<?php

/*
 * TODO: user defined types and stuff
 *
 */

class LuminousAdaScanner extends LuminousSimpleScanner {
  
  public function init() {
    // http://en.wikibooks.org/wiki/Ada_Programming/Keywords
    // http://en.wikibooks.org/wiki/Ada_Programming/All_Keywords
    $kws = array('abort', 'abstract', 'accept', 'access', 'aliased',
      'all', 'array', 'at',
      'begin', 'body',
      'case', 'constant',
      'declare','delay', 'delta', 'digits', 'do',
      'else', 'elsif', 'end', 'entry', 'exception', 'exit',
      'for', 'function',
      'generic', 'goto',
      'if',  'interface', 'is',
      'limited', 'loop',
      'new',
      'of', 'others', 'out', 'overriding',
      'package', 'pragma', 'private', 'procedure', 'protected',
      'raise', 'range', 'record', 'renames', 'requeue', 'return', 'reverse',
      'select', 'separate', 'subtype', 'synchronized',
      'tagged', 'task', 'terminate', 'then', 'type',
      'until', 'use',
      'when', 'while', 'with',
    );
    $ops = array('abs', 'and', 'in', 'mod', 'not', 'or', 'rem', 'xor');
    $vals = array('false', 'null', 'true');
    // http://en.wikibooks.org/wiki/Ada_Programming/Type_System#Predefined_types
    $types = array('Float', 'Duration', 'Character', 'String', 'Boolean',
      'Address', 'Storage_Offset', 'Storage_Count', 'Storage_Element',
      'Storage_Array',
      'Wide_character', 'Wide_Wide_Character',
      'Wide_String', 'Wide_Wide_String',
      'Integer',
      'Long', 'Short', 'Byte');

    $ident = '(?i:[a-z](?:_?[a-z]++|\d++)*+)';
    // http://en.wikibooks.org/wiki/Ada_Programming/Lexical_elements#Identifiers
    $this->add_pattern('OO', "/(?<=[a-z0-9_]')$ident/");
    $this->add_pattern('IDENT', "/$ident/");
    // http://en.wikibooks.org/wiki/Ada_Programming/Lexical_elements#Numbers
    // no bnf :( might be wrong
    $this->add_pattern('NUMERIC', '/\d+#[a-f0-9]*#/i');
    $this->add_pattern('NUMERIC', "/[0-9]++[0-9_]*+(\.[0-9_]++)?([eE][\-+]?[0-9_]++)?/");
    $this->add_pattern('COMMENT', '/--.*/');
    $this->add_pattern('OPERATOR', '@=|/=|>=?|<=?|\+|-|\*\*?|/|&|:=@');

    // http://rosettacode.org/wiki/Special_characters#Ada
    $this->add_pattern('CHARACTER', "/'.'/");
    $this->add_pattern('STRING', '/"(?:[^"]++|"")*"/');
    
    $this->add_identifier_mapping('KEYWORD', $kws);
    $this->add_identifier_mapping('OPERATOR', $ops);
    $this->add_identifier_mapping('VALUE', $vals);
    $this->add_identifier_mapping('TYPE', $types);
  }
}