Command <%...%> code section | Xbase++

Defines a code section

<% ... %> or
<%
 ...
%>

A <CXP/> file normally contains HTML tags, just like an HTML file. However, a <CXP/> file can also contain code sections surrounded by the tags <% and %>. These code sections are executed on the server and can be made up of any expression, statement, procedure, or class valid in the Xbase++ language.

Inside a code section, the ? command is used to write to the current output section. The following example writes the string "Hello World" into the body element of the document.

<html> 
<body> 
<% 
? "Hello World!" 
%> 
</body> 
</html>

The command ? internally uses the method ::HttpResponse:WriteStr(), which performs HTML-encoding and appends a CRLF-pair to the string. Data without a line break can be output using the command ??, which uses the ::HttpResponse:Write() method instead. To output the data as-is, without any encoding or line breaks, the method ::HttpResponse:WriteRaw() must be called directly.

<%...%>

<html> 
<head> 
<!-- Output the version data inside the title --> 
<!-- without a crlf pair                      --> 
<title>Greetings from <%??Version()%></title> 
<body> 
<% 

// This iteration repeats the output, adding 16 lines 
// of text to the resulting page 
FOR n := 1 TO 16 
  ? "<p style='background-color:#f5"+StrZero(n*6,2)+"20'>Hello world v2!</p>" 
NEXT n 
%> 
</body> 
</html>

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Command <%...%> code section Foundation