CHAR_UNDERSCORE   174 ext/pcre/pcrelib/pcre_compile.c      CHAR_CIRCUMFLEX_ACCENT,  CHAR_UNDERSCORE,
CHAR_UNDERSCORE  2873 ext/pcre/pcrelib/pcre_compile.c           c == CHAR_UNDERSCORE) == negated;
CHAR_UNDERSCORE  2617 ext/pcre/pcrelib/pcre_exec.c              c == CHAR_UNDERSCORE) == (op == OP_NOTPROP))
CHAR_UNDERSCORE  4292 ext/pcre/pcrelib/pcre_exec.c             if ((category == ucp_L || category == ucp_N || c == CHAR_UNDERSCORE)
CHAR_UNDERSCORE  5045 ext/pcre/pcrelib/pcre_exec.c                  c == CHAR_UNDERSCORE)
CHAR_UNDERSCORE  5554 ext/pcre/pcrelib/pcre_exec.c                  c == CHAR_UNDERSCORE) == prop_fail_result)
CHAR_UNDERSCORE  4165 ext/pcre/pcrelib/pcre_jit_compile.c   jump = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_UNDERSCORE);
CHAR_UNDERSCORE  4209 ext/pcre/pcrelib/pcre_jit_compile.c   jump = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_UNDERSCORE);
CHAR_UNDERSCORE  5123 ext/pcre/pcrelib/pcre_jit_compile.c       OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(CHAR_UNDERSCORE - charoffset));
CHAR_UNDERSCORE   188 ext/pcre/pcrelib/pcre_xclass.c            PRIV(ucp_gentype)[prop->chartype] == ucp_N || c == CHAR_UNDERSCORE)