650 lines
16 KiB
C
650 lines
16 KiB
C
/* $Header: /p/tcsh/cvsroot/tcsh/tc.prompt.c,v 3.67 2006/11/17 16:26:58 christos Exp $ */
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/*
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* tc.prompt.c: Prompt printing stuff
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*/
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/*-
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* Copyright (c) 1980, 1991 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "sh.h"
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RCSID("$tcsh: tc.prompt.c,v 3.67 2006/11/17 16:26:58 christos Exp $")
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#include "ed.h"
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#include "tw.h"
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/*
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* kfk 21oct1983 -- add @ (time) and / ($cwd) in prompt.
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* PWP 4/27/87 -- rearange for tcsh.
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* mrdch@com.tau.edu.il 6/26/89 - added ~, T and .# - rearanged to switch()
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* instead of if/elseif
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* Luke Mewburn, <lukem@cs.rmit.edu.au>
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* 6-Sep-91 changed date format
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* 16-Feb-94 rewrote directory prompt code, added $ellipsis
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* 29-Dec-96 added rprompt support
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*/
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static const char *month_list[12];
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static const char *day_list[7];
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void
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dateinit(void)
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{
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#ifdef notyet
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int i;
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setlocale(LC_TIME, "");
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for (i = 0; i < 12; i++)
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xfree((ptr_t) month_list[i]);
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month_list[0] = strsave(_time_info->abbrev_month[0]);
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month_list[1] = strsave(_time_info->abbrev_month[1]);
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month_list[2] = strsave(_time_info->abbrev_month[2]);
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month_list[3] = strsave(_time_info->abbrev_month[3]);
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month_list[4] = strsave(_time_info->abbrev_month[4]);
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month_list[5] = strsave(_time_info->abbrev_month[5]);
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month_list[6] = strsave(_time_info->abbrev_month[6]);
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month_list[7] = strsave(_time_info->abbrev_month[7]);
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month_list[8] = strsave(_time_info->abbrev_month[8]);
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month_list[9] = strsave(_time_info->abbrev_month[9]);
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month_list[10] = strsave(_time_info->abbrev_month[10]);
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month_list[11] = strsave(_time_info->abbrev_month[11]);
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for (i = 0; i < 7; i++)
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xfree((ptr_t) day_list[i]);
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day_list[0] = strsave(_time_info->abbrev_wkday[0]);
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day_list[1] = strsave(_time_info->abbrev_wkday[1]);
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day_list[2] = strsave(_time_info->abbrev_wkday[2]);
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day_list[3] = strsave(_time_info->abbrev_wkday[3]);
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day_list[4] = strsave(_time_info->abbrev_wkday[4]);
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day_list[5] = strsave(_time_info->abbrev_wkday[5]);
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day_list[6] = strsave(_time_info->abbrev_wkday[6]);
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#else
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month_list[0] = "Jan";
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month_list[1] = "Feb";
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month_list[2] = "Mar";
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month_list[3] = "Apr";
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month_list[4] = "May";
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month_list[5] = "Jun";
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month_list[6] = "Jul";
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month_list[7] = "Aug";
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month_list[8] = "Sep";
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month_list[9] = "Oct";
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month_list[10] = "Nov";
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month_list[11] = "Dec";
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day_list[0] = "Sun";
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day_list[1] = "Mon";
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day_list[2] = "Tue";
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day_list[3] = "Wed";
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day_list[4] = "Thu";
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day_list[5] = "Fri";
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day_list[6] = "Sat";
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#endif
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}
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void
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printprompt(int promptno, const char *str)
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{
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static const Char *ocp = NULL;
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static const char *ostr = NULL;
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time_t lclock = time(NULL);
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const Char *cp;
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switch (promptno) {
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default:
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case 0:
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cp = varval(STRprompt);
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break;
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case 1:
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cp = varval(STRprompt2);
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break;
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case 2:
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cp = varval(STRprompt3);
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break;
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case 3:
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if (ocp != NULL) {
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cp = ocp;
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str = ostr;
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}
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else
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cp = varval(STRprompt);
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break;
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}
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if (promptno < 2) {
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ocp = cp;
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ostr = str;
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}
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xfree(Prompt);
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Prompt = NULL;
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Prompt = tprintf(FMT_PROMPT, cp, str, lclock, NULL);
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if (!editing) {
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for (cp = Prompt; *cp ; )
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(void) putwraw(*cp++);
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SetAttributes(0);
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flush();
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}
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xfree(RPrompt);
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RPrompt = NULL;
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if (promptno == 0) { /* determine rprompt if using main prompt */
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cp = varval(STRrprompt);
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RPrompt = tprintf(FMT_PROMPT, cp, NULL, lclock, NULL);
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/* if not editing, put rprompt after prompt */
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if (!editing && RPrompt[0] != '\0') {
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for (cp = RPrompt; *cp ; )
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(void) putwraw(*cp++);
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SetAttributes(0);
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putraw(' ');
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flush();
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}
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}
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}
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static void
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tprintf_append_mbs(struct Strbuf *buf, const char *mbs, Char attributes)
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{
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while (*mbs != 0) {
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Char wc;
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mbs += one_mbtowc(&wc, mbs, MB_LEN_MAX);
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Strbuf_append1(buf, wc | attributes);
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}
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}
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Char *
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tprintf(int what, const Char *fmt, const char *str, time_t tim, ptr_t info)
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{
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struct Strbuf buf = Strbuf_INIT;
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Char *z, *q;
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Char attributes = 0;
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static int print_prompt_did_ding = 0;
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char *cz;
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Char *p;
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const Char *cp = fmt;
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Char Scp;
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struct tm *t = localtime(&tim);
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/* prompt stuff */
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static Char *olduser = NULL;
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int updirs;
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size_t pdirs;
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cleanup_push(&buf, Strbuf_cleanup);
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for (; *cp; cp++) {
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if ((*cp == '%') && ! (cp[1] == '\0')) {
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cp++;
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switch (*cp) {
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case 'R':
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if (what == FMT_HISTORY) {
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cz = fmthist('R', info);
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tprintf_append_mbs(&buf, cz, attributes);
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xfree(cz);
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} else {
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if (str != NULL)
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tprintf_append_mbs(&buf, str, attributes);
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}
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break;
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case '#':
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Strbuf_append1(&buf,
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attributes | ((uid == 0) ? PRCHROOT : PRCH));
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break;
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case '!':
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case 'h':
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switch (what) {
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case FMT_HISTORY:
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cz = fmthist('h', info);
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break;
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case FMT_SCHED:
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cz = xasprintf("%d", *(int *)info);
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break;
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default:
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cz = xasprintf("%d", eventno + 1);
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break;
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}
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tprintf_append_mbs(&buf, cz, attributes);
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xfree(cz);
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break;
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case 'T': /* 24 hour format */
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case '@':
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case 't': /* 12 hour am/pm format */
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case 'p': /* With seconds */
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case 'P':
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{
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char ampm = 'a';
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int hr = t->tm_hour;
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/* addition by Hans J. Albertsson */
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/* and another adapted from Justin Bur */
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if (adrof(STRampm) || (*cp != 'T' && *cp != 'P')) {
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if (hr >= 12) {
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if (hr > 12)
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hr -= 12;
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ampm = 'p';
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}
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else if (hr == 0)
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hr = 12;
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} /* else do a 24 hour clock */
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/* "DING!" stuff by Hans also */
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if (t->tm_min || print_prompt_did_ding ||
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what != FMT_PROMPT || adrof(STRnoding)) {
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if (t->tm_min)
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print_prompt_did_ding = 0;
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/*
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* Pad hour to 2 characters if padhour is set,
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* by ADAM David Alan Martin
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*/
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p = Itoa(hr, adrof(STRpadhour) ? 2 : 0, attributes);
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Strbuf_append(&buf, p);
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xfree(p);
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Strbuf_append1(&buf, attributes | ':');
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p = Itoa(t->tm_min, 2, attributes);
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Strbuf_append(&buf, p);
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xfree(p);
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if (*cp == 'p' || *cp == 'P') {
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Strbuf_append1(&buf, attributes | ':');
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p = Itoa(t->tm_sec, 2, attributes);
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Strbuf_append(&buf, p);
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xfree(p);
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}
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if (adrof(STRampm) || (*cp != 'T' && *cp != 'P')) {
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Strbuf_append1(&buf, attributes | ampm);
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Strbuf_append1(&buf, attributes | 'm');
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}
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}
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else { /* we need to ding */
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size_t i;
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for (i = 0; STRDING[i] != 0; i++)
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Strbuf_append1(&buf, attributes | STRDING[i]);
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print_prompt_did_ding = 1;
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}
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}
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break;
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case 'M':
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#ifndef HAVENOUTMP
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if (what == FMT_WHO)
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cz = who_info(info, 'M');
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else
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#endif /* HAVENOUTMP */
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cz = getenv("HOST");
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/*
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* Bug pointed out by Laurent Dami <dami@cui.unige.ch>: don't
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* derefrence that NULL (if HOST is not set)...
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*/
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if (cz != NULL)
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tprintf_append_mbs(&buf, cz, attributes);
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if (what == FMT_WHO)
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xfree(cz);
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break;
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case 'm': {
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char *scz = NULL;
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#ifndef HAVENOUTMP
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if (what == FMT_WHO)
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scz = cz = who_info(info, 'm');
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else
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#endif /* HAVENOUTMP */
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cz = getenv("HOST");
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if (cz != NULL)
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while (*cz != 0 && (what == FMT_WHO || *cz != '.')) {
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Char wc;
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cz += one_mbtowc(&wc, cz, MB_LEN_MAX);
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Strbuf_append1(&buf, wc | attributes);
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}
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if (scz)
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xfree(scz);
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break;
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}
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/* lukem: new directory prompt code */
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case '~':
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case '/':
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case '.':
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case 'c':
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case 'C':
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Scp = *cp;
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if (Scp == 'c') /* store format type (c == .) */
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Scp = '.';
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if ((z = varval(STRcwd)) == STRNULL)
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break; /* no cwd, so don't do anything */
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/* show ~ whenever possible - a la dirs */
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if (Scp == '~' || Scp == '.' ) {
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static Char *olddir = NULL;
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if (tlength == 0 || olddir != z) {
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olddir = z; /* have we changed dir? */
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olduser = getusername(&olddir);
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}
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if (olduser)
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z = olddir;
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}
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updirs = pdirs = 0;
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/* option to determine fixed # of dirs from path */
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if (Scp == '.' || Scp == 'C') {
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int skip;
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#ifdef WINNT_NATIVE
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Char *oldz = z;
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if (z[1] == ':') {
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Strbuf_append1(&buf, attributes | *z++);
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Strbuf_append1(&buf, attributes | *z++);
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}
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if (*z == '/' && z[1] == '/') {
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Strbuf_append1(&buf, attributes | *z++);
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Strbuf_append1(&buf, attributes | *z++);
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do {
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Strbuf_append1(&buf, attributes | *z++);
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} while(*z != '/');
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}
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#endif /* WINNT_NATIVE */
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q = z;
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while (*z) /* calc # of /'s */
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if (*z++ == '/')
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updirs++;
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#ifdef WINNT_NATIVE
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/*
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* for format type c, prompt will be following...
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* c:/path => c:/path
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* c:/path/to => c:to
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* //machine/share => //machine/share
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* //machine/share/folder => //machine:folder
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*/
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if (oldz[0] == '/' && oldz[1] == '/' && updirs > 1)
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Strbuf_append1(&buf, attributes | ':');
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#endif /* WINNT_NATIVE */
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if ((Scp == 'C' && *q != '/'))
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updirs++;
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if (cp[1] == '0') { /* print <x> or ... */
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pdirs = 1;
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cp++;
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}
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if (cp[1] >= '1' && cp[1] <= '9') { /* calc # to skip */
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skip = cp[1] - '0';
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cp++;
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}
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else
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skip = 1;
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updirs -= skip;
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while (skip-- > 0) {
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while ((z > q) && (*z != '/'))
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z--; /* back up */
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if (skip && z > q)
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z--;
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}
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if (*z == '/' && z != q)
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z++;
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} /* . || C */
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/* print ~[user] */
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if ((olduser) && ((Scp == '~') ||
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(Scp == '.' && (pdirs || (!pdirs && updirs <= 0))) )) {
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Strbuf_append1(&buf, attributes | '~');
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for (q = olduser; *q; q++)
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Strbuf_append1(&buf, attributes | *q);
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}
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/* RWM - tell you how many dirs we've ignored */
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/* and add '/' at front of this */
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if (updirs > 0 && pdirs) {
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if (adrof(STRellipsis)) {
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Strbuf_append1(&buf, attributes | '.');
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Strbuf_append1(&buf, attributes | '.');
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Strbuf_append1(&buf, attributes | '.');
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} else {
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Strbuf_append1(&buf, attributes | '/');
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Strbuf_append1(&buf, attributes | '<');
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if (updirs > 9) {
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Strbuf_append1(&buf, attributes | '9');
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Strbuf_append1(&buf, attributes | '+');
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} else
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Strbuf_append1(&buf, attributes | ('0' + updirs));
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Strbuf_append1(&buf, attributes | '>');
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}
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}
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while (*z)
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Strbuf_append1(&buf, attributes | *z++);
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break;
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/* lukem: end of new directory prompt code */
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case 'n':
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#ifndef HAVENOUTMP
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if (what == FMT_WHO) {
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cz = who_info(info, 'n');
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tprintf_append_mbs(&buf, cz, attributes);
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xfree(cz);
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}
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else
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#endif /* HAVENOUTMP */
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{
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if ((z = varval(STRuser)) != STRNULL)
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while (*z)
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Strbuf_append1(&buf, attributes | *z++);
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}
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break;
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case 'l':
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#ifndef HAVENOUTMP
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if (what == FMT_WHO) {
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cz = who_info(info, 'l');
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tprintf_append_mbs(&buf, cz, attributes);
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xfree(cz);
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}
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else
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#endif /* HAVENOUTMP */
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{
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if ((z = varval(STRtty)) != STRNULL)
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while (*z)
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Strbuf_append1(&buf, attributes | *z++);
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}
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break;
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case 'd':
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tprintf_append_mbs(&buf, day_list[t->tm_wday], attributes);
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break;
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case 'D':
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p = Itoa(t->tm_mday, 2, attributes);
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Strbuf_append(&buf, p);
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xfree(p);
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break;
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case 'w':
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tprintf_append_mbs(&buf, month_list[t->tm_mon], attributes);
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break;
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case 'W':
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p = Itoa(t->tm_mon + 1, 2, attributes);
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Strbuf_append(&buf, p);
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xfree(p);
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break;
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case 'y':
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p = Itoa(t->tm_year % 100, 2, attributes);
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Strbuf_append(&buf, p);
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xfree(p);
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break;
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case 'Y':
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p = Itoa(t->tm_year + 1900, 4, attributes);
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Strbuf_append(&buf, p);
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xfree(p);
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break;
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case 'S': /* start standout */
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attributes |= STANDOUT;
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break;
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case 'B': /* start bold */
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attributes |= BOLD;
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break;
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case 'U': /* start underline */
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attributes |= UNDER;
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break;
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case 's': /* end standout */
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attributes &= ~STANDOUT;
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break;
|
|
case 'b': /* end bold */
|
|
attributes &= ~BOLD;
|
|
break;
|
|
case 'u': /* end underline */
|
|
attributes &= ~UNDER;
|
|
break;
|
|
case 'L':
|
|
ClearToBottom();
|
|
break;
|
|
|
|
case 'j':
|
|
{
|
|
int njobs = -1;
|
|
struct process *pp;
|
|
|
|
for (pp = proclist.p_next; pp; pp = pp->p_next)
|
|
njobs++;
|
|
p = Itoa(njobs, 1, attributes);
|
|
Strbuf_append(&buf, p);
|
|
xfree(p);
|
|
break;
|
|
}
|
|
case '?':
|
|
if ((z = varval(STRstatus)) != STRNULL)
|
|
while (*z)
|
|
Strbuf_append1(&buf, attributes | *z++);
|
|
break;
|
|
case '$':
|
|
expdollar(&buf, &cp, attributes);
|
|
/* cp should point the last char of current % sequence */
|
|
cp--;
|
|
break;
|
|
case '%':
|
|
Strbuf_append1(&buf, attributes | '%');
|
|
break;
|
|
case '{': /* literal characters start */
|
|
#if LITERAL == 0
|
|
/*
|
|
* No literal capability, so skip all chars in the literal
|
|
* string
|
|
*/
|
|
while (*cp != '\0' && (cp[-1] != '%' || *cp != '}'))
|
|
cp++;
|
|
#endif /* LITERAL == 0 */
|
|
attributes |= LITERAL;
|
|
break;
|
|
case '}': /* literal characters end */
|
|
attributes &= ~LITERAL;
|
|
break;
|
|
default:
|
|
#ifndef HAVENOUTMP
|
|
if (*cp == 'a' && what == FMT_WHO) {
|
|
cz = who_info(info, 'a');
|
|
tprintf_append_mbs(&buf, cz, attributes);
|
|
xfree(cz);
|
|
}
|
|
else
|
|
#endif /* HAVENOUTMP */
|
|
{
|
|
Strbuf_append1(&buf, attributes | '%');
|
|
Strbuf_append1(&buf, attributes | *cp);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
else if (*cp == '\\' || *cp == '^')
|
|
Strbuf_append1(&buf, attributes | parseescape(&cp));
|
|
else if (*cp == HIST) { /* EGS: handle '!'s in prompts */
|
|
if (what == FMT_HISTORY)
|
|
cz = fmthist('h', info);
|
|
else
|
|
cz = xasprintf("%d", eventno + 1);
|
|
tprintf_append_mbs(&buf, cz, attributes);
|
|
xfree(cz);
|
|
}
|
|
else
|
|
Strbuf_append1(&buf, attributes | *cp); /* normal character */
|
|
}
|
|
cleanup_ignore(&buf);
|
|
cleanup_until(&buf);
|
|
return Strbuf_finish(&buf);
|
|
}
|
|
|
|
int
|
|
expdollar(struct Strbuf *buf, const Char **srcp, Char attr)
|
|
{
|
|
struct varent *vp;
|
|
const Char *src = *srcp;
|
|
Char *var, *val;
|
|
size_t i;
|
|
int curly = 0;
|
|
|
|
/* found a variable, expand it */
|
|
var = xmalloc((Strlen(src) + 1) * sizeof (*var));
|
|
for (i = 0; ; i++) {
|
|
var[i] = *++src & TRIM;
|
|
if (i == 0 && var[i] == '{') {
|
|
curly = 1;
|
|
var[i] = *++src & TRIM;
|
|
}
|
|
if (!alnum(var[i]) && var[i] != '_') {
|
|
|
|
var[i] = '\0';
|
|
break;
|
|
}
|
|
}
|
|
if (curly && (*src & TRIM) == '}')
|
|
src++;
|
|
|
|
vp = adrof(var);
|
|
if (vp && vp->vec) {
|
|
for (i = 0; vp->vec[i] != NULL; i++) {
|
|
for (val = vp->vec[i]; *val; val++)
|
|
if (*val != '\n' && *val != '\r')
|
|
Strbuf_append1(buf, *val | attr);
|
|
if (vp->vec[i+1])
|
|
Strbuf_append1(buf, ' ' | attr);
|
|
}
|
|
}
|
|
else {
|
|
val = (!vp) ? tgetenv(var) : NULL;
|
|
if (val) {
|
|
for (; *val; val++)
|
|
if (*val != '\n' && *val != '\r')
|
|
Strbuf_append1(buf, *val | attr);
|
|
} else {
|
|
*srcp = src;
|
|
xfree(var);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
*srcp = src;
|
|
xfree(var);
|
|
return 1;
|
|
}
|