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usse/funda-scraper/venv/lib/python3.10/site-packages/pygments/lexers/dotnet.py

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2023-02-20 22:38:24 +00:00
"""
pygments.lexers.dotnet
~~~~~~~~~~~~~~~~~~~~~~
Lexers for .net languages.
:copyright: Copyright 2006-2022 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, words
from pygments.token import Punctuation, Text, Comment, Operator, Keyword, \
Name, String, Number, Literal, Other, Whitespace
from pygments.util import get_choice_opt
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#'
url = 'https://docs.microsoft.com/en-us/dotnet/csharp/'
aliases = ['csharp', 'c#', 'cs']
filenames = ['*.cs']
mimetypes = ['text/x-csharp'] # inferred
flags = re.MULTILINE | re.DOTALL
# for the range of allowed unicode characters in identifiers, see
# http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-334.pdf
levels = {
'none': r'@?[_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 levels.items():
tokens[levelname] = {
'root': [
# method names
(r'^([ \t]*)((?:' + cs_ident + r'(?:\[\])?\s+)+?)' # return type
r'(' + cs_ident + ')' # method name
r'(\s*)(\()', # signature start
bygroups(Whitespace, using(this), Name.Function, Whitespace,
Punctuation)),
(r'^(\s*)(\[.*?\])', bygroups(Whitespace, Name.Attribute)),
(r'[^\S\n]+', Whitespace),
(r'(\\)(\n)', bygroups(Text, Whitespace)), # line continuation
(r'//.*?\n', Comment.Single),
(r'/[*].*?[*]/', Comment.Multiline),
(r'\n', Whitespace),
(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)',
bygroups(Comment.Preproc, Whitespace, Comment.Preproc,
Comment.Preproc, Whitespace)),
(r'\b(extern)(\s+)(alias)\b', bygroups(Keyword, Whitespace,
Keyword)),
(r'(abstract|as|async|await|base|break|by|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|let|lock|new|null|on|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|thenby|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, Whitespace), 'class'),
(r'(namespace|using)(\s+)', bygroups(Keyword, Whitespace), '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'
url = 'http://nemerle.org'
aliases = ['nemerle']
filenames = ['*.n']
mimetypes = ['text/x-nemerle'] # inferred
flags = re.MULTILINE | re.DOTALL
# for the range of allowed unicode characters in identifiers, see
# http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-334.pdf
levels = {
'none': r'@?[_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 levels.items():
tokens[levelname] = {
'root': [
# method names
(r'^([ \t]*)((?:' + cs_ident + r'(?:\[\])?\s+)+?)' # return type
r'(' + cs_ident + ')' # method name
r'(\s*)(\()', # signature start
bygroups(Whitespace, using(this), Name.Function, Whitespace, \
Punctuation)),
(r'^(\s*)(\[.*?\])', bygroups(Whitespace, Name.Attribute)),
(r'[^\S\n]+', Whitespace),
(r'(\\)(\n)', bygroups(Text, Whitespace)), # line continuation
(r'//.*?\n', Comment.Single),
(r'/[*].*?[*]/', Comment.Multiline),
(r'\n', Whitespace),
(r'(\$)(\s*)(")', bygroups(String, Whitespace, String),
'splice-string'),
(r'(\$)(\s*)(<#)', bygroups(String, Whitespace, String),
'splice-string2'),
(r'<#', String, 'recursive-string'),
(r'(<\[)(\s*)(' + cs_ident + ':)?', bygroups(Keyword,
Whitespace, Keyword)),
(r'\]\>', 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',
bygroups(Comment.Preproc, Whitespace, Comment.Preproc), 'preproc'),
(r'\b(extern)(\s+)(alias)\b', bygroups(Keyword, Whitespace, 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, Whitespace, Keyword.Type)),
(r'(class|struct|variant|module)(\s+)',
bygroups(Keyword, Whitespace), 'class'),
(r'(namespace|using)(\s+)', bygroups(Keyword, Whitespace),
'namespace'),
(cs_ident, Name),
],
'class': [
(cs_ident, Name.Class, '#pop')
],
'preproc': [
(r'\w+', Comment.Preproc),
(r'[ \t]+', Whitespace),
(r'\n', Whitespace, '#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)
def analyse_text(text):
"""Nemerle is quite similar to Python, but @if is relatively uncommon
elsewhere."""
result = 0
if '@if' in text:
result += 0.1
return result
class BooLexer(RegexLexer):
"""
For Boo source code.
"""
name = 'Boo'
url = 'https://github.com/boo-lang/boo'
aliases = ['boo']
filenames = ['*.boo']
mimetypes = ['text/x-boo']
tokens = {
'root': [
(r'\s+', Whitespace),
(r'(#|//).*$', Comment.Single),
(r'/[*]', Comment.Multiline, 'comment'),
(r'[]{}:(),.;[]', Punctuation),
(r'(\\)(\n)', bygroups(Text, Whitespace)),
(r'\\', Text),
(r'(in|is|and|or|not)\b', Operator.Word),
(r'/(\\\\|\\[^\\]|[^/\\\s])/', String.Regex),
(r'@/(\\\\|\\[^\\]|[^/\\])*/', String.Regex),
(r'=~|!=|==|<<|>>|[-+/*%=<>&^|]', Operator),
(r'(as|abstract|callable|constructor|destructor|do|import|'
r'enum|event|final|get|interface|internal|of|override|'
r'partial|private|protected|public|return|set|static|'
r'struct|transient|virtual|yield|super|and|break|cast|'
r'continue|elif|else|ensure|except|for|given|goto|if|in|'
r'is|isa|not|or|otherwise|pass|raise|ref|try|unless|when|'
r'while|from|as)\b', Keyword),
(r'def(?=\s+\(.*?\))', Keyword),
(r'(def)(\s+)', bygroups(Keyword, Whitespace), 'funcname'),
(r'(class)(\s+)', bygroups(Keyword, Whitespace), 'classname'),
(r'(namespace)(\s+)', bygroups(Keyword, Whitespace), 'namespace'),
(r'(?<!\.)(true|false|null|self|__eval__|__switch__|array|'
r'assert|checked|enumerate|filter|getter|len|lock|map|'
r'matrix|max|min|normalArrayIndexing|print|property|range|'
r'rawArrayIndexing|required|typeof|unchecked|using|'
r'yieldAll|zip)\b', Name.Builtin),
(r'"""(\\\\|\\"|.*?)"""', String.Double),
(r'"(\\\\|\\[^\\]|[^"\\])*"', String.Double),
(r"'(\\\\|\\[^\\]|[^'\\])*'", String.Single),
(r'[a-zA-Z_]\w*', Name),
(r'(\d+\.\d*|\d*\.\d+)([fF][+-]?[0-9]+)?', Number.Float),
(r'[0-9][0-9.]*(ms?|d|h|s)', Number),
(r'0\d+', Number.Oct),
(r'0x[a-fA-F0-9]+', Number.Hex),
(r'\d+L', Number.Integer.Long),
(r'\d+', Number.Integer),
],
'comment': [
('/[*]', Comment.Multiline, '#push'),
('[*]/', Comment.Multiline, '#pop'),
('[^/*]', Comment.Multiline),
('[*/]', Comment.Multiline)
],
'funcname': [
(r'[a-zA-Z_]\w*', Name.Function, '#pop')
],
'classname': [
(r'[a-zA-Z_]\w*', Name.Class, '#pop')
],
'namespace': [
(r'[a-zA-Z_][\w.]*', Name.Namespace, '#pop')
]
}
class VbNetLexer(RegexLexer):
"""
For Visual Basic.NET source code.
Also LibreOffice Basic, OpenOffice Basic, and StarOffice Basic.
"""
name = 'VB.net'
url = 'https://docs.microsoft.com/en-us/dotnet/visual-basic/'
aliases = ['vb.net', 'vbnet', 'lobas', 'oobas', 'sobas']
filenames = ['*.vb', '*.bas']
mimetypes = ['text/x-vbnet', 'text/x-vba'] # (?)
uni_name = '[_' + uni.combine('Ll', 'Lt', 'Lm', 'Nl') + ']' + \
'[' + uni.combine('Ll', 'Lt', 'Lm', 'Nl', 'Nd', 'Pc',
'Cf', 'Mn', 'Mc') + ']*'
flags = re.MULTILINE | re.IGNORECASE
tokens = {
'root': [
(r'^\s*<.*?>', Name.Attribute),
(r'\s+', Whitespace),
(r'\n', Whitespace),
(r'(rem\b.*?)(\n)', bygroups(Comment, Whitespace)),
(r"('.*?)(\n)", bygroups(Comment, Whitespace)),
(r'#If\s.*?\sThen|#ElseIf\s.*?\sThen|#Else|#End\s+If|#Const|'
r'#ExternalSource.*?\n|#End\s+ExternalSource|'
r'#Region.*?\n|#End\s+Region|#ExternalChecksum',
Comment.Preproc),
(r'[(){}!#,.:]', Punctuation),
(r'(Option)(\s+)(Strict|Explicit|Compare)(\s+)'
r'(On|Off|Binary|Text)', bygroups(Keyword.Declaration, Whitespace,
Keyword.Declaration, Whitespace, Keyword.Declaration)),
(words((
'AddHandler', 'Alias', 'ByRef', 'ByVal', 'Call', 'Case',
'Catch', 'CBool', 'CByte', 'CChar', 'CDate', 'CDec', 'CDbl',
'CInt', 'CLng', 'CObj', 'Continue', 'CSByte', 'CShort', 'CSng',
'CStr', 'CType', 'CUInt', 'CULng', 'CUShort', 'Declare',
'Default', 'Delegate', 'DirectCast', 'Do', 'Each', 'Else',
'ElseIf', 'EndIf', 'Erase', 'Error', 'Event', 'Exit', 'False',
'Finally', 'For', 'Friend', 'Get', 'Global', 'GoSub', 'GoTo',
'Handles', 'If', 'Implements', 'Inherits', 'Interface', 'Let',
'Lib', 'Loop', 'Me', 'MustInherit', 'MustOverride', 'MyBase',
'MyClass', 'Narrowing', 'New', 'Next', 'Not', 'Nothing',
'NotInheritable', 'NotOverridable', 'Of', 'On', 'Operator',
'Option', 'Optional', 'Overloads', 'Overridable', 'Overrides',
'ParamArray', 'Partial', 'Private', 'Protected', 'Public',
'RaiseEvent', 'ReadOnly', 'ReDim', 'RemoveHandler', 'Resume',
'Return', 'Select', 'Set', 'Shadows', 'Shared', 'Single',
'Static', 'Step', 'Stop', 'SyncLock', 'Then', 'Throw', 'To',
'True', 'Try', 'TryCast', 'Wend', 'Using', 'When', 'While',
'Widening', 'With', 'WithEvents', 'WriteOnly'),
prefix=r'(?<!\.)', suffix=r'\b'), Keyword),
(r'(?<!\.)End\b', Keyword, 'end'),
(r'(?<!\.)(Dim|Const)\b', Keyword, 'dim'),
(r'(?<!\.)(Function|Sub|Property)(\s+)',
bygroups(Keyword, Whitespace), 'funcname'),
(r'(?<!\.)(Class|Structure|Enum)(\s+)',
bygroups(Keyword, Whitespace), 'classname'),
(r'(?<!\.)(Module|Namespace|Imports)(\s+)',
bygroups(Keyword, Whitespace), 'namespace'),
(r'(?<!\.)(Boolean|Byte|Char|Date|Decimal|Double|Integer|Long|'
r'Object|SByte|Short|Single|String|Variant|UInteger|ULong|'
r'UShort)\b', Keyword.Type),
(r'(?<!\.)(AddressOf|And|AndAlso|As|GetType|In|Is|IsNot|Like|Mod|'
r'Or|OrElse|TypeOf|Xor)\b', Operator.Word),
(r'&=|[*]=|/=|\\=|\^=|\+=|-=|<<=|>>=|<<|>>|:=|'
r'<=|>=|<>|[-&*/\\^+=<>\[\]]',
Operator),
('"', String, 'string'),
(r'(_)(\n)', bygroups(Text, Whitespace)), # Line continuation (must be before Name)
(uni_name + '[%&@!#$]?', Name),
('#.*?#', Literal.Date),
(r'(\d+\.\d*|\d*\.\d+)(F[+-]?[0-9]+)?', Number.Float),
(r'\d+([SILDFR]|US|UI|UL)?', Number.Integer),
(r'&H[0-9a-f]+([SILDFR]|US|UI|UL)?', Number.Integer),
(r'&O[0-7]+([SILDFR]|US|UI|UL)?', Number.Integer),
],
'string': [
(r'""', String),
(r'"C?', String, '#pop'),
(r'[^"]+', String),
],
'dim': [
(uni_name, Name.Variable, '#pop'),
default('#pop'), # any other syntax
],
'funcname': [
(uni_name, Name.Function, '#pop'),
],
'classname': [
(uni_name, Name.Class, '#pop'),
],
'namespace': [
(uni_name, Name.Namespace),
(r'\.', Name.Namespace),
default('#pop'),
],
'end': [
(r'\s+', Whitespace),
(r'(Function|Sub|Property|Class|Structure|Enum|Module|Namespace)\b',
Keyword, '#pop'),
default('#pop'),
]
}
def analyse_text(text):
if re.search(r'^\s*(#If|Module|Namespace)', text, re.MULTILINE):
return 0.5
class GenericAspxLexer(RegexLexer):
"""
Lexer for ASP.NET pages.
"""
name = 'aspx-gen'
filenames = []
mimetypes = []
flags = re.DOTALL
tokens = {
'root': [
(r'(<%[@=#]?)(.*?)(%>)', bygroups(Name.Tag, Other, Name.Tag)),
(r'(<script.*?>)(.*?)(</script>)', 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().__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().__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).
.. versionadded:: 1.5
"""
name = 'F#'
url= 'https://fsharp.org/'
aliases = ['fsharp', 'f#']
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 = [
'!=', '#', '&&', '&', r'\(', r'\)', r'\*', r'\+', ',', r'-\.',
'->', '-', r'\.\.', r'\.', '::', ':=', ':>', ':', ';;', ';', '<-',
r'<\]', '<', r'>\]', '>', r'\?\?', r'\?', r'\[<', r'\[\|', r'\[', r'\]',
'_', '`', r'\{', r'\|\]', r'\|', r'\}', '~', '<@@', '<@', '=', '@>', '@@>',
]
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+', Whitespace),
(r'\(\)|\[\]', Name.Builtin.Pseudo),
(r'\b(?<!\.)([A-Z][\w\']*)(?=\s*\.)',
Name.Namespace, 'dotted'),
(r'\b([A-Z][\w\']*)', Name),
(r'(///.*?)(\n)', bygroups(String.Doc, Whitespace)),
(r'(//.*?)(\n)', bygroups(Comment.Single, Whitespace)),
(r'\(\*(?!\))', Comment, 'comment'),
(r'@"', String, 'lstring'),
(r'"""', String, 'tqs'),
(r'"', String, 'string'),
(r'\b(open|module)(\s+)([\w.]+)',
bygroups(Keyword, Whitespace, Name.Namespace)),
(r'\b(let!?)(\s+)(\w+)',
bygroups(Keyword, Whitespace, Name.Variable)),
(r'\b(type)(\s+)(\w+)',
bygroups(Keyword, Whitespace, Name.Class)),
(r'\b(member|override)(\s+)(\w+)(\.)(\w+)',
bygroups(Keyword, Whitespace, Name, Punctuation, Name.Function)),
(r'\b(%s)\b' % '|'.join(keywords), Keyword),
(r'``([^`\n\r\t]|`[^`\n\r\t])+``', Name),
(r'(%s)' % '|'.join(keyopts), Operator),
(r'(%s|%s)?%s' % (infix_syms, prefix_syms, operators), Operator),
(r'\b(%s)\b' % '|'.join(word_operators), Operator.Word),
(r'\b(%s)\b' % '|'.join(primitives), Keyword.Type),
(r'(#)([ \t]*)(if|endif|else|line|nowarn|light|\d+)\b(.*?)(\n)',
bygroups(Comment.Preproc, Whitespace, Comment.Preproc,
Comment.Preproc, Whitespace)),
(r"[^\W\d][\w']*", Name),
(r'\d[\d_]*[uU]?[yslLnQRZINGmM]?', Number.Integer),
(r'0[xX][\da-fA-F][\da-fA-F_]*[uU]?[yslLn]?[fF]?', Number.Hex),
(r'0[oO][0-7][0-7_]*[uU]?[yslLn]?', Number.Oct),
(r'0[bB][01][01_]*[uU]?[yslLn]?', Number.Bin),
(r'-?\d[\d_]*(.[\d_]*)?([eE][+\-]?\d[\d_]*)[fFmM]?',
Number.Float),
(r"'(?:(\\[\\\"'ntbr ])|(\\[0-9]{3})|(\\x[0-9a-fA-F]{2}))'B?",
String.Char),
(r"'.'", String.Char),
(r"'", Keyword), # a stray quote is another syntax element
(r'@?"', String.Double, 'string'),
(r'[~?][a-z][\w\']*:', Name.Variable),
],
'dotted': [
(r'\s+', Whitespace),
(r'\.', Punctuation),
(r'[A-Z][\w\']*(?=\s*\.)', Name.Namespace),
(r'[A-Z][\w\']*', Name, '#pop'),
(r'[a-z_][\w\']*', Name, '#pop'),
# e.g. dictionary index access
default('#pop'),
],
'comment': [
(r'[^(*)@"]+', Comment),
(r'\(\*', Comment, '#push'),
(r'\*\)', Comment, '#pop'),
# comments cannot be closed within strings in comments
(r'@"', String, 'lstring'),
(r'"""', String, 'tqs'),
(r'"', String, 'string'),
(r'[(*)@]', Comment),
],
'string': [
(r'[^\\"]+', String),
include('escape-sequence'),
(r'\\\n', String),
(r'\n', String), # newlines are allowed in any string
(r'"B?', String, '#pop'),
],
'lstring': [
(r'[^"]+', String),
(r'\n', String),
(r'""', String),
(r'"B?', String, '#pop'),
],
'tqs': [
(r'[^"]+', String),
(r'\n', String),
(r'"""B?', String, '#pop'),
(r'"', String),
],
}
def analyse_text(text):
"""F# doesn't have that many unique features -- |> and <| are weak
indicators."""
result = 0
if '|>' in text:
result += 0.05
if '<|' in text:
result += 0.05
return result
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