rubygem-docdiff

Compares two text files by word, by character, or by line

DocDiff compares two text files and shows the difference. It can compare files word by word, character by character, 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 (and other single byte encodings such as ISO-8859-*), UTF-8, EUC-JP, Shift_JIS, CR, LF, and CRLF.