def METHOD_NAME(self, lang = 'en_US'):
    # Get id_search_options values ($tab)
    lang = self.getLangValues(lang)
    # Get $LANG['common'] values
    a = os.popen("grep -rn '$tab' %s/inc/computer.class.php | grep \"\$LANG\" | grep -v \<td\>" % self.options.glpi_path).read().split('\n')
    a = [i.split(' ') for i in a]
    # put in a list result and remove PHP's ; end line
    b = []
    for i in a:
        tmp = [j.replace(';', '') for j in i if j != '']
        # tmp = ['php class file', '$tab', '=', '$LANG']
        if tmp:
            tmp.pop(0) # remove php class file
            tmp.pop(1) # remove '='
            b.append(tmp)
    # b is a list of [$tab[x], $LANG[x]]
    # Get Special values added by getSearchOptionsToAdd method
    a = os.popen("sed -n '/static function getSearchOptionsToAdd/,/function getSearchOptions/p' %s/inc/* | grep name | grep \$LANG" % self.options.glpi_path).read().split('\n')
    a = [i.split(' ') for i in a]
    # put in a list result and remove PHP's ; end line
    c = []
    for i in a:
        tmp = [j.replace(';', '') for j in i if j != '']
        # tmp = ['php class file', '$tab', '=', '$LANG']
        if tmp:
            tmp.pop(1) # remove '='
            c.append(tmp)
    # b is a list of [$tab[x], $LANG[x]]
    id_search_option = {}
    for i in b + c:
        value = []
        for val in i[1:]:
            val = val \
                .replace("\\",'') \
                .replace('."', '') \
                .replace('".', '') \
                .replace(".'", '') \
                .replace("'.", '') \
                .replace('.', '') \
                .replace('(', '') \
                .replace(')"', '') \
                .replace(',', '')
            if val.startswith('$LANG'):
                try:
                    value.append(lang[val])
                except:
                    try:
                        value.append(lang[val.replace('"', '\'')])
                    except:
                        value.append('')
            else:
                value.append(val)
            value = ["".join(j) for j in value]
        if 'name' in i[0]:
            key = int(i[0][5:-9]) # extract 'id' from $tab[id]['name']
            id_search_option[key] = "".join(value)
    return id_search_option