Nasal library functions: Difference between revisions
Red Leader (talk | contribs) (actually no, I do it in my own namespace) |
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e.g. chatter_list = directory( chatter_dir ); | e.g. chatter_list = directory( chatter_dir ); | ||
Example : | |||
<syntaxhighlight lang="nasal" enclose="div"> | |||
var currentPath = "/home/xxx/yyy/"; | |||
print (directory(currentPath)); | |||
</syntaxhighlight> | |||
returns : | |||
:"." | |||
:".." | |||
:"file1" | |||
:"file2" | |||
:"file3" | |||
To delete the "." and ".." see the subvec() function. | |||
== open() == | == open() == | ||
== read() == | == read() == | ||
Revision as of 06:18, 29 May 2015
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The FlightGear forum has a subforum related to: Nasal Scripting |
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| Nasal scripting |
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| Nasal internals |
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| Memory Management (GC) |
Please first see: http://plausible.org/nasal/lib.html
size()
keys()
append()
pop()
setsize()
subvec()
delete()
int()
num(str)
Convert string to number. Returns nil if str is nil, empty string, string with no number.
streq()
cmp()
substr()
chr()
contains()
typeof()
ghosttype(ghost)
Returns a string containing either a descriptive name as passed to naNewGhost or naNewGhost2 in C/C++ while creating the ghost or a unique id (aka the pointer to the C/C++ naGhostType instance) if no name has been set.
compile()
call()
die()
sprintf()
caller()
closure()
find()
split()
rand()
bind()
sort()
id()
math
Trigonometric_functions
Caution: All trigonometric functions works with Radian-values - not with Degree!
To convert this:
radians = degree * math.pi / 180
degree = radians * 180 / math.pi
sin()
cos()
tan()
asin()
acos()
atan2()
exp()
ln()
pow()
sqrt()
floor()
ceil()
fmod()
A modulo-operator, mod(x,y) also works...
The modulo-operation finds the remainder of division of one number by another (sometimes called modulus).
clamp()
periodic()
round()
pi
e
io
- SEEK_SET
- SEEK_CUR
- SEEK_END
- stdin
- stdout
- stderr
stat()
directory()
returns the files in a given directory
e.g. chatter_list = directory( chatter_dir );
Example :
var currentPath = "/home/xxx/yyy/";
print (directory(currentPath));returns :
- "."
- ".."
- "file1"
- "file2"
- "file3"
To delete the "." and ".." see the subvec() function.