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add lua page example with the form submitting

Mikhail Nikalyukin 12 years ago
parent
a58bb71c19
commit
5ce1fc3c2a
2 changed files with 50 additions and 2 deletions
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  1. 8 2
      UserManual.md
  2. 42 0
      examples/lua/prime_numbers.lp

+ 8 - 2
UserManual.md
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@@ -307,8 +307,9 @@ like request method, all headers, etcetera. Please refer to
 
 `struct mg_request_info` definition in
 
 [mongoose.h](https://github.com/valenok/mongoose/blob/master/mongoose.h)
 
 to see what kind of information is present in `request_info` object. Also,
 
-[page.lp](https://github.com/valenok/mongoose/blob/master/test/page.lp)
 
-contains some example code that uses `request_info`.
 
+[page.lp](https://github.com/valenok/mongoose/blob/master/test/page.lp) and
 
+[prime_numbers.lp]()https://github.com/valenok/mongoose/blob/master/examples/lua/prime_numbers.lp
 
+contains some example code that uses `request_info` and other functions(form submitting for example).
 
 
 
 One substantial difference of mongoose's Lua Pages and PHP is that Mongoose
 
@@ -323,6 +324,11 @@ It is easy to do things like redirects, for example:
 
 
     <? print('HTTP/1.0 302 Found\r\nLocation: http://google.com\r\n\r\n') ?>
 
 
+To serve Lua Page, mongoose creates Lua context. That context is used for
 
+all Lua blocks within the page. That means, all Lua blocks on the same page
 
+share the same context. If one block defines a variable, for example, that
 
+variable is visible in the block that follows.
 
+
 
 # Common Problems
 
 - PHP doesn't work - getting empty page, or 'File not found' error. The
 
   reason for that is wrong paths to the interpreter. Remember that with PHP,

+ 42 - 0
examples/lua/prime_numbers.lp
View File 

@@ -0,0 +1,42 @@
 
+<?
 
+  -- Lua server pages have full control over the output, including HTTP
 
+  -- headers they send to the client. Send HTTP headers:
 
+  print('HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n')
 
+?>
 
+
 
+<html>
 
+  <p>Prime numbers from 0 to 100, calculated by Lua:</p>
 
+ <?
 
+    function is_prime(n)
 
+      if n <= 0 then return false end
 
+      if n <= 2 then return true end
 
+      if (n % 2 == 0) then return false end
 
+      for i = 3, n / 2, 2 do
 
+        if (n % i == 0) then return false end
 
+      end
 
+      return true
 
+    end
 
+
 
+    for i = 1, 100 do
 
+      if is_prime(i) then print('<span>' .. i .. '</span>&nbsp;') end
 
+    end
 
+
 
+ ?>
 
+
 
+ <p>Reading POST data from Lua (click submit):</p>
 
+ <form method="POST" ><input type="text" name="t1"/><input type="submit"></form>
 
+
 
+ <pre>
 
+   POST data: [<?  print(read())?>]
 
+   request method: [<? print(request_info.request_method) ?>]
 
+   IP/port: [<? print(request_info.remote_ip, ':', request_info.remote_port) ?>]
 
+   URI: [<? print(request_info.uri) ?>]
 
+   HTTP version [<? print(request_info.http_version) ?>]
 
+   HEADERS:
 
+   <?
 
+     for name, value in pairs(request_info.http_headers) do
 
+       print(name, ':', value, '\n')
 
+     end
 
+   ?>
 
+</pre>
 
+</html>