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Thread: trying to parse the log

  1. #1
    Join Date
    Mar 2014
    Posts
    8

    trying to parse the log

    I am quite new in js, and this is my first code. So basically I want to parse the log something like:

    v=5,ci=3,si=60,sv=1,ss=active,es=-,ai=a23-369b-4da3-b2da-630aee75f8c5,ip='99.114.107.39',rm=GET,rv=HTTP/1.1,rs=200,rt=0.787020,ru='/tag/febe1eab436e98eb4ed3711870496c91/st.js?l=http%3A%2F%2Fwww.michaels.com%2Fv

    The output should be print out by splitting by ',' , line by line, so it should look like:

    v=5,
    ci=3,
    si=60,
    sv=1,
    ss=active,
    es=-,
    ai=a23-369b-4da3-......


    I tried to write some js code, but it doesn't work. My code is following, someone could help me to fix it.

    <!DOCTYPE html>
    <html>
    <head>
    <title>reading file</title>
    <script type="text/javascript">

    var reader = new FileReader();

    function readText(that){

    if(that.files && that.files[0]){
    var reader = new FileReader();
    reader.onload = function (e) {



    var output=e.target.result;
    var str = output;
    var start =0;
    var end = 0;
    while (end<str.length){
    while (end<str.length && str.charAt(end)!=',') {
    end++;
    }
    var stringLine="";
    if (end==str.length) {
    stringLine = str.substring(start, str.length);
    }else {
    stringLine = str.substring(start, end+1);
    }





    var signIndex=0;
    while (stringLine.charAt(signIndex)!='=') {
    signIndex++;
    }
    var newSubString = stringLine.substring(0,signIndex);
    if (newSubString==="ip"){
    document.write(stringLine);
    document.write("<br />");
    }





    start=end+1;
    end=start;
    }

    };//end onload()

    reader.readAsText(that.files[0]);

    }//end if html5 filelist support
    }
    </script>
    </head>
    <body>
    <input type="file" onchange='readText(this)' />
    <div id="main"></div>
    </body>
    </html>

  2. #2
    Join Date
    Oct 2010
    Location
    Versailles, France
    Posts
    1,265
    Simply an arrStr=str.split(','); give an array with the result.

    Then you have only to build a string with something like this (non tested) :
    Code:
    // HTML 
    <p id="rsp"></p> 
    
    // Javascript at the end of the body (for an existing response paragraph)
       var i,arrThat=that.split(','),chn='';
    
       for (i=0;iarrThat.length;i++) chn+=arrThat[i]+"<br>";
       // rsp the response paragraph
       document.getElementById('rsp').innerHTML=chn;
    Last edited by 007Julien; 03-04-2014 at 04:53 AM.

  3. #3
    Join Date
    May 2006
    Location
    Somewhere behind your screen
    Posts
    1,648
    oops i'm late ))

    Code:
    <!doctype html> 
    <html>
    <head>
    <title>reading file</title>
    <script>
    function readText(obj){
    var file = obj.files[0],
        div=document.getElementById('main');
    if(file){
    div.innerHTML='';
    var reader = new FileReader();
    reader.onerror = function(event){div.innerHTML='The file can\'t be read! Error ' + event.target.error.code;}
    reader.onload = function(event){
    var cont = event.target.result.split(',');
    for(var i=0; i<cont.length; i++){
    div.innerHTML+=cont[i]+'<br />';
    }
    }
    reader.readAsText(file);
    }
    }
    
    window.onload=function(){
    document.getElementById('ff').onchange=function(){readText(this);}
    }
    </script>
    </head>
    <body>
    <input type="file" id="ff" />
    <div id="main"></div>
    </body>
    </html>
    xxx: Guess Buddhist riddle: "What is the sound of one hand clapping?"
    yyy: facepalm

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