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# -*- coding: utf-8 -*-
"""
pygments.lexers.dotnet
~~~~~~~~~~~~~~~~~~~~~~
Lexers for .net languages.
:copyright: Copyright 2006-2015 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import re
from pygments.lexer import RegexLexer, DelegatingLexer, bygroups, include, \
using, this, default
from pygments.token import Punctuation, \
Text, Comment, Operator, Keyword, Name, String, Number, Literal, Other
from pygments.util import get_choice_opt, iteritems
from pygments import unistring as uni
from pygments.lexers.html import XmlLexer
__all__ = ['CSharpLexer', 'NemerleLexer', 'BooLexer', 'VbNetLexer',
'CSharpAspxLexer', 'VbNetAspxLexer', 'FSharpLexer']
class CSharpLexer(RegexLexer):
"""
For `C# `_
source code.
Additional options accepted:
`unicodelevel`
Determines which Unicode characters this lexer allows for identifiers.
The possible values are:
* ``none`` -- only the ASCII letters and numbers are allowed. This
is the fastest selection.
* ``basic`` -- all Unicode characters from the specification except
category ``Lo`` are allowed.
* ``full`` -- all Unicode characters as specified in the C# specs
are allowed. Note that this means a considerable slowdown since the
``Lo`` category has more than 40,000 characters in it!
The default value is ``basic``.
.. versionadded:: 0.8
"""
name = 'C#'
aliases = ['csharp', 'c#']
filenames = ['*.cs']
mimetypes = ['text/x-csharp'] # inferred
flags = re.MULTILINE | re.DOTALL | re.UNICODE
# for the range of allowed unicode characters in identifiers, see
# http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-334.pdf
levels = {
'none': '@?[_a-zA-Z]\w*',
'basic': ('@?[_' + uni.combine('Lu', 'Ll', 'Lt', 'Lm', 'Nl') + ']' +
'[' + uni.combine('Lu', 'Ll', 'Lt', 'Lm', 'Nl', 'Nd', 'Pc',
'Cf', 'Mn', 'Mc') + ']*'),
'full': ('@?(?:_|[^' +
uni.allexcept('Lu', 'Ll', 'Lt', 'Lm', 'Lo', 'Nl') + '])'
+ '[^' + uni.allexcept('Lu', 'Ll', 'Lt', 'Lm', 'Lo', 'Nl',
'Nd', 'Pc', 'Cf', 'Mn', 'Mc') + ']*'),
}
tokens = {}
token_variants = True
for levelname, cs_ident in iteritems(levels):
tokens[levelname] = {
'root': [
# method names
(r'^([ \t]*(?:' + cs_ident + r'(?:\[\])?\s+)+?)' # return type
r'(' + cs_ident + ')' # method name
r'(\s*)(\()', # signature start
bygroups(using(this), Name.Function, Text, Punctuation)),
(r'^\s*\[.*?\]', Name.Attribute),
(r'[^\S\n]+', Text),
(r'\\\n', Text), # line continuation
(r'//.*?\n', Comment.Single),
(r'/[*].*?[*]/', Comment.Multiline),
(r'\n', Text),
(r'[~!%^&*()+=|\[\]:;,.<>/?-]', Punctuation),
(r'[{}]', Punctuation),
(r'@"(""|[^"])*"', String),
(r'"(\\\\|\\"|[^"\n])*["\n]', String),
(r"'\\.'|'[^\\]'", String.Char),
(r"[0-9](\.[0-9]*)?([eE][+-][0-9]+)?"
r"[flFLdD]?|0[xX][0-9a-fA-F]+[Ll]?", Number),
(r'#[ \t]*(if|endif|else|elif|define|undef|'
r'line|error|warning|region|endregion|pragma)\b.*?\n',
Comment.Preproc),
(r'\b(extern)(\s+)(alias)\b', bygroups(Keyword, Text,
Keyword)),
(r'(abstract|as|async|await|base|break|case|catch|'
r'checked|const|continue|default|delegate|'
r'do|else|enum|event|explicit|extern|false|finally|'
r'fixed|for|foreach|goto|if|implicit|in|interface|'
r'internal|is|lock|new|null|operator|'
r'out|override|params|private|protected|public|readonly|'
r'ref|return|sealed|sizeof|stackalloc|static|'
r'switch|this|throw|true|try|typeof|'
r'unchecked|unsafe|virtual|void|while|'
r'get|set|new|partial|yield|add|remove|value|alias|ascending|'
r'descending|from|group|into|orderby|select|where|'
r'join|equals)\b', Keyword),
(r'(global)(::)', bygroups(Keyword, Punctuation)),
(r'(bool|byte|char|decimal|double|dynamic|float|int|long|object|'
r'sbyte|short|string|uint|ulong|ushort|var)\b\??', Keyword.Type),
(r'(class|struct)(\s+)', bygroups(Keyword, Text), 'class'),
(r'(namespace|using)(\s+)', bygroups(Keyword, Text), 'namespace'),
(cs_ident, Name),
],
'class': [
(cs_ident, Name.Class, '#pop'),
default('#pop'),
],
'namespace': [
(r'(?=\()', Text, '#pop'), # using (resource)
('(' + cs_ident + r'|\.)+', Name.Namespace, '#pop'),
]
}
def __init__(self, **options):
level = get_choice_opt(options, 'unicodelevel', list(self.tokens), 'basic')
if level not in self._all_tokens:
# compile the regexes now
self._tokens = self.__class__.process_tokendef(level)
else:
self._tokens = self._all_tokens[level]
RegexLexer.__init__(self, **options)
class NemerleLexer(RegexLexer):
"""
For `Nemerle `_ source code.
Additional options accepted:
`unicodelevel`
Determines which Unicode characters this lexer allows for identifiers.
The possible values are:
* ``none`` -- only the ASCII letters and numbers are allowed. This
is the fastest selection.
* ``basic`` -- all Unicode characters from the specification except
category ``Lo`` are allowed.
* ``full`` -- all Unicode characters as specified in the C# specs
are allowed. Note that this means a considerable slowdown since the
``Lo`` category has more than 40,000 characters in it!
The default value is ``basic``.
.. versionadded:: 1.5
"""
name = 'Nemerle'
aliases = ['nemerle']
filenames = ['*.n']
mimetypes = ['text/x-nemerle'] # inferred
flags = re.MULTILINE | re.DOTALL | re.UNICODE
# for the range of allowed unicode characters in identifiers, see
# http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-334.pdf
levels = {
'none': '@?[_a-zA-Z]\w*',
'basic': ('@?[_' + uni.combine('Lu', 'Ll', 'Lt', 'Lm', 'Nl') + ']' +
'[' + uni.combine('Lu', 'Ll', 'Lt', 'Lm', 'Nl', 'Nd', 'Pc',
'Cf', 'Mn', 'Mc') + ']*'),
'full': ('@?(?:_|[^' +
uni.allexcept('Lu', 'Ll', 'Lt', 'Lm', 'Lo', 'Nl') + '])'
+ '[^' + uni.allexcept('Lu', 'Ll', 'Lt', 'Lm', 'Lo', 'Nl',
'Nd', 'Pc', 'Cf', 'Mn', 'Mc') + ']*'),
}
tokens = {}
token_variants = True
for levelname, cs_ident in iteritems(levels):
tokens[levelname] = {
'root': [
# method names
(r'^([ \t]*(?:' + cs_ident + r'(?:\[\])?\s+)+?)' # return type
r'(' + cs_ident + ')' # method name
r'(\s*)(\()', # signature start
bygroups(using(this), Name.Function, Text, Punctuation)),
(r'^\s*\[.*?\]', Name.Attribute),
(r'[^\S\n]+', Text),
(r'\\\n', Text), # line continuation
(r'//.*?\n', Comment.Single),
(r'/[*].*?[*]/', Comment.Multiline),
(r'\n', Text),
(r'\$\s*"', String, 'splice-string'),
(r'\$\s*<#', String, 'splice-string2'),
(r'<#', String, 'recursive-string'),
(r'(<\[)\s*(' + cs_ident + ':)?', Keyword),
(r'\]\>', Keyword),
# quasiquotation only
(r'\$' + cs_ident, Name),
(r'(\$)(\()', bygroups(Name, Punctuation),
'splice-string-content'),
(r'[~!%^&*()+=|\[\]:;,.<>/?-]', Punctuation),
(r'[{}]', Punctuation),
(r'@"(""|[^"])*"', String),
(r'"(\\\\|\\"|[^"\n])*["\n]', String),
(r"'\\.'|'[^\\]'", String.Char),
(r"0[xX][0-9a-fA-F]+[Ll]?", Number),
(r"[0-9](\.[0-9]*)?([eE][+-][0-9]+)?[flFLdD]?", Number),
(r'#[ \t]*(if|endif|else|elif|define|undef|'
r'line|error|warning|region|endregion|pragma)\b.*?\n',
Comment.Preproc),
(r'\b(extern)(\s+)(alias)\b', bygroups(Keyword, Text,
Keyword)),
(r'(abstract|and|as|base|catch|def|delegate|'
r'enum|event|extern|false|finally|'
r'fun|implements|interface|internal|'
r'is|macro|match|matches|module|mutable|new|'
r'null|out|override|params|partial|private|'
r'protected|public|ref|sealed|static|'
r'syntax|this|throw|true|try|type|typeof|'
r'virtual|volatile|when|where|with|'
r'assert|assert2|async|break|checked|continue|do|else|'
r'ensures|for|foreach|if|late|lock|new|nolate|'
r'otherwise|regexp|repeat|requires|return|surroundwith|'
r'unchecked|unless|using|while|yield)\b', Keyword),
(r'(global)(::)', bygroups(Keyword, Punctuation)),
(r'(bool|byte|char|decimal|double|float|int|long|object|sbyte|'
r'short|string|uint|ulong|ushort|void|array|list)\b\??',
Keyword.Type),
(r'(:>?)\s*(' + cs_ident + r'\??)',
bygroups(Punctuation, Keyword.Type)),
(r'(class|struct|variant|module)(\s+)',
bygroups(Keyword, Text), 'class'),
(r'(namespace|using)(\s+)', bygroups(Keyword, Text),
'namespace'),
(cs_ident, Name),
],
'class': [
(cs_ident, Name.Class, '#pop')
],
'namespace': [
(r'(?=\()', Text, '#pop'), # using (resource)
('(' + cs_ident + r'|\.)+', Name.Namespace, '#pop')
],
'splice-string': [
(r'[^"$]', String),
(r'\$' + cs_ident, Name),
(r'(\$)(\()', bygroups(Name, Punctuation),
'splice-string-content'),
(r'\\"', String),
(r'"', String, '#pop')
],
'splice-string2': [
(r'[^#<>$]', String),
(r'\$' + cs_ident, Name),
(r'(\$)(\()', bygroups(Name, Punctuation),
'splice-string-content'),
(r'<#', String, '#push'),
(r'#>', String, '#pop')
],
'recursive-string': [
(r'[^#<>]', String),
(r'<#', String, '#push'),
(r'#>', String, '#pop')
],
'splice-string-content': [
(r'if|match', Keyword),
(r'[~!%^&*+=|\[\]:;,.<>/?-\\"$ ]', Punctuation),
(cs_ident, Name),
(r'\d+', Number),
(r'\(', Punctuation, '#push'),
(r'\)', Punctuation, '#pop')
]
}
def __init__(self, **options):
level = get_choice_opt(options, 'unicodelevel', list(self.tokens),
'basic')
if level not in self._all_tokens:
# compile the regexes now
self._tokens = self.__class__.process_tokendef(level)
else:
self._tokens = self._all_tokens[level]
RegexLexer.__init__(self, **options)
class BooLexer(RegexLexer):
"""
For `Boo )(.*?)()', bygroups(using(XmlLexer),
Other,
using(XmlLexer))),
(r'(.+?)(?=<)', using(XmlLexer)),
(r'.+', using(XmlLexer)),
],
}
# TODO support multiple languages within the same source file
class CSharpAspxLexer(DelegatingLexer):
"""
Lexer for highlighting C# within ASP.NET pages.
"""
name = 'aspx-cs'
aliases = ['aspx-cs']
filenames = ['*.aspx', '*.asax', '*.ascx', '*.ashx', '*.asmx', '*.axd']
mimetypes = []
def __init__(self, **options):
super(CSharpAspxLexer, self).__init__(CSharpLexer, GenericAspxLexer,
**options)
def analyse_text(text):
if re.search(r'Page\s*Language="C#"', text, re.I) is not None:
return 0.2
elif re.search(r'script[^>]+language=["\']C#', text, re.I) is not None:
return 0.15
class VbNetAspxLexer(DelegatingLexer):
"""
Lexer for highlighting Visual Basic.net within ASP.NET pages.
"""
name = 'aspx-vb'
aliases = ['aspx-vb']
filenames = ['*.aspx', '*.asax', '*.ascx', '*.ashx', '*.asmx', '*.axd']
mimetypes = []
def __init__(self, **options):
super(VbNetAspxLexer, self).__init__(VbNetLexer, GenericAspxLexer,
**options)
def analyse_text(text):
if re.search(r'Page\s*Language="Vb"', text, re.I) is not None:
return 0.2
elif re.search(r'script[^>]+language=["\']vb', text, re.I) is not None:
return 0.15
# Very close to functional.OcamlLexer
class FSharpLexer(RegexLexer):
"""
For the F# language (version 3.0).
AAAAACK Strings
http://research.microsoft.com/en-us/um/cambridge/projects/fsharp/manual/spec.html#_Toc335818775
.. versionadded:: 1.5
"""
name = 'FSharp'
aliases = ['fsharp']
filenames = ['*.fs', '*.fsi']
mimetypes = ['text/x-fsharp']
keywords = [
'abstract', 'as', 'assert', 'base', 'begin', 'class', 'default',
'delegate', 'do!', 'do', 'done', 'downcast', 'downto', 'elif', 'else',
'end', 'exception', 'extern', 'false', 'finally', 'for', 'function',
'fun', 'global', 'if', 'inherit', 'inline', 'interface', 'internal',
'in', 'lazy', 'let!', 'let', 'match', 'member', 'module', 'mutable',
'namespace', 'new', 'null', 'of', 'open', 'override', 'private', 'public',
'rec', 'return!', 'return', 'select', 'static', 'struct', 'then', 'to',
'true', 'try', 'type', 'upcast', 'use!', 'use', 'val', 'void', 'when',
'while', 'with', 'yield!', 'yield',
]
# Reserved words; cannot hurt to color them as keywords too.
keywords += [
'atomic', 'break', 'checked', 'component', 'const', 'constraint',
'constructor', 'continue', 'eager', 'event', 'external', 'fixed',
'functor', 'include', 'method', 'mixin', 'object', 'parallel',
'process', 'protected', 'pure', 'sealed', 'tailcall', 'trait',
'virtual', 'volatile',
]
keyopts = [
'!=', '#', '&&', '&', '\(', '\)', '\*', '\+', ',', '-\.',
'->', '-', '\.\.', '\.', '::', ':=', ':>', ':', ';;', ';', '<-',
'<\]', '<', '>\]', '>', '\?\?', '\?', '\[<', '\[\|', '\[', '\]',
'_', '`', '\{', '\|\]', '\|', '\}', '~', '<@@', '<@', '=', '@>', '@@>',
]
operators = r'[!$%&*+\./:<=>?@^|~-]'
word_operators = ['and', 'or', 'not']
prefix_syms = r'[!?~]'
infix_syms = r'[=<>@^|&+\*/$%-]'
primitives = [
'sbyte', 'byte', 'char', 'nativeint', 'unativeint', 'float32', 'single',
'float', 'double', 'int8', 'uint8', 'int16', 'uint16', 'int32',
'uint32', 'int64', 'uint64', 'decimal', 'unit', 'bool', 'string',
'list', 'exn', 'obj', 'enum',
]
# See http://msdn.microsoft.com/en-us/library/dd233181.aspx and/or
# http://fsharp.org/about/files/spec.pdf for reference. Good luck.
tokens = {
'escape-sequence': [
(r'\\[\\"\'ntbrafv]', String.Escape),
(r'\\[0-9]{3}', String.Escape),
(r'\\u[0-9a-fA-F]{4}', String.Escape),
(r'\\U[0-9a-fA-F]{8}', String.Escape),
],
'root': [
(r'\s+', Text),
(r'\(\)|\[\]', Name.Builtin.Pseudo),
(r'\b(?