27 Adding a Local Dictionary to Spell


#27 Adding a Local Dictionary to Spell

Missing in both Script #25 and Script #26, and certainly missing in most spell-check implementations on stock Unix distributions, is the ability for a user to add words to a personal spelling dictionary so that they're not flagged over and over again. Fortunately, adding this feature is straightforward.

The Code

 #!/bin/sh # spelldict - Uses the 'aspell' feature and some filtering to allow easy #    command-line spell-checking of a given input file. # Inevitably you'll find that there are words it flags as wrong but # you think are fine. Simply save them in a file, one per line, and # ensure that the variable 'okaywords' points to that file. okaywords="$HOME/okaywords" tempout="/tmp/spell.tmp.$$" spell="aspell"                  # tweak as needed trap "/bin/rm -f $tempout" EXIT if [ -z "" ] ; then   echo "Usage: spell fileURL" >&2; exit 1 elif [ ! -f $okaywords ] ; then   echo "No personal dictionary found. Create one and rerun this command" >&2   echo "Your dictionary file: $okaywords" >&2   exit 1 fi for filename do   $spell -a < $filename  \   grep -v '@(#)'  sed "s/\'//g"  \      awk '{ if (length( 
 #!/bin/sh # spelldict - Uses the 'aspell' feature and some filtering to allow easy # command-line spell-checking of a given input file. # Inevitably you'll find that there are words it flags as wrong but # you think are fine. Simply save them in a file, one per line, and # ensure that the variable 'okaywords' points to that file. okaywords="$HOME/okaywords" tempout="/tmp/spell.tmp.$$" spell="aspell" # tweak as needed trap "/bin/rm -f $tempout" EXIT if [ -z "$1" ] ; then echo "Usage: spell fileURL" >&2; exit 1 elif [ ! -f $okaywords ] ; then echo "No personal dictionary found. Create one and rerun this command" >&2 echo "Your dictionary file: $okaywords" >&2 exit 1 fi for filename do $spell -a < $filename  \ grep -v '@(#)'  sed "s/\'//g"  \ awk '{ if (length($0) > 15 && length($2) > 2) print $2 }'  \ grep -vif $okaywords  \ grep '[[:lower:]]'  grep -v '[[:digit:]]' sort -u  \ sed 's/^/ /' > $tempout if [ -s $tempout ] ; then sed "s/^/${filename}: /" $tempout fi done exit 0 
) > 15 && length() > 2) print }' \ grep -vif $okaywords \ grep '[[:lower:]]' grep -v '[[:digit:]]' sort -u \ sed 's/^/ /' > $tempout if [ -s $tempout ] ; then sed "s/^/${filename}: /" $tempout fi done exit 0

How It Works

Following the model of the Microsoft Office spell-checking feature, this script not only supports a user-defined dictionary of correctly spelled words that the spell-checking program would otherwise think are wrong, it also ignores words that are in all uppercase (because they're probably acronyms) and words that contain a digit.

This particular script is written to use aspell , which interprets the -a flag to mean that it's running in pass-through mode, in which it reads stdin for words, checks them, and outputs only those that it believes are misspelled . The ispell command also requires the -a flag, and many other spell-check commands are smart enough to automatically ascertain that stdin isn't the keyboard and there-fore should be scanned. If you have a different spell-check utility on your system, read the man page to identify which flag or flags are necessary.

Running the Script

This script requires one or more filenames to be specified on the command line.

The Results

First off, with an empty personal dictionary and the excerpt from Alice in Wonderland seen previously, here's what happens:

 $  spelldict ragged.txt  ragged.txt:    herrself ragged.txt:    teacups ragged.txt:    Gryphon ragged.txt:    clamour 

Two of those are not misspellings, so I'm going to add them to my personal spelling dictionary by using the echo command to append them to the okaywords file:

 $  echo "Gryphon" >> ~/.okaywords  $  echo "teacups" >> ~/.okaywords  

Here are the results of checking the file with the expanded spelling dictionary:

 $  spelldict ragged.txt  ragged.txt:    herrself ragged.txt:    clamour 



Wicked Cool Shell Scripts. 101 Scripts for Linux, Mac OS X, and Unix Systems
Wicked Cool Shell Scripts
ISBN: 1593270127
EAN: 2147483647
Year: 2004
Pages: 150
Authors: Dave Taylor

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