mirror of
https://github.com/renbaoshuo/S2OJ.git
synced 2024-11-25 14:58:41 +00:00
96d4a3ecf7
Due to historical reasons, the code is in subfolder "1". With SVN removal, we place the code back and remove the annoying "1" folder.
369 lines
9.9 KiB
JavaScript
369 lines
9.9 KiB
JavaScript
// CodeMirror, copyright (c) by Marijn Haverbeke and others
|
|
// Distributed under an MIT license: http://codemirror.net/LICENSE
|
|
|
|
/**
|
|
* Link to the project's GitHub page:
|
|
* https://github.com/pickhardt/coffeescript-codemirror-mode
|
|
*/
|
|
(function(mod) {
|
|
if (typeof exports == "object" && typeof module == "object") // CommonJS
|
|
mod(require("../../lib/codemirror"));
|
|
else if (typeof define == "function" && define.amd) // AMD
|
|
define(["../../lib/codemirror"], mod);
|
|
else // Plain browser env
|
|
mod(CodeMirror);
|
|
})(function(CodeMirror) {
|
|
"use strict";
|
|
|
|
CodeMirror.defineMode("coffeescript", function(conf) {
|
|
var ERRORCLASS = "error";
|
|
|
|
function wordRegexp(words) {
|
|
return new RegExp("^((" + words.join(")|(") + "))\\b");
|
|
}
|
|
|
|
var operators = /^(?:->|=>|\+[+=]?|-[\-=]?|\*[\*=]?|\/[\/=]?|[=!]=|<[><]?=?|>>?=?|%=?|&=?|\|=?|\^=?|\~|!|\?)/;
|
|
var delimiters = /^(?:[()\[\]{},:`=;]|\.\.?\.?)/;
|
|
var identifiers = /^[_A-Za-z$][_A-Za-z$0-9]*/;
|
|
var properties = /^(@|this\.)[_A-Za-z$][_A-Za-z$0-9]*/;
|
|
|
|
var wordOperators = wordRegexp(["and", "or", "not",
|
|
"is", "isnt", "in",
|
|
"instanceof", "typeof"]);
|
|
var indentKeywords = ["for", "while", "loop", "if", "unless", "else",
|
|
"switch", "try", "catch", "finally", "class"];
|
|
var commonKeywords = ["break", "by", "continue", "debugger", "delete",
|
|
"do", "in", "of", "new", "return", "then",
|
|
"this", "throw", "when", "until"];
|
|
|
|
var keywords = wordRegexp(indentKeywords.concat(commonKeywords));
|
|
|
|
indentKeywords = wordRegexp(indentKeywords);
|
|
|
|
|
|
var stringPrefixes = /^('{3}|\"{3}|['\"])/;
|
|
var regexPrefixes = /^(\/{3}|\/)/;
|
|
var commonConstants = ["Infinity", "NaN", "undefined", "null", "true", "false", "on", "off", "yes", "no"];
|
|
var constants = wordRegexp(commonConstants);
|
|
|
|
// Tokenizers
|
|
function tokenBase(stream, state) {
|
|
// Handle scope changes
|
|
if (stream.sol()) {
|
|
if (state.scope.align === null) state.scope.align = false;
|
|
var scopeOffset = state.scope.offset;
|
|
if (stream.eatSpace()) {
|
|
var lineOffset = stream.indentation();
|
|
if (lineOffset > scopeOffset && state.scope.type == "coffee") {
|
|
return "indent";
|
|
} else if (lineOffset < scopeOffset) {
|
|
return "dedent";
|
|
}
|
|
return null;
|
|
} else {
|
|
if (scopeOffset > 0) {
|
|
dedent(stream, state);
|
|
}
|
|
}
|
|
}
|
|
if (stream.eatSpace()) {
|
|
return null;
|
|
}
|
|
|
|
var ch = stream.peek();
|
|
|
|
// Handle docco title comment (single line)
|
|
if (stream.match("####")) {
|
|
stream.skipToEnd();
|
|
return "comment";
|
|
}
|
|
|
|
// Handle multi line comments
|
|
if (stream.match("###")) {
|
|
state.tokenize = longComment;
|
|
return state.tokenize(stream, state);
|
|
}
|
|
|
|
// Single line comment
|
|
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) {
|
|
// prevent from getting extra . on 1..
|
|
if (stream.peek() == "."){
|
|
stream.backUp(1);
|
|
}
|
|
return "number";
|
|
}
|
|
// Integers
|
|
var intLiteral = false;
|
|
// Hex
|
|
if (stream.match(/^-?0x[0-9a-f]+/i)) {
|
|
intLiteral = true;
|
|
}
|
|
// Decimal
|
|
if (stream.match(/^-?[1-9]\d*(e[\+\-]?\d+)?/)) {
|
|
intLiteral = true;
|
|
}
|
|
// Zero by itself with no other piece of number.
|
|
if (stream.match(/^-?0(?![\dx])/i)) {
|
|
intLiteral = true;
|
|
}
|
|
if (intLiteral) {
|
|
return "number";
|
|
}
|
|
}
|
|
|
|
// Handle strings
|
|
if (stream.match(stringPrefixes)) {
|
|
state.tokenize = tokenFactory(stream.current(), false, "string");
|
|
return state.tokenize(stream, state);
|
|
}
|
|
// Handle regex literals
|
|
if (stream.match(regexPrefixes)) {
|
|
if (stream.current() != "/" || stream.match(/^.*\//, false)) { // prevent highlight of division
|
|
state.tokenize = tokenFactory(stream.current(), true, "string-2");
|
|
return state.tokenize(stream, state);
|
|
} else {
|
|
stream.backUp(1);
|
|
}
|
|
}
|
|
|
|
// Handle operators and delimiters
|
|
if (stream.match(operators) || stream.match(wordOperators)) {
|
|
return "operator";
|
|
}
|
|
if (stream.match(delimiters)) {
|
|
return "punctuation";
|
|
}
|
|
|
|
if (stream.match(constants)) {
|
|
return "atom";
|
|
}
|
|
|
|
if (stream.match(keywords)) {
|
|
return "keyword";
|
|
}
|
|
|
|
if (stream.match(identifiers)) {
|
|
return "variable";
|
|
}
|
|
|
|
if (stream.match(properties)) {
|
|
return "property";
|
|
}
|
|
|
|
// Handle non-detected items
|
|
stream.next();
|
|
return ERRORCLASS;
|
|
}
|
|
|
|
function tokenFactory(delimiter, singleline, outclass) {
|
|
return function(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 (conf.mode.singleLineStringErrors) {
|
|
outclass = ERRORCLASS;
|
|
} else {
|
|
state.tokenize = tokenBase;
|
|
}
|
|
}
|
|
return outclass;
|
|
};
|
|
}
|
|
|
|
function longComment(stream, state) {
|
|
while (!stream.eol()) {
|
|
stream.eatWhile(/[^#]/);
|
|
if (stream.match("###")) {
|
|
state.tokenize = tokenBase;
|
|
break;
|
|
}
|
|
stream.eatWhile("#");
|
|
}
|
|
return "comment";
|
|
}
|
|
|
|
function indent(stream, state, type) {
|
|
type = type || "coffee";
|
|
var offset = 0, align = false, alignOffset = null;
|
|
for (var scope = state.scope; scope; scope = scope.prev) {
|
|
if (scope.type === "coffee") {
|
|
offset = scope.offset + conf.indentUnit;
|
|
break;
|
|
}
|
|
}
|
|
if (type !== "coffee") {
|
|
align = null;
|
|
alignOffset = stream.column() + stream.current().length;
|
|
} else if (state.scope.align) {
|
|
state.scope.align = false;
|
|
}
|
|
state.scope = {
|
|
offset: offset,
|
|
type: type,
|
|
prev: state.scope,
|
|
align: align,
|
|
alignOffset: alignOffset
|
|
};
|
|
}
|
|
|
|
function dedent(stream, state) {
|
|
if (!state.scope.prev) return;
|
|
if (state.scope.type === "coffee") {
|
|
var _indent = stream.indentation();
|
|
var matched = false;
|
|
for (var scope = state.scope; scope; scope = scope.prev) {
|
|
if (_indent === scope.offset) {
|
|
matched = true;
|
|
break;
|
|
}
|
|
}
|
|
if (!matched) {
|
|
return true;
|
|
}
|
|
while (state.scope.prev && state.scope.offset !== _indent) {
|
|
state.scope = state.scope.prev;
|
|
}
|
|
return false;
|
|
} else {
|
|
state.scope = state.scope.prev;
|
|
return false;
|
|
}
|
|
}
|
|
|
|
function tokenLexer(stream, state) {
|
|
var style = state.tokenize(stream, state);
|
|
var current = stream.current();
|
|
|
|
// Handle "." connected identifiers
|
|
if (current === ".") {
|
|
style = state.tokenize(stream, state);
|
|
current = stream.current();
|
|
if (/^\.[\w$]+$/.test(current)) {
|
|
return "variable";
|
|
} else {
|
|
return ERRORCLASS;
|
|
}
|
|
}
|
|
|
|
// Handle scope changes.
|
|
if (current === "return") {
|
|
state.dedent += 1;
|
|
}
|
|
if (((current === "->" || current === "=>") &&
|
|
!state.lambda &&
|
|
!stream.peek())
|
|
|| style === "indent") {
|
|
indent(stream, state);
|
|
}
|
|
var delimiter_index = "[({".indexOf(current);
|
|
if (delimiter_index !== -1) {
|
|
indent(stream, state, "])}".slice(delimiter_index, delimiter_index+1));
|
|
}
|
|
if (indentKeywords.exec(current)){
|
|
indent(stream, state);
|
|
}
|
|
if (current == "then"){
|
|
dedent(stream, state);
|
|
}
|
|
|
|
|
|
if (style === "dedent") {
|
|
if (dedent(stream, state)) {
|
|
return ERRORCLASS;
|
|
}
|
|
}
|
|
delimiter_index = "])}".indexOf(current);
|
|
if (delimiter_index !== -1) {
|
|
while (state.scope.type == "coffee" && state.scope.prev)
|
|
state.scope = state.scope.prev;
|
|
if (state.scope.type == current)
|
|
state.scope = state.scope.prev;
|
|
}
|
|
if (state.dedent > 0 && stream.eol() && state.scope.type == "coffee") {
|
|
if (state.scope.prev) state.scope = state.scope.prev;
|
|
state.dedent -= 1;
|
|
}
|
|
|
|
return style;
|
|
}
|
|
|
|
var external = {
|
|
startState: function(basecolumn) {
|
|
return {
|
|
tokenize: tokenBase,
|
|
scope: {offset:basecolumn || 0, type:"coffee", prev: null, align: false},
|
|
lastToken: null,
|
|
lambda: false,
|
|
dedent: 0
|
|
};
|
|
},
|
|
|
|
token: function(stream, state) {
|
|
var fillAlign = state.scope.align === null && state.scope;
|
|
if (fillAlign && stream.sol()) fillAlign.align = false;
|
|
|
|
var style = tokenLexer(stream, state);
|
|
if (fillAlign && style && style != "comment") fillAlign.align = true;
|
|
|
|
state.lastToken = {style:style, content: stream.current()};
|
|
|
|
if (stream.eol() && stream.lambda) {
|
|
state.lambda = false;
|
|
}
|
|
|
|
return style;
|
|
},
|
|
|
|
indent: function(state, text) {
|
|
if (state.tokenize != tokenBase) return 0;
|
|
var scope = state.scope;
|
|
var closer = text && "])}".indexOf(text.charAt(0)) > -1;
|
|
if (closer) while (scope.type == "coffee" && scope.prev) scope = scope.prev;
|
|
var closes = closer && scope.type === text.charAt(0);
|
|
if (scope.align)
|
|
return scope.alignOffset - (closes ? 1 : 0);
|
|
else
|
|
return (closes ? scope.prev : scope).offset;
|
|
},
|
|
|
|
lineComment: "#",
|
|
fold: "indent"
|
|
};
|
|
return external;
|
|
});
|
|
|
|
CodeMirror.defineMIME("text/x-coffeescript", "coffeescript");
|
|
|
|
});
|