[RFC] trim.el -- Functions to delete extra whitespace

[Jari Aalto <jari.aalto@cante.net>]

I'd lke to suggest adding trim.el to the distribution. It provides
handy functions to fix buffer's/region's whitespace problems.

The code is GPL

Jari

    http://xemacs.seanm.ca/lisp/trim.el

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trim                                    Function:
Searches for `regexp' and deletes any matches.
If optional arg `replace' is set, it replaces the match.
If the region is active, only trims the lines in the region.

trim-lines                              Function:
Trim whitespace (including CR) from the ends of all lines.
If the region is active, only trims the lines in the region.

trim-empty-lines                        Function:
Trim all empty lines.
An empty line is a line with only whitespace (space, tab, CR) characters.
If the region is active, only trims the lines in the region.

trim-spaces                             Function:
Trim all sequences of spaces to one space.
If the region is active, only trims the lines in the region.

trim-leading-spaces                     Function:
Trim all white space at the starts of lines.
If the region is active, only trims the lines in the region.

trim-defines                            Function:
Trim `#define' lines to isolate the `identifier'.
If the region is active, only trims the lines in the region.

untrim-lines                            Function:
Add ^M to the end of all lines.
If the region is active, only untrims the lines in the region.