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#include "hx_types.h"
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include "cmd.h"
#include "screen.h"
#include "hxlib.h"
#include "xmalloc.h"
#include "auto_array.h"
#define isquote(c) (c == '\'' || c == '\"')
#define killspace(_ptr) \
while (isspace(*(_ptr)))\
strcpy((_ptr), &((_ptr)[1]));
#define add_arg(_ptr) \
{ argv[argc++] = _ptr;\
if (argc >= 16) {\
if (argc == 16) {\
argv = xmalloc(sizeof(char *) * 17);\
memcpy(argv, auto_argv, sizeof(char *) * 16);\
} else\
argv = xrealloc(argv, ((sizeof(char *) * argc) + 1));\
} }
extern void chrexpand (char *p);
int
cmd_exec (char *str_ptr, int xpnd)
{
register char *p, *cur, c, quote = 0;
register int ret = 0, argc = 0, str_len = strlen(str_ptr);
char *auto_argv[16], **argv = auto_argv;
struct cmd *cmd;
auto_array(str_ptr, str, str_len);
killspace(str);
for (cur = p = str; (c = *p); p++) {
if (c == '\\' && xpnd) {
if (p[1])
chrexpand(p);
continue;
}
if (isquote(c)) {
if (quote == c) {
*p = 0;
add_arg(cur);
killspace(&(p[1]));
quote = 0;
cur = &(p[1]);
} else if (!quote) {
quote = c;
cur = &(p[1]);
}
} else if (!quote && isspace(c)) {
*p = 0;
add_arg(cur);
killspace(&(p[1]));
cur = &(p[1]);
}
}
if (p != cur)
add_arg(cur);
argv[argc] = 0;
if (!argv[0])
return -1;
cmd = cmd_lookup(argv[0]);
if (cmd == (struct cmd *)-1)
curscr_printf("\n%s: ambiguous command", argv[0]);
else if (!cmd)
curscr_printf("\n%s: command not found", argv[0]);
else if (cmd->main) {
auto_array(str_ptr, full_str, str_len);
if (xpnd)
strexpand(full_str);
ret = cmd->main(argc, argv, full_str);
auto_free(full_str);
}
if (argv != auto_argv)
xfree(argv);
auto_free(str);
return ret;
}
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