char *assign(char *name,char *value) {
if (!symtab) shellinit();
if (!value) {
HashTableRemove(symtab,name);
} else {
HashTableInsert(symtab,name,value);
}
return value;
}
main(){
// set environment variables
// set main settings
shellinit();
shellSplash();
// Disable interrupt signals, i.e., keyboard interrupts
signal(SIGINT, SIG_IGN);
while(1){
// shell loop
TURTLE_PROMPT;
yyparse();
execute_cmd();
}
// Exit gracefully
return 0;
}
char *var(char *name) {
char *ret;
if (!symtab) { shellinit(); return nullstring; }
ret = HashTableLookup(symtab,name);
return ret ? ret : nullstring;
}
