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I ran into some surprising output one of the first times I used ccdiff after getting back to work this week:
- <ds:KeyName>foo.work.se</ds:KeyName> - ^^^^^^^ ^^^ ^^^^^^^^^ - <ds:KeyName>splat.work.se</ds:KeyName> - ^^^^^^^^^^^^^^^^^^^^^^^^ + <ds:KeyName>foo-test.work.se</ds:KeyName> + ^^
Took me a minute to figure out that it was seeing the diff as "up to 'foo' from the first line, then insert '-t', grab an 'e' and an 's' from later in the first line, and finally take everything starting with 't' on the second line" rather than "insert '-test' on the first line and drop the second line entirely".

Probably another good case for a "percentage of changed characters is over x%" check.


In reply to Re: When not to use subdiff by dsheroh
in thread When not to use subdiff by Tux

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