Content deleted Content added
→Procedural Example: Amplified comments in module definition |
→Packages and modules: Add comments in invocation example; amplified commentary |
||
Line 321:
This module, and its functionality, would commonly be invoked as follows:
<source lang="perl">
use CGI (':standard'); # imports many functions, including b()
...
print b('Hello, world'); # outputs <b>Hello, world</b>
Line 327:
A 'missing' subroutine ''could'' be added from the using program's namespace.
<source lang="perl">
sub CGI::bi { # define target namespace (CGI) and sub name (bi)
return b(i($_[0]));
}
Line 335:
print CGI::bi('Hello, world'); # outputs <b><i>Hello, world</i></b>
</source>
However, though technically feasible, that would be somewhat dubious programming practice. You might just as well define the sub in the calling namespace, and call it from that namespace.▼
▲However, though technically feasible, that would be somewhat dubious programming practice.
== Further reading ==
| |||