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sh_setenviron(): deactivate compound assignment prefix

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Reproducers:

$ ksh -c 'typeset -a arr=( ( (a $(($(echo 1) + 1)) c)1))'
ksh: echo: arr[0]._AST_FEATURES=CONFORMANCE - ast UNIVERSE - ucb: cannot be an array
ksh: [1]=1: invalid variable name
$ ksh -c 'typeset -a arr=( (a $(($(echo 1) + 1)) c)1)'
ksh: echo: arr._AST_FEATURES=CONFORMANCE - ast UNIVERSE - ucb: is not an identifier
ksh: [1]=1: invalid variable name

src/cmd/ksh93/sh/name.c: sh_setenviron():
- Save and clear the current compound assignment prefix (sh.prefix)
  while assigning to the _AST_FEATURES variable.
This commit is contained in:
Martijn Dekker 2022-06-22 17:02:25 +01:00
parent 4d50b69cbd
commit d8dc2a1d81
4 changed files with 19 additions and 1 deletions
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2
src/cmd/ksh93/include/version.h
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@ -23,7 +23,7 @@
#define SH_RELEASE_FORK "93u+m" /* only change if you develop a new ksh93 fork */
#define SH_RELEASE_SVER "1.0.0-beta.2" /* semantic version number: https://semver.org */
#define SH_RELEASE_DATE "2022-06-20" /* must be in this format for $((.sh.version)) */
#define SH_RELEASE_DATE "2022-06-22" /* must be in this format for $((.sh.version)) */
#define SH_RELEASE_CPYR "(c) 2020-2022 Contributors to ksh " SH_RELEASE_FORK
/* Scripts sometimes field-split ${.sh.version}, so don't change amount of whitespace. */