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"""
pygments.lexers.smalltalk
~~~~~~~~~~~~~~~~~~~~~~~~~
Lexers for Smalltalk and related languages.
:copyright: Copyright 2006-2021 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
from pygments.lexer import RegexLexer, include, bygroups, default
from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
Number, Punctuation
__all__ = ['SmalltalkLexer', 'NewspeakLexer']
class SmalltalkLexer(RegexLexer):
"""
For `Smalltalk <http://www.smalltalk.org/>`_ syntax.
Contributed by Stefan Matthias Aust.
Rewritten by Nils Winter.
.. versionadded:: 0.10
"""
name = 'Smalltalk'
filenames = ['*.st']
aliases = ['smalltalk', 'squeak', 'st']
mimetypes = ['text/x-smalltalk']
tokens = {
'root': [
(r'(<)(\w+:)(.*?)(>)', bygroups(Text, Keyword, Text, Text)),
include('squeak fileout'),
include('whitespaces'),
include('method definition'),
(r'(\|)([\w\s]*)(\|)', bygroups(Operator, Name.Variable, Operator)),
include('objects'),
(r'\^|\:=|\_', Operator),
# temporaries
(r'[\]({}.;!]', Text),
],
'method definition': [
# Not perfect can't allow whitespaces at the beginning and the
# without breaking everything
(r'([a-zA-Z]+\w*:)(\s*)(\w+)',
bygroups(Name.Function, Text, Name.Variable)),
(r'^(\b[a-zA-Z]+\w*\b)(\s*)$', bygroups(Name.Function, Text)),
(r'^([-+*/\\~<>=|&!?,@%]+)(\s*)(\w+)(\s*)$',
bygroups(Name.Function, Text, Name.Variable, Text)),
],
'blockvariables': [
include('whitespaces'),
(r'(:)(\s*)(\w+)',
bygroups(Operator, Text, Name.Variable)),
(r'\|', Operator, '#pop'),
default('#pop'), # else pop
],
'literals': [
(r"'(''|[^'])*'", String, 'afterobject'),
(r'\$.', String.Char, 'afterobject'),
(r'#\(', String.Symbol, 'parenth'),
(r'\)', Text, 'afterobject'),
(r'(\d+r)?-?\d+(\.\d+)?(e-?\d+)?', Number, 'afterobject'),
],
'_parenth_helper': [
include('whitespaces'),
(r'(\d+r)?-?\d+(\.\d+)?(e-?\d+)?', Number),
(r'[-+*/\\~<>=|&#!?,@%\w:]+', String.Symbol),
# literals
(r"'(''|[^'])*'", String),
(r'\$.', String.Char),
(r'#*\(', String.Symbol, 'inner_parenth'),
],
'parenth': [
# This state is a bit tricky since
# we can't just pop this state
(r'\)', String.Symbol, ('root', 'afterobject')),
include('_parenth_helper'),
],
'inner_parenth': [
(r'\)', String.Symbol, '#pop'),
include('_parenth_helper'),
],
'whitespaces': [
# skip whitespace and comments
(r'\s+', Text),
(r'"(""|[^"])*"', Comment),
],
'objects': [
(r'\[', Text, 'blockvariables'),
(r'\]', Text, 'afterobject'),
(r'\b(self|super|true|false|nil|thisContext)\b',
Name.Builtin.Pseudo, 'afterobject'),
(r'\b[A-Z]\w*(?!:)\b', Name.Class, 'afterobject'),
(r'\b[a-z]\w*(?!:)\b', Name.Variable, 'afterobject'),
(r'#("(""|[^"])*"|[-+*/\\~<>=|&!?,@%]+|[\w:]+)',
String.Symbol, 'afterobject'),
include('literals'),
],
'afterobject': [
(r'! !$', Keyword, '#pop'), # squeak chunk delimiter
include('whitespaces'),
(r'\b(ifTrue:|ifFalse:|whileTrue:|whileFalse:|timesRepeat:)',
Name.Builtin, '#pop'),
(r'\b(new\b(?!:))', Name.Builtin),
(r'\:=|\_', Operator, '#pop'),
(r'\b[a-zA-Z]+\w*:', Name.Function, '#pop'),
(r'\b[a-zA-Z]+\w*', Name.Function),
(r'\w+:?|[-+*/\\~<>=|&!?,@%]+', Name.Function, '#pop'),
(r'\.', Punctuation, '#pop'),
(r';', Punctuation),
(r'[\])}]', Text),
(r'[\[({]', Text, '#pop'),
],
'squeak fileout': [
# Squeak fileout format (optional)
(r'^"(""|[^"])*"!', Keyword),
(r"^'(''|[^'])*'!", Keyword),
(r'^(!)(\w+)( commentStamp: )(.*?)( prior: .*?!\n)(.*?)(!)',
bygroups(Keyword, Name.Class, Keyword, String, Keyword, Text, Keyword)),
(r"^(!)(\w+(?: class)?)( methodsFor: )('(?:''|[^'])*')(.*?!)",
bygroups(Keyword, Name.Class, Keyword, String, Keyword)),
(r'^(\w+)( subclass: )(#\w+)'
r'(\s+instanceVariableNames: )(.*?)'
r'(\s+classVariableNames: )(.*?)'
r'(\s+poolDictionaries: )(.*?)'
r'(\s+category: )(.*?)(!)',
bygroups(Name.Class, Keyword, String.Symbol, Keyword, String, Keyword,
String, Keyword, String, Keyword, String, Keyword)),
(r'^(\w+(?: class)?)(\s+instanceVariableNames: )(.*?)(!)',
bygroups(Name.Class, Keyword, String, Keyword)),
(r'(!\n)(\].*)(! !)$', bygroups(Keyword, Text, Keyword)),
(r'! !$', Keyword),
],
}
class NewspeakLexer(RegexLexer):
"""
For `Newspeak <http://newspeaklanguage.org/>`_ syntax.
.. versionadded:: 1.1
"""
name = 'Newspeak'
filenames = ['*.ns2']
aliases = ['newspeak', ]
mimetypes = ['text/x-newspeak']
tokens = {
'root': [
(r'\b(Newsqueak2)\b', Keyword.Declaration),
(r"'[^']*'", String),
(r'\b(class)(\s+)(\w+)(\s*)',
bygroups(Keyword.Declaration, Text, Name.Class, Text)),
(r'\b(mixin|self|super|private|public|protected|nil|true|false)\b',
Keyword),
(r'(\w+\:)(\s*)([a-zA-Z_]\w+)',
bygroups(Name.Function, Text, Name.Variable)),
(r'(\w+)(\s*)(=)',
bygroups(Name.Attribute, Text, Operator)),
(r'<\w+>', Comment.Special),
include('expressionstat'),
include('whitespace')
],
'expressionstat': [
(r'(\d+\.\d*|\.\d+|\d+[fF])[fF]?', Number.Float),
(r'\d+', Number.Integer),
(r':\w+', Name.Variable),
(r'(\w+)(::)', bygroups(Name.Variable, Operator)),
(r'\w+:', Name.Function),
(r'\w+', Name.Variable),
(r'\(|\)', Punctuation),
(r'\[|\]', Punctuation),
(r'\{|\}', Punctuation),
(r'(\^|\+|\/|~|\*|<|>|=|@|%|\||&|\?|!|,|-|:)', Operator),
(r'\.|;', Punctuation),
include('whitespace'),
include('literals'),
],
'literals': [
(r'\$.', String),
(r"'[^']*'", String),
(r"#'[^']*'", String.Symbol),
(r"#\w+:?", String.Symbol),
(r"#(\+|\/|~|\*|<|>|=|@|%|\||&|\?|!|,|-)+", String.Symbol)
],
'whitespace': [
(r'\s+', Text),
(r'"[^"]*"', Comment)
],
}
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