Now Particularly Misnamed

    esmangle

    1.0.1 • Public • Published

    esmangle NPM version Build Status Dependency Status

    esmangle (esmangle) is mangler / minifier for Parser API AST.

    Install

    esmangle can be used in a web browser: Download

    <script src="esmangle.js"></script>
    

    Node.js application via the package manager:

    npm install esmangle
    

    If you would like to use latest esmangle in a browser, you can build build/esmangle.min.js:

    npm run-script build
    

    Usage

    A simple example: the program

    var ast = esprima.parse(code);
    var result = esmangle.mangle(ast);  // gets mangled AST
    console.log(escodegen.generate(result));  // dump AST
    

    Or you can simply use this esmangle command in the shell.

    $ esmangle file.js
    

    Get more compressed result: (in Node.js)

    var ast = esprima.parse(code);
    // Get optimized AST
    var optimized = esmangle.optimize(ast, null);
    // gets mangled AST
    var result = esmangle.mangle(optimized);
    console.log(escodegen.generate(result, {
        format: {
            renumber: true,
            hexadecimal: true,
            escapeless: true,
            compact: true,
            semicolons: false,
            parentheses: false
        }
    }));  // dump AST
    

    Design

    Slide is here. This resolution algorithm is based on my bytecode compiler iv / lv5 / railgun.

    License

    Copyright (C) 2012 Yusuke Suzuki (twitter: @Constellation) and other contributors.

    Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

    • Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

    • Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    Keywords

    none

    Install

    npm i esmangle

    DownloadsWeekly Downloads

    6,036

    Version

    1.0.1

    License

    none

    Last publish

    Collaborators

    • constellation
    • michaelficarra