##// END OF EJS Templates
Backport PR #2738: Unicode content crashes the pager (console)...
Backport PR #2738: Unicode content crashes the pager (console) We've run into an interesting bug in the astropy project. https://github.com/astropy/astropy/issues/600 When displaying a docstring that contains Unicode and is also long enough that it gets sent to the pager it fails since the docstring can't be sent to the pager as ascii. This crashes in the middle of sending content to the pager, so the shell ends up in an inconsistent state and stops echoing the keyboard etc. The fix (attached) is merely to encode the content sent to the pager in the same encoding as the terminal (`sys.stdout.encoding`). Strictly speaking, this isn't always the right thing to do, since the pager may be configured to expect a different encoding than the terminal, but that is sort of an irrational way to configure a machine... ;) For example, `less`, in the absence of any special environment variables to tell it otherwise, uses the standard `LC*` environment variables to determine what to do, which should be the same mechanism the terminal also uses by default. If anyone can suggest a better fix, I'm all for it. Perhaps it should be configurable, defaulting to `sys.stdout.encoding`?

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quickhelp.js
71 lines | 2.9 KiB | application/javascript | JavascriptLexer
//----------------------------------------------------------------------------
// Copyright (C) 2008-2011 The IPython Development Team
//
// Distributed under the terms of the BSD License. The full license is in
// the file COPYING, distributed as part of this software.
//----------------------------------------------------------------------------
//============================================================================
// QuickHelp button
//============================================================================
var IPython = (function (IPython) {
var QuickHelp = function (selector) {
};
QuickHelp.prototype.show_keyboard_shortcuts = function () {
// toggles display of keyboard shortcut dialog
var that = this;
if ( this.shortcut_dialog ){
// if dialog is already shown, close it
this.shortcut_dialog.dialog("close");
this.shortcut_dialog = null;
return;
}
var dialog = $('<div/>');
this.shortcut_dialog = dialog;
var shortcuts = [
{key: 'Shift-Enter', help: 'run cell'},
{key: 'Ctrl-Enter', help: 'run cell in-place'},
{key: 'Ctrl-m x', help: 'cut cell'},
{key: 'Ctrl-m c', help: 'copy cell'},
{key: 'Ctrl-m v', help: 'paste cell'},
{key: 'Ctrl-m d', help: 'delete cell'},
{key: 'Ctrl-m a', help: 'insert cell above'},
{key: 'Ctrl-m b', help: 'insert cell below'},
{key: 'Ctrl-m o', help: 'toggle output'},
{key: 'Ctrl-m O', help: 'toggle output scroll'},
{key: 'Ctrl-m l', help: 'toggle line numbers'},
{key: 'Ctrl-m s', help: 'save notebook'},
{key: 'Ctrl-m j', help: 'move cell down'},
{key: 'Ctrl-m k', help: 'move cell up'},
{key: 'Ctrl-m y', help: 'code cell'},
{key: 'Ctrl-m m', help: 'markdown cell'},
{key: 'Ctrl-m t', help: 'raw cell'},
{key: 'Ctrl-m 1-6', help: 'heading 1-6 cell'},
{key: 'Ctrl-m p', help: 'select previous'},
{key: 'Ctrl-m n', help: 'select next'},
{key: 'Ctrl-m i', help: 'interrupt kernel'},
{key: 'Ctrl-m .', help: 'restart kernel'},
{key: 'Ctrl-m h', help: 'show keyboard shortcuts'}
];
for (var i=0; i<shortcuts.length; i++) {
dialog.append($('<div>').
append($('<span/>').addClass('shortcut_key').html(shortcuts[i].key)).
append($('<span/>').addClass('shortcut_descr').html(' : ' + shortcuts[i].help))
);
};
dialog.bind('dialogclose', function(event) {
// dialog has been closed, allow it to be drawn again.
that.shortcut_dialog = null;
});
dialog.dialog({title: 'Keyboard shortcuts', closeText: ''});
};
// Set module variables
IPython.QuickHelp = QuickHelp;
return IPython;
}(IPython));