texi-linearize.c

#include <stdio.h>
#include <string.h>
#include <stdlib.h>


FILE *my_open(char *directory, char *file)
{
      char path[8192];
      FILE *r;

      strcpy(path, directory);
      strcat(path,"/");
      strcat(path, file);
      
      r= fopen(path, "r");
      if(r == NULL) {
            fprintf(stderr,"Could not open %s\n", path);
            perror("open");
            exit(1);
      }
      return r;
}

int main(int argc, char **argv)
{
  FILE *stack[256];
  int sp;
  char line[4096];
  char *directory;

  sp = 0;

  if(argc < 3) {
        fprintf(stderr,"Usage: %s directory root texi file\n", argv[0]);
        exit(1);
  }

  directory = argv[1];

  stack[sp++] = my_open(directory, argv[2]);
  while(sp) {
        if(fgets(line, 4095, stack[sp-1]) ) {
              line[strlen(line)-1]='\0';
              if(!strncmp(line, "@input", 6)) {
                    stack[sp++] = my_open(directory, line+7);
                    continue;
              }
              if(!strncmp(line, "@include", 8)) {
                    stack[sp++] = my_open(directory, line+9);
                    continue;
              }
              puts(line);
        } else
              sp--;
  }
  exit(0);
}