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Add convenience API funcs ZBarcode_UTF8_To_ECI() and

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`ZBarcode_Dest_Len_ECI()`, primarily for ZXingC++ but also useful
  in general
This commit is contained in:
gitlost
2025-03-02 20:50:55 +00:00
parent 99f94b1027
commit d0465375bb
12 changed files with 647 additions and 167 deletions
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16
backend/zint.h
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@@ -141,7 +141,7 @@ extern "C" {
/* Segment for use with `ZBarcode_Encode_Segs()` below */
struct zint_seg {
unsigned char *source; /* Data to encode */
int length; /* Length of `source`. If 0, `source` must be NUL-terminated */
int length; /* Length of `source`. If 0 or negative, `source` must be NUL-terminated */
int eci; /* Extended Channel Interpretation */
};
@@ -405,7 +405,7 @@ extern "C" {
ZINT_EXTERN void ZBarcode_Delete(struct zint_symbol *symbol);
/* Encode a barcode. If `length` is 0, `source` must be NUL-terminated */
/* Encode a barcode. If `length` is 0 or negative, `source` must be NUL-terminated */
ZINT_EXTERN int ZBarcode_Encode(struct zint_symbol *symbol, const unsigned char *source, int length);
/* Encode a barcode with multiple ECI segments */
@@ -488,6 +488,18 @@ extern "C" {
const char *filetype);
/* Convert UTF-8 `source` of length `length` to `eci`-encoded `dest`, setting `p_dest_length` to length of `dest`
on output. If `length` is 0 or negative, `source` must be NUL-terminated. Returns 0 on success, else
ZINT_ERROR_INVALID_OPTION or ZINT_ERROR_INVALID_DATA. Compatible with libzueci `zueci_utf8_to_eci()` */
ZINT_EXTERN int ZBarcode_UTF8_To_ECI(int eci, const unsigned char *source, int length, unsigned char dest[],
int *p_dest_length);
/* Calculate sufficient length needed to convert UTF-8 `source` of length `length` from UTF-8 to `eci`, and place
in `p_dest_length`. If `length` is 0 or negative, `source` must be NUL-terminated. Returns 0 on success, else
ZINT_ERROR_INVALID_OPTION or ZINT_ERROR_INVALID_DATA. Compatible with libzueci `zueci_dest_len_eci()` */
ZINT_EXTERN int ZBarcode_Dest_Len_ECI(int eci, const unsigned char *source, int length, int *p_dest_length);
/* Whether Zint built without PNG support */
ZINT_EXTERN int ZBarcode_NoPng(void);