Thread: Keeping only A-Z . , in a text file

  1. #1
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    Keeping only A-Z . , in a text file

    Hi, im wanting to no, what is needed to remove all characters like $ from a text file, to leave only normal letters remaining? Thanks.

  2. #2
    Hurry Slowly vart's Avatar
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    read file (for example usinf fgetc)
    check char - using isupper, or isalpha or other suitable function
    write char to the new file if it is ok
    delete the old file and rename the new file

    if file is not too big:
    read file (for example usinf fgetc)
    check char - using isupper, or isalpha or other suitable function
    add it to the buffer if condition passed

    when the whole file is processed - overwrite it with the buffer prepared
    All problems in computer science can be solved by another level of indirection,
    except for the problem of too many layers of indirection.
    David J. Wheeler

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