Python sre_compile.compile方法代码示例

# 需要导入模块: import sre_compile [as 别名]
# 或者: from sre_compile import compile [as 别名]
def _compile(pattern, flags):
    # internal: compile pattern
    try:
        #fixme brython
        #return _cache[type(pattern), pattern, flags]
        return _cache["%s:%s:%s" % (type(pattern), pattern, flags)]
    except KeyError:
       pass
    #print(pattern)
    if isinstance(pattern, _pattern_type):
        if flags:
            raise ValueError(
                "Cannot process flags argument with a compiled pattern")
        return pattern
    if not sre_compile.isstring(pattern):
        raise TypeError("first argument must be string or compiled pattern")
    p = sre_compile.compile(pattern, flags)
    #print('_compile', p)
    if len(_cache) >= _MAXCACHE:
        _cache.clear()
    #fix me brython
    #_cache[type(pattern), pattern, flags] = p
    _cache["%s:%s:%s" % (type(pattern), pattern, flags)]= p
    return p 

# 需要导入模块: import sre_compile [as 别名]
# 或者: from sre_compile import compile [as 别名]
def _compile(*key):
    # internal: compile pattern
    pattern, flags = key
    bypass_cache = flags & DEBUG
    if not bypass_cache:
        cachekey = (type(key[0]),) + key
        try:
            p, loc = _cache[cachekey]
            if loc is None or loc == _locale.setlocale(_locale.LC_CTYPE):
                return p
        except KeyError:
            pass
    if isinstance(pattern, _pattern_type):
        if flags:
            raise ValueError('Cannot process flags argument with a compiled pattern')
        return pattern
    if not sre_compile.isstring(pattern):
        raise TypeError, "first argument must be string or compiled pattern"
    try:
        p = sre_compile.compile(pattern, flags)
    except error, v:
        raise error, v # invalid expression 

# 需要导入模块: import sre_compile [as 别名]
# 或者: from sre_compile import compile [as 别名]
def _compile(*key):
    # internal: compile pattern
    cachekey = (type(key[0]),) + key
    p = _cache.get(cachekey)
    if p is not None:
        return p
    pattern, flags = key
    if isinstance(pattern, _pattern_type):
        if flags:
            raise ValueError('Cannot process flags argument with a compiled pattern')
        return pattern
    if not sre_compile.isstring(pattern):
        raise TypeError, "first argument must be string or compiled pattern"
    try:
        p = sre_compile.compile(pattern, flags)
    except error, v:
        raise error, v # invalid expression 

# 需要导入模块: import sre_compile [as 别名]
# 或者: from sre_compile import compile [as 别名]
def ReplaceAll(pattern, rep, s):
  """Replaces instances of pattern in a string with a replacement.

  The compiled regex is kept in a cache shared by Match and Search.

  Args:
    pattern: regex pattern
    rep: replacement text
    s: search string

  Returns:
    string with replacements made (or original string if no replacements)
  """
  if pattern not in _regexp_compile_cache:
    _regexp_compile_cache[pattern] = sre_compile.compile(pattern)
  return _regexp_compile_cache[pattern].sub(rep, s) 

# 需要导入模块: import sre_compile [as 别名]
# 或者: from sre_compile import compile [as 别名]
def _compile(pattern, flags):
    # internal: compile pattern
    if isinstance(flags, RegexFlag):
        flags = flags.value
    try:
        return _cache[type(pattern), pattern, flags]
    except KeyError:
        pass
    if isinstance(pattern, Pattern):
        if flags:
            raise ValueError(
                "cannot process flags argument with a compiled pattern")
        return pattern
    if not sre_compile.isstring(pattern):
        raise TypeError("first argument must be string or compiled pattern")
    p = sre_compile.compile(pattern, flags)
    if not (flags & DEBUG):
        if len(_cache) >= _MAXCACHE:
            # Drop the oldest item
            try:
                del _cache[next(iter(_cache))]
            except (StopIteration, RuntimeError, KeyError):
                pass
        _cache[type(pattern), pattern, flags] = p
    return p 

# 需要导入模块: import sre_compile [as 别名]
# 或者: from sre_compile import compile [as 别名]
def __init__(self, lexicon, flags=0):
        from sre_constants import BRANCH, SUBPATTERN
        if isinstance(flags, RegexFlag):
            flags = flags.value
        self.lexicon = lexicon
        # combine phrases into a compound pattern
        p = []
        s = sre_parse.Pattern()
        s.flags = flags
        for phrase, action in lexicon:
            gid = s.opengroup()
            p.append(sre_parse.SubPattern(s, [
                (SUBPATTERN, (gid, 0, 0, sre_parse.parse(phrase, flags))),
                ]))
            s.closegroup(gid, p[-1])
        p = sre_parse.SubPattern(s, [(BRANCH, (None, p))])
        self.scanner = sre_compile.compile(p) 

# 需要导入模块: import sre_compile [as 别名]
# 或者: from sre_compile import compile [as 别名]
def compile(pattern, flags=0):
    "Compile a regular expression pattern, returning a pattern object."
    #print("_re.py:214")
    return _compile(pattern, flags) 

# 需要导入模块: import sre_compile [as 别名]
# 或者: from sre_compile import compile [as 别名]
def _compile_repl(repl, pattern):
    # internal: compile replacement pattern
    try:
        #fix me brython
        #return _cache_repl[repl, pattern]
        return _cache_repl["%s:%s" % (repl, pattern)]
    except KeyError:
        pass
    p = sre_parse.parse_template(repl, pattern)
    if len(_cache_repl) >= _MAXCACHE:
        _cache_repl.clear()
    _cache_repl["%s:%s" % (repl, pattern)] = p
    #fix me brython
    #_cache_repl[repl, pattern] = p
    return p 

# 需要导入模块: import sre_compile [as 别名]
# 或者: from sre_compile import compile [as 别名]
def __init__(self, lexicon, flags=0):
        from sre_constants import BRANCH, SUBPATTERN
        self.lexicon = lexicon
        # combine phrases into a compound pattern
        p = []
        s = sre_parse.Pattern()
        s.flags = flags
        for phrase, action in lexicon:
            p.append(sre_parse.SubPattern(s, [
                (SUBPATTERN, (len(p)+1, sre_parse.parse(phrase, flags))),
                ]))
        s.groups = len(p)+1
        p = sre_parse.SubPattern(s, [(BRANCH, (None, p))])
        self.scanner = sre_compile.compile(p) 

# 需要导入模块: import sre_compile [as 别名]
# 或者: from sre_compile import compile [as 别名]
def _compile(regexp):

    parsed = sre_parse.parse(regexp)
    parsed = _remove_group_identifiers(parsed)

    # Add grouping parentheses around the regexp; this will allow
    # us to access the material that was split on.
    # Need to set the Pattern to expect a single group

    pattern = sre_parse.Pattern()
    pattern.groups += 1
    grouped = sre_parse.SubPattern(pattern)
    grouped.append((sre_constants.SUBPATTERN, (1, parsed)))

    return sre_compile.compile(grouped, re.UNICODE | re.MULTILINE | re.DOTALL) 

# 需要导入模块: import sre_compile [as 别名]
# 或者: from sre_compile import compile [as 别名]
def compile(pattern, flags=0):
    "Compile a regular expression pattern, returning a pattern object."
    return _compile(pattern, flags) 

# 需要导入模块: import sre_compile [as 别名]
# 或者: from sre_compile import compile [as 别名]
def _compile_repl(*key):
    # internal: compile replacement pattern
    p = _cache_repl.get(key)
    if p is not None:
        return p
    repl, pattern = key
    try:
        p = sre_parse.parse_template(repl, pattern)
    except error, v:
        raise error, v # invalid expression 

# 需要导入模块: import sre_compile [as 别名]
# 或者: from sre_compile import compile [as 别名]
def _compile(pattern, flags):
    # internal: compile pattern
    try:
        p, loc = _cache[type(pattern), pattern, flags]
        if loc is None or loc == _locale.setlocale(_locale.LC_CTYPE):
            return p
    except KeyError:
        pass
    if isinstance(pattern, _pattern_type):
        if flags:
            raise ValueError(
                "cannot process flags argument with a compiled pattern")
        return pattern
    if not sre_compile.isstring(pattern):
        raise TypeError("first argument must be string or compiled pattern")
    p = sre_compile.compile(pattern, flags)
    if not (flags & DEBUG):
        if len(_cache) >= _MAXCACHE:
            _cache.clear()
        if p.flags & LOCALE:
            if not _locale:
                return p
            loc = _locale.setlocale(_locale.LC_CTYPE)
        else:
            loc = None
        _cache[type(pattern), pattern, flags] = p, loc
    return p 

# 需要导入模块: import sre_compile [as 别名]
# 或者: from sre_compile import compile [as 别名]
def _compile_repl(repl, pattern):
    # internal: compile replacement pattern
    try:
        return _cache_repl[repl, pattern]
    except KeyError:
        pass
    p = sre_parse.parse_template(repl, pattern)
    if len(_cache_repl) >= _MAXCACHE:
        _cache_repl.clear()
    _cache_repl[repl, pattern] = p
    return p 

# 需要导入模块: import sre_compile [as 别名]
# 或者: from sre_compile import compile [as 别名]
def __init__(self, lexicon, flags=0):
        from sre_constants import BRANCH, SUBPATTERN
        self.lexicon = lexicon
        # combine phrases into a compound pattern
        p = []
        s = sre_parse.Pattern()
        s.flags = flags
        for phrase, action in lexicon:
            gid = s.opengroup()
            p.append(sre_parse.SubPattern(s, [
                (SUBPATTERN, (gid, sre_parse.parse(phrase, flags))),
                ]))
            s.closegroup(gid, p[-1])
        p = sre_parse.SubPattern(s, [(BRANCH, (None, p))])
        self.scanner = sre_compile.compile(p)