# HG changeset patch
# User Matti Hamalainen <ccr@tnsp.org>
# Date 1287738458 -10800
# Node ID 8037a3a7e4918f8404e95abee2f7dbde9536e99e
# Parent  c587a99e2096efb00d7d293a8b77ca55429812dd
Implement username tab-completion. It's still buggy, tho.

diff -r c587a99e2096 -r 8037a3a7e491 nnchat.c
--- a/nnchat.c	Fri Oct 22 12:07:15 2010 +0300
+++ b/nnchat.c	Fri Oct 22 12:07:38 2010 +0300
@@ -460,7 +460,7 @@
     p = nn_dbldecode_str(str);
     if (!p) return -1;
 
-    nn_userhash_insert(nnUsers, str);
+    nn_userhash_insert(nnUsers, p);
 
     printMsg("! ˝3˝%s˝0˝ ˝2˝ADDED.˝0˝\n", p);
     th_free(p);
@@ -480,7 +480,8 @@
     p = nn_dbldecode_str(str);
     if (!p) return -1;
 
-    nn_userhash_delete(nnUsers, str);
+    nn_userhash_delete(nnUsers, p);
+
     printMsg("! ˝3˝%s˝0˝ ˝1˝DELETED.˝0˝\n", p);
     th_free(p);
     return 0;
@@ -625,12 +626,64 @@
     return TRUE;
 }
 
-
-int printUserFunc(const nn_user_t *user)
+void performTabCompletion(nn_editbuf_t *buf)
 {
-    if (user)
-        printMsgC("%s, ", user->name);
-    return 0;
+    static char *previous = NULL;
+    static char *matsi = NULL;
+    char *s = NULL, *b = buf->data;
+    ssize_t pos2, pos1 = buf->pos;
+    
+    if (pos1 > 0) pos1--;
+
+    if (pos1 > 0 && b[pos1 - 1] == ':') {
+        pos1 -= 2;
+        pos2 = pos1;
+        while (pos1 > 0 && b[pos1 - 1] != ' ') pos1--;
+        s = nn_editbuf_get_string(buf, pos1, pos2);
+    } else
+    if (b[pos1] != ' ' && b[pos1] != ':') {
+        pos2 = pos1;
+        while (pos1 > 0 && b[pos1 - 1] != ' ') pos1--;
+        while (pos2 < buf->len && b[pos2] != ' ') pos2++;
+        while (pos2 > 0 && b[pos2] == ' ') pos2--;
+        s = nn_editbuf_get_string(buf, pos1, pos2);
+        th_free(previous);
+        th_free(matsi);
+        matsi = NULL;
+        previous = NULL;
+    }
+
+    if (s) {
+        nn_user_t *m;
+        if (matsi)
+            m = nn_user_match(nnUsers, matsi, previous);
+        else
+            m = nn_user_match(nnUsers, s, previous);
+
+        if (m) {
+            int i;
+            char *c = m->name;
+            printMsg("match '%s'\n", m->name);
+
+            for (i = pos1; i <= pos2; i++)
+                nn_editbuf_delete(buf, pos1);
+                
+            for (i = pos1; *c; i++, c++)
+                nn_editbuf_insert(buf, i, *c);
+
+            if (previous == NULL) {
+                nn_editbuf_insert(buf, i+1, ':');
+                nn_editbuf_insert(buf, i+2, ' ');
+            }
+            nn_editbuf_setpos(buf, pos1 + 2 + strlen(m->name));
+
+            if (previous == NULL) {
+                previous = th_strdup(m->name);
+                matsi = th_strdup(s);
+            }
+        }
+        th_free(s);
+    }
 }
 
 int main(int argc, char *argv[])
@@ -994,27 +1047,8 @@
                 break;
             
             case 0x09: /* Tab = complete username */
-                {
-                ssize_t pos = editBuf->pos;
-                while (pos > 0 && !isspace((int) editBuf->data[pos - 1]))
-                    pos--;
-
-                if (!isspace(editBuf->data[pos])) {
-                    char *str = nn_editbuf_get_string(editBuf, pos, editBuf->pos);
-                    if (str) {
-                        static char *c_prev = NULL;
-                        nn_user_t *c_curr = nn_user_match(nnUsers, str, c_prev);
-                        th_free(c_prev);
-                        c_prev = NULL;
-                        
-                        if (c_curr) {
-                            c_prev = th_strdup(c_curr->name);
-                            printMsg("Lol: %s\n", c_curr->name);
-                        }
-                        
-                    }
-                }
-                }
+                performTabCompletion(editBuf);
+                update = TRUE;
                 break;
             
             case 0x0c: /* Ctrl + L */