11573Srgrimes/*- 21573Srgrimes * Copyright (c) 1992, 1993 31573Srgrimes * The Regents of the University of California. All rights reserved. 41573Srgrimes * 51573Srgrimes * This code is derived from software contributed to Berkeley by 61573Srgrimes * Christos Zoulas of Cornell University. 71573Srgrimes * 81573Srgrimes * Redistribution and use in source and binary forms, with or without 91573Srgrimes * modification, are permitted provided that the following conditions 101573Srgrimes * are met: 111573Srgrimes * 1. Redistributions of source code must retain the above copyright 121573Srgrimes * notice, this list of conditions and the following disclaimer. 131573Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 141573Srgrimes * notice, this list of conditions and the following disclaimer in the 151573Srgrimes * documentation and/or other materials provided with the distribution. 16148834Sstefanf * 3. Neither the name of the University nor the names of its contributors 171573Srgrimes * may be used to endorse or promote products derived from this software 181573Srgrimes * without specific prior written permission. 191573Srgrimes * 201573Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 211573Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 221573Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 231573Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 241573Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 251573Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 261573Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 271573Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 281573Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 291573Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 301573Srgrimes * SUCH DAMAGE. 3184260Sobrien * 32268782Spfg * $NetBSD: prompt.c,v 1.14 2009/03/31 17:38:27 christos Exp $ 331573Srgrimes */ 341573Srgrimes 351573Srgrimes#if !defined(lint) && !defined(SCCSID) 361573Srgrimesstatic char sccsid[] = "@(#)prompt.c 8.1 (Berkeley) 6/4/93"; 371573Srgrimes#endif /* not lint && not SCCSID */ 3884260Sobrien#include <sys/cdefs.h> 3984260Sobrien__FBSDID("$FreeBSD$"); 401573Srgrimes 411573Srgrimes/* 421573Srgrimes * prompt.c: Prompt printing functions 431573Srgrimes */ 441573Srgrimes#include "sys.h" 451573Srgrimes#include <stdio.h> 461573Srgrimes#include "el.h" 471573Srgrimes 4884260Sobrienprivate char *prompt_default(EditLine *); 4984260Sobrienprivate char *prompt_default_r(EditLine *); 501573Srgrimes 511573Srgrimes/* prompt_default(): 521573Srgrimes * Just a default prompt, in case the user did not provide one 531573Srgrimes */ 541573Srgrimesprivate char * 551573Srgrimes/*ARGSUSED*/ 56148834Sstefanfprompt_default(EditLine *el __unused) 571573Srgrimes{ 5884260Sobrien static char a[3] = {'?', ' ', '\0'}; 5984260Sobrien 6084260Sobrien return (a); 611573Srgrimes} 621573Srgrimes 631573Srgrimes 6484260Sobrien/* prompt_default_r(): 6584260Sobrien * Just a default rprompt, in case the user did not provide one 6684260Sobrien */ 6784260Sobrienprivate char * 6884260Sobrien/*ARGSUSED*/ 69148834Sstefanfprompt_default_r(EditLine *el __unused) 7084260Sobrien{ 7184260Sobrien static char a[1] = {'\0'}; 7284260Sobrien 7384260Sobrien return (a); 7484260Sobrien} 7584260Sobrien 7684260Sobrien 771573Srgrimes/* prompt_print(): 781573Srgrimes * Print the prompt and update the prompt position. 791573Srgrimes * We use an array of integers in case we want to pass 801573Srgrimes * literal escape sequences in the prompt and we want a 811573Srgrimes * bit to flag them 821573Srgrimes */ 831573Srgrimesprotected void 8484260Sobrienprompt_print(EditLine *el, int op) 851573Srgrimes{ 8684260Sobrien el_prompt_t *elp; 8784260Sobrien char *p; 88237448Spfg int ignore = 0; 891573Srgrimes 9084260Sobrien if (op == EL_PROMPT) 9184260Sobrien elp = &el->el_prompt; 9284260Sobrien else 9384260Sobrien elp = &el->el_rprompt; 941573Srgrimes 95237448Spfg for (p = (*elp->p_func)(el); *p; p++) { 96237448Spfg if (elp->p_ignore == *p) { 97237448Spfg ignore = !ignore; 98237448Spfg continue; 99237448Spfg } 100237448Spfg if (ignore) 101237448Spfg term__putc(el, *p); 102237448Spfg else 103237448Spfg re_putc(el, *p, 1); 104237448Spfg } 105237448Spfg 10684260Sobrien elp->p_pos.v = el->el_refresh.r_cursor.v; 10784260Sobrien elp->p_pos.h = el->el_refresh.r_cursor.h; 10884260Sobrien} 1091573Srgrimes 1101573Srgrimes 1111573Srgrimes/* prompt_init(): 1121573Srgrimes * Initialize the prompt stuff 1131573Srgrimes */ 1148870Srgrimesprotected int 11584260Sobrienprompt_init(EditLine *el) 1161573Srgrimes{ 1171573Srgrimes 11884260Sobrien el->el_prompt.p_func = prompt_default; 11984260Sobrien el->el_prompt.p_pos.v = 0; 12084260Sobrien el->el_prompt.p_pos.h = 0; 121237448Spfg el->el_prompt.p_ignore = '\0'; 12284260Sobrien el->el_rprompt.p_func = prompt_default_r; 12384260Sobrien el->el_rprompt.p_pos.v = 0; 12484260Sobrien el->el_rprompt.p_pos.h = 0; 125237448Spfg el->el_rprompt.p_ignore = '\0'; 126237448Spfg return 0; 12784260Sobrien} 1281573Srgrimes 12984260Sobrien 1301573Srgrimes/* prompt_end(): 1311573Srgrimes * Clean up the prompt stuff 1321573Srgrimes */ 1331573Srgrimesprotected void 1348870Srgrimes/*ARGSUSED*/ 135148834Sstefanfprompt_end(EditLine *el __unused) 1361573Srgrimes{ 13784260Sobrien} 1381573Srgrimes 1391573Srgrimes 1401573Srgrimes/* prompt_set(): 1411573Srgrimes * Install a prompt printing function 1421573Srgrimes */ 1438870Srgrimesprotected int 144237448Spfgprompt_set(EditLine *el, el_pfunc_t prf, char c, int op) 1451573Srgrimes{ 14684260Sobrien el_prompt_t *p; 14784260Sobrien 148237448Spfg if (op == EL_PROMPT || op == EL_PROMPT_ESC) 14984260Sobrien p = &el->el_prompt; 15084260Sobrien else 15184260Sobrien p = &el->el_rprompt; 152237448Spfg 15384260Sobrien if (prf == NULL) { 154237448Spfg if (op == EL_PROMPT || op == EL_PROMPT_ESC) 15584260Sobrien p->p_func = prompt_default; 15684260Sobrien else 15784260Sobrien p->p_func = prompt_default_r; 15884260Sobrien } else 15984260Sobrien p->p_func = prf; 160237448Spfg 161237448Spfg p->p_ignore = c; 162237448Spfg 16384260Sobrien p->p_pos.v = 0; 16484260Sobrien p->p_pos.h = 0; 165237448Spfg 166237448Spfg return 0; 16784260Sobrien} 16884260Sobrien 16984260Sobrien 17084260Sobrien/* prompt_get(): 17184260Sobrien * Retrieve the prompt printing function 17284260Sobrien */ 17384260Sobrienprotected int 174237448Spfgprompt_get(EditLine *el, el_pfunc_t *prf, char *c, int op) 17584260Sobrien{ 176237448Spfg el_prompt_t *p; 17784260Sobrien 17884260Sobrien if (prf == NULL) 179237448Spfg return -1; 180237448Spfg 18184260Sobrien if (op == EL_PROMPT) 182237448Spfg p = &el->el_prompt; 18384260Sobrien else 184237448Spfg p = &el->el_rprompt; 185237448Spfg 186237448Spfg *prf = el->el_rprompt.p_func; 187237448Spfg 188237448Spfg if (c) 189237448Spfg *c = p->p_ignore; 190237448Spfg 191237448Spfg return 0; 19284260Sobrien} 193