1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859
/*! * Based on https://github.com/jshttp/negotiator/blob/master/index.js * Copyright(c) 2012 Federico Romero * Copyright(c) 2012-2014 Isaac Z. Schlueter * Copyright(c) 2015 Douglas Christopher Wilson * Copyright(c) 2020 Henry Zhuang * MIT Licensed */
import { preferredCharsets } from "./src/charset.ts";import { preferredEncodings } from "./src/encoding.ts";import { preferredLanguages } from "./src/language.ts";import { preferredMediaTypes } from "./src/media_type.ts";
class Negotiator {  constructor(headers: Headers) {    this.headers = headers;  }  private headers: Headers;
  charset(available?: string[]): string {    const set = this.charsets(available);    return set && set[0];  }
  charsets(available?: string[]): string[] {    return preferredCharsets(this.headers.get("accept-charset"), available);  }
  encoding(available?: string[]): string {    const set = this.encodings(available);    return set && set[0];  }
  encodings(available?: string[]): string[] {    return preferredEncodings(this.headers.get("accept-encoding"), available);  }
  language(available?: string[]): string {    const set = this.languages(available);    return set && set[0];  }
  languages(available?: string[]): string[] {    return preferredLanguages(this.headers.get("accept-language"), available);  }
  mediaType(available?: string[]): string {    const set = this.mediaTypes(available);    return set && set[0];  }
  mediaTypes(available?: string[]): string[] {    return preferredMediaTypes(this.headers.get("accept"), available);  }}
export default Negotiator;