em/dmenu
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several performance tweaks

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anselm@anselm1 2008-03-22 14:52:00 +00:00
parent 745c46d8fa
commit 542c58d8d0
2 changed files with 44 additions and 19 deletions
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2
Makefile
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@ -1,5 +1,5 @@
# dmenu - dynamic menu # dmenu - dynamic menu
# © 2006-2007 Anselm R. Garbe, Sander van Dijk # See LICENSE file for copyright and license details.
include config.mk include config.mk

61
dmenu.c
View File

@ -35,13 +35,12 @@ typedef struct {
typedef struct Item Item; typedef struct Item Item;
struct Item { struct Item {
char *text; char *text;
Bool matched;
Item *next; /* traverses all items */ Item *next; /* traverses all items */
Item *left, *right; /* traverses items matching current search pattern */ Item *left, *right; /* traverses items matching current search pattern */
}; };
/* forward declarations */ /* forward declarations */
Item *appenditem(Item *i, Item *last); void appenditem(Item *i, Item **list, Item **last);
void calcoffsets(void); void calcoffsets(void);
char *cistrstr(const char *s, const char *sub); char *cistrstr(const char *s, const char *sub);
void cleanup(void); void cleanup(void);
@ -92,17 +91,15 @@ Window root, win;
int (*fstrncmp)(const char *, const char *, size_t n) = strncmp; int (*fstrncmp)(const char *, const char *, size_t n) = strncmp;
char *(*fstrstr)(const char *, const char *) = strstr; char *(*fstrstr)(const char *, const char *) = strstr;
Item * void
appenditem(Item *i, Item *last) { appenditem(Item *i, Item **list, Item **last) {
if(!last) if(!(*last))
item = i; *list = i;
else else
last->right = i; (*last)->right = i;
i->left = last; i->left = *last;
i->right = NULL; i->right = NULL;
last = i; *last = i;
nitem++;
return last;
} }
void void
@ -521,19 +518,47 @@ kpress(XKeyEvent * e) {
void void
match(char *pattern) { match(char *pattern) {
unsigned int plen; unsigned int plen;
Item *i, *j; Item *i, *itemend, *lexact, *lprefix, *lsubstr, *exactend, *prefixend, *substrend;
if(!pattern) if(!pattern)
return; return;
plen = strlen(pattern); plen = strlen(pattern);
item = j = NULL; item = lexact = lprefix = lsubstr = itemend = exactend = prefixend = substrend = NULL;
nitem = 0; nitem = 0;
for(i = allitems; i; i = i->next) for(i = allitems; i; i = i->next)
if((i->matched = !fstrncmp(pattern, i->text, plen))) if(!fstrncmp(pattern, i->text, plen + 1)) {
j = appenditem(i, j); appenditem(i, &lexact, &exactend);
for(i = allitems; i; i = i->next) nitem++;
if(!i->matched && fstrstr(i->text, pattern)) }
j = appenditem(i, j); else if(!fstrncmp(pattern, i->text, plen)) {
appenditem(i, &lprefix, &prefixend);
nitem++;
}
else if(fstrstr(i->text, pattern)) {
appenditem(i, &lsubstr, &substrend);
nitem++;
}
if(lexact) {
item = lexact;
itemend = exactend;
}
if(lprefix) {
if(itemend) {
itemend->right - lprefix;
lprefix->left = itemend;
}
else
item = lprefix;
itemend = prefixend;
}
if(lsubstr) {
if(itemend) {
itemend->right = lsubstr;
lsubstr->left = itemend;
}
else
item = lsubstr;
}
curr = prev = next = sel = item; curr = prev = next = sel = item;
calcoffsets(); calcoffsets();
} }