I'm having a hard time understanding exactly how plugin variables work. It's
probably a level of detail that only plugin developers and tool developers need
to be concerned about. I'd appreciate it if someone can give me the answers.
1. "variables can be indicated by a dollar-sign followed by a series of
capital letters, digits, or underscores."
"To make the variable mandatory, the <platform> tag needs to contain a
<preference> tag."
Does this mean that there are optional and required variables - i.e?
- A variable reference is defined by a lexical element which begins with
a $ and is followed only by capital letters, digits, or underscores?
- A variable is made mandatory by the presence of a <preference> tag
which uses the same name with the $ removed?
- Can this <preference> tag be anywhere in the plugin.xml file, or must
it be the direct child of the <plugin> element or
a <platform> element?
- Can the variable references be anywhere or only within strings?
2. Where and when are the variables replaced by their value?
- plugin.xml is the only place that the variable value is used and only
for replacing the variable references?
- When in Cordova CLI do the values get applied - during "add", during
"prepare"?
3. What happens if you combine dependencies with variables. For example,
suppose A depends on B, and B requires a variable X. How do you supply the
value?
Thanks,
Leo
