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Þ'¯°ÌME[YéïĵÂCå½ Ué©Áû'Ê9%eÔðNU”ë‘ÌsD3/®+UI˜9h.WC”빓$#:pz:YÓ ¿xž* ³$Í +$kñAŠ‹†¢ Uê>¸)_š¬÷©ßAÂÔb9ÇU ¯¾á•9¯ÏÏ÷O÷¼¼Fähal1‰3Ì[Ïr•´UCksNÐ] R‘¸¥H+§Šé†c©vÖÞ0iÓ76s†î!§=ß ¼~Ô'°Ãmäoäš³ªøi1úÉ)³yV8 CLÄØÁ‘WYïi€H6ÖÑiámø^ÈY´°Ñ7¥Û*—Ñ©L«Qƒï—Ùrÿ ›£Ð*š¸ˆL©ˆ$ˆ ÷¾D§9È®«qbqC)–ˆïv´çñsÑVT­Ø, <àïºÀO«Jý·õ àfPìð .wFšir´þ’2_Y *Æ€x\« ì€9š@ Ž|F⇥ˆkZ@hÖÄ0t¿-<“‹qµ¾*ZL¤Ú)&BJpÓF5=$„at*Zš$’ÑtdûÝRI1 2Ž‰$€$I$#‰SÞ’Hë¬ï;Á$¡t$’`<(ñÇt)$‡Ð.Êf¢X’Kt=Éé$‚ˆªè¢oÝëòI%Rgcª÷ŠyI%¡‰ÿ !ñ)´õ $¤ Ô’IIGÿÙ""" pygments.util ~~~~~~~~~~~~~ Utility functions. :copyright: Copyright 2006-2022 by the Pygments team, see AUTHORS. :license: BSD, see LICENSE for details. """ import re from io import TextIOWrapper split_path_re = re.compile(r'[/\\ ]') doctype_lookup_re = re.compile(r''' ]*> ''', re.DOTALL | re.MULTILINE | re.VERBOSE) tag_re = re.compile(r'<(.+?)(\s.*?)?>.*?', re.IGNORECASE | re.DOTALL | re.MULTILINE) xml_decl_re = re.compile(r'\s*<\?xml[^>]*\?>', re.I) class ClassNotFound(ValueError): """Raised if one of the lookup functions didn't find a matching class.""" class OptionError(Exception): pass def get_choice_opt(options, optname, allowed, default=None, normcase=False): string = options.get(optname, default) if normcase: string = string.lower() if string not in allowed: raise OptionError('Value for option %s must be one of %s' % (optname, ', '.join(map(str, allowed)))) return string def get_bool_opt(options, optname, default=None): string = options.get(optname, default) if isinstance(string, bool): return string elif isinstance(string, int): return bool(string) elif not isinstance(string, str): raise OptionError('Invalid type %r for option %s; use ' '1/0, yes/no, true/false, on/off' % ( string, optname)) elif string.lower() in ('1', 'yes', 'true', 'on'): return True elif string.lower() in ('0', 'no', 'false', 'off'): return False else: raise OptionError('Invalid value %r for option %s; use ' '1/0, yes/no, true/false, on/off' % ( string, optname)) def get_int_opt(options, optname, default=None): string = options.get(optname, default) try: return int(string) except TypeError: raise OptionError('Invalid type %r for option %s; you ' 'must give an integer value' % ( string, optname)) except ValueError: raise OptionError('Invalid value %r for option %s; you ' 'must give an integer value' % ( string, optname)) def get_list_opt(options, optname, default=None): val = options.get(optname, default) if isinstance(val, str): return val.split() elif isinstance(val, (list, tuple)): return list(val) else: raise OptionError('Invalid type %r for option %s; you ' 'must give a list value' % ( val, optname)) def docstring_headline(obj): if not obj.__doc__: return '' res = [] for line in obj.__doc__.strip().splitlines(): if line.strip(): res.append(" " + line.strip()) else: break return ''.join(res).lstrip() def make_analysator(f): """Return a static text analyser function that returns float values.""" def text_analyse(text): try: rv = f(text) except Exception: return 0.0 if not rv: return 0.0 try: return min(1.0, max(0.0, float(rv))) except (ValueError, TypeError): return 0.0 text_analyse.__doc__ = f.__doc__ return staticmethod(text_analyse) def shebang_matches(text, regex): r"""Check if the given regular expression matches the last part of the shebang if one exists. >>> from pygments.util import shebang_matches >>> shebang_matches('#!/usr/bin/env python', r'python(2\.\d)?') True >>> shebang_matches('#!/usr/bin/python2.4', r'python(2\.\d)?') True >>> shebang_matches('#!/usr/bin/python-ruby', r'python(2\.\d)?') False >>> shebang_matches('#!/usr/bin/python/ruby', r'python(2\.\d)?') False >>> shebang_matches('#!/usr/bin/startsomethingwith python', ... r'python(2\.\d)?') True It also checks for common windows executable file extensions:: >>> shebang_matches('#!C:\\Python2.4\\Python.exe', r'python(2\.\d)?') True Parameters (``'-f'`` or ``'--foo'`` are ignored so ``'perl'`` does the same as ``'perl -e'``) Note that this method automatically searches the whole string (eg: the regular expression is wrapped in ``'^$'``) """ index = text.find('\n') if index >= 0: first_line = text[:index].lower() else: first_line = text.lower() if first_line.startswith('#!'): try: found = [x for x in split_path_re.split(first_line[2:].strip()) if x and not x.startswith('-')][-1] except IndexError: return False regex = re.compile(r'^%s(\.(exe|cmd|bat|bin))?$' % regex, re.IGNORECASE) if regex.search(found) is not None: return True return False def doctype_matches(text, regex): """Check if the doctype matches a regular expression (if present). Note that this method only checks the first part of a DOCTYPE. eg: 'html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"' """ m = doctype_lookup_re.search(text) if m is None: return False doctype = m.group(1) return re.compile(regex, re.I).match(doctype.strip()) is not None def html_doctype_matches(text): """Check if the file looks like it has a html doctype.""" return doctype_matches(text, r'html') _looks_like_xml_cache = {} def looks_like_xml(text): """Check if a doctype exists or if we have some tags.""" if xml_decl_re.match(text): return True key = hash(text) try: return _looks_like_xml_cache[key] except KeyError: m = doctype_lookup_re.search(text) if m is not None: return True rv = tag_re.search(text[:1000]) is not None _looks_like_xml_cache[key] = rv return rv def surrogatepair(c): """Given a unicode character code with length greater than 16 bits, return the two 16 bit surrogate pair. """ # From example D28 of: # http://www.unicode.org/book/ch03.pdf return (0xd7c0 + (c >> 10), (0xdc00 + (c & 0x3ff))) def format_lines(var_name, seq, raw=False, indent_level=0): """Formats a sequence of strings for output.""" lines = [] base_indent = ' ' * indent_level * 4 inner_indent = ' ' * (indent_level + 1) * 4 lines.append(base_indent + var_name + ' = (') if raw: # These should be preformatted reprs of, say, tuples. for i in seq: lines.append(inner_indent + i + ',') else: for i in seq: # Force use of single quotes r = repr(i + '"') lines.append(inner_indent + r[:-2] + r[-1] + ',') lines.append(base_indent + ')') return '\n'.join(lines) def duplicates_removed(it, already_seen=()): """ Returns a list with duplicates removed from the iterable `it`. Order is preserved. """ lst = [] seen = set() for i in it: if i in seen or i in already_seen: continue lst.append(i) seen.add(i) return lst class Future: """Generic class to defer some work. Handled specially in RegexLexerMeta, to support regex string construction at first use. """ def get(self): raise NotImplementedError def guess_decode(text): """Decode *text* with guessed encoding. First try UTF-8; this should fail for non-UTF-8 encodings. Then try the preferred locale encoding. Fall back to latin-1, which always works. """ try: text = text.decode('utf-8') return text, 'utf-8' except UnicodeDecodeError: try: import locale prefencoding = locale.getpreferredencoding() text = text.decode() return text, prefencoding except (UnicodeDecodeError, LookupError): text = text.decode('latin1') return text, 'latin1' def guess_decode_from_terminal(text, term): """Decode *text* coming from terminal *term*. First try the terminal encoding, if given. Then try UTF-8. Then try the preferred locale encoding. Fall back to latin-1, which always works. """ if getattr(term, 'encoding', None): try: text = text.decode(term.encoding) except UnicodeDecodeError: pass else: return text, term.encoding return guess_decode(text) def terminal_encoding(term): """Return our best guess of encoding for the given *term*.""" if getattr(term, 'encoding', None): return term.encoding import locale return locale.getpreferredencoding() class UnclosingTextIOWrapper(TextIOWrapper): # Don't close underlying buffer on destruction. def close(self): self.flush()