pTAL Conversion Guide

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pTAL Conversion Guide—527302-002
xxix
Syntax Diagram Conventions
Spacing rules are:
•
If the arrow between two diagram pieces is labelled “ns,” put no spaces between
the syntactic items that they represent. For example:
means that you type:
$NEWVOL
not
$ NEWVOL
•
An “ns” on the top line of a choice structure applies to the lower lines in the choice
structure as well. For example:
means that you type one of the following:
"^RETURN^SORT^ERRORS"
"RETURN_SORT_ERRORS_"
•
If two diagram pieces are not separated by a separator character (such as a
comma, semicolon, or parenthesis), separate the syntactic items that they
represent by at least one space or a new line. For example:
means that you type:
MULTIPLY 3 4
not
MULTIPLY34
ns
$
volume
VST420.vsd
VST185.vsd
RETURN^SORT^ERRORS
"
RETURN_SORT_ERRORS_
ns
"
ns
VST410.vsd
MULTIPLY
integer1 integer2