[gnome-builder] add :1234 line jump command

[Christian Hergert <chergert src gnome org>]

commit 7eccf5f7b72f1eddafaf66655a9a99ec28fd5272
Author: Christian Hergert <christian hergert me>
Date:   Sat Mar 21 17:20:47 2015 -0700

    add :1234 line jump command

 src/vim/gb-vim.c |   32 ++++++++++++++++++++++++++++++++
 1 files changed, 32 insertions(+), 0 deletions(-)
---
diff --git a/src/vim/gb-vim.c b/src/vim/gb-vim.c
index a1a7b3f..0b07846 100644
--- a/src/vim/gb-vim.c
+++ b/src/vim/gb-vim.c
@@ -564,6 +564,33 @@ gb_vim_command_cprevious (GtkSourceView  *source_view,
   return TRUE;
 }
 
+static gboolean
+gb_vim_jump_to_line (GtkSourceView  *source_view,
+                     const gchar    *command,
+                     const gchar    *options,
+                     GError        **error)
+{
+  GtkTextBuffer *buffer;
+  gboolean extend_selection;
+  gint line;
+
+  if (!IDE_IS_SOURCE_VIEW (source_view))
+    return TRUE;
+
+  if (!int32_parse (&line, command, 0, G_MAXINT32, "line number", error))
+    return FALSE;
+
+  buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (source_view));
+  extend_selection = gtk_text_buffer_get_has_selection (buffer);
+  g_signal_emit_by_name (source_view,
+                         "movement",
+                         IDE_SOURCE_VIEW_MOVEMENT_NTH_LINE,
+                         extend_selection, TRUE, TRUE);
+  ide_source_view_set_count (IDE_SOURCE_VIEW (source_view), 0);
+  g_signal_emit_by_name (source_view, "save-insert-mark");
+
+  return TRUE;
+}
 
 static const GbVimCommand vim_commands[] = {
   { "cnext",       gb_vim_command_cnext },
@@ -586,6 +613,8 @@ static const GbVimCommand vim_commands[] = {
 static const GbVimCommand *
 lookup_command (const gchar *name)
 {
+  static const GbVimCommand line_command = { "__line__", gb_vim_jump_to_line };
+  gint line;
   gsize i;
 
   g_assert (name);
@@ -596,6 +625,9 @@ lookup_command (const gchar *name)
         return &vim_commands [i];
     }
 
+  if (int32_parse (&line, name, 0, G_MAXINT32, "line", NULL))
+    return &line_command;
+
   return NULL;
 }