[gtksourceview/wip/search-start-signal] region: add add_region() function

[Sébastien Wilmet <swilmet src gnome org>]

commit d175e3e6657a9b5454ed0f913bf3761a373091fc
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Wed Aug 10 16:53:23 2016 +0200

    region: add add_region() function

 docs/reference/gtksourceview-3.0-sections.txt |    1 +
 gtksourceview/gtksourceregion.c               |   56 +++++++++++++++++++++++++
 gtksourceview/gtksourceregion.h               |    4 ++
 3 files changed, 61 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/gtksourceview-3.0-sections.txt b/docs/reference/gtksourceview-3.0-sections.txt
index 0853431..7a4a77e 100644
--- a/docs/reference/gtksourceview-3.0-sections.txt
+++ b/docs/reference/gtksourceview-3.0-sections.txt
@@ -655,6 +655,7 @@ GtkSourceRegionIter
 gtk_source_region_new
 gtk_source_region_get_buffer
 gtk_source_region_add
+gtk_source_region_add_region
 gtk_source_region_subtract
 gtk_source_region_intersect
 gtk_source_region_is_empty
diff --git a/gtksourceview/gtksourceregion.c b/gtksourceview/gtksourceregion.c
index 9d3f9cd..d86fe13 100644
--- a/gtksourceview/gtksourceregion.c
+++ b/gtksourceview/gtksourceregion.c
@@ -521,6 +521,62 @@ gtk_source_region_add (GtkSourceRegion   *region,
 }
 
 /**
+ * gtk_source_region_add_region:
+ * @region: a #GtkSourceRegion.
+ * @region_to_add: (nullable): the #GtkSourceRegion to add to @region, or %NULL.
+ *
+ * Adds @region_to_add to @region. @region_to_add is not modified.
+ *
+ * Since: 3.22
+ */
+void
+gtk_source_region_add_region (GtkSourceRegion *region,
+                             GtkSourceRegion *region_to_add)
+{
+       GtkSourceRegionIter iter;
+       GtkTextBuffer *region_buffer;
+       GtkTextBuffer *region_to_add_buffer;
+
+       g_return_if_fail (GTK_SOURCE_IS_REGION (region));
+       g_return_if_fail (region_to_add == NULL || GTK_SOURCE_IS_REGION (region_to_add));
+
+       if (region_to_add == NULL)
+       {
+               return;
+       }
+
+       region_buffer = gtk_source_region_get_buffer (region);
+       region_to_add_buffer = gtk_source_region_get_buffer (region_to_add);
+       g_return_if_fail (region_buffer == region_to_add_buffer);
+
+       if (region_buffer == NULL)
+       {
+               return;
+       }
+
+       gtk_source_region_get_start_region_iter (region_to_add, &iter);
+
+       while (!gtk_source_region_iter_is_end (&iter))
+       {
+               GtkTextIter subregion_start;
+               GtkTextIter subregion_end;
+
+               if (!gtk_source_region_iter_get_subregion (&iter,
+                                                          &subregion_start,
+                                                          &subregion_end))
+               {
+                       break;
+               }
+
+               gtk_source_region_add (region,
+                                      &subregion_start,
+                                      &subregion_end);
+
+               gtk_source_region_iter_next (&iter);
+       }
+}
+
+/**
  * gtk_source_region_subtract:
  * @region: a #GtkSourceRegion.
  * @_start: the start of the subregion.
diff --git a/gtksourceview/gtksourceregion.h b/gtksourceview/gtksourceregion.h
index 6d3601a..867647c 100644
--- a/gtksourceview/gtksourceregion.h
+++ b/gtksourceview/gtksourceregion.h
@@ -80,6 +80,10 @@ void                 gtk_source_region_add                   (GtkSourceRegion   *region,
                                                                 const GtkTextIter *_end);
 
 GTK_SOURCE_AVAILABLE_IN_3_22
+void                   gtk_source_region_add_region            (GtkSourceRegion *region,
+                                                                GtkSourceRegion *region_to_add);
+
+GTK_SOURCE_AVAILABLE_IN_3_22
 void                   gtk_source_region_subtract              (GtkSourceRegion   *region,
                                                                 const GtkTextIter *_start,
                                                                 const GtkTextIter *_end);