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'use strict';
Object.defineProperty(exports, 'commentRegex', {
get: function getCommentRegex () {
// Groups: 1: media type, 2: MIME type, 3: charset, 4: encoding, 5: data.
return /^\s*?\/[\/\*][@#]\s+?sourceMappingURL=data:(((?:application|text)\/json)(?:;charset=([^;,]+?)?)?)?(?:;(base64))?,(.*?)$/mg;
}
});
Object.defineProperty(exports, 'mapFileCommentRegex', {
get: function getMapFileCommentRegex () {
// Matches sourceMappingURL in either // or /* comment styles.
return /(?:\/\/[@#][ \t]+?sourceMappingURL=([^\s'"`]+?)[ \t]*?$)|(?:\/\*[@#][ \t]+sourceMappingURL=([^*]+?)[ \t]*?(?:\*\/){1}[ \t]*?$)/mg;
}
});
var decodeBase64;
if (typeof Buffer !== 'undefined') {
if (typeof Buffer.from === 'function') {
decodeBase64 = decodeBase64WithBufferFrom;
} else {
decodeBase64 = decodeBase64WithNewBuffer;
}
} else {
decodeBase64 = decodeBase64WithAtob;
}
function decodeBase64WithBufferFrom(base64) {
return Buffer.from(base64, 'base64').toString();
}
function decodeBase64WithNewBuffer(base64) {
if (typeof value === 'number') {
throw new TypeError('The value to decode must not be of type number.');
}
return new Buffer(base64, 'base64').toString();
}
function decodeBase64WithAtob(base64) {
return decodeURIComponent(escape(atob(base64)));
}
function stripComment(sm) {
return sm.split(',').pop();
}
function readFromFileMap(sm, read) {
var r = exports.mapFileCommentRegex.exec(sm);
// for some odd reason //# .. captures in 1 and /* .. */ in 2
var filename = r[1] || r[2];
try {
var sm = read(filename);
if (sm != null && typeof sm.catch === 'function') {
return sm.catch(throwError);
} else {
return sm;
}
} catch (e) {
throwError(e);
}
function throwError(e) {
throw new Error('An error occurred while trying to read the map file at ' + filename + '\n' + e.stack);
}
}
function Converter (sm, opts) {
opts = opts || {};
if (opts.hasComment) {
sm = stripComment(sm);
}
if (opts.encoding === 'base64') {
sm = decodeBase64(sm);
} else if (opts.encoding === 'uri') {
sm = decodeURIComponent(sm);
}
if (opts.isJSON || opts.encoding) {
sm = JSON.parse(sm);
}
this.sourcemap = sm;
}
Converter.prototype.toJSON = function (space) {
return JSON.stringify(this.sourcemap, null, space);
};
if (typeof Buffer !== 'undefined') {
if (typeof Buffer.from === 'function') {
Converter.prototype.toBase64 = encodeBase64WithBufferFrom;
} else {
Converter.prototype.toBase64 = encodeBase64WithNewBuffer;
}
} else {
Converter.prototype.toBase64 = encodeBase64WithBtoa;
}
function encodeBase64WithBufferFrom() {
var json = this.toJSON();
return Buffer.from(json, 'utf8').toString('base64');
}
function encodeBase64WithNewBuffer() {
var json = this.toJSON();
if (typeof json === 'number') {
throw new TypeError('The json to encode must not be of type number.');
}
return new Buffer(json, 'utf8').toString('base64');
}
function encodeBase64WithBtoa() {
var json = this.toJSON();
return btoa(unescape(encodeURIComponent(json)));
}
Converter.prototype.toURI = function () {
var json = this.toJSON();
return encodeURIComponent(json);
};
Converter.prototype.toComment = function (options) {
var encoding, content, data;
if (options != null && options.encoding === 'uri') {
encoding = '';
content = this.toURI();
} else {
encoding = ';base64';
content = this.toBase64();
}
data = 'sourceMappingURL=data:application/json;charset=utf-8' + encoding + ',' + content;
return options != null && options.multiline ? '/*# ' + data + ' */' : '//# ' + data;
};
// returns copy instead of original
Converter.prototype.toObject = function () {
return JSON.parse(this.toJSON());
};
Converter.prototype.addProperty = function (key, value) {
if (this.sourcemap.hasOwnProperty(key)) throw new Error('property "' + key + '" already exists on the sourcemap, use set property instead');
return this.setProperty(key, value);
};
Converter.prototype.setProperty = function (key, value) {
this.sourcemap[key] = value;
return this;
};
Converter.prototype.getProperty = function (key) {
return this.sourcemap[key];
};
exports.fromObject = function (obj) {
return new Converter(obj);
};
exports.fromJSON = function (json) {
return new Converter(json, { isJSON: true });
};
exports.fromURI = function (uri) {
return new Converter(uri, { encoding: 'uri' });
};
exports.fromBase64 = function (base64) {
return new Converter(base64, { encoding: 'base64' });
};
exports.fromComment = function (comment) {
var m, encoding;
comment = comment
.replace(/^\/\*/g, '//')
.replace(/\*\/$/g, '');
m = exports.commentRegex.exec(comment);
encoding = m && m[4] || 'uri';
return new Converter(comment, { encoding: encoding, hasComment: true });
};
function makeConverter(sm) {
return new Converter(sm, { isJSON: true });
}
exports.fromMapFileComment = function (comment, read) {
if (typeof read === 'string') {
throw new Error(
'String directory paths are no longer supported with `fromMapFileComment`\n' +
'Please review the Upgrading documentation at https://github.com/thlorenz/convert-source-map#upgrading'
)
}
var sm = readFromFileMap(comment, read);
if (sm != null && typeof sm.then === 'function') {
return sm.then(makeConverter);
} else {
return makeConverter(sm);
}
};
// Finds last sourcemap comment in file or returns null if none was found
exports.fromSource = function (content) {
var m = content.match(exports.commentRegex);
return m ? exports.fromComment(m.pop()) : null;
};
// Finds last sourcemap comment in file or returns null if none was found
exports.fromMapFileSource = function (content, read) {
if (typeof read === 'string') {
throw new Error(
'String directory paths are no longer supported with `fromMapFileSource`\n' +
'Please review the Upgrading documentation at https://github.com/thlorenz/convert-source-map#upgrading'
)
}
var m = content.match(exports.mapFileCommentRegex);
return m ? exports.fromMapFileComment(m.pop(), read) : null;
};
exports.removeComments = function (src) {
return src.replace(exports.commentRegex, '');
};
exports.removeMapFileComments = function (src) {
return src.replace(exports.mapFileCommentRegex, '');
};
exports.generateMapFileComment = function (file, options) {
var data = 'sourceMappingURL=' + file;
return options && options.multiline ? '/*# ' + data + ' */' : '//# ' + data;
};