forked from xxq250/Nasal-Interpreter
Valk Richard Li
234 lines
2.9 KiB
Markdown
234 lines
2.9 KiB
Markdown
# Nasal-Interpreter
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# Nasal
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Nasal is a script language that used in FlightGear.
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There is a Nasal console in FlightGear but sometimes it is not so easy for every developer to use.
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So this is an interpreter for Nasal written by C++.
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The interpreter is still in development.Anyone who interested in this could also join us!
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# Now complete all types
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var: int float double std::string char long long int
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NasalList: array in nasal []
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append
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setsize
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subvec
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pop
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sort
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NasalHash: Hash in nasal {}
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append
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delete
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contains
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keys
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# Now complete Lexical Analysis!
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What it looks like?
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( Identifier | engineTimer )
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( Operator | . )
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( Identifier | start )
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( Operator | ( )
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( Operator | ) )
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( Operator | ; )
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( ReserveWord | print )
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( Operator | ( )
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( String | "Engine started" )
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( Operator | ) )
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( Operator | ; )
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( Operator | } )
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( ReserveWord | var )
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( Identifier | stopEngine )
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( Operator | = )
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( ReserveWord | func )
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( Operator | ( )
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( Operator | ) )
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( Operator | { )
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( Identifier | props )
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( Operator | . )
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( Identifier | getNode )
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( Operator | ( )
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( String | "/" )
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( Operator | , )
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( Number | 1 )
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( Operator | ) )
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( Operator | . )
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( Identifier | setValue )
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( Operator | ( )
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( String | "/controls/engines/engine/started" )
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( Operator | , )
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( Number | 0 )
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( Operator | ) )
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( Operator | ; )
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( Identifier | props )
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( Operator | . )
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( Identifier | getNode )
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( Operator | ( )
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( String | "/" )
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( Operator | , )
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( Number | 1 )
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( Operator | ) )
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( Operator | . )
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( Identifier | setValue )
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( Operator | ( )
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( String | "/fdm/jsbsim/external_reactions/engine/magnitude" )
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( Operator | , )
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( Number | 0 )
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( Operator | ) )
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( Operator | ; )
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( Identifier | props )
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( Operator | . )
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( Identifier | getNode )
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( Operator | ( )
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( String | "/" )
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( Operator | , )
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( Number | 1 )
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( Operator | ) )
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( Operator | . )
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( Identifier | setValue )
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( Operator | ( )
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( String | "/systems/electrical/e-tron/switch/bat-fwd-eng" )
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( Operator | , )
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( Number | 0 )
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( Operator | ) )
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( Operator | ; )
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( Identifier | props )
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( Operator | . )
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( Identifier | getNode )
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( Operator | ( )
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( String | "/" )
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( Operator | , )
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( Number | 1 )
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( Operator | ) )
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( Operator | . )
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( Identifier | setValue )
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( Operator | ( )
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( String | "/systems/electrical/e-tron/switch/bat-bwd-eng" )
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( Operator | , )
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( Number | 0 )
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( Operator | ) )
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( Operator | ; )
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( Identifier | engineTimer )
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( Operator | . )
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( Identifier | stop )
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( Operator | ( )
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( Operator | ) )
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( Operator | ; )
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( ReserveWord | print )
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( Operator | ( )
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( String | "Engine stopped" )
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( Operator | ) )
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( Operator | ; )
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( Operator | } )
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This is what it outputs.
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