|
,NEGATIVE_INFINITY,POSITIVE_INFINITY");
putMethods(methodList,obj,"toString,toLocalString,toFixed,toExponential,toPrecision");
//基本RegExp方法
putMethods(methodList,obj,"global,ignoreCase,lastIndex,multiline,source,exec,test");
//基本String方法
putMethods(methodList,obj,"charAt,charCodeAt,contact,indexOf,lastIndexOf,match,replace,search,slice,split,substring,substr,toLowerCase,toString,toUpperCase,valueOf,fromCharCode");
putMethods(methodList,obj,"anchor,big,blink,bold,fixed,fontcolor,fontsize,italics,link,small,strike,sub,sup");
}
for (each in obj)
{
methodList.pushDistinct(each);
}
methodList.sort();
if (methodList.length > 0)
{
methods.options.length = 0;
for (var i = 0; i < methodList.length; i++)
{
methods.options.add(new Option(methodList[i]));
}
if (methods.options.length > 10)
{
methods.size = 10;
}
else
{
methods.size = methods.options.length;
}
methods.style.top = oSel.offsetTop;
methods.style.left = oSel.offsetLeft;
methods.style.display = "";
methods.options[0].selected = true;
methods.focus();
}
}
catch(e){}
}
function SelectMethod()
{
var src = event.srcElement;
if(event.keyCode == 13)
{
SelMethod(src);
}
if(event.keyCode == 27 || event.keyCode == 8 || event.keyCode == 32)
{
src.style.display = "none";
editbox.focus();
}
}
function SelMethod(src)
{
clipboardData.setData('text',src.options[src.selectedIndex].text);
editbox.focus();
editbox.document.execCommand('paste');
src.style.display = "none";
getCursorPosition();
}
function getPos(text) //计算行数、列数
{
var rows = 1;
var cols = 1;
var idx = 0;
var subText = text;
while((idx = subText.indexOf("\n")) != -1)
{
subText = subText.substring(idx + 1);
rows++;
}
return new Array(rows, subText.length + 1);
}
function getNullRows(src,oSel) //计算空行
{
var rows = 0;
var offsetEnd = src.document.selection.createRange();
var oldTop = 2;
var oldLeft = 2;
while(1)
{
offsetEnd.moveToPoint(oSel.offsetLeft, oSel.offsetTop);
offsetEnd.moveStart("character",-1-rows);
if (offsetEnd.text.length > 0 || offsetEnd.offsetTop == oldTop && offsetEnd.offsetLeft == oldLeft)
{
break;
}
rows ++;
oldTop = offsetEnd.offsetTop;
oldLeft = offsetEnd.offsetLeft;
}
return rows;
}
function getCursorPosition()
{
var src = event.srcElement;
var offset = src.document.selection.createRange();
var oSel = document.selection.createRange();
var textLength = src.innerText.length;
offset.moveToPoint(oSel.offsetLeft, oSel.offsetTop);
offset.moveStart("character", -99999);
//src.document.execCommand("ForeColor",false,"#ff0000");
var rowSpans = offset.getClientRects();
var pos = getPos(offset.text);
var charCodes = offset.text.length; //字符总数
var chars = offset.text.replace(/\r\n/g,"").length + 1; //字符
var extRows = getNullRows(src,oSel);
if(extRows > 0)
{
pos[0] += extRows;
pos[1] = 1;
}
window.status = "行: " + pos[0] +", 列: " + pos[1] + ", 第 " + chars + " 个字符" + " ("+ oSel.offsetTop +","+
oSel.offsetLeft +")";
return charCodes;
}
///词法解析过程................................................................................
///............................................................................................
///............................................................................................
var SyntaxSet = new Array(); //词法规则集合
SyntaxSet.All = new Array();
SyntaxSet.parse = function(token) //针对token返回rule
{
for (var i = 0; i < this.All.length; i++)
{
var syntaxes = this.All[i];
for (var j = 0; j < syntaxes.rules.All.length; j++)
{
if (syntaxes.rules.All[j].test(token))
{
syntaxes.rules.All[j].color = syntaxes.color;
return syntaxes.rules.All[j];
}
}
}
return null;
}
SyntaxSet.add = function(syntaxes)
{
if(this[syntaxes.name] != null)
return;
this[syntaxes.name] = syntaxes;
this.All.push(syntaxes);
}
function Syntaxes(name, color, cons) //词法规则组（同组规则用一种颜色标记）
{
this.name = name; //规则组名称
this.color = color; //标记该语法的颜色
this.rules = new Array(); //语法规则（以次序决定优先级）
this.rules.All = new Array();
this.cons = cons; //边界约束
Syntaxes.prototype.addRule = function(rule)
{
if(this.rules[rule.name] != null)
return;
this.rules[rule.name] = rule;
this.rules.All.push(rule);
}
}
function SyntaxRule(name, regExp) //词法规则
{
this.name = name; //规则名称
this.expr = regExp; //规则描述 (正则表达式)
SyntaxRule.prototype.test = function(token)
{
return this.expr.test(token);
}
}
function RegExprX(exprStr) //扩展正则表达式的功能，支持定义嵌套
{
this.expr = exprStr;
}
RegExprX.prototype.getPattern = function(tag) //获取正则表达式对象
{
if (tag == null)
return new RegExp(this.expr);
else
return new RegExp(this.expr, tag);
}
RegExprX.prototype.concat = function(expr, rule) //连接两个正则表达式串
{
if (rule == null)
this.expr += expr; //直接连接
else if (rule == "union") //联合
this.expr = "(" + this.expr + ")" + "|" + "(" + expr + ")";
else if (rule == "cons") //约束
this.expr = this.expr + "(?=" + expr + ")";
return this.expr;
}
//为保证正确计算偏移量需要替换回车\n\r为\xff
SyntaxSet.add(new Syntaxes("keywords", "#0000ff", /[\s\.\xfe\xff\xfd\(\{\}\)\;\,]/)); //词法?关键词?蓝色
SyntaxSet["keywords"].addRule(new SyntaxRule("Function",/function/));
SyntaxSet["keywords"].addRule(new SyntaxRule("Variable",/var/));
SyntaxSet["keywords"].addRule(new SyntaxRule("Return",/return/));
SyntaxSet["keywords"].addRule(new SyntaxRule("Exception",/(try|catch|throw)/));
SyntaxSet["keywords"].addRule(new SyntaxRule("Condition",/(if|else|switch)/));
SyntaxSet["keywords"].addRule(new SyntaxRule("Cycle",/(for|while|do)/));
SyntaxSet["keywords"].addRule(new SyntaxRule("Type",/(int|double|float|void|char)/));
SyntaxSet["keywords"].addRule(new SyntaxRule("Right",/(public|private|protected|static)/));
SyntaxSet["keywords"].addRule(new SyntaxRule("Constant",/(null|undefined|NaN|Infinity)/));
SyntaxSet["keywords"].addRule(new SyntaxRule("Construct",/(new|delete)/));
SyntaxSet.add(new Syntaxes("objects", "#FF0000", /[\s\.\xfe\xff\xfd\(\{\}\)\;\,]/)); //词法?对象?红色
SyntaxSet["objects"].addRule(new SyntaxRule("Object",/(Array|arguments|Boolean|Date|Error|Function|Object|Number|Math|RegExp|String)/));
SyntaxSet.add(new Syntaxes("global", "#800000", /[\s\.\xfe\xff\xfd\(\{\}\)\;\,]/)); //词法?系统函数?红色
SyntaxSet["global"].addRule(new SyntaxRule("SystemFunc",/(alert|parseFloat|parseInt|eval|decodeURI|decodeURIComponent|encodeURI|encodeURIComponent|escape|eval|isFinite|isNaN|unescape)/));
SyntaxSet.add(new Syntaxes("String", "#ff00ff", /[\s\.\xfe\xff\xfd\(\{\}\)\;\,\+\-\*\/]/)); //词法?字符串?粉色
SyntaxSet["String"].addRule(new SyntaxRule("String",
/('((\\\')|[^\xff\'])*([^\\\']|(\\\'))')|("((\\\")|[^\xff\"])*([^\\\"]|(\\\"))")/));
SyntaxSet.add(new Syntaxes("remarks", "#008000")); //词法?注释?绿色
SyntaxSet["remarks"].addRule(new SyntaxRule("ShortRemark",/\/\/[^\xff]*/));
SyntaxSet["remarks"].addRule(new SyntaxRule("LongRemark",/\/\*((.*\*\/)|(.*$))/));
function Grammars() //语法规则
{
}
</script>
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