C:\...\PP4E\Internet\Web\cgi-bin> python languages.py All
Content-type: text/html<TITLE>Languages</TITLE>
<H1>Syntax</H1><HR>
<H3>C</H3><P><PRE>
printf("Hello World\n");
</PRE></P><BR>
<H3>Java</H3><P><PRE>
System.out.println("Hello World");
</PRE></P><BR>
<H3>C++</H3><P><PRE>
cout << "Hello World" << endl;
</PRE></P><BR>
<H3>Perl</H3><P><PRE>
print "Hello World\n";
</PRE></P><BR>
<H3>Fortran</H3><P><PRE>
print *, 'Hello World'
</PRE></P><BR>
<H3>Basic</H3><P><PRE>
10 PRINT "Hello World"
</PRE></P><BR>
<H3>Scheme</H3><P><PRE>
(display "Hello World") (newline)
</PRE></P><BR>
<H3>SmallTalk</H3><P><PRE>
'Hello World' print.
</PRE></P><BR>
<H3>Python</H3><P><PRE>
print('Hello World')
</PRE></P><BR>
<H3>Pascal</H3><P><PRE>
WriteLn('Hello World');
</PRE></P><BR>
<H3>Tcl</H3><P><PRE>
puts "Hello World"
</PRE></P><BR>
<H3>Python2</H3><P><PRE>
print 'Hello World'
</PRE></P><BR>
<HR>Each language is represented here with the same code pattern—the showHello function
is called for each table entry, along with a mocked-up form object. Notice the way that
C++ code is escaped for embedding inside the HTML stream; this is the cgi.escape
call’s handiwork. Your web browser translates the < escapes to < characters when
the page is rendered. When viewed with a browser, the “All” response page is rendered
as shown in Figure 15-23; the order in which languages are listed is pseudorandom,
because the dictionary used to record them is not a sequence.
The Hello World Selector | 1189