主程序

在本例中，程序名是 textpr。

主程序确定了要装入的模块，并调用该模块。 请注意 textpr.h 包含文件是用来指定装入对象的路径名。 这样，就可以很容易地更改这一特定于系统的路径名。

#include    <stdio.h&gt;
#include    <errno.h&gt;
#include    "methods.h"
#include    "textpr.h"    /* contains the pathname where
                             the load object can be found */

extern     int   errno;

main()
{
     char libpath[PATH_MAX];&rbl;&rbl;&rbl;/* stores the full pathname of the
                                  load object */
      char *prefix_path=PREFIX_PATH;        /* from textpr.h */
      char *method=METHOD;                  /* from textpr.h */
      int (*func)();
      char *path;
      /* Methods */
      int   ver;
      char  *p;
      struct Methods *md;
      
  
      setlocale(LC_ALL, "");

      path = setlocale(LC_CTYPE, 0);    /* obtain the locale 
                                         for LC_CTYPE category */
      /* Construct the full pathname for the */
      /* object to be loaded                 */
      strcpy(libpath, prefix_path);
      strcat(libpath, path);
      strcat(libpath, "/");
      strcat(libpath, method);
   
      func = load(conv, 1, libpath);        /* load the object */
      if(func==NULL){
            strerror(errno);
            exit(1);
      }
      /* invoke the loaded module ");
      md =(struct Methods *) func();       /* Obtain the methods
                                              structure */
      ver = md-&gt;version;
      /* Invoke the methods as needed */
      p = (md-&gt;hyphen)();
      p = (md-&gt;wordbegin)();
      p = (md-&gt;wordend)();
}