sq
[protos/libecoli.git] / lib / ecoli_completed.c
index 15f3dc9..c9aff48 100644 (file)
@@ -48,7 +48,6 @@ struct ec_completed *ec_completed(void)
                return NULL;
 
        TAILQ_INIT(&completed->nodes);
-       TAILQ_INIT(&completed->matches);
 
        return completed;
 }
@@ -83,12 +82,12 @@ ec_node_complete_child(struct ec_node *node,
        child_state->node = node;
        ec_parsed_add_child(parsed_state, child_state);
 
-       ret = ec_completed_add_node(completed, child_state, node);
+       ret = ec_completed_add_node(completed, node);
        if (ret < 0)
                return ret;
 
        ret = node->type->complete(node, completed,
-                                       child_state, strvec);
+                               child_state, strvec);
        if (ret < 0)
                return ret;
 
@@ -174,37 +173,46 @@ static size_t strcmp_count(const char *s1, const char *s2)
        return i;
 }
 
-static struct ec_completed_item *
-ec_completed_item(enum ec_completed_type type, struct ec_parsed *state,
-               const struct ec_node *node, const char *add)
+static struct ec_completed_node *
+ec_completed_node(const struct ec_node *node)
 {
-       struct ec_completed_item *item = NULL;
+       struct ec_completed_node *compnode = NULL;
 
-       item = ec_calloc(1, sizeof(*item));
-       if (item == NULL)
+       compnode = ec_calloc(1, sizeof(*compnode));
+       if (compnode == NULL)
                return NULL;
 
-       /* XXX can state be NULL? */
-       if (state != NULL) {
-               struct ec_parsed *p;
-               size_t len;
+       compnode->node = node;
+       TAILQ_INIT(&compnode->matches);
 
-               /* get path len */
-               for (p = state, len = 0; p != NULL;
-                    p = ec_parsed_get_parent(p), len++)
-                       ;
+       return compnode;
+}
 
-               item->path = ec_calloc(len, sizeof(*item->path));
-               if (item->path == NULL)
-                       goto fail;
+static struct ec_completed_match *
+ec_completed_match(enum ec_completed_type type, struct ec_parsed *state,
+               const struct ec_node *node, const char *add)
+{
+       struct ec_completed_match *item = NULL;
+       struct ec_parsed *p;
+       size_t len;
 
-               item->pathlen = len;
+       item = ec_calloc(1, sizeof(*item));
+       if (item == NULL)
+               return NULL;
 
-               /* write path in array */
-               for (p = state, len = 0; p != NULL;
-                    p = ec_parsed_get_parent(p), len++)
-                       item->path[len] = p->node;
-       }
+       /* get path len */
+       for (p = state, len = 0; p != NULL;
+            p = ec_parsed_get_parent(p), len++)
+               ;
+       /* allocate room for path */
+       item->path = ec_calloc(len, sizeof(*item->path));
+       if (item->path == NULL)
+               goto fail;
+       item->pathlen = len;
+       /* write path in array */
+       for (p = state, len = 0; p != NULL;
+            p = ec_parsed_get_parent(p), len++)
+               item->path[len] = p->node;
 
        item->type = type;
        item->node = node;
@@ -221,125 +229,142 @@ fail:
                ec_free(item->path);
                ec_free(item->add);
        }
-       ec_completed_item_free(item);
+       ec_completed_match_free(item);
 
        return NULL;
 }
 
-int
-ec_completed_add_match(struct ec_completed *completed,
-               struct ec_parsed *parsed_state,
-               const struct ec_node *node, const char *add)
+static int
+__ec_completed_add_match(enum ec_completed_type type,
+                       struct ec_completed *completed,
+                       struct ec_parsed *parsed_state,
+                       const struct ec_node *node, const char *add)
 {
-       struct ec_completed_item *item = NULL;
+       struct ec_completed_node *compnode = NULL;
+       struct ec_completed_match *match = NULL;
        int ret = -ENOMEM;
        size_t n;
 
-       item = ec_completed_item(EC_MATCH, parsed_state, node, add);
-       if (item == NULL)
+       /* find the compnode entry corresponding to this node */
+       TAILQ_FOREACH(compnode, &completed->nodes, next) {
+               if (compnode->node == node)
+                       break;
+       }
+       if (compnode == NULL)
+               return -ENOENT;
+
+       match = ec_completed_match(type, parsed_state, node, add);
+       if (match == NULL)
                goto fail;
 
-       if (item->add != NULL) {
+       if (match->add != NULL) {
                if (completed->smallest_start == NULL) {
-                       completed->smallest_start = ec_strdup(item->add);
+                       completed->smallest_start = ec_strdup(match->add);
                        if (completed->smallest_start == NULL)
                                goto fail;
                } else {
-                       n = strcmp_count(item->add,
+                       n = strcmp_count(match->add,
                                completed->smallest_start);
                        completed->smallest_start[n] = '\0';
                }
                completed->count_match++;
        }
 
-       TAILQ_INSERT_TAIL(&completed->matches, item, next);
+       TAILQ_INSERT_TAIL(&compnode->matches, match, next);
        completed->count++;
 
        return 0;
 
 fail:
-       ec_completed_item_free(item);
+       ec_completed_match_free(match);
        return ret;
 }
 
 int
-ec_completed_add_node(struct ec_completed *completed,
+ec_completed_add_match(struct ec_completed *completed,
+               struct ec_parsed *parsed_state,
+               const struct ec_node *node, const char *add)
+{
+       return __ec_completed_add_match(EC_MATCH, completed, parsed_state,
+                                       node, add);
+}
+
+int
+ec_completed_add_no_match(struct ec_completed *completed,
                struct ec_parsed *parsed_state,
                const struct ec_node *node)
 {
-#if 0
-       struct ec_completed_item *item = NULL;
-       int ret;
+       return __ec_completed_add_match(EC_NO_MATCH, completed, parsed_state,
+                                       node, NULL);
+}
 
-       item = ec_completed_item(EC_NO_MATCH, parsed_state, node, NULL);
-       if (item == NULL)
+int
+ec_completed_add_partial_match(struct ec_completed *completed,
+               struct ec_parsed *parsed_state,
+               const struct ec_node *node, const char *add)
+{
+       return __ec_completed_add_match(EC_PARTIAL_MATCH, completed, parsed_state,
+                                       node, add);
+}
+
+int
+ec_completed_add_node(struct ec_completed *completed,
+               const struct ec_node *node)
+{
+       struct ec_completed_node *compnode = NULL;
+
+       compnode = ec_completed_node(node);
+       if (compnode == NULL)
                return -ENOMEM;
 
-       ret = ec_completed_add_item(completed, item);
-       if (ret < 0) {
-               ec_completed_item_free(item);
-               return ret;
-       }
-#endif
-       (void)completed;
-       (void)parsed_state;
-       (void)node;
+       TAILQ_INSERT_TAIL(&completed->nodes, compnode, next);
        return 0;
 }
 
-void ec_completed_item_free(struct ec_completed_item *item)
+void ec_completed_match_free(struct ec_completed_match *match)
 {
-       ec_free(item->add);
-       ec_free(item->path);
-       ec_free(item);
+       ec_free(match->add);
+       ec_free(match->path);
+       ec_free(match);
 }
 
-/* default completion function: return a no-item element */
+/* default completion function: return a no-match element */
 int
 ec_node_default_complete(const struct ec_node *gen_node,
                        struct ec_completed *completed,
-                       struct ec_parsed *parsed,
+                       struct ec_parsed *parsed_state,
                        const struct ec_strvec *strvec)
 {
-       (void)strvec;
+       int ret;
 
-       if (ec_strvec_len(strvec) != 1) //XXX needed?
+       if (ec_strvec_len(strvec) != 1)
                return 0;
 
-       if (ec_completed_add_node(completed, parsed, gen_node) < 0)
-               return -1;
+       ret = ec_completed_add_no_match(completed, parsed_state, gen_node);
+       if (ret < 0)
+               return ret;
 
        return 0;
 }
 
-void ec_completed_merge(struct ec_completed *completed1,
-       struct ec_completed *completed2)
-{
-       struct ec_completed_item *item;
-
-       assert(completed1 != NULL);
-       assert(completed2 != NULL);
-
-       while (!TAILQ_EMPTY(&completed2->matches)) {
-               item = TAILQ_FIRST(&completed2->matches);
-               TAILQ_REMOVE(&completed2->matches, item, next);
-               //ec_completed_add_item(completed1, item);
-       }
-
-       ec_completed_free(completed2);
-}
-
 void ec_completed_free(struct ec_completed *completed)
 {
-       struct ec_completed_item *item;
+       struct ec_completed_node *compnode;
+       struct ec_completed_match *item;
 
        if (completed == NULL)
                return;
 
-       while (!TAILQ_EMPTY(&completed->matches)) {
-               item = TAILQ_FIRST(&completed->matches);
-               TAILQ_REMOVE(&completed->matches, item, next);
-               ec_completed_item_free(item);
+       while (!TAILQ_EMPTY(&completed->nodes)) {
+               compnode = TAILQ_FIRST(&completed->nodes);
+               TAILQ_REMOVE(&completed->nodes, compnode, next);
+
+               while (!TAILQ_EMPTY(&compnode->matches)) {
+                       item = TAILQ_FIRST(&compnode->matches);
+                       TAILQ_REMOVE(&compnode->matches, item, next);
+                       ec_completed_match_free(item);
+               }
+               ec_free(compnode);
        }
        ec_free(completed->smallest_start);
        ec_free(completed);
@@ -347,7 +372,8 @@ void ec_completed_free(struct ec_completed *completed)
 
 void ec_completed_dump(FILE *out, const struct ec_completed *completed)
 {
-       struct ec_completed_item *item;
+       struct ec_completed_node *compnode;
+       struct ec_completed_match *item;
 
        if (completed == NULL || completed->count == 0) {
                fprintf(out, "no completion\n");
@@ -358,9 +384,21 @@ void ec_completed_dump(FILE *out, const struct ec_completed *completed)
                completed->count, completed->count_match,
                completed->smallest_start);
 
-       TAILQ_FOREACH(item, &completed->matches, next) {
-               fprintf(out, "add=<%s>, node=%p, node_type=%s\n",
-                       item->add, item->node, item->node->type->name);
+       TAILQ_FOREACH(compnode, &completed->nodes, next) {
+               fprintf(out, "node=%p, node_type=%s\n",
+                       compnode->node, compnode->node->type->name);
+               TAILQ_FOREACH(item, &compnode->matches, next) {
+                       const char *typestr;
+
+                       switch (item->type) {
+                       case EC_NO_MATCH: typestr = "no-match"; break;
+                       case EC_MATCH: typestr = "match"; break;
+                       case EC_PARTIAL_MATCH: typestr = "partial-match"; break;
+                       default: typestr = "unknown"; break;
+                       }
+
+                       fprintf(out, "  type=%s add=<%s>\n", typestr, item->add);
+               }
        }
 }
 
@@ -402,39 +440,56 @@ ec_completed_iter(struct ec_completed *completed,
 
        iter->completed = completed;
        iter->type = type;
-       iter->cur_item = NULL;
+       iter->cur_node = NULL;
+       iter->cur_match = NULL;
 
        return iter;
 }
 
-const struct ec_completed_item *ec_completed_iter_next(
+const struct ec_completed_match *ec_completed_iter_next(
        struct ec_completed_iter *iter)
 {
        const struct ec_completed *completed = iter->completed;
+       const struct ec_completed_node *cur_node;
+       const struct ec_completed_match *cur_match;
 
        if (completed == NULL)
                return NULL;
 
-       do {
-               if (iter->cur_item == NULL)
-                       iter->cur_item = TAILQ_FIRST(&completed->matches);
-               else
-                       iter->cur_item = TAILQ_NEXT(iter->cur_item, next);
-
-               if (iter->cur_item == NULL)
-                       break;
-
-               if (iter->cur_item->add == NULL &&
-                               (iter->type & EC_NO_MATCH))
-                       break;
-
-               if (iter->cur_item->add != NULL &&
-                               (iter->type & EC_MATCH))
-                       break;
+       cur_node = iter->cur_node;
+       cur_match = iter->cur_match;
+
+       /* first call */
+       if (cur_node == NULL) {
+               TAILQ_FOREACH(cur_node, &completed->nodes, next) {
+                       TAILQ_FOREACH(cur_match, &cur_node->matches, next) {
+                               if (cur_match != NULL &&
+                                               cur_match->type & iter->type)
+                                       goto found;
+                       }
+               }
+               return NULL;
+       } else {
+               cur_match = TAILQ_NEXT(cur_match, next);
+               if (cur_match != NULL &&
+                               cur_match->type & iter->type)
+                       goto found;
+               cur_node = TAILQ_NEXT(cur_node, next);
+               while (cur_node != NULL) {
+                       cur_match = TAILQ_FIRST(&cur_node->matches);
+                       if (cur_match != NULL &&
+                                       cur_match->type & iter->type)
+                               goto found;
+                       cur_node = TAILQ_NEXT(cur_node, next);
+               }
+               return NULL;
+       }
 
-       } while (iter->cur_item != NULL);
+found:
+       iter->cur_node = cur_node;
+       iter->cur_match = cur_match;
 
-       return iter->cur_item;
+       return iter->cur_match;
 }
 
 void ec_completed_iter_free(struct ec_completed_iter *iter)