Bug Tracker

ID	301🔗
Date:	2025-04-03 09:46:31
Last update:	2025-04-03 12:41:15
Status	Closed (Fixed)
Category	datatool
Version	3.3
Summary	Strings containing <string> <number> E <number> <string> break parser

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Description

In v3.3, \DTLread breaks when reading a CSV file with option csv-content=literal, in case a string field contains a substring matching [0-9]+E[0-9]+ (that is: a sequence of digits with an 'E' in the middle).

I suspect that the type checker erroneously tries to consider the entry as a fp number written in scientific notation, and fails.

Minimal working example:

\documentclass{article}

\begin{filecontents}[overwrite]{test_db.csv}
Col1
AAA11E33
\end{filecontents}

\usepackage{datatool}

\DTLread[name={mydb},format=csv, csv-content=literal]{test_db.csv}

\begin{document}
We never reach this point
\end{document}

Error:

! Use of \??? doesn't match its definition.
<argument> \???
! LaTeX Error: Unknown fp word AAA.

MWE

Download (254B)

\documentclass{article}

\begin{filecontents}[overwrite]{test_db.csv}
Col1
AAA11E33
\end{filecontents}

\usepackage{datatool}

\DTLread[name={mydb},format=csv, csv-content=literal]{test_db.csv}%

\begin{document}
We never reach this point.
\end{document}

Evaluation

Yes, you're right. The regular expression needs to be anchored. I'll get that fixed.

Update: fixed in v3.4. Allow a few days for it to reach your TeX distribution.

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