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Diffstat (limited to 'utils/platforms/default/lib/binary.js')
| -rwxr-xr-x | utils/platforms/default/lib/binary.js | 719 |
1 files changed, 0 insertions, 719 deletions
diff --git a/utils/platforms/default/lib/binary.js b/utils/platforms/default/lib/binary.js deleted file mode 100755 index 7c19b80..0000000 --- a/utils/platforms/default/lib/binary.js +++ /dev/null @@ -1,719 +0,0 @@ -/* Binary */ - -var B_ALLOC = require("binary-platform").B_ALLOC, - B_LENGTH = require("binary-platform").B_LENGTH, - B_GET = require("binary-platform").B_GET, - B_SET = require("binary-platform").B_SET, - B_FILL = require("binary-platform").B_FILL, - B_COPY = require("binary-platform").B_COPY, - B_DECODE = require("binary-platform").B_DECODE, - B_ENCODE = require("binary-platform").B_ENCODE, - B_DECODE_DEFAULT = require("binary-platform").B_DECODE_DEFAULT, - B_ENCODE_DEFAULT = require("binary-platform").B_ENCODE_DEFAULT, - B_TRANSCODE = require("binary-platform").B_TRANSCODE; - -var Binary = exports.Binary = function() { - // this._bytes - // this._offset - // this._length -}; - -Binary.prototype.__defineGetter__("length", function() { return this._length; }); -Binary.prototype.__defineSetter__("length", function(length) { print("x trying to set length: " + length); }); - -// toArray() - n array of the byte values -// toArray(charset) - an array of the code points, decoded -Binary.prototype.toArray = function(codec) { - if (arguments.length === 0) { - var array = new Array(this._length); - - for (var i = 0; i < this.length; i++) - array[i] = this.get(i); - - return array; - } - else if (arguments.length === 1) { - var string = new java.lang.String(this._bytes, this._offset, this._length, codec), - length = string.length(), - array = new Array(length); - - for (var i = 0; i < length; i++) - array[i] = string.codePointAt(i); - - return array; - } - else - throw new Error("Illegal arguments to toArray()"); -}; - -// toByteArray() - just a copy -// toByteArray(sourceCharset, targetCharset) - transcoded -Binary.prototype.toByteArray = function(sourceCodec, targetCodec) { - if (arguments.length < 2) - return new ByteArray(this); - else if (arguments.length === 2 && typeof sourceCodec === "string" && typeof targetCodec === "string") { - var bytes = B_TRANSCODE(this._bytes, this._offset, this._length, sourceCodec, targetCodec); - return new ByteArray(bytes, 0, B_LENGTH(bytes)); - } - - throw new Error("Illegal arguments to ByteArray toByteArray"); -}; - -// toByteString() - byte for byte copy -// toByteString(sourceCharset, targetCharset) - transcoded -Binary.prototype.toByteString = function(sourceCodec, targetCodec) { - if (arguments.length < 2) - return new ByteString(this); - else if (arguments.length === 2 && typeof sourceCodec === "string" && typeof targetCodec === "string") { - var bytes = B_TRANSCODE(this._bytes, this._offset, this._length, sourceCodec, targetCodec); - return new ByteString(bytes, 0, B_LENGTH(bytes)); - } - - throw new Error("Illegal arguments to ByteArray toByteString"); -}; - -// decodeToString() -// decodeToString(charset) - returns a String from its decoded bytes in a given charset. If no charset is provided, or if the charset is "undefined", assumes the default system encoding. -// decodeToString(number) - returns a String from its decoded bytes in a given base, like 64, 32, 16, 8, 2 -Binary.prototype.decodeToString = function(charset) { - if (charset) { - if (typeof charset == "number") - return require("base" + charset).encode(this); - else if (charset.begins("base")) - return require(charset).encode(this); - else - return B_DECODE(this._bytes, this._offset, this._length, charset); - } - return B_DECODE_DEFAULT(this._bytes, this._offset, this._length); -}; - -// get(offset) - Return the byte at offset as a Number. -Binary.prototype.get = function(offset) { - if (offset < 0 || offset >= this._length) - return NaN; - - //var b = this._bytes[this._offset + offset]; - //return (b >= 0) ? b : -1 * ((b ^ 0xFF) + 1); - return B_GET(this._bytes, this._offset + offset) -}; - -Binary.prototype.indexOf = function(byteValue, start, stop) { - // HACK: use ByteString's slice since we know we won't be modifying result - var array = ByteString.prototype.slice.apply(this, [start, stop]).toArray(), - result = array.indexOf(byteValue); - return (result < 0) ? -1 : result + (start || 0); -}; - -Binary.prototype.lastIndexOf = function(byteValue, start, stop) { - // HACK: use ByteString's slice since we know we won't be modifying result - var array = ByteString.prototype.slice.apply(this, [start, stop]).toArray(), - result = array.lastIndexOf(byteValue); - return (result < 0) ? -1 : result + (start || 0); -}; - -// valueOf() -Binary.prototype.valueOf = function() { - return this; -}; - -/* ByteString */ - -var ByteString = exports.ByteString = function() { - if (!(this instanceof ByteString)) { - if (arguments.length == 0) - return new ByteString(); - if (arguments.length == 1) - return new ByteString(arguments[0]); - if (arguments.length == 2) - return new ByteString(arguments[0], arguments[1]); - if (arguments.length == 3) - return new ByteString(arguments[0], arguments[1], arguments[2]); - } - - // ByteString() - Construct an empty byte string. - if (arguments.length === 0) { - this._bytes = B_ALLOC(0); // null; - this._offset = 0; - this._length = 0; - } - // ByteString(byteString) - Copies byteString. - else if (arguments.length === 1 && arguments[0] instanceof ByteString) { - return arguments[0]; - } - // ByteString(byteArray) - Use the contents of byteArray. - else if (arguments.length === 1 && arguments[0] instanceof ByteArray) { - var copy = arguments[0].toByteArray(); - this._bytes = copy._bytes; - this._offset = copy._offset; - this._length = copy._length; - } - // ByteString(arrayOfNumbers) - Use the numbers in arrayOfNumbers as the bytes. - else if (arguments.length === 1 && Array.isArray(arguments[0])) { - var array = arguments[0]; - this._bytes = B_ALLOC(array.length); - for (var i = 0; i < array.length; i++) { - var b = array[i]; - // If any element is outside the range 0...255, an exception (TODO) is thrown. - if (b < -0x80 || b > 0xFF) - throw new Error("ByteString constructor argument Array of integers must be -128 - 255 ("+b+")"); - // Java "bytes" are interpreted as 2's complement - //this._bytes[i] = (b < 128) ? b : -1 * ((b ^ 0xFF) + 1); - B_SET(this._bytes, i, b); - } - this._offset = 0; - this._length = B_LENGTH(this._bytes); - } - // ByteString(string, charset) - Convert a string. The ByteString will contain string encoded with charset. - else if ((arguments.length === 1 || (arguments.length === 2 && arguments[1] === undefined)) && typeof arguments[0] === "string") { - this._bytes = B_ENCODE_DEFAULT(arguments[0]); - this._offset = 0; - this._length = B_LENGTH(this._bytes); - } - else if (arguments.length === 2 && typeof arguments[0] === "string" && typeof arguments[1] === "string") { - this._bytes = B_ENCODE(arguments[0], arguments[1]); - this._offset = 0; - this._length = B_LENGTH(this._bytes); - } - // private: ByteString(bytes, offset, length) - else if (arguments.length === 3 && typeof arguments[1] === "number" && typeof arguments[2] === "number") { - this._bytes = arguments[0]; - this._offset = arguments[1]; - this._length = arguments[2]; - } - else - throw new Error("Illegal arguments to ByteString constructor: [" + - Array.prototype.join.apply(arguments, [","]) + "] ("+arguments.length+")"); - - //seal(this); -}; - -ByteString.prototype = new Binary(); - -ByteString.prototype.__defineGetter__("length", function() { return this._length; }); -ByteString.prototype.__defineSetter__("length", function(length) {}); - -// toByteArray() - Returns a byte for byte copy in a ByteArray. -// toByteArray(sourceCharset, targetCharset) - Returns a transcoded copy in a ByteArray. -// - implemented on Binary - -// toByteString() - Returns itself, since there's no need to copy an immutable ByteString. -// toByteString(sourceCharset, targetCharset) - Returns a transcoded copy. -// - implemented on Binary - -// toArray() - Returns an array containing the bytes as numbers. -// toArray(charset) - Returns an array containing the decoded Unicode code points. -// - implemented on Binary - -// toString() -ByteString.prototype.toString = function(charset) { - if (charset) - return this.decodeToString(charset); - - return "[ByteString "+this.length+"]"; -}; - -// decodeToString(charset) - Returns the decoded ByteArray as a string. -// - implemented on Binary - -ByteString.prototype.byteAt = -ByteString.prototype.charAt = function(offset) { - var byteValue = this.get(offset); - - if (isNaN(byteValue)) - return new ByteString(); - - return new ByteString([byteValue]); -}; - -// indexOf() - implemented on Binary -// lastIndexOf() - implemented on Binary - -// charCodeAt(offset) -ByteString.prototype.charCodeAt = Binary.prototype.get; - -// get(offset) - implemented on Binary - -// byteAt(offset) ByteString - implemented on Binary -// charAt(offset) ByteString - implemented on Binary - -// split(delimiter, [options]) -ByteString.prototype.split = function(delimiters, options) { - var options = options || {}, - count = options.count === undefined ? -1 : options.count, - includeDelimiter = options.includeDelimiter || false; - - // standardize delimiters into an array of ByteStrings: - if (!Array.isArray(delimiters)) - delimiters = [delimiters]; - - delimiters = delimiters.map(function(delimiter) { - if (typeof delimiter === "number") - delimiter = [delimiter]; - return new ByteString(delimiter); - }); - - var components = [], - startOffset = this._offset, - currentOffset = this._offset; - - // loop until there's no more bytes to consume - bytes_loop : - while (currentOffset < this._offset + this._length) { - - // try each delimiter until we find a match - delimiters_loop : - for (var i = 0; i < delimiters.length; i++) { - var d = delimiters[i]; - - for (var j = 0; j < d._length; j++) { - // reached the end of the bytes, OR bytes not equal - if (currentOffset + j > this._offset + this._length || - B_GET(this._bytes, currentOffset + j) !== B_GET(d._bytes, d._offset + j)) { - continue delimiters_loop; - } - } - - // push the part before the delimiter - components.push(new ByteString(this._bytes, startOffset, currentOffset - startOffset)); - - // optionally push the delimiter - if (includeDelimiter) - components.push(new ByteString(this._bytes, currentOffset, d._length)) - - // reset the offsets - startOffset = currentOffset = currentOffset + d._length; - - continue bytes_loop; - } - - // if there was no match, increment currentOffset to try the next one - currentOffset++; - } - - // push the remaining part, if any - if (currentOffset > startOffset) - components.push(new ByteString(this._bytes, startOffset, currentOffset - startOffset)); - - return components; -}; - -// slice() -// slice(begin) -// slice(begin, end) -ByteString.prototype.slice = function(begin, end) { - if (begin === undefined) - begin = 0; - else if (begin < 0) - begin = this._length + begin; - - if (end === undefined) - end = this._length; - else if (end < 0) - end = this._length + end; - - begin = Math.min(this._length, Math.max(0, begin)); - end = Math.min(this._length, Math.max(0, end)); - - return new ByteString(this._bytes, this._offset + begin, end - begin); -}; - -// substr(start) -// substr(start, length) -ByteString.prototype.substr = function(start, length) { - if (start !== undefined) { - if (length !== undefined) - return this.slice(start); - else - return this.slice(start, start + length); - } - return this.slice(); -}; - -// substring(first) -// substring(first, last) -ByteString.prototype.substring = function(from, to) { - if (from !== undefined) { - if (to !== undefined) - return this.slice(Math.max(Math.min(begin, this._length), 0)); - else - return this.slice(Math.max(Math.min(begin, this._length), 0), - Math.max(Math.min(end, this._length), 0)); - } - return this.slice(); -}; - -// [] ByteString - TODO - -// toSource() -ByteString.prototype.toSource = function() { - return "ByteString(["+this.toArray().join(",")+"])"; -}; - -/* ByteArray */ - -// ByteArray() - New, empty ByteArray. -// ByteArray(length) - New ByteArray filled with length zero bytes. -// ByteArray(byteArray) - Copy byteArray. -// ByteArray(byteString) - Copy contents of byteString. -// ByteArray(arrayOfBytes) - Use numbers in arrayOfBytes as contents. -// Throws an exception if any element is outside the range 0...255 (TODO). -// ByteArray(string, charset) - Create a ByteArray from a Javascript string, the result being encoded with charset. -var ByteArray = exports.ByteArray = function() { - if (!this instanceof ByteArray) { - if (arguments.length == 0) - return new ByteArray(); - if (arguments.length == 1) - return new ByteArray(arguments[0]); - if (arguments.length == 2) - return new ByteArray(arguments[0], arguments[1]); - if (arguments.length == 3) - return new ByteArray(arguments[0], arguments[1], arguments[2]); - } - - // ByteArray() - New, empty ByteArray. - if (arguments.length === 0) { - this._bytes = B_ALLOC(0); // null; - this._offset = 0; - this._length = 0; - } - // ByteArray(length) - New ByteArray filled with length zero bytes. - else if (arguments.length === 1 && typeof arguments[0] === "number") { - this._bytes = B_ALLOC(arguments[0]); // null; - this._offset = 0; - this._length = B_LENGTH(this._bytes); - } - // ByteArray(byteArray) - Copy byteArray. - // ByteArray(byteString) - Copy contents of byteString. - else if (arguments.length === 1 && (arguments[0] instanceof ByteArray || arguments[0] instanceof ByteString)) { - var byteArray = new ByteArray(arguments[0]._length); - B_COPY(arguments[0]._bytes, arguments[0]._offset, byteArray._bytes, byteArray._offset, byteArray._length); - return byteArray; - } - // ByteArray(arrayOfBytes) - Use numbers in arrayOfBytes as contents. - // Throws an exception if any element is outside the range 0...255 (TODO). - else if (arguments.length === 1 && Array.isArray(arguments[0])) { - var array = arguments[0]; - this._bytes = B_ALLOC(array.length); - for (var i = 0; i < array.length; i++) { - var b = array[i]; - // If any element is outside the range 0...255, an exception (TODO) is thrown. - if (b < 0 || b > 0xFF) - throw new Error("ByteString constructor argument Array of integers must be 0 - 255 ("+b+")"); - // Java "bytes" are interpreted as 2's complement - //this._bytes[i] = (b < 128) ? b : -1 * ((b ^ 0xFF) + 1); - B_SET(this._bytes, i, b); - } - this._offset = 0; - this._length = B_LENGTH(this._bytes); - } - // ByteArray(string, charset) - Create a ByteArray from a Javascript string, the result being encoded with charset. - else if ((arguments.length === 1 || (arguments.length === 2 && arguments[1] === undefined)) && typeof arguments[0] === "string") { - this._bytes = B_ENCODE_DEFAULT(arguments[0]); - this._offset = 0; - this._length = B_LENGTH(this._bytes); - } - else if (arguments.length === 2 && typeof arguments[0] === "string" && typeof arguments[1] === "string") { - this._bytes = B_ENCODE(arguments[0], arguments[1]); - this._offset = 0; - this._length = B_LENGTH(this._bytes); - } - // private: ByteArray(bytes, offset, length) - else if (arguments.length === 3 && typeof arguments[1] === "number" && typeof arguments[2] === "number") { - this._bytes = arguments[0]; - this._offset = arguments[1]; - this._length = arguments[2]; - } - else - throw new Error("Illegal arguments to ByteString constructor: [" + - Array.prototype.join.apply(arguments, [","]) + "] ("+arguments.length+")"); -}; - -ByteArray.prototype = new Binary(); - -ByteArray.prototype.__defineGetter__("length", function() { return this._length; }); -ByteArray.prototype.__defineSetter__("length", function(length) { - if (typeof length !== "number") - return; - - // same length - if (length === this.length) { - return; - } - // new length is less, truncate - else if (length < this._length) { - this._length = length; - } - // new length is more, but fits without moving, just clear new bytes - else if (this._offset + length <= B_LENGTH(this._bytes)) { - B_FILL(this._bytes, this._length, this._offset + length - 1, 0); - this._length = length; - } - // new length is more, but fits if we shift to bottom, so do that. - else if (length <= B_LENGTH(this._bytes)) { - B_COPY(this._bytes, this._offset, this._bytes, 0, this._length); - this._offset = 0; - B_FILL(this._bytes, this._length, this._offset + length - 1, 0); - this._length = length; - } - // new length is more than the allocated bytes array, allocate a new one and copy the data - else { - var newBytes = B_ALLOC(length); - B_COPY(this._bytes, this._offset, newBytes, 0, this._length); - this._bytes = newBytes; - this._offset = 0; - this._length = length; - } -}); - -// FIXME: array notation for set and get -ByteArray.prototype.set = function(index, b) { - // If any element is outside the range 0...255, an exception (TODO) is thrown. - if (b < 0 || b > 0xFF) - throw new Error("ByteString constructor argument Array of integers must be 0 - 255 ("+b+")"); - - if (index < 0 || index >= this._length) - throw new Error("Out of range"); - - // Java "bytes" are interpreted as 2's complement - //this._bytes[this._offset + index] = (b < 128) ? b : -1 * ((b ^ 0xFF) + 1); - B_SET(this._bytes, this._offset + index, b); -}; - -// toArray() -// toArray(charset) -// - implemented on Binary - -// toByteArray() - just a copy -// toByteArray(sourceCharset, targetCharset) - transcoded -// - implemented on Binary - -// toByteString() - byte for byte copy -// toByteString(sourceCharset, targetCharset) - transcoded -// - implemented on Binary - -// toString() - a string representation like "[ByteArray 10]" -// toString(charset) - an alias for decodeToString(charset) -ByteArray.prototype.toString = function(charset) { - if (charset) - return this.decodeToString(charset); - - return "[ByteArray "+this.length+"]"; -}; - -// decodeToString(charset) - implemented on Binary - -// byteAt(offset) ByteString - Return the byte at offset as a ByteString. -// - implemented on Binary - -// get(offset) Number - Return the byte at offset as a Number. -// - implemented on Binary - -// concat(other ByteArray|ByteString|Array) -// TODO: I'm assuming Array means an array of ByteStrings/ByteArrays, not an array of integers. -ByteArray.prototype.concat = function() { - var components = [this], - totalLength = this.length; - - for (var i = 0; i < arguments.length; i++) { - var component = Array.isArray(component) ? arguments[i] : [component]; - - for (var j = 0; j < component.length; j++) { - var subcomponent = component[j]; - if (!(subcomponent instanceof ByteString) && !(subcomponent instanceof ByteArray)) - throw "Arguments to ByteArray.concat() must be ByteStrings, ByteArrays, or Arrays of those."; - - components.push(subcomponent); - totalLength += subcomponent.length; - } - } - - var result = new ByteArray(totalLength), - offset = 0; - - components.forEach(function(component) { - B_COPY(component._bytes, component._offset, result._byte, offset, component._length); - offset += component._length; - }); - - return result; -}; - -// pop() -> byte Number -ByteArray.prototype.pop = function() { - if (this._length === 0) - return undefined; - - this._length--; - - return B_GET(this._bytes, this._offset + this._length); -}; - -// push(...variadic Numbers...)-> count Number -ByteArray.prototype.push = function() { - throw "NYI"; -}; - -// extendRight(...variadic Numbers / Arrays / ByteArrays / ByteStrings ...) -ByteArray.prototype.extendRight = function() { - throw "NYI"; -}; - -// shift() -> byte Number -ByteArray.prototype.shift = function() { - if (this._length === 0) - return undefined; - - this._length--; - this._offset++; - - return B_GET(this._bytes, this._offset - 1); -}; - -// unshift(...variadic Numbers...) -> count Number -ByteArray.prototype.unshift = function() { - throw "NYI"; -}; - -// extendLeft(...variadic Numbers / Arrays / ByteArrays / ByteStrings ...) -ByteArray.prototype.extendLeft = function() { - throw "NYI"; -}; - -// reverse() in place reversal -ByteArray.prototype.reverse = function() { - // "limit" is halfway, rounded down. "top" is the last index. - var limit = Math.floor(this._length/2) + this._offset, - top = this._length - 1; - - // swap each pair of bytes, up to the halfway point - for (var i = this._offset; i < limit; i++) { - var tmp = B_GET(this._bytes, i); - B_SET(this._bytes, i, B_GET(this._bytes, top - i)); - B_SET(this._bytes, top - i, tmp); - } - - return this; -}; - -// slice() -ByteArray.prototype.slice = function() { - return new ByteArray(ByteString.prototype.apply.slice(this, arguments)); -}; - -var numericCompareFunction = function(o1, o2) { return o1 - o2; }; - -// sort([compareFunction]) -ByteArray.prototype.sort = function(compareFunction) { - // FIXME: inefficient? - - var array = this.toArray(); - - if (arguments.length) - array.sort(compareFunction); - else - array.sort(numericCompareFunction); - - for (var i = 0; i < array.length; i++) - this.set(i, array[i]); -}; - -// splice() -ByteArray.prototype.splice = function() { - throw "NYI"; -}; - -// indexOf() - implemented on Binary -// lastIndexOf() - implemented on Binary - -// split() Returns an array of ByteArrays instead of ByteStrings. -ByteArray.prototype.split = function() { - var components = ByteString.prototype.split.apply(this.toByteString(), arguments); - - // convert ByteStrings to ByteArrays - for (var i = 0; i < components.length; i++) { - // we know we can use these byte buffers directly since we copied them above - components[i] = new ByteArray(components[i]._bytes, components[i]._offset, components[i]._length); - } - - return components; -}; - -// filter(callback[, thisObject]) -ByteArray.prototype.filter = function(callback, thisObject) { - var result = new ByteArray(this.length); - for (var i = 0, length = this.length; i < length; i++) { - var value = this.get(i); - if (callback.apply(thisObject, [value, i, this])) - result.push(value); - } - return result; -}; - -// forEach(callback[, thisObject]); -ByteArray.prototype.forEach = function(callback) { - for (var i = 0, length = this.length; i < length; i++) - callback.apply(thisObject, [this.get(i), i, this]); -}; - -// every(callback[, thisObject]) -ByteArray.prototype.every = function(callback, thisObject) { - for (var i = 0, length = this.length; i < length; i++) - if (!callback.apply(thisObject, [this.get(i), i, this])) - return false; - return true; -}; - -// some(callback[, thisObject]) -ByteArray.prototype.some = function(callback, thisObject) { - for (var i = 0, length = this.length; i < length; i++) - if (callback.apply(thisObject, [this.get(i), i, this])) - return true; - return false; -}; - -// map(callback[, thisObject]); -ByteArray.prototype.map = function(callback, thisObject) { - var result = new ByteArray(this.length); - for (var i = 0, length = this.length; i < length; i++) - result.set(i, callback.apply(thisObject, [this.get(i), i, this])); - return result; -}; - -// reduce(callback[, initialValue]) -ByteArray.prototype.reduce = function(callback, initialValue) { - var value = initialValue; - for (var i = 0, length = this.length; i < length; i++) - value = callback(value, this.get(i), i, this); - return value; -}; - -// reduceRight(callback[, initialValue]) -ByteArray.prototype.reduceRight = function(callback, initialValue) { - var value = initialValue; - for (var i = this.length-1; i > 0; i--) - value = callback(value, this.get(i), i, this); - return value; -}; - -// displace(begin, end, values/ByteStrings/ByteArrays/Arrays...) -> length -// begin/end are specified like for slice. Can be used like splice but does not return the removed elements. -ByteArray.prototype.displace = function(begin, end) { - throw "NYI"; -}; - -// toSource() returns a string like "ByteArray([])" for a null byte-array. -ByteArray.prototype.toSource = function() { - return "ByteArray(["+this.toArray().join(",")+"])"; -}; - -/* BinaryIO */ - -exports.BinaryIO = function(binary) { - if (!binary) - throw "NYI"; - - var stream = new (require("io").IO)(new java.io.ByteArrayInputStream(binary._bytes, binary._offset, binary._length), null); - stream.length = binary.length; - return stream; -}; - |