lint_yymmdd.c File Reference

Purpose

The yymmdd linter ensures that the data represents a meaningful date, in YYMMDD format.

Functional Description

gs1_lint_yymmdd()

GS1_SYNTAX_DICTIONARY_API gs1_lint_err_t gs1_lint_yymmdd	(	const char *const	data,
		size_t *const	err_pos,
		size_t *const	err_len
	)

Used to ensure that an AI component conforms to the YYMMDD format.

Parameters

[in]	data	Pointer to the null-terminated data to be linted. Must not be NULL.
[out]	err_pos	To facilitate error highlighting, the start position of the bad data is written to this pointer, if not NULL.
[out]	err_len	The length of the bad data is written to this pointer, if not NULL.

Returns

GS1_LINTER_OK if okay.

GS1_LINTER_DATE_TOO_SHORT if the data is too short for YYMMDD format.

GS1_LINTER_DATE_TOO_LONG if the data is too long for YYMMDD format.

GS1_LINTER_NON_DIGIT_CHARACTER if the data contains a non-digit character.

GS1_LINTER_ILLEGAL_MONTH if the data contains an invalid month.

GS1_LINTER_ILLEGAL_DAY if the data contains an invalid day of the month.

{
 
        const gs1_lint_err_t ret = gs1_lint_yymmd0(data, err_pos, err_len);
 
        assert(ret == GS1_LINTER_OK ||
               ret == GS1_LINTER_DATE_TOO_SHORT ||
               ret == GS1_LINTER_DATE_TOO_LONG ||
               ret == GS1_LINTER_NON_DIGIT_CHARACTER ||
               ret == GS1_LINTER_ILLEGAL_MONTH ||
               ret == GS1_LINTER_ILLEGAL_DAY);
 
        if (ret != GS1_LINTER_OK)
                return ret;
 
        if (data[4] == '0' && data[5] == '0') {
                if (err_pos) *err_pos = 4;
                if (err_len) *err_len = 2;
                return GS1_LINTER_ILLEGAL_DAY;
        }
 
        return GS1_LINTER_OK;
 
}