25f230191f
That way, we can set it to "" for old lexers, and check that it's present on new lexers. (In the future, we might also use it for better presentation in the documentation.)
419 lines
18 KiB
Python
419 lines
18 KiB
Python
"""
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pygments.lexers.rebol
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~~~~~~~~~~~~~~~~~~~~~
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Lexers for the REBOL and related languages.
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:copyright: Copyright 2006-2023 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 RegexLexer, bygroups
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from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
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Number, Generic, Whitespace
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__all__ = ['RebolLexer', 'RedLexer']
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class RebolLexer(RegexLexer):
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"""
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A REBOL lexer.
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"""
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name = 'REBOL'
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aliases = ['rebol']
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filenames = ['*.r', '*.r3', '*.reb']
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mimetypes = ['text/x-rebol']
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url = 'http://www.rebol.com'
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version_added = '1.1'
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flags = re.IGNORECASE | re.MULTILINE
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escape_re = r'(?:\^\([0-9a-f]{1,4}\)*)'
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def word_callback(lexer, match):
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word = match.group()
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if re.match(".*:$", word):
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yield match.start(), Generic.Subheading, word
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elif re.match(
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r'(native|alias|all|any|as-string|as-binary|bind|bound\?|case|'
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r'catch|checksum|comment|debase|dehex|exclude|difference|disarm|'
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r'either|else|enbase|foreach|remove-each|form|free|get|get-env|if|'
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r'in|intersect|loop|minimum-of|maximum-of|mold|new-line|'
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r'new-line\?|not|now|prin|print|reduce|compose|construct|repeat|'
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r'reverse|save|script\?|set|shift|switch|throw|to-hex|trace|try|'
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r'type\?|union|unique|unless|unprotect|unset|until|use|value\?|'
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r'while|compress|decompress|secure|open|close|read|read-io|'
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r'write-io|write|update|query|wait|input\?|exp|log-10|log-2|'
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r'log-e|square-root|cosine|sine|tangent|arccosine|arcsine|'
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r'arctangent|protect|lowercase|uppercase|entab|detab|connected\?|'
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r'browse|launch|stats|get-modes|set-modes|to-local-file|'
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r'to-rebol-file|encloak|decloak|create-link|do-browser|bind\?|'
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r'hide|draw|show|size-text|textinfo|offset-to-caret|'
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r'caret-to-offset|local-request-file|rgb-to-hsv|hsv-to-rgb|'
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r'crypt-strength\?|dh-make-key|dh-generate-key|dh-compute-key|'
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r'dsa-make-key|dsa-generate-key|dsa-make-signature|'
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r'dsa-verify-signature|rsa-make-key|rsa-generate-key|'
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r'rsa-encrypt)$', word):
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yield match.start(), Name.Builtin, word
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elif re.match(
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r'(add|subtract|multiply|divide|remainder|power|and~|or~|xor~|'
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r'minimum|maximum|negate|complement|absolute|random|head|tail|'
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r'next|back|skip|at|pick|first|second|third|fourth|fifth|sixth|'
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r'seventh|eighth|ninth|tenth|last|path|find|select|make|to|copy\*|'
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r'insert|remove|change|poke|clear|trim|sort|min|max|abs|cp|'
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r'copy)$', word):
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yield match.start(), Name.Function, word
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elif re.match(
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r'(error|source|input|license|help|install|echo|Usage|with|func|'
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r'throw-on-error|function|does|has|context|probe|\?\?|as-pair|'
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r'mod|modulo|round|repend|about|set-net|append|join|rejoin|reform|'
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r'remold|charset|array|replace|move|extract|forskip|forall|alter|'
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r'first+|also|take|for|forever|dispatch|attempt|what-dir|'
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r'change-dir|clean-path|list-dir|dirize|rename|split-path|delete|'
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r'make-dir|delete-dir|in-dir|confirm|dump-obj|upgrade|what|'
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r'build-tag|process-source|build-markup|decode-cgi|read-cgi|'
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r'write-user|save-user|set-user-name|protect-system|parse-xml|'
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r'cvs-date|cvs-version|do-boot|get-net-info|desktop|layout|'
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r'scroll-para|get-face|alert|set-face|uninstall|unfocus|'
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r'request-dir|center-face|do-events|net-error|decode-url|'
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r'parse-header|parse-header-date|parse-email-addrs|import-email|'
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r'send|build-attach-body|resend|show-popup|hide-popup|open-events|'
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r'find-key-face|do-face|viewtop|confine|find-window|'
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r'insert-event-func|remove-event-func|inform|dump-pane|dump-face|'
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r'flag-face|deflag-face|clear-fields|read-net|vbug|path-thru|'
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r'read-thru|load-thru|do-thru|launch-thru|load-image|'
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r'request-download|do-face-alt|set-font|set-para|get-style|'
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r'set-style|make-face|stylize|choose|hilight-text|hilight-all|'
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r'unlight-text|focus|scroll-drag|clear-face|reset-face|scroll-face|'
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r'resize-face|load-stock|load-stock-block|notify|request|flash|'
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r'request-color|request-pass|request-text|request-list|'
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r'request-date|request-file|dbug|editor|link-relative-path|'
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r'emailer|parse-error)$', word):
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yield match.start(), Keyword.Namespace, word
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elif re.match(
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r'(halt|quit|do|load|q|recycle|call|run|ask|parse|view|unview|'
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r'return|exit|break)$', word):
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yield match.start(), Name.Exception, word
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elif re.match('REBOL$', word):
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yield match.start(), Generic.Heading, word
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elif re.match("to-.*", word):
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yield match.start(), Keyword, word
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elif re.match(r'(\+|-|\*|/|//|\*\*|and|or|xor|=\?|=|==|<>|<|>|<=|>=)$',
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word):
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yield match.start(), Operator, word
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elif re.match(r".*\?$", word):
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yield match.start(), Keyword, word
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elif re.match(r".*\!$", word):
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yield match.start(), Keyword.Type, word
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elif re.match("'.*", word):
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yield match.start(), Name.Variable.Instance, word # lit-word
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elif re.match("#.*", word):
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yield match.start(), Name.Label, word # issue
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elif re.match("%.*", word):
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yield match.start(), Name.Decorator, word # file
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else:
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yield match.start(), Name.Variable, word
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tokens = {
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'root': [
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(r'\s+', Text),
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(r'#"', String.Char, 'char'),
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(r'#\{[0-9a-f]*\}', Number.Hex),
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(r'2#\{', Number.Hex, 'bin2'),
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(r'64#\{[0-9a-z+/=\s]*\}', Number.Hex),
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(r'"', String, 'string'),
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(r'\{', String, 'string2'),
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(r';#+.*\n', Comment.Special),
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(r';\*+.*\n', Comment.Preproc),
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(r';.*\n', Comment),
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(r'%"', Name.Decorator, 'stringFile'),
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(r'%[^(^{")\s\[\]]+', Name.Decorator),
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(r'[+-]?([a-z]{1,3})?\$\d+(\.\d+)?', Number.Float), # money
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(r'[+-]?\d+\:\d+(\:\d+)?(\.\d+)?', String.Other), # time
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(r'\d+[\-/][0-9a-z]+[\-/]\d+(\/\d+\:\d+((\:\d+)?'
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r'([.\d+]?([+-]?\d+:\d+)?)?)?)?', String.Other), # date
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(r'\d+(\.\d+)+\.\d+', Keyword.Constant), # tuple
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(r'\d+X\d+', Keyword.Constant), # pair
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(r'[+-]?\d+(\'\d+)?([.,]\d*)?E[+-]?\d+', Number.Float),
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(r'[+-]?\d+(\'\d+)?[.,]\d*', Number.Float),
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(r'[+-]?\d+(\'\d+)?', Number),
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(r'[\[\]()]', Generic.Strong),
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(r'[a-z]+[^(^{"\s:)]*://[^(^{"\s)]*', Name.Decorator), # url
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(r'mailto:[^(^{"@\s)]+@[^(^{"@\s)]+', Name.Decorator), # url
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(r'[^(^{"@\s)]+@[^(^{"@\s)]+', Name.Decorator), # email
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(r'comment\s"', Comment, 'commentString1'),
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(r'comment\s\{', Comment, 'commentString2'),
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(r'comment\s\[', Comment, 'commentBlock'),
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(r'comment\s[^(\s{"\[]+', Comment),
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(r'/[^(^{")\s/[\]]*', Name.Attribute),
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(r'([^(^{")\s/[\]]+)(?=[:({"\s/\[\]])', word_callback),
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(r'<[\w:.-]*>', Name.Tag),
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(r'<[^(<>\s")]+', Name.Tag, 'tag'),
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(r'([^(^{")\s]+)', Text),
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],
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'string': [
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(r'[^(^")]+', String),
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(escape_re, String.Escape),
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(r'[(|)]+', String),
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(r'\^.', String.Escape),
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(r'"', String, '#pop'),
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],
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'string2': [
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(r'[^(^{})]+', String),
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(escape_re, String.Escape),
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(r'[(|)]+', String),
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(r'\^.', String.Escape),
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(r'\{', String, '#push'),
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(r'\}', String, '#pop'),
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],
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'stringFile': [
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(r'[^(^")]+', Name.Decorator),
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(escape_re, Name.Decorator),
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(r'\^.', Name.Decorator),
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(r'"', Name.Decorator, '#pop'),
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],
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'char': [
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(escape_re + '"', String.Char, '#pop'),
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(r'\^."', String.Char, '#pop'),
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(r'."', String.Char, '#pop'),
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],
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'tag': [
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(escape_re, Name.Tag),
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(r'"', Name.Tag, 'tagString'),
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(r'[^(<>\r\n")]+', Name.Tag),
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(r'>', Name.Tag, '#pop'),
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],
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'tagString': [
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(r'[^(^")]+', Name.Tag),
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(escape_re, Name.Tag),
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(r'[(|)]+', Name.Tag),
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(r'\^.', Name.Tag),
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(r'"', Name.Tag, '#pop'),
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],
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'tuple': [
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(r'(\d+\.)+', Keyword.Constant),
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(r'\d+', Keyword.Constant, '#pop'),
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],
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'bin2': [
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(r'\s+', Number.Hex),
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(r'([01]\s*){8}', Number.Hex),
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(r'\}', Number.Hex, '#pop'),
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],
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'commentString1': [
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(r'[^(^")]+', Comment),
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(escape_re, Comment),
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(r'[(|)]+', Comment),
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(r'\^.', Comment),
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(r'"', Comment, '#pop'),
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],
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'commentString2': [
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(r'[^(^{})]+', Comment),
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(escape_re, Comment),
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(r'[(|)]+', Comment),
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(r'\^.', Comment),
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(r'\{', Comment, '#push'),
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(r'\}', Comment, '#pop'),
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],
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'commentBlock': [
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(r'\[', Comment, '#push'),
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(r'\]', Comment, '#pop'),
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(r'"', Comment, "commentString1"),
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(r'\{', Comment, "commentString2"),
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(r'[^(\[\]"{)]+', Comment),
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],
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}
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def analyse_text(text):
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"""
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Check if code contains REBOL header and so it probably not R code
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"""
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if re.match(r'^\s*REBOL\s*\[', text, re.IGNORECASE):
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# The code starts with REBOL header
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return 1.0
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elif re.search(r'\s*REBOL\s*\[', text, re.IGNORECASE):
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# The code contains REBOL header but also some text before it
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return 0.5
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class RedLexer(RegexLexer):
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"""
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A Red-language lexer.
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"""
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name = 'Red'
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aliases = ['red', 'red/system']
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filenames = ['*.red', '*.reds']
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mimetypes = ['text/x-red', 'text/x-red-system']
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url = 'https://www.red-lang.org'
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version_added = '2.0'
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flags = re.IGNORECASE | re.MULTILINE
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escape_re = r'(?:\^\([0-9a-f]{1,4}\)*)'
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def word_callback(lexer, match):
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word = match.group()
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if re.match(".*:$", word):
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yield match.start(), Generic.Subheading, word
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elif re.match(r'(if|unless|either|any|all|while|until|loop|repeat|'
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r'foreach|forall|func|function|does|has|switch|'
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r'case|reduce|compose|get|set|print|prin|equal\?|'
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r'not-equal\?|strict-equal\?|lesser\?|greater\?|lesser-or-equal\?|'
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r'greater-or-equal\?|same\?|not|type\?|stats|'
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r'bind|union|replace|charset|routine)$', word):
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yield match.start(), Name.Builtin, word
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elif re.match(r'(make|random|reflect|to|form|mold|absolute|add|divide|multiply|negate|'
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r'power|remainder|round|subtract|even\?|odd\?|and~|complement|or~|xor~|'
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r'append|at|back|change|clear|copy|find|head|head\?|index\?|insert|'
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r'length\?|next|pick|poke|remove|reverse|select|sort|skip|swap|tail|tail\?|'
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r'take|trim|create|close|delete|modify|open|open\?|query|read|rename|'
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r'update|write)$', word):
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yield match.start(), Name.Function, word
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elif re.match(r'(yes|on|no|off|true|false|tab|cr|lf|newline|escape|slash|sp|space|null|'
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r'none|crlf|dot|null-byte)$', word):
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yield match.start(), Name.Builtin.Pseudo, word
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elif re.match(r'(#system-global|#include|#enum|#define|#either|#if|#import|#export|'
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r'#switch|#default|#get-definition)$', word):
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yield match.start(), Keyword.Namespace, word
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elif re.match(r'(system|halt|quit|quit-return|do|load|q|recycle|call|run|ask|parse|'
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r'raise-error|return|exit|break|alias|push|pop|probe|\?\?|spec-of|body-of|'
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r'quote|forever)$', word):
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yield match.start(), Name.Exception, word
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elif re.match(r'(action\?|block\?|char\?|datatype\?|file\?|function\?|get-path\?|zero\?|'
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r'get-word\?|integer\?|issue\?|lit-path\?|lit-word\?|logic\?|native\?|'
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r'op\?|paren\?|path\?|refinement\?|set-path\?|set-word\?|string\?|unset\?|'
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r'any-struct\?|none\?|word\?|any-series\?)$', word):
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yield match.start(), Keyword, word
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elif re.match(r'(JNICALL|stdcall|cdecl|infix)$', word):
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yield match.start(), Keyword.Namespace, word
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elif re.match("to-.*", word):
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yield match.start(), Keyword, word
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elif re.match(r'(\+|-\*\*|-|\*\*|//|/|\*|and|or|xor|=\?|===|==|=|<>|<=|>=|'
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r'<<<|>>>|<<|>>|<|>%)$', word):
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yield match.start(), Operator, word
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elif re.match(r".*\!$", word):
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yield match.start(), Keyword.Type, word
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elif re.match("'.*", word):
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yield match.start(), Name.Variable.Instance, word # lit-word
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elif re.match("#.*", word):
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yield match.start(), Name.Label, word # issue
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elif re.match("%.*", word):
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yield match.start(), Name.Decorator, word # file
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elif re.match(":.*", word):
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yield match.start(), Generic.Subheading, word # get-word
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else:
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yield match.start(), Name.Variable, word
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tokens = {
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'root': [
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(r'\s+', Text),
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(r'#"', String.Char, 'char'),
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(r'#\{[0-9a-f\s]*\}', Number.Hex),
|
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(r'2#\{', Number.Hex, 'bin2'),
|
|
(r'64#\{[0-9a-z+/=\s]*\}', Number.Hex),
|
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(r'([0-9a-f]+)(h)((\s)|(?=[\[\]{}"()]))',
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bygroups(Number.Hex, Name.Variable, Whitespace)),
|
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(r'"', String, 'string'),
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(r'\{', String, 'string2'),
|
|
(r';#+.*\n', Comment.Special),
|
|
(r';\*+.*\n', Comment.Preproc),
|
|
(r';.*\n', Comment),
|
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(r'%"', Name.Decorator, 'stringFile'),
|
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(r'%[^(^{")\s\[\]]+', Name.Decorator),
|
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(r'[+-]?([a-z]{1,3})?\$\d+(\.\d+)?', Number.Float), # money
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(r'[+-]?\d+\:\d+(\:\d+)?(\.\d+)?', String.Other), # time
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(r'\d+[\-/][0-9a-z]+[\-/]\d+(/\d+:\d+((:\d+)?'
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r'([\.\d+]?([+-]?\d+:\d+)?)?)?)?', String.Other), # date
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(r'\d+(\.\d+)+\.\d+', Keyword.Constant), # tuple
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(r'\d+X\d+', Keyword.Constant), # pair
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(r'[+-]?\d+(\'\d+)?([.,]\d*)?E[+-]?\d+', Number.Float),
|
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(r'[+-]?\d+(\'\d+)?[.,]\d*', Number.Float),
|
|
(r'[+-]?\d+(\'\d+)?', Number),
|
|
(r'[\[\]()]', Generic.Strong),
|
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(r'[a-z]+[^(^{"\s:)]*://[^(^{"\s)]*', Name.Decorator), # url
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|
(r'mailto:[^(^{"@\s)]+@[^(^{"@\s)]+', Name.Decorator), # url
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(r'[^(^{"@\s)]+@[^(^{"@\s)]+', Name.Decorator), # email
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(r'comment\s"', Comment, 'commentString1'),
|
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(r'comment\s\{', Comment, 'commentString2'),
|
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(r'comment\s\[', Comment, 'commentBlock'),
|
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(r'comment\s[^(\s{"\[]+', Comment),
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(r'/[^(^{^")\s/[\]]*', Name.Attribute),
|
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(r'([^(^{^")\s/[\]]+)(?=[:({"\s/\[\]])', word_callback),
|
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(r'<[\w:.-]*>', Name.Tag),
|
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(r'<[^(<>\s")]+', Name.Tag, 'tag'),
|
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(r'([^(^{")\s]+)', Text),
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],
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|
'string': [
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(r'[^(^")]+', String),
|
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(escape_re, String.Escape),
|
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(r'[(|)]+', String),
|
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(r'\^.', String.Escape),
|
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(r'"', String, '#pop'),
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],
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|
'string2': [
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(r'[^(^{})]+', String),
|
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(escape_re, String.Escape),
|
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(r'[(|)]+', String),
|
|
(r'\^.', String.Escape),
|
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(r'\{', String, '#push'),
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(r'\}', String, '#pop'),
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],
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|
'stringFile': [
|
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(r'[^(^")]+', Name.Decorator),
|
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(escape_re, Name.Decorator),
|
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(r'\^.', Name.Decorator),
|
|
(r'"', Name.Decorator, '#pop'),
|
|
],
|
|
'char': [
|
|
(escape_re + '"', String.Char, '#pop'),
|
|
(r'\^."', String.Char, '#pop'),
|
|
(r'."', String.Char, '#pop'),
|
|
],
|
|
'tag': [
|
|
(escape_re, Name.Tag),
|
|
(r'"', Name.Tag, 'tagString'),
|
|
(r'[^(<>\r\n")]+', Name.Tag),
|
|
(r'>', Name.Tag, '#pop'),
|
|
],
|
|
'tagString': [
|
|
(r'[^(^")]+', Name.Tag),
|
|
(escape_re, Name.Tag),
|
|
(r'[(|)]+', Name.Tag),
|
|
(r'\^.', Name.Tag),
|
|
(r'"', Name.Tag, '#pop'),
|
|
],
|
|
'tuple': [
|
|
(r'(\d+\.)+', Keyword.Constant),
|
|
(r'\d+', Keyword.Constant, '#pop'),
|
|
],
|
|
'bin2': [
|
|
(r'\s+', Number.Hex),
|
|
(r'([01]\s*){8}', Number.Hex),
|
|
(r'\}', Number.Hex, '#pop'),
|
|
],
|
|
'commentString1': [
|
|
(r'[^(^")]+', Comment),
|
|
(escape_re, Comment),
|
|
(r'[(|)]+', Comment),
|
|
(r'\^.', Comment),
|
|
(r'"', Comment, '#pop'),
|
|
],
|
|
'commentString2': [
|
|
(r'[^(^{})]+', Comment),
|
|
(escape_re, Comment),
|
|
(r'[(|)]+', Comment),
|
|
(r'\^.', Comment),
|
|
(r'\{', Comment, '#push'),
|
|
(r'\}', Comment, '#pop'),
|
|
],
|
|
'commentBlock': [
|
|
(r'\[', Comment, '#push'),
|
|
(r'\]', Comment, '#pop'),
|
|
(r'"', Comment, "commentString1"),
|
|
(r'\{', Comment, "commentString2"),
|
|
(r'[^(\[\]"{)]+', Comment),
|
|
],
|
|
}
|