[PyPy-issue] [issue664] [PATCH] Extend readline emulation to support colour code and ansi escapes

[Martijn]

New submission from Martijn <ss at kleptog.org>:

Currently IPython breaks on terminal input because it uses readline features not
in PyPy, namely:

- Use of \x01 and \x02 to bracket ANSI escape codes to exclude them from length
calculations.
- Use of newlines in prompts.
- ANSI codes weren't handled in unix_console.

For the first there's a new function to calculate the length of the prompt. For
the second the prompt is split on newlines and output separately, which produces
the desired effect. For the last I added a bit of code that, if ANSI codes were
used, moves the cursor to a known position.

----------
effort: ???
files: readline-prompt.patch
messages: 2276
nosy: kleptog, pypy-issue
priority: feature
release: ???
status: unread
title: [PATCH] Extend readline emulation to support colour code and ansi escapes

_______________________________________________________
PyPy development tracker <pypy-dev-issue at codespeak.net>
<https://codespeak.net/issue/pypy-dev/issue664>
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