S2OJ/web/js/codemirror/mode/vb/vb.js
Masco Skray 96d4a3ecf7 style(judger,web): move code out from subfolder "1"
Due to historical reasons, the code is in subfolder "1".
With SVN removal, we place the code back and remove the annoying "1" folder.
2019-06-14 23:34:41 +08:00

275 lines
8.3 KiB
JavaScript

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
(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("vb", function(conf, parserConf) {
var ERRORCLASS = 'error';
function wordRegexp(words) {
return new RegExp("^((" + words.join(")|(") + "))\\b", "i");
}
var singleOperators = new RegExp("^[\\+\\-\\*/%&\\\\|\\^~<>!]");
var singleDelimiters = new RegExp('^[\\(\\)\\[\\]\\{\\}@,:`=;\\.]');
var doubleOperators = new RegExp("^((==)|(<>)|(<=)|(>=)|(<>)|(<<)|(>>)|(//)|(\\*\\*))");
var doubleDelimiters = new RegExp("^((\\+=)|(\\-=)|(\\*=)|(%=)|(/=)|(&=)|(\\|=)|(\\^=))");
var tripleDelimiters = new RegExp("^((//=)|(>>=)|(<<=)|(\\*\\*=))");
var identifiers = new RegExp("^[_A-Za-z][_A-Za-z0-9]*");
var openingKeywords = ['class','module', 'sub','enum','select','while','if','function', 'get','set','property', 'try'];
var middleKeywords = ['else','elseif','case', 'catch'];
var endKeywords = ['next','loop'];
var wordOperators = wordRegexp(['and', 'or', 'not', 'xor', 'in']);
var commonkeywords = ['as', 'dim', 'break', 'continue','optional', 'then', 'until',
'goto', 'byval','byref','new','handles','property', 'return',
'const','private', 'protected', 'friend', 'public', 'shared', 'static', 'true','false'];
var commontypes = ['integer','string','double','decimal','boolean','short','char', 'float','single'];
var keywords = wordRegexp(commonkeywords);
var types = wordRegexp(commontypes);
var stringPrefixes = '"';
var opening = wordRegexp(openingKeywords);
var middle = wordRegexp(middleKeywords);
var closing = wordRegexp(endKeywords);
var doubleClosing = wordRegexp(['end']);
var doOpening = wordRegexp(['do']);
var indentInfo = null;
function indent(_stream, state) {
state.currentIndent++;
}
function dedent(_stream, state) {
state.currentIndent--;
}
// tokenizers
function tokenBase(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(/^((&H)|(&O))?[0-9\.a-f]/i, false)) {
var floatLiteral = false;
// Floats
if (stream.match(/^\d*\.\d+F?/i)) { floatLiteral = true; }
else if (stream.match(/^\d+\.\d*F?/)) { floatLiteral = true; }
else if (stream.match(/^\.\d+F?/)) { floatLiteral = true; }
if (floatLiteral) {
// Float literals may be "imaginary"
stream.eat(/J/i);
return 'number';
}
// Integers
var intLiteral = false;
// Hex
if (stream.match(/^&H[0-9a-f]+/i)) { intLiteral = true; }
// Octal
else if (stream.match(/^&O[0-7]+/i)) { intLiteral = true; }
// Decimal
else if (stream.match(/^[1-9]\d*F?/)) {
// 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.
else 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(doOpening)) {
indent(stream,state);
state.doInCurrentLine = true;
return 'keyword';
}
if (stream.match(opening)) {
if (! state.doInCurrentLine)
indent(stream,state);
else
state.doInCurrentLine = false;
return 'keyword';
}
if (stream.match(middle)) {
return 'keyword';
}
if (stream.match(doubleClosing)) {
dedent(stream,state);
dedent(stream,state);
return 'keyword';
}
if (stream.match(closing)) {
dedent(stream,state);
return 'keyword';
}
if (stream.match(types)) {
return 'keyword';
}
if (stream.match(keywords)) {
return 'keyword';
}
if (stream.match(identifiers)) {
return 'variable';
}
// Handle non-detected items
stream.next();
return ERRORCLASS;
}
function tokenStringFactory(delimiter) {
var singleline = delimiter.length == 1;
var OUTCLASS = 'string';
return function(stream, state) {
while (!stream.eol()) {
stream.eatWhile(/[^'"]/);
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;
};
}
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 (style === 'variable') {
return 'variable';
} else {
return ERRORCLASS;
}
}
var delimiter_index = '[({'.indexOf(current);
if (delimiter_index !== -1) {
indent(stream, state );
}
if (indentInfo === 'dedent') {
if (dedent(stream, state)) {
return ERRORCLASS;
}
}
delimiter_index = '])}'.indexOf(current);
if (delimiter_index !== -1) {
if (dedent(stream, state)) {
return ERRORCLASS;
}
}
return style;
}
var external = {
electricChars:"dDpPtTfFeE ",
startState: function() {
return {
tokenize: tokenBase,
lastToken: null,
currentIndent: 0,
nextLineIndent: 0,
doInCurrentLine: false
};
},
token: function(stream, state) {
if (stream.sol()) {
state.currentIndent += state.nextLineIndent;
state.nextLineIndent = 0;
state.doInCurrentLine = 0;
}
var style = tokenLexer(stream, state);
state.lastToken = {style:style, content: stream.current()};
return style;
},
indent: function(state, textAfter) {
var trueText = textAfter.replace(/^\s+|\s+$/g, '') ;
if (trueText.match(closing) || trueText.match(doubleClosing) || trueText.match(middle)) return conf.indentUnit*(state.currentIndent-1);
if(state.currentIndent < 0) return 0;
return state.currentIndent * conf.indentUnit;
}
};
return external;
});
CodeMirror.defineMIME("text/x-vb", "vb");
});