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{"version":3,"file":"base64-arraybuffer.umd.js","sources":["../../src/index.ts"],"sourcesContent":["const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n\n// Use a lookup table to find the index.\nconst lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);\nfor (let i = 0; i < chars.length; i++) {\n lookup[chars.charCodeAt(i)] = i;\n}\n\nexport const encode = (arraybuffer: ArrayBuffer): string => {\n let bytes = new Uint8Array(arraybuffer),\n i,\n len = bytes.length,\n base64 = '';\n\n for (i = 0; i < len; i += 3) {\n base64 += chars[bytes[i] >> 2];\n base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];\n base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];\n base64 += chars[bytes[i + 2] & 63];\n }\n\n if (len % 3 === 2) {\n base64 = base64.substring(0, base64.length - 1) + '=';\n } else if (len % 3 === 1) {\n base64 = base64.substring(0, base64.length - 2) + '==';\n }\n\n return base64;\n};\n\nexport const decode = (base64: string): ArrayBuffer => {\n let bufferLength = base64.length * 0.75,\n len = base64.length,\n i,\n p = 0,\n encoded1,\n encoded2,\n encoded3,\n encoded4;\n\n if (base64[base64.length - 1] === '=') {\n bufferLength--;\n if (base64[base64.length - 2] === '=') {\n bufferLength--;\n }\n }\n\n const arraybuffer = new ArrayBuffer(bufferLength),\n bytes = new Uint8Array(arraybuffer);\n\n for (i = 0; i < len; i += 4) {\n encoded1 = lookup[base64.charCodeAt(i)];\n encoded2 = lookup[base64.charCodeAt(i + 1)];\n encoded3 = lookup[base64.charCodeAt(i + 2)];\n encoded4 = lookup[base64.charCodeAt(i + 3)];\n\n bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);\n bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);\n bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);\n }\n\n return arraybuffer;\n};\n"],"names":[],"mappings":";;;;;;;;;;;IAAA,IAAM,KAAK,GAAG,kEAAkE,CAAC;IAEjF;IACA,IAAM,MAAM,GAAG,OAAO,UAAU,KAAK,WAAW,GAAG,EAAE,GAAG,IAAI,UAAU,CAAC,GAAG,CAAC,CAAC;IAC5E,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,KAAK,CAAC,MAAM,EAAE,CAAC,EAAE,EAAE;QACnC,MAAM,CAAC,KAAK,CAAC,UAAU,CAAC,CAAC,CAAC,CAAC,GAAG,CAAC,CAAC;KACnC;QAEY,MAAM,GAAG,UAAC,WAAwB;QAC3C,IAAI,KAAK,GAAG,IAAI,UAAU,CAAC,WAAW,CAAC,EACnC,CAAC,EACD,GAAG,GAAG,KAAK,CAAC,MAAM,EAClB,MAAM,GAAG,EAAE,CAAC;QAEhB,KAAK,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,GAAG,EAAE,CAAC,IAAI,CAAC,EAAE;YACzB,MAAM,IAAI,KAAK,CAAC,KAAK,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC;YAC/B,MAAM,IAAI,KAAK,CAAC,CAAC,CAAC,KAAK,CAAC,CAAC,CAAC,GAAG,CAAC,KAAK,CAAC,KAAK,KAAK,CAAC,CAAC,GAAG,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC;YAC7D,MAAM,IAAI,KAAK,CAAC,CAAC,CAAC,KAAK,CAAC,CAAC,GAAG,CAAC,CAAC,GAAG,EAAE,KAAK,CAAC,KAAK,KAAK,CAAC,CAAC,GAAG,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC;YAClE,MAAM,IAAI,KAAK,CAAC,KAAK,CAAC,CAAC,GAAG,CAAC,CAAC,GAAG,EAAE,CAAC,CAAC;SACtC;QAED,IAAI,GAAG,GAAG,CAAC,KAAK,CAAC,EAAE;YACf,MAAM,GAAG,MAAM,CAAC,SAAS,CAAC,CAAC,EAAE,MAAM,CAAC,MAAM,GAAG,CAAC,CAAC,GAAG,GAAG,CAAC;SACzD;aAAM,IAAI,GAAG,GAAG,CAAC,KAAK,CAAC,EAAE;YACtB,MAAM,GAAG,MAAM,CAAC,SAAS,CAAC,CAAC,EAAE,MAAM,CAAC,MAAM,GAAG,CAAC,CAAC,GAAG,IAAI,CAAC;SAC1D;QAED,OAAO,MAAM,CAAC;IAClB,EAAE;QAEW,MAAM,GAAG,UAAC,MAAc;QACjC,IAAI,YAAY,GAAG,MAAM,CAAC,MAAM,GAAG,IAAI,EACnC,GAAG,GAAG,MAAM,CAAC,MAAM,EACnB,CAAC,EACD,CAAC,GAAG,CAAC,EACL,QAAQ,EACR,QAAQ,EACR,QAAQ,EACR,QAAQ,CAAC;QAEb,IAAI,MAAM,CAAC,MAAM,CAAC,MAAM,GAAG,CAAC,CAAC,KAAK,GAAG,EAAE;YACnC,YAAY,EAAE,CAAC;YACf,IAAI,MAAM,CAAC,MAAM,CAAC,MAAM,GAAG,CAAC,CAAC,KAAK,GAAG,EAAE;gBACnC,YAAY,EAAE,CAAC;aAClB;SACJ;QAED,IAAM,WAAW,GAAG,IAAI,WAAW,CAAC,YAAY,CAAC,EAC7C,KAAK,GAAG,IAAI,UAAU,CAAC,WAAW,CAAC,CAAC;QAExC,KAAK,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,GAAG,EAAE,CAAC,IAAI,CAAC,EAAE;YACzB,QAAQ,GAAG,MAAM,CAAC,MAAM,CAAC,UAAU,CAAC,CAAC,CAAC,CAAC,CAAC;YACxC,QAAQ,GAAG,MAAM,CAAC,MAAM,CAAC,UAAU,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC;YAC5C,QAAQ,GAAG,MAAM,CAAC,MAAM,CAAC,UAAU,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC;YAC5C,QAAQ,GAAG,MAAM,CAAC,MAAM,CAAC,UAAU,CAAC
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