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arcade.js (4784B)

      1 /*
      2  Language: ArcGIS Arcade
      3  Category: scripting
      4  Author: John Foster <jfoster@esri.com>
      5  Website: https://developers.arcgis.com/arcade/
      6  Description: ArcGIS Arcade is an expression language used in many Esri ArcGIS products such as Pro, Online, Server, Runtime, JavaScript, and Python
      7 */
      8 
      9 /** @type LanguageFn */
     10 function arcade(hljs) {
     11   var IDENT_RE = '[A-Za-z_][0-9A-Za-z_]*';
     12   var KEYWORDS = {
     13     keyword:
     14       'if for while var new function do return void else break',
     15     literal:
     16       'BackSlash DoubleQuote false ForwardSlash Infinity NaN NewLine null PI SingleQuote Tab TextFormatting true undefined',
     17     built_in:
     18       'Abs Acos Angle Attachments Area AreaGeodetic Asin Atan Atan2 Average Bearing Boolean Buffer BufferGeodetic ' +
     19       'Ceil Centroid Clip Console Constrain Contains Cos Count Crosses Cut Date DateAdd ' +
     20       'DateDiff Day Decode DefaultValue Dictionary Difference Disjoint Distance DistanceGeodetic Distinct ' +
     21       'DomainCode DomainName Equals Exp Extent Feature FeatureSet FeatureSetByAssociation FeatureSetById FeatureSetByPortalItem ' +
     22       'FeatureSetByRelationshipName FeatureSetByTitle FeatureSetByUrl Filter First Floor Geometry GroupBy Guid HasKey Hour IIf IndexOf ' +
     23       'Intersection Intersects IsEmpty IsNan IsSelfIntersecting Length LengthGeodetic Log Max Mean Millisecond Min Minute Month ' +
     24       'MultiPartToSinglePart Multipoint NextSequenceValue Now Number OrderBy Overlaps Point Polygon ' +
     25       'Polyline Portal Pow Random Relate Reverse RingIsClockWise Round Second SetGeometry Sin Sort Sqrt Stdev Sum ' +
     26       'SymmetricDifference Tan Text Timestamp Today ToLocal Top Touches ToUTC TrackCurrentTime ' +
     27       'TrackGeometryWindow TrackIndex TrackStartTime TrackWindow TypeOf Union UrlEncode Variance ' +
     28       'Weekday When Within Year '
     29   };
     30   var SYMBOL = {
     31     className: 'symbol',
     32     begin: '\\$[datastore|feature|layer|map|measure|sourcefeature|sourcelayer|targetfeature|targetlayer|value|view]+'
     33   };
     34   var NUMBER = {
     35     className: 'number',
     36     variants: [
     37       { begin: '\\b(0[bB][01]+)' },
     38       { begin: '\\b(0[oO][0-7]+)' },
     39       { begin: hljs.C_NUMBER_RE }
     40     ],
     41     relevance: 0
     42   };
     43   var SUBST = {
     44     className: 'subst',
     45     begin: '\\$\\{', end: '\\}',
     46     keywords: KEYWORDS,
     47     contains: [] // defined later
     48   };
     49   var TEMPLATE_STRING = {
     50     className: 'string',
     51     begin: '`', end: '`',
     52     contains: [
     53       hljs.BACKSLASH_ESCAPE,
     54       SUBST
     55     ]
     56   };
     57   SUBST.contains = [
     58     hljs.APOS_STRING_MODE,
     59     hljs.QUOTE_STRING_MODE,
     60     TEMPLATE_STRING,
     61     NUMBER,
     62     hljs.REGEXP_MODE
     63   ];
     64   var PARAMS_CONTAINS = SUBST.contains.concat([
     65     hljs.C_BLOCK_COMMENT_MODE,
     66     hljs.C_LINE_COMMENT_MODE
     67   ]);
     68 
     69   return {
     70     name: 'ArcGIS Arcade',
     71     aliases: ['arcade'],
     72     keywords: KEYWORDS,
     73     contains: [
     74       hljs.APOS_STRING_MODE,
     75       hljs.QUOTE_STRING_MODE,
     76       TEMPLATE_STRING,
     77       hljs.C_LINE_COMMENT_MODE,
     78       hljs.C_BLOCK_COMMENT_MODE,
     79       SYMBOL,
     80       NUMBER,
     81       { // object attr container
     82         begin: /[{,]\s*/, relevance: 0,
     83         contains: [
     84           {
     85             begin: IDENT_RE + '\\s*:', returnBegin: true,
     86             relevance: 0,
     87             contains: [{className: 'attr', begin: IDENT_RE, relevance: 0}]
     88           }
     89         ]
     90       },
     91       { // "value" container
     92         begin: '(' + hljs.RE_STARTERS_RE + '|\\b(return)\\b)\\s*',
     93         keywords: 'return',
     94         contains: [
     95           hljs.C_LINE_COMMENT_MODE,
     96           hljs.C_BLOCK_COMMENT_MODE,
     97           hljs.REGEXP_MODE,
     98           {
     99             className: 'function',
    100             begin: '(\\(.*?\\)|' + IDENT_RE + ')\\s*=>', returnBegin: true,
    101             end: '\\s*=>',
    102             contains: [
    103               {
    104                 className: 'params',
    105                 variants: [
    106                   {
    107                     begin: IDENT_RE
    108                   },
    109                   {
    110                     begin: /\(\s*\)/,
    111                   },
    112                   {
    113                     begin: /\(/, end: /\)/,
    114                     excludeBegin: true, excludeEnd: true,
    115                     keywords: KEYWORDS,
    116                     contains: PARAMS_CONTAINS
    117                   }
    118                 ]
    119               }
    120             ]
    121           }
    122         ],
    123         relevance: 0
    124       },
    125       {
    126         className: 'function',
    127         beginKeywords: 'function', end: /\{/, excludeEnd: true,
    128         contains: [
    129           hljs.inherit(hljs.TITLE_MODE, {begin: IDENT_RE}),
    130           {
    131             className: 'params',
    132             begin: /\(/, end: /\)/,
    133             excludeBegin: true,
    134             excludeEnd: true,
    135             contains: PARAMS_CONTAINS
    136           }
    137         ],
    138         illegal: /\[|%/
    139       },
    140       {
    141         begin: /\$[(.]/
    142       }
    143     ],
    144     illegal: /#(?!!)/
    145   };
    146 }
    147 
    148 module.exports = arcade;