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  • Split string on first two colons

    - by Mark Miller
    I would like to split a column of strings on the first two colons, but not on any subsequent colons: my.data <- read.table(text=' my.string some.data 12:34:56:78 -100 87:65:43:21 -200 a4:b6:c8888 -300 11:bb:ccccc -400 uu:vv:ww:xx -500', header = TRUE) desired.result <- read.table(text=' my.string1 my.string2 my.string3 some.data 12 34 56:78 -100 87 65 43:21 -200 a4 b6 c8888 -300 11 bb ccccc -400 uu vv ww:xx -500', header = TRUE) I have searched extensively and the following question is the closest to my current dilemma: Split on first comma in string Thank you for any suggestions. I prefer to use base R.

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  • PHP: Return string between two characters

    - by Nic Hubbard
    I am wanting to use "keywords" within a large string. These keywords start and end using *my_keyword* and are user defined. How, within a large string, can I search and find what is between the two * characters and return each instance? The reason it might change it, that parts of the keywords can be user defined, such as *page_date_Y* which might show the year in which the page was created. So, again, I just need to do a search and return what is between those * characters. Is this possible, or is there a better way of doing this if I don't know the "keyword" length or what i might be?

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  • detect a string contained by another discontinuously

    - by SpawnCxy
    Recently I'm working on bad content(such as advertise post) filter of a BBS.And I write a function to detect a string is in another string not continuously.Code as below: $str = 'helloguys'; $substr1 = 'hlu'; $substr2 = 'elf'; function detect($a,$b) //function that detect a in b { $c = ''; for($i=0;$i<=strlen($a);$i++) { for($j=0;$j<=strlen($b);$j++) { if($a[$i] == $b[$j]) { $b=substr($b,$j+1); $c .=$a[$i]; break; } } } if($c == $a) return true; else return false; } var_dump(detect($substr1,$str)); //true var_dump(detect($substr2,$str)); //false Since the filter works before the users do their posts so I think the efficiency here is important.And I wonder if there's any better solution? Thanks!

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  • C++ string how to

    - by typoknig
    This is a very simple question and I feel stupid for asking it, but I am pressed for time and I need to figure it out :) I just need to know how to make a string that contains text and other variables. For instance in Java I can just do this: String someString; for(int i = 0; i>10; i++){ someString = ("this text has printed " + i + " times"); //how do I create this line in C++? System.out.println(someString); i++; }

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  • the difference of String.valueOf(char) and +

    - by Will Yu
    to show the default value of char ,I wrote code like this: public class TestChar { static char a; public static void main(String[] args) { System.out.println("."+String.valueOf(a)+"."); System.out.println("the default char is "+a); } } but the console output is confused.the first is ". ." ,however the second is "the default char is [](like this ,I don't know how to describe it.)" why?thanks for help

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  • PHP String to Float

    - by John
    I am not familiar with PHP at all and had a quick question. I have 2 variables @pricePerUnit and @invoicedUnits. Here's the code that is setting these to values: $InvoicedUnits = ((string) $InvoiceLineItem->InvoicedUnits); $pricePerUnit = ((string) $InvoiceLineItem->PricePerUnit); If I output this, I get the correct values. Lets say 5000 invoiced units and 1.00 for price. Now, I need to show the total amount spent. When I multiply these two together it doesn't work (as expected, these are strings). But I have no clue how to parse/cast/convert variables in PHP. What should I do?

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  • How to return a string from char[] array using recursion loop.(java)

    - by Daniel
    I am very bed in recursion... I need to convert a char[] array by using recursion loop only, into string. Without using for(),while()... loops. For example if i have char array: a[0]='H', a[1]='e', a[2]='l',a[3]= 'l',a[4]= 'o', it returns H e l l o. What I doing wrong? public String toFormattedString(char[] a) { int temp =a.length; if (a == null) return "null"; if (a.length == 0) return "0"; if( a.length == 1 ) else if( a[0] == a[a.length] ) return toFormattedString (a[a.length -1])+a[a.length];

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  • How to associate jquery validation when only one button if there are many??

    - by Eyla
    Greetings, In my current project, I have gridview, search button, text box for search, text box, and submit button. -I should input string in the search box then click search button. -when click search button, it will retrieve all matches records then bind them to the view grid. -then when I click a record in the gridview, it should bound a field to the second text box. finally I should submit the page by clicking in submit button. where is the problem: -the problme that I'm using jquery validation plugin that will make second text box is required. -when I click search button will not allow postback until I write some thing in second text box. How can I make scond text box only do validation for required field only when click asp.net submit button. here is my code: <%@ Page Title="" Language="C#" MasterPageFile="~/Master.Master" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="IMAM_APPLICATION.WebForm1" %> <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %> <asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="server"> <script src="js/jquery-1.4.1-vsdoc.js" type="text/javascript"></script> <script src="js/jquery.validate.js" type="text/javascript"></script> <script src="js/js.js" type="text/javascript"></script> <script type="text/javascript"> $(document).ready(function() { $("#aspnetForm").validate({ // debug: true, rules: { "<%=txtFirstName.UniqueID %>": { required: true } }, errorElement: "mydiv", wrapper: "mydiv", // a wrapper around the error message errorPlacement: function(error, element) { offset = element.offset(); error.insertBefore(element) error.addClass('message'); // add a class to the wrapper error.css('position', 'absolute'); error.css('left', offset.left + element.outerWidth()); error.css('top', offset.top - (element.height() / 2)); } }); }) </script> <div id="mydiv"> <asp:GridView ID="GridView1" runat="server" style="position:absolute; top: 280px; left: 30px; height: 240px; width: 915px;" PageSize="5" onselectedindexchanged="GridView1_SelectedIndexChanged" AutoGenerateColumns="False" DataKeyNames="idcontact_info"> <Columns> <asp:CommandField ShowSelectButton="True" InsertVisible="False" ShowCancelButton="False" /> <asp:BoundField DataField="First_Name" HeaderText="First Name" /> <asp:BoundField AccessibleHeaderText="Midle Name" DataField="Midle_Name" /> <asp:BoundField DataField="Last_Name" HeaderText="Last Name" /> <asp:BoundField DataField="Phone_home" HeaderText="Phone Home" /> <asp:BoundField DataField="cell_home" HeaderText="Mobile Home" /> <asp:BoundField DataField="phone_work" HeaderText="Phone Work" /> <asp:BoundField DataField="cell_Work" HeaderText="Mobile Work" /> <asp:BoundField DataField="Email_Home" HeaderText="Personal Home" /> <asp:BoundField DataField="Email_work" HeaderText="Work Email" /> </Columns> </asp:GridView> <asp:ObjectDataSource ID="ObjectDataSource1" runat="server" DeleteMethod="Delete" InsertMethod="Insert" OldValuesParameterFormatString="original_{0}" SelectMethod="GetData" TypeName="IMAM_APPLICATION.DSContactTableAdapters.contact_infoTableAdapter" UpdateMethod="Update"> <DeleteParameters> <asp:Parameter Name="Original_idcontact_info" Type="Int32" /> </DeleteParameters> <UpdateParameters> <asp:Parameter Name="Title" Type="String" /> <asp:Parameter Name="First_Name" Type="String" /> <asp:Parameter Name="Midle_Name" Type="String" /> <asp:Parameter Name="Last_Name" Type="String" /> <asp:Parameter Name="Address1_Home" Type="String" /> <asp:Parameter Name="Address2_Home" Type="String" /> <asp:Parameter Name="City_Home" Type="String" /> <asp:Parameter Name="State_Home" Type="String" /> <asp:Parameter Name="Prov_Home" Type="String" /> <asp:Parameter Name="ZipCode_Home" Type="String" /> <asp:Parameter Name="Country_Home" Type="String" /> <asp:Parameter Name="Phone_home" Type="String" /> <asp:Parameter Name="Phone_Home_Ext" Type="String" /> <asp:Parameter Name="Cell_home" Type="String" /> <asp:Parameter Name="Fax_home" Type="String" /> <asp:Parameter Name="Email_Home" Type="String" /> <asp:Parameter Name="material_status" Type="String" /> <asp:Parameter Name="DateOfBrith" Type="String" /> <asp:Parameter Name="company" Type="String" /> <asp:Parameter Name="Work_Field" Type="String" /> <asp:Parameter Name="Occupation" Type="String" /> <asp:Parameter Name="sub_Occupation" Type="String" /> <asp:Parameter Name="Other" Type="String" /> <asp:Parameter Name="Address1_work" Type="String" /> <asp:Parameter Name="Address2_work" Type="String" /> <asp:Parameter Name="City_Work" Type="String" /> <asp:Parameter Name="State_Work" Type="String" /> <asp:Parameter Name="Prov_Work" Type="String" /> <asp:Parameter Name="ZipCode_Work" Type="String" /> <asp:Parameter Name="Country_Work" Type="String" /> <asp:Parameter Name="Phone_Work" Type="String" /> <asp:Parameter Name="Phone_Work_Ext" Type="String" /> <asp:Parameter Name="Cell_Work" Type="String" /> <asp:Parameter Name="Fax_Work" Type="String" /> <asp:Parameter Name="Email_work" Type="String" /> <asp:Parameter Name="WebSite" Type="String" /> <asp:Parameter Name="Note" Type="String" /> <asp:Parameter Name="Groups" Type="String" /> <asp:Parameter Name="InterPhoneHome" Type="Int32" /> <asp:Parameter Name="InterMobileHome" Type="Int32" /> <asp:Parameter Name="InterFaxHome" Type="Int32" /> <asp:Parameter Name="InterPhoneWork" Type="Int32" /> <asp:Parameter Name="InterMobileWork" Type="Int32" /> <asp:Parameter Name="InterFaxWork" Type="Int32" /> <asp:Parameter Name="rdoPhoneHome" Type="Int32" /> <asp:Parameter Name="rdoMobileHome" Type="Int32" /> <asp:Parameter Name="rdoEmailHome" Type="Int32" /> <asp:Parameter Name="rdoPhoneWork" Type="Int32" /> <asp:Parameter Name="rdoMobileWork" Type="Int32" /> <asp:Parameter Name="rdoEmailWork" Type="Int32" /> <asp:Parameter Name="locationHome" Type="Int32" /> <asp:Parameter Name="locationWork" Type="Int32" /> <asp:Parameter Name="Original_idcontact_info" Type="Int32" /> </UpdateParameters> <InsertParameters> <asp:Parameter Name="Title" Type="String" /> <asp:Parameter Name="First_Name" Type="String" /> <asp:Parameter Name="Midle_Name" Type="String" /> <asp:Parameter Name="Last_Name" Type="String" /> <asp:Parameter Name="Address1_Home" Type="String" /> <asp:Parameter Name="Address2_Home" Type="String" /> <asp:Parameter Name="City_Home" Type="String" /> <asp:Parameter Name="State_Home" Type="String" /> <asp:Parameter Name="Prov_Home" Type="String" /> <asp:Parameter Name="ZipCode_Home" Type="String" /> <asp:Parameter Name="Country_Home" Type="String" /> <asp:Parameter Name="Phone_home" Type="String" /> <asp:Parameter Name="Phone_Home_Ext" Type="String" /> <asp:Parameter Name="Cell_home" Type="String" /> <asp:Parameter Name="Fax_home" Type="String" /> <asp:Parameter Name="Email_Home" Type="String" /> <asp:Parameter Name="material_status" Type="String" /> <asp:Parameter Name="DateOfBrith" Type="String" /> <asp:Parameter Name="company" Type="String" /> <asp:Parameter Name="Work_Field" Type="String" /> <asp:Parameter Name="Occupation" Type="String" /> <asp:Parameter Name="sub_Occupation" Type="String" /> <asp:Parameter Name="Other" Type="String" /> <asp:Parameter Name="Address1_work" Type="String" /> <asp:Parameter Name="Address2_work" Type="String" /> <asp:Parameter Name="City_Work" Type="String" /> <asp:Parameter Name="State_Work" Type="String" /> <asp:Parameter Name="Prov_Work" Type="String" /> <asp:Parameter Name="ZipCode_Work" Type="String" /> <asp:Parameter Name="Country_Work" Type="String" /> <asp:Parameter Name="Phone_Work" Type="String" /> <asp:Parameter Name="Phone_Work_Ext" Type="String" /> <asp:Parameter Name="Cell_Work" Type="String" /> <asp:Parameter Name="Fax_Work" Type="String" /> <asp:Parameter Name="Email_work" Type="String" /> <asp:Parameter Name="WebSite" Type="String" /> <asp:Parameter Name="Note" Type="String" /> <asp:Parameter Name="Groups" Type="String" /> <asp:Parameter Name="InterPhoneHome" Type="Int32" /> <asp:Parameter Name="InterMobileHome" Type="Int32" /> <asp:Parameter Name="InterFaxHome" Type="Int32" /> <asp:Parameter Name="InterPhoneWork" Type="Int32" /> <asp:Parameter Name="InterMobileWork" Type="Int32" /> <asp:Parameter Name="InterFaxWork" Type="Int32" /> <asp:Parameter Name="rdoPhoneHome" Type="Int32" /> <asp:Parameter Name="rdoMobileHome" Type="Int32" /> <asp:Parameter Name="rdoEmailHome" Type="Int32" /> <asp:Parameter Name="rdoPhoneWork" Type="Int32" /> <asp:Parameter Name="rdoMobileWork" Type="Int32" /> <asp:Parameter Name="rdoEmailWork" Type="Int32" /> <asp:Parameter Name="locationHome" Type="Int32" /> <asp:Parameter Name="locationWork" Type="Int32" /> </InsertParameters> </asp:ObjectDataSource> <asp:TextBox ID="txtSearch" runat="server" style="position:absolute; top: 560px; left: 170px;" ></asp:TextBox> <asp:Button ID="btnSearch" runat="server" Text="Search" style="position:absolute; top: 555px; left: 375px;" CausesValidation="False" onclick="btnSearch_Click"/> <asp:Label ID="Label7" runat="server" Style="position: absolute; top: 630px; left: 85px;" Text="First Name"></asp:Label> <asp:TextBox ID="txtFirstName" runat="server" Style="top: 630px; left: 185px; position: absolute; height: 22px; width: 128px"></asp:TextBox> <asp:Button ID="submit" runat="server" Text="submit" /> </div> </asp:Content>

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  • How to associate jquery validation with only one button if there are many?

    - by Eyla
    Greetings, In my current project, I have gridview, search button, text box for search, text box, and submit button. -I should input string in the search box then click search button. -when click search button, it will retrieve all matches records then bind them to the view grid. -then when I click a record in the gridview, it should bound a field to the second text box. finally I should submit the page by clicking in submit button. where is the problem: -the problme that I'm using jquery validation plugin that will make second text box is required. -when I click search button will not allow postback until I write some thing in second text box. How can I make scond text box only do validation for required field only when click asp.net submit button. here is my code: <%@ Page Title="" Language="C#" MasterPageFile="~/Master.Master" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="IMAM_APPLICATION.WebForm1" %> <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %> <asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="server"> <script src="js/jquery-1.4.1-vsdoc.js" type="text/javascript"></script> <script src="js/jquery.validate.js" type="text/javascript"></script> <script src="js/js.js" type="text/javascript"></script> <script type="text/javascript"> $(document).ready(function() { $("#aspnetForm").validate({ // debug: true, rules: { "<%=txtFirstName.UniqueID %>": { required: true } }, errorElement: "mydiv", wrapper: "mydiv", // a wrapper around the error message errorPlacement: function(error, element) { offset = element.offset(); error.insertBefore(element) error.addClass('message'); // add a class to the wrapper error.css('position', 'absolute'); error.css('left', offset.left + element.outerWidth()); error.css('top', offset.top - (element.height() / 2)); } }); }) </script> <div id="mydiv"> <asp:GridView ID="GridView1" runat="server" style="position:absolute; top: 280px; left: 30px; height: 240px; width: 915px;" PageSize="5" onselectedindexchanged="GridView1_SelectedIndexChanged" AutoGenerateColumns="False" DataKeyNames="idcontact_info"> <Columns> <asp:CommandField ShowSelectButton="True" InsertVisible="False" ShowCancelButton="False" /> <asp:BoundField DataField="First_Name" HeaderText="First Name" /> <asp:BoundField AccessibleHeaderText="Midle Name" DataField="Midle_Name" /> <asp:BoundField DataField="Last_Name" HeaderText="Last Name" /> <asp:BoundField DataField="Phone_home" HeaderText="Phone Home" /> <asp:BoundField DataField="cell_home" HeaderText="Mobile Home" /> <asp:BoundField DataField="phone_work" HeaderText="Phone Work" /> <asp:BoundField DataField="cell_Work" HeaderText="Mobile Work" /> <asp:BoundField DataField="Email_Home" HeaderText="Personal Home" /> <asp:BoundField DataField="Email_work" HeaderText="Work Email" /> </Columns> </asp:GridView> <asp:ObjectDataSource ID="ObjectDataSource1" runat="server" DeleteMethod="Delete" InsertMethod="Insert" OldValuesParameterFormatString="original_{0}" SelectMethod="GetData" TypeName="IMAM_APPLICATION.DSContactTableAdapters.contact_infoTableAdapter" UpdateMethod="Update"> <DeleteParameters> <asp:Parameter Name="Original_idcontact_info" Type="Int32" /> </DeleteParameters> <UpdateParameters> <asp:Parameter Name="Title" Type="String" /> <asp:Parameter Name="First_Name" Type="String" /> <asp:Parameter Name="Midle_Name" Type="String" /> <asp:Parameter Name="Last_Name" Type="String" /> <asp:Parameter Name="Address1_Home" Type="String" /> <asp:Parameter Name="Address2_Home" Type="String" /> <asp:Parameter Name="City_Home" Type="String" /> <asp:Parameter Name="State_Home" Type="String" /> <asp:Parameter Name="Prov_Home" Type="String" /> <asp:Parameter Name="ZipCode_Home" Type="String" /> <asp:Parameter Name="Country_Home" Type="String" /> <asp:Parameter Name="Phone_home" Type="String" /> <asp:Parameter Name="Phone_Home_Ext" Type="String" /> <asp:Parameter Name="Cell_home" Type="String" /> <asp:Parameter Name="Fax_home" Type="String" /> <asp:Parameter Name="Email_Home" Type="String" /> <asp:Parameter Name="material_status" Type="String" /> <asp:Parameter Name="DateOfBrith" Type="String" /> <asp:Parameter Name="company" Type="String" /> <asp:Parameter Name="Work_Field" Type="String" /> <asp:Parameter Name="Occupation" Type="String" /> <asp:Parameter Name="sub_Occupation" Type="String" /> <asp:Parameter Name="Other" Type="String" /> <asp:Parameter Name="Address1_work" Type="String" /> <asp:Parameter Name="Address2_work" Type="String" /> <asp:Parameter Name="City_Work" Type="String" /> <asp:Parameter Name="State_Work" Type="String" /> <asp:Parameter Name="Prov_Work" Type="String" /> <asp:Parameter Name="ZipCode_Work" Type="String" /> <asp:Parameter Name="Country_Work" Type="String" /> <asp:Parameter Name="Phone_Work" Type="String" /> <asp:Parameter Name="Phone_Work_Ext" Type="String" /> <asp:Parameter Name="Cell_Work" Type="String" /> <asp:Parameter Name="Fax_Work" Type="String" /> <asp:Parameter Name="Email_work" Type="String" /> <asp:Parameter Name="WebSite" Type="String" /> <asp:Parameter Name="Note" Type="String" /> <asp:Parameter Name="Groups" Type="String" /> <asp:Parameter Name="InterPhoneHome" Type="Int32" /> <asp:Parameter Name="InterMobileHome" Type="Int32" /> <asp:Parameter Name="InterFaxHome" Type="Int32" /> <asp:Parameter Name="InterPhoneWork" Type="Int32" /> <asp:Parameter Name="InterMobileWork" Type="Int32" /> <asp:Parameter Name="InterFaxWork" Type="Int32" /> <asp:Parameter Name="rdoPhoneHome" Type="Int32" /> <asp:Parameter Name="rdoMobileHome" Type="Int32" /> <asp:Parameter Name="rdoEmailHome" Type="Int32" /> <asp:Parameter Name="rdoPhoneWork" Type="Int32" /> <asp:Parameter Name="rdoMobileWork" Type="Int32" /> <asp:Parameter Name="rdoEmailWork" Type="Int32" /> <asp:Parameter Name="locationHome" Type="Int32" /> <asp:Parameter Name="locationWork" Type="Int32" /> <asp:Parameter Name="Original_idcontact_info" Type="Int32" /> </UpdateParameters> <InsertParameters> <asp:Parameter Name="Title" Type="String" /> <asp:Parameter Name="First_Name" Type="String" /> <asp:Parameter Name="Midle_Name" Type="String" /> <asp:Parameter Name="Last_Name" Type="String" /> <asp:Parameter Name="Address1_Home" Type="String" /> <asp:Parameter Name="Address2_Home" Type="String" /> <asp:Parameter Name="City_Home" Type="String" /> <asp:Parameter Name="State_Home" Type="String" /> <asp:Parameter Name="Prov_Home" Type="String" /> <asp:Parameter Name="ZipCode_Home" Type="String" /> <asp:Parameter Name="Country_Home" Type="String" /> <asp:Parameter Name="Phone_home" Type="String" /> <asp:Parameter Name="Phone_Home_Ext" Type="String" /> <asp:Parameter Name="Cell_home" Type="String" /> <asp:Parameter Name="Fax_home" Type="String" /> <asp:Parameter Name="Email_Home" Type="String" /> <asp:Parameter Name="material_status" Type="String" /> <asp:Parameter Name="DateOfBrith" Type="String" /> <asp:Parameter Name="company" Type="String" /> <asp:Parameter Name="Work_Field" Type="String" /> <asp:Parameter Name="Occupation" Type="String" /> <asp:Parameter Name="sub_Occupation" Type="String" /> <asp:Parameter Name="Other" Type="String" /> <asp:Parameter Name="Address1_work" Type="String" /> <asp:Parameter Name="Address2_work" Type="String" /> <asp:Parameter Name="City_Work" Type="String" /> <asp:Parameter Name="State_Work" Type="String" /> <asp:Parameter Name="Prov_Work" Type="String" /> <asp:Parameter Name="ZipCode_Work" Type="String" /> <asp:Parameter Name="Country_Work" Type="String" /> <asp:Parameter Name="Phone_Work" Type="String" /> <asp:Parameter Name="Phone_Work_Ext" Type="String" /> <asp:Parameter Name="Cell_Work" Type="String" /> <asp:Parameter Name="Fax_Work" Type="String" /> <asp:Parameter Name="Email_work" Type="String" /> <asp:Parameter Name="WebSite" Type="String" /> <asp:Parameter Name="Note" Type="String" /> <asp:Parameter Name="Groups" Type="String" /> <asp:Parameter Name="InterPhoneHome" Type="Int32" /> <asp:Parameter Name="InterMobileHome" Type="Int32" /> <asp:Parameter Name="InterFaxHome" Type="Int32" /> <asp:Parameter Name="InterPhoneWork" Type="Int32" /> <asp:Parameter Name="InterMobileWork" Type="Int32" /> <asp:Parameter Name="InterFaxWork" Type="Int32" /> <asp:Parameter Name="rdoPhoneHome" Type="Int32" /> <asp:Parameter Name="rdoMobileHome" Type="Int32" /> <asp:Parameter Name="rdoEmailHome" Type="Int32" /> <asp:Parameter Name="rdoPhoneWork" Type="Int32" /> <asp:Parameter Name="rdoMobileWork" Type="Int32" /> <asp:Parameter Name="rdoEmailWork" Type="Int32" /> <asp:Parameter Name="locationHome" Type="Int32" /> <asp:Parameter Name="locationWork" Type="Int32" /> </InsertParameters> </asp:ObjectDataSource> <asp:TextBox ID="txtSearch" runat="server" style="position:absolute; top: 560px; left: 170px;" ></asp:TextBox> <asp:Button ID="btnSearch" runat="server" Text="Search" style="position:absolute; top: 555px; left: 375px;" CausesValidation="False" onclick="btnSearch_Click"/> <asp:Label ID="Label7" runat="server" Style="position: absolute; top: 630px; left: 85px;" Text="First Name"></asp:Label> <asp:TextBox ID="txtFirstName" runat="server" Style="top: 630px; left: 185px; position: absolute; height: 22px; width: 128px"></asp:TextBox> <asp:Button ID="submit" runat="server" Text="submit" /> </div> </asp:Content>

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  • C++, using stack.h read a string, then display it in reverse

    - by user1675108
    For my current assignment, I have to use the following header file, #ifndef STACK_H #define STACK_H template <class T, int n> class STACK { private: T a[n]; int counter; public: void MakeStack() { counter = 0; } bool FullStack() { return (counter == n) ? true : false ; } bool EmptyStack() { return (counter == 0) ? true : false ; } void PushStack(T x) { a[counter] = x; counter++; } T PopStack() { counter--; return a[counter]; } }; #endif To write a program that will take a sentence, store it into the "stack", and then display it in reverse, and I have to allow the user to repeat this process as much as they want. The thing is, I am NOT allowed to use arrays (otherwise I wouldn't need help with this), and am finding myself stumped. To give an idea of what I am attempting, here is my code as of posting, which obviously does not work fully but is simply meant to give an idea of the assignment. #include <iostream> #include <cstring> #include <ctime> #include "STACK.h" using namespace std; int main(void) { auto time_t a; auto STACK<char, 256> s; auto string curStr; auto int i; // Displays the current time and date time(&a); cout << "Today is " << ctime(&a) << endl; s.MakeStack(); cin >> curStr; i = 0; do { s.PushStack(curStr[i]); i++; } while (s.FullStack() == false); do { cout << s.PopStack(); } while (s.EmptyStack() == false); return 0; } // end of "main" **UPDATE This is my code currently #include <iostream> #include <string> #include <ctime> #include "STACK.h" using namespace std; time_t a; STACK<char, 256> s; string curStr; int i; int n; // Displays the current time and date time(&a); cout << "Today is " << ctime(&a) << endl; s.MakeStack(); getline(cin, curStr); i = 0; n = curStr.size(); do { s.PushStack(curStr[i++]); i++; }while(i < n); do { cout << s.PopStack(); }while( !(s.EmptyStack()) ); return 0;

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  • Custom string class (C++)

    - by Sanctus2099
    Hey guys. I'm trying to write my own C++ String class for educational and need purposes. The first thing is that I don't know that much about operators and that's why I want to learn them. I started writing my class but when I run it it blocks the program but does not do any crash. Take a look at the following code please before reading further: class CString { private: char* cstr; public: CString(); CString(char* str); CString(CString& str); ~CString(); operator char*(); operator const char*(); CString operator+(const CString& q)const; CString operator=(const CString& q); }; First of all I'm not so sure I declared everything right. I tried googleing about it but all the tutorials about overloading explain the basic ideea which is very simple but lack to explain how and when each thing is called. For instance in my = operator the program calls CString(CString& str); but I have no ideea why. I have also attached the cpp file below: CString::CString() { cstr=0; } CString::CString(char *str) { cstr=new char[strlen(str)]; strcpy(cstr,str); } CString::CString(CString& q) { if(this==&q) return; cstr = new char[strlen(q.cstr)+1]; strcpy(cstr,q.cstr); } CString::~CString() { if(cstr) delete[] cstr; } CString::operator char*() { return cstr; } CString::operator const char* () { return cstr; } CString CString::operator +(const CString &q) const { CString s; s.cstr = new char[strlen(cstr)+strlen(q.cstr)+1]; strcpy(s.cstr,cstr); strcat(s.cstr,q.cstr); return s; } CString CString::operator =(const CString &q) { if(this!=&q) { if(cstr) delete[] cstr; cstr = new char[strlen(q.cstr)+1]; strcpy(cstr,q.cstr); } return *this; } For testing I used a code just as simple as this CString a = CString("Hello") + CString(" World"); printf(a); I tried debugging it but at a point I get lost. First it calls the constructor 2 times for "hello" and for " world". Then it get's in the + operator which is fine. Then it calls the constructor for the empty string. After that it get's into "CString(CString& str)" and now I'm lost. Why is this happening? After this I noticed my string containing "Hello World" is in the destructor (a few times in a row). Again I'm very puzzeled. After converting again from char* to Cstring and back and forth it stops. It never get's into the = operator but neither does it go further. printf(a) is never reached. I use VisualStudio 2010 for this but it's basically just standard c++ code and thus I don't think it should make that much of a difference

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  • if string is alphabetically greater than other string in objective

    - by Jonathan
    I'm trying to use an if statement to work out which of 2 strings comes first alphabetically. Like with numbers and greater and less than: if (1 < 2) { just with strings: if(@"ahello" < @"bhello") { Or would I have to have a string containing all the letters and then check the index of the first char in each string and see which index is greater, and the index that is less than the other comes first in the alphabet and then if they are equal move on to the next char and repeat?

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  • string or nsstring with string

    - by joels
    Lets assume myProp is @property (retain) NSString * myProp and synthesized for us.... self.myProp = @"some value";//string literal? self.myProp = [NSString stringWithString:@"some value"]; Is there a difference here? Is the first one a string literal that doesnt get autoreleased or is it just in memory for it's current scope and I dont have to worry about it?

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  • C# Linq - Cannot implicitly convert IEnumerable<string> to List<string>

    - by JL
    I have a List defined like this : public List<string> AttachmentURLS; I am adding items to the list like this: instruction.AttachmentURLS = curItem.Attributes["ows_Attachments"].Value.Split(';').ToList().Where(Attachment => !String.IsNullOrEmpty(Attachment)); But I am getting this error: Cannot implicitly convert IEnumerable to List What am I doing wrong?

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  • Ruby String accent error: More than meet the eyes

    - by Fabiano PS
    I'm having a real trouble to get accents right, and I believe this may happen to most Latin languages, in my case, portuguese I have a string that come as parameter and I must get the first letter and upcase it! That should be trivial in ruby, but here is the catch: s1 = 'alow'; s1.size #=> 4 s2 = 'álow'; s2.size #=> 5 s1[0,1] #=> "a" s2[0,1] #=> "\303" s1[0,1].upcase #=> 'A' s2[0,1].upcase #=> '\303' !!! s1[0,1].upcase + s1[1,100] #=> "Alow" OK s2[0,1].upcase + s2[1,100] #=> "álow" NOT OK I'd like to make it generic, Any help? [EDIT] I found that Rails Strings can be cast to Multibytes as seen in class ../active_support/core_ext/string/multibyte.rb, just using: s2.mb_chars[0,1].upcase.to_s #=> "Á" Still, @nsdk approach is easier to use =)

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  • comparison between string literal

    - by wiso
    This very simple code: #include <iostream> using namespace std; void exec(char* option) { cout << "option is " << option << endl; if (option == "foo") cout << "option foo"; else if (option == "bar") cout << "opzion bar"; else cout << "???"; cout << endl; } int main() { char opt[] = "foo"; exec(opt); return 0; } generate two warning: comparison with string literal results in unspecified behaviour. Can you explain why exactly this code doesn't work, but if I change char opt[] to char *opt it works, but generates the warning? Is it related to the \0 termination? What is the difference between the two declaration of opt? What if I use const qualifier? The solution is to use std::string?

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  • Approximate string matching with a letter confusion matrix?

    - by zigglenaut
    I'm trying to model a phonetic recognizer that has to isolate instances of words (strings of phones) out of a long stream of phones that doesn't have gaps between each word. The stream of phones may have been poorly recognized, with letter substitutions/insertions/deletions, so I will have to do approximate string matching. However, I want the matching to be phonetically-motivated, e.g. "m" and "n" are phonetically similar, so the substitution cost of "m" for "n" should be small, compared to say, "m" and "k". So, if I'm searching for [mein] "main", it would match the letter sequence [meim] "maim" with, say, cost 0.1, whereas it would match the letter sequence [meik] "make" with, say, cost 0.7. Similarly, there are differing costs for inserting or deleting each letter. I can supply a confusion matrix that, for each letter pair (x,y), gives the cost of substituting x with y, where x and y are any letter or the empty string. I know that there are tools available that do approximate matching such as agrep, but as far as I can tell, they do not take a confusion matrix as input. That is, the cost of any insertion/substitution/deletion = 1. My question is, are there any open-source tools already available that can do approximate matching with confusion matrices, and if not, what is a good algorithm that I can implement to accomplish this?

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  • ASP.NET MVC Map String Url To A Route Value Object

    - by mwgriffiths
    I am creating a modular ASP.NET MVC application using areas. In short, I have created a greedy route that captures all routes beginning with {application}/{*catchAll}. Here is the action: // get /application/index public ActionResult Index(string application, object catchAll) { // forward to partial request to return partial view ViewData["partialRequest"] = new PartialRequest(catchAll); // this gets called in the view page and uses a partial request class to return a partial view } Example: The Url "/Application/Accounts/LogOn" will then cause the Index action to pass "/Accounts/LogOn" into the PartialRequest, but as a string value. // partial request constructor public PartialRequest(object routeValues) { RouteValueDictionary = new RouteValueDictionary(routeValues); } In this case, the route value dictionary will not return any values for the routeData, whereas if I specify a route in the Index Action: ViewData["partialRequest"] = new PartialRequest(new { controller = "accounts", action = "logon" }); It works, and the routeData values contains a "controller" key and an "action" key; whereas before, the keys are empty, and therefore the rest of the class wont work. So my question is, how can I convert the "/Accounts/LogOn" in the catchAll to "new { controller = "accounts", action = "logon" }"?? If this is not clear, I will explain more! :) Matt This is the "closest" I have got, but it obviously wont work for complex routes: // split values into array var routeParts = catchAll.ToString().Split(new char[] { '/' }, StringSplitOptions.RemoveEmptyEntries); // feels like a hack catchAll = new { controller = routeParts[0], action = routeParts[1] };

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  • SQL select row into a string variable without knowing columns

    - by Brandi
    Hello, I am new to writing SQL and would greatly appreciate help on this problem. :) I am trying to select an entire row into a string, preferably separated by a space or a comma. I would like to accomplish this in a generic way, without having to know specifics about the columns in the tables. What I would love to do is this: DECLARE @MyStringVar NVARCHAR(MAX) = '' @MyStringVar = SELECT * FROM MyTable WHERE ID = @ID AS STRING But what I ended up doing was this: DECLARE @MyStringVar = '' DECLARE @SecificField1 INT DECLARE @SpecificField2 NVARCHAR(255) DECLARE @SpecificField3 NVARCHAR(1000) ... SELECT @SpecificField1 = Field1, @SpecificField2 = Field2, @SpecificField3 = Field3 FROM MyTable WHERE ID = @ID SELECT @StringBuilder = @StringBuilder + CONVERT(nvarchar(10), @Field1) + ' ' + @Field2 + ' ' + @Field3 Yuck. :( I have seen some people post stuff about the COALESCE function, but again, I haven't seen anyone use it without specific column names. Also, I was thinking, perhaps there is a way to use the column names dynamically getting them by: SELECT [COLUMN_NAME] FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'MyTable' It really doesn't seem like this should be so complicated. :( What I did works for now, but thanks ahead of time to anyone who can point me to a better solution. :) EDIT: Got it fixed, thanks to everyone who answered. :)

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