'use strict'

module.exports = unrealscript
unrealscript.displayName = 'unrealscript'
unrealscript.aliases = ['uc', 'uscript']
function unrealscript(Prism) {
  Prism.languages.unrealscript = {
    comment: /\/\/.*|\/\*[\s\S]*?\*\//,
    string: {
      pattern: /(["'])(?:\\(?:\r\n|[\s\S])|(?!\1)[^\\\r\n])*\1/,
      greedy: true
    },
    category: {
      pattern:
        /(\b(?:(?:autoexpand|hide|show)categories|var)\s*\()[^()]+(?=\))/,
      lookbehind: true,
      greedy: true,
      alias: 'property'
    },
    metadata: {
      pattern: /(\w\s*)<\s*\w+\s*=[^<>|=\r\n]+(?:\|\s*\w+\s*=[^<>|=\r\n]+)*>/,
      lookbehind: true,
      greedy: true,
      inside: {
        property: /\b\w+(?=\s*=)/,
        operator: /=/,
        punctuation: /[<>|]/
      }
    },
    macro: {
      pattern: /`\w+/,
      alias: 'property'
    },
    'class-name': {
      pattern:
        /(\b(?:class|enum|extends|interface|state(?:\(\))?|struct|within)\s+)\w+/,
      lookbehind: true
    },
    keyword:
      /\b(?:abstract|actor|array|auto|autoexpandcategories|bool|break|byte|case|class|classgroup|client|coerce|collapsecategories|config|const|continue|default|defaultproperties|delegate|dependson|deprecated|do|dontcollapsecategories|editconst|editinlinenew|else|enum|event|exec|export|extends|final|float|for|forcescriptorder|foreach|function|goto|guid|hidecategories|hidedropdown|if|ignores|implements|inherits|input|int|interface|iterator|latent|local|material|name|native|nativereplication|noexport|nontransient|noteditinlinenew|notplaceable|operator|optional|out|pawn|perobjectconfig|perobjectlocalized|placeable|postoperator|preoperator|private|protected|reliable|replication|return|server|showcategories|simulated|singular|state|static|string|struct|structdefault|structdefaultproperties|switch|texture|transient|travel|unreliable|until|var|vector|while|within)\b/,
    function: /\b[a-z_]\w*(?=\s*\()/i,
    boolean: /\b(?:false|true)\b/,
    number: /\b0x[\da-f]+\b|(?:\b\d+(?:\.\d*)?|\B\.\d+)(?:e[+-]?\d+)?/i,
    // https://docs.unrealengine.com/udk/Three/UnrealScriptExpressions.html
    operator:
      />>|<<|--|\+\+|\*\*|[-+*/~!=<>$@]=?|&&?|\|\|?|\^\^?|[?:%]|\b(?:ClockwiseFrom|Cross|Dot)\b/,
    punctuation: /[()[\]{};,.]/
  }
  Prism.languages.uc = Prism.languages.uscript = Prism.languages.unrealscript
}