diff options
Diffstat (limited to 'Lib/idlelib/IdleHistory.py')
| -rw-r--r-- | Lib/idlelib/IdleHistory.py | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/Lib/idlelib/IdleHistory.py b/Lib/idlelib/IdleHistory.py index 25fe6e4..dc1ac8b 100644 --- a/Lib/idlelib/IdleHistory.py +++ b/Lib/idlelib/IdleHistory.py @@ -49,7 +49,13 @@ class History: self.text.insert(where, output) def fetch(self, reverse): - "Fetch statememt and enter into text at cursor." + '''Fetch statememt and replace current line in text widget. + + Set prefix and pointer as needed for successive fetches. + Reset them to None, None when returning to the start line. + Sound bell when return to start line or cannot leave a line + because cyclic is False. + ''' nhist = len(self.history) pointer = self.pointer prefix = self.prefix @@ -64,7 +70,7 @@ class History: else: if self.cyclic: pointer = -1 # will be incremented - else: + else: # abort history_next self.text.bell() return nprefix = len(prefix) @@ -75,7 +81,7 @@ class History: pointer = pointer + 1 if pointer < 0 or pointer >= nhist: self.text.bell() - if not self.cyclic and pointer < 0: + if not self.cyclic and pointer < 0: # abort history_prev return else: if self._get_source("iomark", "end-1c") != prefix: @@ -106,3 +112,9 @@ class History: self.history.append(source) self.pointer = None self.prefix = None + +if __name__ == "__main__": + from test import support + support.use_resources = ['gui'] + from unittest import main + main('idlelib.idle_test.test_idlehistory', verbosity=2, exit=False) |