Fix UTF-8 seek/tell positioning during binary file lookup
维护者通常 1 天内回复
还没有人认领这个 Issue。
评估
调研方向
Start with the existing UTF-8 seek audit and reproduce the failures in t/lookup.t and t/personalized.t. Trace the seek/tell and readline interaction used by Search::Dict::look on a larger UTF-8 file with a multibyte character before the lookup. Done means the regression passes on both JVM and interpreter backends and the affected upstream tests report all 9 tests passing.
由索引模型根据 Issue 内容生成。
描述
Summary
Data::Password::Common 0.004 fails its upstream test suite on PerlOnJava, while the same suite passes completely under system Perl.
Reproduction
CPAN compatibility run: 20260924-085657-82687
Distribution: Data-Password-Common-0.004
Observed result:
Files=3, Tests=9, 11 wallclock secs
Result: FAIL
Failed 2/3 test programs. 5/9 subtests failed.
The failures are:
t/lookup.t:passwordand!"£$%^are incorrectly reported as absent.t/personalized.t:passwordis incorrectly absent from both the built-in and custom lists, andstupid1is incorrectly absent from the built-in list.
The ordinary system-Perl oracle passes all 9 tests. The failure reproduces on both the JVM and interpreter backends.
Root cause evidence
Data::Password::Common opens its password list with the :utf8 layer and calls Search::Dict::look, which performs byte-offset binary searches using seek and then reads a line.
With the custom ASCII-list test:
- system Perl positions at byte offset
2369and readspassword; - PerlOnJava positions at byte offset
2372and readssword.
The input file contains multibyte UTF-8 characters before the searched entry. This indicates an encoded-file buffering/positioning parity bug in the interaction between seek/tell and subsequent readline/binary-search operations. It is not a missing dependency, timeout, native-module, or upstream test issue.
The basic UTF-8 seek audit currently passes, so a regression test should cover a larger UTF-8 file with a multibyte character before a Search::Dict-style binary lookup.
Scope
Both execution backends are affected. Existing labels bug, area:io, area:unicode, and area:backend are applicable.
- 主要语言
- Perl
- 星标
- 64
- 派生
- 6
- 平均合并
- 4 小时 55 分钟
- 30 天内合并 PR
- 169
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- 提供 Dockerfile 或 Docker Compose 文件
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fglock/PerlOnJava 的其他 Issue
-
area:cpan-port area:unicode bug
难度 2/5 1-3 小时 新手友好度 88/100
fglock/PerlOnJava#1341 ·
维护者通常 1 天内回复
-
area:cpan-port area:regex area:unicode bug
难度 4/5 3-5 天 新手友好度 52/100
fglock/PerlOnJava#1556 ·
维护者通常 1 天内回复
-
area:backend area:runtime bug
难度 3/5 1-2 天 新手友好度 68/100
fglock/PerlOnJava#1554 ·
维护者通常 1 天内回复
-
area:cpan-port area:runtime bug
难度 3/5 1-2 天 新手友好度 55/100
fglock/PerlOnJava#1552 ·
维护者通常 1 天内回复
-
area:backend area:cpan-port bug
难度 4/5 3-5 天 新手友好度 48/100
fglock/PerlOnJava#1548 ·
维护者通常 1 天内回复
查看 fglock/PerlOnJava 的全部 Issue
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