/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2005, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ * Copyright (C) 1986-2006, Dave Pare, Jeff Bailey, Thomas Ruschak,
* Ken Stevens, Steve McClure
*
* This program is free software; you can redistribute it and/or modify
*
* ---
*
- * 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.
+ * See files README, COPYING and CREDITS in the root of the source
+ * tree for related information and legal notices. It is expected
+ * that future projects/authors will amend these files as needed.
*
* ---
*
*
*/
-/*
- * 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 <config.h>
#include <ctype.h>
#include "misc.h"
#include "gen.h"
+/*
+ * Parse user command in BUF.
+ * BUF is UTF-8.
+ * Set ARG[0] to point to the command name.
+ * Set ARG[1..N] to point to arguments, where N is the number of
+ * arguments. Set ARG[N+1..127] to NULL.
+ * If *CONDP is not null, recognize conditional argument syntax, and
+ * set *CONDP to the conditional argument if present, else NULL.
+ * Command name and arguments are copied into SPACE[], whose size must
+ * be at least strlen(BUF) + 1.
+ * If *REDIR is not null, recognize redirection syntax, and set *REDIR
+ * to UTF-8 redirection string if present, else NULL.
+ * Return number of slots used in ARG[], or -1 on error.
+ */
int
-parse(register s_char *buf, s_char **argpp, s_char **condp, s_char *space,
- s_char **redir)
+parse(char *buf, char **arg, char **condp, char *space, char **redir)
{
- register s_char *bp2;
- register s_char *bp1 = space;
- register s_char **arg = argpp;
+ char *bp2;
+ char *bp1 = space;
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;) {
+ if (condp != NULL)
+ *condp = NULL;
+ for (argnum = 0; *buf && argnum < 127;) {
while (isspace(*buf))
buf++;
if (!*buf)
}
}
*bp1++ = 0;
- if (*bp2 == '?' && condp != 0) {
+ if (*bp2 == '?' && condp != NULL) {
*condp = bp2 + 1;
} else {
arg[argnum] = bp2;
argnum++;
}
}
- arg[argnum] = 0;
- for (fs = argnum + 1; fs < 16; fs++)
- arg[fs] = 0;
+ for (fs = argnum; fs < 128; fs++)
+ arg[fs] = NULL;
return argnum;
}