// lessc_helper.js
//
//      helper functions for lessc
var lessc_helper = {
    // Stylize a string
    stylize: function (str, style) {
        var styles = {
            'reset': [0, 0],
            'bold': [1, 22],
            'inverse': [7, 27],
            'underline': [4, 24],
            'yellow': [33, 39],
            'green': [32, 39],
            'red': [31, 39],
            'grey': [90, 39]
        };
        return "\u001B[" + styles[style][0] + "m" + str + "\u001B[" + styles[style][1] + "m";
    },
    // Print command line options
    printUsage: function () {
        console.log('usage: lessc [option option=parameter ...] <source> [destination]');
        console.log('');
        console.log('If source is set to `-\' (dash or hyphen-minus), input is read from stdin.');
        console.log('');
        console.log('options:');
        console.log('  -h, --help                   Prints help (this message) and exit.');
        console.log('  --include-path=PATHS         Sets include paths. Separated by `:\'. `;\' also supported on windows.');
        console.log('  -M, --depends                Outputs a makefile import dependency list to stdout.');
        console.log('  --no-color                   Disables colorized output.');
        console.log('  --ie-compat                  Enables IE8 compatibility checks.');
        console.log('  --js                         Enables inline JavaScript in less files');
        console.log('  -l, --lint                   Syntax check only (lint).');
        console.log('  -s, --silent                 Suppresses output of error messages.');
        console.log('  --strict-imports             Forces evaluation of imports.');
        console.log('  --insecure                   Allows imports from insecure https hosts.');
        console.log('  -v, --version                Prints version number and exit.');
        console.log('  --verbose                    Be verbose.');
        console.log('  --source-map[=FILENAME]      Outputs a v3 sourcemap to the filename (or output filename.map).');
        console.log('  --source-map-rootpath=X      Adds this path onto the sourcemap filename and less file paths.');
        console.log('  --source-map-basepath=X      Sets sourcemap base path, defaults to current working directory.');
        console.log('  --source-map-include-source  Puts the less files into the map instead of referencing them.');
        console.log('  --source-map-inline          Puts the map (and any less files) as a base64 data uri into the output css file.');
        console.log('  --source-map-url=URL         Sets a custom URL to map file, for sourceMappingURL comment');
        console.log('                               in generated CSS file.');
        console.log('  --source-map-no-annotation   Excludes the sourceMappingURL comment from the output css file.');
        console.log('  -rp, --rootpath=URL          Sets rootpath for url rewriting in relative imports and urls');
        console.log('                               Works with or without the relative-urls option.');
        console.log('  -ru=, --rewrite-urls=        Rewrites URLs to make them relative to the base less file.');
        console.log('    all|local|off              \'all\' rewrites all URLs, \'local\' just those starting with a \'.\'');
        console.log('');
        console.log('  -m=, --math=');
        console.log('     always                    Less will eagerly perform math operations always.');
        console.log('     parens-division           Math performed except for division (/) operator');
        console.log('     parens | strict           Math only performed inside parentheses');
        console.log('     strict-legacy             Parens required in very strict terms (legacy --strict-math)');
        console.log('');
        console.log('  -su=on|off                   Allows mixed units, e.g. 1px+1em or 1px*1px which have units');
        console.log('  --strict-units=on|off        that cannot be represented.');
        console.log('  --global-var=\'VAR=VALUE\'     Defines a variable that can be referenced by the file.');
        console.log('  --modify-var=\'VAR=VALUE\'     Modifies a variable already declared in the file.');
        console.log('  --url-args=\'QUERYSTRING\'     Adds params into url tokens (e.g. 42, cb=42 or \'a=1&b=2\')');
        console.log('  --plugin=PLUGIN=OPTIONS      Loads a plugin. You can also omit the --plugin= if the plugin begins');
        console.log('                               less-plugin. E.g. the clean css plugin is called less-plugin-clean-css');
        console.log('                               once installed (npm install less-plugin-clean-css), use either with');
        console.log('                               --plugin=less-plugin-clean-css or just --clean-css');
        console.log('                               specify options afterwards e.g. --plugin=less-plugin-clean-css="advanced"');
        console.log('                               or --clean-css="advanced"');
        console.log('  --disable-plugin-rule        Disallow @plugin statements');
        console.log('');
        console.log('-------------------------- Deprecated ----------------');
        console.log('  -sm=on|off               Legacy parens-only math. Use --math');
        console.log('  --strict-math=on|off     ');
        console.log('');
        console.log('  --line-numbers=TYPE      Outputs filename and line numbers.');
        console.log('                           TYPE can be either \'comments\', which will output');
        console.log('                           the debug info within comments, \'mediaquery\'');
        console.log('                           that will output the information within a fake');
        console.log('                           media query which is compatible with the SASS');
        console.log('                           format, and \'all\' which will do both.');
        console.log('  -x, --compress           Compresses output by removing some whitespaces.');
        console.log('                           We recommend you use a dedicated minifer like less-plugin-clean-css');
        console.log('');
        console.log('Report bugs to: http://github.com/less/less.js/issues');
        console.log('Home page: <http://lesscss.org/>');
    }
};
// Exports helper functions
for (var h in lessc_helper) {
    if (lessc_helper.hasOwnProperty(h)) {
        exports[h] = lessc_helper[h];
    }
}
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