EAT 209 regex/regcomp.c if (!EAT('|'))
EAT 355 regex/regcomp.c if (EAT(',')) {
EAT 364 regex/regcomp.c if (!EAT('}')) { /* error heuristics */
EAT 417 regex/regcomp.c if (EAT('^')) {
EAT 525 regex/regcomp.c if (EAT('*')) { /* implemented as +? */
EAT 533 regex/regcomp.c if (EAT(',')) {
EAT 600 regex/regcomp.c if (EAT('^'))
EAT 602 regex/regcomp.c if (EAT(']'))
EAT 604 regex/regcomp.c else if (EAT('-'))
EAT 608 regex/regcomp.c if (EAT('-'))
EAT 703 regex/regcomp.c if (EAT('-'))