I have a code that parses some template files and when it finds a placeholder, it replaces it with a value. Something like:
<html>
<head>
<title>%title%</title>
</head>
<body bgcolor="%color%">
...etc.
In code, the parser finds those, calls this function:
string getContent(const string& name)
{
if (name == "title")
return page->getTitle();
else if (name == "color")
return getBodyColor();
...etc.
}
and then replaces the original placeholder with returned value.
In real case, it is not a dummy web page, and there are many (50+) different placeholders that can occur.
My code is C++, but I guess this problem exists with any language. It's more about algorithms and OO design I guess. Only important thing is that this must be compiled, even if I wanted I couldn't have any dynamic/eval'd code.
I though about implementing Chain of Responsibility pattern, but it doesn't seem it would improve the situation much.
UPDATE: and I'm also concerned about this comment in another thread. Should I care about it?
See Question&Answers more detail:
os 与恶龙缠斗过久,自身亦成为恶龙；凝视深渊过久,深渊将回以凝视…
