add token matching

diff --git a/dmenu.c b/dmenu.c
index fd98d54..2bad8d6 100644 (file)
--- 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;