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authorallen <allen@17b73243-c579-4c4c-a9d2-2d5706c11dac>2002-12-10 19:37:23 +0000
committerallen <allen@17b73243-c579-4c4c-a9d2-2d5706c11dac>2002-12-10 19:37:23 +0000
commitd858a94c870da57da425809e7483509ab3f28319 (patch)
treefa33abb9d45e0b0f58461db9f8430c2b04b96493
parent1f189bbcd9978ea9c19d30879b4469cc4637464e (diff)
Making it clear that group and variable names all have to be unique within the scope of a thorn, unless the group only contains a single element, in which case there can be no confusion.
git-svn-id: http://svn.cactuscode.org/flesh/trunk@3036 17b73243-c579-4c4c-a9d2-2d5706c11dac
-rw-r--r--doc/UsersGuide/Appendices.tex7
1 files changed, 4 insertions, 3 deletions
diff --git a/doc/UsersGuide/Appendices.tex b/doc/UsersGuide/Appendices.tex
index dc93fdc0..698c8aaa 100644
--- a/doc/UsersGuide/Appendices.tex
+++ b/doc/UsersGuide/Appendices.tex
@@ -199,7 +199,7 @@ carriage return.
group. Supported data types are {\t INT}, {\t CHAR}, {\t REAL} and
{\t COMPLEX}.
\item{} {\t group\_name} must be an alpha-numeric name (which may also
-contain underscores) which is unique
+contain underscores) which is unique across group and variable names
within the scope of the thorn. A group name is compulsory.
\item{} {\t [number]}, if present, indicates that this is a {\bf vector}
group. Such a group does not have named variables (so the \{\} block
@@ -234,12 +234,13 @@ optional, with the default variable type being {\t SCALAR}.
\item{} The (optional) block following the group declaration line
contains a list of variables contained in the group. All variables in
a group have the same data type, variable type, dimension and
-distrubution. The list
+distribution. The list
can be separated by spaces, commas, or new lines. The variable names
must be unique within the scope of the thorn. A variable can only be
a member of one group. The block must be delimited by brackets on new
lines. If no block is given after a group declaration line, a
-variable with the same name as the group is created.
+variable with the same name as the group is created. Apart from this case,
+a group name cannot be the same as the name of any variable seen by this thorn.
\item{} An optional description of the group can be given on the last
line, at the moment this description is not used for any purpose. (Note that
the variable block is required if you want to give a group description.)