struct cmd*
parseexec(char **ps, char *es)
{
char *q, *eq;
int tok, argc;
struct execcmd *cmd;
struct cmd *ret;
ret = execcmd();
cmd = (struct execcmd*)ret;
argc = 0;
ret = parseredirs(ret, ps, es);
while(!peek(ps, es, "|")){
if((tok=gettoken(ps, es, &q, &eq)) == 0)
break;
if(tok != 'a') {
fprintf(stderr, "syntax error\n");
exit(-1);
}
cmd->argv[argc] = mkcopy(q, eq);
argc++;
if(argc >= MAXARGS) {
fprintf(stderr, "too many args\n");
exit(-1);
}
ret = parseredirs(ret, ps, es);
}
cmd->argv[argc] = 0;
return ret;
}
struct cmd*
parseexec(char **ps, char *es)
{
char *q, *eq;
int tok, argc;
struct execcmd *cmd;
struct cmd *ret;
if(peek(ps, es, "("))
return parseblock(ps, es);
ret = execcmd();
cmd = (struct execcmd*)ret;
argc = 0;
ret = parseredirs(ret, ps, es);
while(!peek(ps, es, "|)&;")){
if((tok=gettoken(ps, es, &q, &eq)) == 0)
break;
if(tok != 'a')
panic("syntax");
cmd->argv[argc] = q;
cmd->eargv[argc] = eq;
argc++;
if(argc >= MAXARGS)
panic("too many args");
ret = parseredirs(ret, ps, es);
}
cmd->argv[argc] = 0;
cmd->eargv[argc] = 0;
return ret;
}
struct cmd*
parseblock(char **ps, char *es) {
struct cmd *cmd;
if(!peek(ps, es, "("))
panic("parseblock");
gettoken(ps, es, 0, 0);
cmd = parseline(ps, es);
if(!peek(ps, es, ")"))
panic("syntax - missing )");
gettoken(ps, es, 0, 0);
cmd = parseredirs(cmd, ps, es);
return cmd;
}