146 lines
5.9 KiB
Python
146 lines
5.9 KiB
Python
"""
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pygments.lexers.urbi
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~~~~~~~~~~~~~~~~~~~~
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Lexers for UrbiScript language.
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:copyright: Copyright 2006-2025 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 ExtendedRegexLexer, words
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from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
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Number, Punctuation
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__all__ = ['UrbiscriptLexer']
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class UrbiscriptLexer(ExtendedRegexLexer):
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"""
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For UrbiScript source code.
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"""
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name = 'UrbiScript'
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aliases = ['urbiscript']
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filenames = ['*.u']
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mimetypes = ['application/x-urbiscript']
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url = 'https://github.com/urbiforge/urbi'
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version_added = '1.5'
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flags = re.DOTALL
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# TODO
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# - handle Experimental and deprecated tags with specific tokens
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# - handle Angles and Durations with specific tokens
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def blob_callback(lexer, match, ctx):
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text_before_blob = match.group(1)
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blob_start = match.group(2)
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blob_size_str = match.group(3)
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blob_size = int(blob_size_str)
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yield match.start(), String, text_before_blob
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ctx.pos += len(text_before_blob)
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# if blob size doesn't match blob format (example : "\B(2)(aaa)")
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# yield blob as a string
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if ctx.text[match.end() + blob_size] != ")":
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result = "\\B(" + blob_size_str + ")("
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yield match.start(), String, result
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ctx.pos += len(result)
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return
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# if blob is well formatted, yield as Escape
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blob_text = blob_start + ctx.text[match.end():match.end()+blob_size] + ")"
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yield match.start(), String.Escape, blob_text
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ctx.pos = match.end() + blob_size + 1 # +1 is the ending ")"
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tokens = {
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'root': [
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(r'\s+', Text),
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# comments
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(r'//.*?\n', Comment),
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(r'/\*', Comment.Multiline, 'comment'),
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(r'(every|for|loop|while)(?:;|&|\||,)', Keyword),
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(words((
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'assert', 'at', 'break', 'case', 'catch', 'closure', 'compl',
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'continue', 'default', 'else', 'enum', 'every', 'external',
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'finally', 'for', 'freezeif', 'if', 'new', 'onleave', 'return',
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'stopif', 'switch', 'this', 'throw', 'timeout', 'try',
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'waituntil', 'whenever', 'while'), suffix=r'\b'),
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Keyword),
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(words((
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'asm', 'auto', 'bool', 'char', 'const_cast', 'delete', 'double',
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'dynamic_cast', 'explicit', 'export', 'extern', 'float', 'friend',
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'goto', 'inline', 'int', 'long', 'mutable', 'namespace', 'register',
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'reinterpret_cast', 'short', 'signed', 'sizeof', 'static_cast',
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'struct', 'template', 'typedef', 'typeid', 'typename', 'union',
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'unsigned', 'using', 'virtual', 'volatile', 'wchar_t'), suffix=r'\b'),
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Keyword.Reserved),
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# deprecated keywords, use a meaningful token when available
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(r'(emit|foreach|internal|loopn|static)\b', Keyword),
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# ignored keywords, use a meaningful token when available
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(r'(private|protected|public)\b', Keyword),
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(r'(var|do|const|function|class)\b', Keyword.Declaration),
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(r'(true|false|nil|void)\b', Keyword.Constant),
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(words((
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'Barrier', 'Binary', 'Boolean', 'CallMessage', 'Channel', 'Code',
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'Comparable', 'Container', 'Control', 'Date', 'Dictionary', 'Directory',
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'Duration', 'Enumeration', 'Event', 'Exception', 'Executable', 'File',
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'Finalizable', 'Float', 'FormatInfo', 'Formatter', 'Global', 'Group',
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'Hash', 'InputStream', 'IoService', 'Job', 'Kernel', 'Lazy', 'List',
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'Loadable', 'Lobby', 'Location', 'Logger', 'Math', 'Mutex', 'nil',
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'Object', 'Orderable', 'OutputStream', 'Pair', 'Path', 'Pattern',
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'Position', 'Primitive', 'Process', 'Profile', 'PseudoLazy', 'PubSub',
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'RangeIterable', 'Regexp', 'Semaphore', 'Server', 'Singleton', 'Socket',
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'StackFrame', 'Stream', 'String', 'System', 'Tag', 'Timeout',
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'Traceable', 'TrajectoryGenerator', 'Triplet', 'Tuple', 'UObject',
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'UValue', 'UVar'), suffix=r'\b'),
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Name.Builtin),
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(r'(?:this)\b', Name.Builtin.Pseudo),
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# don't match single | and &
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(r'(?:[-=+*%/<>~^:]+|\.&?|\|\||&&)', Operator),
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(r'(?:and_eq|and|bitand|bitor|in|not|not_eq|or_eq|or|xor_eq|xor)\b',
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Operator.Word),
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(r'[{}\[\]()]+', Punctuation),
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(r'(?:;|\||,|&|\?|!)+', Punctuation),
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(r'[$a-zA-Z_]\w*', Name.Other),
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(r'0x[0-9a-fA-F]+', Number.Hex),
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# Float, Integer, Angle and Duration
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(r'(?:[0-9]+(?:(?:\.[0-9]+)?(?:[eE][+-]?[0-9]+)?)?'
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r'((?:rad|deg|grad)|(?:ms|s|min|h|d))?)\b', Number.Float),
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# handle binary blob in strings
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(r'"', String.Double, "string.double"),
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(r"'", String.Single, "string.single"),
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],
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'string.double': [
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(r'((?:\\\\|\\"|[^"])*?)(\\B\((\d+)\)\()', blob_callback),
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(r'(\\\\|\\[^\\]|[^"\\])*?"', String.Double, '#pop'),
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],
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'string.single': [
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(r"((?:\\\\|\\'|[^'])*?)(\\B\((\d+)\)\()", blob_callback),
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(r"(\\\\|\\[^\\]|[^'\\])*?'", String.Single, '#pop'),
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],
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# from http://pygments.org/docs/lexerdevelopment/#changing-states
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'comment': [
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(r'[^*/]', Comment.Multiline),
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(r'/\*', Comment.Multiline, '#push'),
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(r'\*/', Comment.Multiline, '#pop'),
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(r'[*/]', Comment.Multiline),
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]
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}
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def analyse_text(text):
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"""This is fairly similar to C and others, but freezeif and
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waituntil are unique keywords."""
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result = 0
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if 'freezeif' in text:
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result += 0.05
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if 'waituntil' in text:
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result += 0.05
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return result
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