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comparison mercurial/ui.py @ 8259:98acfd1d2b08

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ui: replace regexp pattern with sequence of choices Use ampersands (&) to delineate the response char in each choice. ui.prompt() responses are now explicitly case insensitive. GUIs that subclass ui can generate dialogs from the full choice names.
author Steve Borho <steve@borho.org>
date Thu, 30 Apr 2009 10:15:32 -0500
parents 46293a0c7e9f
children b87a50b7125c
comparison
equal deleted inserted replaced
8258:2263c49af028 8259:98acfd1d2b08
266 # raw_input() to emit an extra trailing carriage return 266 # raw_input() to emit an extra trailing carriage return
267 if os.linesep == '\r\n' and line and line[-1] == '\r': 267 if os.linesep == '\r\n' and line and line[-1] == '\r':
268 line = line[:-1] 268 line = line[:-1]
269 return line 269 return line
270 270
271 def prompt(self, msg, pat=None, default="y"): 271 def prompt(self, msg, choices=None, default="y"):
272 """Prompt user with msg, read response, and ensure it matches pat 272 """Prompt user with msg, read response, and ensure it matches
273 273 one of the provided choices. choices is a sequence of acceptable
274 If not interactive -- the default is returned 274 responses with the format: ('&None', 'E&xec', 'Sym&link')
275 No sequence implies no response checking. Responses are case
276 insensitive. If ui is not interactive, the default is returned.
275 """ 277 """
276 if not self.interactive(): 278 if not self.interactive():
277 self.note(msg, ' ', default, "\n") 279 self.note(msg, ' ', default, "\n")
278 return default 280 return default
279 while True: 281 while True:
280 try: 282 try:
281 r = self._readline(msg + ' ') 283 r = self._readline(msg + ' ')
282 if not r: 284 if not r:
283 return default 285 return default
284 if not pat or re.match(pat, r): 286 if not choices:
285 return r 287 return r
288 resps = [s[s.index('&')+1].lower() for s in choices]
289 if r.lower() in resps:
290 return r.lower()
286 else: 291 else:
287 self.write(_("unrecognized response\n")) 292 self.write(_("unrecognized response\n"))
288 except EOFError: 293 except EOFError:
289 raise util.Abort(_('response expected')) 294 raise util.Abort(_('response expected'))
290 295