Why does the REGEXPREP function return incorrect results in MATLAB 7.0 (R14)?

In MATLAB 7.0 (R14), the REGEXPREP function (and several other REGEXP functions) on some installations returns incorrect results. For example:

str = 'My flowers may bloom in May';
pat = 'm(\w*)y';
regexprep(str, pat, 'April')

The correct output is:\n

My flowers April bloom in May

However, on my computer, I observe:\n

My flowers may bloom in May

Answer 1

[MathWorks Support Team]

This bug has been fixed for Release 14 SP1 (R14SP1). For previous releases, please read below for any possible workarounds:

We have verified there is a bug in MATLAB 7.0 (R14) in the way that MATLAB handles an environmental variable on the system PATH called ICU_DATA.

For information about how to resolve this issue, see the following URL:

https://www.mathworks.com/matlabcentral/answers/101460-why-am-i-experiencing-problems-with-the-international-components-for-unicode-icu-libraries-in-matl