text: /* $Id: genmacro.c 1827 2007-04-22 05:09:49Z peter $
   *
   * C version of NASM's macros.pl
   *
   *  Copyright (C) 2004-2007  Peter Johnson
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND OTHER CONTRIBUTORS ``AS IS''
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR OTHER CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   */
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  
  #define OUTPUT  "nasm-macros.c"
  #define MAXLINE 1024
  
  int
  main(int argc, char *argv[])
  {
      FILE *in, *out;
      int i;
      char *str;
      char *strp;
      char *charp;
      int fline;
      int line = 0;
      int lindex = 0;
      int tasm_count = -1;
      size_t len;
  
      if (argc < 2) {
          fprintf(stderr, "Usage: %s <file> [<file> ...]\n", argv[0]);
          return EXIT_FAILURE;
      }
  
      out = fopen(OUTPUT, "wt");
  
      if (!out) {
          fprintf(stderr, "Could not open `%s'.\n", OUTPUT);
          return EXIT_FAILURE;
      }
  
      str = malloc(MAXLINE);
  
      fprintf(out, "/* This file auto-generated from standard.mac by genmacro.c"
                   " - don't edit it */\n\n#include <stddef.h>\n\n"
                   "static const char *stdmac[] = {\n");
  
      for (i=1; i<argc; i++) {
          in = fopen(argv[i], "rt");
          if (!in) {
              fprintf(stderr, "Could not open `%s'.\n", argv[i]);
              fclose(out);
              remove(OUTPUT);
              return EXIT_FAILURE;
          }
  
          fline = 0;
  
          while (fgets(str, MAXLINE, in)) {
              line++;
              fline++;
  
              strp = str;
  
              /* check for unterminated quotes and delete comments */
              charp = strp;
              while ((charp = strpbrk(charp, "'\";"))) {
                  if (charp[0] == ';') {
                      *charp = '\0';
                      break;
                  }
                  if ((charp = strchr(charp+1, charp[0])) == NULL) {
                      fprintf(stderr, "%s:%d: error: unterminated quote\n",
                              argv[i], fline);
                      fclose(out);
                      remove(OUTPUT);
                      return EXIT_FAILURE;
                  }
                  charp++;
              }
  
              /* strip off leading and trailing whitespace */
              while (*strp == ' ' || *strp == '\t')
                  strp++;
              len = strlen(strp);
              while (len > 0 && (strp[len-1] == ' ' || strp[len-1] == '\t' ||
                                 strp[len-1] == '\n')) {
                  strp[len-1] = '\0';
                  len--;
              }
  
              /* skip blank lines */
              if (len == 0)
                  continue;
  
              /* check for special TASM ending token */
              if (strcmp(strp, "*END*TASM*MACROS*") == 0) {
                  tasm_count = lindex;
                  continue;
              }
  
              /* output as string to output file */
              fprintf(out, "    \"");
              while (*strp != '\0') {
                  if (*strp == '\\' || *strp == '"')
                      fputc('\\', out);
                  fputc(*strp, out);
                  strp++;
              }
              fprintf(out, "\",\n");
              lindex++;
          }
  
          fclose(in);
      }
  
      fprintf(out, "    NULL\n};\n");
      if (tasm_count == -1)
          tasm_count = lindex;
      fprintf(out, "#define TASM_MACRO_COUNT %d\n", tasm_count);
      fclose(out);
  
      free(str);
  
      return EXIT_SUCCESS;
  }
  