the -b here should cause implicit anchoring. instead it cases re_is_literal() to categorise the regex as not a literal:
; ./build/bin/re -br pcre -t 'a[b]c{1}'
; echo $?
1
;
; ./build/bin/re -br pcre -t '^a[b]c{1}\z'
; echo $?
1
;
correctly:
; ./build/bin/re -r pcre -t '^a[b]c{1}\z'
anchors: ^$
literal: abc
; echo $?
0
;
the -b here should cause implicit anchoring. instead it cases re_is_literal() to categorise the regex as not a literal:
correctly: