editor: Support indenting lines which have only an unordered list marker

Refs #663.

Author: mitya57

ReText/editor.py

@@ -108,18 +108,25 @@ def getColor(colorName):
     return colorValues[colorName]
 
 def documentIndentMore(document, cursor, globalSettings=globalSettings):
+    if globalSettings.tabInsertsSpaces:
+        indent = ' ' * globalSettings.tabWidth
+    else:
+        indent = '\t'
     if cursor.hasSelection():
         block = document.findBlock(cursor.selectionStart())
         end = document.findBlock(cursor.selectionEnd()).next()
         cursor.beginEditBlock()
         while block != end:
             cursor.setPosition(block.position())
-            if globalSettings.tabInsertsSpaces:
-                cursor.insertText(' ' * globalSettings.tabWidth)
-            else:
-                cursor.insertText('\t')
+            cursor.insertText(indent)
             block = block.next()
         cursor.endEditBlock()
+        return
+    block = document.findBlock(cursor.position())
+    unorderedListPattern = re.compile(r"^\s*[*-] $")
+    if unorderedListPattern.match(block.text()):
+        cursor.setPosition(block.position())
+        cursor.insertText(indent)
     else:
         indent = globalSettings.tabWidth - (cursor.positionInBlock()
             % globalSettings.tabWidth)

tests/test_editor.py

@@ -69,6 +69,18 @@ def test_indentMoreWithSelection(self):
         self.assertEqual('    foo\n    bar\nbaz',
                          self.document.toPlainText())
 
+    def test_indentMoreInList(self):
+        self.document.setPlainText('- one\n- ')
+        cursor = QTextCursor(self.document)
+        cursor.setPosition(8)
+        documentIndentMore(self.document, cursor, self.settings)
+        self.assertEqual('- one\n    - ', self.document.toPlainText())
+
+        self.document.setPlainText('- one\n- ')
+        cursor.setPosition(5)
+        documentIndentMore(self.document, cursor, self.settings)
+        self.assertEqual('- one   \n- ', self.document.toPlainText())
+
     def test_indentLess(self):
         self.document.setPlainText('        foo')
         cursor = QTextCursor(self.document)