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parsec.ring
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parsec.ring
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# Generate C Functions wrappers for the Ring programming language
# To execute : run parsec test.cf [test.c] [test.ring]
# Author : Mahmoud Fayed <msfclipper@yahoo.com>
/* Data Structure & Usage
C_FUNC_INS
List [ C_INS_CODE , C_FUNC_CODE ]
[ C_INS_FUNCTION, C_FUNC_OUTPUT, C_FUNC_NAME , C_FUNC_PARA , C_CLASS_NAME]
[ C_INS_REGISTER, C_FUNC_OUTPUT, C_FUNC_NAME , C_FUNC_PARA , C_CLASS_NAME]
[ C_INS_STRUCT , C_FUNC_STRUCTDATA ]
[ C_INS_RUNCODE , C_FUNC_CODE ]
[ C_INS_CLASS , C_FUNC_CODE ]
[ C_INS_CONSTANT, C_FUNC_CODE ]
The first record is used for generating code written in <code> and </code>
The second record is used for function prototype
The third record is used for function registration only <register> and </register>
we can put comments between <comment> and </comment>
The record no. 4 is used for defining functions to create/destroy
struct. used for <struct> and </struct>
We can put function start when we generate function for strucutres
between <funcstart> and </funcstart>
We can execute ring code during code generation by using
<runcode> and </runcode>
We can define classes between <class> and </class>
using <nodllstartup> we can avoid #include "ring.h", We need this to write our startup code.
using <libinitfunc> we can change the function name that register the library functions
using <ignorecpointertype> we can ignore pointer type check
using <filter> and </filter> we can include/exclude parts of the configuration file
based on a condition
for example <filter> iswindows()
... functions related to windows
</filter>
in method prototype - when we use @ in the method name
we mean that we have the same method with different parameters (As in C++)
*/
C_INS_FUNCTION = 1
C_INS_CODE = 2
C_INS_REGISTER = 3
C_INS_COMMENT = 4
C_INS_STRUCT = 5
C_INS_FUNCSTART = 6
C_INS_RUNCODE = 7
C_INS_CLASS = 8
C_INS_FILTER = 9
C_INS_CONSTANT = 10
C_FUNC_INS = 1
C_FUNC_OUTPUT = 2
C_FUNC_NAME = 3
C_FUNC_PARA = 4
C_CLASS_NAME = 5
C_FUNC_CODE = 2
C_FUNC_STRUCTDATA = 2
C_TYPE_VOID = 1
C_TYPE_NUMBER = 2
C_TYPE_STRING = 3
C_TYPE_POINTER = 4
C_TYPE_UNKNOWN = 5
C_TYPE_ENUM = 6
$cFuncStart = ""
$aStructFuncs = []
aNumberTypes = ["int","float","double","bool","unsigned char","size_t",
"long int","int8_t","int16_t","int32_t","int64_t",
"uint8_t","uint16_t","uint32_t","uint64_t"]
aEnumTypes = []
aStringTypes = ["const char *","char const *","char *"]
aNewMethodName = [] # list store new method name ["class name","method name","new method name"]
C_NMN_CLASSNAME = 1
C_NMN_METHODNAME = 2
C_NMN_NEWMETHODNAME = 3
aBeforeReturn = [] # array include arrays ["type","code after calling the method
# Ex: ["QString",".toStdString().c_str()"]
C_BR_TYPENAME = 1
C_BR_CODE = 2
$cClassName = ""
$cNewPara = ""
$cClassParent = ""
$aClassesList = []
C_CLASSESLIST_NAME = 1
C_CLASSESLIST_PARA = 2
C_CLASSESLIST_PARENT = 3
C_CLASSESLIST_CODENAME = 4
C_CLASSESLIST_PASSVMPOINTER = 5
C_CLASSESLIST_ABSTRACT = 6
$lNodllstartup = false # when used, ring.h will not be included automatically
$cLibInitFunc = "ringlib_init"
$lIgnoreCPointerTypeCheck = false
$aMallocClassesList = [] # list contains classes to use malloc() instead of new when we return objects of this type (not pointer)
Func Main
if len(sysargv) < 3
See "Input : filename.cf is missing!" + nl
bye
ok
cFile = sysargv[3]
cStr = read(cFile)
aList = str2list(cStr)
aData = []
lFlag = C_INS_FUNCTION
for cLine in aList
cLine = trim(cLine)
nPos = substr(cLine,"#")
if nPos > 0
if (substr(cLine,"#include") = 0 ) and ( substr(cLine,"#define") = 0 )
cLine = trim(left(cLine,nPos-1))
ok
ok
see "ReadLine : " + cLine + nl
if cLine = NULL and lflag != C_INS_CODE
loop
but lFlag = C_INS_COMMENT and cLine != "</comment>"
loop
but lFlag = C_INS_FILTER and cLine != "</filter>"
loop
ok
if cLine = "<code>"
lflag = C_INS_CODE
loop
but cLine = "<register>"
lflag = C_INS_REGISTER
loop
but cLine = "<comment>"
lFlag = C_INS_COMMENT
loop
but cLine = "<struct>"
lFlag = C_INS_STRUCT
loop
but cLine = "<funcstart>"
lFlag = C_INS_FUNCSTART
loop
but cLine = "<runcode>"
lFlag = C_INS_RUNCODE
loop
but cLine = "<class>"
lFlag = C_INS_CLASS
loop
but cLine = "<constant>"
lFlag = C_INS_CONSTANT
loop
but cLine = "<nodllstartup>"
$lNodllstartup = true
loop
but left(cLine,13) = "<libinitfunc>"
$cLibInitFunc = trim(substr(cLine,14))
loop
but cLine = "<ignorecpointertype>"
$lIgnoreCPointerTypeCheck = true
loop
but left(cLine,8) = "<filter>"
cFilter = "lInclude = " + trim(substr(cLine,9))
see "Execute Filter : " + cFilter + nl
eval(cFilter)
See "Filter output : " + lInclude + nl
lFilterFlag = lFlag
if lInclude = false
lFlag = C_INS_FILTER
ok
loop
but cLine = "</filter>"
lFlag = lFilterFlag
loop
but cLine = "</code>" or cLine = "</register>" or
cLine = "</comment>" or cLine = "</struct>" or
cLine = "</funcstart>" or cLine = "</runcode>" or
cLine = "</class>" or cLine = "</constant>"
lFlag = C_INS_FUNCTION
loop
ok
if lFlag = C_INS_FUNCTION
aData + ThreeParts(cLine)
aData[len(aData)] + $cClassName
but lFlag = C_INS_REGISTER
aData + ThreeParts(cLine)
aData[len(aData)][1] = C_INS_REGISTER
aData[len(aData)] + $cClassName
but lFlag = C_INS_CODE
aData + [C_INS_CODE,cLine]
but lFlag = C_INS_STRUCT
aData + [C_INS_STRUCT,cLine]
but lFlag = C_INS_FUNCSTART
$cFuncStart = trim(lower(cLine)) + "_"
but lFlag = C_INS_RUNCODE
aData + [C_INS_RUNCODE,cLine]
but lFlag = C_INS_CLASS
aData + [C_INS_CLASS,cLine]
cValue = trim(cLine)
if left(lower(cValue),5) = "name:"
$cClassName = trim(substr(cValue,6))
ok
but lFlag = C_INS_CONSTANT
aData + [C_INS_CONSTANT,cLine]
ok
next
cCode = GenCode(aData)
if len(sysargv) = 3
see cCode
else
WriteFile(sysargv[4],cCode)
ok
if len(sysargv) = 5 # Generate Ring Classes for C++ Classes
cCode = GenRingCode(aData)
WriteFile(sysargv[5],cCode)
ok
if len($aClassesList) > 0
cCode = ""
for x in $aClassesList
cCode += x[1] + nl
next
WriteFile("classes.txt",cCode)
ok
Func WriteFile cFileName,cCode
See "Writing file : " + cFileName + nl +
"Size : " + len(cCode) + " Bytes" + nl
aCode = str2list(cCode)
fp = fopen(cFileName,"wb")
for cLine in aCode
fwrite(fp,cLine+char(13)+char(10))
next
fclose(fp)
Func ThreeParts cLine
# Get three parts (output - function name - parameters)
nPos1 = substr(cLine,"(")
for x = nPos1 to 1 step -1
switch cLine[x]
on " "
nPos2 = x
cFuncName = substr(cLine,nPos2+1,nPos1-nPos2-1)
exit
on "*"
nPos2 = x + 1
cFuncName = substr(cLine,nPos2,nPos1-nPos2)
exit
off
next
cFuncOutput = left(cLine,nPos2-1)
cFuncPara = substr(cLine,nPos1+1,len(cLine)-nPos1-1)
return [C_INS_FUNCTION,cFuncOutput,cFuncName,ParaList(cFuncPara)]
Func ParaList cPara
# convert string of parameters separated by , to a list
aList = []
nPos = substr(cPara,",")
while nPos
aList + ParaTypeNoName( left(cPara,nPos-1) )
cPara = substr(cPara,nPos+1)
nPos = substr(cPara,",")
end
aList + ParaTypeNoName( cPara )
return aList
Func ParaTypeNoName cLine
# get the parameter type and name, remove name and keep the type only
cLine = trim(cLine)
for x = len(cLine) to 1 step -1
if cLine[x] = "*" or cLine[x] = " "
return left(cLine,x)
ok
next
return cLine
Func VarTypeID cType
# get type as string - return type as number
# 1 = void 2 = Number 3 = String 4 = Pointer 5 - UnKnown
cType = Trim(cType)
if cType = "void"
return C_TYPE_VOID
but find(aNumberTypes,cType) > 0
return C_TYPE_NUMBER
but find(aEnumTypes,cType) > 0
return C_TYPE_ENUM
but find(aStringTypes,cType) > 0
return C_TYPE_STRING
but right(cType,1) = "*"
return C_TYPE_POINTER
else
return C_TYPE_UNKNOWN
ok
Func GenCode aList
cCode = ""
cCode += GenDLLStart()
# Generate Classes List at first
for aFunc in aList
if aFunc[C_FUNC_INS] = C_INS_CLASS
cValue = trim(aFunc[C_INS_CODE])
if left(lower(cValue),5) = "name:"
cClassName = trim(substr(cValue,6))
See "Class Name : " + cClassName + nl
$aClassesList + [cClassName,"","","",false,false]
ok
ok
next
#
for aFunc in aList
if aFunc[C_FUNC_INS] = C_INS_FUNCTION
if $cClassName = ""
cCode += GenFuncCode(aFunc)
else
cCode += GenMethodCode(aFunc)
ok
but aFunc[C_FUNC_INS] = C_INS_CODE
cCode += aFunc[C_INS_CODE] + nl
but aFunc[C_FUNC_INS] = C_INS_STRUCT
cCode += GenStruct(aFunc)
but aFunc[C_FUNC_INS] = C_INS_CONSTANT
cCode += GenConstant(aFunc)
but aFunc[C_FUNC_INS] = C_INS_RUNCODE
Try
eval(aFunc[C_INS_CODE])
Catch
See "Error executing code : " + aFunc[C_INS_CODE] + nl
Done
but aFunc[C_FUNC_INS] = C_INS_CLASS
cValue = trim(aFunc[C_INS_CODE])
if left(lower(cValue),5) = "name:"
$cClassName = trim(substr(cValue,6))
See "Class Name : " + $cClassName + nl
# $aClassesList + [$cClassName,"","","",false,false]
but left(lower(cValue),5) = "para:"
$cNewPara = trim(substr(cValue,6))
See "Parameters : " + $cNewPara + nl
nIndex = find($aClassesList,$cClassName,1)
$aClassesList[nIndex][C_CLASSESLIST_PARA] = $cNewPara
but left(lower(cValue),7) = "parent:"
$cClassParent = trim(substr(cValue,8))
See "Class Parent : " + $cClassParent + nl
nIndex = find($aClassesList,$cClassName,1)
$aClassesList[nIndex][C_CLASSESLIST_PARENT] = $cClassParent
but left(lower(cValue),9) = "codename:"
cCodeName = trim(substr(cValue,10))
See "Class Code Name : " + cCodeName + nl
nIndex = find($aClassesList,$cClassName,1)
$aClassesList[nIndex][C_CLASSESLIST_CODENAME] = cCodeName
but lower(cValue) = "passvmpointer"
nIndex = find($aClassesList,$cClassName,1)
$aClassesList[nIndex][C_CLASSESLIST_PASSVMPOINTER] = true
but lower(cValue) = "abstract"
nIndex = find($aClassesList,$cClassName,1)
$aClassesList[nIndex][C_CLASSESLIST_ABSTRACT] = true
SEE "Class : Abstract" + nl
but lower(cValue) = "nonew"
nIndex = find($aClassesList,$cClassName,1)
del($aClassesList,nIndex)
ok
ok
next
cCode += GenNewFuncForClasses(aList)
cCode += GenDeleteFuncForClasses(aList)
cCode += GenFuncPrototype(aList)
return cCode
Func GenDLLStart
if $lNodllstartup return "" ok
return '#include "ring.h"' + nl + nl
Func GenFuncPrototype aList
cCode = "RING_API void "+$cLibInitFunc+"(RingState *pRingState)" + nl +
"{" + nl
for aFunc in aList
if aFunc[C_FUNC_INS] = C_INS_FUNCTION OR aFunc[C_FUNC_INS] = C_INS_REGISTER
if len(aFunc) >= C_CLASS_NAME
cClassName = aFunc[C_CLASS_NAME]
else
cClassName = $cClassName
ok
cCode += GenTabs(1) + 'ring_vm_funcregister("'
cFuncName = aFunc[C_FUNC_NAME]
cFuncName = SubStr(cFuncName,"@","_")
if cClassName != ""
cCode += lower(cClassName) + "_"
ok
cCode += lower(cFuncName) + '",' +
"ring_"
if cClassName != ""
cCode += cClassName + "_"
ok
cCode += cFuncName + ");" + nl
ok
next
for cFunc in $aStructFuncs
cCode += GenTabs(1) + 'ring_vm_funcregister("' + cFunc + '",' +
"ring_"+cFunc + ");" + nl
next
cCode += "}" + nl
return cCode
Func GenFuncCode aList
cFuncName = aList[C_FUNC_NAME]
cFuncName = substr(cFuncName,"@","_")
cCode = nl+"RING_FUNC(" + "ring_"+cFuncName + ")" + nl +
"{" + nl +
GenFuncCodeCheckParaCount(aList) +
GenMethodCodeCheckIgnorePointerType() +
GenFuncCodeCheckParaType(aList) +
GenFuncCodeCallFunc(aList)+
"}" + nl + nl
return cCode
Func GenFuncCodeCheckParaCount aList
aPara = aList[C_FUNC_PARA]
nCount = ParaCount(aPara)
cCode = GenTabs(1) + "if ( RING_API_PARACOUNT != "+nCount+" ) {" + nl +
GenTabs(2) +"RING_API_ERROR("
switch nCount
on 1
cCode += "RING_API_MISS1PARA"
on 2
cCode += "RING_API_MISS2PARA"
on 3
cCode += "RING_API_MISS3PARA"
on 4
cCode += "RING_API_MISS4PARA"
other
cCode += "RING_API_BADPARACOUNT"
off
cCode += ");" + nl +
GenTabs(2) +"return ;" + nl +
GenTabs(1) +"}" + nl
return cCode
Func GenFuncCodeCheckParaType aList
cCode = ""
aPara = aList[C_FUNC_PARA]
nCount = ParaCount(aPara)
if nCount > 0
for t = 1 to len(aPara)
x = aPara[t]
switch VarTypeID(x)
on C_TYPE_NUMBER
cCode += GenTabs(1) + "if ( ! RING_API_ISNUMBER("+t+") ) {" + nl +
GenTabs(2) + "RING_API_ERROR(RING_API_BADPARATYPE);" + nl +
GenTabs(2) + "return ;" + nl +
GenTabs(1) + "}" + nl
on C_TYPE_ENUM
cCode += GenTabs(1) + "if ( ! RING_API_ISNUMBER("+t+") ) {" + nl +
GenTabs(2) + "RING_API_ERROR(RING_API_BADPARATYPE);" + nl +
GenTabs(2) + "return ;" + nl +
GenTabs(1) + "}" + nl
on C_TYPE_STRING
cCode += GenTabs(1) + "if ( ! RING_API_ISSTRING("+t+") ) {" + nl +
GenTabs(2) + "RING_API_ERROR(RING_API_BADPARATYPE);" + nl +
GenTabs(2) + "return ;" + nl +
GenTabs(1) + "}" + nl
on C_TYPE_POINTER
if GenPointerType(x) = "int" or GenPointerType(x) = "double"
# pointer to int, i.e. int *
cCode += GenTabs(1) + "if ( ! RING_API_ISSTRING("+t+") ) {" + nl +
GenTabs(2) + "RING_API_ERROR(RING_API_BADPARATYPE);" + nl +
GenTabs(2) + "return ;" + nl +
GenTabs(1) + "}" + nl
else
cCode += GenTabs(1) + "if ( ! RING_API_ISPOINTER("+t+") ) {" + nl +
GenTabs(2) + "RING_API_ERROR(RING_API_BADPARATYPE);" + nl +
GenTabs(2) + "return ;" + nl +
GenTabs(1) + "}" + nl
ok
off
next
ok
return cCode
Func GenFuncCodeCallFunc aList
cCode = GenTabs(1)
lRet = true
lUNKNOWN = false
lRetPointer = false
switch VarTypeID(aList[C_FUNC_OUTPUT])
on C_TYPE_VOID
lRet = false
on C_TYPE_NUMBER
cCode += "RING_API_RETNUMBER("
on C_TYPE_ENUM
cCode += "RING_API_RETNUMBER("
on C_TYPE_STRING
cCode += "RING_API_RETSTRING("
on C_TYPE_POINTER
lRetPointer = true
cCode += "RING_API_RETCPOINTER("
on C_TYPE_UNKNOWN
cCode += "{" + nl +
GenTabs(2) + aList[C_FUNC_OUTPUT] + " *pValue ; " + nl +
GenTabs(2) + "pValue = (" + aList[C_FUNC_OUTPUT] +
" *) malloc(sizeof("+aList[C_FUNC_OUTPUT]+")) ;" + nl +
GenTabs(2) + "*pValue = "
lRet = false
lUNKNOWN = true
off
cFuncName = aList[C_FUNC_NAME]
nPos = SubStr(cFuncName,"@")
if nPos > 0
cFuncName = left(cFuncName,nPos-1)
ok
cCode += cFuncName + "(" +
GenFuncCodeGetParaValues(aList) + ")"
if lRet
if lRetPointer
cCode += ',"' + GenPointerType(aList[C_FUNC_OUTPUT]) + '"'
ok
cCode += ")"
ok
cCode += ";" + nl
cCode += GenFuncCodeFreeNotAssignedPointers(aList)
if lUNKNOWN # Generate code to convert struct to struct *
cCode += GenTabs(2) + 'RING_API_RETCPOINTER(pValue,"' + trim(aList[C_FUNC_OUTPUT]) +
'");' + nl + GenTabs(1) + "}" + nl
ok
# Accept int values, when the C function take int * as parameter
cCode += GenFuncCodeGetIntValues(aList)
return cCode
Func GenFuncCodeGetParaValues aList
cCode = ""
aPara = aList[C_FUNC_PARA]
nCount = ParaCount(aPara)
if nCount > 0
for t = 1 to len(aPara)
if t > 1 # separator between parameters
cCode += ","
ok
x = aPara[t]
switch VarTypeID(x)
on C_TYPE_NUMBER
cCode += " (" + x + ") " + "RING_API_GETNUMBER(" + t + ")"
on C_TYPE_ENUM
cCode += " (" + x + ") " + " (int) RING_API_GETNUMBER(" + t + ")"
on C_TYPE_STRING
cCode += "RING_API_GETSTRING(" + t + ")"
on C_TYPE_POINTER
if GenPointerType(x) = "int"
cCode += "RING_API_GETINTPOINTER(" + t + ")"
but GenPointerType(x) = "double"
cCode += "RING_API_GETDOUBLEPOINTER(" + t + ")"
else
if not IsPointer2Pointer(x)
cCode += "(" + GenPointerType(x) + " *) RING_API_GETCPOINTER(" + t +',"'+GenPointerType(x)+ '")'
else
cCode += "(" + GenPointerType(x) + " **) RING_API_GETCPOINTER2POINTER(" + t +',"'+GenPointerType(x)+ '")'
ok
ok
on C_TYPE_UNKNOWN
cCode += "* (" + x + " *) RING_API_GETCPOINTER(" + t +',"'+trim(x)+'")'
off
next
ok
return cCode
Func GenFuncCodeGetIntValues aList
cCode = ""
aPara = aList[C_FUNC_PARA]
nCount = ParaCount(aPara)
if nCount > 0
for t = 1 to len(aPara)
x = aPara[t]
if VarTypeID(x) = C_TYPE_POINTER
if GenPointerType(x) = "int"
cCode += GenTabs(1) +
"RING_API_ACCEPTINTVALUE(" + t + ") ;" + nl
ok
ok
next
ok
return cCode
Func GenFuncCodeFreeNotAssignedPointers aList
cCode = ""
aPara = aList[C_FUNC_PARA]
nCount = ParaCount(aPara)
if nCount > 0
for t = 1 to len(aPara)
x = aPara[t]
if VarTypeID(x) = C_TYPE_UNKNOWN
cCode += GenTabs(1) + "if (RING_API_ISCPOINTERNOTASSIGNED(" + t + "))" + nl
cCode += GenTabs(2) + "free(RING_API_GETCPOINTER("+t+',"'+GenPointerType(x)+'"));' + nl
ok
next
ok
return cCode
Func IsPointer2Pointer x
if substr(x,"**")
return True
ok
return false
Func GenPointerType x
x = substr(x,"const","")
x = substr(x,"*","")
x = trim(x)
return x
Func GenTabs x
return copy(char(9),x)
Func ParaCount aList
# get list of paramters, return parameters count
if len(aList) > 1
return len(aList)
else
if VarTypeID(alist[1]) = C_TYPE_VOID
return 0
else
return 1
ok
ok
Func GenStruct aFunc
# this function parse struct information
# struct_name { struct_members }
# strucut_members are separated by comma (,)
aStructMembers = []
cLine = aFunc[C_FUNC_STRUCTDATA]
nPos = substr(cLine,"{")
if nPos > 0
# Get Struct Members and store it in aStructMembers
cStruct = trim(left(cLine,nPos-1))
cStructMembers = substr(cLine,nPos+1)
nPos = substr(cStructMembers,"}")
if nPos > 0
cStructMembers = left(cStructMembers,nPos-1)
cStructMembers = substr(cStructMembers,",",nl)
aStructMembers = str2list(cStructMembers)
for x in aStructMembers x = trim(x) next
ok
else
cStruct = trim(cLine)
ok
# We have struct_name in cStruct and struct_members in aStructMembers
cCode = ""
# Generate Functions to Create the Struct
cFuncName = $cFuncStart+"new_"+lower(cStruct)
$aStructFuncs + cFuncName
cCode += "RING_FUNC(ring_"+cFuncName+")" + nl +
"{" + nl +
GenTabs(1) + cStruct + " *pMyPointer ;" + nl +
GenTabs(1) + "pMyPointer = (" + cStruct + " *) malloc(sizeof(" +
cStruct + ")) ;" + nl +
GenTabs(1) + "if (pMyPointer == NULL) " + nl +
GenTabs(1) + "{" + nl +
GenTabs(2) + "RING_API_ERROR(RING_OOM);" + nl +
GenTabs(2) + "return ;" + nl +
GenTabs(1) + "}" + nl +
GenTabs(1) + "RING_API_RETCPOINTER(pMyPointer,"+
'"'+cStruct +'");' + nl +
"}" + nl + nl
# Generate Functions to Destroy the Struct
cFuncName = $cFuncStart+"destroy_"+lower(cStruct)
$aStructFuncs + cFuncName
cCode += "RING_FUNC(ring_"+cFuncName+")" + nl +
"{" + nl +
GenTabs(1) + cStruct + " *pMyPointer ;" + nl +
GenTabs(1) + "if ( RING_API_PARACOUNT != 1 ) {" + nl +
GenTabs(2) +"RING_API_ERROR(RING_API_MISS1PARA) ;" + nl +
GenTabs(2) + "return ;" + nl +
GenTabs(1) + "}" + nl +
GenTabs(1) + "if ( ! RING_API_ISPOINTER(1) ) { " + nl +
GenTabs(2) + "RING_API_ERROR(RING_API_BADPARATYPE);" + nl +
GenTabs(2) + "return ;" + nl +
GenTabs(1) + "}" + nl +
GenTabs(1) + "pMyPointer = RING_API_GETCPOINTER(1," +
'"'+cStruct +'");' + nl +
GenTabs(1) + "free(pMyPointer) ;" + nl +
"}" + nl + nl
# We expect the members to be of type (numbers) or (pointers)
for x in aStructMembers
cItem = substr(x,".","_")
nPointer = substr(cItem,"*")
if not nPointer # The item is number - not pointer
# Generate Functions to Get Struct Members Values
cFuncName = $cFuncStart+"get_"+lower(cStruct)+"_"+cItem
$aStructFuncs + cFuncName
cCode += "RING_FUNC(ring_"+cFuncName+")" + nl +
"{" + nl +
GenTabs(1) + cStruct + " *pMyPointer ;" + nl +
GenTabs(1) + "if ( RING_API_PARACOUNT != 1 ) {" + nl +
GenTabs(2) +"RING_API_ERROR(RING_API_MISS1PARA) ;" + nl +
GenTabs(2) + "return ;" + nl +
GenTabs(1) + "}" + nl +
GenTabs(1) + "if ( ! RING_API_ISPOINTER(1) ) { " + nl +
GenTabs(2) + "RING_API_ERROR(RING_API_BADPARATYPE);" + nl +
GenTabs(2) + "return ;" + nl +
GenTabs(1) + "}" + nl +
GenTabs(1) + "pMyPointer = RING_API_GETCPOINTER(1," +
'"'+cStruct +'");' + nl +
GenTabs(1) + "RING_API_RETNUMBER(pMyPointer->"+x+");" + nl +
"}" + nl + nl
# Generate Functions to Set Struct Members Value
cFuncName = $cFuncStart+"set_"+lower(cStruct)+"_"+cItem
$aStructFuncs + cFuncName
cCode += "RING_FUNC(ring_"+cFuncName+")" + nl +
"{" + nl +
GenTabs(1) + cStruct + " *pMyPointer ;" + nl +
GenTabs(1) + "if ( RING_API_PARACOUNT != 2 ) {" + nl +
GenTabs(2) +"RING_API_ERROR(RING_API_MISS2PARA) ;" + nl +
GenTabs(2) + "return ;" + nl +
GenTabs(1) + "}" + nl +
GenTabs(1) + "if ( ! RING_API_ISPOINTER(1) ) { " + nl +
GenTabs(2) + "RING_API_ERROR(RING_API_BADPARATYPE);" + nl +
GenTabs(2) + "return ;" + nl +
GenTabs(1) + "}" + nl +
GenTabs(1) + "if ( ! RING_API_ISNUMBER(2) ) { " + nl +
GenTabs(2) + "RING_API_ERROR(RING_API_BADPARATYPE);" + nl +
GenTabs(2) + "return ;" + nl +
GenTabs(1) + "}" + nl +
GenTabs(1) + "pMyPointer = RING_API_GETCPOINTER(1," +
'"'+cStruct +'");' + nl +
GenTabs(1) + "pMyPointer->"+x+" = "+"RING_API_GETNUMBER(2);" + nl +
"}" + nl + nl
else
cPointerType = left(cItem,nPointer)
cPointerTypeRet = trim(substr(cPointerType,"*",""))
cItem = substr(cItem,nPointer+1)
x = substr(x,nPointer+1)
# Generate Functions to Get Struct Members Values
cFuncName = $cFuncStart+"get_"+lower(cStruct)+"_"+cItem
$aStructFuncs + cFuncName
cCode += "RING_FUNC(ring_"+cFuncName+")" + nl +
"{" + nl +
GenTabs(1) + cStruct + " *pMyPointer ;" + nl +
GenTabs(1) + "if ( RING_API_PARACOUNT != 1 ) {" + nl +
GenTabs(2) +"RING_API_ERROR(RING_API_MISS1PARA) ;" + nl +
GenTabs(2) + "return ;" + nl +
GenTabs(1) + "}" + nl +
GenTabs(1) + "if ( ! RING_API_ISPOINTER(1) ) { " + nl +
GenTabs(2) + "RING_API_ERROR(RING_API_BADPARATYPE);" + nl +
GenTabs(2) + "return ;" + nl +
GenTabs(1) + "}" + nl +
GenTabs(1) + "pMyPointer = RING_API_GETCPOINTER(1," +
'"'+cStruct +'");' + nl +
GenTabs(1) + "RING_API_RETCPOINTER(pMyPointer->"+x+',"'+cPointerTypeRet+'"'+");" + nl +
"}" + nl + nl
# Generate Functions to Set Struct Members Value
cFuncName = $cFuncStart+"set_"+lower(cStruct)+"_"+cItem
$aStructFuncs + cFuncName
cCode += "RING_FUNC(ring_"+cFuncName+")" + nl +
"{" + nl +
GenTabs(1) + cStruct + " *pMyPointer ;" + nl +
GenTabs(1) + "if ( RING_API_PARACOUNT != 2 ) {" + nl +
GenTabs(2) +"RING_API_ERROR(RING_API_MISS2PARA) ;" + nl +
GenTabs(2) + "return ;" + nl +
GenTabs(1) + "}" + nl +
GenTabs(1) + "if ( ! RING_API_ISPOINTER(1) ) { " + nl +
GenTabs(2) + "RING_API_ERROR(RING_API_BADPARATYPE);" + nl +
GenTabs(2) + "return ;" + nl +
GenTabs(1) + "}" + nl +
GenTabs(1) + "if ( ! RING_API_ISPOINTER(2) ) { " + nl +
GenTabs(2) + "RING_API_ERROR(RING_API_BADPARATYPE);" + nl +
GenTabs(2) + "return ;" + nl +
GenTabs(1) + "}" + nl +
GenTabs(1) + "pMyPointer = RING_API_GETCPOINTER(1," +
'"'+cStruct +'");' + nl +
GenTabs(1) + "pMyPointer->"+x+" = ("+cPointerType+") RING_API_GETCPOINTER(2,"+'"'+cPointerType +'"'+");" + nl +
"}" + nl + nl
ok
next
return cCode
Func GenConstant aFunc
# this function get constant information
# and generate function to get the constant value
cConstant = aFunc[C_FUNC_CODE]
cCode = ""
# Generate Functions to Get The Constant Value
cFuncName = $cFuncStart+"get_"+lower(cConstant)
$aStructFuncs + cFuncName
cCode += "RING_FUNC(ring_"+cFuncName+")" + nl +
"{" + nl +
GenTabs(1) + "RING_API_RETNUMBER("+cConstant+");" + nl +
"}" + nl + nl
return cCode
Func GenMethodCode aList
cFuncName = aList[C_FUNC_NAME]
cFuncName = substr(cFuncName,"@","_")
cCode = nl+"RING_FUNC(" + "ring_"+$cClassName+"_"+
cFuncName + ")" + nl +
"{" + nl +
GenMethodCodeCheckParaCount(aList) +
GenMethodCodeCheckIgnorePointerType() +
GenMethodCodeCheckParaType(aList) +
GenMethodCodeCallFunc(aList)+
"}" + nl + nl
return cCode
Func GenMethodCodeCheckIgnorePointerType
if $lIgnoreCPointerTypeCheck
return GenTabs(1) + "RING_API_IGNORECPOINTERTYPE ;" + nl
ok
Func GenMethodCodeGetClassCodeName
nIndex = find($aClassesList,$cClassName,1)
if $aClassesList[nIndex][C_CLASSESLIST_CODENAME] != NULL
cClassCodeName = $aClassesList[nIndex][C_CLASSESLIST_CODENAME]
else
cClassCodeName = $aClassesList[nIndex][C_CLASSESLIST_NAME]
ok
return cClassCodeName
Func GenMethodCodeCheckParaCount aList
cClassCodeName = GenMethodCodeGetClassCodeName()
aPara = aList[C_FUNC_PARA]
nCount = ParaCount(aPara) + 1
cCode = GenTabs(1) + cClassCodeName + " *pObject ;" + nl +
GenTabs(1) + "if ( RING_API_PARACOUNT != "+nCount+" ) {" + nl +
GenTabs(2) +"RING_API_ERROR("
switch nCount
on 1
cCode += "RING_API_MISS1PARA"
on 2
cCode += "RING_API_MISS2PARA"
on 3
cCode += "RING_API_MISS3PARA"
on 4
cCode += "RING_API_MISS4PARA"
other
cCode += "RING_API_BADPARACOUNT"
off
cCode += ");" + nl +
GenTabs(2) +"return ;" + nl +
GenTabs(1) +"}" + nl
return cCode
Func GenMethodCodeCheckParaType aList
cClassCodeName = GenMethodCodeGetClassCodeName()
cCode = GenTabs(1) + "if ( ! RING_API_ISPOINTER(1) ) {" + nl +
GenTabs(2) + "RING_API_ERROR(RING_API_BADPARATYPE);" + nl +
GenTabs(2) + "return ;" + nl +
GenTabs(1) + "}" + nl +
GenTabs(1) + "pObject = ("+
cClassCodeName+" *) RING_API_GETCPOINTER(1," + '"'+
$cClassName+'"' + ");"+nl
aPara = aList[C_FUNC_PARA]
nCount = ParaCount(aPara)
if nCount > 0
for t = 1 to len(aPara)
x = aPara[t]
t++ # avoid the object pointer
switch VarTypeID(x)
on C_TYPE_NUMBER
cCode += GenTabs(1) + "if ( ! RING_API_ISNUMBER("+t+") ) {" + nl +
GenTabs(2) + "RING_API_ERROR(RING_API_BADPARATYPE);" + nl +
GenTabs(2) + "return ;" + nl +
GenTabs(1) + "}" + nl
on C_TYPE_ENUM
cCode += GenTabs(1) + "if ( ! RING_API_ISNUMBER("+t+") ) {" + nl +
GenTabs(2) + "RING_API_ERROR(RING_API_BADPARATYPE);" + nl +
GenTabs(2) + "return ;" + nl +
GenTabs(1) + "}" + nl
on C_TYPE_STRING
cCode += GenTabs(1) + "if ( ! RING_API_ISSTRING("+t+") ) {" + nl +
GenTabs(2) + "RING_API_ERROR(RING_API_BADPARATYPE);" + nl +
GenTabs(2) + "return ;" + nl +
GenTabs(1) + "}" + nl
on C_TYPE_POINTER
if GenPointerType(x) = "int" or GenPointerType(x) = "double"
# pointer to int, i.e. int *
cCode += GenTabs(1) + "if ( ! RING_API_ISSTRING("+t+") ) {" + nl +
GenTabs(2) + "RING_API_ERROR(RING_API_BADPARATYPE);" + nl +
GenTabs(2) + "return ;" + nl +
GenTabs(1) + "}" + nl
else
cCode += GenTabs(1) + "if ( ! RING_API_ISPOINTER("+t+") ) {" + nl +
GenTabs(2) + "RING_API_ERROR(RING_API_BADPARATYPE);" + nl +
GenTabs(2) + "return ;" + nl +
GenTabs(1) + "}" + nl
ok
off
t-- # ignore effect of avoiding the object pointer
next
ok
return cCode
Func GenMethodCodeCallFunc aList
cFuncName = aList[C_FUNC_NAME]
nPos = SubStr(cFuncName,"@")
if nPos > 0
cFuncName = left(cFuncName,nPos-1)
ok
cCode = GenTabs(1)
lRet = true
lUNKNOWN = false
lRetPointer = false
switch VarTypeID(aList[C_FUNC_OUTPUT])
on C_TYPE_VOID
lRet = false
on C_TYPE_NUMBER
cCode += "RING_API_RETNUMBER("
on C_TYPE_ENUM
cCode += "RING_API_RETNUMBER("
on C_TYPE_STRING
cCode += "RING_API_RETSTRING("
on C_TYPE_POINTER
lRetPointer = true
cCode += "RING_API_RETCPOINTER("
on C_TYPE_UNKNOWN
if ( find($aClassesList,aList[C_FUNC_OUTPUT],1) > 0 ) and ( find($aMallocClassesList,aList[C_FUNC_OUTPUT]) = 0 )
cCode += "{" + nl +
GenTabs(2) + aList[C_FUNC_OUTPUT] + " *pValue ; " + nl +
GenTabs(2) + "pValue = new " + aList[C_FUNC_OUTPUT] +
"() ;" + nl +
GenTabs(2) + "*pValue = "
else
cCode += "{" + nl +
GenTabs(2) + aList[C_FUNC_OUTPUT] + " *pValue ; " + nl +
GenTabs(2) + "pValue = (" + aList[C_FUNC_OUTPUT] +
" *) malloc(sizeof("+aList[C_FUNC_OUTPUT]+")) ;" + nl +
GenTabs(2) + "*pValue = "
ok
lRet = false
lUNKNOWN = true
off
cCode += "pObject->"+ cFuncName + "(" +
GenMethodCodeGetParaValues(aList) + ")"
#Check before return list for any
if len(aBeforeReturn) > 0
nIndex = find(aBeforeReturn,aList[C_FUNC_OUTPUT],C_BR_TYPENAME)
if nIndex > 0
cCode += aBeforeReturn[nIndex][C_BR_CODE]
ok
ok
if lRet
if lRetPointer
cCode += ',"' + GenPointerType(aList[C_FUNC_OUTPUT]) + '"'
ok
cCode += ")"
ok
cCode += ";" + nl
cCode += GenFuncCodeFreeNotAssignedPointers(aList)
if lUNKNOWN # Generate code to convert struct to struct *
cCode += GenTabs(2) + 'RING_API_RETCPOINTER(pValue,"' + trim(aList[C_FUNC_OUTPUT]) +
'");' + nl + GenTabs(1) + "}" + nl
ok
# Accept int values, when the C function take int * as parameter
cCode += GenFuncCodeGetIntValues(aList)
return cCode
Func GenMethodCodeGetParaValues aList
cCode = ""
aPara = aList[C_FUNC_PARA]
nCount = ParaCount(aPara)
if nCount > 0
for t = 1 to len(aPara)
if t > 1 # separator between parameters
cCode += ","
ok
x = aPara[t]
t++ # avoid the object pointer
switch VarTypeID(x)
on C_TYPE_NUMBER
cCode += " (" + x + ") " + "RING_API_GETNUMBER(" + t + ")"
on C_TYPE_ENUM
cCode += " (" + x + ") " + " (int) RING_API_GETNUMBER(" + t + ")"
on C_TYPE_STRING
cCode += "RING_API_GETSTRING(" + t + ")"
on C_TYPE_POINTER
if GenPointerType(x) = "int"
cCode += "RING_API_GETINTPOINTER(" + t + ")"
but GenPointerType(x) = "double"
cCode += "RING_API_GETDOUBLEPOINTER(" + t + ")"
else
cCode += "(" + GenPointerType(x) + " *) " +
"RING_API_GETCPOINTER(" + t +',"'+GenPointerType(x)+ '")'
ok
on C_TYPE_UNKNOWN
cCode += "* (" + x + " *) RING_API_GETCPOINTER(" + t +',"'+trim(x)+'")'