Mercurial > python-cmd2
changeset 76:dcd5d13e5603
fixed problem with interpreting terminators
author | catherine@Elli.myhome.westell.com |
---|---|
date | Sat, 28 Jun 2008 10:31:12 -0400 |
parents | 8b2603d1acc1 |
children | bb44928c3856 |
files | cmd2.py |
diffstat | 1 files changed, 27 insertions(+), 40 deletions(-) [+] |
line wrap: on
line diff
--- a/cmd2.py Fri Jun 27 15:36:03 2008 -0400 +++ b/cmd2.py Sat Jun 28 10:31:12 2008 -0400 @@ -129,13 +129,23 @@ setPasteBuffer = getPasteBuffer pyparsing.ParserElement.setDefaultWhitespaceChars(' \t') # see http://pyparsing.wikispaces.com/message/view/home/1352689 - + +class Arguments(str): + def __new__(cls, s, parent): + result = str.__new__(cls, s) + result.parent = parent + return result + class UserCommand(str): def __new__(cls, s, app): return str.__new__(cls, s) def __init__(self, s, app): self.terminator = None self.terminator_suffix = None + s = s.strip() + shortcut = app.shortcuts.get(s[0]) + if shortcut and hasattr(app, 'do_%s' % shortcut): + s = '%s %s' % (shortcut, s[1:]) self.searchable = self.asEntered = s self.app = app self.output_destination_pattern = self.punctuationPattern(['>>', '>']) @@ -150,7 +160,7 @@ processed.ignore(pyparsing.dblQuotedString) pattern = pyparsing.SkipTo(processed) + processed + pyparsing.restOfLine return pattern - def find_punctuation(self): + def parse(self): punctuators = ['|','>','>>','<'] punctuators.extend(self.app.terminators) punctuated = self.punctuationPattern(punctuators).searchString(self.asEntered) @@ -158,6 +168,13 @@ self.executable, self.searchable = punctuated[0][0], self.asEntered[len(punctuated[0][0]):] else: self.executable, self.searchable = self.asEntered, '' + self.executable = self.executable.strip() + try: + self.cmd, self.arg = (pyparsing.Word(self.app.identchars)+pyparsing.restOfLine).parseString(self.executable) + self.arg = Arguments(self.arg, self) + except pyparsing.ParseException: + self.cmd, self.arg = None, None + def complete(self): terminator_finder = self.punctuationPattern(self.app.terminators) result = terminator_finder.searchString(self.asEntered) @@ -165,11 +182,10 @@ inp = self.app.pseudo_raw_input(self.app.continuationPrompt) self.asEntered = '%s\n%s' % (self.asEntered, inp) result = terminator_finder.searchString(self.asEntered) - try: - self.terminator = result[0][1][0] - self.terminator_suffix = result[0][1][1] - except IndexError: - self.terminator = result[0][1] + self.terminator = result[0][1] + if len(result[0]) > 3: + self.terminator_suffix = result[0][2] + else: self.terminator_suffix = None def redirectedInput(self): inputFrom = self.input_source_pattern.searchString(self.searchable) @@ -195,27 +211,6 @@ mode = 'w' return dest, mode return None, None - - - - """ - Produces a string parser based on a list of targets to search for. - Output is a parser function. - Parser's output is a tuple: (before the target, [elements of the target], after the target) - >>> p = punctuationParser([';', 'EOF']) - >>> p('is terminated;') - ('is terminated', [';'], '') - >>> p('is terminated EOF after the end') - ('is terminated', ['EOF'], 'after the end') - >>> p('is not terminated') - >>> pattern1 = pyparsing.Literal(';') + pyparsing.Optional(pyparsing.Word(pyparsing.nums)) - >>> p2 = punctuationParser([pattern1, 'EOF']) - >>> p2('the quick brown fox;4') - ('the quick brown fox', [';', '4'], '') - >>> p2('the quick brown foxEOF') - ('the quick brown fox', ['EOF'], '') - >>> p2('nothing') - """ class Cmd(cmd.Cmd): caseInsensitive = True @@ -300,7 +295,7 @@ statement = UserCommand(originalStatement, self) if (not assumeComplete) and (command in self.multilineCommands): statement.complete() - statement.find_punctuation() + statement.parse() statement.redirectedInput() pipeTo = statement.pipeDestination() if pipeTo: @@ -318,7 +313,7 @@ if outputMode == 'a': self.stdout.write(getPasteBuffer()) - stop = cmd.Cmd.onecmd(self, statement.executable) + stop = cmd.Cmd.onecmd(self, statement) try: if command not in self.excludeFromHistory: self.history.append(originalStatement) @@ -411,17 +406,9 @@ the arguments. Returns a tuple containing (command, args, line). 'command' and 'args' may be None if the line couldn't be parsed. """ - line = line.strip() - if not line: + if not line.executable: return None, None, line - shortcut = self.shortcuts.get(line[0]) - if shortcut and hasattr(self, 'do_%s' % shortcut): - line = '%s %s' % (shortcut, line[1:]) - i, n = 0, len(line) - while i < n and line[i] in self.identchars: i = i+1 - cmd, arg = line[:i], line[i:].strip() - return cmd, arg, line - + return line.cmd, line.arg, line.executable def showParam(self, param): param = self.clean(param) if param in self.settable: