commit 58b559a2dee77fb5871c90c92bf3e04ae9057407
parent 34966a76b962ca91977536f61378f0c46a9a3912
Author: fjbalon <fjbalon@templier.es>
Date: Wed, 24 Jun 2026 17:01:36 +0200
Aplicación de fuzzymatch y fuzzyhighlight para búsqueda difusa y resalto de coincidencias
Diffstat:
| M | config.h | | | 3 | +++ |
| M | config.mk | | | 2 | +- |
| M | dmenu.1 | | | 23 | +++++++++++++++++++++++ |
| M | dmenu.c | | | 136 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-- |
4 files changed, 160 insertions(+), 4 deletions(-)
diff --git a/config.h b/config.h
@@ -2,6 +2,7 @@
/* Default settings; can be overriden by command line. */
static int topbar = 1; /* -b option; if 0, dmenu appears at bottom */
+static int fuzzy = 1; /* -F option; if 0, dmenu doesn't use fuzzy matching */
/* -fn option overrides fonts[0]; default X11 font or font set */
static const char *fonts[] = {
"monospace:size=10"
@@ -11,6 +12,8 @@ static const char *colors[SchemeLast][2] = {
/* fg bg */
[SchemeNorm] = { "#bbbbbb", "#000000" },
[SchemeSel] = { "#eeeeee", "#005577" },
+ [SchemeSelHighlight] = { "#ffc978", "#005577" },
+ [SchemeNormHighlight] = { "#ffc978", "#31351e" },
[SchemeOut] = { "#000000", "#00ffff" },
};
/* -l option; if nonzero, dmenu uses vertical list with given number of lines */
diff --git a/config.mk b/config.mk
@@ -21,7 +21,7 @@ FREETYPEINC = /usr/include/freetype2
# includes and libs
INCS = -I$(X11INC) -I$(FREETYPEINC)
-LIBS = -L$(X11LIB) -lX11 $(XINERAMALIBS) $(FREETYPELIBS)
+LIBS = -L$(X11LIB) -lX11 $(XINERAMALIBS) $(FREETYPELIBS) -lm
# flags
CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_XOPEN_SOURCE=700 -D_POSIX_C_SOURCE=200809L -DVERSION=\"$(VERSION)\" $(XINERAMAFLAGS)
diff --git a/dmenu.1 b/dmenu.1
@@ -24,6 +24,14 @@ dmenu \- dynamic menu
.IR color ]
.RB [ \-of
.IR color ]
+.RB [ \-nhb
+.IR color ]
+.RB [ \-nhf
+.IR color ]
+.RB [ \-shb
+.IR color ]
+.RB [ \-shf
+.IR color ]
.RB [ \-w
.IR windowid ]
.P
@@ -44,6 +52,9 @@ which lists programs in the user's $PATH and runs the result in their $SHELL.
.B \-b
dmenu appears at the bottom of the screen.
.TP
+.B \-F
+disables fuzzy matching.
+.TP
.B \-f
dmenu grabs the keyboard before reading stdin if not reading from a tty. This
is faster, but will lock up X until stdin reaches end\-of\-file.
@@ -85,6 +96,18 @@ defines the outline background color (for multiple selection).
.BI \-of " color"
defines the outline foreground color (for multiple selection).
.TP
+.BI \-nhb " color"
+defines the normal highlight background color.
+.TP
+.BI \-nhf " color"
+defines the normal highlight foreground color.
+.TP
+.BI \-shb " color"
+defines the selected highlight background color.
+.TP
+.BI \-shf " color"
+defines the selected highlight foreground color.
+.TP
.B \-v
prints version information to stdout, then exits.
.TP
diff --git a/dmenu.c b/dmenu.c
@@ -1,6 +1,7 @@
/* See LICENSE file for copyright and license details. */
#include <ctype.h>
#include <locale.h>
+#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@@ -25,12 +26,15 @@
#define TEXTW(X) (drw_fontset_getwidth(drw, (X)) + lrpad)
/* enums */
-enum { SchemeNorm, SchemeSel, SchemeOut, SchemeLast }; /* color schemes */
+enum { SchemeNorm, SchemeSel, SchemeNormHighlight, SchemeSelHighlight,
+ SchemeOut, SchemeLast }; /* color schemes */
+
struct item {
char *text;
struct item *left, *right;
int out;
+ double distance;
};
static char text[BUFSIZ] = "";
@@ -130,9 +134,47 @@ cistrstr(const char *h, const char *n)
return NULL;
}
+static void
+drawhighlights(struct item *item, int x, int y, int maxw)
+{
+ int i, indent;
+ char c, *highlight;
+
+ if (!(strlen(item->text) && strlen(text)))
+ return;
+
+ drw_setscheme(drw, scheme[item == sel
+ ? SchemeSelHighlight
+ : SchemeNormHighlight]);
+ for (i = 0, highlight = item->text; *highlight && text[i];) {
+ if (!fstrncmp(highlight, &text[i], 1)) {
+ /* get indentation */
+ c = *highlight;
+ *highlight = '\0';
+ indent = TEXTW(item->text);
+ *highlight = c;
+
+ /* highlight character */
+ c = highlight[1];
+ highlight[1] = '\0';
+ drw_text(
+ drw,
+ x + indent - (lrpad / 2.),
+ y,
+ MIN(maxw - indent, TEXTW(highlight) - lrpad),
+ bh, 0, highlight, 0
+ );
+ highlight[1] = c;
+ ++i;
+ }
+ ++highlight;
+ }
+}
+
static int
drawitem(struct item *item, int x, int y, int w)
{
+ int r;
if (item == sel)
drw_setscheme(drw, scheme[SchemeSel]);
else if (item->out)
@@ -140,7 +182,9 @@ drawitem(struct item *item, int x, int y, int w)
else
drw_setscheme(drw, scheme[SchemeNorm]);
- return drw_text(drw, x, y, w, bh, lrpad / 2, item->text, 0);
+ r = drw_text(drw, x, y, w, bh, lrpad / 2, item->text, 0);
+ drawhighlights(item, x, y, w);
+ return r;
}
static void
@@ -227,9 +271,93 @@ grabkeyboard(void)
die("cannot grab keyboard");
}
+int
+compare_distance(const void *a, const void *b)
+{
+ struct item *da = *(struct item **) a;
+ struct item *db = *(struct item **) b;
+
+ if (!db)
+ return 1;
+ if (!da)
+ return -1;
+
+ return da->distance == db->distance ? 0 : da->distance < db->distance ? -1 : 1;
+}
+
+void
+fuzzymatch(void)
+{
+ /* bang - we have so much memory */
+ struct item *it;
+ struct item **fuzzymatches = NULL;
+ char c;
+ int number_of_matches = 0, i, pidx, sidx, eidx;
+ int text_len = strlen(text), itext_len;
+
+ matches = matchend = NULL;
+
+ /* walk through all items */
+ for (it = items; it && it->text; ++it) {
+ if (text_len) {
+ itext_len = strlen(it->text);
+ pidx = 0; /* pointer */
+ sidx = eidx = -1; /* start of match, end of match */
+ /* walk through item text */
+ for (i = 0; i < itext_len && (c = it->text[i]); ++i) {
+ /* fuzzy match pattern */
+ if (!fstrncmp(&text[pidx], &c, 1)) {
+ if(sidx == -1)
+ sidx = i;
+ ++pidx;
+ if (pidx == text_len) {
+ eidx = i;
+ break;
+ }
+ }
+ }
+ /* build list of matches */
+ if (eidx != -1) {
+ /* compute distance */
+ /* add penalty if match starts late (log(sidx+2))
+ * add penalty for long a match without many matching characters */
+ it->distance = log(sidx + 2) + (double)(eidx - sidx - text_len);
+ /* fprintf(stderr, "distance %s %f\n", it->text, it->distance); */
+ appenditem(it, &matches, &matchend);
+ ++number_of_matches;
+ }
+ } else {
+ appenditem(it, &matches, &matchend);
+ }
+ }
+
+ if (number_of_matches) {
+ /* initialize array with matches */
+ if (!(fuzzymatches = realloc(fuzzymatches,
+ number_of_matches * sizeof(struct item *))))
+ die("cannot realloc %u bytes:", number_of_matches * sizeof(struct item *));
+ for (i = 0, it = matches; it && i < number_of_matches; ++i, it = it->right)
+ fuzzymatches[i] = it;
+ /* sort matches according to distance */
+ qsort(fuzzymatches, number_of_matches, sizeof(struct item*), compare_distance);
+ /* rebuild list of matches */
+ matches = matchend = NULL;
+ for (i = 0, it = fuzzymatches[i]; i < number_of_matches && it &&
+ it->text; ++i, it = fuzzymatches[i])
+ appenditem(it, &matches, &matchend);
+ free(fuzzymatches);
+ }
+ curr = sel = matches;
+ calcoffsets();
+}
+
static void
match(void)
{
+ if (fuzzy) {
+ fuzzymatch();
+ return;
+ }
static char **tokv = NULL;
static int tokn = 0;
@@ -715,7 +843,7 @@ setup(void)
static void
usage(void)
{
- die("usage: dmenu [-bfiv] [-l lines] [-p prompt] [-fn font] [-m monitor]\n"
+ die("usage: dmenu [-bFfiv] [-l lines] [-p prompt] [-fn font] [-m monitor]\n"
" [-nb color] [-nf color] [-sb color] [-sf color] [-w windowid]");
}
@@ -732,6 +860,8 @@ main(int argc, char *argv[])
exit(0);
} else if (!strcmp(argv[i], "-b")) /* appears at the bottom of the screen */
topbar = 0;
+ else if (!strcmp(argv[i], "-F")) /* disables fuzzy matching */
+ fuzzy = 0;
else if (!strcmp(argv[i], "-f")) /* grabs keyboard before reading stdin */
fast = 1;
else if (!strcmp(argv[i], "-s")) { /* case-sensitive item matching */
