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Fix output of FNC1 in first position needed for GS1 #145

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Fix output of FNC1 in first position needed for GS1 #145

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15 changes: 14 additions & 1 deletion qrinput.c
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Original file line number Diff line number Diff line change
Expand Up @@ -729,6 +729,16 @@ static int QRinput_encodeModeStructure(QRinput_List *entry, BitStream *bstream,
* FNC1
*****************************************************************************/

static int QRinput_encodeModeFNC1First(BitStream *bstream)
{
int ret;

ret = BitStream_appendNum(bstream, 4, QRSPEC_MODEID_FNC1FIRST);
if(ret < 0) return -1;

return 0;
}

static int QRinput_checkModeFNC1Second(int size)
{
if(size != 1) return -1;
Expand Down Expand Up @@ -818,7 +828,7 @@ static int QRinput_encodeModeECI(QRinput_List *entry, BitStream *bstream)

int QRinput_check(QRencodeMode mode, int size, const unsigned char *data)
{
if((mode == QR_MODE_FNC1FIRST && size < 0) || size <= 0) return -1;
if(mode != QR_MODE_FNC1FIRST && size <= 0) return -1;

switch(mode) {
case QR_MODE_NUM:
Expand Down Expand Up @@ -1046,6 +1056,9 @@ static int QRinput_encodeBitStream(QRinput_List *entry, BitStream *bstream, int
case QR_MODE_ECI:
ret = QRinput_encodeModeECI(entry, bstream);
break;
case QR_MODE_FNC1FIRST:
ret = QRinput_encodeModeFNC1First(bstream);
break;
case QR_MODE_FNC1SECOND:
ret = QRinput_encodeModeFNC1Second(entry, bstream);
break;
Expand Down