grep - Bugs: bug #23936, grep with "near" and...
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bug #23936: grep with "near" and "far-from" support
Submitter: | None | ||
Submitted: | Fri 25 Jul 2008 07:34:23 PM UTC | ||
Category: | None | Severity: | 1 - Wish |
Item Group: | None | Status: | None |
Privacy: | Public | Assigned to: | None |
Open/Closed: | Open |
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Depends on the following items: None found
Items that depend on this one: None found
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Follows 1 latest change.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
---|---|---|---|---|---|
2009-12-04 | bonzini | Severity | 3 - Normal | 1 - Wish |
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It'd be really nice if grep could also search context. In my case, I'm looking for USING with JOIN nearby. I'm adapting SQL code that is about to be converted from MySQL 4 to MySQL 5, but I need to clarify USING's.
I'd like to be able to do this:
grep -niR using --nearby-match=join --nearby-lines-before=3
I can also see how it'd be useful to look for strings that are "far from" other strings (the --far-from string is not found in the context described in the --far-from-lines list)
I suggest the following new parameters:
--far-from=<match string> Requires that match string is not in
nearby context.
--near=<match string> Requires the match string in nearby
context
--near-lines=<n> Sets nearby context to the matching
line and the n lines before and
after.
--near-lines-before=<n> Works like --context-before
specifically for nearby matches.
--near-lines-after=<n> As above, but after.
--near-expands-context Context display expanded to include
nearby matches (treats nearby matches
as the match line).
On implementation - I think it'd be pretty easy to recursively grep primary match strings for near and far matches to determine if a primary match meets follow-up criteria.