lint_hasnondigit.c File Reference

Purpose

The hasnondigit linter ensures that the given data contains a non-digit character.

Functional Description

gs1_lint_hasnondigit()

GS1_SYNTAX_DICTIONARY_API gs1_lint_err_t gs1_lint_hasnondigit	(	const char *const	data,
		size_t	data_len,
		size_t *const	err_pos,
		size_t *const	err_len
	)

Used to validate that an AI component contains a non-digit character.

Parameters

[in]	data	Pointer to the data to be linted. Must not be NULL.
[in]	data_len	Length of the data to be linted.
[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_REQUIRES_NON_DIGIT_CHARACTER if the data does not contain a non-digit character.

{
 
        size_t pos;
 
        assert(data);
 
        /*
         * Data must not be all numeric
         *
         */
        for (pos = 0; pos < data_len; pos++)
                if (data[pos] < '0' || data[pos] > '9')
                        GS1_LINTER_RETURN_OK;
 
        GS1_LINTER_RETURN_ERROR(
                GS1_LINTER_REQUIRES_NON_DIGIT_CHARACTER,
                0,
                data_len
        );
 
}