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Equation (expression) parser with precedence?

...s this four function calculator: http://www.gnu.org/software/bison/manual/html_node/Infix-Calc.html Look at the generated code, and see that this is not as easy as it sounds. Also, the advantages of using a tool like Bison are 1) you learn something (especially if you read the Dragon book and lear...
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How Python web frameworks, WSGI and CGI fit together

...ontent that is produced. Compare this to static web serving, where a plain HTML file is basically delivered as is to the client. CGI, FastCGI and SCGI are language agnostic. You can write CGI scripts in Perl, Python, C, bash, whatever. CGI defines which executable will be called, based on the URL, ...
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How do I start my app on startup?

... Activities: developer.android.com/guide/topics/fundamentals/activities.html Services: developer.android.com/guide/topics/fundamentals/services.html To start your application when the phone actually starts up, you'll need to register the service as shown above, and then in there you can use sta...
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Uploading Files in ASP.net without using the FileUpload server control

...ver-side control, just like OP has described in the question. Client side HTML code: <form action="upload.aspx" method="post" enctype="multipart/form-data"> <input type="file" name="UploadedFile" /> </form> Page_Load method of upload.aspx : if(Request.Files["UploadedFile"]...
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Selecting text in an element (akin to highlighting with your mouse)

I would like to have users click a link, then it selects the HTML text in another element ( not an input). 16 Answers ...
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Converting newline formatting from Mac to Windows

...odes backslash-escapes in $'...' strings. See gnu.org/software/bash/manual/html_node/ANSI_002dC-Quoting.html for details. – jcsahnwaldt Reinstate Monica Jan 22 '19 at 1:41 ...
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Why can't I make a vector of references?

... Checking the assignable concept at boost.org/doc/libs/1_39_0/doc/html/Assignable.html all operations except the swap are valid on references. – amit Aug 18 '09 at 16:01 8...
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How to use regex with find command?

...License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Written by Eric B. Decker, James Youngman, and Kevin Dalley. Built using GNU gnulib version e5...
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The key must be an application-specific resource id

...to http://developer.android.com/guide/topics/resources/available-resources.html and http://developer.android.com/guide/topics/resources/more-resources.html for more information. My suggestion is that you create a new file called values/tags.xml and write: <resources xmlns:android="http://sc...
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How to change language settings in R

...d set the environment variable: stat.ethz.ch/R-manual/R-devel/library/base/html/EnvVar.html – Chase May 15 '15 at 4:22 add a comment  |  ...