The Racket repository
43b0e2157c
Profiler output suggests that forward-match is a bit expensive. Here
is profiler output from the original code, when profiler is wrapped
around tabify-selection:
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loop [34] 0.1%
get-backward-sexp method in ...k/private/racket.rkt:425:2 [28] 99.9%
[37] 50648(61.1%) 0(0.0%) stick-to-next-sexp? method in ...k/private/racket.rkt:425:2 ...
do-forward-match method in ...rk/private/color.rkt:71:2 [50] 99.9%
...
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get-forward-sexp method in ...k/private/racket.rkt:425:2 [38] 17.1%
stick-to-next-sexp? method in ...k/private/racket.rkt:425:2 [37] 82.9%
[50] 61043(73.6%) 53(0.1%) do-forward-match method in ...rk/private/color.rkt:71:2 ...
colorer-driver method in ...rk/private/color.rkt:71:2 [66] 99.8%
match-forward method in paren-tree% [72] 0.1%
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The patch does the prerequisite string matching before calling forward-match.
Reference to dev list: http://lists.racket-lang.org/dev/archive/2012-November/010976.html
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| README | ||
The Racket programming language =============================== Important executables: * DrRacket: Racket's integrated development environment (start here!). * Racket: the main command-line entry point for running racket programs and scripts. * GRacket: the GUI-mode Racket executable. * raco: Racket's command-line toolset. More Information ---------------- Racket comes with extensive documentation: use DrRacket's `Help' menu, or run `raco docs'. Also, visit us at http://racket-lang.org/ for more Racket resources. Instructions for building Racket from source are in src/README. License ------- Racket Copyright (c) 2010-2012 PLT Scheme Inc. Racket is distributed under the GNU Lesser General Public License (LGPL). This means that you can link Racket into proprietary applications, provided you follow the rules stated in the LGPL. You can also modify Racket; if you distribute a modified version, you must distribute it under the terms of the LGPL, which in particular means that you must release the source code for the modified software. See doc/release-notes/COPYING.txt for more information.