"""
pygments.lexers.dylan
~~~~~~~~~~~~~~~~~~~~~
Lexers for the Dylan language.
:copyright: Copyright 2006-2023 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import re
from pygments.lexer import Lexer, RegexLexer, bygroups, do_insertions, \
default, line_re
from pygments.token import Comment, Operator, Keyword, Name, String, \
Number, Punctuation, Generic, Literal, Whitespace
__all__ = ['DylanLexer', 'DylanConsoleLexer', 'DylanLidLexer']
class DylanLexer(RegexLexer):
"""
For the Dylan language.
.. versionadded:: 0.7
"""
name = 'Dylan'
url = 'http://www.opendylan.org/'
aliases = ['dylan']
filenames = ['*.dylan', '*.dyl', '*.intr']
mimetypes = ['text/x-dylan']
flags = re.IGNORECASE
builtins = {
'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 = {
'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 = {
'~', '+', '-', '*', '|', '^', '=', '==', '~=', '~==', '<', '<=',
'>', '>=', '&', '|'}
functions = {
'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 = '\\\\?[\\w!&*<>|^$%@\\-+~?/=]+'
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+', Whitespace),
# single line comment
(r'//.*?\n', Comment.Single),
# lid header
(r'([a-z0-9-]+)(:)([ \t]*)(.*(?:\n[ \t].+)*)',
bygroups(Name.Attribute, Operator, Whitespace, String)),
default('code') # no header match, switch to code
],
'code': [
# Whitespace
(r'\s+', Whitespace),
# single line comment
(r'(//.*?)(\n)', bygroups(Comment.Single, Whitespace)),
# 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'#b[01]+', Number.Bin),
# octal integer
(r'#o[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'#x[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
('<' + valid_name + '>', Name.Class),
# define variable forms.
(r'\*' + valid_name + r'\*', 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+', Whitespace),
# single line comment
(r'(//.*?)(\n)', bygroups(Comment.Single, Whitespace)),
# lid header
(r'(.*?)(:)([ \t]*)(.*(?:\n[ \t].+)*)',
bygroups(Name.Attribute, Operator, Whitespace, 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']
_prompt_re = re.compile(r'\?| ')
def get_tokens_unprocessed(self, text):
dylexer = DylanLexer(**self.options)
curcode = ''
insertions = []
for match in 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:
yield from do_insertions(insertions,
dylexer.get_tokens_unprocessed(curcode))
curcode = ''
insertions = []
yield match.start(), Generic.Output, line
if curcode:
yield from do_insertions(insertions,
dylexer.get_tokens_unprocessed(curcode))
