xref: /aosp_15_r20/external/one-true-awk/testdir/t.substr (revision 9a7741de182b2776d7b30d6355f2585c0780a51b) 
1substr($2, 1, 1) ~ /[abc]/
2substr($2, length($2)) !~ /[a-z]/
3substr($2, length($2)) ~ /./
4