RAA - docdiff

DocDiff compares two files and shows the difference. It can compare files word by word, char by char, or line by line. It has several output formats such as HTML, tty, Manued, or user-defined markup.

It supports several encodings and end-of-line characters, including ASCII, UTF-8, EUC-JP, Shift_JIS, CR, LF, and CRLF.

Requirements:
Ruby (Tested with Ruby 1.8/i386-linux, 1.8/Cygwin)
(Note that you may need additional ruby library such as iconv and uconv, if your OS's Ruby package does not include those.)

News for 0.3.2 (2005-01-03)

* Readme is multilingualized (added partial Japanese translation). Try switching CSS between en and ja. Monolingual files are also available (readme.en.html, readme.ja.html).
* Outputs better error messages when it failed to auto-detect the encoding and/or eol, though the accuracy is the same.
* Switched revision control system from CVS to Subversion.