[gnome-photos] query-builder: Add photos_query_builder_single_query

[Debarshi Ray <debarshir src gnome org>]

commit 4aebb743945fd58651a4e52e62db504dec16fa99
Author: Debarshi Ray <debarshir gnome org>
Date:   Fri Aug 17 03:24:43 2012 +0200

    query-builder: Add photos_query_builder_single_query

 src/photos-query-builder.c |   21 +++++++++++++++++++++
 src/photos-query-builder.h |    4 ++++
 2 files changed, 25 insertions(+), 0 deletions(-)
---
diff --git a/src/photos-query-builder.c b/src/photos-query-builder.c
index 8ed4c57..82ce834 100644
--- a/src/photos-query-builder.c
+++ b/src/photos-query-builder.c
@@ -176,6 +176,27 @@ photos_query_builder_global_query (void)
 }
 
 
+PhotosQuery *
+photos_query_builder_single_query (gint flags, const gchar *resource)
+{
+  GRegex *regex;
+  gchar *replacement;
+  gchar *sparql;
+  gchar *tmp;
+
+  tmp = photos_query_builder_query (TRUE, flags);
+
+  regex = g_regex_new ("\\?urn", 0, 0, NULL);
+  replacement = g_strconcat ("<", resource, ">", NULL);
+  sparql = g_regex_replace (regex, tmp, -1, 0, replacement, 0, NULL);
+  g_free (replacement);
+  g_free (tmp);
+  g_regex_unref (regex);
+
+  return photos_query_new (sparql);
+}
+
+
 gchar *
 photos_query_builder_filter_local (void)
 {
diff --git a/src/photos-query-builder.h b/src/photos-query-builder.h
index a4fa94d..86c602c 100644
--- a/src/photos-query-builder.h
+++ b/src/photos-query-builder.h
@@ -21,6 +21,8 @@
 #ifndef PHOTOS_QUERY_BUILDER_H
 #define PHOTOS_QUERY_BUILDER_H
 
+#include <glib.h>
+
 #include "photos-query.h"
 
 G_BEGIN_DECLS
@@ -29,6 +31,8 @@ PhotosQuery  *photos_query_builder_count_query         (void);
 
 PhotosQuery  *photos_query_builder_global_query        (void);
 
+PhotosQuery  *photos_query_builder_single_query        (gint flags, const gchar *resource);
+
 gchar        *photos_query_builder_filter_local        (void);
 
 G_END_DECLS