bom

This produces BOM characters for the charset specified in the parameter.

Created by: hackvertor

Installed 1 times

Category: Charsets

Created on: Friday, November 1, 2024 at 11:36:46 AM

Updated on: Wednesday, November 20, 2024 at 5:32:26 PM

This is a built in tag

Tag arguments

[
   {
      "type": "string",
      "help": "This provides the charset - Supported charsets are: UTF-8,UTF16BE,UTF16LE,UTF32BE,UTF32LE,UTF-7,SCSU,BOCU1,GB18030,UTF1,UTF-EBCDIC,UTF-7Modified",
      "defaultValue": "UTF-8"
   }
]

Code

class bom {
  encode(input, charset) {
    const boms = {
      __proto__: null,
      "UTF-8": String.fromCodePoint(0xef, 0xbb, 0xbf),
      UTF16BE: String.fromCodePoint(0xfe, 0xff),
      UTF16LE: String.fromCodePoint(0xff, 0xfe),
      UTF32BE: String.fromCodePoint(0x00, 0x00, 0xfe, 0xff),
      UTF32LE: String.fromCodePoint(0xff, 0xfe, 0x00, 0x00),
      "UTF-7": String.fromCodePoint(0x2b, 0x2f, 0x76, 0x38, 0x2d),
      SCSU: String.fromCodePoint(0x0e, 0xfe, 0xff),
      BOCU1: String.fromCodePoint(0xfb, 0xee, 0x28),
      GB18030: String.fromCodePoint(0x84, 0x31, 0x95, 0x33),
      UTF1: String.fromCodePoint(0xf7, 0x64, 0x4c),
      CESU8: String.fromCodePoint(0xef, 0xbb, 0xbf),
      "UTF-EBCDIC": String.fromCodePoint(0xdd, 0x73, 0x66, 0x73),
      "UTF-7MODIFIED": String.fromCodePoint(0x2b, 0x2f, 0x76, 0x38),
    };
    return boms[charset.toUpperCase()];
  }
}