Change find-window and monitor-content to use fnmatch(3). For convenience and

compatibility, *s are implicitly added at the start and end of the pattern.

Also display the line number and the entire line in the results, and lose the
nasty section_string function and the now empty util.c file.

Initially from Tiago Cunha.

Makefile

@@ -32,7 +32,7 @@ SRCS=	arg.c attributes.c buffer-poll.c buffer.c cfg.c client-fn.c \
 	mode-key.c names.c options-cmd.c options.c paste.c procname.c \
 	resize.c screen-redraw.c screen-write.c screen.c server-fn.c \
 	server-msg.c server.c session.c status.c tmux.c tty-keys.c tty-term.c \
-	tty-write.c tty.c utf8.c util.c window-choose.c window-clock.c \
+	tty-write.c tty.c utf8.c window-choose.c window-clock.c \
 	window-copy.c window-more.c window-scroll.c window.c xmalloc.c
 
 CFLAGS+= -Wno-long-long -Wall -W -Wnested-externs -Wformat=2

cmd-find-window.c

@@ -18,6 +18,7 @@
 
 #include <sys/types.h>
 
+#include <fnmatch.h>
 #include <string.h>
 
 #include "tmux.h"
@@ -58,8 +59,8 @@ cmd_find_window_exec(struct cmd *self, struct cmd_ctx *ctx)
 	struct window_pane		*wp;
 	ARRAY_DECL(, u_int)	 	 list_idx;
 	ARRAY_DECL(, char *)	 	 list_ctx;
-	char				*sres, *sctx;
-	u_int				 i;
+	char				*sres, *sctx, *searchstr;
+	u_int				 i, line;
 
 	if (ctx->curclient == NULL) {
 		ctx->error(ctx, "must be run interactively");
@@ -73,17 +74,18 @@ cmd_find_window_exec(struct cmd *self, struct cmd_ctx *ctx)
 	ARRAY_INIT(&list_idx);
 	ARRAY_INIT(&list_ctx);
 
+	xasprintf(&searchstr, "*%s*", data->arg);
 	RB_FOREACH(wm, winlinks, &s->windows) {
 		i = 0;
 		TAILQ_FOREACH(wp, &wm->window->panes, entry) {
 			i++;
 
-			if (strstr(wm->window->name, data->arg) != NULL)
+			if (fnmatch(searchstr, wm->window->name, 0) == 0)
 				sctx = xstrdup("");
 			else {
-				sres = window_pane_search(wp, data->arg);
+				sres = window_pane_search(wp, data->arg, &line);
 				if (sres == NULL &&
-				    strstr(wp->base.title, data->arg) == NULL)
+				    fnmatch(searchstr, wp->base.title, 0) != 0)
 					continue;
 
 				if (sres == NULL) {
@@ -91,7 +93,9 @@ cmd_find_window_exec(struct cmd *self, struct cmd_ctx *ctx)
 					    "pane %u title: \"%s\"", i - 1,
 					    wp->base.title);
 				} else {
-					xasprintf(&sctx, "\"%s\"", sres);
+					xasprintf(&sctx,
+					    "pane %u line %u: \"%s\"", i - 1,
+					    line + 1, sres);
 					xfree(sres);
 				}
 			}
@@ -100,6 +104,7 @@ cmd_find_window_exec(struct cmd *self, struct cmd_ctx *ctx)
 			ARRAY_ADD(&list_ctx, sctx);
 		}
 	}
+	xfree(searchstr);
 
 	if (ARRAY_LENGTH(&list_idx) == 0) {
 		ctx->error(ctx, "no windows matching: %s", data->arg);

grid.c

@@ -502,7 +502,7 @@ grid_string_cells(struct grid *gd, u_int px, u_int py, u_int nx)
  	const struct grid_utf8	*gu;
 	char			*buf;
 	size_t			 len, off;
-	u_int			 xx;
+	u_int			 xx, i;
 
 	GRID_DEBUG(gd, "px=%u, py=%u, nx=%u", px, py, nx);
 
@@ -522,10 +522,11 @@ grid_string_cells(struct grid *gd, u_int px, u_int py, u_int nx)
 			}
 
 			gu = grid_peek_utf8(gd, xx, py);
-			memcpy(buf + off, gu->data, UTF8_SIZE);
-			off += UTF8_SIZE;
-			while (off > 0 && ((u_char) buf[off]) == 0xff)
-				off--;
+			for (i = 0; i < UTF8_SIZE; i++) {
+				if (gu->data[i] == 0xff)
+					break;
+				buf[off++] = gu->data[i];
+			}
 		} else {
 			while (len < off + 2) {
 				buf = xrealloc(buf, 2, len);
@@ -535,7 +536,9 @@ grid_string_cells(struct grid *gd, u_int px, u_int py, u_int nx)
 			buf[off++] = gc->data;
 		}
 	}
-
+	
+	while (off > 0 && buf[off - 1] == ' ')
+		off--;
 	buf[off] = '\0';
 	return (buf);
 }

server.c

@@ -959,7 +959,7 @@ server_check_window_content(
 		return (0);
 	if (session_alert_has_window(s, w, WINDOW_CONTENT))
 		return (0);
-	if ((found = window_pane_search(wp, ptr)) == NULL)
+	if ((found = window_pane_search(wp, ptr, NULL)) == NULL)
 		return (0);
 	session_alert_add(s, w, WINDOW_CONTENT);
     	xfree(found);

tmux.1

@@ -664,7 +664,9 @@ Move down a pane.
 .Ar match-string
 .Xc
 .D1 (alias: Ic findw )
-Search for
+Search for the
+.Xr fnmatch 3
+pattern
 .Ar match-string
 in window names, titles, and visible content (but not history).
 If only one window is matched, it'll be automatically selected, otherwise a
@@ -1316,6 +1318,8 @@ Windows with activity are highlighted in the status line.
 .Xc
 Monitor content in the window.
 When
+.Xr fnmatch 3
+pattern
 .Ar match-string
 appears in the window, it is highlighted in the status line.
 .It Xo Ic remain-on-exit

tmux.h

@@ -1456,7 +1456,8 @@ void		 window_pane_parse(struct window_pane *);
 void		 window_pane_key(struct window_pane *, struct client *, int);
 void		 window_pane_mouse(struct window_pane *,
     		     struct client *, u_char, u_char, u_char);
-char		*window_pane_search(struct window_pane *, const char *);
+char		*window_pane_search(
+		     struct window_pane *, const char *, u_int *);
 
 /* layout.c */
 const char * 	 layout_name(struct window *);
@@ -1526,10 +1527,6 @@ int		 session_last(struct session *);
 void	utf8_build(void);
 int	utf8_width(const u_char *);
 
-/* util.c */
-char   *section_string(char *, size_t, size_t, size_t);
-void	clean_string(const char *, char *, size_t);
-
 /* procname.c */
 char   *get_proc_name(int, char *);
 

util.c

@@ -1,52 +0,0 @@
-/* $OpenBSD$ */
-
-/*
- * Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
- * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
- * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include <sys/types.h>
-
-#include "tmux.h"
-
-/* Return a section of a string around a point. */
-char *
-section_string(char *buf, size_t len, size_t sectoff, size_t sectlen)
-{
-	char	*s;
-	size_t	 first, last;
-
-	if (len <= sectlen) {
-		first = 0;
-		last = len;
-	} else if (sectoff < sectlen / 2) {
-		first = 0;
-		last = sectlen;
-	} else if (sectoff + sectlen / 2 > len) {
-		last = len;
-		first = last - sectlen;
-	} else {
-		first = sectoff - sectlen / 2;
-		last = first + sectlen;
-	}
-
-	if (last - first > 3 && first != 0)
-		first += 3;
-	if (last - first > 3 && last != len)
-		last -= 3;
-
-	xasprintf(&s, "%s%.*s%s", first == 0 ? "" : "...",
-	    (int) (last - first), buf + first, last == len ? "" : "...");
-	return (s);
-}

window.c

@@ -21,6 +21,7 @@
 
 #include <errno.h>
 #include <fcntl.h>
+#include <fnmatch.h>
 #include <paths.h>
 #include <signal.h>
 #include <stdint.h>
@@ -588,23 +589,26 @@ window_pane_mouse(
 }
 
 char *
-window_pane_search(struct window_pane *wp, const char *searchstr)
+window_pane_search(struct window_pane *wp, const char *searchstr, u_int *lineno)
 {
 	struct screen	*s = &wp->base;
-	char		*line, *ptr;
+	char		*newsearchstr, *line, *msg;
 	u_int	 	 i;
 
-	ptr = NULL;
+	msg = NULL;
+	xasprintf(&newsearchstr, "*%s*", searchstr);
+
 	for (i = 0; i < screen_size_y(s); i++) {
 		line = grid_view_string_cells(s->grid, 0, i, screen_size_x(s));
-		log_debug("XXX %s", line);
-		if ((ptr = strstr(line, searchstr)) != NULL)
-			break;		
+		if (fnmatch(newsearchstr, line, 0) == 0) {
+			msg = line;
+			if (lineno != NULL)
+				*lineno = i;
+			break;
+		}
 		xfree(line);
 	}
-	if (ptr != NULL) {
-		ptr = section_string(line, strlen(ptr), ptr - line, 40);
-		xfree(line);
-	}
-	return (ptr);
+
+	xfree(newsearchstr);
+	return (msg);
 }