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      1 /*
      2  *
      3  * Generate array-of-const-string from text file.
      4  *
      5  *  Copyright (C) 2006-2007  Peter Johnson
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND OTHER CONTRIBUTORS ``AS IS''
     17  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR OTHER CONTRIBUTORS BE
     20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 #include <stdio.h>
     29 #include <stdlib.h>
     30 #include <string.h>
     31 
     32 #define MAXLINE 1024
     33 
     34 int
     35 main(int argc, char *argv[])
     36 {
     37     FILE *in, *out;
     38     int i;
     39     char *str;
     40     char *strp;
     41     size_t len;
     42 
     43     if (argc < 4) {
     44         fprintf(stderr, "Usage: %s <string> <outfile> <file> [<file> ...]\n",
     45                 argv[0]);
     46         return EXIT_FAILURE;
     47     }
     48 
     49     out = fopen(argv[2], "wt");
     50 
     51     if (!out) {
     52         fprintf(stderr, "Could not open `%s'.\n", argv[2]);
     53         return EXIT_FAILURE;
     54     }
     55 
     56     str = malloc(MAXLINE);
     57 
     58     fprintf(out, "/* This file auto-generated from %s by genstring.c"
     59                  " - don't edit it */\n\n"
     60                  "static const char *%s[] = {\n", argv[3], argv[1]);
     61 
     62     for (i=3; i<argc; i++) {
     63         in = fopen(argv[i], "rt");
     64         if (!in) {
     65             fprintf(stderr, "Could not open `%s'.\n", argv[i]);
     66             fclose(out);
     67             remove(argv[2]);
     68             return EXIT_FAILURE;
     69         }
     70 
     71         while (fgets(str, MAXLINE, in)) {
     72             strp = str;
     73 
     74             /* strip off trailing whitespace */
     75             len = strlen(strp);
     76             while (len > 0 && (strp[len-1] == ' ' || strp[len-1] == '\t' ||
     77                                strp[len-1] == '\n')) {
     78                 strp[len-1] = '\0';
     79                 len--;
     80             }
     81 
     82             /* output as string to output file */
     83             fprintf(out, "    \"");
     84             while (*strp != '\0') {
     85                 if (*strp == '\\' || *strp == '"')
     86                     fputc('\\', out);
     87                 fputc(*strp, out);
     88                 strp++;
     89             }
     90             fprintf(out, "\",\n");
     91         }
     92 
     93         fclose(in);
     94     }
     95 
     96     fprintf(out, "};\n");
     97     fclose(out);
     98 
     99     free(str);
    100 
    101     return EXIT_SUCCESS;
    102 }
    103