笙默考试管理系统-MyExamTest----codemirror（ 68 ）
目录
[一、 笙默考试管理系统-MyExamTest----codemirror](#一、 笙默考试管理系统-MyExamTest----codemirror)
[三、 笙默考试管理系统-MyExamTest----codemirror](#三、 笙默考试管理系统-MyExamTest----codemirror)
[四、 笙默考试管理系统-MyExamTest----codemirror](#四、 笙默考试管理系统-MyExamTest----codemirror)
[五、 笙默考试管理系统-MyExamTest----codemirror](#五、 笙默考试管理系统-MyExamTest----codemirror)
- 笙默考试管理系统-MyExamTest----codemirror
}
// Combinator utils
var cx = {state: null, column: null, marked: null, cc: null};
function pass() {
for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]);
}
function cont() {
pass.apply(null, arguments);
return true;
}
function register(varname) {
var state = cx.state;
if (state.context) {
- 笙默考试管理系统-MyExamTest----codemirror
cx.marked = "def";
for (var v = state.localVars; v; v = v.next)
if (v.name == varname) return;
state.localVars = {name: varname, next: state.localVars};
}
}
// Combinators
var defaultVars = {name: "this", next: {name: "arguments"}};
function pushcontext() {
if (!cx.state.context) cx.state.localVars = defaultVars;
cx.state.context = {prev: cx.state.context, vars: cx.state.localVars};
}
function popcontext() {
cx.state.localVars = cx.state.context.vars;
cx.state.context = cx.state.context.prev;
}
- 笙默考试管理系统-MyExamTest----codemirror
function pushlex(type, info) {
var result = function() {
var state = cx.state;
state.lexical = new JSLexical(state.indented, cx.stream.column(), type, null, state.lexical, info)
};
result.lex = true;
return result;
}
function poplex() {
var state = cx.state;
if (state.lexical.prev) {
if (state.lexical.type == ")")
state.indented = state.lexical.indented;
state.lexical = state.lexical.prev;
}
}
- 笙默考试管理系统-MyExamTest----codemirror
poplex.lex = true;
function expect(wanted) {
return function expecting(type) {
if (type == wanted) return cont();
else if (wanted == ";") return pass();
else return cont(arguments.callee);
};
}
function statement(type) {
if (type == "var") return cont(pushlex("vardef"), vardef1, expect(";"), poplex);
if (type == "keyword a") return cont(pushlex("form"), expression, statement, poplex);
if (type == "keyword b") return cont(pushlex("form"), statement, poplex);
if (type == "{") return cont(pushlex("}"), block, poplex);
if (type == ";") return cont();
if (type == "function") return cont(functiondef);
if (type == "for") return cont(pushlex("form"), expect("("), pushlex(")"), forspec1, expect(")"),
poplex, statement, poplex);
if (type == "variable") return cont(pushlex("stat"), maybelabel);
- 笙默考试管理系统-MyExamTest----codemirror
if (type == "switch") return cont(pushlex("form"), expression, pushlex("}", "switch"), expect("{"),
block, poplex, poplex);
if (type == "case") return cont(expression, expect(":"));
if (type == "default") return cont(expect(":"));
if (type == "catch") return cont(pushlex("form"), pushcontext, expect("("), funarg, expect(")"),
statement, poplex, popcontext);
return pass(pushlex("stat"), expression, expect(";"), poplex);
}
function expression(type) {
if (atomicTypes.hasOwnProperty(type)) return cont(maybeoperator);
if (type == "function") return cont(functiondef);
if (type == "keyword c") return cont(maybeexpression);
if (type == "(") return cont(pushlex(")"), expression, expect(")"), poplex, maybeoperator);
if (type == "operator") return cont(expression);
if (type == "[") return cont(pushlex("]"), commasep(expression, "]"), poplex, maybeoperator);
if (type == "{") return cont(pushlex("}"), commasep(objprop, "}"), poplex, maybeoperator);
return cont();
}
function maybeexpression(type) {
if (type.match(/[;\}\)\],]/)) return pass();
return pass(expression);
}
function maybeoperator(type, value) {
if (type == "operator" && /\+\+|--/.test(value)) return cont(maybeoperator);
if (type == "operator") return cont(expression);
if (type == ";") return;
if (type == "(") return cont(pushlex(")"), commasep(expression, ")"), poplex, maybeoperator);
if (type == ".") return cont(property, maybeoperator);
if (type == "[") return cont(pushlex("]"), expression, expect("]"), poplex, maybeoperator);
}
function maybelabel(type) {
if (type == ":") return cont(poplex, statement);
return pass(maybeoperator, expect(";"), poplex);
}
function property(type) {
if (type == "variable") {cx.marked = "property"; return cont();}
}
function objprop(type) {
if (type == "variable") cx.marked = "property";
if (atomicTypes.hasOwnProperty(type)) return cont(expect(":"), expression);
}
function commasep(what, end) {
function proceed(type) {
if (type == ",") return cont(what, proceed);
if (type == end) return cont();
return cont(expect(end));
}
return function commaSeparated(type) {
if (type == end) return cont();
else return pass(what, proceed);
};