[lldb-dev] Xcode 6 Merge: Line Editing

[Todd Fiala]

Great, thanks Kate!

On Sun, Oct 5, 2014 at 9:26 AM, Kate Stone <katherine_stone at apple.com>
wrote:

> Will do.  It turns out they're somewhat intertwined with some of Greg's
> changes, so we'll sort them out first thing next week and post a patch.
>
> Kate Stone k8stone at apple.com
>  Xcode Runtime Analysis Tools
>
> On Oct 3, 2014, at 8:43 PM, Todd Fiala <todd.fiala at gmail.com> wrote:
>
> Hey Kate,
>
> Might you be able to put up the patches (say on reviews.llvm.org) a bit
> ahead of time and we can maybe have a chance to address any issues on the
> Linux side before it goes into top of tree?  Or if reviews.llvm.org is
> inconvenient, we could either do an svn branch, or I'd be happy to clone
> from a github (or create a github branch you could patch into at
> github.com/tfiala/lldb).  Not a big deal either way, but we've hit a
> number of hiccups on the non-Apple side with the IOHandler work in the
> past, and this might speed up our ability to address any issues ahead of
> time.
>
> In any event, thanks for the heads up!
>
> -Todd
>
> On Fri, Oct 3, 2014 at 2:17 PM, Kate Stone <katherine_stone at apple.com>
> wrote:
>
>> If you’ve used the Xcode 6 Swift REPL you may have noticed a number of
>> changes to the way we handle line editing, particularly for text spanning
>> multiple lines.  I intend to merge back the relevant line editing changes
>> in the next few days and wanted to provide some advance warning that this
>> is coming.  This completely replaces editline.h/cpp and makes non-trivial
>> changes to IOHandler.h/cpp.  There are also minor changes to the command
>> interpreter.  From the original commit log:
>>
>>     Complete rewrite of interactive editing support for single- and
>> multi-line input.
>>
>>     Improvements include:
>>     * Use of libedit's wide character support, which is imperfect but a
>> distinct improvement over ASCII-only
>>     * Use of "faint” colorization for line prompts
>>     * Breaking lines and insert new lines in the middle of a batch by
>> simply pressing return
>>     * Joining lines with forward and backward character deletion
>>     * Detection of paste to suppress automatic formatting and statement
>> completion tests
>>     * Correctly reformatting when lines grow or shrink to occupy
>> different numbers of rows
>>     * Saving multi-line history, and correctly preserving the "tip" of
>> history during editing
>>     * Displaying visible ^C and ^D indications when interrupting input or
>> sending EOF
>>     * VI support for multi-line editing
>>     * General correctness and reliability improvements
>>
>> The most obvious caveat here is that while these changes have been
>> exercised on OS X, it’s certainly possible that we’ll see issues crop up on
>> other platforms as a result.
>>
>> Kate Stone k8stone at apple.com
>>  Xcode Runtime Analysis Tools
>>
>>
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>>
>>
>
>
> --
> -Todd
>
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>


-- 
Todd Fiala | Software Engineer | tfiala at google.com
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