Location of generic protocol and nasal scripts.

[Soi]

Hi,

I have two questions:
1. From my understanding, nasal scripts "must' be installed under data/Nasal directory. Can I install the nasal scripts elsewhere?
2. Generic protocols xml files "must" be install in data/Protocol directory. Can I install the xml files elsewhere?

Many thanks,
Soi

[Thorsten]

1. From my understanding, nasal scripts "must' be installed under data/Nasal directory. Can I install the nasal scripts elsewhere?

That's globally relevant Nasal scripts. Model-specific ones reside with their model, aircraft-specific ones with their aircraft and Nasal menu helper functions with the menu xml.

I guess the basic idea is that specific Nasal may be embedded in the relevant xml structures.

[Hooray]

• common Nasal modules are located in $FG_ROOT/Nasal, these are loaded automatically (via their *.nas file extension)
• Nasal submodules are located in a sub folder below $FG_ROOT/Nasal
• user-specific Nasal extensions may also live under $FG_HOME
• otherwise, scripts can be pretty much everywhere - but may need to be explicitly/manually loaded - e.g. via io.load_nasal() or io.include() - or via the -set.xml file

Like Thorsten mentioned, you can put Nasal pretty much anywhere, including XML sections - or even non-nas files (which we are using in the MapStructure/ND frameworks) - but you may need to manually process those - otherwise, there are only a handful of C++ subsystems that contain hard-coded support for "Nasal sections" embedded in XML, e.g. GUI files or model files.

If you are thinking in terms of some kind of "addon", $FG_HOME would probably be a good place - alternatively, just put a loader script into $FG_ROOT/Nasal and load your stuff from anywhere

PS: $FG_ROOT/Protocols is almost certainly hard-coded somewhere, if you really wanted to maintain the protocol elsewhere, you could include it, but would still need to drop a "stub" into $FG_ROOT/Protocols