GS1 Syntax Dictionary: Linter reference
A reference to the AI component linter routines referred to by the GS1 Syntax Dictionary. Copyright (c) 2022-2024 GS1 AISBL.
lint_yyyymmdd.c File Reference

Purpose

The yyyymmdd linter ensures that the data represents a meaningful date, in YYYYMMDD format.

Functional Description

◆ gs1_lint_yyyymmdd()

GS1_SYNTAX_DICTIONARY_API gs1_lint_err_t gs1_lint_yyyymmdd ( const char *const  data,
size_t *const  err_pos,
size_t *const  err_len 
)

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

Parameters
[in]dataPointer to the null-terminated data to be linted. Must not be NULL.
[out]err_posTo facilitate error highlighting, the start position of the bad data is written to this pointer, if not NULL.
[out]err_lenThe 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 YYYYMMDD format.
GS1_LINTER_DATE_TOO_LONG if the data is too long for YYYYMMDD 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.
53{
54
55 const gs1_lint_err_t ret = gs1_lint_yyyymmd0(data, err_pos, err_len);
56
57 assert(ret == GS1_LINTER_OK ||
63
64 if (ret != GS1_LINTER_OK)
65 return ret;
66
67 if (data[6] == '0' && data[7] == '0') {
68 if (err_pos) *err_pos = 6;
69 if (err_len) *err_len = 2;
71 }
72
73 return GS1_LINTER_OK;
74
75}
GS1_SYNTAX_DICTIONARY_API gs1_lint_err_t gs1_lint_yyyymmd0(const char *data, size_t *err_pos, size_t *err_len)
Definition lint_yyyymmd0.c:54
gs1_lint_err_t
Linter return codes other than GS1_LINTER_OK indicate an error condition.
Definition gs1syntaxdictionary.h:65
@ GS1_LINTER_ILLEGAL_DAY
The date contains an illegal day of the month.
Definition gs1syntaxdictionary.h:102
@ GS1_LINTER_DATE_TOO_LONG
The date is too long for YYMMDD format.
Definition gs1syntaxdictionary.h:95
@ GS1_LINTER_ILLEGAL_MONTH
The date contains an illegal month of the year.
Definition gs1syntaxdictionary.h:101
@ GS1_LINTER_DATE_TOO_SHORT
The date is too short for YYMMDD format.
Definition gs1syntaxdictionary.h:94
@ GS1_LINTER_OK
No issues were detected by the linter.
Definition gs1syntaxdictionary.h:66
@ GS1_LINTER_NON_DIGIT_CHARACTER
A non-digit character was found where a digit is expected.
Definition gs1syntaxdictionary.h:67