[gnome-builder/wip/libide] libide: add match helper to check item against string

[Christian Hergert <chergert src gnome org>]

commit 955e8814f21c04c6fb4d6e28965b86ac5e5fb083
Author: Christian Hergert <christian hergert me>
Date:   Sun Mar 15 16:27:25 2015 -0700

    libide: add match helper to check item against string

 libide/clang/ide-clang-completion-item.c |   49 ++++++++++++++++++++++++++++++
 libide/clang/ide-clang-completion-item.h |    2 +
 2 files changed, 51 insertions(+), 0 deletions(-)
---
diff --git a/libide/clang/ide-clang-completion-item.c b/libide/clang/ide-clang-completion-item.c
index d8b2356..694632c 100644
--- a/libide/clang/ide-clang-completion-item.c
+++ b/libide/clang/ide-clang-completion-item.c
@@ -178,3 +178,52 @@ ide_clang_completion_item_sort (gconstpointer a,
 
   return (gint)aprio - (gint)bprio;
 }
+
+gboolean
+ide_clang_completion_item_matches (IdeClangCompletionItem *self,
+                                   const gchar            *text)
+{
+  CXCompletionResult *result = get_completion_result ((GtkSourceCompletionProposal *)self);
+  enum CXAvailabilityKind availability;
+  unsigned chunks;
+  unsigned i;
+
+  g_return_val_if_fail (IDE_IS_CLANG_COMPLETION_ITEM (self), text);
+
+  availability = clang_getCompletionAvailability (result->CompletionString);
+
+  switch (availability)
+    {
+    case CXAvailability_NotAvailable:
+    case CXAvailability_NotAccessible:
+      return FALSE;
+
+    default:
+      break;
+    }
+
+  chunks = clang_getNumCompletionChunks (result->CompletionString);
+
+  for (i = 0; i < chunks; i++)
+    {
+      enum CXCompletionChunkKind kind;
+
+      kind = clang_getCompletionChunkKind (result->CompletionString, i);
+
+      if (kind == CXCompletionChunk_TypedText)
+        {
+          CXString cxstr;
+
+          cxstr = clang_getCompletionChunkText(result->CompletionString, i);
+          if (g_str_has_prefix (clang_getCString (cxstr), text))
+            {
+              clang_disposeString (cxstr);
+              return TRUE;
+            }
+
+          clang_disposeString (cxstr);
+        }
+    }
+
+  return FALSE;
+}
diff --git a/libide/clang/ide-clang-completion-item.h b/libide/clang/ide-clang-completion-item.h
index c70cab6..60d458d 100644
--- a/libide/clang/ide-clang-completion-item.h
+++ b/libide/clang/ide-clang-completion-item.h
@@ -35,6 +35,8 @@ typedef struct _IdeClangCompletionItem        IdeClangCompletionItem;
 typedef struct _IdeClangCompletionItemClass   IdeClangCompletionItemClass;
 
 GType    ide_clang_completion_item_get_type (void);
+gboolean ide_clang_completion_item_matches  (IdeClangCompletionItem *self,
+                                             const gchar            *text);
 gint     ide_clang_completion_item_sort     (gconstpointer           a,
                                              gconstpointer           b);