piquant/tests/basic_parser.c

#include "types.h"
#include "basic.h"
#include "string.h"
#include <stdio.h>

/* extern basic_line basic_memory_lines[BASIC_MAX_LINES]; */

int main(void)
{
    struct basic_expr *expr;
    char *line;
    /*struct basic_line *retline;
    struct basic_line *arrayline;*/

    /* Store a line */
/*    expr = basic_parse_expr("10 =1 + 1");
    if ( expr == NULL ) return 1;
    if ( expr->lval_type != BASIC_LVAL_CONST_INT ) return 2;
    if ( expr->rval_type != BASIC_RVAL_PTR ) return 3;
    if ( expr->lval.i != 10 ) return 4;
    if ( expr->rval.ptr == NULL ) return 5;
    if ( expr->type != BASIC_OPTP_STOR ) return 6;
*/
    /* Parse the stored line */
/*    retline = (basic_line *)expr->rval.ptr; 
    expr = basic_parse_expr(retline->content);*/
    expr = basic_parse_expr("1 + 1");
    if ( expr == NULL ) return 7;
    if ( expr->lval_type != BASIC_LVAL_CONST_INT ) return 8;
    if ( expr->rval_type != BASIC_RVAL_CONST_INT ) return 9;
    if ( expr->lval.i != 1 ) return 10;
    if ( expr->rval.i != 1 ) return 11;
    if ( expr->type != BASIC_OPTP_ADD ) return 12;

    line = "REM This is a comment that gets ignored";
    expr = basic_parse_expr(line);
    printf("%s\n", line);
    printf("token = %s\n", tokenizer_token());
    printf("errno = %d\n", basic_errno);
    if ( expr == NULL ) return 13;
    if ( expr->type != BASIC_OPTP_CMD ) return 14;
    if ( expr->lval_type != BASIC_LVAL_CMDPTR ) return 15;
    if ( expr->lval.cmd_ptr != &basic_cmd_rem ) return 16;

    line = "PRINT 10";
    expr = basic_parse_expr(line);
    printf("%s\n", line);
    printf("token = %s\n", tokenizer_token());
    printf("errno = %d\n", basic_errno);
    printf("rval.ptr = '%s'\n", (char *)expr->rval.ptr);
    if ( expr == NULL ) return 17;
    if ( expr->type != BASIC_OPTP_CMD ) return 18;
    if ( expr->lval_type != BASIC_LVAL_CMDPTR ) return 19;
    if ( expr->lval.cmd_ptr != &basic_cmd_print ) return 20;
    if ( expr->rval_type != BASIC_RVAL_PTR ) return 21;
    if ( expr->rval.ptr == NULL ) return 22;
    if ( strcmp((char *)expr->rval.ptr, " 10") != 0 ) return 23;

    line = " 10"; /* ... continuing logic from the previous */
    expr = basic_parse_expr(line);
    printf("%s\n", line);
    printf("token = %s\n", tokenizer_token());
    printf("errno = %d\n", basic_errno);
    printf("expr.type = %d\n", expr->type);
    printf("expr->lval_type = %d\n", expr->lval_type);
    if ( expr == NULL ) return 24;
    if ( expr->type != BASIC_OPTP_NONE ) return 25;
    if ( expr->lval_type != BASIC_LVAL_CONST_INT ) return 26;
    if ( expr->lval.i != 10 ) return 27;


/*
    arrayline = &basic_memory_lines[0];
    if ( retline != arrayline) return 13;
    printf("Line 10 in memory is %d : %s (%p)\n", arrayline->lineno, (char *)&arrayline->content, (void *)arrayline->nextline);
    if ( arrayline->lineno != 10 ) return 14;
    if ( strcmp((char *)&arrayline->content, "=1 + 1") != 0) return 15;
    if ( arrayline->nextline != NULL ) return 16;
*/
    return 0;
}