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rename helper methods

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This commit is contained in:
Vukašin Stepanović
2023-02-15 12:52:59 +00:00
parent bfcdb397ad
commit 935519ced5
133 changed files with 858 additions and 1044 deletions
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65
src/qrcode/encoder/qrcode_encoder.rs
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@@ -100,9 +100,8 @@ pub fn encode_with_hints(
let mut has_encoding_hint = hints.contains_key(&EncodeHintType::CHARACTER_SET);
if has_encoding_hint {
if let Some(EncodeHintValue::CharacterSet(v)) = hints.get(&EncodeHintType::CHARACTER_SET) {
encoding = Some(
encoding::label::encoding_from_whatwg_label(v).ok_or(Exceptions::writerEmpty())?,
)
encoding =
Some(encoding::label::encoding_from_whatwg_label(v).ok_or(Exceptions::writer)?)
}
}
@@ -180,7 +179,7 @@ pub fn encode_with_hints(
version = Version::getVersionForNumber(versionNumber)?;
let bitsNeeded = calculateBitsNeeded(mode, &header_bits, &data_bits, version);
if !willFit(bitsNeeded, version, &ec_level) {
return Err(Exceptions::writer("Data too big for requested version"));
return Err(Exceptions::writerWith("Data too big for requested version"));
}
} else {
version = recommendVersion(&ec_level, mode, &header_bits, &data_bits)?;
@@ -388,7 +387,7 @@ fn chooseVersion(
return Ok(version);
}
}
Err(Exceptions::writer(format!(
Err(Exceptions::writerWith(format!(
"data too big {numInputBits}/{ecLevel:?}"
)))
}
@@ -416,7 +415,7 @@ pub fn willFit(numInputBits: u32, version: VersionRef, ecLevel: &ErrorCorrection
pub fn terminateBits(num_data_bytes: u32, bits: &mut BitArray) -> Result<(), Exceptions> {
let capacity = num_data_bytes * 8;
if bits.getSize() > capacity as usize {
return Err(Exceptions::writer(format!(
return Err(Exceptions::writerWith(format!(
"data bits cannot fit in the QR Code{capacity} > "
)));
}
@@ -444,7 +443,7 @@ pub fn terminateBits(num_data_bytes: u32, bits: &mut BitArray) -> Result<(), Exc
bits.appendBits(if (i & 0x01) == 0 { 0xEC } else { 0x11 }, 8)?;
}
if bits.getSize() != capacity as usize {
return Err(Exceptions::writer("Bits size does not equal capacity"));
return Err(Exceptions::writerWith("Bits size does not equal capacity"));
}
Ok(())
}
@@ -463,7 +462,7 @@ pub fn getNumDataBytesAndNumECBytesForBlockID(
// numECBytesInBlock: &mut [u32],
) -> Result<(u32, u32), Exceptions> {
if block_id >= num_rsblocks {
return Err(Exceptions::writer("Block ID too large"));
return Err(Exceptions::writerWith("Block ID too large"));
}
// numRsBlocksInGroup2 = 196 % 5 = 1
let num_rs_blocks_in_group2 = num_total_bytes % num_rsblocks;
@@ -484,18 +483,18 @@ pub fn getNumDataBytesAndNumECBytesForBlockID(
// Sanity checks.
// 26 = 26
if num_ec_bytes_in_group1 != numEcBytesInGroup2 {
return Err(Exceptions::writer("EC bytes mismatch"));
return Err(Exceptions::writerWith("EC bytes mismatch"));
}
// 5 = 4 + 1.
if num_rsblocks != num_rs_blocks_in_group1 + num_rs_blocks_in_group2 {
return Err(Exceptions::writer("RS blocks mismatch"));
return Err(Exceptions::writerWith("RS blocks mismatch"));
}
// 196 = (13 + 26) * 4 + (14 + 26) * 1
if num_total_bytes
!= ((num_data_bytes_in_group1 + num_ec_bytes_in_group1) * num_rs_blocks_in_group1)
+ ((num_data_bytes_in_group2 + numEcBytesInGroup2) * num_rs_blocks_in_group2)
{
return Err(Exceptions::writer("total bytes mismatch"));
return Err(Exceptions::writerWith("total bytes mismatch"));
}
Ok(if block_id < num_rs_blocks_in_group1 {
@@ -517,7 +516,7 @@ pub fn interleaveWithECBytes(
) -> Result<BitArray, Exceptions> {
// "bits" must have "getNumDataBytes" bytes of data.
if bits.getSizeInBytes() as u32 != num_data_bytes {
return Err(Exceptions::writer(
return Err(Exceptions::writerWith(
"Number of bits and data bytes does not match",
));
}
@@ -552,7 +551,7 @@ pub fn interleaveWithECBytes(
data_bytes_offset += numDataBytesInBlock as usize;
}
if num_data_bytes != data_bytes_offset as u32 {
return Err(Exceptions::writer("Data bytes does not match offset"));
return Err(Exceptions::writerWith("Data bytes does not match offset"));
}
let mut result = BitArray::new();
@@ -577,7 +576,7 @@ pub fn interleaveWithECBytes(
}
if num_total_bytes != result.getSizeInBytes() as u32 {
// Should be same.
return Err(Exceptions::writer(format!(
return Err(Exceptions::writerWith(format!(
"Interleaving error: {} and {} differ.",
num_total_bytes,
result.getSizeInBytes()
@@ -627,7 +626,7 @@ pub fn appendLengthInfo(
) -> Result<(), Exceptions> {
let numBits = mode.getCharacterCountBits(version);
if num_letters >= (1 << numBits) {
return Err(Exceptions::writer(format!(
return Err(Exceptions::writerWith(format!(
"{} is bigger than {}",
num_letters,
((1 << numBits) - 1)
@@ -650,7 +649,7 @@ pub fn appendBytes(
Mode::ALPHANUMERIC => appendAlphanumericBytes(content, bits),
Mode::BYTE => append8BitBytes(content, bits, encoding),
Mode::KANJI => appendKanjiBytes(content, bits),
_ => Err(Exceptions::writer(format!("Invalid mode: {mode:?}"))),
_ => Err(Exceptions::writerWith(format!("Invalid mode: {mode:?}"))),
}
}
@@ -658,22 +657,18 @@ pub fn appendNumericBytes(content: &str, bits: &mut BitArray) -> Result<(), Exce
let length = content.len();
let mut i = 0;
while i < length {
let num1 = content
.chars()
.nth(i)
.ok_or(Exceptions::indexOutOfBoundsEmpty())? as u8
- b'0';
let num1 = content.chars().nth(i).ok_or(Exceptions::indexOutOfBounds)? as u8 - b'0';
if i + 2 < length {
// Encode three numeric letters in ten bits.
let num2 = content
.chars()
.nth(i + 1)
.ok_or(Exceptions::indexOutOfBoundsEmpty())? as u8
.ok_or(Exceptions::indexOutOfBounds)? as u8
- b'0';
let num3 = content
.chars()
.nth(i + 2)
.ok_or(Exceptions::indexOutOfBoundsEmpty())? as u8
.ok_or(Exceptions::indexOutOfBounds)? as u8
- b'0';
bits.appendBits(num1 as u32 * 100 + num2 as u32 * 10 + num3 as u32, 10)?;
i += 3;
@@ -682,7 +677,7 @@ pub fn appendNumericBytes(content: &str, bits: &mut BitArray) -> Result<(), Exce
let num2 = content
.chars()
.nth(i + 1)
.ok_or(Exceptions::indexOutOfBoundsEmpty())? as u8
.ok_or(Exceptions::indexOutOfBounds)? as u8
- b'0';
bits.appendBits(num1 as u32 * 10 + num2 as u32, 7)?;
i += 2;
@@ -699,24 +694,20 @@ pub fn appendAlphanumericBytes(content: &str, bits: &mut BitArray) -> Result<(),
let length = content.len();
let mut i = 0;
while i < length {
let code1 = getAlphanumericCode(
content
.chars()
.nth(i)
.ok_or(Exceptions::indexOutOfBoundsEmpty())? as u32,
);
let code1 =
getAlphanumericCode(content.chars().nth(i).ok_or(Exceptions::indexOutOfBounds)? as u32);
if code1 == -1 {
return Err(Exceptions::writerEmpty());
return Err(Exceptions::writer);
}
if i + 1 < length {
let code2 = getAlphanumericCode(
content
.chars()
.nth(i + 1)
.ok_or(Exceptions::indexOutOfBoundsEmpty())? as u32,
.ok_or(Exceptions::indexOutOfBounds)? as u32,
);
if code2 == -1 {
return Err(Exceptions::writerEmpty());
return Err(Exceptions::writer);
}
// Encode two alphanumeric letters in 11 bits.
bits.appendBits((code1 as i16 * 45 + code2 as i16) as u32, 11)?;
@@ -737,7 +728,7 @@ pub fn append8BitBytes(
) -> Result<(), Exceptions> {
let bytes = encoding
.encode(content, encoding::EncoderTrap::Strict)
.map_err(|e| Exceptions::writer(format!("error {e}")))?;
.map_err(|e| Exceptions::writerWith(format!("error {e}")))?;
for b in bytes {
bits.appendBits(b as u32, 8)?;
}
@@ -749,9 +740,9 @@ pub fn appendKanjiBytes(content: &str, bits: &mut BitArray) -> Result<(), Except
let bytes = sjis
.encode(content, encoding::EncoderTrap::Strict)
.map_err(|e| Exceptions::writer(format!("error {e}")))?;
.map_err(|e| Exceptions::writerWith(format!("error {e}")))?;
if bytes.len() % 2 != 0 {
return Err(Exceptions::writer("Kanji byte size not even"));
return Err(Exceptions::writerWith("Kanji byte size not even"));
}
let max_i = bytes.len() - 1; // bytes.length must be even
let mut i = 0;
@@ -766,7 +757,7 @@ pub fn appendKanjiBytes(content: &str, bits: &mut BitArray) -> Result<(), Except
subtracted = code as i32 - 0xc140;
}
if subtracted == -1 {
return Err(Exceptions::writer("Invalid byte sequence"));
return Err(Exceptions::writerWith("Invalid byte sequence"));
}
let encoded = ((subtracted >> 8) * 0xc0) + (subtracted & 0xff);
bits.appendBits(encoded as u32, 13)?;