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"""
pygments.lexers.vip
~~~~~~~~~~~~~~~~~~~
Lexers for Visual Prolog & Grammar files.
:copyright: Copyright 2006-2023 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import re
from pygments.lexer import RegexLexer, inherit, words, include
from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
Number, Punctuation, Whitespace
__all__ = ['VisualPrologLexer', 'VisualPrologGrammarLexer']
class VisualPrologBaseLexer(RegexLexer):
minorendkw = ('try', 'foreach', 'if')
minorkwexp = ('and', 'catch', 'do', 'else', 'elseif', 'erroneous', 'externally', 'failure', 'finally', 'foreach', 'if', 'or', 'orelse', 'otherwise', 'then',
'try', 'div', 'mod', 'rem', 'quot')
dockw = ('short', 'detail', 'end', 'withdomain')
tokens = {
'root': [
(r'\s+', Whitespace),
(words(minorendkw, prefix=r'\bend\s+', suffix=r'\b'), Keyword.Minor),
(r'end', Keyword),
(words(minorkwexp, suffix=r'\b'), Keyword.Minor),
(r'0[xo][\da-fA-F_]+', Number),
(r'((\d[\d_]*)?\.)?\d[\d_]*([eE][\-+]?\d+)?', Number),
(r'_\w*', Name.Variable.Anonymous),
(r'[A-Z]\w*', Name.Variable),
(r'@\w+', Name.Variable),
(r'[a-z]\w*', Name),
(r'/\*', Comment, 'comment'),
(r'\%', Comment, 'commentline'),
(r'"', String.Symbol, 'string'),
(r'\'', String.Symbol, 'stringsingle'),
(r'@"', String.Symbol, 'atstring'),
(r'[\-+*^/!?<>=~:]+', Operator),
(r'[$,.[\]|(){}\\]+', Punctuation),
(r'.', Text),
],
'commentdoc': [
(words(dockw, prefix=r'@', suffix=r'\b'), Comment.Preproc),
(r'@', Comment),
],
'commentline': [
include('commentdoc'),
(r'[^@\n]+', Comment),
(r'$', Comment, '#pop'),
],
'comment': [
include('commentdoc'),
(r'[^@*/]+', Comment),
(r'/\*', Comment, '#push'),
(r'\*/', Comment, '#pop'),
(r'[*/]', Comment),
],
'stringescape': [
(r'\\u[0-9a-fA-F]{4}', String.Escape),
(r'\\[\'"ntr\\]', String.Escape),
],
'stringsingle': [
include('stringescape'),
(r'\'', String.Symbol, '#pop'),
(r'[^\'\\\n]+', String),
(r'\n', String.Escape.Error, '#pop'),
],
'string': [
include('stringescape'),
(r'"', String.Symbol, '#pop'),
(r'[^"\\\n]+', String),
(r'\n', String.Escape.Error, '#pop'),
],
'atstring': [
(r'""', String.Escape),
(r'"', String.Symbol, '#pop'),
(r'[^"]+', String),
]
}
class VisualPrologLexer(VisualPrologBaseLexer):
"""Lexer for VisualProlog
.. versionadded:: 2.17
"""
name = 'Visual Prolog'
url = 'https://www.visual-prolog.com/'
aliases = ['visualprolog']
filenames = ['*.pro', '*.cl', '*.i', '*.pack', '*.ph']
majorkw = ('goal', 'namespace', 'interface', 'class', 'implement', 'where', 'open', 'inherits', 'supports', 'resolve',
'delegate', 'monitor', 'constants', 'domains', 'predicates', 'constructors', 'properties', 'clauses', 'facts')
minorkw = ('align', 'anyflow', 'as', 'bitsize', 'determ', 'digits', 'erroneous', 'externally', 'failure', 'from',
'guard', 'multi', 'nondeterm', 'or', 'orelse', 'otherwise', 'procedure', 'resolve', 'single', 'suspending')
directivekw = ('bininclude', 'else', 'elseif', 'endif', 'error', 'export', 'externally', 'from', 'grammargenerate',
'grammarinclude', 'if', 'include', 'message', 'options', 'orrequires', 'requires', 'stringinclude', 'then')
tokens = {
'root': [
(words(minorkw, suffix=r'\b'), Keyword.Minor),
(words(majorkw, suffix=r'\b'), Keyword),
(words(directivekw, prefix='#', suffix=r'\b'), Keyword.Directive),
inherit
]
}
def analyse_text(text):
"""Competes with IDL and Prolog on *.pro; div. lisps on*.cl and SwigLexer on *.i"""
# These are *really* good indicators (and not conflicting with the other languages)
# end-scope first on line e.g. 'end implement'
# section keyword alone on line e.g. 'clauses'
if re.search(r'^\s*(end\s+(interface|class|implement)|(clauses|predicates|domains|facts|constants|properties)\s*$)', text):
return 0.98
else:
return 0
class VisualPrologGrammarLexer(VisualPrologBaseLexer):
"""Lexer for VisualProlog grammar
.. versionadded:: 2.17
"""
name = 'Visual Prolog Grammar'
url = 'https://www.visual-prolog.com/'
aliases = ['visualprologgrammar']
filenames = ['*.vipgrm']
majorkw = ('open', 'namespace', 'grammar', 'nonterminals',
'startsymbols', 'terminals', 'rules', 'precedence')
directivekw = ('bininclude', 'stringinclude')
tokens = {
'root': [
(words(majorkw, suffix=r'\b'), Keyword),
(words(directivekw, prefix='#', suffix=r'\b'), Keyword.Directive),
inherit
]
}
def analyse_text(text):
"""No competditors (currently)"""
# These are *really* good indicators
# end-scope first on line e.g. 'end grammar'
# section keyword alone on line e.g. 'rules'
if re.search(r'^\s*(end\s+grammar|(nonterminals|startsymbols|terminals|rules|precedence)\s*$)', text):
return 0.98
else:
return 0
|
