（转） createTextRange的text和htmltext的用法 -

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（转） createTextRange的text和htmltext的用法

collapse([bStart])
移动Range的插入点
bStart true(移到开头) false(移到末尾)

findText(sText [, iSearchScope] [, iFlags])
在Range中查找sText
iSearchScope 开始位置，负数方向搜索
iFlags 2(整词匹配) 4(区别大小写)

moveStart(sUnit [, iCount])
moveEnd(sUnit [, iCount])
移动Range的开头或结尾
sUnit character(字) word(词) sentence(句) textedit(Range)
iCount 移动数量，默认为1

moveToPoint(iX, iY)
移动光标到坐标(iX,iY)

pasteHTML(sHTMLText)
替换Range中的html

scrollIntoView([bAlignToTop])
滚动使之在当前窗口显示
bAlignToTop true(Range在窗口开头) false(Range在窗口底部)

select()
选中Range

设置光标(qiushuiwuhen)
<textarea id=demo cols=50 rows=5>关于光标定位的补充.abcdefghijklmnopqrstuvwxyz</textarea>
<br><input type=checkbox id=collapse>倒数第<input id=s value=4 size=4>位 <input value="设置光标" type=button onclick=setCursor()>
<script>
function setCursor(){
var num=parseInt(document.all.s.value)
range=document.all.demo.createTextRange();
if(document.all.collapse.checked){
range.collapse(false);
range.moveEnd('character',-1*num);
}else{
range.collapse(true);
range.moveStart('character',-1+num);
}
range.select();
}
</script>

设置文本选择(qiushuiwuhen)
<div id=demo>关于光标定位的补充.abcdefghijklmnopqrstuvwxyz</div>
<br> 从正数<input id=b value=4 size=4> 到倒数第<input id=s value=4 size=4>位 <input value="设置文本选择" type=button onclick=setSelect()>
<script>
function setSelect(){var range = document.body.createTextRange();
range.moveToElementText(demo)
range.moveEnd('character',-1*parseInt(document.all.s.value));
range.moveStart('character',-1+parseInt(document.all.b.value));
range.select();
}
</script>

取得当前坐标系列1(qiushuiwuhen)
<textarea id=show rows=10 cols=100>
先将光标置在这里任意处，然后点击按钮，看光标变化
</textarea>
<br><input type=button value=取得当前坐标 onclick='window.status=GetCursorPos()'>
<script>
function GetCursorPos(oTextArea)
{
s="~!@#$%^";
clipboardData.setData('text',s);
show.focus();
document.execCommand('paste');
var arr=show.value.split(s);
show.value=arr[1];
show.document.selection.empty();
show.document.selection.createRange().select();
show.focus();
clipboardData.setData('text',arr[0]);
document.execCommand('paste');
return arr[0].length;
}
</script>

取得当前坐标系列2(色眯眯的小疯狗)
<textarea rows=10 cols=100 onclick="getCursorPosition()">
北京时间10月6日，世界三大通讯社之一的法新社刊发图文报道，中国国脚孙继海因为在最近的世界杯预选赛中的表现，已经吸引了意大利俱乐部AC米兰和都灵队的争购。中国队只需在10月7日同阿曼队的比赛中战平就将首次进入世界杯决赛圈。图为孙继海(右)1998年12月19日在亚洲杯上的资料图片。</textarea>
<script language=JScript>
function getCursorPosition(){
var src = event.srcElement
var oTR = src.createTextRange()
var textLength = src.innerText.length
var line, char, total, cl
oTR.moveToPoint(window.event.x, window.event.y)
oTR.moveStart("character", -1*textLength)
cl = oTR.getClientRects()
line = cl.length
total = oTR.text.length
oTR.moveToPoint(cl[cl.length-1].left-2, cl[cl.length-1].top-2)
oTR.moveStart("character", -1*textLength)
char = total - oTR.text.length
window.status = "行: " + line +", 列: " + char + ", 第 " + total + " 个字符"
}
</SCRIPT>

取得当前坐标系列3(Yang)
<textarea rows=20 cols=80 id=show>
Alpha 滤镜 : 线形 <img src=images/ad.gif style='filter: Alpha(opacity=100,finishopacity=0,style=1,startx=0,starty=0,finishx=468,finishy=60)'><br>
Alpha 滤镜 :放射状<img src=images/ad.gif style='filter: Alpha(opacity=100,finishopacity=0,style=2,startx=0,starty=0,finishx=468,finishy=60)'><br>
Alpha 滤镜 :长方形<img src=images/ad.gif style='filter: Alpha(opacity=100,finishopacity=0,style=3,startx=0,starty=0,finishx=468,finishy=60)'><br>
<img src=images/ad.gif style='filter:blur(add=ture,direction=135,strength=100)'><br>
<img src=images/ad.gif style='filter:filph'><br>
<img src=images/ad.gif style='filter:filpv'><br>
<img src=images/ad.gif style='filter:chroma(color=white)'><br>
<p style='filter:Dropshadow(color=#ff0080,offx=5,offy=5.positive=0)'>样式表滤镜实例</p><br>
<img src=images/ad.gif style='filter:glow(color=blue,strength=10)'><br>
<img src=images/ad.gif style='filter:gray'><br>
<img src=images/ad.gif style='filter:invert'><br>
<img src=images/ad.gif style='filter:xray'><br>
<img src=images/ad.gif style='filter:light'><br>
<img src=images/ad.gif style='filter:mask(color=white)'><br>
<img src=images/ad.gif style='filter:shadow(color=red,direction=225)'><br>
<img src=images/ad.gif style='filter:wave(add=add,freq=2,lightstrength=50,phase=45,strength=10)'><br>
<img src=images/ad.gif style='filter:wave(add=add,freq=2,lightstrength=30,phase=50,strength=5)'><br>
<img src=images/ad.gif style='filter:wave(add=add,freq=2,lightstrength=90,phase=25,strength=5)'><br>
<img src=images/ad.gif style=''><br>
</textarea>
<input type=button value=运行代码 onclick=window.open().document.writeln(show.value)>
<input type=button value=取得当前坐标 onclick='window.status=GetCursorPos(show)'>
<script>
function GetCursorPos(oTextArea)
{
s="~!@#$%^";
clipboardData.setData('text',s);
oTextArea.focus();
document.execCommand('paste');
var ret=oTextArea.value.indexOf(s);
document.execCommand('undo');
return ret;
}
</script>

取得当前坐标系列4(qiushuiwuhen)
<textarea id=demo cols=50>
中文abcdefghijklmnopqrstuvwxyz
</textarea>
<br><input type=button onclick=get(demo) value=get>
<script>
function get(oTextarea){
var qswh="@#%#^&#*$"
oTextarea.focus();
rng=document.selection.createRange();
rng.text=qswh;
var tmp=oTextarea.value.indexOf(qswh)
rng.moveStart("character", -qswh.length)
rng.text="";
alert(tmp);
}
</script>

取得当前坐标系列5(色眯眯的小疯狗)
<textarea rows=10 cols=100 onclick="getCursorPosition()" onkeyup="getCursorPosition()">
北京时间10月6日，世界三大通讯社之一的法新社刊发图文报道，中国国脚孙继海因为在最近的世界杯预选赛中的表现，已经吸引了意大利俱乐部AC米兰和都灵队的争购。中国队只需在10月7日同阿曼队的比赛中战平就将首次进入世界杯决赛圈。图为孙继海(右)1998年12月19日在亚洲杯上的资料图片。</textarea>
<script language=JScript>
function getCursorPosition(){
var src = event.srcElement
var oTR = src.createTextRange()
var oSel = document.selection.createRange()
var textLength = src.innerText.length
var line, char, total, cl
oTR.moveToPoint(oSel.offsetLeft, oSel.offsetTop)
oTR.moveStart("character", -1*textLength)
cl = oTR.getClientRects()
line = cl.length
total = oTR.text.length
oTR.moveToPoint(cl[cl.length-1].left, cl[cl.length-1].top)
oTR.moveStart("character", -1*textLength)
char = total - oTR.text.length
if (oSel.offsetTop != cl[cl.length-1].top) {line++; char = 0}
else if (src.createTextRange().text.substr(oTR.text.length, 2) == "/r/n") char -= 2
window.status = "行: " + line +", 列: " + char + ", 第 " + total + " 个字符"
}
</SCRIPT>
取得当前坐标系列6(qiushuiwuhen)
<textarea id=demo cols=50>
中文abcdefghijklmnopqrstuvwxyz</textarea>
<br><input type=button value=getPos onclick=getPos(demo)>
<script>
function getPos(obj){
obj.focus();ml=obj.value.length;l=0;
rng=document.selection.createRange();
rng.moveEnd("character",ml);
try{l=ml-rng.htmlText.match(/>((.|/n)+)<//textarea>/i)[1].length}catch(e){}
alert(l)
}
</script>

获取光标位置系列7(flashsoft)
<body><div id=box>点击textarea</div>
<script>
function doit(){
var rng = event.srcElement.createTextRange();
rng.moveToPoint(event.x,event.y);
rng.moveEnd("character",event.srcElement.value.length)
box.innerText = "光标位置：" + (event.srcElement.value.length - rng.text.length)
}
</script><textarea onclick=doit() rows="6" cols="33">sdfsdfsdfsdfsdfsdfsdf</textarea></body>

获取光标位置系列8(flashsoft)

view plain copy to clipboard print ?

< html >
< head >
< meta http-equiv = "Content-Type" content = "text/html;charset=gb2312" >
< meta name = "GENERATOR" content = "MicrosoftFrontPage4.0" >
< meta name = "ProgId" content = "FrontPage.Editor.Document" >
< title > 光标位置 </ title >
< style >
INPUT{border:1solid#000000}
BODY,TABLE{font-size:10pt}
</ style >
</ head >
< body >
< table border = "0" width = "700" cellspacing = "0" cellpadding = "0" >
< tr >
< td width = "479" rowspan = "7" >
点击TextArea实现光标定位
< p >
< textarea rows = "7" cols = "49" id = "box" onclick = tellPoint () > 我怕来不及我要抱着你，直到感觉你的绉纹有了岁月的痕迹，直到视线变得模糊直到不能呼吸
为了你我愿意
动也不能动也要看着你，直到感觉你的发线有了白雪的痕迹，直到肯定你是真的直到失去力气让我们形影不离
如果全世界我也可以放弃，至少还有你值得我去珍惜而你在这里就是生命的奇迹
也许全世界我也可以忘记，就是不愿意失去你的消息你掌心的痣我总记得在哪里
我们好不容易我们身不由已，我怕时间太快不够将你看仔细，我怕时间太慢日夜担心失去你恨不得一夜之间白头永不分离
</ textarea >
< script >
functionmovePoint()
{
var pn = parseInt (pnum.value);
if(isNaN(pn))
return;
var rng = box .createTextRange();
rng.moveStart("character",pn);
rng.collapse(true);
rng.select();
returnCase(rng)
}
functiontellPoint()
{
var rng = event .srcElement.createTextRange();
rng.moveToPoint(event.x,event.y);
rng.moveStart("character",-event.srcElement.value.length)
pnum.value = rng .text.length
returnCase(rng)
}
functionreturnCase(rng)
{
bh.innerText = rng .boundingHeight;
bl.innerText = rng .boundingLeft;
bt.innerText = rng .boundingTop;
bw.innerText = rng .boundingWidth;
ot.innerText = rng .offsetTop;
ol.innerText = rng .offsetLeft;
t.innerText=rng.text;
}
functionselectText(sp,ep)
{
sp = parseInt (sp)
ep = parseInt (ep)
if(isNaN(sp)||isNaN(ep))
return;
var rng = box .createTextRange();
rng.moveEnd("character",-box.value.length)
rng.moveStart("character",-box.value.length)
rng.collapse(true);
rng.moveEnd("character",ep)
rng.moveStart("character",sp)
rng.select();
returnCase(rng);
}
var rg = box .createTextRange();
functionfindText(tw)
{
if( tw =="")
return;
var sw = 0 ;
if(document.selection)
{
sw = document .selection.createRange().text.length;
}
rg.moveEnd("character",box.value.length);
rg.moveStart("character",sw);
if(rg.findText(tw))
{
rg.select();
returnCase(rg);
}
if(rg.text!=tw)
{
alert("已经搜索完了")
rg = box .createTextRange()
}
}
</ script >
</ p >
< p > </ p >
光标位置： < input type = "text" value = "0" id = "pnum" size = "8" > < input type = "button" onclick = "movePoint()" value = "移动光标到指定位置" >
< p > </ p >
选择指定范围： < input type = "text" size = "9" id = "sbox" > -- < input type = "text" size = "9" id = "ebox" > < input type = "button" onclick = "selectText(sbox.value,ebox.value)" value = "选择" >
< p > </ p >
选择查找字符： < input type = "text" value = "" id = "cbox" size = "8" > < input type = "button" onclick = "findText(cbox.value)" value = "查找下一个并选择" >
</ td >
< td width = "217" > boundingHeight:  < span id = "bh" > </ span > </ td >
</ tr >
< tr >
< td width = "217" > boundingWidth:  < span id = "bw" > </ span > </ td >
</ tr >
< tr >
< td width = "217" > boundingTop:  < span id = "bt" > </ span > </ td >
</ tr >
< tr >
< td width = "217" > boundingLeft:  < span id = "bl" > </ span > </ td >
</ tr >
< tr >
< td width = "217" > offsetLeft:  < span id = "ol" > </ span > </ td >
</ tr >
< tr >
< td width = "217" > offsetTop:  < span id = "ot" > </ span > </ td >
</ tr >
< tr >
< td width = "217" > text:  < span style = "position:absolute;z-index:10" id = "t" > </ span > </ td >
</ tr >
</ table >
</ body >
</ html >

view plain copy to clipboard print ?

< html >
< head >
< meta http-equiv = "Content-Type" content = "text/html;charset=gb2312" >
< meta name = "GENERATOR" content = "MicrosoftFrontPage4.0" >
< meta name = "ProgId" content = "FrontPage.Editor.Document" >
< title > 光标位置 </ title >
< style >
INPUT{border:1solid#000000}
BODY,TABLE{font-size:10pt}
</ style >
</ head >
< body >
< table border = "0" width = "700" cellspacing = "0" cellpadding = "0" >
< tr >
< td width = "479" rowspan = "7" >
点击TextArea实现光标定位
< p >
< textarea rows = "7" cols = "49" id = "box" onclick = tellPoint () > 我怕来不及我要抱着你，直到感觉你的绉纹有了岁月的痕迹，直到视线变得模糊直到不能呼吸
为了你我愿意
动也不能动也要看着你，直到感觉你的发线有了白雪的痕迹，直到肯定你是真的直到失去力气让我们形影不离
如果全世界我也可以放弃，至少还有你值得我去珍惜而你在这里就是生命的奇迹
也许全世界我也可以忘记，就是不愿意失去你的消息你掌心的痣我总记得在哪里
我们好不容易我们身不由已，我怕时间太快不够将你看仔细，我怕时间太慢日夜担心失去你恨不得一夜之间白头永不分离
</ textarea >
< script >
functionmovePoint()
{
varpn = parseInt (pnum.value);
if(isNaN(pn))
return;
varrng = box .createTextRange();
rng.moveStart("character",pn);
rng.collapse(true);
rng.select();
returnCase(rng)
}
functiontellPoint()
{
varrng = event .srcElement.createTextRange();
rng.moveToPoint(event.x,event.y);
rng.moveStart("character",-event.srcElement.value.length)
pnum.value = rng .text.length
returnCase(rng)
}
functionreturnCase(rng)
{
bh.innerText = rng .boundingHeight;
bl.innerText = rng .boundingLeft;
bt.innerText = rng .boundingTop;
bw.innerText = rng .boundingWidth;
ot.innerText = rng .offsetTop;
ol.innerText = rng .offsetLeft;
t.innerText=rng.text;
}
functionselectText(sp,ep)
{
sp = parseInt (sp)
ep = parseInt (ep)
if(isNaN(sp)||isNaN(ep))
return;
varrng = box .createTextRange();
rng.moveEnd("character",-box.value.length)
rng.moveStart("character",-box.value.length)
rng.collapse(true);
rng.moveEnd("character",ep)
rng.moveStart("character",sp)
rng.select();
returnCase(rng);
}
varrg = box .createTextRange();
functionfindText(tw)
{
if(tw =="")
return;
varsw = 0 ;
if(document.selection)
{
sw = document .selection.createRange().text.length;
}
rg.moveEnd("character",box.value.length);
rg.moveStart("character",sw);
if(rg.findText(tw))
{
rg.select();
returnCase(rg);
}
if(rg.text!=tw)
{
alert("已经搜索完了")
rg = box .createTextRange()
}
}
</ script >
</ p >
< p > </ p >
光标位置：< input type = "text" value = "0" id = "pnum" size = "8" > < input type = "button" onclick = "movePoint()" value = "移动光标到指定位置" >
< p > </ p >
选择指定范围：< input type = "text" size = "9" id = "sbox" > -- < input type = "text" size = "9" id = "ebox" > < input type = "button" onclick = "selectText(sbox.value,ebox.value)" value = "选择" >
< p > </ p >
选择查找字符：< input type = "text" value = "" id = "cbox" size = "8" > < input type = "button" onclick = "findText(cbox.value)" value = "查找下一个并选择" >
</ td >
< td width = "217" > boundingHeight:  < span id = "bh" > </ span > </ td >
</ tr >
< tr >
< td width = "217" > boundingWidth:  < span id = "bw" > </ span > </ td >
</ tr >
< tr >
< td width = "217" > boundingTop:  < span id = "bt" > </ span > </ td >
</ tr >
< tr >
< td width = "217" > boundingLeft:  < span id = "bl" > </ span > </ td >
</ tr >
< tr >
< td width = "217" > offsetLeft:  < span id = "ol" > </ span > </ td >
</ tr >
< tr >
< td width = "217" > offsetTop:  < span id = "ot" > </ span > </ td >
</ tr >
< tr >
< td width = "217" > text:  < span style = "position:absolute;z-index:10" id = "t" > </ span > </ td >
</ tr >
</ table >
</ body >
</ html >

<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <meta name="GENERATOR" content="Microsoft FrontPage 4.0"> <meta name="ProgId" content="FrontPage.Editor.Document"> <title>光标位置</title> <style> INPUT{border: 1 solid #000000} BODY,TABLE{font-size: 10pt} </style> </head> <body> <table border="0" width="700" cellspacing="0" cellpadding="0"> <tr> <td width="479" rowspan="7"> 点击 TextArea 实现光标定位 <p> <textarea rows="7" cols="49" id="box" onclick=tellPoint()>我怕来不及我要抱着你，直到感觉你的绉纹有了岁月的痕迹，直到视线变得模糊直到不能呼吸为了你我愿意动也不能动也要看着你，直到感觉你的发线有了白雪的痕迹，直到肯定你是真的直到失去力气让我们形影不离如果全世界我也可以放弃，至少还有你值得我去珍惜而你在这里就是生命的奇迹也许全世界我也可以忘记，就是不愿意失去你的消息你掌心的痣我总记得在哪里我们好不容易我们身不由已，我怕时间太快不够将你看仔细，我怕时间太慢日夜担心失去你恨不得一夜之间白头永不分离 </textarea> <script> function movePoint() { var pn = parseInt(pnum.value); if(isNaN(pn)) return; var rng = box.createTextRange(); rng.moveStart("character",pn); rng.collapse(true); rng.select(); returnCase(rng) } function tellPoint() { var rng = event.srcElement.createTextRange(); rng.moveToPoint(event.x,event.y); rng.moveStart("character",-event.srcElement.value.length) pnum.value = rng.text.length returnCase(rng) } function returnCase(rng) { bh.innerText = rng.boundingHeight; bl.innerText = rng.boundingLeft; bt.innerText = rng.boundingTop; bw.innerText = rng.boundingWidth; ot.innerText = rng.offsetTop; ol.innerText = rng.offsetLeft; t.innerText = rng.text; } function selectText(sp,ep) { sp = parseInt(sp) ep = parseInt(ep) if(isNaN(sp)||isNaN(ep)) return; var rng = box.createTextRange(); rng.moveEnd("character",-box.value.length) rng.moveStart("character",-box.value.length) rng.collapse(true); rng.moveEnd("character",ep) rng.moveStart("character",sp) rng.select(); returnCase(rng); } var rg = box.createTextRange(); function findText(tw) { if(tw=="") return; var sw = 0; if(document.selection) { sw = document.selection.createRange().text.length; } rg.moveEnd("character",box.value.length); rg.moveStart("character",sw); if(rg.findText(tw)) { rg.select(); returnCase(rg); } if(rg.text!=tw) { alert("已经搜索完了") rg = box.createTextRange() } } </script> </p> <p></p> 光标位置：<input type="text" value="0" id="pnum" size="8"> <input type="button" onclick="movePoint()" value="移动光标到指定位置"> <p></p> 选择指定范围：<input type="text" size="9" id="sbox"> -- <input type="text" size="9" id="ebox"> <input type="button" onclick="selectText(sbox.value,ebox.value)" value="选择"> <p></p> 选择查找字符：<input type="text" value="" id="cbox" size="8"> <input type="button" onclick="findText(cbox.value)" value="查找下一个并选择"> </td> <td width="217">boundingHeight: <span id="bh"></span></td> </tr> <tr> <td width="217">boundingWidth: <span id="bw"></span></td> </tr> <tr> <td width="217">boundingTop: <span id="bt"></span></td> </tr> <tr> <td width="217">boundingLeft: <span id="bl"></span></td> </tr> <tr> <td width="217">offsetLeft: <span id="ol"></span> </td> </tr> <tr> <td width="217">offsetTop: <span id="ot"></span> </td> </tr> <tr> <td width="217">text: <span style="position: absolute; z-index: 10" id="t"></span> </td> </tr> </table> </body> </html>
今天又看到一种

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