efficient incremental search
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										31
									
								
								dmenu.c
									
									
									
									
									
								
							
							
						
						
									
										31
									
								
								dmenu.c
									
									
									
									
									
								
							@ -27,9 +27,9 @@ static void calcoffsets(void);
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static void drawmenu(void);
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static char *fstrstr(const char *s, const char *sub);
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static void grabkeyboard(void);
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static void insert(const char *s, ssize_t n);
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static void insert(const char *str, ssize_t n);
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static void keypress(XKeyEvent *ev);
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static void match(void);
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static void match(Bool sub);
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static size_t nextrune(int incr);
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static void paste(void);
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static void readstdin(void);
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@ -218,14 +218,14 @@ grabkeyboard(void) {
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}
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void
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insert(const char *s, ssize_t n) {
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insert(const char *str, ssize_t n) {
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	if(strlen(text) + n > sizeof text - 1)
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		return;
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	memmove(&text[cursor + n], &text[cursor], sizeof text - cursor - MAX(n, 0));
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	if(n > 0)
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		memcpy(&text[cursor], s, n);
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		memcpy(&text[cursor], str, n);
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	cursor += n;
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	match();
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	match(n > 0);
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}
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void
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@ -269,7 +269,7 @@ keypress(XKeyEvent *ev) {
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			break;
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		case XK_k:  /* delete right */
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			text[cursor] = '\0';
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			match();
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			match(False);
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			break;
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		case XK_n:
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			ksym = XK_Down;
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@ -375,30 +375,31 @@ keypress(XKeyEvent *ev) {
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			return;
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		strncpy(text, sel->text, sizeof text);
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		cursor = strlen(text);
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		match();
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		match(True);
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		break;
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	}
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	drawmenu();
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}
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void
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match(void) {
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match(Bool sub) {
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	size_t len = strlen(text);
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	Item *item, *lexact, *lprefix, *lsubstr, *exactend, *prefixend, *substrend;
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	Item *lexact, *lprefix, *lsubstr, *exactend, *prefixend, *substrend;
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	Item *item, *next = NULL;
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	matches = lexact = lprefix = lsubstr = matchend = exactend = prefixend = substrend = NULL;
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	for(item = items; item && item->text; item++)
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	lexact = lprefix = lsubstr = exactend = prefixend = substrend = NULL;
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	for(item = sub ? matches : items; item && item->text; item = next) {
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		next = sub ? item->right : item + 1;
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		if(!fstrncmp(text, item->text, len + 1))
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			appenditem(item, &lexact, &exactend);
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		else if(!fstrncmp(text, item->text, len))
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			appenditem(item, &lprefix, &prefixend);
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		else if(fstrstr(item->text, text))
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			appenditem(item, &lsubstr, &substrend);
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	if(lexact) {
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	}
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	matches = lexact;
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	matchend = exactend;
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	}
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	if(lprefix) {
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		if(matchend) {
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			matchend->right = lprefix;
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@ -532,7 +533,7 @@ setup(void) {
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	}
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	inputw = MIN(inputw, mw/3);
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	promptw = prompt ? textw(dc, prompt) : 0;
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	match();
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	match(False);
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	/* menu window */
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	wa.override_redirect = True;
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