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#############################################################################
##
#W tmadmin.tmd GAP table of marks library Thomas Merkwitz
##
#Y Copyright (C) 1997, Lehrstuhl D fuer Mathematik, RWTH Aachen, Germany
##
## This file contains the declarations of all functions and variables to
## handle the table of marks library.
##
#############################################################################
##
#V LIBTOMKNOWN
##
## <#GAPDoc Label="LIBTOMKNOWN">
## <ManSection>
## <Var Name="LIBTOMKNOWN"/>
##
## <Description>
## <C>LIBTOMKNOWN</C> is a record that controls the loading of data files of the
## &GAP; library of tables of marks.
## It has the following components.
## <List>
## <Mark><C>ACTUAL</C> </Mark>
## <Item>
## the name of the file to be read at the moment
## (set by <C>SetActualLibFileName</C>),
## </Item>
## <Mark><C>LOADSTATUS</C> </Mark>
## <Item>
## a record whose components are names of files in the library of
## tables of marks,
## with value a list whose first entry is one of <C>"loaded"</C>,
## <C>"unloaded"</C>, <C>"userloaded"</C> and whose second entry is an integer
## that controls when the corresponding tables of marks can be removed
## from &GAP;,
## </Item>
## <Mark><C>MAX</C> </Mark>
## <Item>
## &GAP; remembers at most <C>MAX</C> of the previously loaded library
## files (the default value is <M>10</M>),
## </Item>
## <Mark><C>UNLOAD</C> </Mark>
## <Item>
## is it allowed to remove previously loaded library files
## (is set to <K>true</K> by default),
## </Item>
## </List>
## <P/>
## Additionally the names of the files already loaded occur as components of
## <C>LIBTOMKNOWN</C>;
## the corresponding values are given by the data of the files.
## </Description>
## </ManSection>
## <#/GAPDoc>
##
DeclareGlobalVariable( "LIBTOMKNOWN" );
InstallFlushableValue( LIBTOMKNOWN, rec(
LOADSTATUS := rec(),
UNLOAD := true,
MAX := 10,
) );
#############################################################################
##
#R IsLibTomRep
##
## <#GAPDoc Label="IsLibTomRep">
##
## <ManSection>
## <Filt Name="IsLibTomRep" Arg='obj' Type='Representation'/>
##
## <Description>
## Library tables of marks have their own representation. <C>IsLibTomRep</C> tests if <A>obj</A> is a library representation.
## <!-- what does this mean?-->
## </Description>
## </ManSection>
## <#/GAPDoc>
##
##
DeclareRepresentation("IsLibTomRep", IsAttributeStoringRep,["sortperm"]);
#############################################################################
##
## We replace the library function `TableOfMarksFromLibrary' that just
## issues a warning about nonavailability of the Tables Of Marks Library.
##
if IsBoundGlobal( "TableOfMarksFromLibrary" ) then
MakeReadWriteGlobal( "TableOfMarksFromLibrary" );
UNBIND_GLOBAL( "TableOfMarksFromLibrary" );
fi;
#############################################################################
##
#F TableOfMarksFromLibrary( <string> )
##
## <#GAPDoc Label="TableOfMarksFromLibrary">
## <ManSection>
## <Func Name="TableOfMarksFromLibrary" Arg='string'/>
##
## <Returns>the table of marks with name <A>string</A>.</Returns>
##
## </ManSection>
## <#/GAPDoc>
##
DeclareGlobalFunction( "TableOfMarksFromLibrary" );
#############################################################################
##
#F ConvertToLibTom( <record> )
##
## <#GAPDoc Label="ConvertToLibTom">
## <ManSection>
## <Func Name="ConvertToLibTom" Arg='record'/>
##
## <Description>
## <C>ConvertToLibTom</C> converts a record with components from
## <C>TableOfMarksComponents</C> into a library table of marks object with the
## corresponding attribute values set.
## </Description>
## </ManSection>
## <#/GAPDoc>
##
DeclareGlobalFunction( "ConvertToLibTom" );
#############################################################################
##
#F SetActualLibFileName( <filename> )
##
## <#GAPDoc Label="SetActualLibFileName">
## <ManSection>
## <Func Name="SetActualLibFileName" Arg='filename'/>
##
## <Description>
## Sets the file name for <A>filename</A>.
## </Description>
## </ManSection>
## <#/GAPDoc>
##
DeclareGlobalFunction( "SetActualLibFileName" );
#############################################################################
##
#F LIBTOM( <arg> )
#F AFLT( <source>, <destination>, <fusion> )
#F ACLT( <identifier>, <component>, <value> )
##
## <#GAPDoc Label="LIBTOM">
## <ManSection>
## <Func Name="LIBTOM" Arg='arg'/>
## <Func Name="AFLT" Arg='source, destination, fusion'/>
## <Func Name="ACLT" Arg='identifier, component, value'/>
##
## <Description>
## The library format of a library table of marks is a call to the function
## <C>LIBTOM</C>, with the arguments sorted as in <C>TableOfMarksComponents</C>
## .
## <P/>
## <C>AFLT</C> adds a fusion map <A>value</A> from the table of marks with name
## <A>source</A> to the table of marks with name <A>destination</A>.
## The fusion map is a list of positive integers, storing at position <M>i</M>
## the position of the class in <A>destination</A> that contains the subgroups
## in the <M>i</M>-th class of <A>source</A>.
## <P/>
## <C>ACLT</C> adds the value <A>value</A> of a component with name <A>component</A> to the
## table of marks with identifier value <A>identifier</A> in the library of
## tables of marks.
## </Description>
## </ManSection>
## <#/GAPDoc>
##
DeclareGlobalFunction( "LIBTOM" );
DeclareGlobalFunction( "AFLT" );
DeclareGlobalFunction( "ACLT" );
#############################################################################
##
#F MakeLIBTOMLIST()
##
## <#GAPDoc Label="MakeLIBTOMLIST">
## <ManSection>
## <Func Name="MakeLIBTOMLIST" Arg=''/>
##
## <Description>
## </Description>
## </ManSection>
## <#/GAPDoc>
##
DeclareGlobalFunction( "MakeLIBTOMLIST" );
#############################################################################
##
#F AllLibTomNames()
##
## <#GAPDoc Label="AllLibTomNames">
## <ManSection>
## <Func Name="AllLibTomNames" Arg=''/>
##
##
## <Returns> a list containing all names of available library tables of
## marks.</Returns>
##
## </ManSection>
## <#/GAPDoc>
##
DeclareGlobalFunction( "AllLibTomNames" );
#############################################################################
##
#A NamesLibTom( <string> )
#A NamesLibTom( <tom> )
##
## <#GAPDoc Label="NamesLibTom">
## <ManSection>
## <Attr Name="NamesLibTom" Arg='string'/>
## <Attr Name="NamesLibTom" Arg='tom'/>
##
## <Returns>
## all names of the library table <A>tom</A> or of the library table with
## name <A>string</A>
## </Returns>
## </ManSection>
## <#/GAPDoc>
##
DeclareAttribute( "NamesLibTom", IsTableOfMarks and IsLibTomRep );
DeclareAttribute( "NamesLibTom", IsString );
#############################################################################
##
#A NotifiedFusionsOfLibTom( <tom> )
#A NotifiedFusionsOfLibTom( <string> )
#A FusionsOfLibTom( <tom> )
#A FusionsOfLibTom( <string> )
##
## <#GAPDoc Label="NotifiedFusionsOfLibTom">
## <ManSection>
## <Attr Name="NotifiedFusionsOfLibTom" Arg='tom'/>
## <Attr Name="NotifiedFusionsOfLibTom" Arg='string'/>
## <Attr Name="FusionsOfLibTom" Arg='tom'/>
## <Attr Name="FusionsOfLibTom" Arg='string'/>
##
## <Description>
## Are there any fusions from the library table of marks <A>tom</A> or the
## table of marks with name <A>string</A> into other library tables marks?
## <P/>
## <C>NotifiedFusionsOfLibTom</C> returns the names of all such tables of marks.
## <C>FusionsOfLibTom</C> returns the complete fusion maps. For that the
## corresponding library file has to be loaded.
## </Description>
## </ManSection>
## <#/GAPDoc>
##
DeclareAttribute( "NotifiedFusionsOfLibTom",
IsTableOfMarks and IsLibTomRep );
DeclareAttribute( "NotifiedFusionsOfLibTom", IsString );
DeclareAttribute( "FusionsOfLibTom", IsTableOfMarks and IsLibTomRep );
DeclareAttribute( "FusionsOfLibTom", IsString );
#T what is the difference to `FusionsTom'?
#############################################################################
##
#A NotifiedFusionsToLibTom( <tom> )
#A NotifiedFusionsToLibTom( <string> )
#A FusionsToLibTom( <tom> )
#A FusionsToLibTom( <string> )
##
## <#GAPDoc Label="NotifiedFusionsToLibTom">
## <ManSection>
## <Attr Name="NotifiedFusionsToLibTom" Arg='tom'/>
## <Attr Name="NotifiedFusionsToLibTom" Arg='string'/>
## <Attr Name="FusionsToLibTom" Arg='tom'/>
## <Attr Name="FusionsToLibTom" Arg='string'/>
##
## <Description>
## Are there any fusions from other library table of marks to <A>tom</A> or the
## table of marks with name <A>string</A>.
## <P/>
## <C>NotifiedFusionsToLibTom</C> returns the names of all such tables of marks.
## <C>FusionsToLibTom</C> returns the complete fusion maps.
## For that, the correponding library files have to be loaded.
## </Description>
## </ManSection>
## <#/GAPDoc>
##
DeclareAttribute( "NotifiedFusionsToLibTom",
IsTableOfMarks and IsLibTomRep );
DeclareAttribute( "NotifiedFusionsToLibTom", IsString );
#T replace this by `NamesOfFusionSources'!!
DeclareAttribute( "FusionsToLibTom", IsTableOfMarks and IsLibTomRep );
DeclareAttribute( "FusionsToLibTom", IsString );
#############################################################################
##
#F UnloadTableOfMarksData()
##
## <#GAPDoc Label="UnloadTableOfMarksData">
## <ManSection>
## <Func Name="UnloadTableOfMarksData" Arg=''/>
##
## <Description>
## <C>UnloadTableOfMarksData</C> clears the cache of tables of marks.
## This can be used to free up to several hundred megabytes of space
## in the current &GAP; session.
## </Description>
## </ManSection>
## <#/GAPDoc>
##
DeclareGlobalFunction( "UnloadTableOfMarksData" );
#############################################################################
##
#E
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