This repository includes diff related tools including sdif, cdif, and watchdiff commands. These works as a post-processor for diff command to support visualizing the output.

They can be used along with git command and provide convenient output for ANSI color terminals.

sdif and cdif are tuned to handle Asian multi-byte characters, especially Japanese text. There are some other tools which provide similar capability, but most of them are not appropriate to process document data. cdif provide word-by-word difference rather than character-by-character, which make the output much easy to read. It also support a mecab command as a syllable tokenizer.

CONTENTS

Tools

Images

Repository

NAME

App::sdif - sdif and family tools, cdif and watchdiff

SYNOPSIS

sdif f1 f2

diff -c f1 f2 | cdif

git diff | sdif -n

watchdiff df

DESCRIPTION

sdif-tools is composed of sdif and related tools including cdif and watchdiff.

sdif prints diff output in side-by-side format.

cdif adds visual effects to diff output, comparing lines word by word or character by character.

watchdiff calls a command repeatedly, and prints its output with visual effects to emphasize the modified part.

See the manual of each command for details.

INSTALL

$ cpanm App::sdif

GIT

These are sample configurations for using the sdif family under git. The mecab command has to be installed to use the –mecab option.

~/.gitconfig
    [pager]
        log  = sdif | less
        show = sdif | less
        diff = sdif | less

~/.sdifrc
    option default -n --margin=4

~/.cdifrc
    option default --mecab

~/.profile
    export LESS="-cR"
    export LESSANSIENDCHARS="mK"

Everything can be written in ~/.gitconfig instead:

[pager]
    log  = sdif -n --margin=4 --mecab | env LESSANSIENDCHARS=mK less -cR
    show = sdif -n --margin=4 --mecab | env LESSANSIENDCHARS=mK less -cR
    diff = sdif -n --margin=4 --mecab | env LESSANSIENDCHARS=mK less -cR

SEE ALSO

sdif, cdif, watchdiff

Getopt::EX

AUTHOR

Kazumasa Utashiro

LICENSE

Copyright 1992- Kazumasa Utashiro.

These commands and libraries are free software; you can redistribute it and/or modify it under the same terms as Perl itself.