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read -S now correctly handles nested double quotes

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Prior to this bugfix, the following set of commands would
fail to print two double quotes:

IFS=',' read -S a b c <<<'foo,"""title"" data",bar'
echo $b

This fix is from ksh93v- 2013-10-10-alpha, although it has
been revised to use stakputc to put the required double quote
into the buffer for consistency with the ksh93u+ codebase.

src/cmd/ksh93/bltins/read.c:
 - When handling nested double quotes, put the required double
   quote in read's buffer with stakputc.

src/cmd/ksh93/tests/builtins.sh:
 - Add the regression test for `read -S` from ksh93v-.

src/cmd/ksh93/sh.1:
 - Fix a minor formatting error to highlight '-S' in the ksh(1)
   man page.
This commit is contained in:
Johnothan King 2020-06-14 09:28:22 -07:00
parent 5498d9ec25
commit af0bd6ad70
5 changed files with 21 additions and 3 deletions
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@ -3,6 +3,10 @@ For full details, see the git log at: https://github.com/ksh93/ksh
Any uppercase BUG_* names are modernish shell bug IDs.
2020-06-14:
- 'read -S' is now able to correctly handle strings with double quotes
nested inside of double quotes.
2020-06-13:
- Fixed a timezone name determination bug on FreeBSD that caused the