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authorLibravatar Junio C Hamano <gitster@pobox.com>2014-09-03 12:42:37 -0700
committerLibravatar Junio C Hamano <gitster@pobox.com>2014-09-04 11:00:28 -0700
commitaf465af8deda8ad685f7704a2dc787845eb317ed (patch)
tree198dbc1cf316f415b5e2dd7e7b09f3c228f6f750 /Documentation/manpage-base.xsl
parentGit 2.0.4 (diff)
downloadtgif-af465af8deda8ad685f7704a2dc787845eb317ed.tar.xz
parse-options: detect attempt to add a duplicate short option name
It is easy to overlook an already assigned single-letter option name and try to use it for a new one. Help the developer to catch it before such a mistake escapes the lab. This retroactively forbids any short option name (which is defined to be of type "int") outside the ASCII printable range. We might want to do one of two things: - tighten the type of short_name member to 'char', and further update optbug() to protect it against doing "'%c'" on a funny value, e.g. negative or above 127. - drop the check (even the "duplicate" check) for an option whose short_name is either negative or above 255, to allow clever folks to take advantage of the fact that such a short_name cannot be parsed from the command line and the member can be used to store some extra information. Helped-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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