skel2c

yacc源码

BEGIN { havesection = 0;
	nsec = 0;
	printf  "/*\n** This file generated automatically from %s\n*/\n\n",
		FILENAME; 
	printf "#include \"defs.h\"\n";
      }
/^%%/ { if (havesection) {
	    printf "    0\n};\n\n";
	}
	if (NF >= 2) {
	    havesection = 1;
	    section = $2;
	    seclist[nsec] = section;
	    nsec = nsec + 1;
	    printf "char *%s[] =\n{\n", $2;
	    printf "    \"#line %d \\\"%s\\\"\",\n", FNR+1, FILENAME; 
	} else {
	    havesection = 0;
	}
	next; 
      }
      { if (havesection) {
	    gsub(/\\/, "\\\\");
	    gsub(/\t/, "\\t");
	    gsub(/\"/, "\\\"");
	    printf "    \"%s\",\n", $0; 
        } else {
	    print $0; 
        }
      }
END   { if (havesection) {
            printf "    0\n};\n\n"; 
	}
	if (nsec > 0) {
	    printf "struct section section_list[] = {\n";
	    for (i=0; i<nsec; i++)
		printf "\t{ \"%s\", &%s[0] },\n", seclist[i], seclist[i];
	    printf "\t{ 0, 0 } };\n"
	}
      }