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// CodeMirror, copyright (c) by Marijn Haverbeke and others

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// Distributed under an MIT license: http://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("solr", function() {

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"use strict";

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var isStringChar = /[^\s\|\!\+\-\*\?\~\^\&\:\[\]\{\}\^\"\\]/;

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var isOperatorChar = /[\|\!\+\-\*\?\~\^\&]/;

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var isOperatorString = /^(OR|AND|NOT|TO)$/i;

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function isNumber(word) {

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return parseFloat(word, 10).toString() === word;

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}

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function tokenString(quote) {

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return function(stream, state) {

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var escaped = false, next;

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while ((next = stream.next()) != null) {

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if (next == quote && !escaped) break;

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escaped = !escaped && next == "\\";

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}

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if (!escaped) state.tokenize = tokenBase;

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return "string";

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};

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}

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function tokenOperator(operator) {

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return function(stream, state) {

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var style = "operator";

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if (operator == "+")

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style += " positive";

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else if (operator == "-")

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style += " negative";

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else if (operator == "|")

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stream.eat(/\|/);

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else if (operator == "&")

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stream.eat(/\&/);

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else if (operator == "^")

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style += " boost";

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state.tokenize = tokenBase;

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return style;

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};

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}

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function tokenWord(ch) {

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return function(stream, state) {

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var word = ch;

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while ((ch = stream.peek()) && ch.match(isStringChar) != null) {

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word += stream.next();

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}

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state.tokenize = tokenBase;

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if (isOperatorString.test(word))

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return "operator";

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else if (isNumber(word))

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return "number";

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else if (stream.peek() == ":")

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return "field";

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else

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return "string";

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};

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}

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function tokenBase(stream, state) {

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var ch = stream.next();

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if (ch == '"')

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state.tokenize = tokenString(ch);

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else if (isOperatorChar.test(ch))

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state.tokenize = tokenOperator(ch);

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else if (isStringChar.test(ch))

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state.tokenize = tokenWord(ch);

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return (state.tokenize != tokenBase) ? state.tokenize(stream, state) : null;

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}

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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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};

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token: function(stream, state) {

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if (stream.eatSpace()) return null;

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return state.tokenize(stream, state);

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}

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};

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});

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CodeMirror.defineMIME("text/x-solr", "solr");

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});

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