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throw out load_xml_nasal and implement load_nasal(<file> [, <module>]);

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This can be used to load and run Nasal code at runtime (without need
for an XML frame).
This commit is contained in:
mfranz 2007-06-12 19:13:28 +00:00
parent a1fd54cfdf
commit 4c2ded3509
1 changed files with 15 additions and 30 deletions
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45
Nasal/debug.nas
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@ -216,42 +216,27 @@ if (getprop("/sim/logging/priority") != "alert") {
##
# Loads embedded Nasal from an XML file into a Nasal namespace.
# The namespace is by default the file's basename. Optionally,
# a module can be defined in a <module> entry. The file name
# doesn't have to carry an *.xml extension. It may even be
# desirable to use *.nas, so that editors pick up Nasal syntax
# coloring.
# Loads Nasal file into namespace and executes it. The namespace
# (module name) is taken from the optional second argument, or
# derived from the Nasal file's name.
#
# Usage: debug.load_xml_nasal(<filename>);
# Usage: debug.load_nasal(<filename> [, <modulename>]);
#
# Example:
#
# debug.load_xml_nasal("Aircraft/mine/test.nas");
# debug.load_nasal(getprop("/sim/fg-root") ~ "/Local/test.nas");
# debug.load_nasal("/tmp/foo.nas", "test");
#
# contents of test.nas:
#
# <PropertyList>
# <module>test</module> <!-- optional -->
# <script><![CDATA[
#
# print("I'm being reloaded.");
#
# ]]></script>
# </PropertyList>
#
var load_xml_nasal = func(file) {
var n = props.globals.getNode("/tmp/nasal", 1);
n.getNode("filename", 1).setValue(getprop("/sim/fg-root") ~ "/" ~ file);
n.getNode("targetnode", 1).setValue(n.getPath());
if (n.getNode("module", 0) == nil) {
var basename = split(".", split("/", file)[-1])[0];
n.getNode("module", 1).setValue(basename);
}
fgcommand("loadxml", n);
fgcommand("nasal", n);
}
var load_nasal = func(file, module = nil) {
if (module == nil)
module = split(".", split("/", file)[-1])[0];
if (!contains(globals, module))
globals[module] = {};
printlog("info", "loading ", file, " into namespace ", module);
call(compile(io.readfile(file), file), nil, nil, globals[module]);
}
_setlistener("/sim/signals/nasal-dir-initialized", func {