GS1 Barcode Syntax Tests reference
A reference to the AI component "linter" routines referred to by the GS1 Barcode Syntax Dictionary. Copyright (c) 2022-2024 GS1 AISBL.
lint_hyphen.c File Reference

Purpose

The hyphen linter ensures that the given data contains only hyphens.

Functional Description

◆ gs1_lint_hyphen()

GS1_SYNTAX_DICTIONARY_API gs1_lint_err_t gs1_lint_hyphen ( const char *const  data,
size_t *const  err_pos,
size_t *const  err_len 
)

Used to validate that an AI component contains only hyphens.

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_NOT_HYPHEN if the data contains a non-hyphen character.
48{
49
50 const char *p;
51
52 assert(data);
53
54 if (GS1_LINTER_UNLIKELY(*data == '\0'))
57 0,
58 0
59 );
60
61 for (p = data; *p; p++)
62 if (GS1_LINTER_UNLIKELY(*p != '-')) {
63 while (*p) p++;
66 0,
67 (size_t)(p - data)
68 );
69 }
70
72
73}
#define GS1_LINTER_UNLIKELY(x)
Implemention may provide hint to the compiler that the expression is likely to be false.
Definition gs1syntaxdictionary-utils.h:76
#define GS1_LINTER_RETURN_ERROR(error, position, length)
Return from a linter indicating that a problem was detected with the given data.
Definition gs1syntaxdictionary-utils.h:103
#define GS1_LINTER_RETURN_OK
Return from a linter indicating that no problem was detected with the given data.
Definition gs1syntaxdictionary-utils.h:88
@ GS1_LINTER_NOT_HYPHEN
Only hyphens are permitted.
Definition gs1syntaxdictionary.h:187