我们从Python开源项目中，提取了以下50个代码示例，用于说明如何使用string.whitespace()。
def SendChar(output, lib_id, ret_ptr): """Callback function that captures what's sent by ngspice to stdout.""" global send_char_queue clean_output = "".join(output.decode().split('*')) if 'stdout' in clean_output: to_print = ' '.join(clean_output.split(' ')[1:]).strip() if "ngspice" in to_print and "done" in to_print: # pragma: no cover send_char_queue.put("Quitting ngspice") elif "Note: 'quit' asks for detaching ngspice.dll"\ in to_print: # pragma: no cover pass elif to_print not in string.whitespace: send_char_queue.put(to_print) elif 'stderr' in clean_output: # pragma: no cover if 'warning' not in clean_output.lower(): raise SystemError(" ".join(clean_output.split(' ')[1:])) else: send_char_queue.put(clean_output) return 0
def delimitedList( expr, delim=",", combine=False ): """ Helper to define a delimited list of expressions - the delimiter defaults to ','. By default, the list elements and delimiters can have intervening whitespace, and comments, but this can be overridden by passing C{combine=True} in the constructor. If C{combine} is set to C{True}, the matching tokens are returned as a single token string, with the delimiters included; otherwise, the matching tokens are returned as a list of tokens, with the delimiters suppressed. Example:: delimitedList(Word(alphas)).parseString("aa,bb,cc") # -> ['aa', 'bb', 'cc'] delimitedList(Word(hexnums), delim=':', combine=True).parseString("AA:BB:CC:DD:EE") # -> ['AA:BB:CC:DD:EE'] """ dlName = _ustr(expr)+" ["+_ustr(delim)+" "+_ustr(expr)+"]..." if combine: return Combine( expr + ZeroOrMore( delim + expr ) ).setName(dlName) else: return ( expr + ZeroOrMore( Suppress( delim ) + expr ) ).setName(dlName)
def originalTextFor(expr, asString=True): """Helper to return the original, untokenized text for a given expression. Useful to restore the parsed fields of an HTML start tag into the raw tag text itself, or to revert separate tokens with intervening whitespace back to the original matching input text. By default, returns astring containing the original parsed text. If the optional C{asString} argument is passed as C{False}, then the return value is a C{L{ParseResults}} containing any results names that were originally matched, and a single token containing the original matched text from the input string. So if the expression passed to C{L{originalTextFor}} contains expressions with defined results names, you must set C{asString} to C{False} if you want to preserve those results name values.""" locMarker = Empty().setParseAction(lambda s,loc,t: loc) endlocMarker = locMarker.copy() endlocMarker.callPreparse = False matchExpr = locMarker("_original_start") + expr + endlocMarker("_original_end") if asString: extractText = lambda s,l,t: s[t._original_start:t._original_end] else: def extractText(s,l,t): t[:] = [s[t.pop('_original_start'):t.pop('_original_end')]] matchExpr.setParseAction(extractText) return matchExpr
def SetFilters(self, filters): """Sets the error-message filters. These filters are applied when deciding whether to emit a given error message. Args: filters: A string of comma-separated filters (eg "+whitespace/indent"). Each filter should start with + or -; else we die. Raises: ValueError: The comma-separated filters did not all start with '+' or '-'. E.g. "-,+whitespace,-whitespace/indent,whitespace/badfilter" """ # Default filters always have less priority than the flag ones. self.filters = _DEFAULT_FILTERS[:] self.AddFilters(filters)
def CheckForNewlineAtEOF(filename, lines, error): """Logs an error if there is no newline char at the end of the file. Args: filename: The name of the current file. lines: An array of strings, each representing a line of the file. error: The function to call with any errors found. """ # The array lines() was created by adding two newlines to the # original file (go figure), then splitting on \n. # To verify that the file ends in \n, we just have to make sure the # last-but-two element of lines() exists and is empty. if len(lines) < 3 or lines[-2]: error(filename, len(lines) - 2, 'whitespace/ending_newline', 5, 'Could not find a newline character at the end of the file.')
def split(self, *args): # to verify arguments ''.split(*args) sep, maxsplit = (list(args) + [None, None])[:2] if maxsplit is None: maxsplit = -1 keep_empty = True keep_sep = False line, colored_chars = self._separate_str_and_colors() i = 0 if sep is None: sep = '\s+' keep_empty = False # to skip whitespaces at the beginning # ' a b'.split() -> ['a', 'b'] n = len(line) while i < n and line[i] in string.whitespace: i += 1 return self._split(line[i:], colored_chars[i:], sep, maxsplit, keep_sep, keep_empty)
def header_link(title): """Return a github-style link target for a title. >>> header_link('Hello there!') 'hello-there' """ # This doesn't do the-title-1, the-title-2 etc. with multiple titles # with same text, but usually this doesn't matter. result = '' for character in title: if character in string.whitespace: result += '-' elif character in string.punctuation: pass else: result += character.lower() return result
def header_link(title): """Return a github-style link target for a title. >>> header_link('Hello there!') 'hello-there' """ # This doesn't handle multiple titles with the same text in the # same file, but usually that's not a problem. GitHub makes # links like the-title, the-title-1, the-title-2 etc. result = '' for character in title: if character in string.whitespace: result += '-' elif character in string.punctuation: pass else: result += character.lower() return result
def setDefaultWhitespaceChars( chars ): r""" Overrides the default whitespace chars Example:: # default whitespace chars are space, <TAB> and newline OneOrMore(Word(alphas)).parseString("abc def\nghi jkl") # -> ['abc', 'def', 'ghi', 'jkl'] # change to just treat newline as significant ParserElement.setDefaultWhitespaceChars(" \t") OneOrMore(Word(alphas)).parseString("abc def\nghi jkl") # -> ['abc', 'def'] """ ParserElement.DEFAULT_WHITE_CHARS = chars
def leaveWhitespace( self ): """ Disables the skipping of whitespace before matching the characters in the C{ParserElement}'s defined pattern. This is normally only used internally by the pyparsing module, but may be needed in some whitespace-sensitive grammars. """ self.skipWhitespace = False return self
def setWhitespaceChars( self, chars ): """ Overrides the default whitespace chars """ self.skipWhitespace = True self.whiteChars = chars self.copyDefaultWhiteChars = False return self
def parseImpl( self, instring, loc, doActions=True ): result = instring[loc] == self.firstQuoteChar and self.re.match(instring,loc) or None if not result: raise ParseException(instring, loc, self.errmsg, self) loc = result.end() ret = result.group() if self.unquoteResults: # strip off quotes ret = ret[self.quoteCharLen:-self.endQuoteCharLen] if isinstance(ret,basestring): # replace escaped whitespace if '\\' in ret and self.convertWhitespaceEscapes: ws_map = { r'\t' : '\t', r'\n' : '\n', r'\f' : '\f', r'\r' : '\r', } for wslit,wschar in ws_map.items(): ret = ret.replace(wslit, wschar) # replace escaped characters if self.escChar: ret = re.sub(self.escCharReplacePattern,"\g<1>",ret) # replace escaped quotes if self.escQuote: ret = ret.replace(self.escQuote, self.endQuoteChar) return loc, ret
def parseImpl( self, instring, loc, doActions=True ): if loc != 0: # see if entire string up to here is just whitespace and ignoreables if loc != self.preParse( instring, 0 ): raise ParseException(instring, loc, self.errmsg, self) return loc, []
def originalTextFor(expr, asString=True): """ Helper to return the original, untokenized text for a given expression. Useful to restore the parsed fields of an HTML start tag into the raw tag text itself, or to revert separate tokens with intervening whitespace back to the original matching input text. By default, returns astring containing the original parsed text. If the optional C{asString} argument is passed as C{False}, then the return value is a C{L{ParseResults}} containing any results names that were originally matched, and a single token containing the original matched text from the input string. So if the expression passed to C{L{originalTextFor}} contains expressions with defined results names, you must set C{asString} to C{False} if you want to preserve those results name values. Example:: src = "this is test <b> bold <i>text</i> </b> normal text " for tag in ("b","i"): opener,closer = makeHTMLTags(tag) patt = originalTextFor(opener + SkipTo(closer) + closer) print(patt.searchString(src)[0]) prints:: ['<b> bold <i>text</i> </b>'] ['<i>text</i>'] """ locMarker = Empty().setParseAction(lambda s,loc,t: loc) endlocMarker = locMarker.copy() endlocMarker.callPreparse = False matchExpr = locMarker("_original_start") + expr + endlocMarker("_original_end") if asString: extractText = lambda s,l,t: s[t._original_start:t._original_end] else: def extractText(s,l,t): t[:] = [s[t.pop('_original_start'):t.pop('_original_end')]] matchExpr.setParseAction(extractText) matchExpr.ignoreExprs = expr.ignoreExprs return matchExpr
def __init__( self, expr, joinString="", adjacent=True ): super(Combine,self).__init__( expr ) # suppress whitespace-stripping in contained parse expressions, but re-enable it on the Combine itself if adjacent: self.leaveWhitespace() self.adjacent = adjacent self.skipWhitespace = True self.joinString = joinString self.callPreparse = True
def _munge_whitespace(self, text): """_munge_whitespace(text : string) -> string Munge whitespace in text: expand tabs and convert all other whitespace characters to spaces. Eg. " foo\tbar\n\nbaz" becomes " foo bar baz". """ if self.expand_tabs: text = text.expandtabs() if self.replace_whitespace: if isinstance(text, str): text = text.translate(self.whitespace_trans) elif isinstance(text, unicode): text = text.translate(self.unicode_whitespace_trans) return text
