From 2ab3d5bed954cccd4486ed3c8255f27b0a6ab7eb Mon Sep 17 00:00:00 2001
From: Florian Forster <ff@octo.it>
Date: Wed, 23 Jun 2010 09:07:04 +0200
Subject: [PATCH] src/graph.[ch]: Implement "graph_inst_search_field" and
 "graph_matches_field".

---
 src/graph.c      | 51 +++++++++++++++++++++++++++++++++++++++++++++++++--
 src/graph.h      | 16 +++++++++++++++-
 src/graph_list.c |  2 +-
 3 files changed, 65 insertions(+), 4 deletions(-)

diff --git a/src/graph.c b/src/graph.c
index f6f40d5..02b3ebf 100644
--- a/src/graph.c
+++ b/src/graph.c
@@ -267,13 +267,33 @@ int graph_add_def (graph_config_t *cfg, graph_def_t *def) /* {{{ */
   return (def_append (cfg->defs, def));
 } /* }}} int graph_add_def */
 
-_Bool graph_matches (graph_config_t *cfg, const graph_ident_t *ident) /* {{{ */
+_Bool graph_matches_ident (graph_config_t *cfg, const graph_ident_t *ident) /* {{{ */
 {
   if ((cfg == NULL) || (ident == NULL))
     return (0);
 
   return (ident_matches (cfg->select, ident));
-} /* }}} _Bool graph_matches */
+} /* }}} _Bool graph_matches_ident */
+
+_Bool graph_matches_field (graph_config_t *cfg, /* {{{ */
+    graph_ident_field_t field, const char *field_value)
+{
+  const char *selector_value;
+
+  if ((cfg == NULL) || (field_value == NULL))
+    return (0);
+
+  selector_value = ident_get_field (cfg->select, field);
+  if (selector_value == NULL)
+    return (0);
+
+  if (IS_ALL (selector_value) || IS_ANY (selector_value))
+    return (1);
+  else if (strcasecmp (selector_value, field_value) == 0)
+    return (1);
+
+  return (0);
+} /* }}} _Bool graph_matches_field */
 
 int graph_inst_foreach (graph_config_t *cfg, /* {{{ */
 		inst_callback_t cb, void *user_data)
@@ -363,6 +383,33 @@ int graph_inst_search (graph_config_t *cfg, const char *term, /* {{{ */
   return (0);
 } /* }}} int graph_inst_search */
 
+int graph_inst_search_field (graph_config_t *cfg, /* {{{ */
+    graph_ident_field_t field, const char *field_value,
+    graph_inst_callback_t callback, void *user_data)
+{
+  size_t i;
+
+  if ((cfg == NULL) || (field_value == NULL) || (callback == NULL))
+    return (EINVAL);
+
+  if (!graph_matches_field (cfg, field, field_value))
+    return (0);
+
+  for (i = 0; i < cfg->instances_num; i++)
+  {
+    if (inst_matches_field (cfg->instances[i], field, field_value))
+    {
+      int status;
+
+      status = (*callback) (cfg, cfg->instances[i], user_data);
+      if (status != 0)
+        return (status);
+    }
+  }
+
+  return (0);
+} /* }}} int graph_inst_search_field */
+
 int graph_compare (graph_config_t *cfg, const graph_ident_t *ident) /* {{{ */
 {
   if ((cfg == NULL) || (ident == NULL))
diff --git a/src/graph.h b/src/graph.h
index 18d168c..d303a85 100644
--- a/src/graph.h
+++ b/src/graph.h
@@ -2,6 +2,7 @@
 #define GRAPH_H 1
 
 #include "graph_types.h"
+#include "graph_ident.h"
 #include "oconfig.h"
 #include "utils_array.h"
 
@@ -27,7 +28,14 @@ graph_def_t *graph_get_defs (graph_config_t *cfg);
 
 int graph_add_def (graph_config_t *cfg, graph_def_t *def);
 
-_Bool graph_matches (graph_config_t *cfg, const graph_ident_t *ident);
+_Bool graph_matches_ident (graph_config_t *cfg, const graph_ident_t *ident);
+
+/* Compares the given string with the appropriate field of the selector. If the
+ * selector field is "/all/" or "/any/", returns true without checking the
+ * instances. See "graph_inst_search_field" for finding all matching instances.
+ * */
+_Bool graph_matches_field (graph_config_t *cfg,
+    graph_ident_field_t field, const char *field_value);
 
 int graph_inst_foreach (graph_config_t *cfg,
     inst_callback_t cb, void *user_data);
@@ -41,6 +49,12 @@ graph_instance_t *graph_inst_find_matching (graph_config_t *cfg,
 int graph_inst_search (graph_config_t *cfg, const char *term,
     graph_inst_callback_t callback, void *user_data);
 
+/* Iterates over all instances and calls "inst_matches_field". If that method
+ * returns true, calls the callback with the graph and instance pointers. */
+int graph_inst_search_field (graph_config_t *cfg,
+    graph_ident_field_t field, const char *field_value,
+    graph_inst_callback_t callback, void *user_data);
+
 int graph_compare (graph_config_t *cfg, const graph_ident_t *ident);
 
 int graph_clear_instances (graph_config_t *cfg);
diff --git a/src/graph_list.c b/src/graph_list.c
index 62a4ed3..0dc0006 100644
--- a/src/graph_list.c
+++ b/src/graph_list.c
@@ -73,7 +73,7 @@ static int gl_register_file (const graph_ident_t *file, /* {{{ */
     graph_config_t *cfg = gl_active[i];
     int status;
 
-    if (!graph_matches (cfg, file))
+    if (!graph_matches_ident (cfg, file))
       continue;
 
     status = graph_add_file (cfg, file);
-- 
2.11.0