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 [email protected] <mailto:[email protected]>
Xcode Runtime Analysis Tools
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