• jQuery data data-ignore-articles="fr".
• metadata class="{ ignoreArticles : 'fr' }". This requires the metadata plugin.
• headers option headers : { 0 : { ignoreArticles : 'fr' } }.
• header class name class="ignoreArticles-fr".

• jQuery data data-ignore-articles-except="a to".
• metadata class="{ ignoreArticlesExcept : 'a to' }". This requires the metadata plugin.
• headers option headers : { 0 : { ignoreArticlesExcept : 'a to' } }.

headers: {
  0: {
    ignoreArticles : 'en',
    // no special parsing for titles like "A to Z" or "A B C" or "A One"
    ignoreArticlesExcept : 'a to|a b |a one'
  }
}

$.extend( $.tablesorter.ignoreArticles, {
  "xx" : "a, l'_, de la"
});

$('table').tablesorter({
  headers: {
    2: {
      sorter: 'ignoreArticles',
      ignoreArticles : 'xx',
      ignoreArticlesExcept : 'a to'
    }
  }
});

• where xx is the ignoreArticles id (abbreviation for the language)
• Each leading article must be separated by a comma and will be case-insensitive.
• Leading articles will only be removed if they are followed by a space; spaces are automatically included when parsed unless the article definition is followed by an underscore. See the l'_ note below.
• a is an example of a leading article which will be removed. So, "A Fistfull of Dollars" will only parse "Fistfull of Dollars" and will sort with the other words that start with an "F".
• l'_ includes an underscore (_); this tells the parser to not add a space after the word. So a title like "l'enfant" will parse as "enfant".
• de la is an example showing that the parser can remove a multiple-word article.

$.tablesorter.ignoreArticles = {
  "en" : "the, a, an",
  "de" : "der, die, das, des, dem, den, ein, eine, einer, eines, einem, einen",
  "nl" : "de, het, de, een",
  "es" : "el, la, lo, los, las, un, una, unos, unas",
  "pt" : "o, a, os, as, um, uma, uns, umas",
  "fr" : "le, la, l'_, les, un, une, des",
  "it" : "il, lo, la, l'_, i, gli, le, un', uno, una, un",
  "hu" : "a, az, egy"
};