/* * Copyright (c) 2000, 2001 by the California Institute of Technology. *  * All rights reserved. *  * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, and/or sell copies of the Software, and to permit persons * to whom the Software is furnished to do so, provided that the above * copyright notice(s) and this permission notice appear in all copies of * the Software and that both the above copyright notice(s) and this * permission notice appear in supporting documentation. *  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR * HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. *  * Except as contained in this notice, the name of a copyright holder * shall not be used in advertising or otherwise to promote the sale, use * or other dealings in this Software without prior written authorization * of the copyright holder. */#include <stdio.h>#include <stdlib.h>#include <ctype.h>#include <string.h>#include <errno.h>#include <locale.h>#include <unistd.h>#include <sys/stat.h>#include "libtecla.h"int main(int argc, char *argv[]){  char *line;             /* A line of input */  GetLine *gl;            /* The line editor */  int major,minor,micro;  /* The version number of the library *//* * Create the line editor, specifying a max line length of 500 bytes, * and 10000 bytes to allocate to storage of historical input lines. */  gl = new_GetLine(500, 5000);  if(!gl)    return 1;/* * If the user has the LC_CTYPE or LC_ALL environment variables set, * enable display of characters corresponding to the specified locale. */  (void) setlocale(LC_CTYPE, "");/* * Lookup and display the version number of the library. */  libtecla_version(&major, &minor, &micro);  printf("Welcome to the demo program of libtecla version %d.%d.%d\n",	 major, minor, micro);/* * Load history. */  (void) gl_load_history(gl, "~/.demo_history", "#");/* * Read lines of input from the user and print them to stdout. */  do {/* * Get a new line from the user. */    line = gl_get_line(gl, "$ ", NULL, 0);    if(!line)      break;/* * Display what was entered. */    if(printf("You entered: %s", line) < 0 || fflush(stdout))      break;/* * If the user types "exit", quit the program. */    if(strcmp(line, "exit\n")==0)      break;    else if(strcmp(line, "history\n")==0)      gl_show_history(gl, stdout, "%N  %T   %H\n", 0, -1);    else if(strcmp(line, "size\n")==0) {      GlTerminalSize size = gl_terminal_size(gl, 80, 24);      printf("Terminal size = %d columns x %d lines.\n", size.ncolumn,	     size.nline);    };  } while(1);/* * Save historical command lines. */  (void) gl_save_history(gl, "~/.demo_history", "#", -1);/* * Clean up. */  gl = del_GetLine(gl);  return 0;}