if top of the file was reached.
+ */
+ int
+bck_word(long count, int bigword, int stop)
+{
+ int sclass; /* starting class */
+
+ curwin->w_cursor.coladd = 0;
+ cls_bigword = bigword;
+ while (--count >= 0)
+ {
+#ifdef FEAT_FOLDING
+ /* When inside a range of folded lines, move to the first char of the
+ * first line. */
+ if (hasFolding(curwin->w_cursor.lnum, &curwin->w_cursor.lnum, NULL))
+ curwin->w_cursor.col = 0;
+#endif
+ sclass = cls();
+ if (dec_cursor() == -1) /* started at start of file */
+ return FAIL;
+
+ if (!stop || sclass == cls() || sclass == 0)
+ {
+ /*
+ * Skip white space before the word.
+ * Stop on an empty line.
+ */
+ while (cls() == 0)
+ {
+ if (curwin->w_cursor.col == 0
+ && LINEEMPTY(curwin->w_cursor.lnum))
+ goto finished;
+ if (dec_cursor() == -1) /* hit start of file, stop here */
+ return OK;
+ }
+
+ /*
+ * Move backward to start of this word.
+ */
+ if (skip_chars(cls(), BACKWARD))
+ return OK;
+ }
+
+ inc_cursor(); /* overshot - forward one */
+finished:
+ stop = FALSE;
+ }
+ return OK;
+}
+
+/*
+ * end_word() - move to the end of the word
+ *
+ * There is an apparent bug in the 'e' motion of the real vi. At least on the
+ * System V Release 3 version for the 80386. Unlike 'b' and 'w', the 'e'
+ * motion crosses blank lines. When the real vi crosses a blank line in an
+ * 'e' motion, the cursor is placed on the FIRST character of the next
+ * non-blank line. The 'E' command, however, works correctly. Since this
+ * appears to be a bug, I have not duplicated it here.
+ *
+ * Returns FAIL if end of the file was reached.
+ *
+ * If stop is TRUE and we are already on the end of a word, move one less.
+ * If empty is TRUE stop on an empty line.
+ */
+ int
+end_word(
+ long count,
+ int bigword,
+ int stop,
+ int empty)
+{
+ int sclass; /* starting class */
+
+ curwin->w_cursor.coladd = 0;
+ cls_bigword = bigword;
+ while (--count >= 0)
+ {
+#ifdef FEAT_FOLDING
+ /* When inside a range of folded lines, move to the last char of the
+ * last line. */
+ if (hasFolding(curwin->w_cursor.lnum, NULL, &curwin->w_cursor.lnum))
+ coladvance((colnr_T)MAXCOL);
+#endif
+ sclass = cls();
+ if (inc_cursor() == -1)
+ return FAIL;
+
+ /*
+ * If we're in the middle of a word, we just have to move to the end
+ * of it.
+ */
+ if (cls() == sclass && sclass != 0)
+ {
+ /*
+ * Move forward to end of the current word
+ */
+ if (skip_chars(sclass, FORWARD))
+ return FAIL;
+ }
+ else if (!stop || sclass == 0)
+ {
+ /*
+ * We were at the end of a word. Go to the end of the next word.
+ * First skip white space, if 'empty' is TRUE, stop at empty line.
+ */
+ while (cls() == 0)
+ {
+ if (empty && curwin->w_cursor.col == 0
+ && LINEEMPTY(curwin->w_cursor.lnum))
+ goto finished;
+ if (inc_cursor() == -1) /* hit end of file, stop here */
+ return FAIL;
+ }
+
+ /*
+ * Move forward to the end of this word.
+ */
+ if (skip_chars(cls(), FORWARD))
+ return FAIL;
+ }
+ dec_cursor(); /* overshot - one char backward */
+finished:
+ stop = FALSE; /* we move only one word less */
+ }
+ return OK;
+}
+
+/*
+ * Move back to the end of the word.
+ *
+ * Returns FAIL if start of the file was reached.
+ */
+ int
+bckend_word(
+ long count,
+ int bigword, /* TRUE for "B" */
+ int eol) /* TRUE: stop at end of line. */
+{
+ int sclass; /* starting class */
+ int i;
+
+ curwin->w_cursor.coladd = 0;
+ cls_bigword = bigword;
+ while (--count >= 0)
+ {
+ sclass = cls();
+ if ((i = dec_cursor()) == -1)
+ return FAIL;
+ if (eol && i == 1)
+ return OK;
+
+ /*
+ * Move backward to before the start of this word.
+ */
+ if (sclass != 0)
+ {
+ while (cls() == sclass)
+ if ((i = dec_cursor()) == -1 || (eol && i == 1))
+ return OK;
+ }
+
+ /*
+ * Move backward to end of the previous word
+ */
+ while (cls() == 0)
+ {
+ if (curwin->w_cursor.col == 0 && LINEEMPTY(curwin->w_cursor.lnum))
+ break;
+ if ((i = dec_cursor()) == -1 || (eol && i == 1))
+ return OK;
+ }
+ }
+ return OK;
+}
+
+/*
+ * Skip a row of characters of the same class.
+ * Return TRUE when end-of-file reached, FALSE otherwise.
+ */
+ static int
+skip_chars(int cclass, int dir)
+{
+ while (cls() == cclass)
+ if ((dir == FORWARD ? inc_cursor() : dec_cursor()) == -1)
+ return TRUE;
+ return FALSE;
+}
+
+#ifdef FEAT_TEXTOBJ
+/*
+ * Go back to the start of the word or the start of white space
+ */
+ static void
+back_in_line(void)
+{
+ int sclass; /* starting class */
+
+ sclass = cls();
+ for (;;)
+ {
+ if (curwin->w_cursor.col == 0) /* stop at start of line */
+ break;
+ dec_cursor();
+ if (cls() != sclass) /* stop at start of word */
+ {
+ inc_cursor();
+ break;
+ }
+ }
+}
+
+ static void
+find_first_blank(pos_T *posp)
+{
+ int c;
+
+ while (decl(posp) != -1)
+ {
+ c = gchar_pos(posp);
+ if (!VIM_ISWHITE(c))
+ {
+ incl(posp);
+ break;
+ }
+ }
+}
+
+/*
+ * Skip count/2 sentences and count/2 separating white spaces.
+ */
+ static void
+findsent_forward(
+ long count,
+ int at_start_sent) /* cursor is at start of sentence */
+{
+ while (count--)
+ {
+ findsent(FORWARD, 1L);
+ if (at_start_sent)
+ find_first_blank(&curwin->w_cursor);
+ if (count == 0 || at_start_sent)
+ decl(&curwin->w_cursor);
+ at_start_sent = !at_start_sent;
+ }
+}
+
+/*
+ * Find word under cursor, cursor at end.
+ * Used while an operator is pending, and in Visual mode.
+ */
+ int
+current_word(
+ oparg_T *oap,
+ long count,
+ int include, /* TRUE: include word and white space */
+ int bigword) /* FALSE == word, TRUE == WORD */
+{
+ pos_T start_pos;
+ pos_T pos;
+ int inclusive = TRUE;
+ int include_white = FALSE;
+
+ cls_bigword = bigword;
+ CLEAR_POS(&start_pos);
+
+ /* Correct cursor when 'selection' is exclusive */
+ if (VIsual_active && *p_sel == 'e' && LT_POS(VIsual, curwin->w_cursor))
+ dec_cursor();
+
+ /*
+ * When Visual mode is not active, or when the VIsual area is only one
+ * character, select the word and/or white space under the cursor.
+ */
+ if (!VIsual_active || EQUAL_POS(curwin->w_cursor, VIsual))
+ {
+ /*
+ * Go to start of current word or white space.
+ */
+ back_in_line();
+ start_pos = curwin->w_cursor;
+
+ /*
+ * If the start is on white space, and white space should be included
+ * (" word"), or start is not on white space, and white space should
+ * not be included ("word"), find end of word.
+ */
+ if ((cls() == 0) == include)
+ {
+ if (end_word(1L, bigword, TRUE, TRUE) == FAIL)
+ return FAIL;
+ }
+ else
+ {
+ /*
+ * If the start is not on white space, and white space should be
+ * included ("word "), or start is on white space and white
+ * space should not be included (" "), find start of word.
+ * If we end up in the first column of the next line (single char
+ * word) back up to end of the line.
+ */
+ fwd_word(1L, bigword, TRUE);
+ if (curwin->w_cursor.col == 0)
+ decl(&curwin->w_cursor);
+ else
+ oneleft();
+
+ if (include)
+ include_white = TRUE;
+ }
+
+ if (VIsual_active)
+ {
+ /* should do something when inclusive == FALSE ! */
+ VIsual = start_pos;
+ redraw_curbuf_later(INVERTED); /* update the inversion */
+ }
+ else
+ {
+ oap->start = start_pos;
+ oap->motion_type = MCHAR;
+ }
+ --count;
+ }
+
+ /*
+ * When count is still > 0, extend with more objects.
+ */
+ while (count > 0)
+ {
+ inclusive = TRUE;
+ if (VIsual_active && LT_POS(curwin->w_cursor, VIsual))
+ {
+ /*
+ * In Visual mode, with cursor at start: move cursor back.
+ */
+ if (decl(&curwin->w_cursor) == -1)
+ return FAIL;
+ if (include != (cls() != 0))
+ {
+ if (bck_word(1L, bigword, TRUE) == FAIL)
+ return FAIL;
+ }
+ else
+ {
+ if (bckend_word(1L, bigword, TRUE) == FAIL)
+ return FAIL;
+ (void)incl(&curwin->w_cursor);
+ }
+ }
+ else
+ {
+ /*
+ * Move cursor forward one word and/or white area.
+ */
+ if (incl(&curwin->w_cursor) == -1)
+ return FAIL;
+ if (include != (cls() == 0))
+ {
+ if (fwd_word(1L, bigword, TRUE) == FAIL && count > 1)
+ return FAIL;
+ /*
+ * If end is just past a new-line, we don't want to include
+ * the first character on the line.
+ * Put cursor on last char of white.
+ */
+ if (oneleft() == FAIL)
+ inclusive = FALSE;
+ }
+ else
+ {
+ if (end_word(1L, bigword, TRUE, TRUE) == FAIL)
+ return FAIL;
+ }
+ }
+ --count;
+ }
+
+ if (include_white && (cls() != 0
+ || (curwin->w_cursor.col == 0 && !inclusive)))
+ {
+ /*
+ * If we don't include white space at the end, move the start
+ * to include some white space there. This makes "daw" work
+ * better on the last word in a sentence (and "2daw" on last-but-one
+ * word). Also when "2daw" deletes "word." at the end of the line
+ * (cursor is at start of next line).
+ * But don't delete white space at start of line (indent).
+ */
+ pos = curwin->w_cursor; /* save cursor position */
+ curwin->w_cursor = start_pos;
+ if (oneleft() == OK)
+ {
+ back_in_line();
+ if (cls() == 0 && curwin->w_cursor.col > 0)
+ {
+ if (VIsual_active)
+ VIsual = curwin->w_cursor;
+ else
+ oap->start = curwin->w_cursor;
+ }
+ }
+ curwin->w_cursor = pos; /* put cursor back at end */
+ }
+
+ if (VIsual_active)
+ {
+ if (*p_sel == 'e' && inclusive && LTOREQ_POS(VIsual, curwin->w_cursor))
+ inc_cursor();
+ if (VIsual_mode == 'V')
+ {
+ VIsual_mode = 'v';
+ redraw_cmdline = TRUE; /* show mode later */
+ }
+ }
+ else
+ oap->inclusive = inclusive;
+
+ return OK;
+}
+
+/*
+ * Find sentence(s) under the cursor, cursor at end.
+ * When Visual active, extend it by one or more sentences.
+ */
+ int
+current_sent(oparg_T *oap, long count, int include)
+{
+ pos_T start_pos;
+ pos_T pos;
+ int start_blank;
+ int c;
+ int at_start_sent;
+ long ncount;
+
+ start_pos = curwin->w_cursor;
+ pos = start_pos;
+ findsent(FORWARD, 1L); /* Find start of next sentence. */
+
+ /*
+ * When the Visual area is bigger than one character: Extend it.
+ */
+ if (VIsual_active && !EQUAL_POS(start_pos, VIsual))
+ {
+extend:
+ if (LT_POS(start_pos, VIsual))
+ {
+ /*
+ * Cursor at start of Visual area.
+ * Find out where we are:
+ * - in the white space before a sentence
+ * - in a sentence or just after it
+ * - at the start of a sentence
+ */
+ at_start_sent = TRUE;
+ decl(&pos);
+ while (LT_POS(pos, curwin->w_cursor))
+ {
+ c = gchar_pos(&pos);
+ if (!VIM_ISWHITE(c))
+ {
+ at_start_sent = FALSE;
+ break;
+ }
+ incl(&pos);
+ }
+ if (!at_start_sent)
+ {
+ findsent(BACKWARD, 1L);
+ if (EQUAL_POS(curwin->w_cursor, start_pos))
+ at_start_sent = TRUE; /* exactly at start of sentence */
+ else
+ /* inside a sentence, go to its end (start of next) */
+ findsent(FORWARD, 1L);
+ }
+ if (include) /* "as" gets twice as much as "is" */
+ count *= 2;
+ while (count--)
+ {
+ if (at_start_sent)
+ find_first_blank(&curwin->w_cursor);
+ c = gchar_cursor();
+ if (!at_start_sent || (!include && !VIM_ISWHITE(c)))
+ findsent(BACKWARD, 1L);
+ at_start_sent = !at_start_sent;
+ }
+ }
+ else
+ {
+ /*
+ * Cursor at end of Visual area.
+ * Find out where we are:
+ * - just before a sentence
+ * - just before or in the white space before a sentence
+ * - in a sentence
+ */
+ incl(&pos);
+ at_start_sent = TRUE;
+ /* not just before a sentence */
+ if (!EQUAL_POS(pos, curwin->w_cursor))
+ {
+ at_start_sent = FALSE;
+ while (LT_POS(pos, curwin->w_cursor))
+ {
+ c = gchar_pos(&pos);
+ if (!VIM_ISWHITE(c))
+ {
+ at_start_sent = TRUE;
+ break;
+ }
+ incl(&pos);
+ }
+ if (at_start_sent) /* in the sentence */
+ findsent(BACKWARD, 1L);
+ else /* in/before white before a sentence */
+ curwin->w_cursor = start_pos;
+ }
+
+ if (include) /* "as" gets twice as much as "is" */
+ count *= 2;
+ findsent_forward(count, at_start_sent);
+ if (*p_sel == 'e')
+ ++curwin->w_cursor.col;
+ }
+ return OK;
+ }
+
+ /*
+ * If the cursor started on a blank, check if it is just before the start
+ * of the next sentence.
+ */
+ while (c = gchar_pos(&pos), VIM_ISWHITE(c)) /* VIM_ISWHITE() is a macro */
+ incl(&pos);
+ if (EQUAL_POS(pos, curwin->w_cursor))
+ {
+ start_blank = TRUE;
+ find_first_blank(&start_pos); /* go back to first blank */
+ }
+ else
+ {
+ start_blank = FALSE;
+ findsent(BACKWARD, 1L);
+ start_pos = curwin->w_cursor;
+ }
+ if (include)
+ ncount = count * 2;
+ else
+ {
+ ncount = count;
+ if (start_blank)
+ --ncount;
+ }
+ if (ncount > 0)
+ findsent_forward(ncount, TRUE);
+ else
+ decl(&curwin->w_cursor);
+
+ if (include)
+ {
+ /*
+ * If the blank in front of the sentence is included, exclude the
+ * blanks at the end of the sentence, go back to the first blank.
+ * If there are no trailing blanks, try to include leading blanks.
+ */
+ if (start_blank)
+ {
+ find_first_blank(&curwin->w_cursor);
+ c = gchar_pos(&curwin->w_cursor); /* VIM_ISWHITE() is a macro */
+ if (VIM_ISWHITE(c))
+ decl(&curwin->w_cursor);
+ }
+ else if (c = gchar_cursor(), !VIM_ISWHITE(c))
+ find_first_blank(&start_pos);
+ }
+
+ if (VIsual_active)
+ {
+ /* Avoid getting stuck with "is" on a single space before a sentence. */
+ if (EQUAL_POS(start_pos, curwin->w_cursor))
+ goto extend;
+ if (*p_sel == 'e')
+ ++curwin->w_cursor.col;
+ VIsual = start_pos;
+ VIsual_mode = 'v';
+ redraw_cmdline = TRUE; /* show mode later */
+ redraw_curbuf_later(INVERTED); /* update the inversion */
+ }
+ else
+ {
+ /* include a newline after the sentence, if there is one */
+ if (incl(&curwin->w_cursor) == -1)
+ oap->inclusive = TRUE;
+ else
+ oap->inclusive = FALSE;
+ oap->start = start_pos;
+ oap->motion_type = MCHAR;
+ }
+ return OK;
+}
+
+/*
+ * Find block under the cursor, cursor at end.
+ * "what" and "other" are two matching parenthesis/brace/etc.
+ */
+ int
+current_block(
+ oparg_T *oap,
+ long count,
+ int include, /* TRUE == include white space */
+ int what, /* '(', '{', etc. */
+ int other) /* ')', '}', etc. */
+{
+ pos_T old_pos;
+ pos_T *pos = NULL;
+ pos_T start_pos;
+ pos_T *end_pos;
+ pos_T old_start, old_end;
+ char_u *save_cpo;
+ int sol = FALSE; /* '{' at start of line */
+
+ old_pos = curwin->w_cursor;
+ old_end = curwin->w_cursor; /* remember where we started */
+ old_start = old_end;
+
+ /*
+ * If we start on '(', '{', ')', '}', etc., use the whole block inclusive.
+ */
+ if (!VIsual_active || EQUAL_POS(VIsual, curwin->w_cursor))
+ {
+ setpcmark();
+ if (what == '{') /* ignore indent */
+ while (inindent(1))
+ if (inc_cursor() != 0)
+ break;
+ if (gchar_cursor() == what)
+ /* cursor on '(' or '{', move cursor just after it */
+ ++curwin->w_cursor.col;
+ }
+ else if (LT_POS(VIsual, curwin->w_cursor))
+ {
+ old_start = VIsual;
+ curwin->w_cursor = VIsual; /* cursor at low end of Visual */
+ }
+ else
+ old_end = VIsual;
+
+ /*
+ * Search backwards for unclosed '(', '{', etc..
+ * Put this position in start_pos.
+ * Ignore quotes here. Keep the "M" flag in 'cpo', as that is what the
+ * user wants.
+ */
+ save_cpo = p_cpo;
+ p_cpo = (char_u *)(vim_strchr(p_cpo, CPO_MATCHBSL) != NULL ? "%M" : "%");
+ while (count-- > 0)
+ {
+ if ((pos = findmatch(NULL, what)) == NULL)
+ break;
+ curwin->w_cursor = *pos;
+ start_pos = *pos; /* the findmatch for end_pos will overwrite *pos */
+ }
+ p_cpo = save_cpo;
+
+ /*
+ * Search for matching ')', '}', etc.
+ * Put this position in curwin->w_cursor.
+ */
+ if (pos == NULL || (end_pos = findmatch(NULL, other)) == NULL)
+ {
+ curwin->w_cursor = old_pos;
+ return FAIL;
+ }
+ curwin->w_cursor = *end_pos;
+
+ /*
+ * Try to exclude the '(', '{', ')', '}', etc. when "include" is FALSE.
+ * If the ending '}', ')' or ']' is only preceded by indent, skip that
+ * indent. But only if the resulting area is not smaller than what we
+ * started with.
+ */
+ while (!include)
+ {
+ incl(&start_pos);
+ sol = (curwin->w_cursor.col == 0);
+ decl(&curwin->w_cursor);
+ while (inindent(1))
+ {
+ sol = TRUE;
+ if (decl(&curwin->w_cursor) != 0)
+ break;
+ }
+
+ /*
+ * In Visual mode, when the resulting area is not bigger than what we
+ * started with, extend it to the next block, and then exclude again.
+ */
+ if (!LT_POS(start_pos, old_start) && !LT_POS(old_end, curwin->w_cursor)
+ && VIsual_active)
+ {
+ curwin->w_cursor = old_start;
+ decl(&curwin->w_cursor);
+ if ((pos = findmatch(NULL, what)) == NULL)
+ {
+ curwin->w_cursor = old_pos;
+ return FAIL;
+ }
+ start_pos = *pos;
+ curwin->w_cursor = *pos;
+ if ((end_pos = findmatch(NULL, other)) == NULL)
+ {
+ curwin->w_cursor = old_pos;
+ return FAIL;
+ }
+ curwin->w_cursor = *end_pos;
+ }
+ else
+ break;
+ }
+
+ if (VIsual_active)
+ {
+ if (*p_sel == 'e')
+ inc(&curwin->w_cursor);
+ if (sol && gchar_cursor() != NUL)
+ inc(&curwin->w_cursor); /* include the line break */
+ VIsual = start_pos;
+ VIsual_mode = 'v';
+ redraw_curbuf_later(INVERTED); /* update the inversion */
+ showmode();
+ }
+ else
+ {
+ oap->start = start_pos;
+ oap->motion_type = MCHAR;
+ oap->inclusive = FALSE;
+ if (sol)
+ incl(&curwin->w_cursor);
+ else if (LTOREQ_POS(start_pos, curwin->w_cursor))
+ /* Include the character under the cursor. */
+ oap->inclusive = TRUE;
+ else
+ /* End is before the start (no text in between <>, [], etc.): don't
+ * operate on any text. */
+ curwin->w_cursor = start_pos;
+ }
+
+ return OK;
+}
+
+/*
+ * Return TRUE if the cursor is on a "<aaa>" tag. Ignore "<aaa/>".
+ * When "end_tag" is TRUE return TRUE if the cursor is on "</aaa>".
+ */
+ static int
+in_html_tag(
+ int end_tag)
+{
+ char_u *line = ml_get_curline();
+ char_u *p;
+ int c;
+ int lc = NUL;
+ pos_T pos;
+
+ if (enc_dbcs)
+ {
+ char_u *lp = NULL;
+
+ /* We search forward until the cursor, because searching backwards is
+ * very slow for DBCS encodings. */
+ for (p = line; p < line + curwin->w_cursor.col; MB_PTR_ADV(p))
+ if (*p == '>' || *p == '<')
+ {
+ lc = *p;
+ lp = p;
+ }
+ if (*p != '<') /* check for '<' under cursor */
+ {
+ if (lc != '<')
+ return FALSE;
+ p = lp;
+ }
+ }
+ else
+ {
+ for (p = line + curwin->w_cursor.col; p > line; )
+ {
+ if (*p == '<') /* find '<' under/before cursor */
+ break;
+ MB_PTR_BACK(line, p);
+ if (*p == '>') /* find '>' before cursor */
+ break;
+ }
+ if (*p != '<')
+ return FALSE;
+ }
+
+ pos.lnum = curwin->w_cursor.lnum;
+ pos.col = (colnr_T)(p - line);
+
+ MB_PTR_ADV(p);
+ if (end_tag)
+ /* check that there is a '/' after the '<' */
+ return *p == '/';
+
+ /* check that there is no '/' after the '<' */
+ if (*p == '/')
+ return FALSE;
+
+ /* check that the matching '>' is not preceded by '/' */
+ for (;;)
+ {
+ if (inc(&pos) < 0)
+ return FALSE;
+ c = *ml_get_pos(&pos);
+ if (c == '>')
+ break;
+ lc = c;
+ }
+ return lc != '/';
+}
+
+/*
+ * Find tag block under the cursor, cursor at end.
+ */
+ int
+current_tagblock(
+ oparg_T *oap,
+ long count_arg,
+ int include) /* TRUE == include white space */
+{
+ long count = count_arg;
+ long n;
+ pos_T old_pos;
+ pos_T start_pos;
+ pos_T end_pos;
+ pos_T old_start, old_end;
+ char_u *spat, *epat;
+ char_u *p;
+ char_u *cp;
+ int len;
+ int r;
+ int do_include = include;
+ int save_p_ws = p_ws;
+ int retval = FAIL;
+ int is_inclusive = TRUE;
+
+ p_ws = FALSE;
+
+ old_pos = curwin->w_cursor;
+ old_end = curwin->w_cursor; /* remember where we started */
+ old_start = old_end;
+ if (!VIsual_active || *p_sel == 'e')
+ decl(&old_end); /* old_end is inclusive */
+
+ /*
+ * If we start on "<aaa>" select that block.
+ */
+ if (!VIsual_active || EQUAL_POS(VIsual, curwin->w_cursor))
+ {
+ setpcmark();
+
+ /* ignore indent */
+ while (inindent(1))
+ if (inc_cursor() != 0)
+ break;
+
+ if (in_html_tag(FALSE))
+ {
+ /* cursor on start tag, move to its '>' */
+ while (*ml_get_cursor() != '>')
+ if (inc_cursor() < 0)
+ break;
+ }
+ else if (in_html_tag(TRUE))
+ {
+ /* cursor on end tag, move to just before it */
+ while (*ml_get_cursor() != '<')
+ if (dec_cursor() < 0)
+ break;
+ dec_cursor();
+ old_end = curwin->w_cursor;
+ }
+ }
+ else if (LT_POS(VIsual, curwin->w_cursor))
+ {
+ old_start = VIsual;
+ curwin->w_cursor = VIsual; /* cursor at low end of Visual */
+ }
+ else
+ old_end = VIsual;
+
+again:
+ /*
+ * Search backwards for unclosed "<aaa>".
+ * Put this position in start_pos.
+ */
+ for (n = 0; n < count; ++n)
+ {
+ if (do_searchpair((char_u *)"<[^ \t>/!]\\+\\%(\\_s\\_[^>]\\{-}[^/]>\\|$\\|\\_s\\=>\\)",
+ (char_u *)"",
+ (char_u *)"</[^>]*>", BACKWARD, NULL, 0,
+ NULL, (linenr_T)0, 0L) <= 0)
+ {
+ curwin->w_cursor = old_pos;
+ goto theend;
+ }
+ }
+ start_pos = curwin->w_cursor;
+
+ /*
+ * Search for matching "</aaa>". First isolate the "aaa".
+ */
+ inc_cursor();
+ p = ml_get_cursor();
+ for (cp = p; *cp != NUL && *cp != '>' && !VIM_ISWHITE(*cp); MB_PTR_ADV(cp))
+ ;
+ len = (int)(cp - p);
+ if (len == 0)
+ {
+ curwin->w_cursor = old_pos;
+ goto theend;
+ }
+ spat = alloc(len + 31);
+ epat = alloc(len + 9);
+ if (spat == NULL || epat == NULL)
+ {
+ vim_free(spat);
+ vim_free(epat);
+ curwin->w_cursor = old_pos;
+ goto theend;
+ }
+ sprintf((char *)spat, "<%.*s\\>\\%%(\\s\\_[^>]\\{-}[^/]>\\|>\\)\\c", len, p);
+ sprintf((char *)epat, "</%.*s>\\c", len, p);
+
+ r = do_searchpair(spat, (char_u *)"", epat, FORWARD, NULL,
+ 0, NULL, (linenr_T)0, 0L);
+
+ vim_free(spat);
+ vim_free(epat);
+
+ if (r < 1 || LT_POS(curwin->w_cursor, old_end))
+ {
+ /* Can't find other end or it's before the previous end. Could be a
+ * HTML tag that doesn't have a matching end. Search backwards for
+ * another starting tag. */
+ count = 1;
+ curwin->w_cursor = start_pos;
+ goto again;
+ }
+
+ if (do_include)
+ {
+ /* Include up to the '>'. */
+ while (*ml_get_cursor() != '>')
+ if (inc_cursor() < 0)
+ break;
+ }
+ else
+ {
+ char_u *c = ml_get_cursor();
+
+ /* Exclude the '<' of the end tag.
+ * If the closing tag is on new line, do not decrement cursor, but
+ * make operation exclusive, so that the linefeed will be selected */
+ if (*c == '<' && !VIsual_active && curwin->w_cursor.col == 0)
+ /* do not decrement cursor */
+ is_inclusive = FALSE;
+ else if (*c == '<')
+ dec_cursor();
+ }
+ end_pos = curwin->w_cursor;
+
+ if (!do_include)
+ {
+ /* Exclude the start tag. */
+ curwin->w_cursor = start_pos;
+ while (inc_cursor() >= 0)
+ if (*ml_get_cursor() == '>')
+ {
+ inc_cursor();
+ start_pos = curwin->w_cursor;
+ break;
+ }
+ curwin->w_cursor = end_pos;
+
+ // If we are in Visual mode and now have the same text as before set
+ // "do_include" and try again.
+ if (VIsual_active && EQUAL_POS(start_pos, old_start)
+ && EQUAL_POS(end_pos, old_end))
+ {
+ do_include = TRUE;
+ curwin->w_cursor = old_start;
+ count = count_arg;
+ goto again;
+ }
+ }
+
+ if (VIsual_active)
+ {
+ /* If the end is before the start there is no text between tags, select
+ * the char under the cursor. */
+ if (LT_POS(end_pos, start_pos))
+ curwin->w_cursor = start_pos;
+ else if (*p_sel == 'e')
+ inc_cursor();
+ VIsual = start_pos;
+ VIsual_mode = 'v';
+ redraw_curbuf_later(INVERTED); /* update the inversion */
+ showmode();
+ }
+ else
+ {
+ oap->start = start_pos;
+ oap->motion_type = MCHAR;
+ if (LT_POS(end_pos, start_pos))
+ {
+ /* End is before the start: there is no text between tags; operate
+ * on an empty area. */
+ curwin->w_cursor = start_pos;
+ oap->inclusive = FALSE;
+ }
+ else
+ oap->inclusive = is_inclusive;
+ }
+ retval = OK;
+
+theend:
+ p_ws = save_p_ws;
+ return retval;
+}
+
+ int
+current_par(
+ oparg_T *oap,
+ long count,
+ int include, /* TRUE == include white space */
+ int type) /* 'p' for paragraph, 'S' for section */
+{
+ linenr_T start_lnum;
+ linenr_T end_lnum;
+ int white_in_front;
+ int dir;
+ int start_is_white;
+ int prev_start_is_white;
+ int retval = OK;
+ int do_white = FALSE;
+ int t;
+ int i;
+
+ if (type == 'S') /* not implemented yet */
+ return FAIL;
+
+ start_lnum = curwin->w_cursor.lnum;
+
+ /*
+ * When visual area is more than one line: extend it.
+ */
+ if (VIsual_active && start_lnum != VIsual.lnum)
+ {
+extend:
+ if (start_lnum < VIsual.lnum)
+ dir = BACKWARD;
+ else
+ dir = FORWARD;
+ for (i = count; --i >= 0; )
+ {
+ if (start_lnum ==
+ (dir == BACKWARD ? 1 : curbuf->b_ml.ml_line_count))
+ {
+ retval = FAIL;
+ break;
+ }
+
+ prev_start_is_white = -1;
+ for (t = 0; t < 2; ++t)
+ {
+ start_lnum += dir;
+ start_is_white = linewhite(start_lnum);
+ if (prev_start_is_white == start_is_white)
+ {
+ start_lnum -= dir;
+ break;
+ }
+ for (;;)
+ {
+ if (start_lnum == (dir == BACKWARD
+ ? 1 : curbuf->b_ml.ml_line_count))
+ break;
+ if (start_is_white != linewhite(start_lnum + dir)
+ || (!start_is_white
+ && startPS(start_lnum + (dir > 0
+ ? 1 : 0), 0, 0)))
+ break;
+ start_lnum += dir;
+ }
+ if (!include)
+ break;
+ if (start_lnum == (dir == BACKWARD
+ ? 1 : curbuf->b_ml.ml_line_count))
+ break;
+ prev_start_is_white = start_is_white;
+ }
+ }
+ curwin->w_cursor.lnum = start_lnum;
+ curwin->w_cursor.col = 0;
+ return retval;
+ }
+
+ /*
+ * First move back to the start_lnum of the paragraph or white lines
+ */
+ white_in_front = linewhite(start_lnum);
+ while (start_lnum > 1)
+ {
+ if (white_in_front) /* stop at first white line */
+ {
+ if (!linewhite(start_lnum - 1))
+ break;
+ }
+ else /* stop at first non-white line of start of paragraph */
+ {
+ if (linewhite(start_lnum - 1) || startPS(start_lnum, 0, 0))
+ break;
+ }
+ --start_lnum;
+ }
+
+ /*
+ * Move past the end of any white lines.
+ */
+ end_lnum = start_lnum;
+ while (end_lnum <= curbuf->b_ml.ml_line_count && linewhite(end_lnum))
+ ++end_lnum;
+
+ --end_lnum;
+ i = count;
+ if (!include && white_in_front)
+ --i;
+ while (i--)
+ {
+ if (end_lnum == curbuf->b_ml.ml_line_count)
+ return FAIL;
+
+ if (!include)
+ do_white = linewhite(end_lnum + 1);
+
+ if (include || !do_white)
+ {
+ ++end_lnum;
+ /*
+ * skip to end of paragraph
+ */
+ while (end_lnum < curbuf->b_ml.ml_line_count
+ && !linewhite(end_lnum + 1)
+ && !startPS(end_lnum + 1, 0, 0))
+ ++end_lnum;
+ }
+
+ if (i == 0 && white_in_front && include)
+ break;
+
+ /*
+ * skip to end of white lines after paragraph
+ */
+ if (include || do_white)
+ while (end_lnum < curbuf->b_ml.ml_line_count
+ && linewhite(end_lnum + 1))
+ ++end_lnum;
+ }
+
+ /*
+ * If there are no empty lines at the end, try to find some empty lines at
+ * the start (unless that has been done already).
+ */
+ if (!white_in_front && !linewhite(end_lnum) && include)
+ while (start_lnum > 1 && linewhite(start_lnum - 1))
+ --start_lnum;
+
+ if (VIsual_active)
+ {
+ /* Problem: when doing "Vipipip" nothing happens in a single white
+ * line, we get stuck there. Trap this here. */
+ if (VIsual_mode == 'V' && start_lnum == curwin->w_cursor.lnum)
+ goto extend;
+ if (VIsual.lnum != start_lnum)
+ {
+ VIsual.lnum = start_lnum;
+ VIsual.col = 0;
+ }
+ VIsual_mode = 'V';
+ redraw_curbuf_later(INVERTED); /* update the inversion */
+ showmode();
+ }
+ else
+ {
+ oap->start.lnum = start_lnum;
+ oap->start.col = 0;
+ oap->motion_type = MLINE;
+ }
+ curwin->w_cursor.lnum = end_lnum;
+ curwin->w_cursor.col = 0;
+
+ return OK;
+}
+
+/*
+ * Search quote char from string line[col].
+ * Quote character escaped by one of the characters in "escape" is not counted
+ * as a quote.
+ * Returns column number of "quotechar" or -1 when not found.
+ */
+ static int
+find_next_quote(
+ char_u *line,
+ int col,
+ int quotechar,
+ char_u *escape) /* escape characters, can be NULL */
+{
+ int c;
+
+ for (;;)
+ {
+ c = line[col];
+ if (c == NUL)
+ return -1;
+ else if (escape != NULL && vim_strchr(escape, c))
+ ++col;
+ else if (c == quotechar)
+ break;
+ if (has_mbyte)
+ col += (*mb_ptr2len)(line + col);
+ else
+ ++col;
+ }
+ return col;
+}
+
+/*
+ * Search backwards in "line" from column "col_start" to find "quotechar".
+ * Quote character escaped by one of the characters in "escape" is not counted
+ * as a quote.
+ * Return the found column or zero.
+ */
+ static int
+find_prev_quote(
+ char_u *line,
+ int col_start,
+ int quotechar,
+ char_u *escape) /* escape characters, can be NULL */
+{
+ int n;
+
+ while (col_start > 0)
+ {
+ --col_start;
+ col_start -= (*mb_head_off)(line, line + col_start);
+ n = 0;
+ if (escape != NULL)
+ while (col_start - n > 0 && vim_strchr(escape,
+ line[col_start - n - 1]) != NULL)
+ ++n;
+ if (n & 1)
+ col_start -= n; /* uneven number of escape chars, skip it */
+ else if (line[col_start] == quotechar)
+ break;
+ }
+ return col_start;
+}
+
+/*
+ * Find quote under the cursor, cursor at end.
+ * Returns TRUE if found, else FALSE.
+ */
+ int
+current_quote(
+ oparg_T *oap,
+ long count,
+ int include, /* TRUE == include quote char */
+ int quotechar) /* Quote character */
+{
+ char_u *line = ml_get_curline();
+ int col_end;
+ int col_start = curwin->w_cursor.col;
+ int inclusive = FALSE;
+ int vis_empty = TRUE; /* Visual selection <= 1 char */
+ int vis_bef_curs = FALSE; /* Visual starts before cursor */
+ int inside_quotes = FALSE; /* Looks like "i'" done before */
+ int selected_quote = FALSE; /* Has quote inside selection */
+ int i;
+
+ /* Correct cursor when 'selection' is "exclusive". */
+ if (VIsual_active)
+ {
+ /* this only works within one line */
+ if (VIsual.lnum != curwin->w_cursor.lnum)
+ return FALSE;
+
+ vis_bef_curs = LT_POS(VIsual, curwin->w_cursor);
+ if (*p_sel == 'e')
+ {
+ if (!vis_bef_curs)
+ {
+ /* VIsual needs to be start of Visual selection. */
+ pos_T t = curwin->w_cursor;
+
+ curwin->w_cursor = VIsual;
+ VIsual = t;
+ vis_bef_curs = TRUE;
+ }
+ dec_cursor();
+ }
+ vis_empty = EQUAL_POS(VIsual, curwin->w_cursor);
+ }
+
+ if (!vis_empty)
+ {
+ /* Check if the existing selection exactly spans the text inside
+ * quotes. */
+ if (vis_bef_curs)
+ {
+ inside_quotes = VIsual.col > 0
+ && line[VIsual.col - 1] == quotechar
+ && line[curwin->w_cursor.col] != NUL
+ && line[curwin->w_cursor.col + 1] == quotechar;
+ i = VIsual.col;
+ col_end = curwin->w_cursor.col;
+ }
+ else
+ {
+ inside_quotes = curwin->w_cursor.col > 0
+ && line[curwin->w_cursor.col - 1] == quotechar
+ && line[VIsual.col] != NUL
+ && line[VIsual.col + 1] == quotechar;
+ i = curwin->w_cursor.col;
+ col_end = VIsual.col;
+ }
+
+ /* Find out if we have a quote in the selection. */
+ while (i <= col_end)
+ if (line[i++] == quotechar)
+ {
+ selected_quote = TRUE;
+ break;
+ }
+ }
+
+ if (!vis_empty && line[col_start] == quotechar)
+ {
+ /* Already selecting something and on a quote character. Find the
+ * next quoted string. */
+ if (vis_bef_curs)
+ {
+ /* Assume we are on a closing quote: move to after the next
+ * opening quote. */
+ col_start = find_next_quote(line, col_start + 1, quotechar, NULL);
+ if (col_start < 0)
+ return FALSE;
+ col_end = find_next_quote(line, col_start + 1, quotechar,
+ curbuf->b_p_qe);
+ if (col_end < 0)
+ {
+ /* We were on a starting quote perhaps? */
+ col_end = col_start;
+ col_start = curwin->w_cursor.col;
+ }
+ }
+ else
+ {
+ col_end = find_prev_quote(line, col_start, quotechar, NULL);
+ if (line[col_end] != quotechar)
+ return FALSE;
+ col_start = find_prev_quote(line, col_end, quotechar,
+ curbuf->b_p_qe);
+ if (line[col_start] != quotechar)
+ {
+ /* We were on an ending quote perhaps? */
+ col_start = col_end;
+ col_end = curwin->w_cursor.col;
+ }
+ }
+ }
+ else
+
+ if (line[col_start] == quotechar || !vis_empty)
+ {
+ int first_col = col_start;
+
+ if (!vis_empty)
+ {
+ if (vis_bef_curs)
+ first_col = find_next_quote(line, col_start, quotechar, NULL);
+ else
+ first_col = find_prev_quote(line, col_start, quotechar, NULL);
+ }
+
+ /* The cursor is on a quote, we don't know if it's the opening or
+ * closing quote. Search from the start of the line to find out.
+ * Also do this when there is a Visual area, a' may leave the cursor
+ * in between two strings. */
+ col_start = 0;
+ for (;;)
+ {
+ /* Find open quote character. */
+ col_start = find_next_quote(line, col_start, quotechar, NULL);
+ if (col_start < 0 || col_start > first_col)
+ return FALSE;
+ /* Find close quote character. */
+ col_end = find_next_quote(line, col_start + 1, quotechar,
+ curbuf->b_p_qe);
+ if (col_end < 0)
+ return FALSE;
+ /* If is cursor between start and end quote character, it is
+ * target text object. */
+ if (col_start <= first_col && first_col <= col_end)
+ break;
+ col_start = col_end + 1;
+ }
+ }
+ else
+ {
+ /* Search backward for a starting quote. */
+ col_start = find_prev_quote(line, col_start, quotechar, curbuf->b_p_qe);
+ if (line[col_start] != quotechar)
+ {
+ /* No quote before the cursor, look after the cursor. */
+ col_start = find_next_quote(line, col_start, quotechar, NULL);
+ if (col_start < 0)
+ return FALSE;
+ }
+
+ /* Find close quote character. */
+ col_end = find_next_quote(line, col_start + 1, quotechar,
+ curbuf->b_p_qe);
+ if (col_end < 0)
+ return FALSE;
+ }
+
+ /* When "include" is TRUE, include spaces after closing quote or before
+ * the starting quote. */
+ if (include)
+ {
+ if (VIM_ISWHITE(line[col_end + 1]))
+ while (VIM_ISWHITE(line[col_end + 1]))
+ ++col_end;
+ else
+ while (col_start > 0 && VIM_ISWHITE(line[col_start - 1]))
+ --col_start;
+ }
+
+ /* Set start position. After vi" another i" must include the ".
+ * For v2i" include the quotes. */
+ if (!include && count < 2 && (vis_empty || !inside_quotes))
+ ++col_start;
+ curwin->w_cursor.col = col_start;
+ if (VIsual_active)
+ {
+ /* Set the start of the Visual area when the Visual area was empty, we
+ * were just inside quotes or the Visual area didn't start at a quote
+ * and didn't include a quote.
+ */
+ if (vis_empty
+ || (vis_bef_curs
+ && !selected_quote
+ && (inside_quotes
+ || (line[VIsual.col] != quotechar
+ && (VIsual.col == 0
+ || line[VIsual.col - 1] != quotechar)))))
+ {
+ VIsual = curwin->w_cursor;
+ redraw_curbuf_later(INVERTED);
+ }
+ }
+ else
+ {
+ oap->start = curwin->w_cursor;
+ oap->motion_type = MCHAR;
+ }
+
+ /* Set end position. */
+ curwin->w_cursor.col = col_end;
+ if ((include || count > 1 /* After vi" another i" must include the ". */
+ || (!vis_empty && inside_quotes)
+ ) && inc_cursor() == 2)
+ inclusive = TRUE;
+ if (VIsual_active)
+ {
+ if (vis_empty || vis_bef_curs)
+ {
+ /* decrement cursor when 'selection' is not exclusive */
+ if (*p_sel != 'e')
+ dec_cursor();
+ }
+ else
+ {
+ /* Cursor is at start of Visual area. Set the end of the Visual
+ * area when it was just inside quotes or it didn't end at a
+ * quote. */
+ if (inside_quotes
+ || (!selected_quote
+ && line[VIsual.col] != quotechar
+ && (line[VIsual.col] == NUL
+ || line[VIsual.col + 1] != quotechar)))
+ {
+ dec_cursor();
+ VIsual = curwin->w_cursor;
+ }
+ curwin->w_cursor.col = col_start;
+ }
+ if (VIsual_mode == 'V')
+ {
+ VIsual_mode = 'v';
+ redraw_cmdline = TRUE; /* show mode later */
+ }
+ }
+ else
+ {
+ /* Set inclusive and other oap's flags. */
+ oap->inclusive = inclusive;
+ }
+
+ return OK;
+}
+
+#endif /* FEAT_TEXTOBJ */
+
+static int is_one_char(char_u *pattern, int move, pos_T *cur, int direction);
+
+/*
+ * Find next search match under cursor, cursor at end.
+ * Used while an operator is pending, and in Visual mode.
+ */
+ int
+current_search(
+ long count,
+ int forward) // TRUE for forward, FALSE for backward
+{
+ pos_T start_pos; // start position of the pattern match
+ pos_T end_pos; // end position of the pattern match
+ pos_T orig_pos; // position of the cursor at beginning
+ pos_T pos; // position after the pattern
+ int i;
+ int dir;
+ int result; // result of various function calls
+ char_u old_p_ws = p_ws;
+ int flags = 0;
+ pos_T save_VIsual = VIsual;
+ int one_char;
+
+ /* wrapping should not occur */
+ p_ws = FALSE;
+
+ /* Correct cursor when 'selection' is exclusive */
+ if (VIsual_active && *p_sel == 'e' && LT_POS(VIsual, curwin->w_cursor))
+ dec_cursor();
+
+ if (VIsual_active)
+ {
+ orig_pos = curwin->w_cursor;
+
+ pos = curwin->w_cursor;
+
+ /* make sure, searching further will extend the match */
+ if (VIsual_active)
+ {
+ if (forward)
+ incl(&pos);
+ else
+ decl(&pos);
+ }
+ }
+ else
+ orig_pos = pos = curwin->w_cursor;
+
+ /* Is the pattern is zero-width?, this time, don't care about the direction
+ */
+ one_char = is_one_char(spats[last_idx].pat, TRUE, &curwin->w_cursor,
+ FORWARD);
+ if (one_char == -1)
+ {
+ p_ws = old_p_ws;
+ return FAIL; /* pattern not found */
+ }
+
+ /*
+ * The trick is to first search backwards and then search forward again,
+ * so that a match at the current cursor position will be correctly
+ * captured.
+ */
+ for (i = 0; i < 2; i++)
+ {
+ if (forward)
+ dir = i;
+ else
+ dir = !i;
+
+ flags = 0;
+ if (!dir && !one_char)
+ flags = SEARCH_END;
+ end_pos = pos;
+
+ result = searchit(curwin, curbuf, &pos, &end_pos,
+ (dir ? FORWARD : BACKWARD),
+ spats[last_idx].pat, (long) (i ? count : 1),
+ SEARCH_KEEP | flags, RE_SEARCH, 0, NULL, NULL);
+
+ /* First search may fail, but then start searching from the
+ * beginning of the file (cursor might be on the search match)
+ * except when Visual mode is active, so that extending the visual
+ * selection works. */
+ if (i == 1 && !result) /* not found, abort */
+ {
+ curwin->w_cursor = orig_pos;
+ if (VIsual_active)
+ VIsual = save_VIsual;
+ p_ws = old_p_ws;
+ return FAIL;
+ }
+ else if (i == 0 && !result)
+ {
+ if (forward)
+ {
+ /* try again from start of buffer */
+ CLEAR_POS(&pos);
+ }
+ else
+ {
+ /* try again from end of buffer */
+ /* searching backwards, so set pos to last line and col */
+ pos.lnum = curwin->w_buffer->b_ml.ml_line_count;
+ pos.col = (colnr_T)STRLEN(
+ ml_get(curwin->w_buffer->b_ml.ml_line_count));
+ }
+ }
+ p_ws = old_p_ws;
+ }
+
+ start_pos = pos;
+ p_ws = old_p_ws;
+
+ if (!VIsual_active)
+ VIsual = start_pos;
+
+ // put cursor on last character of match
+ curwin->w_cursor = end_pos;
+ if (LT_POS(VIsual, end_pos))
+ dec_cursor();
+ VIsual_active = TRUE;
+ VIsual_mode = 'v';
+
+ if (VIsual_active)
+ {
+ redraw_curbuf_later(INVERTED); /* update the inversion */
+ if (*p_sel == 'e')
+ {
+ /* Correction for exclusive selection depends on the direction. */
+ if (forward && LTOREQ_POS(VIsual, curwin->w_cursor))
+ inc_cursor();
+ else if (!forward && LTOREQ_POS(curwin->w_cursor, VIsual))
+ inc(&VIsual);
+ }
+
+ }
+
+#ifdef FEAT_FOLDING
+ if (fdo_flags & FDO_SEARCH && KeyTyped)
+ foldOpenCursor();
+#endif
+
+ may_start_select('c');
+#ifdef FEAT_MOUSE
+ setmouse();
+#endif
+#ifdef FEAT_CLIPBOARD
+ /* Make sure the clipboard gets updated. Needed because start and
+ * end are still the same, and the selection needs to be owned */
+ clip_star.vmode = NUL;
+#endif
+ redraw_curbuf_later(INVERTED);
+ showmode();
+
+ return OK;
+}
+
+/*
+ * Check if the pattern is one character long or zero-width.
+ * If move is TRUE, check from the beginning of the buffer, else from position
+ * "cur".
+ * "direction" is FORWARD or BACKWARD.
+ * Returns TRUE, FALSE or -1 for failure.
+ */
+ static int
+is_one_char(char_u *pattern, int move, pos_T *cur, int direction)
+{
+ regmmatch_T regmatch;
+ int nmatched = 0;
+ int result = -1;
+ pos_T pos;
+ int save_called_emsg = called_emsg;
+ int flag = 0;
+
+ if (pattern == NULL)
+ pattern = spats[last_idx].pat;
+
+ if (search_regcomp(pattern, RE_SEARCH, RE_SEARCH,
+ SEARCH_KEEP, &regmatch) == FAIL)
+ return -1;
+
+ /* init startcol correctly */
+ regmatch.startpos[0].col = -1;
+ /* move to match */
+ if (move)
+ {
+ CLEAR_POS(&pos);
+ }
+ else
+ {
+ pos = *cur;
+ /* accept a match at the cursor position */
+ flag = SEARCH_START;
+ }
+
+ if (searchit(curwin, curbuf, &pos, NULL, direction, pattern, 1,
+ SEARCH_KEEP + flag, RE_SEARCH, 0, NULL, NULL) != FAIL)
+ {
+ /* Zero-width pattern should match somewhere, then we can check if
+ * start and end are in the same position. */
+ called_emsg = FALSE;
+ do
+ {
+ regmatch.startpos[0].col++;
+ nmatched = vim_regexec_multi(&regmatch, curwin, curbuf,
+ pos.lnum, regmatch.startpos[0].col, NULL, NULL);
+ if (!nmatched)
+ break;
+ } while (direction == FORWARD ? regmatch.startpos[0].col < pos.col
+ : regmatch.startpos[0].col > pos.col);
+
+ if (!called_emsg)
+ {
+ result = (nmatched != 0
+ && regmatch.startpos[0].lnum == regmatch.endpos[0].lnum
+ && regmatch.startpos[0].col == regmatch.endpos[0].col);
+ /* one char width */
+ if (!result && inc(&pos) >= 0 && pos.col == regmatch.endpos[0].col)
+ result = TRUE;
+ }
+ }
+
+ called_emsg |= save_called_emsg;
+ vim_regfree(regmatch.regprog);
+ return result;
+}
+
+#if defined(FEAT_LISP) || defined(FEAT_CINDENT) || defined(FEAT_TEXTOBJ) \
+ || defined(PROTO)
+/*
+ * return TRUE if line 'lnum' is empty or has white chars only.
+ */
+ int
+linewhite(linenr_T lnum)
+{
+ char_u *p;
+
+ p = skipwhite(ml_get(lnum));
+ return (*p == NUL);
+}
+#endif
+
+#if defined(FEAT_FIND_ID) || defined(PROTO)
+/*
+ * Find identifiers or defines in included files.
+ * If p_ic && (compl_cont_status & CONT_SOL) then ptr must be in lowercase.
+ */
+ void
+find_pattern_in_path(
+ char_u *ptr, /* pointer to search pattern */
+ int dir UNUSED, /* direction of expansion */
+ int len, /* length of search pattern */
+ int whole, /* match whole words only */
+ int skip_comments, /* don't match inside comments */
+ int type, /* Type of search; are we looking for a type?
+ a macro? */
+ long count,
+ int action, /* What to do when we find it */
+ linenr_T start_lnum, /* first line to start searching */
+ linenr_T end_lnum) /* last line for searching */
+{
+ SearchedFile *files; /* Stack of included files */
+ SearchedFile *bigger; /* When we need more space */
+ int max_path_depth = 50;
+ long match_count = 1;
+
+ char_u *pat;
+ char_u *new_fname;
+ char_u *curr_fname = curbuf->b_fname;
+ char_u *prev_fname = NULL;
+ linenr_T lnum;
+ int depth;
+ int depth_displayed; /* For type==CHECK_PATH */
+ int old_files;
+ int already_searched;
+ char_u *file_line;
+ char_u *line;
+ char_u *p;
+ char_u save_char;
+ int define_matched;
+ regmatch_T regmatch;
+ regmatch_T incl_regmatch;
+ regmatch_T def_regmatch;
+ int matched = FALSE;
+ int did_show = FALSE;
+ int found = FALSE;
+ int i;
+ char_u *already = NULL;
+ char_u *startp = NULL;
+ char_u *inc_opt = NULL;
+#if defined(FEAT_QUICKFIX)
+ win_T *curwin_save = NULL;
+#endif
+
+ regmatch.regprog = NULL;
+ incl_regmatch.regprog = NULL;
+ def_regmatch.regprog = NULL;
+
+ file_line = alloc(LSIZE);
+ if (file_line == NULL)
+ return;
+
+ if (type != CHECK_PATH && type != FIND_DEFINE
+#ifdef FEAT_INS_EXPAND
+ /* when CONT_SOL is set compare "ptr" with the beginning of the line
+ * is faster than quote_meta/regcomp/regexec "ptr" -- Acevedo */
+ && !(compl_cont_status & CONT_SOL)
+#endif
+ )
+ {
+ pat = alloc(len + 5);
+ if (pat == NULL)
+ goto fpip_end;
+ sprintf((char *)pat, whole ? "\\<%.*s\\>" : "%.*s", len, ptr);
+ /* ignore case according to p_ic, p_scs and pat */
+ regmatch.rm_ic = ignorecase(pat);
+ regmatch.regprog = vim_regcomp(pat, p_magic ? RE_MAGIC : 0);
+ vim_free(pat);
+ if (regmatch.regprog == NULL)
+ goto fpip_end;
+ }
+ inc_opt = (*curbuf->b_p_inc == NUL) ? p_inc : curbuf->b_p_inc;
+ if (*inc_opt != NUL)
+ {
+ incl_regmatch.regprog = vim_regcomp(inc_opt, p_magic ? RE_MAGIC : 0);
+ if (incl_regmatch.regprog == NULL)
+ goto fpip_end;
+ incl_regmatch.rm_ic = FALSE; /* don't ignore case in incl. pat. */
+ }
+ if (type == FIND_DEFINE && (*curbuf->b_p_def != NUL || *p_def != NUL))
+ {
+ def_regmatch.regprog = vim_regcomp(*curbuf->b_p_def == NUL
+ ? p_def : curbuf->b_p_def, p_magic ? RE_MAGIC : 0);
+ if (def_regmatch.regprog == NULL)
+ goto fpip_end;
+ def_regmatch.rm_ic = FALSE; /* don't ignore case in define pat. */
+ }
+ files = (SearchedFile *)lalloc_clear((long_u)
+ (max_path_depth * sizeof(SearchedFile)), TRUE);
+ if (files == NULL)
+ goto fpip_end;
+ old_files = max_path_depth;
+ depth = depth_displayed = -1;
+
+ lnum = start_lnum;
+ if (end_lnum > curbuf->b_ml.ml_line_count)
+ end_lnum = curbuf->b_ml.ml_line_count;
+ if (lnum > end_lnum) /* do at least one line */
+ lnum = end_lnum;
+ line = ml_get(lnum);
+
+ for (;;)
+ {
+ if (incl_regmatch.regprog != NULL
+ && vim_regexec(&incl_regmatch, line, (colnr_T)0))
+ {
+ char_u *p_fname = (curr_fname == curbuf->b_fname)
+ ? curbuf->b_ffname : curr_fname;
+
+ if (inc_opt != NULL && strstr((char *)inc_opt, "\\zs") != NULL)
+ /* Use text from '\zs' to '\ze' (or end) of 'include'. */
+ new_fname = find_file_name_in_path(incl_regmatch.startp[0],
+ (int)(incl_regmatch.endp[0] - incl_regmatch.startp[0]),
+ FNAME_EXP|FNAME_INCL|FNAME_REL, 1L, p_fname);
+ else
+ /* Use text after match with 'include'. */
+ new_fname = file_name_in_line(incl_regmatch.endp[0], 0,
+ FNAME_EXP|FNAME_INCL|FNAME_REL, 1L, p_fname, NULL);
+ already_searched = FALSE;
+ if (new_fname != NULL)
+ {
+ /* Check whether we have already searched in this file */
+ for (i = 0;; i++)
+ {
+ if (i == depth + 1)
+ i = old_files;
+ if (i == max_path_depth)
+ break;
+ if (fullpathcmp(new_fname, files[i].name, TRUE) & FPC_SAME)
+ {
+ if (type != CHECK_PATH &&
+ action == ACTION_SHOW_ALL && files[i].matched)
+ {
+ msg_putchar('\n'); /* cursor below last one */
+ if (!got_int) /* don't display if 'q'
+ typed at "--more--"
+ message */
+ {
+ msg_home_replace_hl(new_fname);
+ msg_puts(_(" (includes previously listed match)"));
+ prev_fname = NULL;
+ }
+ }
+ VIM_CLEAR(new_fname);
+ already_searched = TRUE;
+ break;
+ }
+ }
+ }
+
+ if (type == CHECK_PATH && (action == ACTION_SHOW_ALL
+ || (new_fname == NULL && !already_searched)))
+ {
+ if (did_show)
+ msg_putchar('\n'); /* cursor below last one */
+ else
+ {
+ gotocmdline(TRUE); /* cursor at status line */
+ msg_puts_title(_("--- Included files "));
+ if (action != ACTION_SHOW_ALL)
+ msg_puts_title(_("not found "));
+ msg_puts_title(_("in path ---\n"));
+ }
+ did_show = TRUE;
+ while (depth_displayed < depth && !got_int)
+ {
+ ++depth_displayed;
+ for (i = 0; i < depth_displayed; i++)
+ msg_puts(" ");
+ msg_home_replace(files[depth_displayed].name);
+ msg_puts(" -->\n");
+ }
+ if (!got_int) /* don't display if 'q' typed
+ for "--more--" message */
+ {
+ for (i = 0; i <= depth_displayed; i++)
+ msg_puts(" ");
+ if (new_fname != NULL)
+ {
+ /* using "new_fname" is more reliable, e.g., when
+ * 'includeexpr' is set. */
+ msg_outtrans_attr(new_fname, HL_ATTR(HLF_D));
+ }
+ else
+ {
+ /*
+ * Isolate the file name.
+ * Include the surrounding "" or <> if present.
+ */
+ if (inc_opt != NULL
+ && strstr((char *)inc_opt, "\\zs") != NULL)
+ {
+ /* pattern contains \zs, use the match */
+ p = incl_regmatch.startp[0];
+ i = (int)(incl_regmatch.endp[0]
+ - incl_regmatch.startp[0]);
+ }
+ else
+ {
+ /* find the file name after the end of the match */
+ for (p = incl_regmatch.endp[0];
+ *p && !vim_isfilec(*p); p++)
+ ;
+ for (i = 0; vim_isfilec(p[i]); i++)
+ ;
+ }
+
+ if (i == 0)
+ {
+ /* Nothing found, use the rest of the line. */
+ p = incl_regmatch.endp[0];
+ i = (int)STRLEN(p);
+ }
+ /* Avoid checking before the start of the line, can
+ * happen if \zs appears in the regexp. */
+ else if (p > line)
+ {
+ if (p[-1] == '"' || p[-1] == '<')
+ {
+ --p;
+ ++i;
+ }
+ if (p[i] == '"' || p[i] == '>')
+ ++i;
+ }
+ save_char = p[i];
+ p[i] = NUL;
+ msg_outtrans_attr(p, HL_ATTR(HLF_D));
+ p[i] = save_char;
+ }
+
+ if (new_fname == NULL && action == ACTION_SHOW_ALL)
+ {
+ if (already_searched)
+ msg_puts(_(" (Already listed)"));
+ else
+ msg_puts(_(" NOT FOUND"));
+ }
+ }
+ out_flush(); /* output each line directly */
+ }
+
+ if (new_fname != NULL)
+ {
+ /* Push the new file onto the file stack */
+ if (depth + 1 == old_files)
+ {
+ bigger = (SearchedFile *)lalloc((long_u)(
+ max_path_depth * 2 * sizeof(SearchedFile)), TRUE);
+ if (bigger != NULL)
+ {
+ for (i = 0; i <= depth; i++)
+ bigger[i] = files[i];
+ for (i = depth + 1; i < old_files + max_path_depth; i++)
+ {
+ bigger[i].fp = NULL;
+ bigger[i].name = NULL;
+ bigger[i].lnum = 0;
+ bigger[i].matched = FALSE;
+ }
+ for (i = old_files; i < max_path_depth; i++)
+ bigger[i + max_path_depth] = files[i];
+ old_files += max_path_depth;
+ max_path_depth *= 2;
+ vim_free(files);
+ files = bigger;
+ }
+ }
+ if ((files[depth + 1].fp = mch_fopen((char *)new_fname, "r"))
+ == NULL)
+ vim_free(new_fname);
+ else
+ {
+ if (++depth == old_files)
+ {
+ /*
+ * lalloc() for 'bigger' must have failed above. We
+ * will forget one of our already visited files now.
+ */
+ vim_free(files[old_files].name);
+ ++old_files;
+ }
+ files[depth].name = curr_fname = new_fname;
+ files[depth].lnum = 0;
+ files[depth].matched = FALSE;
+#ifdef FEAT_INS_EXPAND
+ if (action == ACTION_EXPAND)
+ {
+ msg_hist_off = TRUE; /* reset in msg_trunc_attr() */
+ vim_snprintf((char*)IObuff, IOSIZE,
+ _("Scanning included file: %s"),
+ (char *)new_fname);
+ msg_trunc_attr((char *)IObuff, TRUE, HL_ATTR(HLF_R));
+ }
+ else
+#endif
+ if (p_verbose >= 5)
+ {
+ verbose_enter();
+ smsg(_("Searching included file %s"),
+ (char *)new_fname);
+ verbose_leave();
+ }
+
+ }
+ }
+ }
+ else
+ {
+ /*
+ * Check if the line is a define (type == FIND_DEFINE)
+ */
+ p = line;
+search_line:
+ define_matched = FALSE;
+ if (def_regmatch.regprog != NULL
+ && vim_regexec(&def_regmatch, line, (colnr_T)0))
+ {
+ /*
+ * Pattern must be first identifier after 'define', so skip
+ * to that position before checking for match of pattern. Also
+ * don't let it match beyond the end of this identifier.
+ */
+ p = def_regmatch.endp[0];
+ while (*p && !vim_iswordc(*p))
+ p++;
+ define_matched = TRUE;
+ }
+
+ /*
+ * Look for a match. Don't do this if we are looking for a
+ * define and this line didn't match define_prog above.
+ */
+ if (def_regmatch.regprog == NULL || define_matched)
+ {
+ if (define_matched
+#ifdef FEAT_INS_EXPAND
+ || (compl_cont_status & CONT_SOL)
+#endif
+ )
+ {
+ /* compare the first "len" chars from "ptr" */
+ startp = skipwhite(p);
+ if (p_ic)
+ matched = !MB_STRNICMP(startp, ptr, len);
+ else
+ matched = !STRNCMP(startp, ptr, len);
+ if (matched && define_matched && whole
+ && vim_iswordc(startp[len]))
+ matched = FALSE;
+ }
+ else if (regmatch.regprog != NULL
+ && vim_regexec(&regmatch, line, (colnr_T)(p - line)))
+ {
+ matched = TRUE;
+ startp = regmatch.startp[0];
+ /*
+ * Check if the line is not a comment line (unless we are
+ * looking for a define). A line starting with "# define"
+ * is not considered to be a comment line.
+ */
+ if (!define_matched && skip_comments)
+ {
+#ifdef FEAT_COMMENTS
+ if ((*line != '#' ||
+ STRNCMP(skipwhite(line + 1), "define", 6) != 0)
+ && get_leader_len(line, NULL, FALSE, TRUE))
+ matched = FALSE;
+
+ /*
+ * Also check for a "/ *" or "/ /" before the match.
+ * Skips lines like "int backwards; / * normal index
+ * * /" when looking for "normal".
+ * Note: Doesn't skip "/ *" in comments.
+ */
+ p = skipwhite(line);
+ if (matched
+ || (p[0] == '/' && p[1] == '*') || p[0] == '*')
+#endif
+ for (p = line; *p && p < startp; ++p)
+ {
+ if (matched
+ && p[0] == '/'
+ && (p[1] == '*' || p[1] == '/'))
+ {
+ matched = FALSE;
+ /* After "//" all text is comment */
+ if (p[1] == '/')
+ break;
+ ++p;
+ }
+ else if (!matched && p[0] == '*' && p[1] == '/')
+ {
+ /* Can find match after "* /". */
+ matched = TRUE;
+ ++p;
+ }
+ }
+ }
+ }
+ }
+ }
+ if (matched)
+ {
+#ifdef FEAT_INS_EXPAND
+ if (action == ACTION_EXPAND)
+ {
+ int reuse = 0;
+ int add_r;
+ char_u *aux;
+
+ if (depth == -1 && lnum == curwin->w_cursor.lnum)
+ break;
+ found = TRUE;
+ aux = p = startp;
+ if (compl_cont_status & CONT_ADDING)
+ {
+ p += compl_length;
+ if (vim_iswordp(p))
+ goto exit_matched;
+ p = find_word_start(p);
+ }
+ p = find_word_end(p);
+ i = (int)(p - aux);
+
+ if ((compl_cont_status & CONT_ADDING) && i == compl_length)
+ {
+ /* IOSIZE > compl_length, so the STRNCPY works */
+ STRNCPY(IObuff, aux, i);
+
+ /* Get the next line: when "depth" < 0 from the current
+ * buffer, otherwise from the included file. Jump to
+ * exit_matched when past the last line. */
+ if (depth < 0)
+ {
+ if (lnum >= end_lnum)
+ goto exit_matched;
+ line = ml_get(++lnum);
+ }
+ else if (vim_fgets(line = file_line,
+ LSIZE, files[depth].fp))
+ goto exit_matched;
+
+ /* we read a line, set "already" to check this "line" later
+ * if depth >= 0 we'll increase files[depth].lnum far
+ * bellow -- Acevedo */
+ already = aux = p = skipwhite(line);
+ p = find_word_start(p);
+ p = find_word_end(p);
+ if (p > aux)
+ {
+ if (*aux != ')' && IObuff[i-1] != TAB)
+ {
+ if (IObuff[i-1] != ' ')
+ IObuff[i++] = ' ';
+ /* IObuf =~ "\(\k\|\i\).* ", thus i >= 2*/
+ if (p_js
+ && (IObuff[i-2] == '.'
+ || (vim_strchr(p_cpo, CPO_JOINSP) == NULL
+ && (IObuff[i-2] == '?'
+ || IObuff[i-2] == '!'))))
+ IObuff[i++] = ' ';
+ }
+ /* copy as much as possible of the new word */
+ if (p - aux >= IOSIZE - i)
+ p = aux + IOSIZE - i - 1;
+ STRNCPY(IObuff + i, aux, p - aux);
+ i += (int)(p - aux);
+ reuse |= CONT_S_IPOS;
+ }
+ IObuff[i] = NUL;
+ aux = IObuff;
+
+ if (i == compl_length)
+ goto exit_matched;
+ }
+
+ add_r = ins_compl_add_infercase(aux, i, p_ic,
+ curr_fname == curbuf->b_fname ? NULL : curr_fname,
+ dir, reuse);
+ if (add_r == OK)
+ /* if dir was BACKWARD then honor it just once */
+ dir = FORWARD;
+ else if (add_r == FAIL)
+ break;
+ }
+ else
+#endif
+ if (action == ACTION_SHOW_ALL)
+ {
+ found = TRUE;
+ if (!did_show)
+ gotocmdline(TRUE); /* cursor at status line */
+ if (curr_fname != prev_fname)
+ {
+ if (did_show)
+ msg_putchar('\n'); /* cursor below last one */
+ if (!got_int) /* don't display if 'q' typed
+ at "--more--" message */
+ msg_home_replace_hl(curr_fname);
+ prev_fname = curr_fname;
+ }
+ did_show = TRUE;
+ if (!got_int)
+ show_pat_in_path(line, type, TRUE, action,
+ (depth == -1) ? NULL : files[depth].fp,
+ (depth == -1) ? &lnum : &files[depth].lnum,
+ match_count++);
+
+ /* Set matched flag for this file and all the ones that
+ * include it */
+ for (i = 0; i <= depth; ++i)
+ files[i].matched = TRUE;
+ }
+ else if (--count <= 0)
+ {
+ found = TRUE;
+ if (depth == -1 && lnum == curwin->w_cursor.lnum
+#if defined(FEAT_QUICKFIX)
+ && g_do_tagpreview == 0
+#endif
+ )
+ emsg(_("E387: Match is on current line"));
+ else if (action == ACTION_SHOW)
+ {
+ show_pat_in_path(line, type, did_show, action,
+ (depth == -1) ? NULL : files[depth].fp,
+ (depth == -1) ? &lnum : &files[depth].lnum, 1L);
+ did_show = TRUE;
+ }
+ else
+ {
+#ifdef FEAT_GUI
+ need_mouse_correct = TRUE;
+#endif
+#if defined(FEAT_QUICKFIX)
+ /* ":psearch" uses the preview window */
+ if (g_do_tagpreview != 0)
+ {
+ curwin_save = curwin;
+ prepare_tagpreview(TRUE);
+ }
+#endif
+ if (action == ACTION_SPLIT)
+ {
+ if (win_split(0, 0) == FAIL)
+ break;
+ RESET_BINDING(curwin);
+ }
+ if (depth == -1)
+ {
+ /* match in current file */
+#if defined(FEAT_QUICKFIX)
+ if (g_do_tagpreview != 0)
+ {
+ if (!GETFILE_SUCCESS(getfile(
+ curwin_save->w_buffer->b_fnum, NULL,
+ NULL, TRUE, lnum, FALSE)))
+ break; /* failed to jump to file */
+ }
+ else
+#endif
+ setpcmark();
+ curwin->w_cursor.lnum = lnum;
+ check_cursor();
+ }
+ else
+ {
+ if (!GETFILE_SUCCESS(getfile(
+ 0, files[depth].name, NULL, TRUE,
+ files[depth].lnum, FALSE)))
+ break; /* failed to jump to file */
+ /* autocommands may have changed the lnum, we don't
+ * want that here */
+ curwin->w_cursor.lnum = files[depth].lnum;
+ }
+ }
+ if (action != ACTION_SHOW)
+ {
+ curwin->w_cursor.col = (colnr_T)(startp - line);
+ curwin->w_set_curswant = TRUE;
+ }
+
+#if defined(FEAT_QUICKFIX)
+ if (g_do_tagpreview != 0
+ && curwin != curwin_save && win_valid(curwin_save))
+ {
+ /* Return cursor to where we were */
+ validate_cursor();
+ redraw_later(VALID);
+ win_enter(curwin_save, TRUE);
+ }
+#endif
+ break;
+ }
+#ifdef FEAT_INS_EXPAND
+exit_matched:
+#endif
+ matched = FALSE;
+ /* look for other matches in the rest of the line if we
+ * are not at the end of it already */
+ if (def_regmatch.regprog == NULL
+#ifdef FEAT_INS_EXPAND
+ && action == ACTION_EXPAND
+ && !(compl_cont_status & CONT_SOL)
+#endif
+ && *startp != NUL
+ && *(p = startp + MB_PTR2LEN(startp)) != NUL)
+ goto search_line;
+ }
+ line_breakcheck();
+#ifdef FEAT_INS_EXPAND
+ if (action == ACTION_EXPAND)
+ ins_compl_check_keys(30, FALSE);
+ if (got_int || compl_interrupted)
+#else
+ if (got_int)
+#endif
+ break;
+
+ /*
+ * Read the next line. When reading an included file and encountering
+ * end-of-file, close the file and continue in the file that included
+ * it.
+ */
+ while (depth >= 0 && !already
+ && vim_fgets(line = file_line, LSIZE, files[depth].fp))
+ {
+ fclose(files[depth].fp);
+ --old_files;
+ files[old_files].name = files[depth].name;
+ files[old_files].matched = files[depth].matched;
+ --depth;
+ curr_fname = (depth == -1) ? curbuf->b_fname
+ : files[depth].name;
+ if (depth < depth_displayed)
+ depth_displayed = depth;
+ }
+ if (depth >= 0) /* we could read the line */
+ {
+ files[depth].lnum++;
+ /* Remove any CR and LF from the line. */
+ i = (int)STRLEN(line);
+ if (i > 0 && line[i - 1] == '\n')
+ line[--i] = NUL;
+ if (i > 0 && line[i - 1] == '\r')
+ line[--i] = NUL;
+ }
+ else if (!already)
+ {
+ if (++lnum > end_lnum)
+ break;
+ line = ml_get(lnum);
+ }
+ already = NULL;
+ }
+ /* End of big for (;;) loop. */
+
+ /* Close any files that are still open. */
+ for (i = 0; i <= depth; i++)
+ {
+ fclose(files[i].fp);
+ vim_free(files[i].name);
+ }
+ for (i = old_files; i < max_path_depth; i++)
+ vim_free(files[i].name);
+ vim_free(files);
+
+ if (type == CHECK_PATH)
+ {
+ if (!did_show)
+ {
+ if (action != ACTION_SHOW_ALL)
+ msg(_("All included files were found"));
+ else
+ msg(_("No included files"));
+ }
+ }
+ else if (!found
+#ifdef FEAT_INS_EXPAND
+ && action != ACTION_EXPAND
+#endif
+ )
+ {
+#ifdef FEAT_INS_EXPAND
+ if (got_int || compl_interrupted)
+#else
+ if (got_int)
+#endif
+ emsg(_(e_interr));
+ else if (type == FIND_DEFINE)
+ emsg(_("E388: Couldn't find definition"));
+ else
+ emsg(_("E389: Couldn't find pattern"));
+ }
+ if (action == ACTION_SHOW || action == ACTION_SHOW_ALL)
+ msg_end();
+
+fpip_end:
+ vim_free(file_line);
+ vim_regfree(regmatch.regprog);
+ vim_regfree(incl_regmatch.regprog);
+ vim_regfree(def_regmatch.regprog);
+}
+
+ static void
+show_pat_in_path(
+ char_u *line,
+ int type,
+ int did_show,
+ int action,
+ FILE *fp,
+ linenr_T *lnum,
+ long count)
+{
+ char_u *p;
+
+ if (did_show)
+ msg_putchar('\n'); /* cursor below last one */
+ else if (!msg_silent)
+ gotocmdline(TRUE); /* cursor at status line */
+ if (got_int) /* 'q' typed at "--more--" message */
+ return;
+ for (;;)
+ {
+ p = line + STRLEN(line) - 1;
+ if (fp != NULL)
+ {
+ /* We used fgets(), so get rid of newline at end */
+ if (p >= line && *p == '\n')
+ --p;
+ if (p >= line && *p == '\r')
+ --p;
+ *(p + 1) = NUL;
+ }
+ if (action == ACTION_SHOW_ALL)
+ {
+ sprintf((char *)IObuff, "%3ld: ", count); /* show match nr */
+ msg_puts((char *)IObuff);
+ sprintf((char *)IObuff, "%4ld", *lnum); /* show line nr */
+ /* Highlight line numbers */
+ msg_puts_attr((char *)IObuff, HL_ATTR(HLF_N));
+ msg_puts(" ");
+ }
+ msg_prt_line(line, FALSE);
+ out_flush(); /* show one line at a time */
+
+ /* Definition continues until line that doesn't end with '\' */
+ if (got_int || type != FIND_DEFINE || p < line || *p != '\\')
+ break;
+
+ if (fp != NULL)
+ {
+ if (vim_fgets(line, LSIZE, fp)) /* end of file */
+ break;
+ ++*lnum;
+ }
+ else
+ {
+ if (++*lnum > curbuf->b_ml.ml_line_count)
+ break;
+ line = ml_get(*lnum);
+ }
+ msg_putchar('\n');
+ }
+}
+#endif
+
+#ifdef FEAT_VIMINFO
+ int
+read_viminfo_search_pattern(vir_T *virp, int force)
+{
+ char_u *lp;
+ int idx = -1;
+ int magic = FALSE;
+ int no_scs = FALSE;
+ int off_line = FALSE;
+ int off_end = 0;
+ long off = 0;
+ int setlast = FALSE;
+#ifdef FEAT_SEARCH_EXTRA
+ static int hlsearch_on = FALSE;
+#endif
+ char_u *val;
+
+ /*
+ * Old line types:
+ * "/pat", "&pat": search/subst. pat
+ * "~/pat", "~&pat": last used search/subst. pat
+ * New line types:
+ * "~h", "~H": hlsearch highlighting off/on
+ * "~<magic><smartcase><line><end><off><last><which>pat"
+ * <magic>: 'm' off, 'M' on
+ * <smartcase>: 's' off, 'S' on
+ * <line>: 'L' line offset, 'l' char offset
+ * <end>: 'E' from end, 'e' from start
+ * <off>: decimal, offset
+ * <last>: '~' last used pattern
+ * <which>: '/' search pat, '&' subst. pat
+ */
+ lp = virp->vir_line;
+ if (lp[0] == '~' && (lp[1] == 'm' || lp[1] == 'M')) /* new line type */
+ {
+ if (lp[1] == 'M') /* magic on */
+ magic = TRUE;
+ if (lp[2] == 's')
+ no_scs = TRUE;
+ if (lp[3] == 'L')
+ off_line = TRUE;
+ if (lp[4] == 'E')
+ off_end = SEARCH_END;
+ lp += 5;
+ off = getdigits(&lp);
+ }
+ if (lp[0] == '~') /* use this pattern for last-used pattern */
+ {
+ setlast = TRUE;
+ lp++;
+ }
+ if (lp[0] == '/')
+ idx = RE_SEARCH;
+ else if (lp[0] == '&')
+ idx = RE_SUBST;
+#ifdef FEAT_SEARCH_EXTRA
+ else if (lp[0] == 'h') /* ~h: 'hlsearch' highlighting off */
+ hlsearch_on = FALSE;
+ else if (lp[0] == 'H') /* ~H: 'hlsearch' highlighting on */
+ hlsearch_on = TRUE;
+#endif
+ if (idx >= 0)
+ {
+ if (force || spats[idx].pat == NULL)
+ {
+ val = viminfo_readstring(virp, (int)(lp - virp->vir_line + 1),
+ TRUE);
+ if (val != NULL)
+ {
+ set_last_search_pat(val, idx, magic, setlast);
+ vim_free(val);
+ spats[idx].no_scs = no_scs;
+ spats[idx].off.line = off_line;
+ spats[idx].off.end = off_end;
+ spats[idx].off.off = off;
+#ifdef FEAT_SEARCH_EXTRA
+ if (setlast)
+ set_no_hlsearch(!hlsearch_on);
+#endif
+ }
+ }
+ }
+ return viminfo_readline(virp);
+}
+
+ void
+write_viminfo_search_pattern(FILE *fp)
+{
+ if (get_viminfo_parameter('/') != 0)
+ {
+#ifdef FEAT_SEARCH_EXTRA
+ fprintf(fp, "\n# hlsearch on (H) or off (h):\n~%c",
+ (no_hlsearch || find_viminfo_parameter('h') != NULL) ? 'h' : 'H');
+#endif
+ wvsp_one(fp, RE_SEARCH, "", '/');
+ wvsp_one(fp, RE_SUBST, _("Substitute "), '&');
+ }
+}
+
+ static void
+wvsp_one(
+ FILE *fp, /* file to write to */
+ int idx, /* spats[] index */
+ char *s, /* search pat */
+ int sc) /* dir char */
+{
+ if (spats[idx].pat != NULL)
+ {
+ fprintf(fp, _("\n# Last %sSearch Pattern:\n~"), s);
+ /* off.dir is not stored, it's reset to forward */
+ fprintf(fp, "%c%c%c%c%ld%s%c",
+ spats[idx].magic ? 'M' : 'm', /* magic */
+ spats[idx].no_scs ? 's' : 'S', /* smartcase */
+ spats[idx].off.line ? 'L' : 'l', /* line offset */
+ spats[idx].off.end ? 'E' : 'e', /* offset from end */
+ spats[idx].off.off, /* offset */
+ last_idx == idx ? "~" : "", /* last used pat */
+ sc);
+ viminfo_writestring(fp, spats[idx].pat);
+ }
+}
+#endif /* FEAT_VIMINFO */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-27 17:57:22 +0000