1/* $NetBSD: prompt.c,v 1.5 2005/06/09 16:48:58 lukem Exp $ */ 2/* from NetBSD: prompt.c,v 1.11 2003/08/07 16:44:32 agc Exp */ 3 4/*- 5 * Copyright (c) 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * Christos Zoulas of Cornell University. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36#include "tnftp.h" 37#include "sys.h" 38 39/* 40 * prompt.c: Prompt printing functions 41 */ 42#include <stdio.h> 43#include "el.h" 44 45private char *prompt_default(EditLine *); 46private char *prompt_default_r(EditLine *); 47 48/* prompt_default(): 49 * Just a default prompt, in case the user did not provide one 50 */ 51private char * 52/*ARGSUSED*/ 53prompt_default(EditLine *el __attribute__((__unused__))) 54{ 55 static char a[3] = {'?', ' ', '\0'}; 56 57 return (a); 58} 59 60 61/* prompt_default_r(): 62 * Just a default rprompt, in case the user did not provide one 63 */ 64private char * 65/*ARGSUSED*/ 66prompt_default_r(EditLine *el __attribute__((__unused__))) 67{ 68 static char a[1] = {'\0'}; 69 70 return (a); 71} 72 73 74/* prompt_print(): 75 * Print the prompt and update the prompt position. 76 * We use an array of integers in case we want to pass 77 * literal escape sequences in the prompt and we want a 78 * bit to flag them 79 */ 80protected void 81prompt_print(EditLine *el, int op) 82{ 83 el_prompt_t *elp; 84 char *p; 85 86 if (op == EL_PROMPT) 87 elp = &el->el_prompt; 88 else 89 elp = &el->el_rprompt; 90 p = (elp->p_func) (el); 91 while (*p) 92 re_putc(el, *p++, 1); 93 94 elp->p_pos.v = el->el_refresh.r_cursor.v; 95 elp->p_pos.h = el->el_refresh.r_cursor.h; 96} 97 98 99/* prompt_init(): 100 * Initialize the prompt stuff 101 */ 102protected int 103prompt_init(EditLine *el) 104{ 105 106 el->el_prompt.p_func = prompt_default; 107 el->el_prompt.p_pos.v = 0; 108 el->el_prompt.p_pos.h = 0; 109 el->el_rprompt.p_func = prompt_default_r; 110 el->el_rprompt.p_pos.v = 0; 111 el->el_rprompt.p_pos.h = 0; 112 return (0); 113} 114 115 116/* prompt_end(): 117 * Clean up the prompt stuff 118 */ 119protected void 120/*ARGSUSED*/ 121prompt_end(EditLine *el __attribute__((__unused__))) 122{ 123} 124 125 126/* prompt_set(): 127 * Install a prompt printing function 128 */ 129protected int 130prompt_set(EditLine *el, el_pfunc_t prf, int op) 131{ 132 el_prompt_t *p; 133 134 if (op == EL_PROMPT) 135 p = &el->el_prompt; 136 else 137 p = &el->el_rprompt; 138 if (prf == NULL) { 139 if (op == EL_PROMPT) 140 p->p_func = prompt_default; 141 else 142 p->p_func = prompt_default_r; 143 } else 144 p->p_func = prf; 145 p->p_pos.v = 0; 146 p->p_pos.h = 0; 147 return (0); 148} 149 150 151/* prompt_get(): 152 * Retrieve the prompt printing function 153 */ 154protected int 155prompt_get(EditLine *el, el_pfunc_t *prf, int op) 156{ 157 158 if (prf == NULL) 159 return (-1); 160 if (op == EL_PROMPT) 161 *prf = el->el_prompt.p_func; 162 else 163 *prf = el->el_rprompt.p_func; 164 return (0); 165} 166