SCM_SYM_EOL       333 src/regexp.c       case '$': return SCM_SYM_EOL;
SCM_SYM_EOL      1061 src/regexp.c               if (SCM_EQ(ast, SCM_SYM_EOL)) {
SCM_SYM_EOL      1529 src/regexp.c           if (SCM_EQ(ast, SCM_SYM_BOL) || SCM_EQ(ast, SCM_SYM_EOL)