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ID	78🔗
Submitted by:	Nicola Talbot 🦜
Date:	2015-02-24 04:56:47
Status	Closed (Fixed)
Category	datatool
Version	2.22
Summary	`\DTLifSubString` fails inside `\DTLforeach`

Description

An error occurs when \DTLifSubString is used inside \DTLforeach. Error message:

Runaway argument?
\expandafter \dtl@ifsingle \expandafter {\dtl@first }{\expandafter \@dtl@testif
substring \ETC.
! Paragraph ended before \dtl@getfirst was complete.
<to be read again> 
                   \par 
l.19

MWE

Download (335B)

\documentclass{article}

\usepackage{datatool}

\begin{filecontents*}{xx.csv}
2014.02.26
2014.11.12.tm
mm
\end{filecontents*}

\begin{document}

\DTLloaddb[noheader,keys={RowID}]{newbDB}{xx.csv}

\DTLforeach*{newbDB}{\RowID=RowID}%
{%
   \DTLifSubString{2014.02.26,26,2014.11.12.tm}{\RowID}{}{}%
}%

\end{document}

Evaluation

It turns out this error isn't connected to \DTLforeach and can be reproduced with a far simpler example:

\documentclass{article}

\usepackage{datatool}

\begin{document}

\DTLifSubString{m}{mm}{TRUE}{FALSE}

\end{document}

This has now been fixed in v2.23.

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