Expanding the spellchecking lists used by Ispell or Aspell
Q I wish to expand the spellchecking lists used by Ispell or Aspell into a plain list of words in alphabetical order. I want to know how the compression algorithms work, but I can't seem to find any information explaining this. If I knew this I could write a program to decompress the lists - or perhaps use an existing program if there is one included with Ispell or Aspell.
A This can be done with both Ispell and Aspell, although the task is much easier with Aspell, where you use the Aspell program itself, like this:
aspell dump master
to output the master word list, one word per line. If you want them in alphabetical order, pipe the output through sort
aspell dump master | sort
The output from aspell dump can be used as the input for aspell create, so you can dump the word list to a file, edit it then feed it back to aspell create to build a new dictionary.
aspell --lang=LANG create master ./mydict <mywordlist
Although it is possible to manipulate Ispell dictionaries in a broadly similar manner, the process is more involved, so I'd stick with Aspell for this unless you have a particular reason for using Ispell.
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