| commit | 94c424fb2c3688f48c3236f3fc6d4d2522ed6cd0 | |
| author | Thomas Sibley <trsibley@uw.edu> | |
| Wed, 7 May 2014 23:11:02 +0000 (7 16:11 -0700) | ||
| committer | Thomas Sibley <trsibley@uw.edu> | |
| Wed, 7 May 2014 23:19:38 +0000 (7 16:19 -0700) | ||
| tree | a3f2d70087f93e127be3260ba3f5713f29fa0931 | treesnapshot (tar.gz zip) |
| parent | 5451e4d592a39020178c6c1ff575dd07e35fcce8 | commitdiff |
Only return true values and undef from READLINE in scalar context
The common readline idiom
while (<$in>)
checks defined-ness and doesn't work as expected when defined-but-false
values such as 0 or the empty string are returned. Since these are tied
objects mocking filehandles which deal in records not strings, returning
0 or "" is never expected or desired.
This is a guard against bugs such as those in 5451e4d.
The common readline idiom
while (<$in>)
checks defined-ness and doesn't work as expected when defined-but-false
values such as 0 or the empty string are returned. Since these are tied
objects mocking filehandles which deal in records not strings, returning
0 or "" is never expected or desired.
This is a guard against bugs such as those in 5451e4d.