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Issue 920 add ITF length 18, make C++ consistent with Java here

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git-svn-id: https://zxing.googlecode.com/svn/trunk@1862 59b500cc-1b3d-0410-9834-0bbf25fbcc57
This commit is contained in:
srowen 2011-07-23 14:09:14 +00:00
parent 13fcdc4ffa
commit 7daf9dc760
1 changed files with 8 additions and 4 deletions
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12
cpp/core/src/zxing/oned/ITFReader.cpp
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@ -29,7 +29,8 @@ namespace zxing {
static const int W = 3; // Pixel width of a wide line
static const int N = 1; // Pixed width of a narrow line
const int DEFAULT_ALLOWED_LENGTHS[4] = { 6, 10, 14, 44 };
const int DEFAULT_ALLOWED_LENGTHS_LEN = 10;
const int DEFAULT_ALLOWED_LENGTHS[DEFAULT_ALLOWED_LENGTHS_LEN] = { 44, 24, 20, 18, 16, 14, 12, 10, 8, 6 };
/**
* Start/end guard pattern.
@ -77,11 +78,14 @@ namespace zxing {
decodeMiddle(row, startRange[1], endRange[0], tmpResult);
// To avoid false positives with 2D barcodes (and other patterns), make
// an assumption that the decoded string must be 6, 10 or 14 digits.
// an assumption that the decoded string must be a known length
int length = tmpResult.length();
bool lengthOK = false;
if (length == 6 || length == 10 || length == 14) {
lengthOK = true;
for (int i = 0; i < DEFAULT_ALLOWED_LENGTHS_LEN; i++) {
if (length == DEFAULT_ALLOWED_LENGTHS[i]) {
lengthOK = true;
break;
}
}
if (!lengthOK) {
throw ReaderException("not enough characters count");