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Wolfram Language

[?] Simple rewrite rule using String function works but shows error?

Markus Sonderegger

Posted 8 years ago

I used Matlab/Mathematica during my PhD in 1993 and now trying to learn the fascinating Wolfram Language. So this might be a newby question so bear with me. The below simple expression {"a.del", "b.del", "c.del"} /. s__ -> StringDelete[s, ".del"] generates the expectecd content {"a", "b", "c"} but generates also the following error StringDelete::strse: String or list of strings expected at position 1 in StringDelete[s,.del]. What am I doing wrong? Thanks for your help. Regards Markus

POSTED BY: Markus Sonderegger

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Gustavo Delfino

Posted 8 years ago

Notice that these also work: In[1]:= StringDelete[".del"] /@ {"a.del","b.del","c.del"} Out[1]= {a,b,c} In[2]:= StringDelete[".del"][{"a.del","b.del","c.del"}] Out[2]= {a,b,c} In[3]:= StringDelete[{"a.del","b.del","c.del"},".del"] Out[3]= {a,b,c}

Notice that these also work:

In[1]:= StringDelete[".del"] /@ {"a.del","b.del","c.del"}
Out[1]= {a,b,c}

In[2]:= StringDelete[".del"][{"a.del","b.del","c.del"}]
Out[2]= {a,b,c}

In[3]:= StringDelete[{"a.del","b.del","c.del"},".del"]
Out[3]= {a,b,c}

POSTED BY: Gustavo Delfino