Markus Armbruster
052d514bfe
No need to check player->aborted(), checking value of uprmptrd() suffices.
107 lines
2.9 KiB
C
107 lines
2.9 KiB
C
/*
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* Empire - A multi-player, client/server Internet based war game.
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* Copyright (C) 1986-2008, Dave Pare, Jeff Bailey, Thomas Ruschak,
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* Ken Stevens, Steve McClure
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* ---
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*
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* See files README, COPYING and CREDITS in the root of the source
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* tree for related information and legal notices. It is expected
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* that future projects/authors will amend these files as needed.
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*
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* ---
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*
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* getele.c: Read a telegram from a file or stdin and send it to a country
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*
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* Known contributors to this file:
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*
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*/
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#include <config.h>
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#include "player.h"
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#include "prototypes.h"
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#include "tel.h"
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static int tilde_escape(char *s);
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/*
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* Read a telegram for RECIPIENT into BUF, in UTF-8.
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* BUF must have space for MAXTELSIZE+1 characters.
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* Return telegram length, or -1 on error.
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*/
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int
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getele(char *recipient, char *buf)
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{
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char *bp;
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size_t len;
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char buffer[MAXTELSIZE + 2]; /* UTF-8 */
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char left[16];
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pr("Enter telegram for %s\n", recipient);
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pr("undo last line with ~u, print with ~p, abort with ~q, end with ^D or .\n");
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bp = buf;
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*bp = 0;
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for (;;) {
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sprintf(left, "%4d left: ", (int)(buf + MAXTELSIZE - bp));
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if (uprmptrd(left, buffer, sizeof(buffer) - 2) <= 0)
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return -1;
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switch (tilde_escape(buffer)) {
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case 'q':
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return -1;
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case 'u':
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if (bp == buf) {
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pr("No more lines to undo\n");
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continue;
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}
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for (bp -= 2; bp >= buf && *bp != '\n'; --bp) ;
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*++bp = 0;
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pr("Last line deleted.\n");
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continue;
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case 'p':
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pr("This is what you have written so far:\n");
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uprnf(buf);
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continue;
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}
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if (buffer[0] == '.' && buffer[1] == 0)
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break;
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if (buffer[0] == '>') /* forgery attempt? */
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buffer[0] = '?'; /* foil it */
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len = strlen(buffer);
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if (CANT_HAPPEN(len > sizeof(buffer) - 2))
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len = sizeof(buffer) - 2;
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buffer[len++] = '\n';
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buffer[len] = 0;
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if (bp + len > buf + MAXTELSIZE)
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pr("Too long. Try that last line again...\n");
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else {
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memcpy(bp, buffer, len + 1);
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bp += len;
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}
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}
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return bp - buf;
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}
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/*
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* If S is a `tilde escape', return its code, else 0.
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* A tilde escape is '~' followed by the code character.
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*/
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static int
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tilde_escape(char *s)
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{
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return s[0] == '~' && s[2] == 0 ? s[1] : 0;
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}
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