import { RegExpUtility } from "../RegExpUtitlity";
import { Lexer } from "./Lexer";
import { LexerMatcher } from "./LexerMatcher";
import { LexerMatcherLibrary } from "./LexerMatcherLibrary";
import { LexerType } from "./LexerType";

export type PHP_KEYWORD = "PHP_KEYWORD";
export type PHP_START = "PHP_START";
export type PHP_END = "PHP_END";
export type PHP_CONSTANT = "PHP_CONSTANT";

export type PHPLexerType = LexerType | PHP_KEYWORD | PHP_START | PHP_END | PHP_CONSTANT;

export class PHPLexer extends Lexer
{
  static readonly predefined = 
  [
    "NULL","E_CORE_ERROR","Exception","PATHINFO_FILENAME","JSON_PRETTY_PRINT","__DIR__",
    "ENT_QUOTES","PREG_OFFSET_CAPTURE","PREG_SPLIT_DELIM_CAPTURE","PREG_SPLIT_NO_EMPTY",
    "PHP_INT_MAX","SEEK_CUR","SEEK_SET",

    "CURLOPT_URL","CURLOPT_RETURNTRANSFER","CURLOPT_USERAGENT","E_USER_ERROR","E_USER_NOTICE","E_USER_WARNING",

    "JSON_ERROR_NONE", "JSON_ERROR_DEPTH", "JSON_ERROR_STATE_MISMATCH", "JSON_ERROR_CTRL_CHAR", 
    "JSON_ERROR_SYNTAX", "JSON_ERROR_UTF8", "JSON_ERROR_RECURSION", "JSON_ERROR_INF_OR_NAN", 
    "JSON_ERROR_UNSUPPORTED_TYPE", "JSON_ERROR_INVALID_PROPERTY_NAME", "JSON_ERROR_UTF16"
  ]
  
  static readonly PHP_CONSTANT:PHP_CONSTANT = "PHP_CONSTANT";
  static readonly PHP_CONSTANT_MATCHER = 
    new LexerMatcher( PHPLexer.PHP_CONSTANT, RegExpUtility.createFromList( PHPLexer.predefined ) );

  static readonly PHP_KEYWORD:PHP_KEYWORD = "PHP_KEYWORD";

  static readonly PHP_KEYWORD_MATCHER = 
    new LexerMatcher( PHPLexer.PHP_KEYWORD, /include_once|include|require_once|require|extends|function|const/ );

  static readonly PHP_START:PHP_START = "PHP_START";
  
  static readonly PHP_START_MATCHER = 
      new LexerMatcher( PHPLexer.PHP_START, /\<\?php/ );

  static readonly PHP_END:PHP_END = "PHP_END";
  
  static readonly PHP_END_MATCHER = 
        new LexerMatcher( PHPLexer.PHP_END, /\?\>/ );

  constructor()
  {
    super();

    this.addAllMatchers( 
      LexerMatcherLibrary.SINGLE_LINE_COMMENT_MATCHER,
      LexerMatcherLibrary.MULTI_LINE_COMMENT_MATCHER,
      LexerMatcherLibrary.DOUBLE_QUOTED_STRING_MATCHER,
      LexerMatcherLibrary.SINGLE_QUOTED_STRING_MATCHER,
      PHPLexer.PHP_CONSTANT_MATCHER,
      PHPLexer.PHP_START_MATCHER,
      PHPLexer.PHP_END_MATCHER,
      LexerMatcherLibrary.NUMBER_MATCHER,
      LexerMatcherLibrary.NULL_MATCHER,
      LexerMatcherLibrary.BOOL_MATCHER,
      LexerMatcherLibrary.BREAK_MATCHER,
      LexerMatcherLibrary.WHITESPACE_MATCHER,
      LexerMatcherLibrary.LOGIC_MATCHER,
      LexerMatcherLibrary.BRACKET_MATCHER,
      LexerMatcherLibrary.ACCESS_MODIFIER_MATCHER,
      LexerMatcherLibrary.CLASS_MATCHER,
      PHPLexer.PHP_KEYWORD_MATCHER,
      LexerMatcherLibrary.OPERATOR_MATCHER,
      LexerMatcherLibrary.PHPWORD_MATCHER,
      LexerMatcherLibrary.ANY_SYMBOL_MATCHER
    );

  }
}