fix(expansion): handle mixed literal+quoted var in ${var#pattern}#1250
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fix(expansion): handle mixed literal+quoted var in ${var#pattern}#1250
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${var#./"$other"} failed because double quotes in operands were kept
as literal characters. Add strip_operand_quotes() to remove unescaped
double quotes from operand strings before expansion. Use NUL sentinel
in lexer for escaped quotes (\") inside ${...} to distinguish literal
quotes from quoting markers.
Closes #1161
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Summary
${var#./"$other_var"}now correctly strips the prefix when the pattern mixes literals and quoted variablesstrip_operand_quotes()to remove unescaped double quotes from operand strings before expansion\") inside${...}to distinguish literal"from quoting"Test plan
${i#./"$prefix_tags"}correctly strips./tag_prefixcargo clippycleanCloses #1161