expr: fix substr parsing #8158
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expr: fix substr parsing #8158
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Fixes #8063
Changed parsing of
expr substrarguments, so they have a higher precedence than whatever follows. Before those changes the parser was too eager and gave incorrect results whenexpr substrarguments were followed by bash conditional ("!="). The script used to reproduce the issue now gives the correct result.Looking forward to feedback for this short PR :)
Fixes for
index,length,matchwill come, if actually needed, in future PR(s).