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|
#############################################################################
##
#W tmdbatt2.g GAP 4 package `browse' Thomas Breuer
##
## This file contains
## - the global record `TomLibData',
## whose components are used to define the database id enumerator
## `TomLibData.IdEnumerator' and its database attributes
## (see the GAP package `Browse' for technical details) and
## - the Browse application `BrowseTomLibInfo',
## showing an overview of the GAP library of tables of marks.
##
#############################################################################
##
#V TomLibData
##
## We introduce a new global variable for ``database aspects''.
##
BindGlobal( "TomLibData", rec() );
#############################################################################
##
## Provide utilities for the computation of database attribute values.
## They allow one to access table data without actually creating the tables.
##
TomLibData.MyIdFunc:= function( arg ); end;
TomLibData.TABLE_ACCESS_FUNCTIONS:= [
rec(),
rec( # These global variables are used in the data files.
LIBTOMKNOWN := rec( LOADSTATUS := rec(), UNLOAD := false,
MAX := infinity ),
SetActualLibFileName := TomLibData.MyIdFunc,
AFLT := TomLibData.MyIdFunc,
ACLT := TomLibData.MyIdFunc,
LIBTOM := TomLibData.MyIdFunc,
) ];
TomLibData.SaveTableAccessFunctions := function()
local name;
if TomLibData.TABLE_ACCESS_FUNCTIONS[1] <> rec() then
Info( InfoTom, 2, "access functions were already saved" );
return;
fi;
for name in RecNames( TomLibData.TABLE_ACCESS_FUNCTIONS[2] ) do
TomLibData.TABLE_ACCESS_FUNCTIONS[1].( name ):= [ ValueGlobal( name ) ];
if IsReadOnlyGlobal( name ) then
Add( TomLibData.TABLE_ACCESS_FUNCTIONS[1].( name ), "readonly" );
MakeReadWriteGlobal( name );
fi;
UnbindGlobal( name );
ASS_GVAR( name, TomLibData.TABLE_ACCESS_FUNCTIONS[2].( name ) );
od;
end;
TomLibData.RestoreTableAccessFunctions := function()
local name;
if TomLibData.TABLE_ACCESS_FUNCTIONS[1] = rec() then
Info( InfoTom, 2, "access functions were not saved" );
return;
fi;
for name in RecNames( TomLibData.TABLE_ACCESS_FUNCTIONS[2] ) do
UnbindGlobal( name );
ASS_GVAR( name, TomLibData.TABLE_ACCESS_FUNCTIONS[1].( name )[1] );
if Length( TomLibData.TABLE_ACCESS_FUNCTIONS[1].( name ) ) = 2 then
MakeReadOnlyGlobal( name );
fi;
Unbind( TomLibData.TABLE_ACCESS_FUNCTIONS[1].( name ) );
od;
end;
#############################################################################
##
#F TomLibData.ComputeTableInfoByScanningLibraryFiles( <pairs> )
##
## The argument <A>pairs</A> must be a list of pairs
## <C>[ <A>nam</A>, <A>fun</A> ]</C>
## where <A>nam</A> is the name of a function to be reassigned during the
## reread process (such as <C>"LIBTOM"</C>),
## and <A>fun</A> is the intended value.
##
TomLibData.ComputeTableInfoByScanningLibraryFiles :=
function( pairs )
local pair, name;
# Disable the table library access.
TomLibData.SaveTableAccessFunctions();
# Define appropriate access functions.
for pair in pairs do
ASS_GVAR( pair[1], pair[2] );
od;
# Clear the cache.
TomLibData.TableInfo:= rec();
# Loop over the library files.
for name in LIBTOMLIST.files do
ReadPackage( "tomlib", Concatenation( "data/", name, ".tom" ) );
od;
# Restore the ordinary table library access.
TomLibData.RestoreTableAccessFunctions();
end;
#############################################################################
##
#F TomLibData.PrepareAttributeComputation()
##
TomLibData.PrepareAttributeComputation:= function()
if not IsBound( TomLibData.TableInfo ) then
TomLibData.ComputeTableInfoByScanningLibraryFiles( [
[ "LIBTOM", function( arg )
TomLibData.TableInfo.( arg[1] ):= rec(
SubsTom:= arg[2],
MarksTom:= arg[3],
OrdersTom:= arg[5] );
end ] ] );
fi;
end;
#############################################################################
##
## Create the database id enumerator to which the database attributes refer.
##
TomLibData.IdEnumerator:= DatabaseIdEnumerator( rec(
identifiers:= Set( AllLibTomNames() ),
entry:= function( idenum, id ) return TableOfMarks( id ); end,
isSorted:= true,
viewLabel:= "G",
viewSort:= function( nam1, nam2 )
return BrowseData.SplitStringIntoNumbersAndNonnumbers( nam1 )
<= BrowseData.SplitStringIntoNumbersAndNonnumbers( nam2 );
end,
align:= "tl",
) );;
#############################################################################
##
#V TomLibData.IdEnumerator.attributes.Size
##
DatabaseAttributeAdd( TomLibData.IdEnumerator, rec(
identifier:= "Size",
description:= "group orders of GAP library tables of marks",
type:= "values",
viewLabel:= "|G|",
align:= "tr",
create:= function( attr, id )
local r, i;
TomLibData.PrepareAttributeComputation();
if IsBound( TomLibData.TableInfo.( id ) ) then
r:= TomLibData.TableInfo.( id );
if IsList( r.OrdersTom ) then
return r.OrdersTom[ Length( r.OrdersTom ) ];
elif IsList( r.SubsTom ) and IsList( r.MarksTom ) then
i:= Length( r.SubsTom );
return r.MarksTom[1][1] /
r.MarksTom[i][ Position( r.SubsTom[i], 1 ) ];
fi;
fi;
return fail;
end,
viewSort:= BrowseData.CompareAsNumbersAndNonnumbers,
sortParameters:= [ "add counter on categorizing", "yes" ],
) );
#############################################################################
##
#V TomLibData.IdEnumerator.attributes.NrClasses
##
DatabaseAttributeAdd( TomLibData.IdEnumerator, rec(
identifier:= "NrClasses",
description:= "numbers of classes of GAP library tables of marks",
type:= "values",
viewLabel:= "# classes",
align:= "tr",
create:= function( attr, id )
local r;
TomLibData.PrepareAttributeComputation();
if IsBound( TomLibData.TableInfo.( id ) ) then
r:= TomLibData.TableInfo.( id );
if IsList( r.SubsTom ) then
return Length( r.SubsTom );
fi;
fi;
return fail;
end,
viewSort:= BrowseData.CompareAsNumbersAndNonnumbers,
sortParameters:= [ "add counter on categorizing", "yes" ],
) );
#############################################################################
##
#V TomLibData.IdEnumerator.attributes.Filename
##
DatabaseAttributeAdd( TomLibData.IdEnumerator, rec(
identifier:= "Filename",
description:= "filenames of GAP library tables of marks",
type:= "values",
align:= "tl",
create:= function( attr, id )
local pos;
pos:= Position( LIBTOMLIST.names, LowercaseString( id ) );
if pos = fail then
return fail;
fi;
return Concatenation( LIBTOMLIST.files[ LIBTOMLIST.positions[ pos ][1] ],
".tom" );
end,
sortParameters:= [ "add counter on categorizing", "yes" ],
) );
#############################################################################
##
#V TomLibData.IdEnumerator.attributes.FusionsFrom
##
DatabaseAttributeAdd( TomLibData.IdEnumerator, rec(
identifier:= "FusionsFrom",
description:= "fusions from other tables of marks to the given one",
type:= "values",
align:= "tl",
categoryValue:= function( val )
if IsEmpty( val ) then
return "(no fusions to these tables)";
fi;
return List( val, x -> Concatenation( "fusions from ", x ) );
end,
create:= function( attr, id )
# Make sure that no tables of marks are constructed here!
return DuplicateFreeList( List( NotifiedFusionsToLibTom( id ),
x -> x[1] ) );
end,
viewValue:= x -> rec( rows:= x, align:= "tl" ),
viewLabel:= "fusions -> G",
sortParameters:= [ "add counter on categorizing", "yes",
"split rows on categorizing", "yes" ],
) );
#############################################################################
##
#V TomLibData.IdEnumerator.attributes.FusionsTo
##
DatabaseAttributeAdd( TomLibData.IdEnumerator, rec(
identifier:= "FusionsTo",
description:= "fusions from the given table of marks to other ones",
type:= "values",
align:= "tl",
categoryValue:= function( val )
if IsEmpty( val ) then
return "(no fusions from these tables)";
fi;
return List( val, x -> Concatenation( "fusions to ", x ) );
end,
create:= function( attr, id )
# Make sure that no tables of marks are constructed here!
return DuplicateFreeList( List( NotifiedFusionsOfLibTom( id ),
x -> x[1] ) );
end,
viewValue:= x -> rec( rows:= x, align:= "tl" ),
viewLabel:= "fusions G ->",
sortParameters:= [ "add counter on categorizing", "yes",
"split rows on categorizing", "yes" ],
) );
#############################################################################
##
#F BrowseTomLibInfo()
##
#T Admit an argument, as in BrowseTransitiveGroupsInfo?
##
BindGlobal( "BrowseTomLibInfo", function()
NCurses.BrowseGeneric(
BrowseTableFromDatabaseIdEnumerator( TomLibData.IdEnumerator,
[ "self" ],
[ "Size", "NrClasses", "FusionsFrom", "FusionsTo", "Filename" ],
t -> BrowseData.HeaderWithRowCounter( t,
"GAP Tables of Marks Library Overview", t.work.m ) ) );
end );
#############################################################################
##
#E
|
