Dotnet add package Diff.Match.Patch --version 2.1.0 paket add Diff.Match.Patch --version 2.1.0 The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Comparing must work on-the-fly, so this must be done via javascript or with php (will make javascript ajax request). What I need is probably advanced difference showing, so it will be probably best if there is any kind of good supported library. This picture shows exactly what I need >Added #1: I found this (example ) which is ok, but doesn't support multiline? And it changes the whole word when only one character is different. Added #2: I tested php script ( ) but it has flaws.

Added #3: I found what i was looking for ( ).

I've been looking like crazy for an explanation of a diff algorithm that works and is efficient. The closest I got is (from several Eric Sink blog posts), which describes in perfectly understandable terms the data format in which the diff results are stored.

However, it has no mention whatsoever as to how a program would reach these results while doing a diff. I'm trying to research this out of personal curiosity, because I'm sure there must be tradeoffs when implementing a diff algorithm, which are pretty clear sometimes when you look at diffs and wonder 'why did the diff program chose this as a change instead of that?' Download Free Software Hp Deskjet 3050a.

Where can I find a description of an efficient algorithm that'd end up outputting VCDIFF? By the way, if you happen to find a description of the actual algorithm used by SourceGear's DiffMerge, that'd be even better.

NOTE: longest common subsequence doesn't seem to be the algorithm used by VCDIFF, it looks like they're doing something smarter, given the data format they use. Is a fantastic paper and you may want to start there.

It includes pseudo-code and a nice visualization of the graph traversals involved in doing the diff. Section 4 of the paper introduces some refinements to the algorithm that make it very effective. Successfully implementing this will leave you with a very useful tool in your toolbox (and probably some excellent experience as well). Hp 1060 Printer Drivers Download there. Generating the output format you need can sometimes be tricky, but if you have understanding of the algorithm internals, then you should be able to output anything you need.

You can also introduce heuristics to affect the output and make certain tradeoffs. That includes a bit of documentation,, and examples of a diff algorithm using the techniques in the aforementioned algorithm. The appears to follow the basic algorithm closely and is easy to read. There's also a bit on preparing the input, which you may find useful. There's a huge difference in output when you are diffing by character or token (word). I would begin by looking at the actual source code for diff, which GNU makes.

For an understanding of how that source code actually works, the docs in that package reference the papers that inspired it: The basic algorithm is described in 'An O(ND) Difference Algorithm and its Variations', Eugene W. Myers, 'Algorithmica' Vol. 251-266; and in 'A File Comparison Program', Webb Miller and Eugene W. Myers, 'Software--Practice and Experience' Vol. 11, 1985, pp. The algorithm was independently discovered as described in 'Algorithms for Approximate String Matching', E. Ukkonen, `Information and Control' Vol.

64, 1985, pp. Reading the papers then looking at the source code for an implementation should be more than enough to understand how it works. Hmmm, in short, sometimes figuring out the underlying algorithm from actual source code (especially if it's optimized to be efficient) can be quite complex. I will be able to understand what the program is doing step by step, but not exactly 'why', or a high level overview about that. Example: You'd never understand how regular expressions work (or what they are) by looking at the implementation of Perl's Regexes.

Or if you could do that, then I tip my hat, I definitely need a more explained, higher level overview to figure out what's going on. – Apr 30 '09 at 6:43 •.