Import of Empire 4.2.12

src/lib/gen/parse.c

@@ -0,0 +1,96 @@
+/*
+ *  Empire - A multi-player, client/server Internet based war game.
+ *  Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ *                           Ken Stevens, Steve McClure
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ *  ---
+ *
+ *  See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
+ *  related information and legal notices. It is expected that any future
+ *  projects/authors will amend these files as needed.
+ *
+ *  ---
+ *
+ *  parse.c: Parse an Empire command line
+ * 
+ *  Known contributors to this file:
+ *     
+ */
+
+/*
+ * parse empire command line, chop into argp
+ * If values argpp and spacep passed, parse will use them.
+ * otherwise, parse will use static space and global argp.
+ * parse assumes that argpp is a char *buf[16], and that spacep
+ * points to a buf of at least 256 bytes.
+ */
+
+#include <ctype.h>
+#include "misc.h"
+#include "gen.h"
+
+int
+parse(register s_char *buf, s_char **argpp, s_char **condp, s_char *space, s_char **redir)
+{
+	register s_char *bp2;
+	register s_char *bp1 = space;
+	register s_char **arg = argpp;
+	int	fs;
+	int     quoted;
+	int	argnum;
+
+	if (space == 0)
+		return -1;
+	if (redir)
+		*redir = 0;
+	if (condp != 0)
+		*condp = 0;
+	for (argnum=0; *buf && argnum < 100; ) {
+		arg[argnum] = bp1;
+		argnum++;
+		while (isspace(*buf))
+			buf++;
+		if (redir && (*buf == '>' || *buf == '|')) {
+			*redir = buf;
+			argnum--;
+			arg[argnum] = 0;
+			break;
+		}
+		quoted = 0;
+		for (bp2 = bp1; *buf; ) {
+		    if (!quoted && isspace(*buf)) {
+				buf++;
+				break;
+			}
+			if (*buf == '"'){
+			        quoted = !quoted;
+				buf++;
+			} else {
+			        *bp1++ = *buf++;
+			}
+		}
+		*bp1++ = 0;
+		if (*bp2 == '?' && condp != 0) {
+			*condp = bp2 + 1;
+			argnum--;
+		}
+	}
+	arg[argnum] = 0;
+	for (fs = argnum + 1; fs < 16; fs++)
+		arg[fs] = 0;
+	return argnum;
+}