The most popular spellchecking library.
Distribution: hunspell-1.7.0.tar.gz
tar xvzf hunspell-1.7.0.tar.gz
cd hunspell-1.7.0
autoreconf -vfi
./configure
make
sudo make install
hunspell -d en_US -l file.txt webpage.html document.odt
Command line hunspell: hunspell1.pdf Hunspell library: hunspell3.pdf File formats: hunspell5.pdf
LibreOffice language technology – News & Best practices by László Németh, Tirana, 2018
New features and bug fixes by László Németh, supported by FSF.hu Foundation:
No annoying suggestion times any more, especially in languages with compound word handling and complex morphology. By adding balanced multi-level time limits, now the guaranteed suggestion time is there within half a second, not seconds (nor dozen of seconds or more in extreme cases) for longer misspellings, too.
add SPELLML support for run-time dictionary extension with optional affixation of user words. See new "Grammar By" feature of language-specific user dictionaries of LibreOffice 6.0:
News: https://wiki.documentfoundation.org/ReleaseNotes/6.0#.E2.80.9CGrammar_By.E2.80.9D_spell_checking
Screencast with English example: https://www.youtube.com/watch?v=EsS3gaBTfOo
Screencast with German example: https://www.youtube.com/watch?v=aYVFDqCUb6I
Improved, highly customizable suggestions on level of dictionary words: Pronunciations and typical misspellings defined by optional "ph:" fields of the dictionary words are used not only in n-gram suggestions, but as elements of the REP replacement list getting the highest priority in normal suggestions, also giving the best suggestions for short words, too. More information: see "ph:" in man 5 hunspell.
Handling multiple word suggestions is much more easier. Like in a traditional spelling dictionary, for example, to get the correct suggestion "a lot" for the typical misspelling "alot" at the first place, now it's enough to put the following line to the dic(tionary) file:
a lot
Limit compound overgeneration by dictionary based word pairs: Now it's possible to filter bad compound words by listing the correct word pairs with space in the dictionary, as in a traditional spelling dictionary.
clean-up suggestion:
no n-gram and compound word suggestions, if "good" suggestion exists, ie. uppercase, REP, ph: or dictionary word pair suggestions
word pairs are always suggested, if they exist in the dic file
word pairs have top priority in suggestions, and these are the only suggestions if there is no other good suggestion.
also dictionary word pairs separated by dash instead of space are handled specially in two-word suggestion (depending from the language)
limit bad suggestions by improved n-gram suggestion rules:
don't suggest capitalized dictionary words for lower case misspellings in n-gram suggestions, except
and don't suggest if the difference of lengths of misspellings and suggestions is 5 or more characters.
Extend dotless i and dotted I rules to Crimean Tatar language Allow dotted I in dictionary, and disable bad capitalization of i.
BREAK: extended recursive word breaking algorithm to handle words or words with suffixes when they already contain word break characters, for example, "e-mail" is a dictionary word with a word break character, and it wasn't accepted before in compounds in some languages.
FORBIDDENWORD precedes BREAK: Now it's possible to forbid compound forms recognized by BREAK word breaking by adding the bad compounds to the dictionary with FORBIDDENWORD flags.
lower limit for "doubletwochars" suggestion algorithm: one of the typical misspellings recognized by Hunspell suggestion mechanism is the syllable duplication. Along the old pattern ABABA -> ABA, for example nutrITITIon -> nutrITIon, now also the simpler ABAB -> AB pattern is recognized in non-starting position, for example, regretTETEd -> regretTEd.
lower limit for longswapchar and movechar: recognized only max. 4-character distances to avoid slow and bad suggestions.
fix compound handling for new Hungarian orthography reform
Allow suggestion search for prefix + two suffixes: Remove artificial performance limit to get correct suggestions for relatively simple misspellings in Hungarian, etc., when the word form contains prefix and both derivative and inflectional suffixes, too:
lefikszálása -> lefixálása
Improvements for command-line Hunspell:
Remove false alarms during checking OpenDocument (ODF)
documents by ignoring <text:span> elements. (LibreOffice
creates a lot of <text:span> elements also within words
during text reediting, resulted often huge amount of broken
words before this fix.)
List filenames during filtering multiple files in command-line:
Examples:
$ hunspell -l *.odt
a.odt: mispelling
b.odt: egzample
$ hunspell -l -G *.odt
a.odt: good
b.odt: words
Other improvements:
makealias dictionary compression: add option --minimize-diff to reuse free positions of alias lists to create minimal and readable diffs for alias compressed dictionaries stored in revision control systems, as dictionaries of LibreOffice.
Brazilian-Portuguese translation by Rafael Fontenelle
Catalan translation by robert dot buj at gmail
Minor bug fixes by several contributors, see git log
ngsuggest(), suggestions should be faster.MAXWORDLEN to 100 as in 1.3.3 for performance reasons.MAXWORDLEN can be set during build time with -D defines.-D shows all loaded dictionares insted of only the first.-D properly lists all available dictionaries on Windows.Fixes bug related to the Hungarian dictionary and the command COMPOUNDSYLLABLE
Fixes backward compatibility with 1.4 at API level. Now it should be complete.