add token matching

1 files changed, 34 insertions, 23 deletions

diff --git a/dmenu.c b/dmenu.c
index fd98d54..2bad8d6 100644
--- a/dmenu.c
+++ b/dmenu.c
@@ -30,7 +30,7 @@ static void drawmenu(void);
 static void grabkeyboard(void);
 static void insert(const char *str, ssize_t n);
 static void keypress(XKeyEvent *ev);
-static void match(Bool sub);
+static void match(void);
 static size_t nextrune(int inc);
 static void paste(void);
 static void readstdin(void);
@@ -120,10 +120,10 @@ main(int argc, char *argv[]) {
 
 void
 appenditem(Item *item, Item **list, Item **last) {
-        if(!*last)
-                *list = item;
-        else
+        if(*last)
                 (*last)->right = item;
+        else
+                *list = item;
 
         item->left = *last;
         item->right = NULL;
@@ -223,7 +223,7 @@ insert(const char *str, ssize_t n) {
         if(n > 0)
                 memcpy(&text[cursor], str, n);
         cursor += n;
-        match(n > 0 && text[cursor] == '\0');
+        match();
 }
 
 void
@@ -252,7 +252,7 @@ keypress(XKeyEvent *ev) {
 
                 case XK_k: /* delete right */
                         text[cursor] = '\0';
-                        match(False);
+                        match();
                         break;
                 case XK_u: /* delete left */
                         insert(NULL, 0 - cursor);
@@ -355,31 +355,42 @@ keypress(XKeyEvent *ev) {
                         return;
                 strncpy(text, sel->text, sizeof text);
                 cursor = strlen(text);
-                match(True);
+                match();
                 break;
         }
         drawmenu();
 }
 
 void
-match(Bool sub) {
-        size_t len = strlen(text);
-        Item *lexact, *lprefix, *lsubstr, *exactend, *prefixend, *substrend;
-        Item *item, *lnext;
-
-        lexact = lprefix = lsubstr = exactend = prefixend = substrend = NULL;
-        for(item = sub ? matches : items; item && item->text; item = lnext) {
-                lnext = sub ? item->right : item + 1;
-                if(!fstrncmp(text, item->text, len + 1))
-                        appenditem(item, &lexact, &exactend);
-                else if(!fstrncmp(text, item->text, len))
+match(void) {
+        static char **tokv = NULL;
+        static int tokn = 0;
+
+        char buf[sizeof text], *s;
+        int i, tokc = 0;
+        size_t len;
+        Item *item, *lprefix, *lsubstr, *prefixend, *substrend;
+
+        strcpy(buf, text);
+        for(s = strtok(buf, " "); s; tokv[tokc-1] = s, s = strtok(NULL, " "))
+                if(++tokc > tokn && !(tokv = realloc(tokv, ++tokn * sizeof *tokv)))
+                        eprintf("cannot realloc %u bytes\n", tokn * sizeof *tokv);
+        len = tokc ? strlen(tokv[0]) : 0;
+
+        matches = lprefix = lsubstr = matchend = prefixend = substrend = NULL;
+        for(item = items; item && item->text; item++) {
+                for(i = 0; i < tokc; i++)
+                        if(!fstrstr(item->text, tokv[i]))
+                                break;
+                if(i != tokc)
+                        continue;
+                if(!tokc || !fstrncmp(tokv[0], item->text, len+1))
+                        appenditem(item, &matches, &matchend);
+                else if(!fstrncmp(tokv[0], item->text, len))
                         appenditem(item, &lprefix, &prefixend);
-                else if(fstrstr(item->text, text))
+                else
                         appenditem(item, &lsubstr, &substrend);
         }
-        matches = lexact;
-        matchend = exactend;
-
         if(lprefix) {
                 if(matchend) {
                         matchend->right = lprefix;
@@ -514,7 +525,7 @@ setup(void) {
         }
         promptw = prompt ? textw(dc, prompt) : 0;
         inputw = MIN(inputw, mw/3);
-        match(False);
+        match();
 
         /* menu window */
         wa.override_redirect = True;