GPQAPP

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// CodeMirror, copyright (c) by Marijn Haverbeke and others
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// Distributed under an MIT license: https://codemirror.net/LICENSE
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(function(mod) {
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  if (typeof exports == "object" && typeof module == "object") // CommonJS
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    mod(require("../../lib/codemirror"));
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  else if (typeof define == "function" && define.amd) // AMD
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    define(["../../lib/codemirror"], mod);
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  else // Plain browser env
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    mod(CodeMirror);
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})(function(CodeMirror) {
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"use strict";
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CodeMirror.defineMode("xquery", function() {
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  // The keywords object is set to the result of this self executing
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  // function. Each keyword is a property of the keywords object whose
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  // value is {type: atype, style: astyle}
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  var keywords = function(){
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    // convenience functions used to build keywords object
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    function kw(type) {return {type: type, style: "keyword"};}
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    var operator = kw("operator")
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      , atom = {type: "atom", style: "atom"}
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      , punctuation = {type: "punctuation", style: null}
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      , qualifier = {type: "axis_specifier", style: "qualifier"};
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    // kwObj is what is return from this function at the end
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    var kwObj = {
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      ',': punctuation
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    };
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    // a list of 'basic' keywords. For each add a property to kwObj with the value of
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    // {type: basic[i], style: "keyword"} e.g. 'after' --> {type: "after", style: "keyword"}
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    var basic = ['after', 'all', 'allowing', 'ancestor', 'ancestor-or-self', 'any', 'array', 'as',
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    'ascending', 'at', 'attribute', 'base-uri', 'before', 'boundary-space', 'by', 'case', 'cast',
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    'castable', 'catch', 'child', 'collation', 'comment', 'construction', 'contains', 'content',
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    'context', 'copy', 'copy-namespaces', 'count', 'decimal-format', 'declare', 'default', 'delete',
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    'descendant', 'descendant-or-self', 'descending', 'diacritics', 'different', 'distance',
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    'document', 'document-node', 'element', 'else', 'empty', 'empty-sequence', 'encoding', 'end',
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    'entire', 'every', 'exactly', 'except', 'external', 'first', 'following', 'following-sibling',
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    'for', 'from', 'ftand', 'ftnot', 'ft-option', 'ftor', 'function', 'fuzzy', 'greatest', 'group',
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    'if', 'import', 'in', 'inherit', 'insensitive', 'insert', 'instance', 'intersect', 'into',
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    'invoke', 'is', 'item', 'language', 'last', 'lax', 'least', 'let', 'levels', 'lowercase', 'map',
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    'modify', 'module', 'most', 'namespace', 'next', 'no', 'node', 'nodes', 'no-inherit',
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    'no-preserve', 'not', 'occurs', 'of', 'only', 'option', 'order', 'ordered', 'ordering',
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    'paragraph', 'paragraphs', 'parent', 'phrase', 'preceding', 'preceding-sibling', 'preserve',
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    'previous', 'processing-instruction', 'relationship', 'rename', 'replace', 'return',
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    'revalidation', 'same', 'satisfies', 'schema', 'schema-attribute', 'schema-element', 'score',
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    'self', 'sensitive', 'sentence', 'sentences', 'sequence', 'skip', 'sliding', 'some', 'stable',
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    'start', 'stemming', 'stop', 'strict', 'strip', 'switch', 'text', 'then', 'thesaurus', 'times',
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    'to', 'transform', 'treat', 'try', 'tumbling', 'type', 'typeswitch', 'union', 'unordered',
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    'update', 'updating', 'uppercase', 'using', 'validate', 'value', 'variable', 'version',
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    'weight', 'when', 'where', 'wildcards', 'window', 'with', 'without', 'word', 'words', 'xquery'];
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    for(var i=0, l=basic.length; i < l; i++) { kwObj[basic[i]] = kw(basic[i]);};
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    // a list of types. For each add a property to kwObj with the value of
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    // {type: "atom", style: "atom"}
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    var types = ['xs:anyAtomicType', 'xs:anySimpleType', 'xs:anyType', 'xs:anyURI',
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    'xs:base64Binary', 'xs:boolean', 'xs:byte', 'xs:date', 'xs:dateTime', 'xs:dateTimeStamp',
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    'xs:dayTimeDuration', 'xs:decimal', 'xs:double', 'xs:duration', 'xs:ENTITIES', 'xs:ENTITY',
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    'xs:float', 'xs:gDay', 'xs:gMonth', 'xs:gMonthDay', 'xs:gYear', 'xs:gYearMonth', 'xs:hexBinary',
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    'xs:ID', 'xs:IDREF', 'xs:IDREFS', 'xs:int', 'xs:integer', 'xs:item', 'xs:java', 'xs:language',
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    'xs:long', 'xs:Name', 'xs:NCName', 'xs:negativeInteger', 'xs:NMTOKEN', 'xs:NMTOKENS',
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    'xs:nonNegativeInteger', 'xs:nonPositiveInteger', 'xs:normalizedString', 'xs:NOTATION',
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    'xs:numeric', 'xs:positiveInteger', 'xs:precisionDecimal', 'xs:QName', 'xs:short', 'xs:string',
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    'xs:time', 'xs:token', 'xs:unsignedByte', 'xs:unsignedInt', 'xs:unsignedLong',
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    'xs:unsignedShort', 'xs:untyped', 'xs:untypedAtomic', 'xs:yearMonthDuration'];
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    for(var i=0, l=types.length; i < l; i++) { kwObj[types[i]] = atom;};
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    // each operator will add a property to kwObj with value of {type: "operator", style: "keyword"}
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    var operators = ['eq', 'ne', 'lt', 'le', 'gt', 'ge', ':=', '=', '>', '>=', '<', '<=', '.', '|', '?', 'and', 'or', 'div', 'idiv', 'mod', '*', '/', '+', '-'];
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    for(var i=0, l=operators.length; i < l; i++) { kwObj[operators[i]] = operator;};
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    // each axis_specifiers will add a property to kwObj with value of {type: "axis_specifier", style: "qualifier"}
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    var axis_specifiers = ["self::", "attribute::", "child::", "descendant::", "descendant-or-self::", "parent::",
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    "ancestor::", "ancestor-or-self::", "following::", "preceding::", "following-sibling::", "preceding-sibling::"];
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    for(var i=0, l=axis_specifiers.length; i < l; i++) { kwObj[axis_specifiers[i]] = qualifier; };
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    return kwObj;
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  }();
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  function chain(stream, state, f) {
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    state.tokenize = f;
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    return f(stream, state);
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  }
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  // the primary mode tokenizer
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  function tokenBase(stream, state) {
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    var ch = stream.next(),
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        mightBeFunction = false,
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        isEQName = isEQNameAhead(stream);
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    // an XML tag (if not in some sub, chained tokenizer)
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    if (ch == "<") {
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      if(stream.match("!--", true))
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        return chain(stream, state, tokenXMLComment);
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      if(stream.match("![CDATA", false)) {
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        state.tokenize = tokenCDATA;
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        return "tag";
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      }
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      if(stream.match("?", false)) {
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        return chain(stream, state, tokenPreProcessing);
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      }
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      var isclose = stream.eat("/");
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      stream.eatSpace();
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      var tagName = "", c;
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      while ((c = stream.eat(/[^\s\u00a0=<>\"\'\/?]/))) tagName += c;
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      return chain(stream, state, tokenTag(tagName, isclose));
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    }
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    // start code block
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    else if(ch == "{") {
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      pushStateStack(state, { type: "codeblock"});
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      return null;
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    }
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    // end code block
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    else if(ch == "}") {
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      popStateStack(state);
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      return null;
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    }
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    // if we're in an XML block
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    else if(isInXmlBlock(state)) {
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      if(ch == ">")
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        return "tag";
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      else if(ch == "/" && stream.eat(">")) {
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        popStateStack(state);
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        return "tag";
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      }
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      else
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        return "variable";
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    }
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    // if a number
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    else if (/\d/.test(ch)) {
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      stream.match(/^\d*(?:\.\d*)?(?:E[+\-]?\d+)?/);
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      return "atom";
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    }
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    // comment start
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    else if (ch === "(" && stream.eat(":")) {
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      pushStateStack(state, { type: "comment"});
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      return chain(stream, state, tokenComment);
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    }
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    // quoted string
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    else if (!isEQName && (ch === '"' || ch === "'"))
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      return chain(stream, state, tokenString(ch));
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    // variable
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    else if(ch === "$") {
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      return chain(stream, state, tokenVariable);
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    }
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    // assignment
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    else if(ch ===":" && stream.eat("=")) {
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      return "keyword";
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    }
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    // open paren
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    else if(ch === "(") {
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      pushStateStack(state, { type: "paren"});
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      return null;
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    }
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    // close paren
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    else if(ch === ")") {
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      popStateStack(state);
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      return null;
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    }
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    // open paren
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    else if(ch === "[") {
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      pushStateStack(state, { type: "bracket"});
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      return null;
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    }
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    // close paren
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    else if(ch === "]") {
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      popStateStack(state);
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      return null;
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    }
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    else {
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      var known = keywords.propertyIsEnumerable(ch) && keywords[ch];
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      // if there's a EQName ahead, consume the rest of the string portion, it's likely a function
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      if(isEQName && ch === '\"') while(stream.next() !== '"'){}
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      if(isEQName && ch === '\'') while(stream.next() !== '\''){}
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      // gobble up a word if the character is not known
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      if(!known) stream.eatWhile(/[\w\$_-]/);
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      // gobble a colon in the case that is a lib func type call fn:doc
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      var foundColon = stream.eat(":");
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      // if there's not a second colon, gobble another word. Otherwise, it's probably an axis specifier
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      // which should get matched as a keyword
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      if(!stream.eat(":") && foundColon) {
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        stream.eatWhile(/[\w\$_-]/);
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      }
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      // if the next non whitespace character is an open paren, this is probably a function (if not a keyword of other sort)
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      if(stream.match(/^[ \t]*\(/, false)) {
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        mightBeFunction = true;
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      }
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      // is the word a keyword?
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      var word = stream.current();
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      known = keywords.propertyIsEnumerable(word) && keywords[word];
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      // if we think it's a function call but not yet known,
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      // set style to variable for now for lack of something better
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      if(mightBeFunction && !known) known = {type: "function_call", style: "variable def"};
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      // if the previous word was element, attribute, axis specifier, this word should be the name of that
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      if(isInXmlConstructor(state)) {
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        popStateStack(state);
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        return "variable";
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      }
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      // as previously checked, if the word is element,attribute, axis specifier, call it an "xmlconstructor" and
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      // push the stack so we know to look for it on the next word
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      if(word == "element" || word == "attribute" || known.type == "axis_specifier") pushStateStack(state, {type: "xmlconstructor"});
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      // if the word is known, return the details of that else just call this a generic 'word'
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      return known ? known.style : "variable";
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    }
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  }
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  // handle comments, including nested
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  function tokenComment(stream, state) {
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    var maybeEnd = false, maybeNested = false, nestedCount = 0, ch;
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    while (ch = stream.next()) {
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      if (ch == ")" && maybeEnd) {
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        if(nestedCount > 0)
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          nestedCount--;
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        else {
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          popStateStack(state);
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          break;
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        }
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      }
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      else if(ch == ":" && maybeNested) {
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        nestedCount++;
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      }
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      maybeEnd = (ch == ":");
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      maybeNested = (ch == "(");
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    }
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    return "comment";
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  }
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  // tokenizer for string literals
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  // optionally pass a tokenizer function to set state.tokenize back to when finished
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  function tokenString(quote, f) {
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    return function(stream, state) {
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      var ch;
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      if(isInString(state) && stream.current() == quote) {
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        popStateStack(state);
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        if(f) state.tokenize = f;
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        return "string";
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      }
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      pushStateStack(state, { type: "string", name: quote, tokenize: tokenString(quote, f) });
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      // if we're in a string and in an XML block, allow an embedded code block
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      if(stream.match("{", false) && isInXmlAttributeBlock(state)) {
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        state.tokenize = tokenBase;
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        return "string";
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      }
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      while (ch = stream.next()) {
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        if (ch ==  quote) {
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          popStateStack(state);
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          if(f) state.tokenize = f;
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          break;
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        }
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        else {
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          // if we're in a string and in an XML block, allow an embedded code block in an attribute
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          if(stream.match("{", false) && isInXmlAttributeBlock(state)) {
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            state.tokenize = tokenBase;
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            return "string";
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          }
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        }
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      }
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      return "string";
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    };
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  }
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  // tokenizer for variables
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  function tokenVariable(stream, state) {
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    var isVariableChar = /[\w\$_-]/;
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    // a variable may start with a quoted EQName so if the next character is quote, consume to the next quote
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    if(stream.eat("\"")) {
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      while(stream.next() !== '\"'){};
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      stream.eat(":");
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    } else {
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      stream.eatWhile(isVariableChar);
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      if(!stream.match(":=", false)) stream.eat(":");
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    }
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    stream.eatWhile(isVariableChar);
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    state.tokenize = tokenBase;
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    return "variable";
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  }
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  // tokenizer for XML tags
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  function tokenTag(name, isclose) {
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    return function(stream, state) {
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      stream.eatSpace();
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      if(isclose && stream.eat(">")) {
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        popStateStack(state);
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        state.tokenize = tokenBase;
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        return "tag";
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      }
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      // self closing tag without attributes?
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      if(!stream.eat("/"))
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        pushStateStack(state, { type: "tag", name: name, tokenize: tokenBase});
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      if(!stream.eat(">")) {
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        state.tokenize = tokenAttribute;
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        return "tag";
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      }
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      else {
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        state.tokenize = tokenBase;
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      }
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      return "tag";
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    };
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  }
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  // tokenizer for XML attributes
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  function tokenAttribute(stream, state) {
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    var ch = stream.next();
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    if(ch == "/" && stream.eat(">")) {
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      if(isInXmlAttributeBlock(state)) popStateStack(state);
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      if(isInXmlBlock(state)) popStateStack(state);
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      return "tag";
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    }
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    if(ch == ">") {
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      if(isInXmlAttributeBlock(state)) popStateStack(state);
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      return "tag";
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    }
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    if(ch == "=")
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      return null;
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    // quoted string
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    if (ch == '"' || ch == "'")
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      return chain(stream, state, tokenString(ch, tokenAttribute));
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    if(!isInXmlAttributeBlock(state))
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      pushStateStack(state, { type: "attribute", tokenize: tokenAttribute});
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    stream.eat(/[a-zA-Z_:]/);
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    stream.eatWhile(/[-a-zA-Z0-9_:.]/);
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    stream.eatSpace();
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    // the case where the attribute has not value and the tag was closed
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    if(stream.match(">", false) || stream.match("/", false)) {
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      popStateStack(state);
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      state.tokenize = tokenBase;
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    }
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    return "attribute";
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  }
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  // handle comments, including nested
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  function tokenXMLComment(stream, state) {
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    var ch;
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    while (ch = stream.next()) {
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      if (ch == "-" && stream.match("->", true)) {
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        state.tokenize = tokenBase;
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        return "comment";
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      }
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    }
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  }
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  // handle CDATA
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  function tokenCDATA(stream, state) {
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    var ch;
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    while (ch = stream.next()) {
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      if (ch == "]" && stream.match("]", true)) {
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        state.tokenize = tokenBase;
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        return "comment";
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      }
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    }
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  }
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  // handle preprocessing instructions
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  function tokenPreProcessing(stream, state) {
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    var ch;
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    while (ch = stream.next()) {
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      if (ch == "?" && stream.match(">", true)) {
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        state.tokenize = tokenBase;
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        return "comment meta";
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      }
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    }
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  }
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  // functions to test the current context of the state
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  function isInXmlBlock(state) { return isIn(state, "tag"); }
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  function isInXmlAttributeBlock(state) { return isIn(state, "attribute"); }
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  function isInXmlConstructor(state) { return isIn(state, "xmlconstructor"); }
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  function isInString(state) { return isIn(state, "string"); }
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  function isEQNameAhead(stream) {
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    // assume we've already eaten a quote (")
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    if(stream.current() === '"')
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      return stream.match(/^[^\"]+\"\:/, false);
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    else if(stream.current() === '\'')
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      return stream.match(/^[^\"]+\'\:/, false);
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    else
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      return false;
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  }
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  function isIn(state, type) {
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    return (state.stack.length && state.stack[state.stack.length - 1].type == type);
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  }
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  function pushStateStack(state, newState) {
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    state.stack.push(newState);
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  }
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  function popStateStack(state) {
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    state.stack.pop();
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    var reinstateTokenize = state.stack.length && state.stack[state.stack.length-1].tokenize;
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    state.tokenize = reinstateTokenize || tokenBase;
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  }
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  // the interface for the mode API
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  return {
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    startState: function() {
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      return {
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        tokenize: tokenBase,
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        cc: [],
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        stack: []
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      };
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    },
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    token: function(stream, state) {
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      if (stream.eatSpace()) return null;
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      var style = state.tokenize(stream, state);
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      return style;
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    },
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    blockCommentStart: "(:",
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    blockCommentEnd: ":)"
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  };
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});
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CodeMirror.defineMIME("application/xquery", "xquery");
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});
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