Steve Ratcliffe wrote:
With these two rules, even if they are run in same order as
they are written, the second one could never
have an effect if ${name} is defined.
highway=* { name '${name} (${ref})' | '${ref}' | '${name}' }
highway=* { name '${name} ${name1}' | '${name1}' | '${name}' }
This is because you can only set the name once. If ${name} is set
then the name will be set in the first rule and so the only
way that the second rule can be used is if ${name1} is set and ${name}
is not set.
You could fix that by doing everything together, if that is
the effect you want:
highway=* {
name '${name} (${ref})'
| '${ref}'
| '${name} ${name1}'
| '${name1}'
| '${name}'
}
..Steve
The problem ist that generating a list that does everything together
will become to complex, say you have to write down all combination for
10 keys. Or am I missing something? The problem is that if I write
everything into one line, and one key listed there is not present on
highway=* it will fail.
highway=* {
name '${name} (${ref})'
| '${ref}'
| '${name} ${name1}'
| '${name1}'
| '${name}'
}
would become for one more value
highway=* {
name | '${ref} ${name} ${name1} ${name2}'
| '${name} ${name1} ${name2}'
| '${ref} ${name1} ${name2}'
| '${ref} ${name} ${name2}'
| '${ref} ${name} ${name}1'
| '${ref} ${name}
| '${ref} ${name1}
| '${ref} ${name2}
| '${name} ${name1}
| '${name} ${name2}
| '${name1} ${name2}
| '${name}'
| '${name1}'
| '${name2}'
| '${ref}'
}
Adding one more and it gets even worse....... but adding 10 more keys and this
list will grow into eternity.....
Now the problem is that I don't want to have the value of the key in the name itself each time, but on presence of a key I wan't to have another value inside.
so if route=mtb is present I want to have mtbrt in the name, or for
route=bicycle I would like to have cyrt and so on. So I have to run some tests
whether values are present or not, which would make the task to put everything
into on line even more difficult...
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