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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>DataBase_Relation Algebra, Ahmad yoosofan</title>
<!--
webrel - Version 1.0
This file is part of webrel.
Copyright (C) 2010, Ahmad Yoosofan.
Thanks to
Sara Izadi (former co-developer)
This software is distributed
under the terms of the GNU General Public License.
webrel is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
webrel is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with webrel. If not, see <http://www.gnu.org/licenses/>.
-->
<script language="javascript">
//_______________________Add_jsFiles_________________________________
</script>
<script language="javascript" src="src/old/initi.js"></script>
<script language="javascript" src="src/old/token.js"></script>
<script language="javascript" src="src/old/lexic.js"></script>
<script language="javascript" src="src/old/relation.js"></script>
<script language="javascript" src="src/old/syntax.js"></script>
<script language="javascript" src="src/old/type.js"></script>
<script language="javascript" src="src/old/value_table.js"></script>
<script language="javascript" src="src/old/stack.js"></script>
<script language="javascript" src="src/old/table.js"></script>
<script language="javascript" src="src/old/coloredtable.js"></script>
<script language="javascript" src="src/old/shift_reduce.js"></script>
<script language="javascript" src="src/old/DB/bookDB.js"></script>
<script language="javascript" src="src/old/DB/med.js"></script>
<script language="javascript" src="src/old/DB/spno.js"></script>
<script language="javascript">
//___________________________________________________________________
</script>
<script language="javascript">
//_______________________Data_Declaration____________________________
var action_table_data=new Array(70);
for(var i=0;i<70;i++)
action_table_data[i]=new Array(308);
var goto_table_schema=new Array(82);
var action_table_schema=new Array(90);
var goto_table_data=new Array(90);
for(var i=0;i<90;i++)
goto_table_data[i]=new Array(310);
var flag=1;
var text="";
var text1="";
var text2="";
MainTable=new value_table(30);
var mtp=0;
var sd_flag=false;
var debug_flag=false;
var debug_str="";
//_______________________Lexic_Data___________________________________
t=new Token(100);
var str=""
var first=0
var last=0
var type="s"
var counter=0
var lex_err_flag=0
//_______________________Syntax_Data__________________________________
stack=new Stack(70);
var sp=0;
var tp=0;
var syn_err_flag=0;
var not=false;
//________________________________
var temp,target_name,output_value,simple_exp_index,attrib_name,value,scalar,type,index,index1,index2,opr,a_type;
var output,relation,relation1,relation2;
var attrib_array,output_array,r_array;
var attrib_array2d,output_array2d,attrib_array2;
var t_value;
var eap=0;
var tep=0;
var tcp=0;
var cap=0;
var save_mtp=0;
var flag_error=false;
var extend_error=false;
var where_error=false;
var r_index=0;
var att_name=true;
var tup_exp=true;
var tup_att=true;
var ext_co=true;
var ren_co=true;
var sum_ad=true;
//________________________________
var extend_array=new Array(20);
for(var d=0;d<20;d++)
extend_array[d]=new Token(3);
var temp_extend=new Array(20);
for(var c=0;c<20;c++)
temp_extend[c]=new Token(3);
var condition_array=new Array(30);
for(var d=0;d<30;d++)
condition_array[d]=new Token(3);
var temp_condition=new Array(30);
for(var c=0;c<30;c++)
temp_condition[c]=new Token(3);
//________________________________
var book_col=5;
var book_row=6;
var members_col=3;
var members_row=3;
var borrow_row=2;
var borrow_col=2;
var s_col=4;
var s_row=5;
var p_col=5;
var p_row=6;
var j_row=7;
var j_col=3;
var sp_col=3;
var sp_row=12;
var spj_row=24;
var spj_col=4;
var i=0;
dend=new Relation(5,1);
dor=new Relation(6,1);
med=new Relation(12,2);
var dend_array=new Array(6);
for(var da=0;da<6;da++)
dend_array[da]=new Array();
var dor_array=new Array(10);
for(var da=0;da<10;da++)
dor_array[da]=new Array();
var med_array=new Array(13);
for(var da=0;da<13;da++)
med_array[da]=new Array();
var book=new Array(book_row);
for(i=0;i<=book_row;i++)
book[i]=new Array();
var members=new Array(members_row);
for(i=0;i<=members_row;i++)
members[i]=new Array();
var borrow=new Array(borrow_row);
for(i=0;i<=borrow_row;i++)
borrow[i]=new Array();
var j_array=new Array(10);
for(var da=0;da<10;da++)
j_array[da]=new Array();
var p_array=new Array(13);
for(var da=0;da<13;da++)
p_array[da]=new Array();
var s_array=new Array(s_row);
for(i=0;i<=s_row;i++)
s_array[i]=new Array();
var sp_array=new Array(sp_row);
for(i=0;i<=sp_row;i++)
sp_array[i]=new Array();
var spj_array=new Array(spj_row);
for(i=0;i<=spj_row;i++)
spj_array[i]=new Array();
spno_make();
MainTable.setname(mtp,"s");
MainTable.setrelation(mtp,s_relation);
mtp++;
MainTable.setname(mtp,"p");
MainTable.setrelation(mtp,p_relation);
mtp++;
MainTable.setname(mtp,"j");
MainTable.setrelation(mtp,j_relation);
mtp++;
MainTable.setname(mtp,"sp");
MainTable.setrelation(mtp,sp_relation);
mtp++;
MainTable.setname(mtp,"spj");
MainTable.setrelation(mtp,spj_relation);
mtp++;
var s_mtp=mtp;
var m_mtp=mtp;
//____________________________________________________________________
function reset_code()
{
document.frmmain.code.value="Please enter your code here!";
}
//_____________________________________________
function init_load()
{
first=0
last=0
type="s"
counter=0
var eap=0;
var tep=0;
var tcp=0;
var cap=0;
sp=0;
stack.pushs("number",0,"null");
tp=0;
flag_error=false;
}
//______________________________________________
function main_init()
{
lex_err_flag=0;
syn_err_flag=0;
//ifrmtable.document.value="";
var output;
}
//______________________________________________
function execute()
{
var theDiv = document.getElementById("answer_d");
theDiv.innerHTML = "";
main_init();
var i=0;
var s_i=0;
var main_str="";
var end_str="$";
debug_str="";
main_str=main_str.concat(document.frmmain.code.value)
while(true)
{
if(window.document.frmmain.checkbox.checked==true)
debug_flag=true;
else
debug_flag=false;
init_load()
str=""
var temp=""
if(i>=main_str.length)
break;
while(main_str.charAt(i)!=';'&&i<main_str.length)
{
temp=temp.concat(main_str.charAt(i));
i++;
}
temp=temp.concat(main_str.charAt(i))
i++
str=temp
str=str.concat(end_str);
lexic()
if(lex_err_flag==0)
syntax()
if((syn_err_flag==1)||(lex_err_flag==1))
break;
}
if(lex_err_flag==1)
alert("lexical error!")
else if(syn_err_flag==1)
alert("syntax error!")
if(debug_flag)
{
var theDiv = document.getElementById("answer_d");
theDiv.innerHTML = debug_str;
}
}
//************************
function loading()
{
mtp=0;
if(document.frmmain.DBSelect.options[document.frmmain.DBSelect.options.selectedIndex].value==1)
{
spno_make();
MainTable.setname(mtp,"s");
MainTable.setrelation(mtp,s_relation);
mtp++;
MainTable.setname(mtp,"p");
MainTable.setrelation(mtp,p_relation);
mtp++;
MainTable.setname(mtp,"j");
MainTable.setrelation(mtp,j_relation);
mtp++;
MainTable.setname(mtp,"sp");
MainTable.setrelation(mtp,sp_relation);
mtp++;
MainTable.setname(mtp,"spj");
MainTable.setrelation(mtp,spj_relation);
mtp++;
}
else if(document.frmmain.DBSelect.options[document.frmmain.DBSelect.options.selectedIndex].value==2)
{
make_relation();
MainTable.setname(mtp,"book");
MainTable.setrelation(mtp,book_relation);
mtp++;
MainTable.setname(mtp,"members");
MainTable.setrelation(mtp,members_relation);
mtp++;
MainTable.setname(mtp,"borrow");
MainTable.setrelation(mtp,borrow_relation);
mtp++;
}
else if(document.frmmain.DBSelect.options[document.frmmain.DBSelect.options.selectedIndex].value==3)
{
med_make();
MainTable.setname(mtp,"med");
MainTable.setrelation(mtp,med);
mtp++;
MainTable.setname(mtp,"dor");
MainTable.setrelation(mtp,dor);
mtp++;
MainTable.setname(mtp,"dend");
MainTable.setrelation(mtp,dend);
mtp++;
}
s_mtp=mtp;
m_mtp=mtp;
}
//*************************
function showing()
{
sd_flag=true;
s_mtp=m_mtp;
if(mtp>m_mtp)
show_table_drop(MainTable.getrelation(s_mtp),MainTable.getrelation(s_mtp).getrow()+1,MainTable.getrelation(s_mtp).getcolumn());
else
alert("There is no new table!...");
}
//*************************
function droping()
{
if(sd_flag)
{
if(s_mtp<mtp-1)
{
MainTable.setname(s_mtp,MainTable.getname(mtp-1));
MainTable.setrelation(s_mtp,MainTable.getrelation(mtp-1));
mtp--;
s_mtp--;
next();
}
else
{
mtp--;
alert("There is no more table!...");
var theDiv = document.getElementById("drop_d");
theDiv.innerHTML = "";
}
}
}
//*************************
function next()
{
if(sd_flag)
{
if(s_mtp<mtp-1)
{
s_mtp++;
show_table_drop(MainTable.getrelation(s_mtp),MainTable.getrelation(s_mtp).getrow()+1,MainTable.getrelation(s_mtp).getcolumn());
}
else
alert("There is no more table!...")
}
}
//*************************
function previouse()
{
if(sd_flag)
{
if(s_mtp>m_mtp)
{
s_mtp--;
show_table_drop(MainTable.getrelation(s_mtp),MainTable.getrelation(s_mtp).getrow()+1,MainTable.getrelation(s_mtp).getcolumn());
}
else
alert("There is no more table!...")
}
}
//*************************
function cancel()
{
if(sd_flag)
{
s_mtp=m_mtp;
var theDiv = document.getElementById("drop_d");
theDiv.innerHTML = "Select Show & drop!";
sd_flag=false;
}
}
//*************************
</script>
</head>
<body>
<form action="" method="post" enctype="multipart/form-data" name="frmmain">
<table width="100%" border="0">
<!-- <tr>
<td colspan="4"><table width="100%" border="1" bordercolor="666666">
<tr>
<td align="center"><img src="img/logo1.jpg" width="331" height="116"></td>
</tr>
</table></td>
</tr>
-->
<tr>
<td height="59" colspan="4"><table width="95%" border="0">
<tr>
<!-- <td width="10%"><span class="style2">Data base: </span></td> -->
<td width="15%">Data base:</td>
<td width="25%"><select name="DBSelect" size="1" id="DBSelect" style="width: 100%">
<option value="1">Suppliers_parts_projects</option>
<option value="2">Library</option>
<option value="3">Divide_example</option>
</select></td>
<td width="10%"><input name="Loadbtn" type="button" id="Loadbtn2" value="Load" style="width: 100% " onClick="loading()"></td>
<!-- <td width="5%"> </td> -->
<td width="30%">
<a href="http://yoosofan.github.io/">Ahmad Yoosofan</a><br />
Sara Izadi
</td>
</tr>
</table>
<label></label> </td>
</tr>
<tr>
<td colspan="2">
<textarea name="code" cols="255" rows="3" id="textarea" style="width: 95%; font-family: monospace; font-size: 1.4em;" autofocus="autofocus" placeholder="Enter you code here. like:\np{pname}; \nThen press Ctrl+Enter or Click on Run button" ></textarea>
</td>
<td colspan="2">
<!--
<a href="help/help.html" target="_blank"> راهنمایی </a> <br />
-->
<a href="https://git.launchpad.net/~yoosofan/webrel" target="_blank">Source Code</a> <br />
<a href="help/examples.html" target="_blank">Examples</a>
</td>
</tr>
<tr>
<td><input type="checkbox" name="checkbox" value="checkbox">
Debug</td>
<td width="10%"><input name="showbtn" type="button" id="showbtn" value="Show & Drop" style="width: 100% " onClick="showing()"></td>
<td width="10%"><input name="resetbtn" type="button" id="resetbtn" value="Reset" style="width: 80% " onClick="reset_code()"></td>
<td width="10%"><input name="runbtn" type="button" id="runbtn" style="width:80%" value="Run" width="20%" onclick="execute()"></td>
</tr>
<tr>
<td colspan="4" style="text-align:center; background-color:#ADA8A8; width: 100%; height:100%;">Result</td>
</tr>
<tr>
<td colspan="4"><table width="100%" border="1">
<tr>
<td><div id="answer_d"></div>
<p> </p>
<p> </p>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td colspan="4" style="text-align:center; background-color:#ADA8A8; width: 100%; height:100%;">Show & Drop</td>
</tr>
<tr>
<td colspan="4"><table width="100%" border="1">
<tr>
<td><div id="drop_d">Select Show & Drop! </div>
<p> </p>
</td>
</tr>
</table></td>
</tr>
<tr>
<td colspan="4"><table width="100%" border="0">
<tr>
<td width="109"> </td>
<td width="7%"><input name="dropbtn" type="button" id="dropbtn" value="Drop" style="width: 100% " onClick="droping()"></td>
<td width="7%"><input name="prebtn" type="button" id="prebtn" value="Previouse" style="width: 100% " onClick="previouse()"></td>
<td width="7%"><input name="nextbtn" type="button" id="nextbtn" value="Next" style="width: 100% " onClick="next()"></td>
<td width="7%"><input name="cancelbtn" type="button" id="cancelbtn" style="width:100%" value="Cancel" width="20" onclick="cancel()"></td>
</tr>
</table></td>
</tr>
</table>
</form>
<script language="javascript">
init_tables();
var textAreas = document.getElementsByTagName('textarea');
textAreas[0].onkeyup = function (e) {
var evt = window.event || e;
if ((event.keyCode == 10 || event.keyCode == 13) && event.ctrlKey)
execute();
}
Array.prototype.forEach.call(textAreas, function(elem) {
elem.placeholder = elem.placeholder.replace(/\\n/g, '\n');
});
</script>
</body>
</html>