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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%
%W obsolete.tex GAP documentation Frank Lbeck
%%
%H @(#)$Id: obsolete.tex,v 4.1.2.1 2005/08/24 14:32:55 gap Exp $
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\Chapter{Replaced and Removed Command Names}
\index{obsolete}
\index{deprecated}
\index{legacy}
In general we try to keep {\GAP}~4 compatible with former releases as much
as possible. Nevertheless, from time to time it seems appropriate to remove
some commands or to change the names of some commands or variables. There
are various reasons for that: Some functionality was improved and got
another (hopefully better) interface, names turned out to be too special or
too general for the underlying functionality, or names are found to be
unintuitive or inconsistent with other names.
In this chapter we collect such old names while pointing to the sections
which explain how to substitute them. Usually, old names will be available
for several releases; they may be removed when they don't seem to be used
any more.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\Section{Group Actions - Name Changes}
\index{group operations}
The concept of a group action is sometimes referred to as a ``group
operation''. In {\GAP}~3 as well as in older versions of {\GAP}~4 the term
`Operation' was used instead of `Action'. We decided to change the names to
avoid confusion with the term ``operation'' as in `DeclareOperation' and
``Operations for Xyz''.
Here are some examples of such name changes.
\indextt{Operation}
\indextt{RepresentativeOperation}
\indextt{OperationHomomorphism}
\indextt{FunctionOperation}
\begintt
OLD NOW USE
Operation Action
RepresentativeOperation RepresentativeAction
OperationHomomorphism ActionHomomorphism
FunctionOperation FunctionAction
\endtt
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\Section{Package Interface - Obsolete Functions and Name Changes}
With {\GAP}~4.4 the package interface was changed. Thereby some functions
became obsolete and the names of some others were made more consistent.
\indextt{DeclarePackage}
\indextt{DeclareAutoPackage}
\indextt{DeclarePackageDocumentation}
\indextt{DeclarePackageAutoDocumentation}
The following functions are no longer needed:
`DeclarePackage', `DeclareAutoPackage', `DeclarePackageDocumentation' and
`DeclarePackageAutoDocumentation'. They are substituted by entries in the
`PackageInfo.g' files, see "Ext:The PackageInfo.g File".
The following function names were changed.
\indextt{RequirePackage}
\indextt{ReadPkg}
\indextt{RereadPkg}
\indextt{CreateCompletionFilesPkg}
\begintt
OLD NOW USE
RequirePackage LoadPackage
ReadPkg ReadPackage
RereadPkg RereadPackage
CreateCompletionFilesPkg CreateCompletionFilesPackage
\endtt
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\Section{Normal Forms of Integer Matrices - Name Changes}
\index{Smith normal form}
\index{Hermite normal form}
Former versions of {\GAP}~4 documented several functions for computing the
Smith or Hermite normal form of integer matrices. Some of them were never
implemented and it was unclear which commands to use. The functionality
of all of these commands is now available with `NormalFormIntMat'
(see~"NormalFormIntMat") and a few interface functions.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\Section{Miscellaneous Name Changes or Removed Names}
\indextt{QUIET}
\indextt{BANNER}
\indextt{GAPInfo}
In former releases of {\GAP}~4 there were some global variable names bound
to general information about the running {\GAP} (path names, command line
options, ...). Although they were not officially documented they were used
by several users and in some packages. We mention here `BANNER' and `QUIET'.
This type of information is now collected in a record with name `GAPInfo'
and will become documented after a test phase.
Here are some further name changes.
\indextt{MonomialTotalDegreeLess}
\indextt{NormedVectors}
\begintt
OLD NOW USE
MonomialTotalDegreeLess MonomialExtGrlexLess
NormedVectors NormedRowVectors
\endtt
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