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strawman attempt at adding array of booleans #537

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strawman attempt at adding array of booleans #537

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5 changes: 4 additions & 1 deletion VCFv4.3.tex
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Expand Up @@ -151,7 +151,10 @@ \subsubsection{Information field format}
\item . (dot): The number of possible values varies, is unknown or unbounded.
\end{itemize}

The `Flag' type indicates that the INFO field does not contain a Value entry, and hence the Number must be $0$ in this case.
The `Flag' type can indicate a single boolean value, or an array of boolean values.
To indicate one boolean value it can be defined with Number=$0$ and in this case the presence of the field tag indicates a "true" value, and its absence indicates a "false" value.
Alternatively, Number can take on other values (including 1) as described above. In that case the value of 1 will indicate "true" and 0 will indicate "false".

The Description value must be surrounded by double-quotes.
Double-quote character must be escaped with backslash $\backslash$ and backslash as $\backslash\backslash$.
Source and Version values likewise must be surrounded by double-quotes and specify the annotation source (case-insensitive, e.g.\ \verb|"dbsnp"|) and exact version (e.g.\ \verb|"138"|), respectively for computational use.
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