Read `HELP IF` : _the `/I` switch, if specified, says to do case insensitive string compares.  The `/I` switch can also be used on the string1==string2 form
of IF._

So try `IF /I %SSL%==F ...`

I&#39;ve been following this tutorial - http://www.youtube.com/watch?v=R2hOvZ7bwXU, which explains how to use postMessage to securely pass a message between iframe and parent - you basically end up with something like this - http://html5demos.com/postmessage2

My problem is that I need it to work the opposite way round (child to parent) and don&#39;t know how to target the parent window.

this is my receiver code (in the parent):
      
    function handleMsg(e) {
		if(e.origin == &quot;http://uc.dialogue.net&quot;) {
			let blah = e.data;
			alert(blah);	
		} else {
			alert(&quot;error&quot;);
		}
	}
	addEventListener(&quot;message&quot;, handleMsg, true);


and this is the sender function that is triggered by a simple form (in child):

       let text = document.querySelector(&#39;.srchInput&#39;).value;
       window.parent.postMessage(text, &quot;http://uc.dialogue.net&quot;);   


Should I be targeting the parent in a different way?

Cheers
Paul





HTML5 - Cross Browser iframe postMessage - child to parent?

Is there any restriction in number of calls we make to facebook&#39;s graph api?
and If it is there then how many calls can we make per app daily?

What&#39;s the Facebook&#39;s Graph API call limit?

I have a set of variables I allow some people I work with to edit. These are True (`T`) and False (`F`) values, but I have some people that insist on putting `t` and `f` instead of the upper case values respectively. 

I use the following workaround code to properly set uppercase values:

    IF &#39;%dotnet35%&#39;==&#39;f&#39; set dotnet35=F
    IF &#39;%dotnet35%&#39;==&#39;t&#39; set dotnet35=T
    IF &#39;%dotnet40%&#39;==&#39;f&#39; set dotnet40=F
    IF &#39;%dotnet40%&#39;==&#39;t&#39; set dotnet40=T
    IF &#39;%regedit%&#39;==&#39;f&#39; set regedit=F
    IF &#39;%regedit%&#39;==&#39;t&#39; set regedit=T
    IF &#39;%SSL%&#39;==&#39;f&#39; set SSL=F
    IF &#39;%SSL%&#39;==&#39;t&#39; set SSL=T

This is however extremely bulky and it&#39;s not easy on the eyes... is there any other way of doing this without using VBS or any other programming language?

Windows batch command to ignore case sensitivity in variables

I have a set of variables I allow some people I work with to edit. These are True (<code>T</code>) and False (<code>F</code>) values, but I have some people that insist on putting <code>t</code> and <code>f</code> instead of the upper case values respectively.
I use the following workaround code to properly set uppercase values:
<pre><code class="hljs language-ini">IF '%dotnet35%'=='f' set dotnet35=F
IF '%dotnet35%'=='t' set dotnet35=T
IF '%dotnet40%'=='f' set dotnet40=F
IF '%dotnet40%'=='t' set dotnet40=T
IF '%regedit%'=='f' set regedit=F
IF '%regedit%'=='t' set regedit=T
IF '%SSL%'=='f' set SSL=F
IF '%SSL%'=='t' set SSL=T
</code></pre>
This is however extremely bulky and it's not easy on the eyes... is there any other way of doing this without using VBS or any other programming language?

What is the meaning of a bash variable used like this:

     ${Server?}



What is the meaning of a question mark in bash variable parameter expansion as in ${var?}?

What is the difference between class and instance variables in Python?

    class Complex:
        a = 1

and

    class Complex:
        def __init__(self):
            self.a = 1

Using the call: `x = Complex().a` in both cases assigns x to 1.

A more in-depth answer about `__init__()` and `self` will be appreciated.

What is the difference between class and instance variables?

Related: [Strings as variable references in R](https://stackoverflow.com/questions/3770589/strings-as-variable-references-in-r)  
Possibly related: [Concatenate expressions to subset a dataframe](https://stackoverflow.com/questions/5531238/concatenate-expressions-to-subset-a-dataframe)

---

I&#39;ve simplified the question per the comment request. Here goes with some example data.
    
    dat &lt;- data.frame(num=1:10,sq=(1:10)^2,cu=(1:10)^3)
    set1 &lt;- subset(dat,num&gt;5)
    set2 &lt;- subset(dat,num&lt;=5)
    
Now, I&#39;d like to make a bubble plot from these. I have a more complicated data set with 3+ colors and complicated subsets, but I do something like this:

    symbols(set1$sq,set1$cu,circles=set1$num,bg=&quot;red&quot;)
    symbols(set2$sq,set2$cu,circles=set2$num,bg=&quot;blue&quot;,add=T)

I&#39;d like to do a for loop like this:

    colors &lt;- c(&quot;red&quot;,&quot;blue&quot;)
    sets &lt;- c(&quot;set1&quot;,&quot;set2&quot;)
    vars &lt;- c(&quot;sq&quot;,&quot;cu&quot;,&quot;num&quot;)

    for (i in 1:length(sets)) {
       symbols(sets[[i]][,sq],sets[[i]][,cu],circles=sets[[i]][,num],
       bg=colors[[i]],add=T)
    }    

I know you can have a variable evaluated to specify the column (like `var=&quot;cu&quot;; set1[,var]`; I want to know how to get a variable to specify the data.frame itself (and another to evaluate the column).

---

**Update:** Ran across [this post](http://www.r-bloggers.com/converting-a-string-to-a-variable-name-on-the-fly-and-vice-versa-in-r/) on r-bloggers which has this example:

    x &lt;- 42
    eval(parse(text = &quot;x&quot;))
    [1] 42

I&#39;m able to do something like this now:

    eval(parse(text=paste(set[[1]],&quot;$&quot;,var1,sep=&quot;&quot;)))

In fiddling with this, I&#39;m finding it interesting that the following are not equivalent:

    vars &lt;- data.frame(&quot;var1&quot;,&quot;var2&quot;)
    eval(parse(text=paste(set[[1]],&quot;$&quot;,var1,sep=&quot;&quot;)))
    eval(parse(text=paste(set[[1]],&quot;[,vars[[1]]]&quot;,sep=&quot;&quot;)))

I actually have to do this:

    eval(parse(text=paste(set[[1]],&quot;[,as.character(vars[[1]])]&quot;,sep=&quot;&quot;)))

**Update2:** The above works to output values... but not in trying to plot. I can&#39;t do:

    for (i in 1:length(set)) {
    symbols(eval(parse(text=paste(set[[i]],&quot;$&quot;,var1,sep=&quot;&quot;))),
           eval(parse(text=paste(set[[i]],&quot;$&quot;,var2,sep=&quot;&quot;))),
           circles=paste(set[[i]],&quot;.&quot;,&quot;circles&quot;,sep=&quot;&quot;),
           fg=&quot;white&quot;,bg=colors[[i]],add=T)
    }

I get `invalid symbol coordinates`. I checked the class of set[[1]] and it&#39;s a factor. If I do `is.numeric(as.numeric(set[[1]]))` I get `TRUE`. Even if I add that above prior to the `eval` statement, I still get the error. Oddly, though, I can do this:

    set.xvars &lt;- as.numeric(eval(parse(text=paste(set[[i]],&quot;$&quot;,var1,sep=&quot;&quot;))))
    set.yvars &lt;- as.numeric(eval(parse(text=paste(set[[i]],&quot;$&quot;,var2,sep=&quot;&quot;))))
    symbols(xvars,yvars,circles=data$var3)

Why different behavior when stored as a variable vs. executed within the symbol function?

Getting strings recognized as variable names in R

In `.vimrc`, there are several lines that look like:

    let g:SuperTabDefaultCompletionType=&quot;&lt;c-x&gt;&lt;c-o&gt;&quot;

How do I inspect them inside Vim? Something to this effect:

    :echom &amp;g:SuperTabDefaultCompletionType

But that command results in an error:

    E113: Unknown option: SuperTabDefaultCompletionType
    E15: Invalid expression: &amp;g:SuperTabDefaultCompletionType

How do I inspect these kinds of variables in Vim? Some plugins set some defaults which I need to inspect.

How do I inspect Vim variables?

I&#39;m trying to use dynamic variable names (I&#39;m not sure what they&#39;re actually called) But pretty much like this:

    for($i=0; $i&lt;=2; $i++) {
        $(&quot;file&quot; . $i) = file($filelist[$i]);
    }
    
    var_dump($file0);

The return is `null` which tells me it&#39;s not working. I have no idea what the syntax or the technique I&#39;m looking for is here, which makes it hard to research. `$filelist` is defined earlier on.

Using braces with dynamic variable names in PHP

Can a Windows batch file determine its own file name?

For example, if I run the batch file C:\Temp\myScript.bat, is there a command within myScript.bat that can determine the string &quot;myScript.bat&quot;?

Can a Windows batch file determine its own file name?

I turned off echo in bat file.

    @echo off

then I do something like this

    ...
    echo %INSTALL_PATH%
    if exist %INSTALL_PATH%(
    echo 222
    ...
    )

and I get:

&gt;The system cannot find the path specified.

message between those two echos.

What can be the reason of this message and why message ignores echo off?


Echo off but messages are displayed

The Windows FINDSTR command is horribly documented. There is very basic command line help available through `FINDSTR /?`, or `HELP FINDSTR`, but it is woefully inadequate. There is a wee bit more documentation online at https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/findstr.

There are many FINDSTR features and limitations that are not even hinted at in the documentation. Nor could they be anticipated without prior knowledge and/or careful experimentation.

So the question is - **What are the undocumented FINDSTR features and limitations?**

The purpose of this question is to provide a one stop repository of the many undocumented features so that:

A) Developers can take full advantage of the features that are there.

B) Developers don&#39;t waste their time wondering why something doesn&#39;t work when it seems like it should.

Please make sure you know the existing documentation before responding. If the information is covered by the HELP, then it does not belong here.

Neither is this a place to show interesting uses of FINDSTR. If a logical person could anticipate the behavior of a particular usage of FINDSTR based on the documentation, then it does not belong here.

Along the same lines, if a logical person could anticipate the behavior of a particular usage based on information contained in any existing answers, then again, it does not belong here.


What are the undocumented features and limitations of the Windows FINDSTR command?

In Unix, we can put multiple commands in a single line like this:

    $ date ; ls -l ; date

I tried a similar thing in Windows:

     &gt; echo %TIME% ; dir ; echo %TIME

But it printed the time and doesn&#39;t execute the command `dir`.

How can I achieve this?


Multiple commands on a single line in a Windows batch file

I am trying to run a batch file from a network share, but I keep getting the following message:  &quot;UNC path are not supported. Defaulting to Windows directory.&quot;  The batch file is located on `\\Server\Soft\WPX5\install.bat`.  While logged in as administrator, from my Windows 7 Desktop, I navigate to `\\Server\Soft\WP15\` and double click on install.bat, that&#39;s when I get the &quot;UNC path are not supported.&quot; message.  I found some suggestions online stating that mapping drive will not work, but using a symbolic link will solve this issue, but the symbolic link didn&#39;t work for me. Below is my batch file content, I would appreciate any assistance that can help me accomplish what I am trying to do. Basically, I want to be able to run the batch file from `\\Server\Soft\WP15\install.bat`.

**Batch file content**

    mklink /d %userprofile%\Desktop\WP15 \\server\soft\WP15
    \\server\soft\WP15\setup.exe
    robocopy.exe &quot;\\server\soft\WP15\Custom&quot; /copyall &quot;C:\Program Files (x86)\WP\Custom Templates&quot;
    Regedit.exe /s \\server\soft\WPX5\Custom\Migrate.reg

Also, how do I remove the symbolic link after the install is completed?

How to run batch file from network share without &quot;UNC path are not supported&quot; message?

I&#39;ve run into a problem with git. Basically I set to false `core.ignorecase` because I wanted to change the case of the names of some folders (since I&#39;m under OSX with a case-insensitive filesystem, the changes weren&#39;t shown otherwise). When I pulled my data, I&#39;ve noticed that now every renamed folder appears twice on the repository, with both the old and the new name. I don&#39;t know what to do to remove the old folders since they don&#39;t appear locally (I&#39;ve try to set `core.ignorecase` to true again but it isn&#39;t helping).

Case sensitivity in Git

I have the following:

&lt;!-- language: lang-js --&gt;

    if (referrer.indexOf(&quot;Ral&quot;) == -1) { ... }

What I like to do is to make `Ral` case insensitive, so that it can be `RAl`, `rAl`, etc. and still match.

Is there a way to say that `Ral` has to be case-insensitive? 

Contains case insensitive

I am trying to rename a file to have different capitalization from what it had before:

    git mv src/collision/b2AABB.js src/collision/B2AABB.js
    fatal: destination exists, source=src/collision/b2AABB.js, destination=src/collision/B2AABB.js

As you can see, Git throws a fit over this. I tried renaming using just the plain old `mv` command as well, but Git doesn&#39;t pick up the rename (as a rename *or* as a new untracked file).

How can I change a file to have a different capitalization of the same name? I am on Mac&amp;nbsp;OS&amp;nbsp;X&amp;nbsp;v10.7.3 (Lion) with Git 1.7.9.1 using [Z shell][1] (zsh) 4.3.15.

  [1]: https://en.wikipedia.org/wiki/Z_shell





Changing capitalization of filenames in Git

&gt; **Possible Duplicate:**  
&gt; [Mysql Like Case Sensitive](https://stackoverflow.com/questions/8083455/mysql-like-case-sensitive)  

&lt;!-- End of automatically inserted text --&gt;

Mysql ignores case for its LIKE comparisons.

How can you force it to perform case-sensitive LIKE comparisons?

How do you force mysql LIKE to be case sensitive?

In SQLite it is possible to change the case sensitive behaviour of &#39;LIKE&#39; by using the commands:

    PRAGMA case_sensitive_like=ON;
    PRAGMA case_sensitive_like=OFF;

However in my situation I would like to execute a query, part of which is case sensitive and part of which isn&#39;t. For example:

    SELECT * FROM mytable
    WHERE caseSensitiveField like &#39;test%&#39;
    AND caseInsensitiveField like &#39;g2%&#39;

Is this possible?


Case sensitive and insensitive like in SQLite

When doing a code review for a colleague today I saw a peculiar thing. He had surrounded his new code with curly braces like this:

    Constructor::Constructor()
    {
       existing code
 
       {
          New code: do some new fancy stuff here
       }

       existing code
    }

What is the outcome, if any, from this? What could be the reason for doing this? Where does this habit come from?

**Edit:**

Based on the input and some questions below I feel that I have to add some to the question, even though that I already marked an answer.

The environment is embedded devices. There is a lot of legacy C code wrapped in C++ clothing. There are a lot of C turned C++ developers.

There are no critical sections in this part of the code. I have only seen it in this part of the code. There are no major memory allocations done, just some flags that are set, and some bit twiddling.

The code that is surrounded by curly braces is something like:

    {
       bool isInit;
       (void)isStillInInitMode(&amp;isInit);
       if (isInit) {
         return isInit;
       }
    }

(Don&#39;t mind the code, just stick to the curly braces... ;) )
After the curly braces there are some more bit twiddling, state checking, and basic signaling.    

I talked to the guy and his motivation was to limit the scope of variables, naming clashes, and some other that I couldn&#39;t really pick up.

From my POV this seems rather strange and I don&#39;t think that the curly braces should be in our code. I saw some good examples in all the answers on why one could surround code with curly braces, but shouldn&#39;t you separate the code into methods instead?


Unnecessary curly braces in C++?

[The HTML5 documentation recommends][1] putting the `code` element inside the `pre` element, but I don&#39;t understand how this is better or more semantic than just using the code element and CSS. In their own example:

    &lt;pre&gt;&lt;code class=&quot;language-pascal&quot;&gt;var i: Integer;
    begin
       i := 1;
    end.&lt;/code&gt;&lt;/pre&gt;

Could also be written (Making some assumptions about the browser&#39;s defaults for `pre`):

    &lt;style&gt;
    code {
        display: block;
        white-space: pre;
    }
    &lt;/style&gt;
    …
    &lt;code class=&quot;language-pascal&quot;&gt;var i: Integer;
    begin
       i := 1;
    end.&lt;/code&gt;

  [1]: http://www.w3.org/TR/2011/WD-html5-author-20110809/the-code-element.html

Even if the `pre` is there to distinguish a code *block* from an inline string of code, I don&#39;t see it being a more semantic choice than specifying the *block-ness* of the `code` in a class.

Is there a specific reason the `pre` is recommended over a CSS solution?

Why does HTML5 recommend putting the code element inside pre?

How to auto-format code in Eclipse?

I have started developing with [Android Studio][1]. In Eclipse I was using &lt;kbd&gt;Ctrl&lt;/kbd&gt; + &lt;kbd&gt;Shift&lt;/kbd&gt; + &lt;kbd&gt;F&lt;/kbd&gt;, but in Android Studio it does not work. It will be different.

How can I jump to any method in a `.java` file? I was using &lt;kbd&gt;Ctrl&lt;/kbd&gt; + &lt;kbd&gt;O&lt;/kbd&gt; in Eclipse.

Is it available? What is the shortcut for code formatting?

  [1]: http://developer.android.com/sdk/installing/studio.html


Code formatting shortcuts in Android Studio for Operation Systems

I&#39;m facing problem with keeping proper order of XML attributes in Android Studio. As you can see below, the `style` attribute is between `layout_*` attributes, but I want it to be ordered by name (like in Eclipse). I&#39;m using standard Intellij code formatter and the Android Studio gives users ability to set your own rules regarding XML ordering. The settings are located in `Code Style -&gt; XML -&gt; Arrangement`, but it seems not to work or I&#39;m using it wrong. Any ideas how to order XML attributes by name using default code formatter?

    &lt;TestView xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
        android:layout_width=&quot;match_parent&quot;
        style=&quot;@style/BackgroundLight&quot;
        android:layout_height=&quot;wrap_content&quot;&gt;
    
    &lt;/TestView&gt;

Content Type	Original Author	Original Content on Stackoverflow
Question	rud3y	View Question on Stackoverflow
Solution 1 - Variables	PA.	View Answer on Stackoverflow

Windows batch command to ignore case sensitivity in variables

Variables Problem Overview

Variables Solutions

Solution 1 - Variables

What's the Facebook's Graph API call limit?

HTML5 - Cross Browser iframe postMessage - child to parent?

Attributions