ThirdParty/Pygments/pygments/lexers/shell.py

changeset 4697
c2e9bf425554
parent 4172
4f20dba37ab6
child 5072
aab59042fefb
diff -r bf4d19a7cade -r c2e9bf425554 ThirdParty/Pygments/pygments/lexers/shell.py
--- a/ThirdParty/Pygments/pygments/lexers/shell.py	Sun Jan 24 16:15:58 2016 +0100
+++ b/ThirdParty/Pygments/pygments/lexers/shell.py	Sun Jan 24 19:28:37 2016 +0100
@@ -5,22 +5,24 @@
 
     Lexers for various shells.
 
-    :copyright: Copyright 2006-2014 by the Pygments team, see AUTHORS.
+    :copyright: Copyright 2006-2015 by the Pygments team, see AUTHORS.
     :license: BSD, see LICENSE for details.
 """
 
 import re
 
-from pygments.lexer import Lexer, RegexLexer, do_insertions, bygroups, include
+from pygments.lexer import Lexer, RegexLexer, do_insertions, bygroups, \
+    include, default, this, using, words
 from pygments.token import Punctuation, \
-     Text, Comment, Operator, Keyword, Name, String, Number, Generic
+    Text, Comment, Operator, Keyword, Name, String, Number, Generic
 from pygments.util import shebang_matches
 
 
 __all__ = ['BashLexer', 'BashSessionLexer', 'TcshLexer', 'BatchLexer',
-           'PowerShellLexer', 'ShellSessionLexer']
+           'MSDOSSessionLexer', 'PowerShellLexer',
+           'PowerShellSessionLexer', 'TcshSessionLexer', 'FishShellLexer']
 
-line_re  = re.compile('.*?\n')
+line_re = re.compile('.*?\n')
 
 
 class BashLexer(RegexLexer):
@@ -47,7 +49,9 @@
             (r'\$\(\(', Keyword, 'math'),
             (r'\$\(', Keyword, 'paren'),
             (r'\$\{#?', String.Interpol, 'curly'),
-            (r'\$#?(\w+|.)', Name.Variable),
+            (r'\$[a-fA-F_][a-fA-F0-9_]*', Name.Variable),  # user variable
+            (r'\$(?:\d+|[#$?!_*@-])', Name.Variable),      # builtin
+            (r'\$', Text),
         ],
         'basic': [
             (r'\b(if|fi|else|while|do|done|for|then|return|function|case|'
@@ -58,9 +62,10 @@
              r'export|false|fc|fg|getopts|hash|help|history|jobs|kill|let|'
              r'local|logout|popd|printf|pushd|pwd|read|readonly|set|shift|'
              r'shopt|source|suspend|test|time|times|trap|true|type|typeset|'
-             r'ulimit|umask|unalias|unset|wait)\s*\b(?!\.)',
+             r'ulimit|umask|unalias|unset|wait)(?=[\s)`])',
              Name.Builtin),
-            (r'#.*\n', Comment),
+            (r'\A#!.+\n', Comment.Hashbang),
+            (r'#.*\n', Comment.Single),
             (r'\\[\w\W]', String.Escape),
             (r'(\b\w+)(\s*)(=)', bygroups(Name.Variable, Text, Operator)),
             (r'[\[\]{}()=]', Operator),
@@ -119,20 +124,14 @@
             return 0.2
 
 
-class BashSessionLexer(Lexer):
+class ShellSessionBaseLexer(Lexer):
     """
-    Lexer for simplistic shell sessions.
-
-    .. versionadded:: 1.1
-    """
+    Base lexer for simplistic shell sessions.
 
-    name = 'Bash Session'
-    aliases = ['console']
-    filenames = ['*.sh-session']
-    mimetypes = ['application/x-shell-session']
-
+    .. versionadded:: 2.1
+    """
     def get_tokens_unprocessed(self, text):
-        bashlexer = BashLexer(**self.options)
+        innerlexer = self._innerLexerCls(**self.options)
 
         pos = 0
         curcode = ''
@@ -140,8 +139,7 @@
 
         for match in line_re.finditer(text):
             line = match.group()
-            m = re.match(r'^((?:\(\S+\))?(?:|sh\S*?|\w+\S+[@:]\S+(?:\s+\S+)'
-                          r'?|\[\S+[@:][^\n]+\].+)[$#%])(.*\n?)' , line)
+            m = re.match(self._ps1rgx, line)
             if m:
                 # To support output lexers (say diff output), the output
                 # needs to be broken by prompts whenever the output lexer
@@ -152,13 +150,13 @@
                 insertions.append((len(curcode),
                                    [(0, Generic.Prompt, m.group(1))]))
                 curcode += m.group(2)
-            elif line.startswith('>'):
+            elif line.startswith(self._ps2):
                 insertions.append((len(curcode),
-                                   [(0, Generic.Prompt, line[:1])]))
-                curcode += line[1:]
+                                   [(0, Generic.Prompt, line[:len(self._ps2)])]))
+                curcode += line[len(self._ps2):]
             else:
                 if insertions:
-                    toks = bashlexer.get_tokens_unprocessed(curcode)
+                    toks = innerlexer.get_tokens_unprocessed(curcode)
                     for i, t, v in do_insertions(insertions, toks):
                         yield pos+i, t, v
                 yield match.start(), Generic.Output, line
@@ -166,54 +164,27 @@
                 curcode = ''
         if insertions:
             for i, t, v in do_insertions(insertions,
-                                         bashlexer.get_tokens_unprocessed(curcode)):
+                                         innerlexer.get_tokens_unprocessed(curcode)):
                 yield pos+i, t, v
 
 
-class ShellSessionLexer(Lexer):
+class BashSessionLexer(ShellSessionBaseLexer):
     """
-    Lexer for shell sessions that works with different command prompts
+    Lexer for simplistic shell sessions.
 
-    .. versionadded:: 1.6
+    .. versionadded:: 1.1
     """
 
-    name = 'Shell Session'
-    aliases = ['shell-session']
-    filenames = ['*.shell-session']
-    mimetypes = ['application/x-sh-session']
-
-    def get_tokens_unprocessed(self, text):
-        bashlexer = BashLexer(**self.options)
-
-        pos = 0
-        curcode = ''
-        insertions = []
+    name = 'Bash Session'
+    aliases = ['console', 'shell-session']
+    filenames = ['*.sh-session', '*.shell-session']
+    mimetypes = ['application/x-shell-session', 'application/x-sh-session']
 
-        for match in line_re.finditer(text):
-            line = match.group()
-            m = re.match(r'^((?:\[?\S+@[^$#%]+\]?\s*)[$#%])(.*\n?)', line)
-            if m:
-                # To support output lexers (say diff output), the output
-                # needs to be broken by prompts whenever the output lexer
-                # changes.
-                if not insertions:
-                    pos = match.start()
-
-                insertions.append((len(curcode),
-                                   [(0, Generic.Prompt, m.group(1))]))
-                curcode += m.group(2)
-            else:
-                if insertions:
-                    toks = bashlexer.get_tokens_unprocessed(curcode)
-                    for i, t, v in do_insertions(insertions, toks):
-                        yield pos+i, t, v
-                yield match.start(), Generic.Output, line
-                insertions = []
-                curcode = ''
-        if insertions:
-            for i, t, v in do_insertions(insertions,
-                                         bashlexer.get_tokens_unprocessed(curcode)):
-                yield pos+i, t, v
+    _innerLexerCls = BashLexer
+    _ps1rgx = \
+        r'^((?:(?:\[.*?\])|(?:\(\S+\))?(?:| |sh\S*?|\w+\S+[@:]\S+(?:\s+\S+)' \
+        r'?|\[\S+[@:][^\n]+\].+))\s*[$#%])(.*\n?)'
+    _ps2 = '>'
 
 
 class BatchLexer(RegexLexer):
@@ -229,49 +200,317 @@
 
     flags = re.MULTILINE | re.IGNORECASE
 
+    _nl = r'\n\x1a'
+    _punct = r'&<>|'
+    _ws = r'\t\v\f\r ,;=\xa0'
+    _space = r'(?:(?:(?:\^[%s])?[%s])+)' % (_nl, _ws)
+    _keyword_terminator = (r'(?=(?:\^[%s]?)?[%s+./:[\\\]]|[%s%s(])' %
+                           (_nl, _ws, _nl, _punct))
+    _token_terminator = r'(?=\^?[%s]|[%s%s])' % (_ws, _punct, _nl)
+    _start_label = r'((?:(?<=^[^:])|^[^:]?)[%s]*)(:)' % _ws
+    _label = r'(?:(?:[^%s%s%s+:^]|\^[%s]?[\w\W])*)' % (_nl, _punct, _ws, _nl)
+    _label_compound = (r'(?:(?:[^%s%s%s+:^)]|\^[%s]?[^)])*)' %
+                       (_nl, _punct, _ws, _nl))
+    _number = r'(?:-?(?:0[0-7]+|0x[\da-f]+|\d+)%s)' % _token_terminator
+    _opword = r'(?:equ|geq|gtr|leq|lss|neq)'
+    _string = r'(?:"[^%s"]*"?)' % _nl
+    _variable = (r'(?:(?:%%(?:\*|(?:~[a-z]*(?:\$[^:]+:)?)?\d|'
+                 r'[^%%:%s]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:[^%%%s^]|'
+                 r'\^[^%%%s])[^=%s]*=(?:[^%%%s^]|\^[^%%%s])*)?)?%%))|'
+                 r'(?:\^?![^!:%s]+(?::(?:~(?:-?\d+)?(?:,(?:-?\d+)?)?|(?:'
+                 r'[^!%s^]|\^[^!%s])[^=%s]*=(?:[^!%s^]|\^[^!%s])*)?)?\^?!))' %
+                 (_nl, _nl, _nl, _nl, _nl, _nl, _nl, _nl, _nl, _nl, _nl, _nl))
+    _core_token = r'(?:(?:(?:\^[%s]?)?[^%s%s%s])+)' % (_nl, _nl, _punct, _ws)
+    _core_token_compound = r'(?:(?:(?:\^[%s]?)?[^%s%s%s)])+)' % (_nl, _nl,
+                                                                 _punct, _ws)
+    _token = r'(?:[%s]+|%s)' % (_punct, _core_token)
+    _token_compound = r'(?:[%s]+|%s)' % (_punct, _core_token_compound)
+    _stoken = (r'(?:[%s]+|(?:%s|%s|%s)+)' %
+               (_punct, _string, _variable, _core_token))
+
+    def _make_begin_state(compound, _core_token=_core_token,
+                          _core_token_compound=_core_token_compound,
+                          _keyword_terminator=_keyword_terminator,
+                          _nl=_nl, _punct=_punct, _string=_string,
+                          _space=_space, _start_label=_start_label,
+                          _stoken=_stoken, _token_terminator=_token_terminator,
+                          _variable=_variable, _ws=_ws):
+        rest = '(?:%s|%s|[^"%%%s%s%s])*' % (_string, _variable, _nl, _punct,
+                                            ')' if compound else '')
+        rest_of_line = r'(?:(?:[^%s^]|\^[%s]?[\w\W])*)' % (_nl, _nl)
+        rest_of_line_compound = r'(?:(?:[^%s^)]|\^[%s]?[^)])*)' % (_nl, _nl)
+        set_space = r'((?:(?:\^[%s]?)?[^\S\n])*)' % _nl
+        suffix = ''
+        if compound:
+            _keyword_terminator = r'(?:(?=\))|%s)' % _keyword_terminator
+            _token_terminator = r'(?:(?=\))|%s)' % _token_terminator
+            suffix = '/compound'
+        return [
+            ((r'\)', Punctuation, '#pop') if compound else
+             (r'\)((?=\()|%s)%s' % (_token_terminator, rest_of_line),
+              Comment.Single)),
+            (r'(?=%s)' % _start_label, Text, 'follow%s' % suffix),
+            (_space, using(this, state='text')),
+            include('redirect%s' % suffix),
+            (r'[%s]+' % _nl, Text),
+            (r'\(', Punctuation, 'root/compound'),
+            (r'@+', Punctuation),
+            (r'((?:for|if|rem)(?:(?=(?:\^[%s]?)?/)|(?:(?!\^)|'
+             r'(?<=m))(?:(?=\()|%s)))(%s?%s?(?:\^[%s]?)?/(?:\^[%s]?)?\?)' %
+             (_nl, _token_terminator, _space,
+              _core_token_compound if compound else _core_token, _nl, _nl),
+             bygroups(Keyword, using(this, state='text')),
+             'follow%s' % suffix),
+            (r'(goto%s)(%s(?:\^[%s]?)?/(?:\^[%s]?)?\?%s)' %
+             (_keyword_terminator, rest, _nl, _nl, rest),
+             bygroups(Keyword, using(this, state='text')),
+             'follow%s' % suffix),
+            (words(('assoc', 'break', 'cd', 'chdir', 'cls', 'color', 'copy',
+                    'date', 'del', 'dir', 'dpath', 'echo', 'endlocal', 'erase',
+                    'exit', 'ftype', 'keys', 'md', 'mkdir', 'mklink', 'move',
+                    'path', 'pause', 'popd', 'prompt', 'pushd', 'rd', 'ren',
+                    'rename', 'rmdir', 'setlocal', 'shift', 'start', 'time',
+                    'title', 'type', 'ver', 'verify', 'vol'),
+                   suffix=_keyword_terminator), Keyword, 'follow%s' % suffix),
+            (r'(call)(%s?)(:)' % _space,
+             bygroups(Keyword, using(this, state='text'), Punctuation),
+             'call%s' % suffix),
+            (r'call%s' % _keyword_terminator, Keyword),
+            (r'(for%s(?!\^))(%s)(/f%s)' %
+             (_token_terminator, _space, _token_terminator),
+             bygroups(Keyword, using(this, state='text'), Keyword),
+             ('for/f', 'for')),
+            (r'(for%s(?!\^))(%s)(/l%s)' %
+             (_token_terminator, _space, _token_terminator),
+             bygroups(Keyword, using(this, state='text'), Keyword),
+             ('for/l', 'for')),
+            (r'for%s(?!\^)' % _token_terminator, Keyword, ('for2', 'for')),
+            (r'(goto%s)(%s?)(:?)' % (_keyword_terminator, _space),
+             bygroups(Keyword, using(this, state='text'), Punctuation),
+             'label%s' % suffix),
+            (r'(if(?:(?=\()|%s)(?!\^))(%s?)((?:/i%s)?)(%s?)((?:not%s)?)(%s?)' %
+             (_token_terminator, _space, _token_terminator, _space,
+              _token_terminator, _space),
+             bygroups(Keyword, using(this, state='text'), Keyword,
+                      using(this, state='text'), Keyword,
+                      using(this, state='text')), ('(?', 'if')),
+            (r'rem(((?=\()|%s)%s?%s?.*|%s%s)' %
+             (_token_terminator, _space, _stoken, _keyword_terminator,
+              rest_of_line_compound if compound else rest_of_line),
+             Comment.Single, 'follow%s' % suffix),
+            (r'(set%s)%s(/a)' % (_keyword_terminator, set_space),
+             bygroups(Keyword, using(this, state='text'), Keyword),
+             'arithmetic%s' % suffix),
+            (r'(set%s)%s((?:/p)?)%s((?:(?:(?:\^[%s]?)?[^"%s%s^=%s]|'
+             r'\^[%s]?[^"=])+)?)((?:(?:\^[%s]?)?=)?)' %
+             (_keyword_terminator, set_space, set_space, _nl, _nl, _punct,
+              ')' if compound else '', _nl, _nl),
+             bygroups(Keyword, using(this, state='text'), Keyword,
+                      using(this, state='text'), using(this, state='variable'),
+                      Punctuation),
+             'follow%s' % suffix),
+            default('follow%s' % suffix)
+        ]
+
+    def _make_follow_state(compound, _label=_label,
+                           _label_compound=_label_compound, _nl=_nl,
+                           _space=_space, _start_label=_start_label,
+                           _token=_token, _token_compound=_token_compound,
+                           _ws=_ws):
+        suffix = '/compound' if compound else ''
+        state = []
+        if compound:
+            state.append((r'(?=\))', Text, '#pop'))
+        state += [
+            (r'%s([%s]*)(%s)(.*)' %
+             (_start_label, _ws, _label_compound if compound else _label),
+             bygroups(Text, Punctuation, Text, Name.Label, Comment.Single)),
+            include('redirect%s' % suffix),
+            (r'(?=[%s])' % _nl, Text, '#pop'),
+            (r'\|\|?|&&?', Punctuation, '#pop'),
+            include('text')
+        ]
+        return state
+
+    def _make_arithmetic_state(compound, _nl=_nl, _punct=_punct,
+                               _string=_string, _variable=_variable, _ws=_ws):
+        op = r'=+\-*/!~'
+        state = []
+        if compound:
+            state.append((r'(?=\))', Text, '#pop'))
+        state += [
+            (r'0[0-7]+', Number.Oct),
+            (r'0x[\da-f]+', Number.Hex),
+            (r'\d+', Number.Integer),
+            (r'[(),]+', Punctuation),
+            (r'([%s]|%%|\^\^)+' % op, Operator),
+            (r'(%s|%s|(\^[%s]?)?[^()%s%%^"%s%s%s]|\^[%s%s]?%s)+' %
+             (_string, _variable, _nl, op, _nl, _punct, _ws, _nl, _ws,
+              r'[^)]' if compound else r'[\w\W]'),
+             using(this, state='variable')),
+            (r'(?=[\x00|&])', Text, '#pop'),
+            include('follow')
+        ]
+        return state
+
+    def _make_call_state(compound, _label=_label,
+                         _label_compound=_label_compound):
+        state = []
+        if compound:
+            state.append((r'(?=\))', Text, '#pop'))
+        state.append((r'(:?)(%s)' % (_label_compound if compound else _label),
+                      bygroups(Punctuation, Name.Label), '#pop'))
+        return state
+
+    def _make_label_state(compound, _label=_label,
+                          _label_compound=_label_compound, _nl=_nl,
+                          _punct=_punct, _string=_string, _variable=_variable):
+        state = []
+        if compound:
+            state.append((r'(?=\))', Text, '#pop'))
+        state.append((r'(%s?)((?:%s|%s|\^[%s]?%s|[^"%%^%s%s%s])*)' %
+                      (_label_compound if compound else _label, _string,
+                       _variable, _nl, r'[^)]' if compound else r'[\w\W]', _nl,
+                       _punct, r')' if compound else ''),
+                      bygroups(Name.Label, Comment.Single), '#pop'))
+        return state
+
+    def _make_redirect_state(compound,
+                             _core_token_compound=_core_token_compound,
+                             _nl=_nl, _punct=_punct, _stoken=_stoken,
+                             _string=_string, _space=_space,
+                             _variable=_variable, _ws=_ws):
+        stoken_compound = (r'(?:[%s]+|(?:%s|%s|%s)+)' %
+                           (_punct, _string, _variable, _core_token_compound))
+        return [
+            (r'((?:(?<=[%s%s])\d)?)(>>?&|<&)([%s%s]*)(\d)' %
+             (_nl, _ws, _nl, _ws),
+             bygroups(Number.Integer, Punctuation, Text, Number.Integer)),
+            (r'((?:(?<=[%s%s])(?<!\^[%s])\d)?)(>>?|<)(%s?%s)' %
+             (_nl, _ws, _nl, _space, stoken_compound if compound else _stoken),
+             bygroups(Number.Integer, Punctuation, using(this, state='text')))
+        ]
+
     tokens = {
-        'root': [
-            # Lines can start with @ to prevent echo
-            (r'^\s*@', Punctuation),
-            (r'^(\s*)(rem\s.*)$', bygroups(Text, Comment)),
-            (r'".*?"', String.Double),
-            (r"'.*?'", String.Single),
-            # If made more specific, make sure you still allow expansions
-            # like %~$VAR:zlt
-            (r'%%?[~$:\w]+%?', Name.Variable),
-            (r'::.*', Comment), # Technically :: only works at BOL
-            (r'\b(set)(\s+)(\w+)', bygroups(Keyword, Text, Name.Variable)),
-            (r'\b(call)(\s+)(:\w+)', bygroups(Keyword, Text, Name.Label)),
-            (r'\b(goto)(\s+)(\w+)', bygroups(Keyword, Text, Name.Label)),
-            (r'\b(set|call|echo|on|off|endlocal|for|do|goto|if|pause|'
-             r'setlocal|shift|errorlevel|exist|defined|cmdextversion|'
-             r'errorlevel|else|cd|md|del|deltree|cls|choice)\b', Keyword),
-            (r'\b(equ|neq|lss|leq|gtr|geq)\b', Operator),
-            include('basic'),
-            (r'.', Text),
+        'root': _make_begin_state(False),
+        'follow': _make_follow_state(False),
+        'arithmetic': _make_arithmetic_state(False),
+        'call': _make_call_state(False),
+        'label': _make_label_state(False),
+        'redirect': _make_redirect_state(False),
+        'root/compound': _make_begin_state(True),
+        'follow/compound': _make_follow_state(True),
+        'arithmetic/compound': _make_arithmetic_state(True),
+        'call/compound': _make_call_state(True),
+        'label/compound': _make_label_state(True),
+        'redirect/compound': _make_redirect_state(True),
+        'variable-or-escape': [
+            (_variable, Name.Variable),
+            (r'%%%%|\^[%s]?(\^!|[\w\W])' % _nl, String.Escape)
         ],
-        'echo': [
-            # Escapes only valid within echo args?
-            (r'\^\^|\^<|\^>|\^\|', String.Escape),
-            (r'\n', Text, '#pop'),
-            include('basic'),
-            (r'[^\'"^]+', Text),
+        'string': [
+            (r'"', String.Double, '#pop'),
+            (_variable, Name.Variable),
+            (r'\^!|%%', String.Escape),
+            (r'[^"%%^%s]+|[%%^]' % _nl, String.Double),
+            default('#pop')
+        ],
+        'sqstring': [
+            include('variable-or-escape'),
+            (r'[^%]+|%', String.Single)
+        ],
+        'bqstring': [
+            include('variable-or-escape'),
+            (r'[^%]+|%', String.Backtick)
+        ],
+        'text': [
+            (r'"', String.Double, 'string'),
+            include('variable-or-escape'),
+            (r'[^"%%^%s%s%s\d)]+|.' % (_nl, _punct, _ws), Text)
+        ],
+        'variable': [
+            (r'"', String.Double, 'string'),
+            include('variable-or-escape'),
+            (r'[^"%%^%s]+|.' % _nl, Name.Variable)
+        ],
+        'for': [
+            (r'(%s)(in)(%s)(\()' % (_space, _space),
+             bygroups(using(this, state='text'), Keyword,
+                      using(this, state='text'), Punctuation), '#pop'),
+            include('follow')
+        ],
+        'for2': [
+            (r'\)', Punctuation),
+            (r'(%s)(do%s)' % (_space, _token_terminator),
+             bygroups(using(this, state='text'), Keyword), '#pop'),
+            (r'[%s]+' % _nl, Text),
+            include('follow')
+        ],
+        'for/f': [
+            (r'(")((?:%s|[^"])*?")([%s%s]*)(\))' % (_variable, _nl, _ws),
+             bygroups(String.Double, using(this, state='string'), Text,
+                      Punctuation)),
+            (r'"', String.Double, ('#pop', 'for2', 'string')),
+            (r"('(?:%s|[\w\W])*?')([%s%s]*)(\))" % (_variable, _nl, _ws),
+             bygroups(using(this, state='sqstring'), Text, Punctuation)),
+            (r'(`(?:%s|[\w\W])*?`)([%s%s]*)(\))' % (_variable, _nl, _ws),
+             bygroups(using(this, state='bqstring'), Text, Punctuation)),
+            include('for2')
         ],
-        'basic': [
-            (r'".*?"', String.Double),
-            (r"'.*?'", String.Single),
-            (r'`.*?`', String.Backtick),
-            (r'-?\d+', Number),
-            (r',', Punctuation),
-            (r'=', Operator),
-            (r'/\S+', Name),
-            (r':\w+', Name.Label),
-            (r'\w:\w+', Text),
-            (r'([<>|])(\s*)(\w+)', bygroups(Punctuation, Text, Name)),
+        'for/l': [
+            (r'-?\d+', Number.Integer),
+            include('for2')
+        ],
+        'if': [
+            (r'((?:cmdextversion|errorlevel)%s)(%s)(\d+)' %
+             (_token_terminator, _space),
+             bygroups(Keyword, using(this, state='text'),
+                      Number.Integer), '#pop'),
+            (r'(defined%s)(%s)(%s)' % (_token_terminator, _space, _stoken),
+             bygroups(Keyword, using(this, state='text'),
+                      using(this, state='variable')), '#pop'),
+            (r'(exist%s)(%s%s)' % (_token_terminator, _space, _stoken),
+             bygroups(Keyword, using(this, state='text')), '#pop'),
+            (r'(%s%s?)(==)(%s?%s)' % (_stoken, _space, _space, _stoken),
+             bygroups(using(this, state='text'), Operator,
+                      using(this, state='text')), '#pop'),
+            (r'(%s%s)(%s)(%s%s)' % (_number, _space, _opword, _space, _number),
+             bygroups(using(this, state='arithmetic'), Operator.Word,
+                      using(this, state='arithmetic')), '#pop'),
+            (r'(%s%s)(%s)(%s%s)' % (_stoken, _space, _opword, _space, _stoken),
+             bygroups(using(this, state='text'), Operator.Word,
+                      using(this, state='text')), '#pop')
         ],
+        '(?': [
+            (_space, using(this, state='text')),
+            (r'\(', Punctuation, ('#pop', 'else?', 'root/compound')),
+            default('#pop')
+        ],
+        'else?': [
+            (_space, using(this, state='text')),
+            (r'else%s' % _token_terminator, Keyword, '#pop'),
+            default('#pop')
+        ]
     }
 
 
+class MSDOSSessionLexer(ShellSessionBaseLexer):
+    """
+    Lexer for simplistic MSDOS sessions.
+
+    .. versionadded:: 2.1
+    """
+
+    name = 'MSDOS Session'
+    aliases = ['doscon']
+    filenames = []
+    mimetypes = []
+
+    _innerLexerCls = BatchLexer
+    _ps1rgx = r'^([^>]+>)(.*\n?)'
+    _ps2 = 'More? '
+
+
 class TcshLexer(RegexLexer):
     """
     Lexer for tcsh scripts.
@@ -340,6 +579,23 @@
     }
 
 
+class TcshSessionLexer(ShellSessionBaseLexer):
+    """
+    Lexer for Tcsh sessions.
+
+    .. versionadded:: 2.1
+    """
+
+    name = 'Tcsh Session'
+    aliases = ['tcshcon']
+    filenames = []
+    mimetypes = []
+
+    _innerLexerCls = TcshLexer
+    _ps1rgx = r'^([^>]+>)(.*\n?)'
+    _ps2 = '? '
+
+
 class PowerShellLexer(RegexLexer):
     """
     For Windows PowerShell code.
@@ -348,7 +604,7 @@
     """
     name = 'PowerShell'
     aliases = ['powershell', 'posh', 'ps1', 'psm1']
-    filenames = ['*.ps1','*.psm1']
+    filenames = ['*.ps1', '*.psm1']
     mimetypes = ['text/x-powershell']
 
     flags = re.DOTALL | re.IGNORECASE | re.MULTILINE
@@ -435,3 +691,93 @@
             (r".", String.Heredoc),
         ]
     }
+
+
+class PowerShellSessionLexer(ShellSessionBaseLexer):
+    """
+    Lexer for simplistic Windows PowerShell sessions.
+
+    .. versionadded:: 2.1
+    """
+
+    name = 'PowerShell Session'
+    aliases = ['ps1con']
+    filenames = []
+    mimetypes = []
+
+    _innerLexerCls = PowerShellLexer
+    _ps1rgx = r'^(PS [^>]+> )(.*\n?)'
+    _ps2 = '>> '
+
+
+class FishShellLexer(RegexLexer):
+    """
+    Lexer for Fish shell scripts.
+
+    .. versionadded:: 2.1
+    """
+
+    name = 'Fish'
+    aliases = ['fish', 'fishshell']
+    filenames = ['*.fish', '*.load']
+    mimetypes = ['application/x-fish']
+
+    tokens = {
+        'root': [
+            include('basic'),
+            include('data'),
+            include('interp'),
+        ],
+        'interp': [
+            (r'\$\(\(', Keyword, 'math'),
+            (r'\(', Keyword, 'paren'),
+            (r'\$#?(\w+|.)', Name.Variable),
+        ],
+        'basic': [
+            (r'\b(begin|end|if|else|while|break|for|in|return|function|block|'
+             r'case|continue|switch|not|and|or|set|echo|exit|pwd|true|false|'
+             r'cd|count|test)(\s*)\b',
+             bygroups(Keyword, Text)),
+            (r'\b(alias|bg|bind|breakpoint|builtin|command|commandline|'
+             r'complete|contains|dirh|dirs|emit|eval|exec|fg|fish|fish_config|'
+             r'fish_indent|fish_pager|fish_prompt|fish_right_prompt|'
+             r'fish_update_completions|fishd|funced|funcsave|functions|help|'
+             r'history|isatty|jobs|math|mimedb|nextd|open|popd|prevd|psub|'
+             r'pushd|random|read|set_color|source|status|trap|type|ulimit|'
+             r'umask|vared|fc|getopts|hash|kill|printf|time|wait)\s*\b(?!\.)',
+             Name.Builtin),
+            (r'#.*\n', Comment),
+            (r'\\[\w\W]', String.Escape),
+            (r'(\b\w+)(\s*)(=)', bygroups(Name.Variable, Text, Operator)),
+            (r'[\[\]()=]', Operator),
+            (r'<<-?\s*(\'?)\\?(\w+)[\w\W]+?\2', String),
+        ],
+        'data': [
+            (r'(?s)\$?"(\\\\|\\[0-7]+|\\.|[^"\\$])*"', String.Double),
+            (r'"', String.Double, 'string'),
+            (r"(?s)\$'(\\\\|\\[0-7]+|\\.|[^'\\])*'", String.Single),
+            (r"(?s)'.*?'", String.Single),
+            (r';', Punctuation),
+            (r'&|\||\^|<|>', Operator),
+            (r'\s+', Text),
+            (r'\d+(?= |\Z)', Number),
+            (r'[^=\s\[\]{}()$"\'`\\<&|;]+', Text),
+        ],
+        'string': [
+            (r'"', String.Double, '#pop'),
+            (r'(?s)(\\\\|\\[0-7]+|\\.|[^"\\$])+', String.Double),
+            include('interp'),
+        ],
+        'paren': [
+            (r'\)', Keyword, '#pop'),
+            include('root'),
+        ],
+        'math': [
+            (r'\)\)', Keyword, '#pop'),
+            (r'[-+*/%^|&]|\*\*|\|\|', Operator),
+            (r'\d+#\d+', Number),
+            (r'\d+#(?! )', Number),
+            (r'\d+', Number),
+            include('root'),
+        ],
+    }

eric ide

mercurial