init

jdenticon-js/build/gulp/ast-transform-stream.js

@@ -0,0 +1,34 @@
+const { Transform } = require("stream");
+const { parse } = require("acorn");
+const { Replacement } = require("./replacement");
+
+function astTransformStream(transformer) {
+    return new Transform({
+        objectMode: true,
+
+        transform(inputFile, _, fileDone) {
+            const input = inputFile.contents.toString();
+            
+            const comments = [];
+            const ast = parse(input, {
+                ecmaVersion: 10,
+                sourceType: "module",
+                onComment: comments,
+            });
+
+            const replacement = new Replacement();
+            transformer(replacement, ast, comments, input);
+            const output = replacement.replace(input, inputFile.sourceMap);
+            
+            inputFile.contents = Buffer.from(output.output);
+
+            if (inputFile.sourceMap) {
+                inputFile.sourceMap = output.sourceMap;
+            }
+
+            fileDone(null, inputFile);
+        }
+    });
+}
+
+module.exports = transformer => () => astTransformStream(transformer);

jdenticon-js/build/gulp/pre-minify.js

@@ -0,0 +1,186 @@
+const { Node } = require("acorn");
+const astTransformStream = require("./ast-transform-stream");
+const DOMPROPS = require("./domprops");
+const RESERVED_NAMES = require("./reserved-keywords");
+
+const CHARACTERS = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_";
+
+function visit(node, visitor) {
+    if (node instanceof Node) {
+        visitor(node);
+    }
+
+    for (const key in node) {
+        const value = node[key];
+        if (Array.isArray(value)) {
+            value.forEach(subNode => visit(subNode, visitor));
+        } else if (value instanceof Node) {
+            visit(value, visitor);
+        }
+    }
+}
+
+function generateIdentifier(seed) {
+    let identifier = "";
+
+    seed = Math.abs(Math.floor(seed));
+
+    do {
+        const mod = seed % CHARACTERS.length;
+        identifier += CHARACTERS[mod];
+        seed = (seed / CHARACTERS.length) | 0;
+    } while (seed);
+
+    return identifier;
+}
+
+function mangleProps(input, ast, replacement) {
+    const identifierNodes = [];
+    const longToShortName = new Map();
+
+    // Find identifiers
+    visit(ast, node => {
+        let identifier;
+
+        if (node.type === "MemberExpression" && !node.computed) {
+            // Matches x.y
+            // Not x["y"] (computed: true)
+            identifier = node.property;
+        } else if (node.type === "MethodDefinition") {
+            // Matches x() { }
+            identifier = node.key;
+        } else if (node.type === "Property") {
+            // Matches { x: y }
+            // Not { "x": y }
+            identifier = node.key;
+        }
+
+        if (identifier && identifier.type === "Identifier") {
+            identifierNodes.push(identifier);
+        }
+    });
+    
+    // Collect usage statistics per name
+    const usageMap = new Map();
+    identifierNodes.forEach(node => {
+        if (node.name && !RESERVED_NAMES.has(node.name) && !DOMPROPS.has(node.name)) {
+            usageMap.set(node.name, (usageMap.get(node.name) || 0) + 1);
+        }
+    });
+    
+    // Sort by usage in descending order
+    const usageStats = Array.from(usageMap).sort((a, b) => b[1] - a[1]);
+
+    // Allocate identifiers in order of usage statistics to ensure
+    // frequently used symbols get as short identifiers as possible.
+    let runningCounter = 0;
+    usageStats.forEach(identifier => {
+        const longName = identifier[0];
+        
+        if (!longToShortName.has(longName)) {
+            let shortName;
+
+            do {
+                shortName = generateIdentifier(runningCounter++);
+            } while (RESERVED_NAMES.has(shortName) || DOMPROPS.has(shortName));
+
+            longToShortName.set(longName, shortName);
+        }
+    });
+
+    // Populate replacements
+    identifierNodes.forEach(node => {
+        const minifiedName = longToShortName.get(node.name);
+        if (minifiedName) {
+            replacement.addRange({
+                start: node.start,
+                end: node.end,
+                replacement: minifiedName + "/*" + node.name + "*/",
+                name: node.name,
+            });
+        }
+    });
+
+    return replacement;
+}
+
+function simplifyES5Class(input, ast, replacement) {
+    const prototypeMemberExpressions = [];
+    const duplicateNamedFunctions = [];
+
+    visit(ast, node => {
+        if (node.type === "MemberExpression" &&
+            !node.computed &&
+            node.object.type === "Identifier" &&
+            node.property.type === "Identifier" &&
+            node.property.name === "prototype"
+        ) {
+            // Matches: xxx.prototype
+            prototypeMemberExpressions.push(node);
+            
+        } else if (
+            node.type === "VariableDeclaration" &&
+            node.declarations.length === 1 &&
+            node.declarations[0].init &&
+            node.declarations[0].init.type === "FunctionExpression" &&
+            node.declarations[0].init.id &&
+            node.declarations[0].init.id.name === node.declarations[0].id.name
+            ) {
+            // Matches: var xxx = function xxx ();
+            duplicateNamedFunctions.push(node);
+        }
+    });
+
+    duplicateNamedFunctions.forEach(duplicateNamedFunction => {
+        const functionName = duplicateNamedFunction.declarations[0].init.id.name;
+
+        // Remove: var xxx =
+        replacement.addRange({
+            start: duplicateNamedFunction.start,
+            end: duplicateNamedFunction.declarations[0].init.start,
+            replacement: "",
+        });
+
+        // Remove trailing semicolons
+        let semicolons = 0;
+        while (input[duplicateNamedFunction.end - semicolons - 1] === ";") semicolons++;
+        
+        // Find prototype references
+        const refs = prototypeMemberExpressions.filter(node => node.object.name === functionName);
+        if (refs.length > 1) {
+
+            // Insert: var xx__prototype = xxx.prototype;
+            replacement.addRange({
+                start: duplicateNamedFunction.end - semicolons,
+                end: duplicateNamedFunction.end,
+                replacement: `\r\nvar ${functionName}__prototype = ${functionName}.prototype;`,
+            });
+
+            // Replace references
+            refs.forEach(ref => {
+                replacement.addRange({
+                    start: ref.start,
+                    end: ref.end,
+                    replacement: `${functionName}__prototype`,
+                });
+            });
+        } else if (semicolons) {
+            replacement.addRange({
+                start: duplicateNamedFunction.end - semicolons,
+                end: duplicateNamedFunction.end,
+                replacement: "",
+            });
+        }
+    });
+}
+
+function browserConstants(input, ast, replacement) {
+    replacement.addText("Node.ELEMENT_NODE", "1");
+}
+
+const MINIFIERS = [simplifyES5Class, mangleProps, browserConstants];
+
+module.exports = astTransformStream(function (replacement, ast, comments, input) {
+    MINIFIERS.forEach(minifier => minifier(input, ast, replacement));
+});
+

jdenticon-js/build/gulp/remove-jsdoc-imports.js

@@ -0,0 +1,52 @@
+const astTransformStream = require("./ast-transform-stream");
+
+function removeJSDocImports(comments, replacement) {
+    const REGEX = /[ \t]*\*[ \t]*@typedef\s+\{import.+\r?\n?|import\(.*?\)\.([a-zA-Z_]+)/g;
+    const JSDOC_COMMENT_OFFSET = 2;
+
+    comments.forEach(comment => {
+        if (comment.type === "Block" && comment.value[0] === "*") {
+            // JSDoc comment
+            const resultingComment = comment.value.replace(REGEX, (match, importName, matchIndex) => {
+                matchIndex += comment.start + JSDOC_COMMENT_OFFSET;
+
+                if (importName) {
+                    // { import().xxx }
+                    replacement.addRange({
+                        start: matchIndex,
+                        end: matchIndex + match.length,
+                        replacement: importName,
+                    });
+
+                    return importName;
+                    
+                } else {
+                    // @typedef
+                    replacement.addRange({
+                        start: matchIndex,
+                        end: matchIndex + match.length,
+                        replacement: "",
+                    });
+
+                    return "";
+                }
+            });
+
+            if (!/[^\s\*]/.test(resultingComment)) {
+                // Empty comment left
+                replacement.addRange({
+                    start: comment.start,
+                    end: comment.end,
+                    replacement: "",
+                });
+            }
+        }
+    });
+}
+
+module.exports = astTransformStream(function (replacement, ast, comments, input) {
+    removeJSDocImports(comments, replacement);
+});
+
+
+

jdenticon-js/build/gulp/remove-mapped-source.js

@@ -0,0 +1,54 @@
+const { Transform } = require("stream");
+const { SourceMapConsumer, SourceMapGenerator } = require("source-map");
+
+function removeMappedSourceStream(...sourceNames) {
+    const sourceNamesToRemove = new Set(sourceNames);
+
+    return new Transform({
+        objectMode: true,
+        
+        transform(inputFile, _, fileDone) {
+            if (inputFile.sourceMap) {
+                let consumer = inputFile.sourceMap;
+                if (!(consumer instanceof SourceMapConsumer)) {
+                    consumer = new SourceMapConsumer(consumer);
+                }
+
+                const generator = new SourceMapGenerator({
+                    file: consumer.file,
+                    sourceRoot: consumer.sourceRoot,
+                });
+
+                consumer.sources.forEach(sourceFile => {
+                    const content = consumer.sourceContentFor(sourceFile);
+                    if (content != null && !sourceNamesToRemove.has(sourceFile)) {
+                        generator.setSourceContent(sourceFile, content);
+                    }
+                });
+
+                consumer.eachMapping(mapping => {
+                    if (!sourceNamesToRemove.has(mapping.source)) {
+                        generator.addMapping({
+                            original: {
+                                line: mapping.originalLine,
+                                column: mapping.originalColumn,
+                            },
+                            generated: {
+                                line: mapping.generatedLine,
+                                column: mapping.generatedColumn,
+                            },
+                            source: mapping.source,
+                            name: mapping.name,
+                        });
+                    }
+                });
+
+                inputFile.sourceMap = generator.toJSON();
+            }
+
+            fileDone(null, inputFile);
+        }
+    });
+}
+
+module.exports = removeMappedSourceStream;

jdenticon-js/build/gulp/replacement.js

@@ -0,0 +1,672 @@
+/**
+ * Jdenticon
+ * https://github.com/dmester/jdenticon
+ * Copyright © Daniel Mester Pirttijärvi
+ */
+
+const { Transform } = require("stream");
+const { SourceMapConsumer, SourceMapGenerator } = require("source-map");
+
+/**
+ * Finds substrings and replaces them with other strings, keeping any input source map up-to-date.
+ * 
+ * @example
+ * const replacement = new Replacement([
+ *    ["find this", "replace with this"],
+ *    [/find this/gi, "replace with this"]
+ * ]);
+ * replacement.replace(input, inputSourceMap);
+ * 
+ * @example
+ * const replacement = new Replacement("find this", "replace with this");
+ * replacement.replace(input, inputSourceMap);
+ */
+class Replacement {
+    constructor(...definition) {
+        /**
+         * @type {function(Array<OverwriteRange>, string): void}
+         */
+        this._matchers = [];
+
+        /**
+         * @type {Array<OverwriteRange>}
+         */
+        this._ranges = [];
+
+        this.add(definition);
+    }
+
+    /**
+     * @param {string} input 
+     * @returns {Array<OverwriteRange>}
+     */
+    matchAll(input) {
+        const ranges = [...this._ranges];
+        this._matchers.forEach(matcher => matcher(ranges, input));
+
+        let lastReplacement;
+        
+        return ranges
+            .sort((a, b) => a.start - b.start)
+            .filter(replacement => {
+                if (!lastReplacement || lastReplacement.end <= replacement.start) {
+                    lastReplacement = replacement;
+                    return true;
+                }
+            });
+    }
+
+    /**
+     * @param {string} input 
+     * @param {SourceMap=} inputSourceMap 
+     * @returns {{ output: string, sourceMap: SourceMap }}
+     */
+    replace(input, inputSourceMap) {
+        const ranges = this.matchAll(input);
+        const offset = new Offset();
+        const reader = new InputReader(input);
+        const sourceMap = new SourceMapSpooler(inputSourceMap);
+        const output = [];
+    
+        if (sourceMap.isEmpty()) {
+            sourceMap.initEmpty(reader.lines);
+        }
+        
+        ranges.forEach((range, rangeIndex) => {
+            output.push(reader.readTo(range.start));
+            output.push(range.replacement);
+
+            const inputStart = reader.pos;
+            
+            const replacedText = reader.readTo(range.end);
+            if (replacedText === range.replacement) {
+                return; // Nothing to do
+            }
+
+            const inputEnd = reader.pos;
+            
+            const replacementLines = range.replacement.split(/\n/g);
+            const lineDifference = replacementLines.length + inputStart.line - inputEnd.line - 1;
+    
+            const outputStart = {
+                line: inputStart.line + offset.lineOffset,
+                column: inputStart.column + offset.getColumnOffset(inputStart.line)
+            };
+            const outputEnd = {
+                line: inputEnd.line + offset.lineOffset + lineDifference,
+                column: replacementLines.length > 1 ? 
+                    replacementLines[replacementLines.length - 1].length :
+                    inputStart.column + offset.getColumnOffset(inputStart.line) +
+                    range.replacement.length
+            }
+
+            sourceMap.spoolTo(inputStart.line, inputStart.column, offset);
+            
+            offset.lineOffset += lineDifference;
+            offset.setColumnOffset(inputEnd.line, outputEnd.column - inputEnd.column);
+    
+            if (range.name || replacementLines.length === 1 && range.replacement) {
+                const mappingBeforeStart = sourceMap.lastMapping();
+                const mappingAfterStart = sourceMap.nextMapping();
+
+                if (mappingAfterStart &&
+                    mappingAfterStart.generatedLine === inputStart.line &&
+                    mappingAfterStart.generatedColumn === inputStart.column
+                ) {
+                    sourceMap.addMapping({
+                        original: {
+                            line: mappingAfterStart.originalLine,
+                            column: mappingAfterStart.originalColumn,
+                        },
+                        generated: {
+                            line: outputStart.line,
+                            column: outputStart.column
+                        },
+                        source: mappingAfterStart.source,
+                        name: range.name,
+                    });
+
+                } else if (mappingBeforeStart && mappingBeforeStart.generatedLine === inputStart.line) {
+                    sourceMap.addMapping({
+                        original: {
+                            line: mappingBeforeStart.originalLine + inputStart.line - mappingBeforeStart.generatedLine,
+                            column: mappingBeforeStart.originalColumn + inputStart.column - mappingBeforeStart.generatedColumn,
+                        },
+                        generated: {
+                            line: outputStart.line,
+                            column: outputStart.column
+                        },
+                        source: mappingBeforeStart.source,
+                        name: range.name,
+                    });
+                }
+    
+            } else if (range.replacement) {
+                // Map longer replacements to a virtual file defined in the source map
+                const generatedSourceName = sourceMap.addSourceContent(replacedText, range.replacement);
+                
+                for (var i = 0; i < replacementLines.length; i++) {
+                    // Don't map empty lines
+                    if (replacementLines[i]) {
+                        sourceMap.addMapping({
+                            original: {
+                                line: i + 1,
+                                column: 0,
+                            },
+                            generated: {
+                                line: outputStart.line + i,
+                                column: i ? 0 : outputStart.column,
+                            },
+                            source: generatedSourceName,
+                        });
+                    }
+                }
+            }
+
+            sourceMap.skipTo(inputEnd.line, inputEnd.column, offset);
+    
+            // Add a source map node directly after the replacement to terminate the replacement
+            const mappingAfterEnd = sourceMap.nextMapping();
+            const mappingBeforeEnd = sourceMap.lastMapping();
+    
+            if (mappingAfterEnd &&
+                mappingAfterEnd.generatedLine === inputEnd.line &&
+                mappingAfterEnd.generatedColumn === inputEnd.column
+            ) {
+                // No extra source map node needed when the replacement is directly followed by another node
+    
+            } else if (rangeIndex + 1 < ranges.length && range.end === ranges[rangeIndex + 1].start) {
+                // The next replacement range is adjacent to this one
+
+            } else if (reader.endOfLine()) {
+                // End of line, no point in adding a following node
+
+            } else if (!mappingBeforeEnd || mappingBeforeEnd.generatedLine !== inputEnd.line) {
+                // No applicable preceding node found
+
+            } else {
+                sourceMap.addMapping({
+                    original: {
+                        line: mappingBeforeEnd.originalLine + inputEnd.line - mappingBeforeEnd.generatedLine,
+                        column: mappingBeforeEnd.originalColumn + inputEnd.column - mappingBeforeEnd.generatedColumn,
+                    },
+                    generated: {
+                        line: outputEnd.line,
+                        column: outputEnd.column
+                    },
+                    source: mappingBeforeEnd.source,
+                });
+            }
+    
+        });
+    
+        // Flush remaining input to output and source map
+        output.push(reader.readToEnd());
+        sourceMap.spoolToEnd(offset);
+    
+        return {
+            output: output.join(""),
+            sourceMap: sourceMap.toJSON(),
+        };
+    }
+
+    add(value) {
+        const target = this;
+    
+        function addRecursive(innerValue) {
+            if (innerValue != null) {
+                if (Array.isArray(innerValue)) {
+                    const needle = innerValue[0];
+
+                    if (typeof needle === "string") {
+                        target.addText(...innerValue);
+                    } else if (needle instanceof RegExp) {
+                        target.addRegExp(...innerValue);
+                    } else {
+                        innerValue.forEach(addRecursive);
+                    }
+        
+                } else if (innerValue instanceof Replacement) {
+                    target._matchers.push(innerValue._matchers);
+                    target._ranges.push(innerValue._ranges);
+                
+                } else if (typeof innerValue === "object") {
+                    target.addRange(innerValue);
+                
+                } else {
+                    throw new Error("Unknown replacement argument specified.");
+                }
+            }
+        }
+
+        addRecursive(value);
+    }
+
+    /**
+     * @param {RegExp} re 
+     * @param {string|function(string, ...):string} replacement 
+     * @param {{ name: string }=} rangeOpts 
+     */
+    addRegExp(re, replacement, rangeOpts) {
+        const replacementFactory = this._createReplacementFactory(replacement);
+
+        this._matchers.push((ranges, input) => {
+            const isGlobalRegExp = /g/.test(re.flags);
+    
+            let match;
+            let isFirstIteration = true;
+
+            while ((isFirstIteration || isGlobalRegExp) && (match = re.exec(input))) {
+                ranges.push(new OverwriteRange({
+                    ...rangeOpts,
+                    start: match.index,
+                    end: match.index + match[0].length,
+                    replacement: replacementFactory(match, match.index, input),
+                }));
+                isFirstIteration = false;
+            }
+        });
+    }
+
+    /**
+     * @param {string} needle
+     * @param {string|function(string, ...):string} replacement 
+     * @param {{ name: string }=} rangeOpts 
+     */
+    addText(needle, replacement, rangeOpts) {
+        const replacementFactory = this._createReplacementFactory(replacement);
+
+        this._matchers.push((ranges, input) => {
+            let index = -needle.length;
+                    
+            while ((index = input.indexOf(needle, index + needle.length)) >= 0) {
+                ranges.push(new OverwriteRange({
+                    ...rangeOpts,
+                    start: index,
+                    end: index + needle.length,
+                    replacement: replacementFactory([needle], index, input),
+                }));
+            }
+        });
+    }
+
+    /**
+     * @param {OverwriteRange} range 
+     */
+    addRange(range) {
+        this._ranges.push(new OverwriteRange(range));
+    }
+
+    /**
+     * @param {string|function(string, ...):string} replacement 
+     * @returns {function(Array<string>, number, string):string}
+     */
+    _createReplacementFactory(replacement) {
+        if (typeof replacement === "function") {
+            return (match, index, input) => replacement(...match, index, input);
+        }
+
+        if (replacement == null) {
+            return () => "";
+        }
+
+        replacement = replacement.toString();
+
+        if (replacement.indexOf("$") < 0) {
+            return () => replacement;
+        }
+
+        return (match, index, input) =>
+            replacement.replace(/\$(\d+|[$&`'])/g, matchedPattern => {
+                if (matchedPattern === "$$") {
+                    return "$";
+                }
+                if (matchedPattern === "$&") {
+                    return match[0];
+                }
+                if (matchedPattern === "$`") {
+                    return input.substring(0, index);
+                }
+                if (matchedPattern === "$'") {
+                    return input.substring(index + match[0].length);
+                }
+
+                const matchArrayIndex = Number(matchedPattern.substring(1));
+                return match[matchArrayIndex];
+            });
+    }
+}
+
+class InputReader {
+    /**
+     * @param {string} input 
+     */
+    constructor (input) {
+        // Find index of all line breaks
+        const lineBreakIndexes = [];
+        let index = -1;
+        while ((index = input.indexOf("\n", index + 1)) >= 0) {
+            lineBreakIndexes.push(index);
+        }
+
+        this._input = input;
+        
+        this._inputCursorExclusive = 0;
+        this._output = [];
+        this._lineBreakIndexes = lineBreakIndexes;
+
+        /**
+         * Number of lines in the input file.
+         * @type {number}
+         */
+        this.lines = this._lineBreakIndexes.length + 1;
+
+        /**
+         * Position of the input cursor. Line number is one-based and column number is zero-based.
+         * @type {{ line: number, column: number }}
+         */
+        this.pos = { line: 1, column: 0 };
+    }
+
+    readTo(exclusiveIndex) {
+        let result = "";
+
+        if (this._inputCursorExclusive < exclusiveIndex) {
+            result = this._input.substring(this._inputCursorExclusive, exclusiveIndex);
+            this._inputCursorExclusive = exclusiveIndex;
+            this._updatePos();
+        }
+
+        return result;
+    }
+
+    readToEnd() {
+        return this.readTo(this._input.length);
+    }
+    
+    endOfLine() {
+        const nextChar = this._input[this._inputCursorExclusive];
+        return !nextChar || nextChar === "\r" || nextChar === "\n";
+    }
+
+    _updatePos() {
+        let line = this.pos.line;
+        while (
+            line - 1 < this._lineBreakIndexes.length &&
+            this._lineBreakIndexes[line - 1] < this._inputCursorExclusive
+        ) {
+            line++;
+        }
+
+        const lineStartIndex = this._lineBreakIndexes[line - 2];
+        const column = this._inputCursorExclusive - (lineStartIndex || -1) - 1;
+        this.pos = { line, column };
+    }
+}
+
+class SourceMapSpooler {
+    /**
+     * @param {SourceMap=} inputSourceMap
+     */
+    constructor(inputSourceMap) {
+        let generator;
+        let file;
+        let sources;
+        let mappings = [];
+
+        if (inputSourceMap) {
+            if (!(inputSourceMap instanceof SourceMapConsumer)) {
+                inputSourceMap = new SourceMapConsumer(inputSourceMap);
+            }
+    
+            generator = new SourceMapGenerator({
+                file: inputSourceMap.file,
+                sourceRoot: inputSourceMap.sourceRoot,
+            });
+    
+            inputSourceMap.sources.forEach(function(sourceFile) {
+                const content = inputSourceMap.sourceContentFor(sourceFile);
+                if (content != null) {
+                    generator.setSourceContent(sourceFile, content);
+                }
+            });
+    
+            inputSourceMap.eachMapping(mapping => {
+                mappings.push(mapping);
+            });
+    
+            mappings.sort((a, b) => a.generatedLine == b.generatedLine
+                ? a.generatedColumn - b.generatedColumn : a.generatedLine - b.generatedLine);
+
+            file = inputSourceMap.file;
+            sources = inputSourceMap.sources;
+            
+        } else {
+            generator = new SourceMapGenerator();
+            file = "input";
+            sources = [];
+        }
+
+        this._generator = generator;
+        this._sources = new Set(sources);
+        this._file = file;
+        
+        this._mappingsCursor = 0;
+        this._mappings = mappings;
+
+        this._contents = new Map();
+    }
+
+    lastMapping() {
+        return this._mappings[this._mappingsCursor - 1];
+    }
+
+    nextMapping() {
+        return this._mappings[this._mappingsCursor];
+    }
+
+    addMapping(mapping) {
+        this._generator.addMapping(mapping);
+    }
+
+    isEmpty() {
+        return this._mappings.length === 0;
+    }
+
+    initEmpty(lines) {
+        this._mappings = [];
+
+        for (var i = 0; i < lines; i++) {
+            this._mappings.push({
+                originalLine: i + 1,
+                originalColumn: 0,
+                generatedLine: i + 1,
+                generatedColumn: 0,
+                source: this._file
+            });
+        }
+    }
+
+    addSourceContent(replacedText, content) {
+        let sourceName = this._contents.get(content);
+
+        if (!sourceName) {
+            const PREFIX = "replacement/";
+            
+            let sourceNameWithoutNumber = PREFIX;
+            sourceName = sourceNameWithoutNumber + "1";
+
+            if (replacedText.length > 0 && replacedText.length < 25) {
+                replacedText = replacedText
+                    .replace(/^[^0-9a-z-_]+|[^0-9a-z-_]+$/ig, "")
+                    .replace(/\s+/g, "-")
+                    .replace(/[^0-9a-z-_]/ig, "");
+                    
+                if (replacedText) {
+                    sourceNameWithoutNumber = PREFIX + replacedText + "-";
+                    sourceName = PREFIX + replacedText;
+                }
+            }
+            
+            let counter = 2;
+            while (this._sources.has(sourceName)) {
+                sourceName = sourceNameWithoutNumber + counter++;
+            }
+            
+            this._sources.add(sourceName);
+            this._contents.set(content, sourceName);
+            this._generator.setSourceContent(sourceName, content);
+        }
+
+        return sourceName;
+    }
+
+    /**
+     * Copies source map info from input to output up to but not including the specified position.
+     * @param {number} line 
+     * @param {number} column 
+     * @param {Offset} offset 
+     */
+    spoolTo(line, column, offset) {
+        this._consume(line, column, offset, true);
+    }
+
+    /**
+     * Copies remaining source map info from input to output.
+     * @param {number} line 
+     * @param {number} column 
+     * @param {Offset} offset 
+     */
+    spoolToEnd(offset) {
+        this._consume(null, null, offset, true);
+    }
+
+    /**
+     * Discards source map info from input up to but not including the specified position.
+     * @param {number} line 
+     * @param {number} column 
+     * @param {Offset} offset 
+     */
+    skipTo(line, column, offset) {
+        this._consume(line, column, offset, false);
+    }
+
+    toJSON() {
+        return this._generator.toJSON();
+    }
+    
+    _consume(line, column, offset, keep) {
+        let mapping;
+
+        while (
+            (mapping = this._mappings[this._mappingsCursor]) &&
+            (
+                line == null ||
+                mapping.generatedLine < line ||
+                mapping.generatedLine == line && mapping.generatedColumn < column
+            )
+        ) {
+            if (keep) {
+                this._generator.addMapping({
+                    original: {
+                        line: mapping.originalLine,
+                        column: mapping.originalColumn,
+                    },
+                    generated: {
+                        line: mapping.generatedLine + offset.lineOffset,
+                        column: mapping.generatedColumn + offset.getColumnOffset(mapping.generatedLine),
+                    },
+                    source: mapping.source,
+                    name: mapping.name,
+                });
+            }
+
+            this._mappingsCursor++;
+        }
+    }
+
+}
+
+class Offset {
+    constructor() {
+        this.lineOffset = 0;
+        this._columnOffset = 0;
+        this._columnOffsetForLine = 0;
+    }
+
+    setColumnOffset(lineNumber, columnOffset) {
+        this._columnOffsetForLine = lineNumber;
+        this._columnOffset = columnOffset;
+    }
+
+    getColumnOffset(lineNumber) {
+        return this._columnOffsetForLine === lineNumber ?
+            this._columnOffset : 0;
+    }
+}
+
+class OverwriteRange {
+    constructor(options) {
+        if (!isFinite(options.start)) {
+            throw new Error("A replacement start index is required.");
+        }
+        if (!isFinite(options.end)) {
+            throw new Error("A replacement end index is required.");
+        }
+        if (options.end < options.start) {
+            throw new Error("Replacement end index cannot precede its start index.");
+        }
+
+        /**
+         * Inclusive start index.
+         * @type {number}
+         */
+        this.start = options.start;
+
+        /**
+         * Exclusive start index.
+         * @type {number}
+         */
+        this.end = options.end;
+
+        /**
+         * The replacement interval will be replaced with this string.
+         * @type string
+         */
+        this.replacement = "" + options.replacement;
+
+        /**
+         * Optional name that will be mapped in the source map.
+         * @type string
+         */
+        this.name = options.name;
+    }
+}
+
+function gulp(replacements) {
+    if (typeof replacements === "string" || replacements instanceof RegExp) {
+        replacements = Array.from(arguments);
+    }
+
+    const replacer = new Replacement(replacements);
+
+    return new Transform({
+        objectMode: true,
+
+        transform(inputFile, _, fileDone) {
+            const input = inputFile.contents.toString();
+
+            const output = replacer.replace(input, inputFile.sourceMap);
+            
+            inputFile.contents = Buffer.from(output.output);
+
+            if (inputFile.sourceMap) {
+                inputFile.sourceMap = output.sourceMap;
+            }
+
+            fileDone(null, inputFile);
+        }
+    });
+}
+
+module.exports = { Replacement, gulp };

jdenticon-js/build/gulp/reserved-keywords.js

@@ -0,0 +1,70 @@
+module.exports = new Set([
+    "async",
+    "break",
+    "case",
+    "catch",
+    "class",
+    "const",
+    "continue",
+    "debugger",
+    "default",
+    "delete",
+    "do",
+    "else",
+    "export",
+    "extends",
+    "finally",
+    "for",
+    "function",
+    "if",
+    "import",
+    "in",
+    "of",
+    "instanceof",
+    "new",
+    "return",
+    "super",
+    "switch",
+    "this",
+    "throw",
+    "try",
+    "typeof",
+    "var",
+    "void",
+    "while",
+    "with",
+    "yield",
+    "enum",
+    "implements",
+    "interface",
+    "let",
+    "package",
+    "private",
+    "protected",
+    "public",
+    "static",
+    "await",
+    "abstract",
+    "boolean",
+    "byte",
+    "char",
+    "double",
+    "final",
+    "float",
+    "goto",
+    "int",
+    "long",
+    "native",
+    "short",
+    "synchronized",
+    "throws",
+    "transient",
+    "volatile",
+    "arguments",
+    "get",
+    "set",
+    "null",
+    "undefined",
+    "exports",
+    "module",
+]);

jdenticon-js/build/gulp/rollup.js

@@ -0,0 +1,56 @@
+/**
+ * Jdenticon
+ * https://github.com/dmester/jdenticon
+ * Copyright © Daniel Mester Pirttijärvi
+ */
+
+const { rollup } = require("rollup");
+const Vinyl = require("vinyl");
+const applySourceMap = require("vinyl-sourcemaps-apply");
+const { Transform } = require("stream");
+
+function rollupStream(options) {
+    return new Transform({
+        objectMode: true,
+
+        transform(inputFile, _, fileDone) {
+            const inputOptions = {
+                onwarn: warn => console.warn(warn.toString()),
+                ...options,
+                input: inputFile.path,
+            };
+            delete inputOptions.output;
+
+            rollup(inputOptions).then(bundle => {
+                return bundle.generate({
+                    ...options.output,
+                    sourcemap: !!inputFile.sourceMap
+                });
+
+            }).then(outputs => {
+
+                for (const output of outputs.output) {
+                    if (output.type === "chunk") {
+                        const outputFile = new Vinyl({
+                            cwd: inputFile.cwd,
+                            base: inputFile.base,
+                            path: inputFile.path,
+                            contents: Buffer.from(output.code),
+                        });
+
+                        if (inputFile.sourceMap) {
+                            applySourceMap(outputFile, output.map);
+                        }
+
+                        this.push(outputFile);
+                    }
+                }
+
+                fileDone();
+                
+            }, err => fileDone(err));
+        }
+    });
+}
+
+module.exports = rollupStream;

jdenticon-js/build/gulp/wrap-template.js

@@ -0,0 +1,26 @@
+const fs = require("fs");
+const replace = require("./replacement").gulp;
+
+function wrapTemplate(templatePath, variables) {
+    let template = fs.readFileSync(templatePath).toString();
+
+    if (variables) {
+        variables.forEach(variable => {
+            template = template.replace(variable[0], variable[1]);
+        });
+    }
+
+    template = template.split(/\/\*content\*\//);
+
+    const replacements = [];
+    if (template[0]) {
+        replacements.push([/^/, template[0]]);
+    }
+    if (template[1]) {
+        replacements.push([/$/, template[1]]);
+    }
+
+    return replace(replacements);
+}
+
+module.exports = wrapTemplate;

jdenticon-js/build/jdenticon.nuspec

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<package xmlns="http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd">
+    <metadata>
+        <id>Jdenticon</id>
+        <version>#version#</version>
+        <title>Jdenticon JS</title>
+        <authors>Daniel Mester Pirttijärvi</authors>
+        <license type="expression">MIT</license>
+        <projectUrl>http://jdenticon.com/</projectUrl>
+        <iconUrl>http://jdenticon.com/hosted/nuget-logo-js.png</iconUrl>
+        <requireLicenseAcceptance>false</requireLicenseAcceptance>
+        <description>JavaScript library generating identicons using SVG graphics or HTML5 canvas.
+
+If you intend to generate icons server-side, consider using any of the .NET packages instead:
+* Jdenticon-net
+* Jdenticon.AspNetCore 
+* Jdenticon.AspNet.Mvc
+* Jdenticon.AspNet.WebApi 
+* Jdenticon.AspNet.WebForms</description>
+        <tags>JavaScript identicon avatar library</tags>
+    </metadata>
+    <files>
+        <file src="obj\output\jdenticon-#version#.min.js" target="Content\Scripts\jdenticon-#version#.min.js" />
+        <file src="obj\output\jdenticon-#version#.js" target="Content\Scripts\jdenticon-#version#.js" />
+        <file src="obj\output\readme.txt" target="Content\Scripts\jdenticon.readme.txt" />
+    </files>
+</package>

jdenticon-js/build/nuget/license.txt

@@ -0,0 +1,70 @@
+Apache License 2.0 (Apache)
+Apache License
+Version 2.0, January 2004
+http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+"License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document.
+
+"Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License.
+
+"Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity.
+
+"You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License.
+
+"Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files.
+
+"Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types.
+
+"Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below).
+
+"Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof.
+
+"Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution."
+
+"Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work.
+
+2. Grant of Copyright License.
+
+Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form.
+
+3. Grant of Patent License.
+
+Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed.
+
+4. Redistribution.
+
+You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions:
+
+1. You must give any other recipients of the Work or Derivative Works a copy of this License; and
+
+2. You must cause any modified files to carry prominent notices stating that You changed the files; and
+
+3. You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and
+
+4. If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License.
+
+You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License.
+
+5. Submission of Contributions.
+
+Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions.
+
+6. Trademarks.
+
+This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty.
+
+Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License.
+
+8. Limitation of Liability.
+
+In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability.
+
+While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability.

jdenticon-js/build/template-min.js

@@ -0,0 +1,2 @@
+// Jdenticon #version# | jdenticon.com | MIT licensed | (c) 2014-#year# Daniel Mester Pirttijärvi
+/*content*/

jdenticon-js/build/template-module.js

@@ -0,0 +1,10 @@
+/**
+ * Jdenticon #version#
+ * http://jdenticon.com
+ *
+ * Built: #date#
+ * 
+ * #license#
+ */
+
+/*content*/

jdenticon-js/build/template-umd.js

@@ -0,0 +1,27 @@
+/**
+ * Jdenticon #version#
+ * http://jdenticon.com
+ *  
+ * Built: #date#
+ *
+ * #license#
+ */
+
+(function (umdGlobal, factory) {
+    var jdenticon = factory(umdGlobal);
+
+    // Node.js
+    if (typeof module !== "undefined" && "exports" in module) {
+        module["exports"] = jdenticon;
+    }
+    // RequireJS
+    else if (typeof define === "function" && define["amd"]) {
+        define([], function () { return jdenticon; });
+    }
+    // No module loader
+    else {
+        umdGlobal["jdenticon"] = jdenticon;
+    }
+})(typeof self !== "undefined" ? self : this, function (umdGlobal) {
+/*content*/
+});