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"""
pygments.lexers.urbi
~~~~~~~~~~~~~~~~~~~~
Lexers for UrbiScript language.
:copyright: Copyright 2006-2024 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import re
from pygments.lexer import ExtendedRegexLexer, words
from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
Number, Punctuation
__all__ = ['UrbiscriptLexer']
class UrbiscriptLexer(ExtendedRegexLexer):
"""
For UrbiScript source code.
"""
name = 'UrbiScript'
aliases = ['urbiscript']
filenames = ['*.u']
mimetypes = ['application/x-urbiscript']
url = 'https://github.com/urbiforge/urbi'
version_added = '1.5'
flags = re.DOTALL
# TODO
# - handle Experimental and deprecated tags with specific tokens
# - handle Angles and Durations with specific tokens
def blob_callback(lexer, match, ctx):
text_before_blob = match.group(1)
blob_start = match.group(2)
blob_size_str = match.group(3)
blob_size = int(blob_size_str)
yield match.start(), String, text_before_blob
ctx.pos += len(text_before_blob)
# if blob size doesn't match blob format (example : "\B(2)(aaa)")
# yield blob as a string
if ctx.text[match.end() + blob_size] != ")":
result = "\\B(" + blob_size_str + ")("
yield match.start(), String, result
ctx.pos += len(result)
return
# if blob is well formatted, yield as Escape
blob_text = blob_start + ctx.text[match.end():match.end()+blob_size] + ")"
yield match.start(), String.Escape, blob_text
ctx.pos = match.end() + blob_size + 1 # +1 is the ending ")"
tokens = {
'root': [
(r'\s+', Text),
# comments
(r'//.*?\n', Comment),
(r'/\*', Comment.Multiline, 'comment'),
(r'(every|for|loop|while)(?:;|&|\||,)', Keyword),
(words((
'assert', 'at', 'break', 'case', 'catch', 'closure', 'compl',
'continue', 'default', 'else', 'enum', 'every', 'external',
'finally', 'for', 'freezeif', 'if', 'new', 'onleave', 'return',
'stopif', 'switch', 'this', 'throw', 'timeout', 'try',
'waituntil', 'whenever', 'while'), suffix=r'\b'),
Keyword),
(words((
'asm', 'auto', 'bool', 'char', 'const_cast', 'delete', 'double',
'dynamic_cast', 'explicit', 'export', 'extern', 'float', 'friend',
'goto', 'inline', 'int', 'long', 'mutable', 'namespace', 'register',
'reinterpret_cast', 'short', 'signed', 'sizeof', 'static_cast',
'struct', 'template', 'typedef', 'typeid', 'typename', 'union',
'unsigned', 'using', 'virtual', 'volatile', 'wchar_t'), suffix=r'\b'),
Keyword.Reserved),
# deprecated keywords, use a meaningful token when available
(r'(emit|foreach|internal|loopn|static)\b', Keyword),
# ignored keywords, use a meaningful token when available
(r'(private|protected|public)\b', Keyword),
(r'(var|do|const|function|class)\b', Keyword.Declaration),
(r'(true|false|nil|void)\b', Keyword.Constant),
(words((
'Barrier', 'Binary', 'Boolean', 'CallMessage', 'Channel', 'Code',
'Comparable', 'Container', 'Control', 'Date', 'Dictionary', 'Directory',
'Duration', 'Enumeration', 'Event', 'Exception', 'Executable', 'File',
'Finalizable', 'Float', 'FormatInfo', 'Formatter', 'Global', 'Group',
'Hash', 'InputStream', 'IoService', 'Job', 'Kernel', 'Lazy', 'List',
'Loadable', 'Lobby', 'Location', 'Logger', 'Math', 'Mutex', 'nil',
'Object', 'Orderable', 'OutputStream', 'Pair', 'Path', 'Pattern',
'Position', 'Primitive', 'Process', 'Profile', 'PseudoLazy', 'PubSub',
'RangeIterable', 'Regexp', 'Semaphore', 'Server', 'Singleton', 'Socket',
'StackFrame', 'Stream', 'String', 'System', 'Tag', 'Timeout',
'Traceable', 'TrajectoryGenerator', 'Triplet', 'Tuple', 'UObject',
'UValue', 'UVar'), suffix=r'\b'),
Name.Builtin),
(r'(?:this)\b', Name.Builtin.Pseudo),
# don't match single | and &
(r'(?:[-=+*%/<>~^:]+|\.&?|\|\||&&)', Operator),
(r'(?:and_eq|and|bitand|bitor|in|not|not_eq|or_eq|or|xor_eq|xor)\b',
Operator.Word),
(r'[{}\[\]()]+', Punctuation),
(r'(?:;|\||,|&|\?|!)+', Punctuation),
(r'[$a-zA-Z_]\w*', Name.Other),
(r'0x[0-9a-fA-F]+', Number.Hex),
# Float, Integer, Angle and Duration
(r'(?:[0-9]+(?:(?:\.[0-9]+)?(?:[eE][+-]?[0-9]+)?)?'
r'((?:rad|deg|grad)|(?:ms|s|min|h|d))?)\b', Number.Float),
# handle binary blob in strings
(r'"', String.Double, "string.double"),
(r"'", String.Single, "string.single"),
],
'string.double': [
(r'((?:\\\\|\\"|[^"])*?)(\\B\((\d+)\)\()', blob_callback),
(r'(\\\\|\\[^\\]|[^"\\])*?"', String.Double, '#pop'),
],
'string.single': [
(r"((?:\\\\|\\'|[^'])*?)(\\B\((\d+)\)\()", blob_callback),
(r"(\\\\|\\[^\\]|[^'\\])*?'", String.Single, '#pop'),
],
# from http://pygments.org/docs/lexerdevelopment/#changing-states
'comment': [
(r'[^*/]', Comment.Multiline),
(r'/\*', Comment.Multiline, '#push'),
(r'\*/', Comment.Multiline, '#pop'),
(r'[*/]', Comment.Multiline),
]
}
def analyse_text(text):
"""This is fairly similar to C and others, but freezeif and
waituntil are unique keywords."""
result = 0
if 'freezeif' in text:
result += 0.05
if 'waituntil' in text:
result += 0.05
return result
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