Opened 8 months ago
Last modified 8 months ago
#1835 reopened defect
Error in the utf8 egg's substring=?
Reported by: | siiky | Owned by: | siiky |
---|---|---|---|
Priority: | major | Milestone: | someday |
Component: | extensions | Version: | 5.4.0 |
Keywords: | utf8 | Cc: | |
Estimated difficulty: |
Description
First found it using tab-completion in csi
:
Error: (substring=?) out of range 3 0 3 Call history: utf8-srfi-13.scm:374: proc utf8-srfi-13.scm:374: proc utf8-srfi-13.scm:374: proc utf8-srfi-13.scm:374: proc utf8-srfi-13.scm:374: proc utf8-srfi-13.scm:374: proc utf8-srfi-13.scm:374: proc utf8-srfi-13.scm:374: proc utf8-srfi-13.scm:374: proc utf8-srfi-13.scm:374: proc utf8-srfi-13.scm:374: proc utf8-srfi-13.scm:374: proc utf8-srfi-13.scm:374: proc utf8-srfi-13.scm:374: proc utf8-srfi-13.scm:374: proc utf8-srfi-13.scm:374: proc <--
This is seen in the egg's tests as well: http://salmonella-linux-x86.call-cc.org/master/clang/linux/x86/2024/04/11/salmonella-report/test/utf8.html (chicken-install
's exit code is 0, I'm not seeing why -- there's a test-begin
at the top and a test-end
at the bottom -- though this is another problem):
(string-prefix? "元麻布" "麻布十番" 1) ........................ [ERROR] Error: (substring=?) out of range 6 0 6 (string-prefix? "元麻布" "麻" 1 2) ............................... [ERROR] Error: (substring=?) out of range 3 0 3
It's almost certain these errors are related to the recent changes made to substring=?
and friends: https://code.call-cc.org/cgi-bin/gitweb.cgi?p=chicken-core.git;a=commit;h=0e97b648407d750f1e476e3c193e136126558346
Change History (2)
comment:1 Changed 8 months ago by
Resolution: | → fixed |
---|---|
Status: | assigned → closed |
comment:2 Changed 8 months ago by
Resolution: | fixed |
---|---|
Status: | closed → reopened |
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(substring=? "" "" 0 0 0)
results in a range error too. Sorry I forgot to update this ticket the other day.I believe the problem is in the lines
(##sys#check-range start1 0 (##sys#size s1) 'substring=?)
, when the string is empty -- it amounts to(##sys#check-range 0 0 0 'substring=?)
.I can't tell what the obvious fix is, if there is one. Return
#t
if one of the strings is empty?