mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-27 06:34:11 +00:00
666c3fce07
loops, branching, and getting the tokenizer to give special treatment to certain builtin functions. But first I should get some sleep :)
172 lines
3.1 KiB
C
172 lines
3.1 KiB
C
/*
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#FILENAME#
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#DESCRIPTION#
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Copyright (C) 2002 #AUTHOR#
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Author: #AUTHOR#
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Date: #DATE#
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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.
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See the GNU General Public License for more details.
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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:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#include <ctype.h>
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#include "QF/dstring.h"
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#include "QF/cbuf.h"
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#include "QF/cmd.h"
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static dstring_t *_com_token;
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const char *com_token;
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const char *
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COM_Parse (const char *data)
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{
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int c;
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int i;
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if (!_com_token) {
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_com_token = dstring_newstr ();
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} else {
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dstring_clearstr (_com_token);
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}
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com_token = _com_token->str;
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if (!data)
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return 0;
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skipwhite:
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while (isspace ((byte) *data))
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data++;
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if (!*data)
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return 0;
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if (data[0] == '/' && data[1] == '/') {
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while (*data && *data != '\n')
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data++;
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goto skipwhite;
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}
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if (*data == '"') {
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data++;
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i = 0;
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while (1) {
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c = data[i++];
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if (c == '"' || !c) {
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dstring_insert (_com_token, 0, data, i - 1);
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goto done;
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}
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}
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}
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i = 0;
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do {
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i++;
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} while (data[i] && !isspace ((byte) data[i]));
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dstring_insert (_com_token, 0, data, i);
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done:
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com_token = _com_token->str;
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return data + i;
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}
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void
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COM_TokenizeString (const char *str, cbuf_args_t *args)
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{
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const char *s;
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args->argc = 0;
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while (1) {
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while (isspace ((byte)*str) && *str != '\n')
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str++;
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if (*str == '\n') {
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str++;
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break;
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}
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if (!*str)
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return;
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s = COM_Parse (str);
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if (!s)
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return;
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Cbuf_ArgsAdd (args, com_token);
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args->args[args->argc - 1] = str;
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str = s;
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}
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return;
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}
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void
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COM_extract_line (cbuf_t *cbuf)
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{
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int i;
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int len = cbuf->buf->size - 1;
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char *text = cbuf->buf->str;
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int quotes = 0;
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dstring_clearstr (cbuf->line);
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for (i = 0; i < len; i++) {
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if (text[i] == '"')
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quotes++;
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if (!(quotes & 1)) {
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if (text[i] == ';')
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// don't break if inside a quoted string
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break;
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if (text[i] == '/' && text[i + 1] == '/') {
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int j = i;
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while (j < len && text[j] != '\n' && text[j] != '\r')
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j++;
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dstring_snip (cbuf->buf, i, j - i);
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len -= j - i;
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}
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}
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if (text[i] == '\n' || text[i] == '\r')
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break;
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}
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if (i)
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dstring_insert (cbuf->line, 0, text, i);
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if (text[i]) {
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dstring_snip (cbuf->buf, 0, i + 1);
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} else {
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// We've hit the end of the buffer, just clear it
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dstring_clearstr (cbuf->buf);
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}
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}
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void
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COM_parse_line (cbuf_t *cbuf)
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{
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COM_TokenizeString (cbuf->line->str, cbuf->args);
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dstring_clearstr (cbuf->line);
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}
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void
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COM_execute_line (cbuf_t *cbuf)
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{
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Cmd_Command (cbuf->args);
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}
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cbuf_interpreter_t id_interp = {
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COM_extract_line,
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COM_parse_line,
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COM_execute_line,
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NULL,
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NULL,
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};
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