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Diffstat (limited to 'pygments/lexers/dylan.py')
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diff --git a/pygments/lexers/dylan.py b/pygments/lexers/dylan.py new file mode 100644 index 00000000..b4f2a976 --- /dev/null +++ b/pygments/lexers/dylan.py @@ -0,0 +1,289 @@ +# -*- coding: utf-8 -*- +""" + pygments.lexers.dylan + ~~~~~~~~~~~~~~~~~~~~~ + + Lexers for the Dylan language. + + :copyright: Copyright 2006-2014 by the Pygments team, see AUTHORS. + :license: BSD, see LICENSE for details. +""" + +import re + +from pygments.lexer import Lexer, RegexLexer, bygroups, do_insertions +from pygments.token import Text, Comment, Operator, Keyword, Name, String, \ + Number, Punctuation, Generic, Literal + +__all__ = ['DylanLexer', 'DylanConsoleLexer', 'DylanLidLexer'] + + +class DylanLexer(RegexLexer): + """ + For the `Dylan <http://www.opendylan.org/>`_ language. + + .. versionadded:: 0.7 + """ + + name = 'Dylan' + aliases = ['dylan'] + filenames = ['*.dylan', '*.dyl', '*.intr'] + mimetypes = ['text/x-dylan'] + + flags = re.IGNORECASE + + builtins = set(( + 'subclass', 'abstract', 'block', 'concrete', 'constant', 'class', + 'compiler-open', 'compiler-sideways', 'domain', 'dynamic', + 'each-subclass', 'exception', 'exclude', 'function', 'generic', + 'handler', 'inherited', 'inline', 'inline-only', 'instance', + 'interface', 'import', 'keyword', 'library', 'macro', 'method', + 'module', 'open', 'primary', 'required', 'sealed', 'sideways', + 'singleton', 'slot', 'thread', 'variable', 'virtual')) + + keywords = set(( + 'above', 'afterwards', 'begin', 'below', 'by', 'case', 'cleanup', + 'create', 'define', 'else', 'elseif', 'end', 'export', 'finally', + 'for', 'from', 'if', 'in', 'let', 'local', 'otherwise', 'rename', + 'select', 'signal', 'then', 'to', 'unless', 'until', 'use', 'when', + 'while')) + + operators = set(( + '~', '+', '-', '*', '|', '^', '=', '==', '~=', '~==', '<', '<=', + '>', '>=', '&', '|')) + + functions = set(( + 'abort', 'abs', 'add', 'add!', 'add-method', 'add-new', 'add-new!', + 'all-superclasses', 'always', 'any?', 'applicable-method?', 'apply', + 'aref', 'aref-setter', 'as', 'as-lowercase', 'as-lowercase!', + 'as-uppercase', 'as-uppercase!', 'ash', 'backward-iteration-protocol', + 'break', 'ceiling', 'ceiling/', 'cerror', 'check-type', 'choose', + 'choose-by', 'complement', 'compose', 'concatenate', 'concatenate-as', + 'condition-format-arguments', 'condition-format-string', 'conjoin', + 'copy-sequence', 'curry', 'default-handler', 'dimension', 'dimensions', + 'direct-subclasses', 'direct-superclasses', 'disjoin', 'do', + 'do-handlers', 'element', 'element-setter', 'empty?', 'error', 'even?', + 'every?', 'false-or', 'fill!', 'find-key', 'find-method', 'first', + 'first-setter', 'floor', 'floor/', 'forward-iteration-protocol', + 'function-arguments', 'function-return-values', + 'function-specializers', 'gcd', 'generic-function-mandatory-keywords', + 'generic-function-methods', 'head', 'head-setter', 'identity', + 'initialize', 'instance?', 'integral?', 'intersection', + 'key-sequence', 'key-test', 'last', 'last-setter', 'lcm', 'limited', + 'list', 'logand', 'logbit?', 'logior', 'lognot', 'logxor', 'make', + 'map', 'map-as', 'map-into', 'max', 'member?', 'merge-hash-codes', + 'min', 'modulo', 'negative', 'negative?', 'next-method', + 'object-class', 'object-hash', 'odd?', 'one-of', 'pair', 'pop', + 'pop-last', 'positive?', 'push', 'push-last', 'range', 'rank', + 'rcurry', 'reduce', 'reduce1', 'remainder', 'remove', 'remove!', + 'remove-duplicates', 'remove-duplicates!', 'remove-key!', + 'remove-method', 'replace-elements!', 'replace-subsequence!', + 'restart-query', 'return-allowed?', 'return-description', + 'return-query', 'reverse', 'reverse!', 'round', 'round/', + 'row-major-index', 'second', 'second-setter', 'shallow-copy', + 'signal', 'singleton', 'size', 'size-setter', 'slot-initialized?', + 'sort', 'sort!', 'sorted-applicable-methods', 'subsequence-position', + 'subtype?', 'table-protocol', 'tail', 'tail-setter', 'third', + 'third-setter', 'truncate', 'truncate/', 'type-error-expected-type', + 'type-error-value', 'type-for-copy', 'type-union', 'union', 'values', + 'vector', 'zero?')) + + valid_name = '\\\\?[a-z0-9' + re.escape('!&*<>|^$%@_-+~?/=') + ']+' + + def get_tokens_unprocessed(self, text): + for index, token, value in RegexLexer.get_tokens_unprocessed(self, text): + if token is Name: + lowercase_value = value.lower() + if lowercase_value in self.builtins: + yield index, Name.Builtin, value + continue + if lowercase_value in self.keywords: + yield index, Keyword, value + continue + if lowercase_value in self.functions: + yield index, Name.Builtin, value + continue + if lowercase_value in self.operators: + yield index, Operator, value + continue + yield index, token, value + + tokens = { + 'root': [ + # Whitespace + (r'\s+', Text), + + # single line comment + (r'//.*?\n', Comment.Single), + + # lid header + (r'([a-z0-9-]+)(:)([ \t]*)(.*(?:\n[ \t].+)*)', + bygroups(Name.Attribute, Operator, Text, String)), + + ('', Text, 'code') # no header match, switch to code + ], + 'code': [ + # Whitespace + (r'\s+', Text), + + # single line comment + (r'//.*?\n', Comment.Single), + + # multi-line comment + (r'/\*', Comment.Multiline, 'comment'), + + # strings and characters + (r'"', String, 'string'), + (r"'(\\.|\\[0-7]{1,3}|\\x[a-f0-9]{1,2}|[^\\\'\n])'", String.Char), + + # binary integer + (r'#[bB][01]+', Number.Bin), + + # octal integer + (r'#[oO][0-7]+', Number.Oct), + + # floating point + (r'[-+]?(\d*\.\d+(e[-+]?\d+)?|\d+(\.\d*)?e[-+]?\d+)', Number.Float), + + # decimal integer + (r'[-+]?\d+', Number.Integer), + + # hex integer + (r'#[xX][0-9a-f]+', Number.Hex), + + # Macro parameters + (r'(\?' + valid_name + ')(:)' + r'(token|name|variable|expression|body|case-body|\*)', + bygroups(Name.Tag, Operator, Name.Builtin)), + (r'(\?)(:)(token|name|variable|expression|body|case-body|\*)', + bygroups(Name.Tag, Operator, Name.Builtin)), + (r'\?' + valid_name, Name.Tag), + + # Punctuation + (r'(=>|::|#\(|#\[|##|\?\?|\?=|\?|[(){}\[\],\.;])', Punctuation), + + # Most operators are picked up as names and then re-flagged. + # This one isn't valid in a name though, so we pick it up now. + (r':=', Operator), + + # Pick up #t / #f before we match other stuff with #. + (r'#[tf]', Literal), + + # #"foo" style keywords + (r'#"', String.Symbol, 'keyword'), + + # #rest, #key, #all-keys, etc. + (r'#[a-z0-9-]+', Keyword), + + # required-init-keyword: style keywords. + (valid_name + ':', Keyword), + + # class names + (r'<' + valid_name + '>', Name.Class), + + # define variable forms. + (r'\*' + valid_name + '\*', Name.Variable.Global), + + # define constant forms. + (r'\$' + valid_name, Name.Constant), + + # everything else. We re-flag some of these in the method above. + (valid_name, Name), + ], + 'comment': [ + (r'[^*/]', Comment.Multiline), + (r'/\*', Comment.Multiline, '#push'), + (r'\*/', Comment.Multiline, '#pop'), + (r'[*/]', Comment.Multiline) + ], + 'keyword': [ + (r'"', String.Symbol, '#pop'), + (r'[^\\"]+', String.Symbol), # all other characters + ], + 'string': [ + (r'"', String, '#pop'), + (r'\\([\\abfnrtv"\']|x[a-f0-9]{2,4}|[0-7]{1,3})', String.Escape), + (r'[^\\"\n]+', String), # all other characters + (r'\\\n', String), # line continuation + (r'\\', String), # stray backslash + ] + } + + +class DylanLidLexer(RegexLexer): + """ + For Dylan LID (Library Interchange Definition) files. + + .. versionadded:: 1.6 + """ + + name = 'DylanLID' + aliases = ['dylan-lid', 'lid'] + filenames = ['*.lid', '*.hdp'] + mimetypes = ['text/x-dylan-lid'] + + flags = re.IGNORECASE + + tokens = { + 'root': [ + # Whitespace + (r'\s+', Text), + + # single line comment + (r'//.*?\n', Comment.Single), + + # lid header + (r'(.*?)(:)([ \t]*)(.*(?:\n[ \t].+)*)', + bygroups(Name.Attribute, Operator, Text, String)), + ] + } + + +class DylanConsoleLexer(Lexer): + """ + For Dylan interactive console output like: + + .. sourcecode:: dylan-console + + ? let a = 1; + => 1 + ? a + => 1 + + This is based on a copy of the RubyConsoleLexer. + + .. versionadded:: 1.6 + """ + name = 'Dylan session' + aliases = ['dylan-console', 'dylan-repl'] + filenames = ['*.dylan-console'] + mimetypes = ['text/x-dylan-console'] + + _line_re = re.compile('.*?\n') + _prompt_re = re.compile('\?| ') + + def get_tokens_unprocessed(self, text): + dylexer = DylanLexer(**self.options) + + curcode = '' + insertions = [] + for match in self._line_re.finditer(text): + line = match.group() + m = self._prompt_re.match(line) + if m is not None: + end = m.end() + insertions.append((len(curcode), + [(0, Generic.Prompt, line[:end])])) + curcode += line[end:] + else: + if curcode: + for item in do_insertions(insertions, + dylexer.get_tokens_unprocessed(curcode)): + yield item + curcode = '' + insertions = [] + yield match.start(), Generic.Output, line + if curcode: + for item in do_insertions(insertions, + dylexer.get_tokens_unprocessed(curcode)): + yield item |