867 lines
32 KiB
Python
867 lines
32 KiB
Python
|
"""
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pygments.lexers.haskell
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~~~~~~~~~~~~~~~~~~~~~~~
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Lexers for Haskell and related languages.
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:copyright: Copyright 2006-2024 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, bygroups, do_insertions, \
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default, include, inherit, line_re
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from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
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Number, Punctuation, Generic, Whitespace
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from pygments import unistring as uni
|
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__all__ = ['HaskellLexer', 'HspecLexer', 'IdrisLexer', 'AgdaLexer', 'CryptolLexer',
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'LiterateHaskellLexer', 'LiterateIdrisLexer', 'LiterateAgdaLexer',
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'LiterateCryptolLexer', 'KokaLexer']
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class HaskellLexer(RegexLexer):
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"""
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A Haskell lexer based on the lexemes defined in the Haskell 98 Report.
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"""
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name = 'Haskell'
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url = 'https://www.haskell.org/'
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aliases = ['haskell', 'hs']
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filenames = ['*.hs']
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mimetypes = ['text/x-haskell']
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version_added = '0.8'
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reserved = ('case', 'class', 'data', 'default', 'deriving', 'do', 'else',
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'family', 'if', 'in', 'infix[lr]?', 'instance',
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'let', 'newtype', 'of', 'then', 'type', 'where', '_')
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ascii = ('NUL', 'SOH', '[SE]TX', 'EOT', 'ENQ', 'ACK',
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'BEL', 'BS', 'HT', 'LF', 'VT', 'FF', 'CR', 'S[OI]', 'DLE',
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'DC[1-4]', 'NAK', 'SYN', 'ETB', 'CAN',
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'EM', 'SUB', 'ESC', '[FGRU]S', 'SP', 'DEL')
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tokens = {
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'root': [
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# Whitespace:
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(r'\s+', Whitespace),
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# (r'--\s*|.*$', Comment.Doc),
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(r'--(?![!#$%&*+./<=>?@^|_~:\\]).*?$', Comment.Single),
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(r'\{-', Comment.Multiline, 'comment'),
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# Lexemes:
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# Identifiers
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(r'\bimport\b', Keyword.Reserved, 'import'),
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(r'\bmodule\b', Keyword.Reserved, 'module'),
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(r'\berror\b', Name.Exception),
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(r'\b({})(?!\')\b'.format('|'.join(reserved)), Keyword.Reserved),
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(r"'[^\\]'", String.Char), # this has to come before the TH quote
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(r'^[_' + uni.Ll + r'][\w\']*', Name.Function),
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(r"'?[_" + uni.Ll + r"][\w']*", Name),
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(r"('')?[" + uni.Lu + r"][\w\']*", Keyword.Type),
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(r"(')[" + uni.Lu + r"][\w\']*", Keyword.Type),
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(r"(')\[[^\]]*\]", Keyword.Type), # tuples and lists get special treatment in GHC
|
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(r"(')\([^)]*\)", Keyword.Type), # ..
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(r"(')[:!#$%&*+.\\/<=>?@^|~-]+", Keyword.Type), # promoted type operators
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||
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# Operators
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(r'\\(?![:!#$%&*+.\\/<=>?@^|~-]+)', Name.Function), # lambda operator
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(r'(<-|::|->|=>|=)(?![:!#$%&*+.\\/<=>?@^|~-]+)', Operator.Word), # specials
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(r':[:!#$%&*+.\\/<=>?@^|~-]*', Keyword.Type), # Constructor operators
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(r'[:!#$%&*+.\\/<=>?@^|~-]+', Operator), # Other operators
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||
|
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# Numbers
|
||
|
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(r'0[xX]_*[\da-fA-F](_*[\da-fA-F])*_*[pP][+-]?\d(_*\d)*', Number.Float),
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(r'0[xX]_*[\da-fA-F](_*[\da-fA-F])*\.[\da-fA-F](_*[\da-fA-F])*'
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r'(_*[pP][+-]?\d(_*\d)*)?', Number.Float),
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(r'\d(_*\d)*_*[eE][+-]?\d(_*\d)*', Number.Float),
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(r'\d(_*\d)*\.\d(_*\d)*(_*[eE][+-]?\d(_*\d)*)?', Number.Float),
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||
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(r'0[bB]_*[01](_*[01])*', Number.Bin),
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||
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(r'0[oO]_*[0-7](_*[0-7])*', Number.Oct),
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||
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(r'0[xX]_*[\da-fA-F](_*[\da-fA-F])*', Number.Hex),
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||
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(r'\d(_*\d)*', Number.Integer),
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||
|
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# Character/String Literals
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||
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(r"'", String.Char, 'character'),
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||
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(r'"', String, 'string'),
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||
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# Special
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||
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(r'\[\]', Keyword.Type),
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||
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(r'\(\)', Name.Builtin),
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(r'[][(),;`{}]', Punctuation),
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],
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'import': [
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# Import statements
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||
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(r'\s+', Whitespace),
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||
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(r'"', String, 'string'),
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# after "funclist" state
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(r'\)', Punctuation, '#pop'),
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(r'qualified\b', Keyword),
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# import X as Y
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(r'([' + uni.Lu + r'][\w.]*)(\s+)(as)(\s+)([' + uni.Lu + r'][\w.]*)',
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bygroups(Name.Namespace, Whitespace, Keyword, Whitespace, Name), '#pop'),
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# import X hiding (functions)
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(r'([' + uni.Lu + r'][\w.]*)(\s+)(hiding)(\s+)(\()',
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bygroups(Name.Namespace, Whitespace, Keyword, Whitespace, Punctuation), 'funclist'),
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# import X (functions)
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(r'([' + uni.Lu + r'][\w.]*)(\s+)(\()',
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bygroups(Name.Namespace, Whitespace, Punctuation), 'funclist'),
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# import X
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(r'[\w.]+', Name.Namespace, '#pop'),
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],
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'module': [
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(r'\s+', Whitespace),
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(r'([' + uni.Lu + r'][\w.]*)(\s+)(\()',
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bygroups(Name.Namespace, Whitespace, Punctuation), 'funclist'),
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(r'[' + uni.Lu + r'][\w.]*', Name.Namespace, '#pop'),
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],
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'funclist': [
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(r'\s+', Whitespace),
|
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(r'[' + uni.Lu + r']\w*', Keyword.Type),
|
||
|
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(r'(_[\w\']+|[' + uni.Ll + r'][\w\']*)', Name.Function),
|
||
|
|
(r'--(?![!#$%&*+./<=>?@^|_~:\\]).*?$', Comment.Single),
|
||
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(r'\{-', Comment.Multiline, 'comment'),
|
||
|
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(r',', Punctuation),
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||
|
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(r'[:!#$%&*+.\\/<=>?@^|~-]+', Operator),
|
||
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# (HACK, but it makes sense to push two instances, believe me)
|
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(r'\(', Punctuation, ('funclist', 'funclist')),
|
||
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(r'\)', Punctuation, '#pop:2'),
|
||
|
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],
|
||
|
|
# NOTE: the next four states are shared in the AgdaLexer; make sure
|
||
|
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# any change is compatible with Agda as well or copy over and change
|
||
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'comment': [
|
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# Multiline Comments
|
||
|
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(r'[^-{}]+', Comment.Multiline),
|
||
|
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(r'\{-', Comment.Multiline, '#push'),
|
||
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(r'-\}', Comment.Multiline, '#pop'),
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||
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(r'[-{}]', Comment.Multiline),
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],
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'character': [
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# Allows multi-chars, incorrectly.
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(r"[^\\']'", String.Char, '#pop'),
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(r"\\", String.Escape, 'escape'),
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("'", String.Char, '#pop'),
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||
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],
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'string': [
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||
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(r'[^\\"]+', String),
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||
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(r"\\", String.Escape, 'escape'),
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||
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('"', String, '#pop'),
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||
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],
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'escape': [
|
||
|
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(r'[abfnrtv"\'&\\]', String.Escape, '#pop'),
|
||
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(r'\^[][' + uni.Lu + r'@^_]', String.Escape, '#pop'),
|
||
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('|'.join(ascii), String.Escape, '#pop'),
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||
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(r'o[0-7]+', String.Escape, '#pop'),
|
||
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(r'x[\da-fA-F]+', String.Escape, '#pop'),
|
||
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(r'\d+', String.Escape, '#pop'),
|
||
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(r'(\s+)(\\)', bygroups(Whitespace, String.Escape), '#pop'),
|
||
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],
|
||
|
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}
|
||
|
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||
|
|
|
||
|
|
class HspecLexer(HaskellLexer):
|
||
|
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"""
|
||
|
|
A Haskell lexer with support for Hspec constructs.
|
||
|
|
"""
|
||
|
|
|
||
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|
name = 'Hspec'
|
||
|
|
aliases = ['hspec']
|
||
|
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filenames = ['*Spec.hs']
|
||
|
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mimetypes = []
|
||
|
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version_added = '2.4'
|
||
|
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||
|
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tokens = {
|
||
|
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'root': [
|
||
|
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(r'(it)(\s*)("[^"]*")', bygroups(Text, Whitespace, String.Doc)),
|
||
|
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(r'(describe)(\s*)("[^"]*")', bygroups(Text, Whitespace, String.Doc)),
|
||
|
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(r'(context)(\s*)("[^"]*")', bygroups(Text, Whitespace, String.Doc)),
|
||
|
|
inherit,
|
||
|
|
],
|
||
|
|
}
|
||
|
|
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||
|
|
|
||
|
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class IdrisLexer(RegexLexer):
|
||
|
|
"""
|
||
|
|
A lexer for the dependently typed programming language Idris.
|
||
|
|
|
||
|
|
Based on the Haskell and Agda Lexer.
|
||
|
|
"""
|
||
|
|
name = 'Idris'
|
||
|
|
url = 'https://www.idris-lang.org/'
|
||
|
|
aliases = ['idris', 'idr']
|
||
|
|
filenames = ['*.idr']
|
||
|
|
mimetypes = ['text/x-idris']
|
||
|
|
version_added = '2.0'
|
||
|
|
|
||
|
|
reserved = ('case', 'class', 'data', 'default', 'using', 'do', 'else',
|
||
|
|
'if', 'in', 'infix[lr]?', 'instance', 'rewrite', 'auto',
|
||
|
|
'namespace', 'codata', 'mutual', 'private', 'public', 'abstract',
|
||
|
|
'total', 'partial',
|
||
|
|
'interface', 'implementation', 'export', 'covering', 'constructor',
|
||
|
|
'let', 'proof', 'of', 'then', 'static', 'where', '_', 'with',
|
||
|
|
'pattern', 'term', 'syntax', 'prefix',
|
||
|
|
'postulate', 'parameters', 'record', 'dsl', 'impossible', 'implicit',
|
||
|
|
'tactics', 'intros', 'intro', 'compute', 'refine', 'exact', 'trivial')
|
||
|
|
|
||
|
|
ascii = ('NUL', 'SOH', '[SE]TX', 'EOT', 'ENQ', 'ACK',
|
||
|
|
'BEL', 'BS', 'HT', 'LF', 'VT', 'FF', 'CR', 'S[OI]', 'DLE',
|
||
|
|
'DC[1-4]', 'NAK', 'SYN', 'ETB', 'CAN',
|
||
|
|
'EM', 'SUB', 'ESC', '[FGRU]S', 'SP', 'DEL')
|
||
|
|
|
||
|
|
directives = ('lib', 'link', 'flag', 'include', 'hide', 'freeze', 'access',
|
||
|
|
'default', 'logging', 'dynamic', 'name', 'error_handlers', 'language')
|
||
|
|
|
||
|
|
tokens = {
|
||
|
|
'root': [
|
||
|
|
# Comments
|
||
|
|
(r'^(\s*)(%({}))'.format('|'.join(directives)),
|
||
|
|
bygroups(Whitespace, Keyword.Reserved)),
|
||
|
|
(r'(\s*)(--(?![!#$%&*+./<=>?@^|_~:\\]).*?)$', bygroups(Whitespace, Comment.Single)),
|
||
|
|
(r'(\s*)(\|{3}.*?)$', bygroups(Whitespace, Comment.Single)),
|
||
|
|
(r'(\s*)(\{-)', bygroups(Whitespace, Comment.Multiline), 'comment'),
|
||
|
|
# Declaration
|
||
|
|
(r'^(\s*)([^\s(){}]+)(\s*)(:)(\s*)',
|
||
|
|
bygroups(Whitespace, Name.Function, Whitespace, Operator.Word, Whitespace)),
|
||
|
|
# Identifiers
|
||
|
|
(r'\b({})(?!\')\b'.format('|'.join(reserved)), Keyword.Reserved),
|
||
|
|
(r'(import|module)(\s+)', bygroups(Keyword.Reserved, Whitespace), 'module'),
|
||
|
|
(r"('')?[A-Z][\w\']*", Keyword.Type),
|
||
|
|
(r'[a-z][\w\']*', Text),
|
||
|
|
# Special Symbols
|
||
|
|
(r'(<-|::|->|=>|=)', Operator.Word), # specials
|
||
|
|
(r'([(){}\[\]:!#$%&*+.\\/<=>?@^|~-]+)', Operator.Word), # specials
|
||
|
|
# Numbers
|
||
|
|
(r'\d+[eE][+-]?\d+', Number.Float),
|
||
|
|
(r'\d+\.\d+([eE][+-]?\d+)?', Number.Float),
|
||
|
|
(r'0[xX][\da-fA-F]+', Number.Hex),
|
||
|
|
(r'\d+', Number.Integer),
|
||
|
|
# Strings
|
||
|
|
(r"'", String.Char, 'character'),
|
||
|
|
(r'"', String, 'string'),
|
||
|
|
(r'[^\s(){}]+', Text),
|
||
|
|
(r'\s+?', Whitespace), # Whitespace
|
||
|
|
],
|
||
|
|
'module': [
|
||
|
|
(r'\s+', Whitespace),
|
||
|
|
(r'([A-Z][\w.]*)(\s+)(\()',
|
||
|
|
bygroups(Name.Namespace, Whitespace, Punctuation), 'funclist'),
|
||
|
|
(r'[A-Z][\w.]*', Name.Namespace, '#pop'),
|
||
|
|
],
|
||
|
|
'funclist': [
|
||
|
|
(r'\s+', Whitespace),
|
||
|
|
(r'[A-Z]\w*', Keyword.Type),
|
||
|
|
(r'(_[\w\']+|[a-z][\w\']*)', Name.Function),
|
||
|
|
(r'--.*$', Comment.Single),
|
||
|
|
(r'\{-', Comment.Multiline, 'comment'),
|
||
|
|
(r',', Punctuation),
|
||
|
|
(r'[:!#$%&*+.\\/<=>?@^|~-]+', Operator),
|
||
|
|
# (HACK, but it makes sense to push two instances, believe me)
|
||
|
|
(r'\(', Punctuation, ('funclist', 'funclist')),
|
||
|
|
(r'\)', Punctuation, '#pop:2'),
|
||
|
|
],
|
||
|
|
# NOTE: the next four states are shared in the AgdaLexer; make sure
|
||
|
|
# any change is compatible with Agda as well or copy over and change
|
||
|
|
'comment': [
|
||
|
|
# Multiline Comments
|
||
|
|
(r'[^-{}]+', Comment.Multiline),
|
||
|
|
(r'\{-', Comment.Multiline, '#push'),
|
||
|
|
(r'-\}', Comment.Multiline, '#pop'),
|
||
|
|
(r'[-{}]', Comment.Multiline),
|
||
|
|
],
|
||
|
|
'character': [
|
||
|
|
# Allows multi-chars, incorrectly.
|
||
|
|
(r"[^\\']", String.Char),
|
||
|
|
(r"\\", String.Escape, 'escape'),
|
||
|
|
("'", String.Char, '#pop'),
|
||
|
|
],
|
||
|
|
'string': [
|
||
|
|
(r'[^\\"]+', String),
|
||
|
|
(r"\\", String.Escape, 'escape'),
|
||
|
|
('"', String, '#pop'),
|
||
|
|
],
|
||
|
|
'escape': [
|
||
|
|
(r'[abfnrtv"\'&\\]', String.Escape, '#pop'),
|
||
|
|
(r'\^[][A-Z@^_]', String.Escape, '#pop'),
|
||
|
|
('|'.join(ascii), String.Escape, '#pop'),
|
||
|
|
(r'o[0-7]+', String.Escape, '#pop'),
|
||
|
|
(r'x[\da-fA-F]+', String.Escape, '#pop'),
|
||
|
|
(r'\d+', String.Escape, '#pop'),
|
||
|
|
(r'(\s+)(\\)', bygroups(Whitespace, String.Escape), '#pop')
|
||
|
|
],
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
class AgdaLexer(RegexLexer):
|
||
|
|
"""
|
||
|
|
For the Agda dependently typed functional programming language and
|
||
|
|
proof assistant.
|
||
|
|
"""
|
||
|
|
|
||
|
|
name = 'Agda'
|
||
|
|
url = 'http://wiki.portal.chalmers.se/agda/pmwiki.php'
|
||
|
|
aliases = ['agda']
|
||
|
|
filenames = ['*.agda']
|
||
|
|
mimetypes = ['text/x-agda']
|
||
|
|
version_added = '2.0'
|
||
|
|
|
||
|
|
reserved = (
|
||
|
|
'abstract', 'codata', 'coinductive', 'constructor', 'data', 'do',
|
||
|
|
'eta-equality', 'field', 'forall', 'hiding', 'in', 'inductive', 'infix',
|
||
|
|
'infixl', 'infixr', 'instance', 'interleaved', 'let', 'macro', 'mutual',
|
||
|
|
'no-eta-equality', 'open', 'overlap', 'pattern', 'postulate', 'primitive',
|
||
|
|
'private', 'quote', 'quoteTerm', 'record', 'renaming', 'rewrite',
|
||
|
|
'syntax', 'tactic', 'unquote', 'unquoteDecl', 'unquoteDef', 'using',
|
||
|
|
'variable', 'where', 'with',
|
||
|
|
)
|
||
|
|
|
||
|
|
tokens = {
|
||
|
|
'root': [
|
||
|
|
# Declaration
|
||
|
|
(r'^(\s*)([^\s(){}]+)(\s*)(:)(\s*)',
|
||
|
|
bygroups(Whitespace, Name.Function, Whitespace,
|
||
|
|
Operator.Word, Whitespace)),
|
||
|
|
# Comments
|
||
|
|
(r'--(?![!#$%&*+./<=>?@^|_~:\\]).*?$', Comment.Single),
|
||
|
|
(r'\{-', Comment.Multiline, 'comment'),
|
||
|
|
# Holes
|
||
|
|
(r'\{!', Comment.Directive, 'hole'),
|
||
|
|
# Lexemes:
|
||
|
|
# Identifiers
|
||
|
|
(r'\b({})(?!\')\b'.format('|'.join(reserved)), Keyword.Reserved),
|
||
|
|
(r'(import|module)(\s+)', bygroups(Keyword.Reserved, Whitespace),
|
||
|
|
'module'),
|
||
|
|
(r'\b(Set|Prop)[\u2080-\u2089]*\b', Keyword.Type),
|
||
|
|
# Special Symbols
|
||
|
|
(r'(\(|\)|\{|\})', Operator),
|
||
|
|
(r'(\.{1,3}|\||\u03BB|\u2200|\u2192|:|=|->)', Operator.Word),
|
||
|
|
# Numbers
|
||
|
|
(r'\d+[eE][+-]?\d+', Number.Float),
|
||
|
|
(r'\d+\.\d+([eE][+-]?\d+)?', Number.Float),
|
||
|
|
(r'0[xX][\da-fA-F]+', Number.Hex),
|
||
|
|
(r'\d+', Number.Integer),
|
||
|
|
# Strings
|
||
|
|
(r"'", String.Char, 'character'),
|
||
|
|
(r'"', String, 'string'),
|
||
|
|
(r'[^\s(){}]+', Text),
|
||
|
|
(r'\s+?', Whitespace), # Whitespace
|
||
|
|
],
|
||
|
|
'hole': [
|
||
|
|
# Holes
|
||
|
|
(r'[^!{}]+', Comment.Directive),
|
||
|
|
(r'\{!', Comment.Directive, '#push'),
|
||
|
|
(r'!\}', Comment.Directive, '#pop'),
|
||
|
|
(r'[!{}]', Comment.Directive),
|
||
|
|
],
|
||
|
|
'module': [
|
||
|
|
(r'\{-', Comment.Multiline, 'comment'),
|
||
|
|
(r'[a-zA-Z][\w.\']*', Name, '#pop'),
|
||
|
|
(r'[\W0-9_]+', Text)
|
||
|
|
],
|
||
|
|
'comment': HaskellLexer.tokens['comment'],
|
||
|
|
'character': HaskellLexer.tokens['character'],
|
||
|
|
'string': HaskellLexer.tokens['string'],
|
||
|
|
'escape': HaskellLexer.tokens['escape']
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
class CryptolLexer(RegexLexer):
|
||
|
|
"""
|
||
|
|
FIXME: A Cryptol2 lexer based on the lexemes defined in the Haskell 98 Report.
|
||
|
|
"""
|
||
|
|
name = 'Cryptol'
|
||
|
|
aliases = ['cryptol', 'cry']
|
||
|
|
filenames = ['*.cry']
|
||
|
|
mimetypes = ['text/x-cryptol']
|
||
|
|
url = 'https://www.cryptol.net'
|
||
|
|
version_added = '2.0'
|
||
|
|
|
||
|
|
reserved = ('Arith', 'Bit', 'Cmp', 'False', 'Inf', 'True', 'else',
|
||
|
|
'export', 'extern', 'fin', 'if', 'import', 'inf', 'lg2',
|
||
|
|
'max', 'min', 'module', 'newtype', 'pragma', 'property',
|
||
|
|
'then', 'type', 'where', 'width')
|
||
|
|
ascii = ('NUL', 'SOH', '[SE]TX', 'EOT', 'ENQ', 'ACK',
|
||
|
|
'BEL', 'BS', 'HT', 'LF', 'VT', 'FF', 'CR', 'S[OI]', 'DLE',
|
||
|
|
'DC[1-4]', 'NAK', 'SYN', 'ETB', 'CAN',
|
||
|
|
'EM', 'SUB', 'ESC', '[FGRU]S', 'SP', 'DEL')
|
||
|
|
|
||
|
|
tokens = {
|
||
|
|
'root': [
|
||
|
|
# Whitespace:
|
||
|
|
(r'\s+', Whitespace),
|
||
|
|
# (r'--\s*|.*$', Comment.Doc),
|
||
|
|
(r'//.*$', Comment.Single),
|
||
|
|
(r'/\*', Comment.Multiline, 'comment'),
|
||
|
|
# Lexemes:
|
||
|
|
# Identifiers
|
||
|
|
(r'\bimport\b', Keyword.Reserved, 'import'),
|
||
|
|
(r'\bmodule\b', Keyword.Reserved, 'module'),
|
||
|
|
(r'\berror\b', Name.Exception),
|
||
|
|
(r'\b({})(?!\')\b'.format('|'.join(reserved)), Keyword.Reserved),
|
||
|
|
(r'^[_a-z][\w\']*', Name.Function),
|
||
|
|
(r"'?[_a-z][\w']*", Name),
|
||
|
|
(r"('')?[A-Z][\w\']*", Keyword.Type),
|
||
|
|
# Operators
|
||
|
|
(r'\\(?![:!#$%&*+.\\/<=>?@^|~-]+)', Name.Function), # lambda operator
|
||
|
|
(r'(<-|::|->|=>|=)(?![:!#$%&*+.\\/<=>?@^|~-]+)', Operator.Word), # specials
|
||
|
|
(r':[:!#$%&*+.\\/<=>?@^|~-]*', Keyword.Type), # Constructor operators
|
||
|
|
(r'[:!#$%&*+.\\/<=>?@^|~-]+', Operator), # Other operators
|
||
|
|
# Numbers
|
||
|
|
(r'\d+[eE][+-]?\d+', Number.Float),
|
||
|
|
(r'\d+\.\d+([eE][+-]?\d+)?', Number.Float),
|
||
|
|
(r'0[oO][0-7]+', Number.Oct),
|
||
|
|
(r'0[xX][\da-fA-F]+', Number.Hex),
|
||
|
|
(r'\d+', Number.Integer),
|
||
|
|
# Character/String Literals
|
||
|
|
(r"'", String.Char, 'character'),
|
||
|
|
(r'"', String, 'string'),
|
||
|
|
# Special
|
||
|
|
(r'\[\]', Keyword.Type),
|
||
|
|
(r'\(\)', Name.Builtin),
|
||
|
|
(r'[][(),;`{}]', Punctuation),
|
||
|
|
],
|
||
|
|
'import': [
|
||
|
|
# Import statements
|
||
|
|
(r'\s+', Whitespace),
|
||
|
|
(r'"', String, 'string'),
|
||
|
|
# after "funclist" state
|
||
|
|
(r'\)', Punctuation, '#pop'),
|
||
|
|
(r'qualified\b', Keyword),
|
||
|
|
# import X as Y
|
||
|
|
(r'([A-Z][\w.]*)(\s+)(as)(\s+)([A-Z][\w.]*)',
|
||
|
|
bygroups(Name.Namespace, Whitespace, Keyword, Whitespace, Name), '#pop'),
|
||
|
|
# import X hiding (functions)
|
||
|
|
(r'([A-Z][\w.]*)(\s+)(hiding)(\s+)(\()',
|
||
|
|
bygroups(Name.Namespace, Whitespace, Keyword, Whitespace, Punctuation), 'funclist'),
|
||
|
|
# import X (functions)
|
||
|
|
(r'([A-Z][\w.]*)(\s+)(\()',
|
||
|
|
bygroups(Name.Namespace, Whitespace, Punctuation), 'funclist'),
|
||
|
|
# import X
|
||
|
|
(r'[\w.]+', Name.Namespace, '#pop'),
|
||
|
|
],
|
||
|
|
'module': [
|
||
|
|
(r'\s+', Whitespace),
|
||
|
|
(r'([A-Z][\w.]*)(\s+)(\()',
|
||
|
|
bygroups(Name.Namespace, Whitespace, Punctuation), 'funclist'),
|
||
|
|
(r'[A-Z][\w.]*', Name.Namespace, '#pop'),
|
||
|
|
],
|
||
|
|
'funclist': [
|
||
|
|
(r'\s+', Whitespace),
|
||
|
|
(r'[A-Z]\w*', Keyword.Type),
|
||
|
|
(r'(_[\w\']+|[a-z][\w\']*)', Name.Function),
|
||
|
|
# TODO: these don't match the comments in docs, remove.
|
||
|
|
# (r'--(?![!#$%&*+./<=>?@^|_~:\\]).*?$', Comment.Single),
|
||
|
|
# (r'{-', Comment.Multiline, 'comment'),
|
||
|
|
(r',', Punctuation),
|
||
|
|
(r'[:!#$%&*+.\\/<=>?@^|~-]+', Operator),
|
||
|
|
# (HACK, but it makes sense to push two instances, believe me)
|
||
|
|
(r'\(', Punctuation, ('funclist', 'funclist')),
|
||
|
|
(r'\)', Punctuation, '#pop:2'),
|
||
|
|
],
|
||
|
|
'comment': [
|
||
|
|
# Multiline Comments
|
||
|
|
(r'[^/*]+', Comment.Multiline),
|
||
|
|
(r'/\*', Comment.Multiline, '#push'),
|
||
|
|
(r'\*/', Comment.Multiline, '#pop'),
|
||
|
|
(r'[*/]', Comment.Multiline),
|
||
|
|
],
|
||
|
|
'character': [
|
||
|
|
# Allows multi-chars, incorrectly.
|
||
|
|
(r"[^\\']'", String.Char, '#pop'),
|
||
|
|
(r"\\", String.Escape, 'escape'),
|
||
|
|
("'", String.Char, '#pop'),
|
||
|
|
],
|
||
|
|
'string': [
|
||
|
|
(r'[^\\"]+', String),
|
||
|
|
(r"\\", String.Escape, 'escape'),
|
||
|
|
('"', String, '#pop'),
|
||
|
|
],
|
||
|
|
'escape': [
|
||
|
|
(r'[abfnrtv"\'&\\]', String.Escape, '#pop'),
|
||
|
|
(r'\^[][A-Z@^_]', String.Escape, '#pop'),
|
||
|
|
('|'.join(ascii), String.Escape, '#pop'),
|
||
|
|
(r'o[0-7]+', String.Escape, '#pop'),
|
||
|
|
(r'x[\da-fA-F]+', String.Escape, '#pop'),
|
||
|
|
(r'\d+', String.Escape, '#pop'),
|
||
|
|
(r'(\s+)(\\)', bygroups(Whitespace, String.Escape), '#pop'),
|
||
|
|
],
|
||
|
|
}
|
||
|
|
|
||
|
|
EXTRA_KEYWORDS = {'join', 'split', 'reverse', 'transpose', 'width',
|
||
|
|
'length', 'tail', '<<', '>>', '<<<', '>>>', 'const',
|
||
|
|
'reg', 'par', 'seq', 'ASSERT', 'undefined', 'error',
|
||
|
|
'trace'}
|
||
|
|
|
||
|
|
def get_tokens_unprocessed(self, text):
|
||
|
|
stack = ['root']
|
||
|
|
for index, token, value in \
|
||
|
|
RegexLexer.get_tokens_unprocessed(self, text, stack):
|
||
|
|
if token is Name and value in self.EXTRA_KEYWORDS:
|
||
|
|
yield index, Name.Builtin, value
|
||
|
|
else:
|
||
|
|
yield index, token, value
|
||
|
|
|
||
|
|
|
||
|
|
class LiterateLexer(Lexer):
|
||
|
|
"""
|
||
|
|
Base class for lexers of literate file formats based on LaTeX or Bird-style
|
||
|
|
(prefixing each code line with ">").
|
||
|
|
|
||
|
|
Additional options accepted:
|
||
|
|
|
||
|
|
`litstyle`
|
||
|
|
If given, must be ``"bird"`` or ``"latex"``. If not given, the style
|
||
|
|
is autodetected: if the first non-whitespace character in the source
|
||
|
|
is a backslash or percent character, LaTeX is assumed, else Bird.
|
||
|
|
"""
|
||
|
|
|
||
|
|
bird_re = re.compile(r'(>[ \t]*)(.*\n)')
|
||
|
|
|
||
|
|
def __init__(self, baselexer, **options):
|
||
|
|
self.baselexer = baselexer
|
||
|
|
Lexer.__init__(self, **options)
|
||
|
|
|
||
|
|
def get_tokens_unprocessed(self, text):
|
||
|
|
style = self.options.get('litstyle')
|
||
|
|
if style is None:
|
||
|
|
style = (text.lstrip()[0:1] in '%\\') and 'latex' or 'bird'
|
||
|
|
|
||
|
|
code = ''
|
||
|
|
insertions = []
|
||
|
|
if style == 'bird':
|
||
|
|
# bird-style
|
||
|
|
for match in line_re.finditer(text):
|
||
|
|
line = match.group()
|
||
|
|
m = self.bird_re.match(line)
|
||
|
|
if m:
|
||
|
|
insertions.append((len(code),
|
||
|
|
[(0, Comment.Special, m.group(1))]))
|
||
|
|
code += m.group(2)
|
||
|
|
else:
|
||
|
|
insertions.append((len(code), [(0, Text, line)]))
|
||
|
|
else:
|
||
|
|
# latex-style
|
||
|
|
from pygments.lexers.markup import TexLexer
|
||
|
|
lxlexer = TexLexer(**self.options)
|
||
|
|
codelines = 0
|
||
|
|
latex = ''
|
||
|
|
for match in line_re.finditer(text):
|
||
|
|
line = match.group()
|
||
|
|
if codelines:
|
||
|
|
if line.lstrip().startswith('\\end{code}'):
|
||
|
|
codelines = 0
|
||
|
|
latex += line
|
||
|
|
else:
|
||
|
|
code += line
|
||
|
|
elif line.lstrip().startswith('\\begin{code}'):
|
||
|
|
codelines = 1
|
||
|
|
latex += line
|
||
|
|
insertions.append((len(code),
|
||
|
|
list(lxlexer.get_tokens_unprocessed(latex))))
|
||
|
|
latex = ''
|
||
|
|
else:
|
||
|
|
latex += line
|
||
|
|
insertions.append((len(code),
|
||
|
|
list(lxlexer.get_tokens_unprocessed(latex))))
|
||
|
|
yield from do_insertions(insertions, self.baselexer.get_tokens_unprocessed(code))
|
||
|
|
|
||
|
|
|
||
|
|
class LiterateHaskellLexer(LiterateLexer):
|
||
|
|
"""
|
||
|
|
For Literate Haskell (Bird-style or LaTeX) source.
|
||
|
|
|
||
|
|
Additional options accepted:
|
||
|
|
|
||
|
|
`litstyle`
|
||
|
|
If given, must be ``"bird"`` or ``"latex"``. If not given, the style
|
||
|
|
is autodetected: if the first non-whitespace character in the source
|
||
|
|
is a backslash or percent character, LaTeX is assumed, else Bird.
|
||
|
|
"""
|
||
|
|
name = 'Literate Haskell'
|
||
|
|
aliases = ['literate-haskell', 'lhaskell', 'lhs']
|
||
|
|
filenames = ['*.lhs']
|
||
|
|
mimetypes = ['text/x-literate-haskell']
|
||
|
|
url = 'https://wiki.haskell.org/Literate_programming'
|
||
|
|
version_added = '0.9'
|
||
|
|
|
||
|
|
def __init__(self, **options):
|
||
|
|
hslexer = HaskellLexer(**options)
|
||
|
|
LiterateLexer.__init__(self, hslexer, **options)
|
||
|
|
|
||
|
|
|
||
|
|
class LiterateIdrisLexer(LiterateLexer):
|
||
|
|
"""
|
||
|
|
For Literate Idris (Bird-style or LaTeX) source.
|
||
|
|
|
||
|
|
Additional options accepted:
|
||
|
|
|
||
|
|
`litstyle`
|
||
|
|
If given, must be ``"bird"`` or ``"latex"``. If not given, the style
|
||
|
|
is autodetected: if the first non-whitespace character in the source
|
||
|
|
is a backslash or percent character, LaTeX is assumed, else Bird.
|
||
|
|
"""
|
||
|
|
name = 'Literate Idris'
|
||
|
|
aliases = ['literate-idris', 'lidris', 'lidr']
|
||
|
|
filenames = ['*.lidr']
|
||
|
|
mimetypes = ['text/x-literate-idris']
|
||
|
|
url = 'https://idris2.readthedocs.io/en/latest/reference/literate.html'
|
||
|
|
version_added = '2.0'
|
||
|
|
|
||
|
|
def __init__(self, **options):
|
||
|
|
hslexer = IdrisLexer(**options)
|
||
|
|
LiterateLexer.__init__(self, hslexer, **options)
|
||
|
|
|
||
|
|
|
||
|
|
class LiterateAgdaLexer(LiterateLexer):
|
||
|
|
"""
|
||
|
|
For Literate Agda source.
|
||
|
|
|
||
|
|
Additional options accepted:
|
||
|
|
|
||
|
|
`litstyle`
|
||
|
|
If given, must be ``"bird"`` or ``"latex"``. If not given, the style
|
||
|
|
is autodetected: if the first non-whitespace character in the source
|
||
|
|
is a backslash or percent character, LaTeX is assumed, else Bird.
|
||
|
|
"""
|
||
|
|
name = 'Literate Agda'
|
||
|
|
aliases = ['literate-agda', 'lagda']
|
||
|
|
filenames = ['*.lagda']
|
||
|
|
mimetypes = ['text/x-literate-agda']
|
||
|
|
url = 'https://agda.readthedocs.io/en/latest/tools/literate-programming.html'
|
||
|
|
version_added = '2.0'
|
||
|
|
|
||
|
|
def __init__(self, **options):
|
||
|
|
agdalexer = AgdaLexer(**options)
|
||
|
|
LiterateLexer.__init__(self, agdalexer, litstyle='latex', **options)
|
||
|
|
|
||
|
|
|
||
|
|
class LiterateCryptolLexer(LiterateLexer):
|
||
|
|
"""
|
||
|
|
For Literate Cryptol (Bird-style or LaTeX) source.
|
||
|
|
|
||
|
|
Additional options accepted:
|
||
|
|
|
||
|
|
`litstyle`
|
||
|
|
If given, must be ``"bird"`` or ``"latex"``. If not given, the style
|
||
|
|
is autodetected: if the first non-whitespace character in the source
|
||
|
|
is a backslash or percent character, LaTeX is assumed, else Bird.
|
||
|
|
"""
|
||
|
|
name = 'Literate Cryptol'
|
||
|
|
aliases = ['literate-cryptol', 'lcryptol', 'lcry']
|
||
|
|
filenames = ['*.lcry']
|
||
|
|
mimetypes = ['text/x-literate-cryptol']
|
||
|
|
url = 'https://www.cryptol.net'
|
||
|
|
version_added = '2.0'
|
||
|
|
|
||
|
|
def __init__(self, **options):
|
||
|
|
crylexer = CryptolLexer(**options)
|
||
|
|
LiterateLexer.__init__(self, crylexer, **options)
|
||
|
|
|
||
|
|
|
||
|
|
class KokaLexer(RegexLexer):
|
||
|
|
"""
|
||
|
|
Lexer for the Koka language.
|
||
|
|
"""
|
||
|
|
|
||
|
|
name = 'Koka'
|
||
|
|
url = 'https://koka-lang.github.io/koka/doc/index.html'
|
||
|
|
aliases = ['koka']
|
||
|
|
filenames = ['*.kk', '*.kki']
|
||
|
|
mimetypes = ['text/x-koka']
|
||
|
|
version_added = '1.6'
|
||
|
|
|
||
|
|
keywords = [
|
||
|
|
'infix', 'infixr', 'infixl',
|
||
|
|
'type', 'cotype', 'rectype', 'alias',
|
||
|
|
'struct', 'con',
|
||
|
|
'fun', 'function', 'val', 'var',
|
||
|
|
'external',
|
||
|
|
'if', 'then', 'else', 'elif', 'return', 'match',
|
||
|
|
'private', 'public', 'private',
|
||
|
|
'module', 'import', 'as',
|
||
|
|
'include', 'inline',
|
||
|
|
'rec',
|
||
|
|
'try', 'yield', 'enum',
|
||
|
|
'interface', 'instance',
|
||
|
|
]
|
||
|
|
|
||
|
|
# keywords that are followed by a type
|
||
|
|
typeStartKeywords = [
|
||
|
|
'type', 'cotype', 'rectype', 'alias', 'struct', 'enum',
|
||
|
|
]
|
||
|
|
|
||
|
|
# keywords valid in a type
|
||
|
|
typekeywords = [
|
||
|
|
'forall', 'exists', 'some', 'with',
|
||
|
|
]
|
||
|
|
|
||
|
|
# builtin names and special names
|
||
|
|
builtin = [
|
||
|
|
'for', 'while', 'repeat',
|
||
|
|
'foreach', 'foreach-indexed',
|
||
|
|
'error', 'catch', 'finally',
|
||
|
|
'cs', 'js', 'file', 'ref', 'assigned',
|
||
|
|
]
|
||
|
|
|
||
|
|
# symbols that can be in an operator
|
||
|
|
symbols = r'[$%&*+@!/\\^~=.:\-?|<>]+'
|
||
|
|
|
||
|
|
# symbol boundary: an operator keyword should not be followed by any of these
|
||
|
|
sboundary = '(?!' + symbols + ')'
|
||
|
|
|
||
|
|
# name boundary: a keyword should not be followed by any of these
|
||
|
|
boundary = r'(?![\w/])'
|
||
|
|
|
||
|
|
# koka token abstractions
|
||
|
|
tokenType = Name.Attribute
|
||
|
|
tokenTypeDef = Name.Class
|
||
|
|
tokenConstructor = Generic.Emph
|
||
|
|
|
||
|
|
# main lexer
|
||
|
|
tokens = {
|
||
|
|
'root': [
|
||
|
|
include('whitespace'),
|
||
|
|
|
||
|
|
# go into type mode
|
||
|
|
(r'::?' + sboundary, tokenType, 'type'),
|
||
|
|
(r'(alias)(\s+)([a-z]\w*)?', bygroups(Keyword, Whitespace, tokenTypeDef),
|
||
|
|
'alias-type'),
|
||
|
|
(r'(struct)(\s+)([a-z]\w*)?', bygroups(Keyword, Whitespace, tokenTypeDef),
|
||
|
|
'struct-type'),
|
||
|
|
((r'({})'.format('|'.join(typeStartKeywords))) +
|
||
|
|
r'(\s+)([a-z]\w*)?', bygroups(Keyword, Whitespace, tokenTypeDef),
|
||
|
|
'type'),
|
||
|
|
|
||
|
|
# special sequences of tokens (we use ?: for non-capturing group as
|
||
|
|
# required by 'bygroups')
|
||
|
|
(r'(module)(\s+)(interface(?=\s))?(\s+)?((?:[a-z]\w*/)*[a-z]\w*)',
|
||
|
|
bygroups(Keyword, Whitespace, Keyword, Whitespace, Name.Namespace)),
|
||
|
|
(r'(import)(\s+)((?:[a-z]\w*/)*[a-z]\w*)'
|
||
|
|
r'(?:(\s*)(=)(\s*)(qualified)?(\s*)'
|
||
|
|
r'((?:[a-z]\w*/)*[a-z]\w*))?',
|
||
|
|
bygroups(Keyword, Whitespace, Name.Namespace, Whitespace, Keyword, Whitespace,
|
||
|
|
Keyword, Whitespace, Name.Namespace)),
|
||
|
|
|
||
|
|
(r'^(public|private)?(\s+)?(function|fun|val)'
|
||
|
|
r'(\s+)([a-z]\w*|\((?:' + symbols + r'|/)\))',
|
||
|
|
bygroups(Keyword, Whitespace, Keyword, Whitespace, Name.Function)),
|
||
|
|
(r'^(?:(public|private)(?=\s+external))?((?<!^)\s+)?(external)(\s+)(inline(?=\s))?(\s+)?'
|
||
|
|
r'([a-z]\w*|\((?:' + symbols + r'|/)\))',
|
||
|
|
bygroups(Keyword, Whitespace, Keyword, Whitespace, Keyword, Whitespace, Name.Function)),
|
||
|
|
|
||
|
|
# keywords
|
||
|
|
(r'({})'.format('|'.join(typekeywords)) + boundary, Keyword.Type),
|
||
|
|
(r'({})'.format('|'.join(keywords)) + boundary, Keyword),
|
||
|
|
(r'({})'.format('|'.join(builtin)) + boundary, Keyword.Pseudo),
|
||
|
|
(r'::?|:=|\->|[=.]' + sboundary, Keyword),
|
||
|
|
|
||
|
|
# names
|
||
|
|
(r'((?:[a-z]\w*/)*)([A-Z]\w*)',
|
||
|
|
bygroups(Name.Namespace, tokenConstructor)),
|
||
|
|
(r'((?:[a-z]\w*/)*)([a-z]\w*)', bygroups(Name.Namespace, Name)),
|
||
|
|
(r'((?:[a-z]\w*/)*)(\((?:' + symbols + r'|/)\))',
|
||
|
|
bygroups(Name.Namespace, Name)),
|
||
|
|
(r'_\w*', Name.Variable),
|
||
|
|
|
||
|
|
# literal string
|
||
|
|
(r'@"', String.Double, 'litstring'),
|
||
|
|
|
||
|
|
# operators
|
||
|
|
(symbols + "|/(?![*/])", Operator),
|
||
|
|
(r'`', Operator),
|
||
|
|
(r'[{}()\[\];,]', Punctuation),
|
||
|
|
|
||
|
|
# literals. No check for literal characters with len > 1
|
||
|
|
(r'[0-9]+\.[0-9]+([eE][\-+]?[0-9]+)?', Number.Float),
|
||
|
|
(r'0[xX][0-9a-fA-F]+', Number.Hex),
|
||
|
|
(r'[0-9]+', Number.Integer),
|
||
|
|
|
||
|
|
(r"'", String.Char, 'char'),
|
||
|
|
(r'"', String.Double, 'string'),
|
||
|
|
],
|
||
|
|
|
||
|
|
# type started by alias
|
||
|
|
'alias-type': [
|
||
|
|
(r'=', Keyword),
|
||
|
|
include('type')
|
||
|
|
],
|
||
|
|
|
||
|
|
# type started by struct
|
||
|
|
'struct-type': [
|
||
|
|
(r'(?=\((?!,*\)))', Punctuation, '#pop'),
|
||
|
|
include('type')
|
||
|
|
],
|
||
|
|
|
||
|
|
# type started by colon
|
||
|
|
'type': [
|
||
|
|
(r'[(\[<]', tokenType, 'type-nested'),
|
||
|
|
include('type-content')
|
||
|
|
],
|
||
|
|
|
||
|
|
# type nested in brackets: can contain parameters, comma etc.
|
||
|
|
'type-nested': [
|
||
|
|
(r'[)\]>]', tokenType, '#pop'),
|
||
|
|
(r'[(\[<]', tokenType, 'type-nested'),
|
||
|
|
(r',', tokenType),
|
||
|
|
(r'([a-z]\w*)(\s*)(:)(?!:)',
|
||
|
|
bygroups(Name, Whitespace, tokenType)), # parameter name
|
||
|
|
include('type-content')
|
||
|
|
],
|
||
|
|
|
||
|
|
# shared contents of a type
|
||
|
|
'type-content': [
|
||
|
|
include('whitespace'),
|
||
|
|
|
||
|
|
# keywords
|
||
|
|
(r'({})'.format('|'.join(typekeywords)) + boundary, Keyword),
|
||
|
|
(r'(?=(({})'.format('|'.join(keywords)) + boundary + '))',
|
||
|
|
Keyword, '#pop'), # need to match because names overlap...
|
||
|
|
|
||
|
|
# kinds
|
||
|
|
(r'[EPHVX]' + boundary, tokenType),
|
||
|
|
|
||
|
|
# type names
|
||
|
|
(r'[a-z][0-9]*(?![\w/])', tokenType),
|
||
|
|
(r'_\w*', tokenType.Variable), # Generic.Emph
|
||
|
|
(r'((?:[a-z]\w*/)*)([A-Z]\w*)',
|
||
|
|
bygroups(Name.Namespace, tokenType)),
|
||
|
|
(r'((?:[a-z]\w*/)*)([a-z]\w+)',
|
||
|
|
bygroups(Name.Namespace, tokenType)),
|
||
|
|
|
||
|
|
# type keyword operators
|
||
|
|
(r'::|->|[.:|]', tokenType),
|
||
|
|
|
||
|
|
# catchall
|
||
|
|
default('#pop')
|
||
|
|
],
|
||
|
|
|
||
|
|
# comments and literals
|
||
|
|
'whitespace': [
|
||
|
|
(r'(\n\s*)(#.*)$', bygroups(Whitespace, Comment.Preproc)),
|
||
|
|
(r'\s+', Whitespace),
|
||
|
|
(r'/\*', Comment.Multiline, 'comment'),
|
||
|
|
(r'//.*$', Comment.Single)
|
||
|
|
],
|
||
|
|
'comment': [
|
||
|
|
(r'[^/*]+', Comment.Multiline),
|
||
|
|
(r'/\*', Comment.Multiline, '#push'),
|
||
|
|
(r'\*/', Comment.Multiline, '#pop'),
|
||
|
|
(r'[*/]', Comment.Multiline),
|
||
|
|
],
|
||
|
|
'litstring': [
|
||
|
|
(r'[^"]+', String.Double),
|
||
|
|
(r'""', String.Escape),
|
||
|
|
(r'"', String.Double, '#pop'),
|
||
|
|
],
|
||
|
|
'string': [
|
||
|
|
(r'[^\\"\n]+', String.Double),
|
||
|
|
include('escape-sequence'),
|
||
|
|
(r'["\n]', String.Double, '#pop'),
|
||
|
|
],
|
||
|
|
'char': [
|
||
|
|
(r'[^\\\'\n]+', String.Char),
|
||
|
|
include('escape-sequence'),
|
||
|
|
(r'[\'\n]', String.Char, '#pop'),
|
||
|
|
],
|
||
|
|
'escape-sequence': [
|
||
|
|
(r'\\[nrt\\"\']', String.Escape),
|
||
|
|
(r'\\x[0-9a-fA-F]{2}', String.Escape),
|
||
|
|
(r'\\u[0-9a-fA-F]{4}', String.Escape),
|
||
|
|
# Yes, \U literals are 6 hex digits.
|
||
|
|
(r'\\U[0-9a-fA-F]{6}', String.Escape)
|
||
|
|
]
|
||
|
|
}
|