diff_nwiki.php File Reference

Class used internally by Diff to actually compute the diffs. More...

Classes
class	_WikiDiffEngine
class	_WikiDiffOp
class	_WikiDiffOp_Add
class	_WikiDiffOp_Change
class	_WikiDiffOp_Copy
class	_WikiDiffOp_Delete
class	_WikiHWLDF_WordAccumulator
class	MappedWikiDiff
	FIXME: bad name. More...
class	TableWikiDiffFormatter
	@TODO: Doc this class More...
class	TableWikiDiffFormatterOld
	Wikipedia Table style diff formatter. More...
class	WikiDiff
	Class representing a 'diff' between two sequences of strings. More...
class	WikiDiffFormatter
	A class to format WikiDiffs. More...
class	WordLevelWikiDiff

Variables
const	NBSP ' '
	Additions by Axel Boldt follow, partly taken from diff.php, phpwiki-1.3.3.
const	USE_ASSERTS_IN_WIKI function_exists('assert')

Detailed Description

Class used internally by Diff to actually compute the diffs.

The algorithm used here is mostly lifted from the perl module Algorithm::Diff (version 1.06) by Ned Konz, which is available at: http://www.perl.com/CPAN/authors/id/N/NE/NEDKONZ/Algorithm-Diff-1.06.zip

More ideas are taken from: http://www.ics.uci.edu/~eppstein/161/960229.html

Some ideas are (and a bit of code) are from from analyze.c, from GNU diffutils-2.7, which can be found at: ftp://gnudist.gnu.org/pub/gnu/diffutils/diffutils-2.7.tar.gz

closingly, some ideas (subdivision by NCHUNKS > 2, and some optimizations) are my own.

Author

Geoffrey T. Dairiki