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python-prompt-toolkit v0.58 Release Notes

Release Date: 2016-02-23 // about 8 years ago

  • 🛠 Fixes:

    • Correctly return result for mouse handler in TokenListControl.
    • 🛠 Bugfix in meta-backspace key binding. (Delete all whitespace before the cursor, when there is only whitespace.)
    • 🛠 Bugfix in Vi gu, gU, g? and g~ key bindings (in selection mode).
    • 🏁 Correctly restore default console attributes on Windows.
    • 👍 Disable bracketed paste support in ConEmu. (This was broken.)
    • 👻 When an unknown exception is raised in CommandLineInterface.run(), don't forget to redraw the CLI.

    🆕 New features:

    • 🐎 Many performance improvements and better caching. (Especially in the Document class.)
    • 👌 Support for continuation tokens in shortcuts.prompt and shortcuts.create_prompt_layout.
    • ➕ Added shortcuts.print_tokens function for printing colored output.
    • Sound bell when nothing was deleted.
    • ➕ Added escape sequences for F1-F5 keys on the Linux console.
    • 👌 Improved support for the Linux console. (Switch back to 16 colors.)
    • ➕ Added F13-F24 input codes for xterm.
    • Created prompt_toolkit.token. A custom Token implementation, that is compatible with Pygments.token. (This way, Pygments becomes an optional dependency. For many use cases, nothing except the Token class from Pygments was used, so it was a bit overkill to install Pygments for only that.)
    • 💅 Refactoring of prompt_toolkit.styles.
    • Float objects got a hide_when_covering_content option.
    • Implementation of RPROMPT, like ZSH: Added get_rprompt_tokens to create_prompt_layout.
    • 💅 Some improvements to the default style.
    • Also handle Ctrl-R and Ctrl-S in Vi mode when searching.
    • ➕ Added TabsProcessor: a tool to visualise tabs instead of displaying I.
    • 👍 Give a better error message when trying to run in git-bash.

    • 👌 Support for ANSI color names in style dictionaries.

    • 🔨 Big refactoring of the Window and UIControl classes. This should result in huge performance improvements on big inputs. (While first, a document could have 1,000 lines; now it can have about 100,000 lines on the same system.)

    The Window and UIControl have been rewritten very much. Rather than each time rendering the whole user control, we now only have to render the visible part.

    Because of this, many pieces had to be rewritten:

    • UIControls work differently. They return a UIContent instance that consist of a collection of lines.
    • All processors have been rewritten. (Their API changed as well, because they process one line at a time.)
    • Lexers work differently. Lexer.lex_document should now return a function that returns the tokens for one line. PygmentsLexer has been optimized that it becomes 'lazy', and it has optional syntax synchronisation. That means, that the lexer doesn't have to start the lexing at the beginning of the document. (Which would be slow for big documents.)

    Backwards-incompatible changes:

    • 🔨 As mentioned above, the refactoring of Window and UIControl caused many "internal" APIs to change. All custom UIControl, Processor and Lexer classes have to be rewritten. However, for most applications this should not be an issue. Especially, the shortcuts.prompt function is backwards-compatible.
    • wrap_lines became a property of Window instead of BufferControl.