// 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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function wordRegexp(words) {

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return new RegExp("^((" + words.join(")|(") + "))\\b");

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}

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var wordOperators = wordRegexp(["and", "or", "not", "is"]);

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var commonKeywords = ["as", "assert", "break", "class", "continue",

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"def", "del", "elif", "else", "except", "finally",

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"for", "from", "global", "if", "import",

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"lambda", "pass", "raise", "return",

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"try", "while", "with", "yield", "in"];

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var commonBuiltins = ["abs", "all", "any", "bin", "bool", "bytearray", "callable", "chr",

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"classmethod", "compile", "complex", "delattr", "dict", "dir", "divmod",

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"enumerate", "eval", "filter", "float", "format", "frozenset",

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"getattr", "globals", "hasattr", "hash", "help", "hex", "id",

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"input", "int", "isinstance", "issubclass", "iter", "len",

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"list", "locals", "map", "max", "memoryview", "min", "next",

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"object", "oct", "open", "ord", "pow", "property", "range",

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"repr", "reversed", "round", "set", "setattr", "slice",

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"sorted", "staticmethod", "str", "sum", "super", "tuple",

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"type", "vars", "zip", "__import__", "NotImplemented",

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"Ellipsis", "__debug__"];

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CodeMirror.registerHelper("hintWords", "python", commonKeywords.concat(commonBuiltins));

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function top(state) {

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return state.scopes[state.scopes.length - 1];

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}

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CodeMirror.defineMode("python", function(conf, parserConf) {

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var ERRORCLASS = "error";

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var singleDelimiters = parserConf.singleDelimiters || /^[\(\)\[\]\{\}@,:`=;\.]/;

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var doubleOperators = parserConf.doubleOperators || /^([!<>]==|<>|<<|>>|\/\/|\*\*)/;

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var doubleDelimiters = parserConf.doubleDelimiters || /^(\+=|\-=|\*=|%=|\/=|&=|\|=|\^=)/;

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var tripleDelimiters = parserConf.tripleDelimiters || /^(\/\/=|>>=|<<=|\*\*=)/;

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var hangingIndent = parserConf.hangingIndent || conf.indentUnit;

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var myKeywords = commonKeywords, myBuiltins = commonBuiltins;

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if (parserConf.extra_keywords != undefined)

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myKeywords = myKeywords.concat(parserConf.extra_keywords);

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if (parserConf.extra_builtins != undefined)

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myBuiltins = myBuiltins.concat(parserConf.extra_builtins);

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var py3 = !(parserConf.version && Number(parserConf.version) < 3)

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if (py3) {

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// since http://legacy.python.org/dev/peps/pep-0465/ @ is also an operator

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var singleOperators = parserConf.singleOperators || /^[\+\-\*\/%&|\^~<>!@]/;

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var identifiers = parserConf.identifiers|| /^[_A-Za-z\u00A1-\uFFFF][_A-Za-z0-9\u00A1-\uFFFF]*/;

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myKeywords = myKeywords.concat(["nonlocal", "False", "True", "None", "async", "await"]);

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myBuiltins = myBuiltins.concat(["ascii", "bytes", "exec", "print"]);

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var stringPrefixes = new RegExp("^(([rbuf]|(br))?('{3}|\"{3}|['\"]))", "i");

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} else {

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var singleOperators = parserConf.singleOperators || /^[\+\-\*\/%&|\^~<>!]/;

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var identifiers = parserConf.identifiers|| /^[_A-Za-z][_A-Za-z0-9]*/;

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myKeywords = myKeywords.concat(["exec", "print"]);

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myBuiltins = myBuiltins.concat(["apply", "basestring", "buffer", "cmp", "coerce", "execfile",

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"file", "intern", "long", "raw_input", "reduce", "reload",

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"unichr", "unicode", "xrange", "False", "True", "None"]);

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var stringPrefixes = new RegExp("^(([rub]|(ur)|(br))?('{3}|\"{3}|['\"]))", "i");

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}

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var keywords = wordRegexp(myKeywords);

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var builtins = wordRegexp(myBuiltins);

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// tokenizers

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function tokenBase(stream, state) {

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if (stream.sol()) state.indent = stream.indentation()

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// Handle scope changes

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if (stream.sol() && top(state).type == "py") {

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var scopeOffset = top(state).offset;

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if (stream.eatSpace()) {

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var lineOffset = stream.indentation();

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if (lineOffset > scopeOffset)

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pushPyScope(state);

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else if (lineOffset < scopeOffset && dedent(stream, state))

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state.errorToken = true;

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return null;

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} else {

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var style = tokenBaseInner(stream, state);

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if (scopeOffset > 0 && dedent(stream, state))

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style += " " + ERRORCLASS;

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return style;

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}

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}

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return tokenBaseInner(stream, state);

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}

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function tokenBaseInner(stream, state) {

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if (stream.eatSpace()) return null;

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var ch = stream.peek();

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// Handle Comments

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if (ch == "#") {

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stream.skipToEnd();

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return "comment";

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}

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// Handle Number Literals

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if (stream.match(/^[0-9\.]/, false)) {

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var floatLiteral = false;

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// Floats

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if (stream.match(/^\d*\.\d+(e[\+\-]?\d+)?/i)) { floatLiteral = true; }

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if (stream.match(/^\d+\.\d*/)) { floatLiteral = true; }

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if (stream.match(/^\.\d+/)) { floatLiteral = true; }

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if (floatLiteral) {

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// Float literals may be "imaginary"

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stream.eat(/J/i);

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return "number";

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}

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// Integers

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var intLiteral = false;

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// Hex

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if (stream.match(/^0x[0-9a-f]+/i)) intLiteral = true;

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// Binary

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if (stream.match(/^0b[01]+/i)) intLiteral = true;

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// Octal

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if (stream.match(/^0o[0-7]+/i)) intLiteral = true;

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// Decimal

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if (stream.match(/^[1-9]\d*(e[\+\-]?\d+)?/)) {

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// Decimal literals may be "imaginary"

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stream.eat(/J/i);

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// TODO - Can you have imaginary longs?

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intLiteral = true;

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}

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// Zero by itself with no other piece of number.

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if (stream.match(/^0(?![\dx])/i)) intLiteral = true;

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if (intLiteral) {

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// Integer literals may be "long"

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stream.eat(/L/i);

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return "number";

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}

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}

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// Handle Strings

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if (stream.match(stringPrefixes)) {

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state.tokenize = tokenStringFactory(stream.current());

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return state.tokenize(stream, state);

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}

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// Handle operators and Delimiters

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if (stream.match(tripleDelimiters) || stream.match(doubleDelimiters))

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return "punctuation";

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if (stream.match(doubleOperators) || stream.match(singleOperators))

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return "operator";

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if (stream.match(singleDelimiters))

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return "punctuation";

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if (state.lastToken == "." && stream.match(identifiers))

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return "property";

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if (stream.match(keywords) || stream.match(wordOperators))

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return "keyword";

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if (stream.match(builtins))

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return "builtin";

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if (stream.match(/^(self|cls)\b/))

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return "variable-2";

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if (stream.match(identifiers)) {

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if (state.lastToken == "def" || state.lastToken == "class")

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return "def";

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return "variable";

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}

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// Handle non-detected items

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stream.next();

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return ERRORCLASS;

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}

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function tokenStringFactory(delimiter) {

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while ("rubf".indexOf(delimiter.charAt(0).toLowerCase()) >= 0)

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delimiter = delimiter.substr(1);

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var singleline = delimiter.length == 1;

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var OUTCLASS = "string";

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function tokenString(stream, state) {

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while (!stream.eol()) {

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stream.eatWhile(/[^'"\\]/);

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if (stream.eat("\\")) {

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stream.next();

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if (singleline && stream.eol())

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return OUTCLASS;

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} else if (stream.match(delimiter)) {

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state.tokenize = tokenBase;

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return OUTCLASS;

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} else {

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stream.eat(/['"]/);

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}

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}

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if (singleline) {

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if (parserConf.singleLineStringErrors)

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return ERRORCLASS;

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else

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state.tokenize = tokenBase;

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}

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return OUTCLASS;

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}

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tokenString.isString = true;

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return tokenString;

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}

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function pushPyScope(state) {

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while (top(state).type != "py") state.scopes.pop()

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state.scopes.push({offset: top(state).offset + conf.indentUnit,

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type: "py",

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align: null})

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}

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function pushBracketScope(stream, state, type) {

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var align = stream.match(/^([\s\[\{\(]|#.*)*$/, false) ? null : stream.column() + 1

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state.scopes.push({offset: state.indent + hangingIndent,

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type: type,

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align: align})

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}

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function dedent(stream, state) {

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var indented = stream.indentation();

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while (state.scopes.length > 1 && top(state).offset > indented) {

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if (top(state).type != "py") return true;

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state.scopes.pop();

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}

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return top(state).offset != indented;

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}

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function tokenLexer(stream, state) {

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if (stream.sol()) state.beginningOfLine = true;

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var style = state.tokenize(stream, state);

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var current = stream.current();

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// Handle decorators

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if (state.beginningOfLine && current == "@")

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return stream.match(identifiers, false) ? "meta" : py3 ? "operator" : ERRORCLASS;

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if (/\S/.test(current)) state.beginningOfLine = false;

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if ((style == "variable" || style == "builtin")

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&& state.lastToken == "meta")

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style = "meta";

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// Handle scope changes.

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if (current == "pass" || current == "return")

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state.dedent += 1;

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if (current == "lambda") state.lambda = true;

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if (current == ":" && !state.lambda && top(state).type == "py")

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pushPyScope(state);

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var delimiter_index = current.length == 1 ? "[({".indexOf(current) : -1;

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if (delimiter_index != -1)

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pushBracketScope(stream, state, "])}".slice(delimiter_index, delimiter_index+1));

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delimiter_index = "])}".indexOf(current);

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if (delimiter_index != -1) {

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if (top(state).type == current) state.indent = state.scopes.pop().offset - hangingIndent

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else return ERRORCLASS;

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}

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if (state.dedent > 0 && stream.eol() && top(state).type == "py") {

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if (state.scopes.length > 1) state.scopes.pop();

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state.dedent -= 1;

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}

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return style;

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}

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var external = {

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startState: function(basecolumn) {

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return {

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tokenize: tokenBase,

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scopes: [{offset: basecolumn || 0, type: "py", align: null}],

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indent: basecolumn || 0,

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lastToken: null,

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lambda: false,

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dedent: 0

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};

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},

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token: function(stream, state) {

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var addErr = state.errorToken;

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if (addErr) state.errorToken = false;

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var style = tokenLexer(stream, state);

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if (style && style != "comment")

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state.lastToken = (style == "keyword" || style == "punctuation") ? stream.current() : style;

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if (style == "punctuation") style = null;

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if (stream.eol() && state.lambda)

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state.lambda = false;

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return addErr ? style + " " + ERRORCLASS : style;

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},

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indent: function(state, textAfter) {

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if (state.tokenize != tokenBase)

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return state.tokenize.isString ? CodeMirror.Pass : 0;

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var scope = top(state), closing = scope.type == textAfter.charAt(0)

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if (scope.align != null)

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return scope.align - (closing ? 1 : 0)

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else

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return scope.offset - (closing ? hangingIndent : 0)

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},

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electricInput: /^\s*[\}\]\)]$/,

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closeBrackets: {triples: "'\""},

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lineComment: "#",

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fold: "indent"

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};

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return external;

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});

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

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var words = function(str) { return str.split(" "); };

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CodeMirror.defineMIME("text/x-cython", {

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name: "python",

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extra_keywords: words("by cdef cimport cpdef ctypedef enum except"+

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"extern gil include nogil property public"+

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"readonly struct union DEF IF ELIF ELSE")

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});

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});

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