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# -*- coding: utf-8 -*-
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"""
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pygments.lexers.shell
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~~~~~~~~~~~~~~~~~~~~~
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Lexers for various shells.
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:copyright: Copyright 2006-2012 by the Pygments team, see AUTHORS.
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:license: BSD, see LICENSE for details.
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"""
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import re
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from pygments.lexer import Lexer, RegexLexer, do_insertions, bygroups, include
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from pygments.token import Punctuation, \
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Text, Comment, Operator, Keyword, Name, String, Number, Generic
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from pygments.util import shebang_matches
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__all__ = ['BashLexer', 'BashSessionLexer', 'TcshLexer', 'BatchLexer',
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'PowerShellLexer']
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line_re = re.compile('.*?\n')
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class BashLexer(RegexLexer):
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"""
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Lexer for (ba|k|)sh shell scripts.
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*New in Pygments 0.6.*
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"""
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name = 'Bash'
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aliases = ['bash', 'sh', 'ksh']
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filenames = ['*.sh', '*.ksh', '*.bash', '*.ebuild', '*.eclass',
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'.bashrc', 'bashrc', '.bash_*', 'bash_*']
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mimetypes = ['application/x-sh', 'application/x-shellscript']
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tokens = {
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'root': [
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include('basic'),
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(r'\$\(\(', Keyword, 'math'),
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(r'\$\(', Keyword, 'paren'),
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(r'\${#?', Keyword, 'curly'),
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(r'`', String.Backtick, 'backticks'),
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include('data'),
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],
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'basic': [
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(r'\b(if|fi|else|while|do|done|for|then|return|function|case|'
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r'select|continue|until|esac|elif)\s*\b',
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Keyword),
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(r'\b(alias|bg|bind|break|builtin|caller|cd|command|compgen|'
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r'complete|declare|dirs|disown|echo|enable|eval|exec|exit|'
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r'export|false|fc|fg|getopts|hash|help|history|jobs|kill|let|'
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r'local|logout|popd|printf|pushd|pwd|read|readonly|set|shift|'
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r'shopt|source|suspend|test|time|times|trap|true|type|typeset|'
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r'ulimit|umask|unalias|unset|wait)\s*\b(?!\.)',
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Name.Builtin),
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(r'#.*\n', Comment),
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(r'\\[\w\W]', String.Escape),
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(r'(\b\w+)(\s*)(=)', bygroups(Name.Variable, Text, Operator)),
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(r'[\[\]{}()=]', Operator),
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(r'<<-?\s*(\'?)\\?(\w+)[\w\W]+?\2', String),
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(r'&&|\|\|', Operator),
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],
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'data': [
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(r'(?s)\$?"(\\\\|\\[0-7]+|\\.|[^"\\])*"', String.Double),
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(r"(?s)\$?'(\\\\|\\[0-7]+|\\.|[^'\\])*'", String.Single),
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(r';', Text),
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(r'\s+', Text),
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(r'[^=\s\[\]{}()$"\'`\\<]+', Text),
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(r'\d+(?= |\Z)', Number),
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(r'\$#?(\w+|.)', Name.Variable),
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(r'<', Text),
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],
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'curly': [
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(r'}', Keyword, '#pop'),
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(r':-', Keyword),
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(r'[a-zA-Z0-9_]+', Name.Variable),
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(r'[^}:"\'`$]+', Punctuation),
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(r':', Punctuation),
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include('root'),
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],
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'paren': [
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(r'\)', Keyword, '#pop'),
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include('root'),
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],
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'math': [
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(r'\)\)', Keyword, '#pop'),
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(r'[-+*/%^|&]|\*\*|\|\|', Operator),
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(r'\d+', Number),
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include('root'),
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],
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'backticks': [
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(r'`', String.Backtick, '#pop'),
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include('root'),
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],
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}
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def analyse_text(text):
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return shebang_matches(text, r'(ba|z|)sh')
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class BashSessionLexer(Lexer):
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"""
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Lexer for simplistic shell sessions.
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*New in Pygments 1.1.*
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"""
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name = 'Bash Session'
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aliases = ['console']
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filenames = ['*.sh-session']
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mimetypes = ['application/x-shell-session']
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def get_tokens_unprocessed(self, text):
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bashlexer = BashLexer(**self.options)
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pos = 0
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curcode = ''
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insertions = []
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for match in line_re.finditer(text):
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line = match.group()
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m = re.match(r'^((?:\(\S+\))?(?:|sh\S*?|\w+\S+[@:]\S+(?:\s+\S+)'
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r'?|\[\S+[@:][^\n]+\].+)[$#%])(.*\n?)' , line)
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if m:
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# To support output lexers (say diff output), the output
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# needs to be broken by prompts whenever the output lexer
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# changes.
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if not insertions:
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pos = match.start()
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insertions.append((len(curcode),
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[(0, Generic.Prompt, m.group(1))]))
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curcode += m.group(2)
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elif line.startswith('>'):
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insertions.append((len(curcode),
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[(0, Generic.Prompt, line[:1])]))
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curcode += line[1:]
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else:
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if insertions:
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toks = bashlexer.get_tokens_unprocessed(curcode)
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for i, t, v in do_insertions(insertions, toks):
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yield pos+i, t, v
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yield match.start(), Generic.Output, line
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insertions = []
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curcode = ''
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if insertions:
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for i, t, v in do_insertions(insertions,
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bashlexer.get_tokens_unprocessed(curcode)):
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yield pos+i, t, v
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class BatchLexer(RegexLexer):
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"""
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Lexer for the DOS/Windows Batch file format.
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*New in Pygments 0.7.*
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"""
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name = 'Batchfile'
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aliases = ['bat']
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filenames = ['*.bat', '*.cmd']
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mimetypes = ['application/x-dos-batch']
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flags = re.MULTILINE | re.IGNORECASE
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tokens = {
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'root': [
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# Lines can start with @ to prevent echo
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(r'^\s*@', Punctuation),
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(r'^(\s*)(rem\s.*)$', bygroups(Text, Comment)),
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(r'".*?"', String.Double),
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(r"'.*?'", String.Single),
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# If made more specific, make sure you still allow expansions
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# like %~$VAR:zlt
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(r'%%?[~$:\w]+%?', Name.Variable),
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(r'::.*', Comment), # Technically :: only works at BOL
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(r'(set)(\s+)(\w+)', bygroups(Keyword, Text, Name.Variable)),
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(r'(call)(\s+)(:\w+)', bygroups(Keyword, Text, Name.Label)),
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(r'(goto)(\s+)(\w+)', bygroups(Keyword, Text, Name.Label)),
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(r'\b(set|call|echo|on|off|endlocal|for|do|goto|if|pause|'
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r'setlocal|shift|errorlevel|exist|defined|cmdextversion|'
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r'errorlevel|else|cd|md|del|deltree|cls|choice)\b', Keyword),
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(r'\b(equ|neq|lss|leq|gtr|geq)\b', Operator),
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include('basic'),
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(r'.', Text),
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],
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'echo': [
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# Escapes only valid within echo args?
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(r'\^\^|\^<|\^>|\^\|', String.Escape),
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(r'\n', Text, '#pop'),
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include('basic'),
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(r'[^\'"^]+', Text),
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],
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'basic': [
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(r'".*?"', String.Double),
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(r"'.*?'", String.Single),
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(r'`.*?`', String.Backtick),
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(r'-?\d+', Number),
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(r',', Punctuation),
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(r'=', Operator),
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(r'/\S+', Name),
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(r':\w+', Name.Label),
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(r'\w:\w+', Text),
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(r'([<>|])(\s*)(\w+)', bygroups(Punctuation, Text, Name)),
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],
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}
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class TcshLexer(RegexLexer):
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"""
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Lexer for tcsh scripts.
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*New in Pygments 0.10.*
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"""
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name = 'Tcsh'
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aliases = ['tcsh', 'csh']
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filenames = ['*.tcsh', '*.csh']
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mimetypes = ['application/x-csh']
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tokens = {
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'root': [
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include('basic'),
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(r'\$\(', Keyword, 'paren'),
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(r'\${#?', Keyword, 'curly'),
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(r'`', String.Backtick, 'backticks'),
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include('data'),
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],
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'basic': [
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(r'\b(if|endif|else|while|then|foreach|case|default|'
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r'continue|goto|breaksw|end|switch|endsw)\s*\b',
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Keyword),
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(r'\b(alias|alloc|bg|bindkey|break|builtins|bye|caller|cd|chdir|'
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r'complete|dirs|echo|echotc|eval|exec|exit|fg|filetest|getxvers|'
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r'glob|getspath|hashstat|history|hup|inlib|jobs|kill|'
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r'limit|log|login|logout|ls-F|migrate|newgrp|nice|nohup|notify|'
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r'onintr|popd|printenv|pushd|rehash|repeat|rootnode|popd|pushd|'
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r'set|shift|sched|setenv|setpath|settc|setty|setxvers|shift|'
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r'source|stop|suspend|source|suspend|telltc|time|'
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r'umask|unalias|uncomplete|unhash|universe|unlimit|unset|unsetenv|'
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r'ver|wait|warp|watchlog|where|which)\s*\b',
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Name.Builtin),
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(r'#.*\n', Comment),
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(r'\\[\w\W]', String.Escape),
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(r'(\b\w+)(\s*)(=)', bygroups(Name.Variable, Text, Operator)),
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(r'[\[\]{}()=]+', Operator),
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(r'<<\s*(\'?)\\?(\w+)[\w\W]+?\2', String),
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],
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'data': [
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(r'(?s)"(\\\\|\\[0-7]+|\\.|[^"\\])*"', String.Double),
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(r"(?s)'(\\\\|\\[0-7]+|\\.|[^'\\])*'", String.Single),
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(r'\s+', Text),
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(r'[^=\s\[\]{}()$"\'`\\]+', Text),
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(r'\d+(?= |\Z)', Number),
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(r'\$#?(\w+|.)', Name.Variable),
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],
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'curly': [
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(r'}', Keyword, '#pop'),
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(r':-', Keyword),
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(r'[a-zA-Z0-9_]+', Name.Variable),
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(r'[^}:"\'`$]+', Punctuation),
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(r':', Punctuation),
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include('root'),
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],
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'paren': [
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(r'\)', Keyword, '#pop'),
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include('root'),
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],
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'backticks': [
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(r'`', String.Backtick, '#pop'),
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include('root'),
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],
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}
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class PowerShellLexer(RegexLexer):
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"""
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For Windows PowerShell code.
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*New in Pygments 1.5.*
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"""
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name = 'PowerShell'
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aliases = ['powershell', 'posh', 'ps1']
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filenames = ['*.ps1']
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mimetypes = ['text/x-powershell']
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flags = re.DOTALL | re.IGNORECASE | re.MULTILINE
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keywords = (
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'while validateset validaterange validatepattern validatelength '
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'validatecount until trap switch return ref process param parameter in '
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'if global: function foreach for finally filter end elseif else '
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'dynamicparam do default continue cmdletbinding break begin alias \\? '
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'% #script #private #local #global mandatory parametersetname position '
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'valuefrompipeline valuefrompipelinebypropertyname '
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'valuefromremainingarguments helpmessage try catch').split()
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operators = (
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'and as band bnot bor bxor casesensitive ccontains ceq cge cgt cle '
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'clike clt cmatch cne cnotcontains cnotlike cnotmatch contains '
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'creplace eq exact f file ge gt icontains ieq ige igt ile ilike ilt '
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'imatch ine inotcontains inotlike inotmatch ireplace is isnot le like '
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'lt match ne not notcontains notlike notmatch or regex replace '
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'wildcard').split()
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verbs = (
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'write where wait use update unregister undo trace test tee take '
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'suspend stop start split sort skip show set send select scroll resume '
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'restore restart resolve resize reset rename remove register receive '
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'read push pop ping out new move measure limit join invoke import '
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'group get format foreach export expand exit enter enable disconnect '
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'disable debug cxnew copy convertto convertfrom convert connect '
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'complete compare clear checkpoint aggregate add').split()
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commenthelp = (
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'component description example externalhelp forwardhelpcategory '
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'forwardhelptargetname functionality inputs link '
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'notes outputs parameter remotehelprunspace role synopsis').split()
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tokens = {
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'root': [
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(r'\s+', Text),
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(r'^(\s*#[#\s]*)(\.(?:%s))([^\n]*$)' % '|'.join(commenthelp),
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bygroups(Comment, String.Doc, Comment)),
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(r'#[^\n]*?$', Comment),
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(r'(<|<)#', Comment.Multiline, 'multline'),
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(r'@"\n.*?\n"@', String.Heredoc),
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(r"@'\n.*?\n'@", String.Heredoc),
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(r'"', String.Double, 'string'),
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(r"'([^']|'')*'", String.Single),
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(r'(\$|@@|@)((global|script|private|env):)?[a-z0-9_]+',
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Name.Variable),
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(r'(%s)\b' % '|'.join(keywords), Keyword),
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(r'-(%s)\b' % '|'.join(operators), Operator),
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(r'(%s)-[a-z_][a-z0-9_]*\b' % '|'.join(verbs), Name.Builtin),
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(r'\[[a-z_\[][a-z0-9_. `,\[\]]*\]', Name.Constant), # .net [type]s
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(r'-[a-z_][a-z0-9_]*', Name),
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(r'\w+', Name),
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(r'[.,{}\[\]$()=+*/\\&%!~?^`|<>-]', Punctuation),
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],
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'multline': [
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(r'[^#&.]+', Comment.Multiline),
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(r'#(>|>)', Comment.Multiline, '#pop'),
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(r'\.(%s)' % '|'.join(commenthelp), String.Doc),
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(r'[#&.]', Comment.Multiline),
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],
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'string': [
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(r'[^$`"]+', String.Double),
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(r'\$\(', String.Interpol, 'interpol'),
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(r'`"|""', String.Double),
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(r'[`$]', String.Double),
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(r'"', String.Double, '#pop'),
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],
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'interpol': [
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(r'[^$)]+', String.Interpol),
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(r'\$\(', String.Interpol, '#push'),
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(r'\)', String.Interpol, '#pop'),
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]
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}
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