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Delete lines in a Wordlist.txt that contain specified chars

Chris Bart
Posted 6 years ago

Hello community, I started to learn Wolfram Mathematica v12.0 some days ago and now I want to solve a little Problem.

There is a Wordlist.txt with German, Chinese and some other signs/symbols in it. Now I want to remove every line/word in it, that contains something different then “abc..., ABC....,123...., and !?”.

I did many exercises and one of them was about strings, but I don’t understand how to put those things together yet.

Thanks for some help, with best regards :3

p.s. sorry about my English, missed practicing a very long time :0
POSTED BY: Chris Bart
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Chris Bart
Chris Bart
Posted 6 years ago

Hello Rohit,

Yes this is exactly what I was thinking of and it works great. Thank you for your time and effort.

Have a nice day.

Greetings,

Christian
POSTED BY: Chris Bart
Rohit Namjoshi
Rohit Namjoshi
Posted 6 years ago

Hi Christian,

I created a sample file wordlist.txt (see attached).

includeChars = {CharacterRange["A", "Z"], CharacterRange["a", "z"], 
    CharacterRange["0", "9"], "!", "?", " "} // Flatten;

wordList = Import["~/wordlist.txt", "Data"]

filtered = wordList // Select[StringFreeQ[#, Except[includeChars]] &]

Export["~/filteredList.txt", filtered]

The file filteredList.txt has the lines that only have the characters in includeChars.

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