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CGI
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Using D in a CGI Environment I usually want my programs to be able to run in a web browser, ie you navigate an address to run the program and to use the arguments for execution. For example [[code]  http://localhost/cgi-bin/MyDProgram?page=12345&something=else&another=keepitup]To do this we use the std.c.stdlib library (borrowed from C) Some useful functions: [[code] static import std.c.stdlib; static import std.string; char[] queryString() { return std.string.toString(std.c.stdlib.getenv("{QUERY STRING}?")); } ] This function simply retrieved the Query String (in the example: "page=12345&something=else&another=keepitup") If you want to use it as a module, you could use the following functions to give yourself a global _GET array hash map as you have available in PHP: [[code] module jcgi; // static makes the std.c.stdlib REQUIRED static import std.c.stdlib; static import std.string; // global variable char[][char[]] _GET; // called when module is imported, initializes the hash map (_GET) static this() { // Output content type jcgi.print("Content-type: text/html\n\n"); // Initialize _GET array. _GET = jcgi.set_GET(); } // fetch query string char[] queryString() { return std.string.toString(std.c.stdlib.getenv("{QUERY STRING}?")); } // assign values to _GET hash map (associative array) char[][char[]] set_GET() { char[][char[]] ret; char[] q = std.string.strip(jcgi.queryString()); char[][] args = std.string.split(q, "&"); delete q; for(int i = 0; i < args.length; i++) { char[][] tmp = std.string.split(args[i], "="); ret[tmp[0]] = tmp[1]; delete tmp; } delete args; return ret; } ] If you were hoping to have some more functions that PHP does (for testing purposes or whatever), you could use the following simple ones: [[code] static import io = std.stdio; void print_r(char[][char[]] arr) { foreach(key, value; arr) io.writefln("%s => %s", key, value); } void print(char[] string) { io.writefln(string); } ] I am wondering if anyone has a function written that could take a string like "hello $name!" and turn it into "hello " ~ name ~ "!". Here is some simple stuff to get you started in using your D program in a web environment. |
Using D in a CGI Environment
I usually want my programs to be able to run in a web browser, ie you navigate an address to run the program and to use the arguments for execution. For example
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To do this we use the std.c.stdlib library (borrowed from C) Some useful functions:
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This function simply retrieved the Query String (in the example: "page=12345&something=else&another=keepitup")
If you want to use it as a module, you could use the following functions to give yourself a global _GET array hash map as you have available in PHP:
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If you were hoping to have some more functions that PHP does (for testing purposes or whatever), you could use the following simple ones:
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I am wondering if anyone has a function written that could take a string like "hello $name!" and turn it into "hello " ~ name ~ "!".
Here is some simple stuff to get you started in using your D program in a web environment.