Mercurial > python-cmd2
diff cmd2.py @ 154:606ad25c7f7e
new experiment with ignore?
author | catherine@dellzilla |
---|---|
date | Fri, 21 Nov 2008 15:39:42 -0500 |
parents | 5c5c458a6b70 |
children | 8ba5127167f5 |
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--- a/cmd2.py Fri Nov 21 14:33:15 2008 -0500 +++ b/cmd2.py Fri Nov 21 15:39:42 2008 -0500 @@ -147,7 +147,26 @@ result = pyparsing.ParseResults('') result['before'] = s return result - + + +def replaceInput(source): + if source: + newinput = open(source[0], 'r').read() + else: + newinput = getPasteBuffer() + + try: + if statement.inputFrom: + newinput = open(statement.inputFrom, 'r').read() + else: + newinput = getPasteBuffer() + except (OSError,), e: + print e + return 0 + start, end = self.redirectInPattern.scanString(statement.fullStatement).next()[1:] + return self.onecmd('%s%s%s' % (statement.fullStatement[:start], + newinput, statement.fullStatement[end:])) + class Cmd(cmd.Cmd): echo = False caseInsensitive = True @@ -330,6 +349,7 @@ - terminator: ; - suffix: - terminator: ; + >>> print c.parsed('hello <').dump() ''' outputParser = pyparsing.oneOf(['>>','>'])('output') terminatorParser = pyparsing.oneOf(self.terminators)('terminator') @@ -337,8 +357,8 @@ multilineCommand = pyparsing.Or([pyparsing.Keyword(c, caseless=self.caseInsensitive) for c in self.multilineCommands])('multilineCommand') oneLineCommand = pyparsing.Word(pyparsing.printables)('command') afterElements = \ - pyparsing.Optional('|' + pyparsing.SkipTo(outputParser ^ stringEnd)('pipeDest')) + \ - pyparsing.Optional(outputParser + pyparsing.SkipTo(stringEnd)('outputDest')) + pyparsing.Optional('|' + pyparsing.SkipTo(outputParser ^ stringEnd)('pipeTo')) + \ + pyparsing.Optional(outputParser + pyparsing.SkipTo(stringEnd)('outputTo')) if self.caseInsensitive: multilineCommand.setParseAction(lambda x: x[0].lower()) oneLineCommand.setParseAction(lambda x: x[0].lower()) @@ -354,12 +374,26 @@ self.commentGrammars.ignore(pyparsing.sglQuotedString).ignore(pyparsing.dblQuotedString).setParseAction(lambda x: '') self.commentInProgress.ignore(pyparsing.sglQuotedString).ignore(pyparsing.dblQuotedString).ignore(pyparsing.cStyleComment) self.parser.ignore(pyparsing.sglQuotedString).ignore(pyparsing.dblQuotedString).ignore(self.commentGrammars).ignore(self.commentInProgress) + + inputMark = pyparsing.Literal('<') + inputMark.setParseAction(lambda x: '') + inputFrom = pyparsing.Word(pyparsing.printables)('inputFrom') + inputFrom.setParseAction(lambda x: (x and open(x[0]).read()) or getPasteBuffer()) + self.inputParser = inputMark + pyparsing.Optional(inputFrom) + self.inputParser.ignore(pyparsing.sglQuotedString).ignore(pyparsing.dblQuotedString).ignore(self.commentGrammars).ignore(self.commentInProgress) - def parsed(self, s): + def parsed(self, raw): + s = self.inputParser.transformString(raw) + for (shortcut, expansion) in self.shortcuts.items(): + if s.startswith(shortcut): + s = s.replace(shortcut, expansion + ' ', 1) + break result = self.parser.parseString(s) result['command'] = result.multilineCommand or result.command + result['statement'] = ' '.join(result.statement) + result['raw'] = raw + result['clean'] = self.commentGrammars.transformString(result.statement) result['cleanArgs'] = self.commentGrammars.transformString(result.args) - result['statement'] = ' '.join(result.statement) return result def extractCommand(self, statement): @@ -386,27 +420,19 @@ return if not pyparsing.Or(self.commentGrammars).setParseAction(lambda x: '').transformString(line): return - statement = self.parsed(line) - while (statement.command in self.multilineCommands) and not \ - (statement.terminator or assumeComplete): - statement = self.parsed('%s\n%s' % (statement.fullStatement, - self.pseudo_raw_input(self.continuationPrompt))) + try: + statement = self.parsed(line) + while statement.multilineCommand and not (statement.terminator or assumeComplete): + statement = self.parsed('%s\n%s' % (statement.raw, + self.pseudo_raw_input(self.continuationPrompt))) + except Exception, e: + print e + return 0 statekeeper = None stop = 0 - if statement.input: - try: - if statement.inputFrom: - newinput = open(statement.inputFrom, 'r').read() - else: - newinput = getPasteBuffer() - except (OSError,), e: - print e - return 0 - start, end = self.redirectInPattern.scanString(statement.fullStatement).next()[1:] - return self.onecmd('%s%s%s' % (statement.fullStatement[:start], - newinput, statement.fullStatement[end:])) - if statement.pipe and statement.pipeTo: + + if statement.pipeTo: redirect = subprocess.Popen(statement.pipeTo, shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE) statekeeper = Statekeeper(self, ('stdout',)) self.stdout = redirect.stdin @@ -427,12 +453,12 @@ if statement.output == '>>': self.stdout.write(getPasteBuffer()) try: - stop = cmd.Cmd.onecmd(self, statement.statement) + stop = cmd.Cmd.onecmd(self, statement.clean) except Exception, e: print e try: if statement.command not in self.excludeFromHistory: - self.history.append(statement.fullStatement) + self.history.append(statement.raw) finally: if statekeeper: if statement.output and not statement.outputTo: