BUF_PUSH_2       2697 regex.cpp                    BUF_PUSH_2 (syntaxspec, syntax_spec_code[c]);
BUF_PUSH_2       2703 regex.cpp                    BUF_PUSH_2 (notsyntaxspec, syntax_spec_code[c]);
BUF_PUSH_2       2775 regex.cpp                    BUF_PUSH_2 (duplicate, c1);
BUF_PUSH_2       2823 regex.cpp      	      BUF_PUSH_2 (exactn, 0);