Versium
Description: Versium: Diff functions
Keywords: lua, diff

Diff functions

Overview · Installation · Contact · LuaDoc · License

# Overview↑

This module provides a small collection of functions for diffing text.

# Installation↑

The Diff library consists of a single file (diff.lua), plus a test script (tests/basic.lua). Just put the file somewhere in your Lua path. Here is a list of recent releases:

- Versium-8.06.15 - the initial release (June 15, 2008)

You can also install it using LuaRocks with

    luarocks install diff

or:

    luarocks --from=http://sputnik.freewisdom.org/rocks/earth install diff

# Contact↑

Please contact Yuri Takhteyev (yuri -at- freewisdom.org) with any questions.

# LuaDoc↑

## diff Provides functions for diffing text. (c) 2007, 2008 Yuri Takhteyev (yuri@freewisdom.org) (c) 2007 Hisham Muhammad License: MIT/X, see http://sputnik.freewisdom.org/en/License
diff() | Returns a diff of two strings as a list of pairs, where the first value represents a token and the second the token's status ("same", "in", "out"). old: The "old" text string new: The "new" text string separator: [optional] the separator pattern (defaults ot any white space). Returns: A list of annotated tokens.
escape_html() | Escapes an HTML string. text: The string to be escaped. Returns: Escaped string.
format_as_html() | Formats an inline diff as HTML, with and tags. tokens: a table of {token, status} pairs. Returns: an HTML string.
quick_LCS() | Derives the longest common subsequence of two strings. t1: the first string. t2: the second string. Returns: the least common subsequence as a matrix.
split() | Split a string into tokens. text: A string to be split. separator: [optional] the separator pattern (defaults to any white space - %s+). skip_separator: [optional] don't include the sepator in the results. Returns: A list of tokens.

# License↑

Copyright (c) 2007, 2008 Yuri Takhteyev

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.