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function [FunctionName,InArg,NInArg,NOutArg] = AST_ParseOperStruct(FileInfo,SharedInfo)
// function [FunctionName,InArg,NInArg,NOutArg] = AST_ParseOperStruct(FileInfo,SharedInfo)
// -----------------------------------------------------------------
//#RNU_RES_B
// Parses the Operation structure of the AST.
//
// Structure of Operation:
//overloading function for "operation" type tlist string function
//this is a node of the AST
//fields:
// operands: a list
// operator: a string
// txt=['Operation'
// ' Operands:'
// ' '+objectlist2string(O.operands)
// ' Operator: '+O.operator
// 'EndOperation'
// ]
//
//#RNU_RES_E
// Input data:
// //NUT: add description here
//
// Output data:
// //NUT: add description here
//
// Status:
// 11-Apr-2007 -- Raffaele Nutricato: Author.
//
// Copyright 2007 Raffaele Nutricato.
// Contact: raffaele.nutricato@tiscali.it
// -----------------------------------------------------------------
// ------------------------------
// --- Check input arguments. ---
// ------------------------------
SCI2CNInArgCheck(argn(2),2,2);
// -----------------------
// --- Initialization. ---
// -----------------------
nxtscifunname = SharedInfo.NextSCIFunName;
nxtscifunnumber = SharedInfo.NextSCIFunNumber;
ReportFileName = FileInfo.Funct(nxtscifunnumber).ReportFileName;
PrintStringInfo(' ',ReportFileName,'file','y');
PrintStringInfo('***Reading AST***',ReportFileName,'file','y');
global SCI2CSTACK
global StackPosition;
global STACKDEDUG
// ---------------------------
// --- End Initialization. ---
// ---------------------------
// ------------------------------
// --- Extract function name. ---
// ------------------------------
buffstring = AST_PopASTStack();
LabelFunctName = 'Operator: ';
FunctionName = stripblanks(part(buffstring,length(LabelFunctName)+1:length(buffstring)));
// Generate the proper function name.
FunctionName = Operator2FunName(FunctionName);
// ------------------------------
// --- Read input parameters. ---
// ------------------------------
RhsField = AST_PopASTStack();
NInArg = 0;
while (RhsField ~= 'Operands:')
NInArg = NInArg + 1;
[InputArgumentNames(NInArg),InputArgumentScope(NInArg)] = AST_ExtractNameAndScope(RhsField);
RhsField = AST_PopASTStack();
if (RhsField == 'Operation')
error(9999, 'Found Operation before Rhs');
end
end
if (stripblanks(InputArgumentNames(NInArg)) == '<empty>')
//NUT: forse non serve per l'operation
NInArg = 0;
InputArgumentNames = [];
InputArgumentScope = [];
end
InputArgumentNames = SCI2Cflipud(InputArgumentNames);
InputArgumentScope = SCI2Cflipud(InputArgumentScope);
//#RNU_RES_B
// Remove tag "Operation" from the stack.
//#RNU_RES_E
OperationField = AST_PopASTStack();
if (OperationField ~= 'Operation') then
error(9999, 'Problems with Operation, Expected Operation tag.');
end
// --------------------------------------------
// --- Extract number of output parameters. ---
// --------------------------------------------
if (FunctionName == 'ins')
NOutArg = 0; // It is always 1. Double check it!
else
NOutArg = 1; // It is always 1. Double check it!
end
// -------------------------------------
// --- Generate the InArg structure. ---
// -------------------------------------
InArg = [];
for counterinputargs = 1:NInArg
InArg(counterinputargs).Name=InputArgumentNames(counterinputargs);
InArg(counterinputargs).Scope=InputArgumentScope(counterinputargs);
end
//#RNU_RES_B
PrintStringInfo('Operation Name: '+FunctionName,ReportFileName,'file','y');
PrintStringInfo('N Intput Arguments: '+string(NInArg),ReportFileName,'file','y');
PrintStringInfo('N Output Arguments: '+string(NOutArg),ReportFileName,'file','y');
//#RNU_RES_E
for counterinputargs = 1:NInArg
//#RNU_RES_B
PrintStringInfo('Input Argument Number '+string(counterinputargs)+': '+InArg(counterinputargs).Name,...
ReportFileName,'file','y');
PrintStringInfo(' Scope: '+InArg(counterinputargs).Scope,...
ReportFileName,'file','y');
//#RNU_RES_E
end
endfunction
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