1 files changed, 145 insertions, 0 deletions
diff --git a/pygments/lexers/tcl.py b/pygments/lexers/tcl.py
new file mode 100644
index 00000000..13d945d7
--- /dev/null
+++ b/pygments/lexers/tcl.py
@@ -0,0 +1,145 @@
+# -*- coding: utf-8 -*-
+"""
+    pygments.lexers.tcl
+    ~~~~~~~~~~~~~~~~~~~
+
+    Lexers for Tcl and related languages.
+
+    :copyright: Copyright 2006-2014 by the Pygments team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+
+from pygments.lexer import RegexLexer, include, words
+from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
+    Number
+from pygments.util import shebang_matches
+
+__all__ = ['TclLexer']
+
+
+class TclLexer(RegexLexer):
+    """
+    For Tcl source code.
+
+    .. versionadded:: 0.10
+    """
+
+    keyword_cmds_re = words((
+        'after', 'apply', 'array', 'break', 'catch', 'continue', 'elseif', 'else', 'error',
+        'eval', 'expr', 'for', 'foreach', 'global', 'if', 'namespace', 'proc', 'rename', 'return',
+        'set', 'switch', 'then', 'trace', 'unset', 'update', 'uplevel', 'upvar', 'variable',
+        'vwait', 'while'), prefix=r'\b', suffix=r'\b')
+
+    builtin_cmds_re = words((
+        'append', 'bgerror', 'binary', 'cd', 'chan', 'clock', 'close', 'concat', 'dde', 'dict',
+        'encoding', 'eof', 'exec', 'exit', 'fblocked', 'fconfigure', 'fcopy', 'file',
+        'fileevent', 'flush', 'format', 'gets', 'glob', 'history', 'http', 'incr', 'info', 'interp',
+        'join', 'lappend', 'lassign', 'lindex', 'linsert', 'list', 'llength', 'load', 'loadTk',
+        'lrange', 'lrepeat', 'lreplace', 'lreverse', 'lsearch', 'lset', 'lsort', 'mathfunc',
+        'mathop', 'memory', 'msgcat', 'open', 'package', 'pid', 'pkg::create', 'pkg_mkIndex',
+        'platform', 'platform::shell', 'puts', 'pwd', 're_syntax', 'read', 'refchan',
+        'regexp', 'registry', 'regsub', 'scan', 'seek', 'socket', 'source', 'split', 'string',
+        'subst', 'tell', 'time', 'tm', 'unknown', 'unload'), prefix=r'\b', suffix=r'\b')
+
+    name = 'Tcl'
+    aliases = ['tcl']
+    filenames = ['*.tcl', '*.rvt']
+    mimetypes = ['text/x-tcl', 'text/x-script.tcl', 'application/x-tcl']
+
+    def _gen_command_rules(keyword_cmds_re, builtin_cmds_re, context=""):
+        return [
+            (keyword_cmds_re, Keyword, 'params' + context),
+            (builtin_cmds_re, Name.Builtin, 'params' + context),
+            (r'([\w\.\-]+)', Name.Variable, 'params' + context),
+            (r'#', Comment, 'comment'),
+        ]
+
+    tokens = {
+        'root': [
+            include('command'),
+            include('basic'),
+            include('data'),
+            (r'}', Keyword),  # HACK: somehow we miscounted our braces
+        ],
+        'command': _gen_command_rules(keyword_cmds_re, builtin_cmds_re),
+        'command-in-brace': _gen_command_rules(keyword_cmds_re,
+                                               builtin_cmds_re,
+                                               "-in-brace"),
+        'command-in-bracket': _gen_command_rules(keyword_cmds_re,
+                                                 builtin_cmds_re,
+                                                 "-in-bracket"),
+        'command-in-paren': _gen_command_rules(keyword_cmds_re,
+                                               builtin_cmds_re,
+                                               "-in-paren"),
+        'basic': [
+            (r'\(', Keyword, 'paren'),
+            (r'\[', Keyword, 'bracket'),
+            (r'\{', Keyword, 'brace'),
+            (r'"', String.Double, 'string'),
+            (r'(eq|ne|in|ni)\b', Operator.Word),
+            (r'!=|==|<<|>>|<=|>=|&&|\|\||\*\*|[-+~!*/%<>&^|?:]', Operator),
+        ],
+        'data': [
+            (r'\s+', Text),
+            (r'0x[a-fA-F0-9]+', Number.Hex),
+            (r'0[0-7]+', Number.Oct),
+            (r'\d+\.\d+', Number.Float),
+            (r'\d+', Number.Integer),
+            (r'\$([\w\.\-\:]+)', Name.Variable),
+            (r'([\w\.\-\:]+)', Text),
+        ],
+        'params': [
+            (r';', Keyword, '#pop'),
+            (r'\n', Text, '#pop'),
+            (r'(else|elseif|then)\b', Keyword),
+            include('basic'),
+            include('data'),
+        ],
+        'params-in-brace': [
+            (r'}', Keyword, ('#pop', '#pop')),
+            include('params')
+        ],
+        'params-in-paren': [
+            (r'\)', Keyword, ('#pop', '#pop')),
+            include('params')
+        ],
+        'params-in-bracket': [
+            (r'\]', Keyword, ('#pop', '#pop')),
+            include('params')
+        ],
+        'string': [
+            (r'\[', String.Double, 'string-square'),
+            (r'(?s)(\\\\|\\[0-7]+|\\.|[^"\\])', String.Double),
+            (r'"', String.Double, '#pop')
+        ],
+        'string-square': [
+            (r'\[', String.Double, 'string-square'),
+            (r'(?s)(\\\\|\\[0-7]+|\\.|\\\n|[^\]\\])', String.Double),
+            (r'\]', String.Double, '#pop')
+        ],
+        'brace': [
+            (r'}', Keyword, '#pop'),
+            include('command-in-brace'),
+            include('basic'),
+            include('data'),
+        ],
+        'paren': [
+            (r'\)', Keyword, '#pop'),
+            include('command-in-paren'),
+            include('basic'),
+            include('data'),
+        ],
+        'bracket': [
+            (r'\]', Keyword, '#pop'),
+            include('command-in-bracket'),
+            include('basic'),
+            include('data'),
+        ],
+        'comment': [
+            (r'.*[^\\]\n', Comment, '#pop'),
+            (r'.*\\\n', Comment),
+        ],
+    }
+
+    def analyse_text(text):
+        return shebang_matches(text, r'(tcl)')