main.c

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#include "compiler.h"
#include "inputbuffer.h"
#include "vm.h"
 
#include <macros.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <types.h>
 
INTERNAL u8 r; 
 
INTERNAL inline void
print_prompt(void)
{
    printf("db > ");
}
 
int
main(void)
{
    InputBuffer *inbuf = new_input_buffer();
    if (inbuf == NULL) {
        exit(EXIT_FAILURE);
    }
 
    while (true) {
        print_prompt();
        read_input(inbuf);
 
        /* Handle Meta-Commands */
        if ('.' == inbuf->buffer[0]) {
            switch (do_meta_cmd(inbuf)) {
            case (META_CMD_SUCCESS):
                continue;
            case (META_COMMAND_UNRECOGNISED_CMD):
                r = fprintf(stderr, "Unrecognised command '%s'\n", inbuf->buffer);
                continue;
            }
        }
 
        /* Compile SQL Statement */
        Statement stmt;
        switch (prepare_statement(inbuf, &stmt)) {
        case (PREPARE_SUCCESS):
            break;
        case (PREPARE_UNRECOGNIZED_STATEMENT):
            r =
                fprintf(stderr,
                    "Unrecognised keyword at start of '%s'\n",
                    inbuf->buffer);
            continue;
        }
 
        /* Execute SQL Statement */
        execute_statement(&stmt);
    }
 
    return 0;
}