codemirror-ipython.js
345 lines
| 12.2 KiB
| application/javascript
|
JavascriptLexer
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r10416 | // This is an ipython mode for CodeMirror. We started from the CM Python mode and renamed | ||
// it to ipython. We have then marked all other changes we have made to the file. | ||||
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r10415 | CodeMirror.defineMode("ipython", function(conf, parserConf) { | ||
var ERRORCLASS = 'error'; | ||||
function wordRegexp(words) { | ||||
return new RegExp("^((" + words.join(")|(") + "))\\b"); | ||||
} | ||||
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r10416 | // IPython-specific changes: add '?' as recognized character using \\? | ||
var singleOperators = parserConf.singleOperators || new RegExp("^[\\+\\-\\*/%&|\\^~<>!\\?]"); | ||||
// End IPython changes. | ||||
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r10415 | var singleDelimiters = parserConf.singleDelimiters || new RegExp('^[\\(\\)\\[\\]\\{\\}@,:`=;\\.]'); | ||
var doubleOperators = parserConf.doubleOperators || new RegExp("^((==)|(!=)|(<=)|(>=)|(<>)|(<<)|(>>)|(//)|(\\*\\*))"); | ||||
var doubleDelimiters = parserConf.doubleDelimiters || new RegExp("^((\\+=)|(\\-=)|(\\*=)|(%=)|(/=)|(&=)|(\\|=)|(\\^=))"); | ||||
var tripleDelimiters = parserConf.tripleDelimiters || new RegExp("^((//=)|(>>=)|(<<=)|(\\*\\*=))"); | ||||
var identifiers = parserConf.identifiers|| new RegExp("^[_A-Za-z][_A-Za-z0-9]*"); | ||||
var wordOperators = wordRegexp(['and', 'or', 'not', 'is', 'in']); | ||||
var commonkeywords = ['as', 'assert', 'break', 'class', 'continue', | ||||
'def', 'del', 'elif', 'else', 'except', 'finally', | ||||
'for', 'from', 'global', 'if', 'import', | ||||
'lambda', 'pass', 'raise', 'return', | ||||
'try', 'while', 'with', 'yield']; | ||||
var commonBuiltins = ['abs', 'all', 'any', 'bin', 'bool', 'bytearray', 'callable', 'chr', | ||||
'classmethod', 'compile', 'complex', 'delattr', 'dict', 'dir', 'divmod', | ||||
'enumerate', 'eval', 'filter', 'float', 'format', 'frozenset', | ||||
'getattr', 'globals', 'hasattr', 'hash', 'help', 'hex', 'id', | ||||
'input', 'int', 'isinstance', 'issubclass', 'iter', 'len', | ||||
'list', 'locals', 'map', 'max', 'memoryview', 'min', 'next', | ||||
'object', 'oct', 'open', 'ord', 'pow', 'property', 'range', | ||||
'repr', 'reversed', 'round', 'set', 'setattr', 'slice', | ||||
'sorted', 'staticmethod', 'str', 'sum', 'super', 'tuple', | ||||
'type', 'vars', 'zip', '__import__', 'NotImplemented', | ||||
'Ellipsis', '__debug__']; | ||||
var py2 = {'builtins': ['apply', 'basestring', 'buffer', 'cmp', 'coerce', 'execfile', | ||||
'file', 'intern', 'long', 'raw_input', 'reduce', 'reload', | ||||
'unichr', 'unicode', 'xrange', 'False', 'True', 'None'], | ||||
'keywords': ['exec', 'print']}; | ||||
var py3 = {'builtins': ['ascii', 'bytes', 'exec', 'print'], | ||||
'keywords': ['nonlocal', 'False', 'True', 'None']}; | ||||
if (!!parserConf.version && parseInt(parserConf.version, 10) === 3) { | ||||
commonkeywords = commonkeywords.concat(py3.keywords); | ||||
commonBuiltins = commonBuiltins.concat(py3.builtins); | ||||
var stringPrefixes = new RegExp("^(([rb]|(br))?('{3}|\"{3}|['\"]))", "i"); | ||||
} else { | ||||
commonkeywords = commonkeywords.concat(py2.keywords); | ||||
commonBuiltins = commonBuiltins.concat(py2.builtins); | ||||
var stringPrefixes = new RegExp("^(([rub]|(ur)|(br))?('{3}|\"{3}|['\"]))", "i"); | ||||
} | ||||
var keywords = wordRegexp(commonkeywords); | ||||
var builtins = wordRegexp(commonBuiltins); | ||||
var indentInfo = null; | ||||
// tokenizers | ||||
function tokenBase(stream, state) { | ||||
// Handle scope changes | ||||
if (stream.sol()) { | ||||
var scopeOffset = state.scopes[0].offset; | ||||
if (stream.eatSpace()) { | ||||
var lineOffset = stream.indentation(); | ||||
if (lineOffset > scopeOffset) { | ||||
indentInfo = 'indent'; | ||||
} else if (lineOffset < scopeOffset) { | ||||
indentInfo = 'dedent'; | ||||
} | ||||
return null; | ||||
} else { | ||||
if (scopeOffset > 0) { | ||||
dedent(stream, state); | ||||
} | ||||
} | ||||
} | ||||
if (stream.eatSpace()) { | ||||
return null; | ||||
} | ||||
var ch = stream.peek(); | ||||
// Handle Comments | ||||
if (ch === '#') { | ||||
stream.skipToEnd(); | ||||
return 'comment'; | ||||
} | ||||
// Handle Number Literals | ||||
if (stream.match(/^[0-9\.]/, false)) { | ||||
var floatLiteral = false; | ||||
// Floats | ||||
if (stream.match(/^\d*\.\d+(e[\+\-]?\d+)?/i)) { floatLiteral = true; } | ||||
if (stream.match(/^\d+\.\d*/)) { floatLiteral = true; } | ||||
if (stream.match(/^\.\d+/)) { floatLiteral = true; } | ||||
if (floatLiteral) { | ||||
// Float literals may be "imaginary" | ||||
stream.eat(/J/i); | ||||
return 'number'; | ||||
} | ||||
// Integers | ||||
var intLiteral = false; | ||||
// Hex | ||||
if (stream.match(/^0x[0-9a-f]+/i)) { intLiteral = true; } | ||||
// Binary | ||||
if (stream.match(/^0b[01]+/i)) { intLiteral = true; } | ||||
// Octal | ||||
if (stream.match(/^0o[0-7]+/i)) { intLiteral = true; } | ||||
// Decimal | ||||
if (stream.match(/^[1-9]\d*(e[\+\-]?\d+)?/)) { | ||||
// Decimal literals may be "imaginary" | ||||
stream.eat(/J/i); | ||||
// TODO - Can you have imaginary longs? | ||||
intLiteral = true; | ||||
} | ||||
// Zero by itself with no other piece of number. | ||||
if (stream.match(/^0(?![\dx])/i)) { intLiteral = true; } | ||||
if (intLiteral) { | ||||
// Integer literals may be "long" | ||||
stream.eat(/L/i); | ||||
return 'number'; | ||||
} | ||||
} | ||||
// Handle Strings | ||||
if (stream.match(stringPrefixes)) { | ||||
state.tokenize = tokenStringFactory(stream.current()); | ||||
return state.tokenize(stream, state); | ||||
} | ||||
// Handle operators and Delimiters | ||||
if (stream.match(tripleDelimiters) || stream.match(doubleDelimiters)) { | ||||
return null; | ||||
} | ||||
if (stream.match(doubleOperators) | ||||
|| stream.match(singleOperators) | ||||
|| stream.match(wordOperators)) { | ||||
return 'operator'; | ||||
} | ||||
if (stream.match(singleDelimiters)) { | ||||
return null; | ||||
} | ||||
if (stream.match(keywords)) { | ||||
return 'keyword'; | ||||
} | ||||
if (stream.match(builtins)) { | ||||
return 'builtin'; | ||||
} | ||||
if (stream.match(identifiers)) { | ||||
return 'variable'; | ||||
} | ||||
// Handle non-detected items | ||||
stream.next(); | ||||
return ERRORCLASS; | ||||
} | ||||
function tokenStringFactory(delimiter) { | ||||
while ('rub'.indexOf(delimiter.charAt(0).toLowerCase()) >= 0) { | ||||
delimiter = delimiter.substr(1); | ||||
} | ||||
var singleline = delimiter.length == 1; | ||||
var OUTCLASS = 'string'; | ||||
function tokenString(stream, state) { | ||||
while (!stream.eol()) { | ||||
stream.eatWhile(/[^'"\\]/); | ||||
if (stream.eat('\\')) { | ||||
stream.next(); | ||||
if (singleline && stream.eol()) { | ||||
return OUTCLASS; | ||||
} | ||||
} else if (stream.match(delimiter)) { | ||||
state.tokenize = tokenBase; | ||||
return OUTCLASS; | ||||
} else { | ||||
stream.eat(/['"]/); | ||||
} | ||||
} | ||||
if (singleline) { | ||||
if (parserConf.singleLineStringErrors) { | ||||
return ERRORCLASS; | ||||
} else { | ||||
state.tokenize = tokenBase; | ||||
} | ||||
} | ||||
return OUTCLASS; | ||||
} | ||||
tokenString.isString = true; | ||||
return tokenString; | ||||
} | ||||
function indent(stream, state, type) { | ||||
type = type || 'py'; | ||||
var indentUnit = 0; | ||||
if (type === 'py') { | ||||
if (state.scopes[0].type !== 'py') { | ||||
state.scopes[0].offset = stream.indentation(); | ||||
return; | ||||
} | ||||
for (var i = 0; i < state.scopes.length; ++i) { | ||||
if (state.scopes[i].type === 'py') { | ||||
indentUnit = state.scopes[i].offset + conf.indentUnit; | ||||
break; | ||||
} | ||||
} | ||||
} else { | ||||
indentUnit = stream.column() + stream.current().length; | ||||
} | ||||
state.scopes.unshift({ | ||||
offset: indentUnit, | ||||
type: type | ||||
}); | ||||
} | ||||
function dedent(stream, state, type) { | ||||
type = type || 'py'; | ||||
if (state.scopes.length == 1) return; | ||||
if (state.scopes[0].type === 'py') { | ||||
var _indent = stream.indentation(); | ||||
var _indent_index = -1; | ||||
for (var i = 0; i < state.scopes.length; ++i) { | ||||
if (_indent === state.scopes[i].offset) { | ||||
_indent_index = i; | ||||
break; | ||||
} | ||||
} | ||||
if (_indent_index === -1) { | ||||
return true; | ||||
} | ||||
while (state.scopes[0].offset !== _indent) { | ||||
state.scopes.shift(); | ||||
} | ||||
return false; | ||||
} else { | ||||
if (type === 'py') { | ||||
state.scopes[0].offset = stream.indentation(); | ||||
return false; | ||||
} else { | ||||
if (state.scopes[0].type != type) { | ||||
return true; | ||||
} | ||||
state.scopes.shift(); | ||||
return false; | ||||
} | ||||
} | ||||
} | ||||
function tokenLexer(stream, state) { | ||||
indentInfo = null; | ||||
var style = state.tokenize(stream, state); | ||||
var current = stream.current(); | ||||
// Handle '.' connected identifiers | ||||
if (current === '.') { | ||||
style = stream.match(identifiers, false) ? null : ERRORCLASS; | ||||
if (style === null && state.lastToken === 'meta') { | ||||
// Apply 'meta' style to '.' connected identifiers when | ||||
// appropriate. | ||||
style = 'meta'; | ||||
} | ||||
return style; | ||||
} | ||||
// Handle decorators | ||||
if (current === '@') { | ||||
return stream.match(identifiers, false) ? 'meta' : ERRORCLASS; | ||||
} | ||||
if ((style === 'variable' || style === 'builtin') | ||||
&& state.lastToken === 'meta') { | ||||
style = 'meta'; | ||||
} | ||||
// Handle scope changes. | ||||
if (current === 'pass' || current === 'return') { | ||||
state.dedent += 1; | ||||
} | ||||
if (current === 'lambda') state.lambda = true; | ||||
if ((current === ':' && !state.lambda && state.scopes[0].type == 'py') | ||||
|| indentInfo === 'indent') { | ||||
indent(stream, state); | ||||
} | ||||
var delimiter_index = '[({'.indexOf(current); | ||||
if (delimiter_index !== -1) { | ||||
indent(stream, state, '])}'.slice(delimiter_index, delimiter_index+1)); | ||||
} | ||||
if (indentInfo === 'dedent') { | ||||
if (dedent(stream, state)) { | ||||
return ERRORCLASS; | ||||
} | ||||
} | ||||
delimiter_index = '])}'.indexOf(current); | ||||
if (delimiter_index !== -1) { | ||||
if (dedent(stream, state, current)) { | ||||
return ERRORCLASS; | ||||
} | ||||
} | ||||
if (state.dedent > 0 && stream.eol() && state.scopes[0].type == 'py') { | ||||
if (state.scopes.length > 1) state.scopes.shift(); | ||||
state.dedent -= 1; | ||||
} | ||||
return style; | ||||
} | ||||
var external = { | ||||
startState: function(basecolumn) { | ||||
return { | ||||
tokenize: tokenBase, | ||||
scopes: [{offset:basecolumn || 0, type:'py'}], | ||||
lastToken: null, | ||||
lambda: false, | ||||
dedent: 0 | ||||
}; | ||||
}, | ||||
token: function(stream, state) { | ||||
var style = tokenLexer(stream, state); | ||||
state.lastToken = style; | ||||
if (stream.eol() && stream.lambda) { | ||||
state.lambda = false; | ||||
} | ||||
return style; | ||||
}, | ||||
indent: function(state) { | ||||
if (state.tokenize != tokenBase) { | ||||
return state.tokenize.isString ? CodeMirror.Pass : 0; | ||||
} | ||||
return state.scopes[0].offset; | ||||
} | ||||
}; | ||||
return external; | ||||
}); | ||||
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r10416 | CodeMirror.defineMIME("text/x-ipython", "ipython"); | ||