[Bug libc/17401] New: globbing not consistent for unterminated `[' match

[Bug libc/17401] New: globbing not consistent for unterminated `[' match

[33user at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=17401

            Bug ID: 17401
           Summary: globbing not consistent for unterminated `[' match
           Product: glibc
           Version: 2.19
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
          Assignee: unassigned at sourceware dot org
          Reporter: 33user at gmail dot com
                CC: drepper.fsp at gmail dot com

for example: the pattern "[[" does not match "[[", but the pattern "[z" matches
"[z".

Anotehr example: the pattern "[z[" does not match "[z[" but "[zw" matche "[zw".

the key is, that we tentatively interpret the starting [ as a bracket
match...and then if we find a match from one of the characters after the
opening bracket, we conclude (too early?) that this is a bracket match, and
therefore, when no terminating ] was found, we give up..

whereas, where we still didn't find a match, and we continue to scan the
pattren and reach the terminating null byte, we retract and interpret the whole
pattern as a normal pattern (i.e. not a bracket)..and therefore [[ for exmaple
matches [[ and [zw matches [zw...

again, this is a verbose "interpretation" for the source code...how it decides
where when to retract or not...but it still looks buggy

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[Bug glob/17401] globbing not consistent for unterminated `[' match

[jsm28 at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=17401

Joseph Myers <jsm28 at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|libc                        |glob

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