void *str_expr_gen_evaluate(str_expr *structure) {
pystr *retptr = (pystr *)malloc(sizeof(pystr));
retptr->type = pystr_t;
retptr->value = strdup(strslice(structure->value, 1, -1, 1));
return retptr;
}
V charat(utf8 source, utf8index curr)
{
return strslice(source, curr, nextchar(source, curr));
}
void initiate()
{
//Prompt Start
printf("\n:> ");
fgets(input,sizeof(input),stdin);
//----------------------------------------------------------------------------------------
//EXIT COMMAND
if((stricmp(input,"exit\n")==0)) //To exit command interpreter
{
main_exit();
}
//----------------------------------------------------------------------------------------
//----------------------------------------------------------------------------------------
//CLEAR SCREEN COMMAND
else if(stricmp(input,"clr\n")==0) //To clear screen
{
system("cls");
initiate();
}
//----------------------------------------------------------------------------------------
//----------------------------------------------------------------------------------------
//TIME COMMANDS
else if((stricmp(input,"time\n")==0)) //To show time (default format-24hr HH/MM/SS.MS)
{
sys_time_def();
initiate();
}
else if((stricmp(input,"time-24\n")==0)) //To show time in 24hrformat (HH:MM)
{
sys_time_24hr();
initiate();
}
else if((stricmp(input,"time-12\n")==0)) //To show time in 12hr format (HH:MM AM/PM)
{
sys_time_12hr();
initiate();
}
else if((stricmp(input,"time-e\n")==0)) //To show time and provide 'editing' option
{
system("time");
initiate();
}
//----------------------------------------------------------------------------------------
//----------------------------------------------------------------------------------------
//DATE COMMANDS
else if((stricmp(input,"date\n")==0)) //To show date (default format:MM/DD/YYYY)
{
sys_date_def();
initiate();
}
else if((stricmp(input,"date-e\n")==0)) //To show date and provide 'editing' option
{
system("date");
initiate();
}
//----------------------------------------------------------------------------------------
//----------------------------------------------------------------------------------------
//DAY COMMANDS
else if((stricmp(input,"day\n")==0)) //To show day/date of month
{
sys_day();
initiate();
}
else if((stricmp(input,"day-i\n")==0)) //To show complete day info
{
sys_day_info();
initiate();
}
//----------------------------------------------------------------------------------------
//----------------------------------------------------------------------------------------
// STRING MANIPULATION COMMANDS
else if((stricmp(input,"strln\n")==0)) // Returns length of String
{
strln();
initiate();
}
else if((stricmp(input,"strwht\n")==0)) // Returns no. of whitespaces in the String
{
strwht();
initiate();
}
else if((stricmp(input,"strslice\n")==0)) // Returns a SubString from the given String using mentioned indices
{
strslice();
initiate();
}
else if((stricmp(input,"strcap\n")==0)) // Capitalises the entered String
{
strcap();
initiate();
}
else if((stricmp(input,"strtolow\n")==0)) // Converts uppercase String to lowercase
{
strtolow();
initiate();
}
//----------------------------------------------------------------------------------------
else
{
printf("\aCommand not found.\n");
initiate();
}
}