339 lines
12 KiB
JavaScript
339 lines
12 KiB
JavaScript
CodeMirror.defineMode("python", function(conf, parserConf) {
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var ERRORCLASS = 'error';
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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 singleOperators = new RegExp("^[\\+\\-\\*/%&|\\^~<>!]");
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var singleDelimiters = new RegExp('^[\\(\\)\\[\\]\\{\\}@,:`=;\\.]');
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var doubleOperators = new RegExp("^((==)|(!=)|(<=)|(>=)|(<>)|(<<)|(>>)|(//)|(\\*\\*))");
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var doubleDelimiters = new RegExp("^((\\+=)|(\\-=)|(\\*=)|(%=)|(/=)|(&=)|(\\|=)|(\\^=))");
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var tripleDelimiters = new RegExp("^((//=)|(>>=)|(<<=)|(\\*\\*=))");
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var identifiers = new RegExp("^[_A-Za-z][_A-Za-z0-9]*");
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var wordOperators = wordRegexp(['and', 'or', 'not', 'is', 'in']);
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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'];
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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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var py2 = {'builtins': ['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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'keywords': ['exec', 'print']};
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var py3 = {'builtins': ['ascii', 'bytes', 'exec', 'print'],
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'keywords': ['nonlocal', 'False', 'True', 'None']};
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if (!!parserConf.version && parseInt(parserConf.version, 10) === 3) {
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commonkeywords = commonkeywords.concat(py3.keywords);
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commonBuiltins = commonBuiltins.concat(py3.builtins);
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var stringPrefixes = new RegExp("^(([rb]|(br))?('{3}|\"{3}|['\"]))", "i");
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} else {
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commonkeywords = commonkeywords.concat(py2.keywords);
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commonBuiltins = commonBuiltins.concat(py2.builtins);
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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(commonkeywords);
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var builtins = wordRegexp(commonBuiltins);
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var indentInfo = null;
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// tokenizers
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function tokenBase(stream, state) {
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// Handle scope changes
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if (stream.sol()) {
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var scopeOffset = state.scopes[0].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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indentInfo = 'indent';
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} else if (lineOffset < scopeOffset) {
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indentInfo = 'dedent';
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}
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return null;
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} else {
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if (scopeOffset > 0) {
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dedent(stream, state);
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}
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}
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}
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if (stream.eatSpace()) {
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return null;
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}
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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 null;
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}
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if (stream.match(doubleOperators)
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|| stream.match(singleOperators)
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|| stream.match(wordOperators)) {
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return 'operator';
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}
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if (stream.match(singleDelimiters)) {
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return null;
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}
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if (stream.match(keywords)) {
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return 'keyword';
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}
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if (stream.match(builtins)) {
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return 'builtin';
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}
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if (stream.match(identifiers)) {
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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 ('rub'.indexOf(delimiter.charAt(0).toLowerCase()) >= 0) {
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delimiter = delimiter.substr(1);
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}
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var singleline = delimiter.length == 1;
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var OUTCLASS = 'string';
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return 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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}
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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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}
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return OUTCLASS;
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};
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}
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function indent(stream, state, type) {
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type = type || 'py';
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var indentUnit = 0;
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if (type === 'py') {
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if (state.scopes[0].type !== 'py') {
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state.scopes[0].offset = stream.indentation();
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return;
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}
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for (var i = 0; i < state.scopes.length; ++i) {
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if (state.scopes[i].type === 'py') {
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indentUnit = state.scopes[i].offset + conf.indentUnit;
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break;
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}
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}
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} else {
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indentUnit = stream.column() + stream.current().length;
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}
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state.scopes.unshift({
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offset: indentUnit,
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type: type
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});
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}
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function dedent(stream, state, type) {
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type = type || 'py';
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if (state.scopes.length == 1) return;
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if (state.scopes[0].type === 'py') {
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var _indent = stream.indentation();
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var _indent_index = -1;
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for (var i = 0; i < state.scopes.length; ++i) {
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if (_indent === state.scopes[i].offset) {
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_indent_index = i;
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break;
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}
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}
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if (_indent_index === -1) {
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return true;
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}
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while (state.scopes[0].offset !== _indent) {
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state.scopes.shift();
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}
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return false;
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} else {
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if (type === 'py') {
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state.scopes[0].offset = stream.indentation();
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return false;
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} else {
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if (state.scopes[0].type != type) {
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return true;
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}
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state.scopes.shift();
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return false;
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}
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}
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}
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function tokenLexer(stream, state) {
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indentInfo = null;
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var style = state.tokenize(stream, state);
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var current = stream.current();
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// Handle '.' connected identifiers
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if (current === '.') {
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style = stream.match(identifiers, false) ? null : ERRORCLASS;
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if (style === null && state.lastToken === 'meta') {
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// Apply 'meta' style to '.' connected identifiers when
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// appropriate.
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style = 'meta';
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}
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return style;
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}
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// Handle decorators
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if (current === '@') {
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return stream.match(identifiers, false) ? 'meta' : ERRORCLASS;
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}
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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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}
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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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}
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if (current === 'lambda') state.lambda = true;
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if ((current === ':' && !state.lambda && state.scopes[0].type == 'py')
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|| indentInfo === 'indent') {
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indent(stream, state);
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}
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var delimiter_index = '[({'.indexOf(current);
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if (delimiter_index !== -1) {
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indent(stream, state, '])}'.slice(delimiter_index, delimiter_index+1));
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}
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if (indentInfo === 'dedent') {
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if (dedent(stream, state)) {
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return ERRORCLASS;
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}
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}
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delimiter_index = '])}'.indexOf(current);
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if (delimiter_index !== -1) {
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if (dedent(stream, state, current)) {
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return ERRORCLASS;
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}
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}
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if (state.dedent > 0 && stream.eol() && state.scopes[0].type == 'py') {
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if (state.scopes.length > 1) state.scopes.shift();
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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'}],
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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 style = tokenLexer(stream, state);
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state.lastToken = style;
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if (stream.eol() && stream.lambda) {
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state.lambda = false;
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}
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return 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 0;
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}
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return state.scopes[0].offset;
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}
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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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