# metacharacters, backslashes
a.c & abc abc
a[bc]d & abd abd
a\*c & a*c a*c
a\\b & a\b a\b
a\\\*b & a\*b a\*b
a\bc & abc abc
a\ &C EESCAPE
a\\bc & a\bc a\bc
\{ bC BADRPT
a\[b & a[b a[b
a[b &C EBRACK
# trailing $ is a peculiar special case for the BRE code
a$ & a a
a$ & a$
a\$ & a
a\$ & a$ a$
a\\$ & a
a\\$ & a$
a\\$ & a\$
a\\$ & a\ a\