JS_COMPACTOR(1) User Contributed Perl Documentation JS_COMPACTOR(1)NAMEjs_compactor - Command line utility to reduce JavaScript code to as few
characters as possible.
USAGEjs_compactor -src=source_file [OPTIONS]
SYNOPSISjs_compactor [--src=source_file] [--dest=destination_file] [--opt]
[--comment_exception=text] [--remove_comments] [--replace_white_space]
[--remove_blank_lines] [--combine_concats] [--join_all]
[--replace_extra_whitespace] [--no_remove_comments]
[--no_replace_white_space] [--no_remove_blank_lines]
[--no_combine_concats] [--no_join_all] [--no_replace_extra_whitespace]
[--force] [--help]
DESCRIPTION
The "--src" option is required.
Default usage is as though you specified "--opt", for optimal settings.
Setting any of the specific settings will override the default "--opt"
behavior, and rules will be applied one by one. You may also specify
"--opt" and then disable specific features with a "--no_option_name"
style option.
--src=filename
The source javascript filename. (REQUIRED)
--dest=filename
The destination file. Defaults to output to STDOUT.
--force
Force overwriting of output file if it exists.
--opt
Same as --remove_comments --replace_white_space
--remove_blank_lines --combine_concats --join_all
--replace_extra_whitespace
--comment_exception=text_to_match
Comments matching the provided text will NOT be removed. The
primary purpose for this is to retain copyright notices. Eg.
js_compactor --comment_exception=copyright -src=somefile
This option may be specified multiple times. Any comment matching
any of the provided strings will then be retained.
It uses a case insenstive regexp for the match. This option has no
effect if --no_remove_comments is specified.
--remove_comments | --no_remove_comments
Remove all comments from the source.
--replace_white_space | --no_replace_white_space
Per each line:
· Removes all begining of line whitespace.
· Removes all end of line whitespace.
· Combined all series of whitespace into one space character (eg.
s/\s+/ /g)
Comments and string literals (if still embeded) are untouched.
--remove_blank_lines | --no_remove_blank_lines
Blank lines in code are removed.
--combine_concats | --no_combine_concats
Removes any string literal concatenations. Eg.
"bob and " + "sam " + someVar;
Becomes:
"bob and sam " + someVar
--join_all | --no_join_all
Put everything on one line (retained comments may still contain new
lines).
--replace_extra_whitespace | --no_replace_extra_whitespace
This removes any excess whitespace. Eg.
if (someVar = "foo") {
Becomes:
if(someVar="foo"){
EXAMPLES
The normal use is probably just for one off squishings:
js_compactor --src=input_file > new_file.js
If you're squishing something with a copyright, it is recommended that
you retain that copyright:
js_compactor --comment_exception=copyright --src=input_file > new_file.js
If you want the code to still be somewhat readable, it is often helpful
to retain all the line breaks:
js_compactor--opt --no_join_all --comment_exception=copyright --src=input_file > new_file.js
SEE ALSO
JavaScript::Squish
BUGS
Please refer to http://developer.berlios.de/projects/jscompactor/ to
report bugs.
AUTHOR
Joshua I. Miller <jmiller@puriifeddata.net>
COPYRIGHT AND LICENSE
Copyright (c) 2005 by CallTech Communications, Inc.
This library is free software; you can redistribute it and/or modify it
under the same terms as Perl itself, either Perl version 5.8.3 or, at
your option, any later version of Perl 5 you may have available.
perl v5.20.2 2008-03-16 JS_COMPACTOR(1)
