LineCache - Module to read and cache lines of a file

Summary

require 'linecache'
lines = LineCache::getlines('/tmp/myruby.rb')
# The following lines have same effect as the above.
$: << '/tmp'
Dir.chdir('/tmp') {lines = LineCache::getlines('myruby.rb')

line = LineCache::getline('/tmp/myruby.rb', 6)
# Note lines[6] == line (if /tmp/myruby.rb has 6 lines)

LineCache::clear_file_cache
LineCache::clear_file_cache('/tmp/myruby.rb')
LineCache::update_cache   # Check for modifications of all cached files.

Credits

This is a port of the module of the same name from the Python distribution.

The idea for how TraceLineNumbers works, and some code was taken
from ParseTree by Ryan Davis.

Other stuff

Author

Rocky Bernstein <[email protected]>

License

Copyright © 2007, 2008 Rocky Bernstein Released under the GNU GPL 2 license

Warranty

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

$Id: README 63 2008-03-04 22:47:26Z rockyb $