From a46d058b01b2d04666201d4749dd70f51a96ab95 Mon Sep 17 00:00:00 2001 From: dx Date: Thu, 14 May 2020 16:00:46 +0100 Subject: +fuzzy match/highlight custom installed --- dmenu.c | 148 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 145 insertions(+), 3 deletions(-) (limited to 'dmenu.c') diff --git a/dmenu.c b/dmenu.c index 65f25ce..9ecbd86 100644 --- a/dmenu.c +++ b/dmenu.c @@ -1,6 +1,7 @@ /* See LICENSE file for copyright and license details. */ #include #include +#include #include #include #include @@ -26,12 +27,15 @@ #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] = ""; @@ -113,9 +117,49 @@ cistrstr(const char *s, const char *sub) return NULL; } +static void +drawhighlights(struct item *item, int x, int y, int maxw) +{ + int i, indent; + char *highlight; + char c; + + 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 (*highlight == text[i]) { + /* 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) @@ -123,7 +167,9 @@ 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 @@ -210,9 +256,94 @@ 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; @@ -690,7 +821,8 @@ static void usage(void) { fputs("usage: dmenu [-bfiv] [-l lines] [-p prompt] [-fn font] [-m monitor]\n" - " [-nb color] [-nf color] [-sb color] [-sf color] [-w windowid]\n", stderr); + " [-nb color] [-nf color] [-sb color] [-sf color]\n" + " [-nhb color] [-nhf color] [-shb color] [-shf color] [-w windowid]\n", stderr); exit(1); } @@ -709,6 +841,8 @@ main(int argc, char *argv[]) topbar = 0; else if (!strcmp(argv[i], "-f")) /* grabs keyboard before reading stdin */ fast = 1; + else if (!strcmp(argv[i], "-F")) /* grabs keyboard before reading stdin */ + fuzzy = 0; else if (!strcmp(argv[i], "-i")) { /* case-insensitive item matching */ fstrncmp = strncasecmp; fstrstr = cistrstr; @@ -731,6 +865,14 @@ main(int argc, char *argv[]) colors[SchemeSel][ColBg] = argv[++i]; else if (!strcmp(argv[i], "-sf")) /* selected foreground color */ colors[SchemeSel][ColFg] = argv[++i]; + else if (!strcmp(argv[i], "-nhb")) /* normal hi background color */ + colors[SchemeNormHighlight][ColBg] = argv[++i]; + else if (!strcmp(argv[i], "-nhf")) /* normal hi foreground color */ + colors[SchemeNormHighlight][ColFg] = argv[++i]; + else if (!strcmp(argv[i], "-shb")) /* selected hi background color */ + colors[SchemeSelHighlight][ColBg] = argv[++i]; + else if (!strcmp(argv[i], "-shf")) /* selected hi foreground color */ + colors[SchemeSelHighlight][ColFg] = argv[++i]; else if (!strcmp(argv[i], "-w")) /* embedding window id */ embed = argv[++i]; else -- cgit v1.2.3-13-gbd6f