[gedit] Implemented GEDIT_CURRENT_LINE environment variable

[Jesse van den Kieboom <jessevdk src gnome org>]

commit 1ca6df0d04e490e15127b666039b1bc2f6a0a39f
Author: Jesse van den Kieboom <jesse icecrew nl>
Date:   Sun May 10 23:05:21 2009 +0200

    Implemented GEDIT_CURRENT_LINE environment variable
    
    This variable has the same special characteristics as GEDIT_CURRENT_WORD. So
    if there is no selection, the line will be selected and replaced by the placeholder.
---
 plugins/snippets/snippets/Document.py |   20 ++++++++++++++++++++
 plugins/snippets/snippets/Helper.py   |    8 ++++++++
 2 files changed, 28 insertions(+), 0 deletions(-)

diff --git a/plugins/snippets/snippets/Document.py b/plugins/snippets/snippets/Document.py
index 61ed1cb..222deb5 100644
--- a/plugins/snippets/snippets/Document.py
+++ b/plugins/snippets/snippets/Document.py
@@ -339,6 +339,11 @@ class Document:
                 start, end = buffer_word_boundary(buf)
                 
                 return buf.get_text(start, end)
+
+        def env_get_current_line(self, buf):
+                start, end = buffer_line_boundary(buf)
+                
+                return buf.get_text(start, end)
                 
         def env_get_filename(self, buf):
                 uri = buf.get_uri()
@@ -361,6 +366,7 @@ class Document:
                 
                 variables = {'GEDIT_SELECTED_TEXT': self.env_get_selected_text, 
                              'GEDIT_CURRENT_WORD': self.env_get_current_word, 
+                             'GEDIT_CURRENT_LINE': self.env_get_current_line,
                              'GEDIT_FILENAME': self.env_get_filename, 
                              'GEDIT_BASENAME': self.env_get_basename}
                 
@@ -375,6 +381,15 @@ class Document:
                                 return True
                 
                 return False
+        
+        def uses_current_line(self, snippet):
+                matches = re.findall('(\\\\*)\\$GEDIT_CURRENT_LINE', snippet['text'])
+                
+                for match in matches:
+                        if len(match) % 2 == 0:
+                                return True
+                
+                return False
 
         def apply_snippet(self, snippet, start = None, end = None):
                 if not snippet.valid:
@@ -394,6 +409,11 @@ class Document:
                         # the current word. Set start and end to the word boundary so that 
                         # it will be removed
                         start, end = buffer_word_boundary(buf)
+                elif start.equal(end) and self.uses_current_line(s):
+                        # There is no tab trigger and no selection and the snippet uses
+                        # the current line. Set start and end to the line boundary so that 
+                        # it will be removed
+                        start, end = buffer_line_boundary(buf)
 
                 # Set environmental variables
                 self.update_environment()
diff --git a/plugins/snippets/snippets/Helper.py b/plugins/snippets/snippets/Helper.py
index 3847c39..1908527 100644
--- a/plugins/snippets/snippets/Helper.py
+++ b/plugins/snippets/snippets/Helper.py
@@ -159,6 +159,14 @@ def buffer_word_boundary(buf):
                 
         return (start, iter)
 
+def buffer_line_boundary(buf):
+        iter = buf.get_iter_at_mark(buf.get_insert())
+        start = iter.copy()
+        start.set_line_offset(0)
+        iter.forward_to_line_end()
+        
+        return (start, iter)
+
 def drop_get_uris(selection):
         lines = re.split('\\s*[\\n\\r]+\\s*', selection.data.strip())
         result = []