latex mode

--HG--
branch : pmacs2

application.py

@@ -113,7 +113,7 @@ class Application(object):
                  'dir', 'elisp', 'hex', 'html', 'java', 'javascript', 'lisp',
                  'make', 'mini', 'mutt', 'nasm', 'ocaml', 'perl', 'python',
                  'replace', 'rst', 'scheme', 'search', 'sh', 'sql', 'tt',
-                 'text', 'text2', 'which', 'xml', 'cheetah', 'colortext')
+                 'text', 'text2', 'which', 'xml', 'cheetah', 'colortext', 'latex')
         for name in names:
             exec("import mode.%s; mode.%s.install(self)" % (name, name))
 

buffer.py

@@ -611,7 +611,7 @@ class PathListBuffer(DirBuffer):
     btype = 'pathlist'
     def __init__(self, name, paths, nl='\n'):
         Buffer.__init__(self, nl)
-        self.paths = paths
+        self.paths = list(paths)
         self.path  = os.getcwd()
         self._name = name
     def path_exists(self):

lex.py

@@ -181,7 +181,7 @@ class RegionRule(Rule):
         while len(args) > 1:
             grammar = args.pop(0)
             pattern = args.pop(0)
-            assert hasattr(grammar, 'rules'), repr(grammar)
+            #assert hasattr(grammar, 'rules'), repr(grammar)
             assert type(pattern) == type(''), repr(pattern)
             self.pairs.append((grammar, pattern))
         if len(args) == 1:
@@ -238,7 +238,12 @@ class RegionRule(Rule):
                 del lexer.mode.gstack[fqname]
             else:
                 mode = lexer.mode
+                # XYZ
+                #grammar = self.pairs[i][0]
+                if self.pairs[i][0] is not None:
                     grammar = self.pairs[i][0]
+                else:
+                    grammar = lexer.grammar
             lexer.mstack.append(mode)
 
             if self.pairs[i][1]:

method/__init__.py

@@ -453,6 +453,7 @@ class GetIndentionLevel(Method):
 # commenting
 class CommentRegion(Method):
     '''Prepend a comment to every line in the current buffer'''
+    commentc = '#'
     def _execute(self, w, **vargs):
         cursor = w.logical_cursor()
         if cursor < w.mark:
@@ -465,9 +466,10 @@ class CommentRegion(Method):
             w.input_line = "Empty kill region"
             return
         for y in range(p1.y, p2.y):
-            w.buffer.insert_string(Point(0, y), "#")
+            w.buffer.insert_string(Point(0, y), self.commentc)
 class UncommentRegion(Method):
     '''Remove a comment from every line in the current buffer'''
+    commentc = '#'
     def _execute(self, w, **vargs):
         cursor = w.logical_cursor()
         if cursor < w.mark:
@@ -480,7 +482,7 @@ class UncommentRegion(Method):
             w.input_line = "Empty kill region"
             return
         for y in range(p1.y, p2.y):
-            if w.buffer.lines[y].startswith("#"):
+            if w.buffer.lines[y].startswith(self.commentc):
                 w.buffer.delete(Point(0, y), Point(1, y))
 
 # wrapping/justifying/etc

mode/dir.py

@@ -95,7 +95,7 @@ class DirGrep(Method):
     def _execute(self, w, **vargs):
         cmd = 'grep -rEl %r %r' % (vargs['pattern'], w.buffer.path)
         (status, output) = commands.getstatusoutput(cmd)
-        paths = output.split('\n')
+        paths = [x for x in output.split('\n') if x]
         bufname = '*%s*' % self.name.title()
         b = buffer.PathListBuffer(bufname, paths)
         b.modename = 'dir'

mode/latex.py

@@ -0,0 +1,60 @@
+import color, mode
+from lex import Grammar, PatternRule, RegionRule
+from method import Method, CommentRegion, UncommentRegion
+
+class LatexGrammar(Grammar):
+    rules = [
+        PatternRule(r'comment', r'\%.*$'),
+        PatternRule(r'latex_control', r'\\[a-zA-Z]+'),
+        RegionRule(r'latex_argument', r'{', None, r'}'),
+        RegionRule(r'latex_string', r"``", None, r"''"),
+        PatternRule(r'latex_escaped', r'\\.'),
+        PatternRule(r'latex_special', r'[{}$^_%~#&]'),
+    ]
+
+
+class Latex(mode.Fundamental):
+    modename   = 'Latex'
+    extensions = ['.latex', '.tex']
+    grammar    = LatexGrammar
+    colors     = {
+        'latex_control':       ('blue', 'default', 'bold'),
+        'latex_argument.null': ('cyan', 'default', 'bold'),
+        'latex_string.start':  ('green', 'default', 'bold'),
+        'latex_string.null':   ('green', 'default', 'bold'),
+        'latex_string.end':    ('green', 'default', 'bold'),
+        'latex_escaped':       ('magenta', 'default', 'bold'),
+    }
+    def __init__(self, w):
+        mode.Fundamental.__init__(self, w)
+        self.add_bindings('wrap-paragraph', ('M-q',))
+        self.add_action_and_bindings(LatexCommentRegion(), ('C-c #', "C-c \%"))
+        self.add_action_and_bindings(LatexUncommentRegion(), ('C-u C-c #', "C-u C-c \%"))
+
+        self.add_action_and_bindings(LatexInsertSquotes(), ("M-'",))
+        self.add_action_and_bindings(LatexInsertDquotes(), ('M-"',))
+        self.add_action_and_bindings(LatexInsertBraces(), ('M-{',))
+
+class LatexCommentRegion(CommentRegion):
+    commentc = '%'
+class LatexUncommentRegion(UncommentRegion):
+    commentc = '%'
+
+class LatexInsertSquotes(Method):
+    '''Insert a pair of LaTeX-style single-quotes into the buffer'''
+    def _execute(self, w, **vargs):
+        w.insert_string_at_cursor("`'")
+        w.backward()
+class LatexInsertDquotes(Method):
+    '''Insert a pair of LaTeX-style double-quotes into the buffer'''
+    def _execute(self, w, **vargs):
+        w.insert_string_at_cursor("``''")
+        w.backward()
+        w.backward()
+class LatexInsertBraces(Method):
+    '''Insert a pair of curly braces into the buffer'''
+    def _execute(self, w, **vargs):
+        w.insert_string_at_cursor("{}")
+        w.backward()
+
+install = Latex.install