| commit | 350b87cd658553598a269fdd320ca05ee4789a10 | [log] [tgz] |
|---|---|---|
| author | Johannes Sixt <j6t@kdbg.org> | Fri Oct 08 19:09:55 2021 +0000 |
| committer | Junio C Hamano <gitster@pobox.com> | Fri Oct 08 13:04:07 2021 -0700 |
| tree | 06a7cd33e6eab78d7d3ca4bffaf9b8956791384f | |
| parent | 3e063de46e6270606e058b96bfcc0baebc4aea81 [diff] |
userdiff-cpp: tighten word regex Generally, word regex can be written such that they match tokens liberally and need not model the actual syntax because it can be assumed that the regex will only be applied to syntactically correct text. The regex for cpp (C/C++) is too liberal, though. It regards these sequences as single tokens: 1+2 1.5-e+2+f and the following amalgams as one token: .l as in str.length .f as in str.find .e as in str.erase Tighten the regex in the following way: - Accept + and - only in one position in the exponent. + and - are no longer regarded as the sign of a number and are treated by the catcher-all that is not visible in the driver's regex. - Accept a leading decimal point only when it is followed by a digit. For readability, factor hex- and binary numbers into an own term. As a drive-by, this fixes that floating point numbers such as 12E5 (with upper-case E) were split into two tokens. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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