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| 129 | .\" ======================================================================== |
| 130 | .\" |
| 131 | .IX Title "Locale::Language 3" |
| 132 | .TH Locale::Language 3 "2001-09-21" "perl v5.8.8" "Perl Programmers Reference Guide" |
| 133 | .SH "NAME" |
| 134 | Locale::Language \- ISO two letter codes for language identification (ISO 639) |
| 135 | .SH "SYNOPSIS" |
| 136 | .IX Header "SYNOPSIS" |
| 137 | .Vb 1 |
| 138 | \& use Locale::Language; |
| 139 | .Ve |
| 140 | .PP |
| 141 | .Vb 2 |
| 142 | \& $lang = code2language('en'); # $lang gets 'English' |
| 143 | \& $code = language2code('French'); # $code gets 'fr' |
| 144 | .Ve |
| 145 | .PP |
| 146 | .Vb 2 |
| 147 | \& @codes = all_language_codes(); |
| 148 | \& @names = all_language_names(); |
| 149 | .Ve |
| 150 | .SH "DESCRIPTION" |
| 151 | .IX Header "DESCRIPTION" |
| 152 | The \f(CW\*(C`Locale::Language\*(C'\fR module provides access to the \s-1ISO\s0 two-letter |
| 153 | codes for identifying languages, as defined in \s-1ISO\s0 639. You can either |
| 154 | access the codes via the \*(L"conversion routines\*(R" (described below), |
| 155 | or via the two functions which return lists of all language codes or |
| 156 | all language names. |
| 157 | .SH "CONVERSION ROUTINES" |
| 158 | .IX Header "CONVERSION ROUTINES" |
| 159 | There are two conversion routines: \f(CW\*(C`code2language()\*(C'\fR and \f(CW\*(C`language2code()\*(C'\fR. |
| 160 | .IP "\fIcode2language()\fR" 4 |
| 161 | .IX Item "code2language()" |
| 162 | This function takes a two letter language code and returns a string |
| 163 | which contains the name of the language identified. If the code is |
| 164 | not a valid language code, as defined by \s-1ISO\s0 639, then \f(CW\*(C`undef\*(C'\fR |
| 165 | will be returned. |
| 166 | .Sp |
| 167 | .Vb 1 |
| 168 | \& $lang = code2language($code); |
| 169 | .Ve |
| 170 | .IP "\fIlanguage2code()\fR" 4 |
| 171 | .IX Item "language2code()" |
| 172 | This function takes a language name and returns the corresponding |
| 173 | two letter language code, if such exists. |
| 174 | If the argument could not be identified as a language name, |
| 175 | then \f(CW\*(C`undef\*(C'\fR will be returned. |
| 176 | .Sp |
| 177 | .Vb 1 |
| 178 | \& $code = language2code('French'); |
| 179 | .Ve |
| 180 | .Sp |
| 181 | The case of the language name is not important. |
| 182 | See the section \*(L"\s-1KNOWN\s0 \s-1BUGS\s0 \s-1AND\s0 \s-1LIMITATIONS\s0\*(R" below. |
| 183 | .SH "QUERY ROUTINES" |
| 184 | .IX Header "QUERY ROUTINES" |
| 185 | There are two function which can be used to obtain a list of all |
| 186 | language codes, or all language names: |
| 187 | .ie n .IP """all_language_codes()""" 4 |
| 188 | .el .IP "\f(CWall_language_codes()\fR" 4 |
| 189 | .IX Item "all_language_codes()" |
| 190 | Returns a list of all two-letter language codes. |
| 191 | The codes are guaranteed to be all lower\-case, |
| 192 | and not in any particular order. |
| 193 | .ie n .IP """all_language_names()""" 4 |
| 194 | .el .IP "\f(CWall_language_names()\fR" 4 |
| 195 | .IX Item "all_language_names()" |
| 196 | Returns a list of all language names for which there is a corresponding |
| 197 | two-letter language code. The names are capitalised, and not returned |
| 198 | in any particular order. |
| 199 | .SH "EXAMPLES" |
| 200 | .IX Header "EXAMPLES" |
| 201 | The following example illustrates use of the \f(CW\*(C`code2language()\*(C'\fR function. |
| 202 | The user is prompted for a language code, and then told the corresponding |
| 203 | language name: |
| 204 | .PP |
| 205 | .Vb 1 |
| 206 | \& $| = 1; # turn off buffering |
| 207 | .Ve |
| 208 | .PP |
| 209 | .Vb 11 |
| 210 | \& print "Enter language code: "; |
| 211 | \& chop($code = <STDIN>); |
| 212 | \& $lang = code2language($code); |
| 213 | \& if (defined $lang) |
| 214 | \& { |
| 215 | \& print "$code = $lang\en"; |
| 216 | \& } |
| 217 | \& else |
| 218 | \& { |
| 219 | \& print "'$code' is not a valid language code!\en"; |
| 220 | \& } |
| 221 | .Ve |
| 222 | .SH "KNOWN BUGS AND LIMITATIONS" |
| 223 | .IX Header "KNOWN BUGS AND LIMITATIONS" |
| 224 | .IP "\(bu" 4 |
| 225 | In the current implementation, all data is read in when the |
| 226 | module is loaded, and then held in memory. |
| 227 | A lazy implementation would be more memory friendly. |
| 228 | .IP "\(bu" 4 |
| 229 | Currently just supports the two letter language codes \- |
| 230 | there are also three-letter codes, and numbers. |
| 231 | Would these be of any use to anyone? |
| 232 | .SH "SEE ALSO" |
| 233 | .IX Header "SEE ALSO" |
| 234 | .IP "Locale::Country" 4 |
| 235 | .IX Item "Locale::Country" |
| 236 | \&\s-1ISO\s0 codes for identification of country (\s-1ISO\s0 3166). |
| 237 | Supports 2\-letter, 3\-letter, and numeric country codes. |
| 238 | .IP "Locale::Script" 4 |
| 239 | .IX Item "Locale::Script" |
| 240 | \&\s-1ISO\s0 codes for identification of written scripts (\s-1ISO\s0 15924). |
| 241 | .IP "Locale::Currency" 4 |
| 242 | .IX Item "Locale::Currency" |
| 243 | \&\s-1ISO\s0 three letter codes for identification of currencies and funds (\s-1ISO\s0 4217). |
| 244 | .IP "\s-1ISO\s0 639:1988 (E/F)" 4 |
| 245 | .IX Item "ISO 639:1988 (E/F)" |
| 246 | Code for the representation of names of languages. |
| 247 | .IP "http://lcweb.loc.gov/standards/iso639\-2/langhome.html" 4 |
| 248 | .IX Item "http://lcweb.loc.gov/standards/iso639-2/langhome.html" |
| 249 | Home page for \s-1ISO\s0 639\-2. |
| 250 | .SH "AUTHOR" |
| 251 | .IX Header "AUTHOR" |
| 252 | Neil Bowers <neil@bowers.com> |
| 253 | .SH "COPYRIGHT" |
| 254 | .IX Header "COPYRIGHT" |
| 255 | Copyright (C) 2002\-2004, Neil Bowers. |
| 256 | .PP |
| 257 | Copyright (c) 1997\-2001 Canon Research Centre Europe (\s-1CRE\s0). |
| 258 | .PP |
| 259 | This module is free software; you can redistribute it and/or |
| 260 | modify it under the same terms as Perl itself. |