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/*- * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Christos Zoulas of Cornell University. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $NetBSD: prompt.c,v 1.11 2003/08/07 16:44:32 agc Exp $ */ #if !defined(lint) && !defined(SCCSID) static char sccsid[] = "@(#)prompt.c 8.1 (Berkeley) 6/4/93"; #endif /* not lint && not SCCSID */ #include <sys/cdefs.h> /* * prompt.c: Prompt printing functions */ #include "sys.h" #include <stdio.h> #include "el.h" private char *prompt_default(EditLine *); private char *prompt_default_r(EditLine *); /* prompt_default(): * Just a default prompt, in case the user did not provide one */ private char * /*ARGSUSED*/ prompt_default(EditLine *el __unused) { static char a[3] = {'?', ' ', '\0'}; return (a); } /* prompt_default_r(): * Just a default rprompt, in case the user did not provide one */ private char * /*ARGSUSED*/ prompt_default_r(EditLine *el __unused) { static char a[1] = {'\0'}; return (a); } /* prompt_print(): * Print the prompt and update the prompt position. * We use an array of integers in case we want to pass * literal escape sequences in the prompt and we want a * bit to flag them */ protected void prompt_print(EditLine *el, int op) { el_prompt_t *elp; char *p; if (op == EL_PROMPT) elp = &el->el_prompt; else elp = &el->el_rprompt; p = (elp->p_func) (el); while (*p) re_putc(el, *p++, 1); elp->p_pos.v = el->el_refresh.r_cursor.v; elp->p_pos.h = el->el_refresh.r_cursor.h; } /* prompt_init(): * Initialize the prompt stuff */ protected int prompt_init(EditLine *el) { el->el_prompt.p_func = prompt_default; el->el_prompt.p_pos.v = 0; el->el_prompt.p_pos.h = 0; el->el_rprompt.p_func = prompt_default_r; el->el_rprompt.p_pos.v = 0; el->el_rprompt.p_pos.h = 0; return (0); } /* prompt_end(): * Clean up the prompt stuff */ protected void /*ARGSUSED*/ prompt_end(EditLine *el __unused) { } /* prompt_set(): * Install a prompt printing function */ protected int prompt_set(EditLine *el, el_pfunc_t prf, int op) { el_prompt_t *p; if (op == EL_PROMPT) p = &el->el_prompt; else p = &el->el_rprompt; if (prf == NULL) { if (op == EL_PROMPT) p->p_func = prompt_default; else p->p_func = prompt_default_r; } else p->p_func = prf; p->p_pos.v = 0; p->p_pos.h = 0; return (0); } /* prompt_get(): * Retrieve the prompt printing function */ protected int prompt_get(EditLine *el, el_pfunc_t *prf, int op) { if (prf == NULL) return (-1); if (op == EL_PROMPT) *prf = el->el_prompt.p_func; else *prf = el->el_rprompt.p_func; return (0); } syntax highlighted by Code2HTML, v. 0.9.1 |