msb-public
/
QR-Code-generator
mirror of https://github.com/nayuki/QR-Code-generator
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Tweaked section comments and blank lines for better uniformity across all language versions.

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pull/4/head
Nayuki Minase 9 years ago
parent a8d8b6ddbe
commit 1df147943e
6 changed files with 51 additions and 30 deletions
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4
cpp/QrCode.hpp
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@ -225,7 +225,7 @@ private:
/*---- Static helper functions ----*/
/*---- Private static helper functions ----*/
private:
// Returns a set of positions of the alignment patterns in ascending order. These positions are
@ -246,7 +246,7 @@ private:
static int getNumDataCodewords(int ver, const Ecc &ecl);
/*---- Tables of constants ----*/
/*---- Private tables of constants ----*/
private:
// For use in getPenaltyScore(), when evaluating which mask is best.

16
cpp/QrSegment.hpp
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@ -47,8 +47,10 @@ class QrSegment final {
*/
public:
class Mode final {
// Constants.
/*-- Constants --*/
public:
static const Mode NUMERIC;
static const Mode ALPHANUMERIC;
static const Mode BYTE;
@ -65,23 +67,25 @@ public:
int numBitsCharCount[3];
// Constructor.
/*-- Constructor --*/
private:
Mode(int mode, int cc0, int cc1, int cc2);
/*-- Method --*/
public:
/*
* Returns the bit width of the segment character count field for this mode object at the given version number.
*/
public:
int numCharCountBits(int ver) const;
};
/*---- Static factory functions ----*/
/*---- Public static factory functions ----*/
public:
/*
@ -110,7 +114,7 @@ public:
static std::vector<QrSegment> makeSegments(const char *text);
/*---- Static helper functions ----*/
/*---- Public static helper functions ----*/
public:
/*
@ -155,7 +159,7 @@ public:
static int getTotalBits(const std::vector<QrSegment> &segs, int version);
/*---- Constant ----*/
/*---- Private constant ----*/
private:
static const int8_t ALPHANUMERIC_ENCODING_TABLE[59];

4
java/io/nayuki/qrcodegen/QrCode.java
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@ -652,7 +652,7 @@ public final class QrCode {
/*---- Static helper functions ----*/
/*---- Private static helper functions ----*/
// Returns a set of positions of the alignment patterns in ascending order. These positions are
// used on both the x and y axes. Each value in the resulting array is in the range [0, 177).
@ -715,7 +715,7 @@ public final class QrCode {
}
/*---- Tables of constants ----*/
/*---- Private tables of constants ----*/
// For use in getPenaltyScore(), when evaluating which mask is best.
private static final int PENALTY_N1 = 3;

8
java/io/nayuki/qrcodegen/QrSegment.java
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@ -230,7 +230,9 @@ public final class QrSegment {
* The mode field of a segment. Immutable. Provides methods to retrieve closely related values.
*/
public enum Mode {
// Constants.
/*-- Constants --*/
NUMERIC (0x1, 10, 12, 14),
ALPHANUMERIC(0x2, 9, 11, 13),
BYTE (0x4, 8, 16, 16),
@ -245,7 +247,8 @@ public final class QrSegment {
private final int[] numBitsCharCount;
// Constructor.
/*-- Constructor --*/
private Mode(int mode, int... ccbits) {
this.modeBits = mode;
numBitsCharCount = ccbits;
@ -266,6 +269,7 @@ public final class QrSegment {
else if (27 <= ver && ver <= 40) return numBitsCharCount[2];
else throw new IllegalArgumentException("Version number out of range");
}
}
}

37
javascript/qrcodegen.js
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@ -79,7 +79,7 @@ var qrcodegen = new function() {
*/
this.QrCode = function(initData, mask, version, errCorLvl) {
/*-- Constructor --*/
/*---- Constructor ----*/
// Handle simple scalar fields
if (mask < -1 || mask > 7)
@ -141,7 +141,8 @@ var qrcodegen = new function() {
drawFormatBits(mask); // Overwrite old format bits
applyMask(mask); // Apply the final choice of mask
// Define read-only properties
/*---- Read-only instance properties ----*/
// This QR Code symbol's version number, which is always between 1 and 40 (inclusive).
Object.defineProperty(this, "version", {value:version});
@ -160,7 +161,7 @@ var qrcodegen = new function() {
Object.defineProperty(this, "mask", {value:mask});
/*-- Accessor methods --*/
/*---- Accessor methods ----*/
// Returns the color of the module (pixel) at the given coordinates, which is either 0 for white or 1 for black. The top
// left corner has the coordinates (x=0, y=0). If the given coordinates are out of bounds, then 0 (white) is returned.
@ -181,7 +182,7 @@ var qrcodegen = new function() {
};
/*-- Public instance methods --*/
/*---- Public instance methods ----*/
// Based on the given number of border modules to add as padding, this returns a
// string whose contents represents an SVG XML file that depicts this QR Code symbol.
@ -211,7 +212,7 @@ var qrcodegen = new function() {
};
/*-- Private helper methods for constructor: Drawing function modules --*/
/*---- Private helper methods for constructor: Drawing function modules ----*/
function drawFunctionPatterns() {
// Draw the horizontal and vertical timing patterns
@ -530,6 +531,7 @@ var qrcodegen = new function() {
return this.encodeSegments([seg], ecl);
};
/*
* Returns a QR Code symbol representing the specified data segments with the specified encoding parameters.
* The smallest possible QR Code version within the specified range is automatically chosen for the output.
@ -586,10 +588,11 @@ var qrcodegen = new function() {
};
/*---- Private static helper functions ----*/
/*---- Private static helper functions QrCode ----*/
var QrCode = {}; // Private object to assign properties to
// Returns a sequence of positions of the alignment patterns in ascending order. These positions are
// used on both the x and y axes. Each value in the resulting sequence is in the range [0, 177).
// This stateless pure function could be implemented as table of 40 variable-length lists of integers.
@ -616,6 +619,7 @@ var qrcodegen = new function() {
}
};
// Returns the number of raw data modules (bits) available at the given version number.
// These data modules are used for both user data codewords and error correction codewords.
// This stateless pure function could be implemented as a 40-entry lookup table.
@ -632,6 +636,7 @@ var qrcodegen = new function() {
return result;
};
// Returns the number of 8-bit data (i.e. not error correction) codewords contained in any
// QR Code of the given version number and error correction level, with remainder bits discarded.
// This stateless pure function could be implemented as a (40*4)-cell lookup table.
@ -642,7 +647,7 @@ var qrcodegen = new function() {
};
/*---- Tables of constants ----*/
/*---- Private tables of constants for QrCode ----*/
// For use in getPenaltyScore(), when evaluating which mask is best.
QrCode.PENALTY_N1 = 3;
@ -669,12 +674,14 @@ var qrcodegen = new function() {
];
// Private constructor for the enum.
/*---- Public helper enumeration ----*/
function Ecc(ord, fb) {
Object.defineProperty(this, "ordinal", {value:ord});
Object.defineProperty(this, "formatBits", {value:fb});
}
/*
* A public helper enumeration that represents the error correction level used in a QR Code symbol.
* The fields 'ordinal' and 'formatBits' are in the range 0 to 3 (unsigned 2-bit integer).
@ -715,7 +722,8 @@ var qrcodegen = new function() {
};
};
/*-- Public static factory functions --*/
/*---- Public static factory functions for QrSegment ----*/
// Returns a segment representing the given binary data encoded in byte mode.
this.QrSegment.makeBytes = function(data) {
@ -726,6 +734,7 @@ var qrcodegen = new function() {
return new this(this.Mode.BYTE, data.length, bb.getBits());
};
// Returns a segment representing the given string of decimal digits encoded in numeric mode.
this.QrSegment.makeNumeric = function(digits) {
if (!QrSegment.NUMERIC_REGEX.test(digits))
@ -757,6 +766,7 @@ var qrcodegen = new function() {
return new this(this.Mode.ALPHANUMERIC, text.length, bb.getBits());
};
/*
* Returns a new mutable list of zero or more segments to represent the given Unicode text string.
* The result may use various segment modes and switch modes to optimize the length of the bit stream.
@ -773,6 +783,7 @@ var qrcodegen = new function() {
return [this.makeBytes(toUtf8ByteArray(text))];
};
// Package-private helper function.
this.QrSegment.getTotalBits = function(segs, version) {
if (version < 1 || version > 40)
@ -789,7 +800,8 @@ var qrcodegen = new function() {
return result;
};
/*-- Constants --*/
/*---- Constants for QrSegment ----*/
var QrSegment = {}; // Private object to assign properties to
@ -807,6 +819,8 @@ var qrcodegen = new function() {
];
/*---- Public helper enumeration ----*/
/*
* A public helper enumeration that represents the mode field of a segment.
* Objects are immutable. Provides methods to retrieve closely related values.
@ -818,6 +832,7 @@ var qrcodegen = new function() {
KANJI : new Mode(0x8, [ 8, 10, 12]),
};
// Private constructor for the enum.
function Mode(mode, ccbits) {
// An unsigned 4-bit integer value (range 0 to 15) representing the mode indicator bits for this mode object.
@ -929,8 +944,6 @@ var qrcodegen = new function() {
// Array of bits; each item is the integer 0 or 1
var bitData = [];
/*-- Methods --*/
// Returns the number of bits in the buffer, which is a non-negative value.
this.bitLength = function() {
return bitData.length;

12
python/qrcodegen.py
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@ -541,7 +541,7 @@ class QrCode(object):
return QrCode._get_num_raw_data_modules(ver) // 8 - QrCode._NUM_ERROR_CORRECTION_CODEWORDS[ecl.ordinal][ver]
# ---- Tables of constants ----
# ---- Private tables of constants ----
# For use in getPenaltyScore(), when evaluating which mask is best.
_PENALTY_N1 = 3
@ -604,7 +604,7 @@ class QrSegment(object):
Even in the most favorable conditions, a QR Code can only hold 7089 characters of data.
Any segment longer than this is meaningless for the purpose of generating QR Codes."""
# -- Public static factory functions --
# ---- Public static factory functions ----
@staticmethod
def make_bytes(data):
@ -665,7 +665,7 @@ class QrSegment(object):
return [QrSegment.make_bytes(text.encode("UTF-8"))]
# -- Constructor --
# ---- Constructor ----
def __init__(self, mode, numch, bitdata):
if numch < 0 or not isinstance(mode, QrSegment.Mode):
@ -675,7 +675,7 @@ class QrSegment(object):
self._bitdata = list(bitdata) # Defensive copy
# -- Accessor methods --
# ---- Accessor methods ----
def get_mode(self):
return self._mode
@ -702,7 +702,7 @@ class QrSegment(object):
return result
# -- Constants --
# ---- Constants ----
# Can test whether a string is encodable in numeric mode (such as by using make_numeric())
NUMERIC_REGEX = re.compile("[0-9]*$")
@ -714,7 +714,7 @@ class QrSegment(object):
ALPHANUMERIC_ENCODING_TABLE = {ch: i for (i, ch) in enumerate("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ $%*+-./:")}
# -- Helper enumeration --
# ---- Public helper enumeration ----
class Mode(object):
"""The mode field of a segment. Immutable. Provides methods to retrieve closely related values."""

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