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Internationalization and localization through gettext
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src/gettext_po_parser.yrl
Nonterminals grammar translations translation pluralizations pluralization
strings comments.
Terminals str msgid msgid_plural msgstr plural_form comment.
Rootsymbol grammar.
grammar ->
translations : '$1'.
translations ->
'$empty' : [].
translations ->
translation translations : ['$1'|'$2'].
translation ->
comments msgid strings msgstr strings : {translation, #{
comments => '$1',
msgid => '$3',
msgstr => '$5',
po_source_line => extract_line('$2')
}}.
translation ->
comments msgid strings msgid_plural strings pluralizations : {plural_translation, #{
comments => '$1',
msgid => '$3',
msgid_plural => '$5',
msgstr => plural_forms_map_from_list('$6'),
po_source_line => extract_line('$2')
}}.
pluralizations ->
pluralization : ['$1'].
pluralizations ->
pluralization pluralizations : ['$1'|'$2'].
pluralization ->
msgstr plural_form strings : {'$2', '$3'}.
strings ->
str : [extract_simple_token('$1')].
strings ->
str strings : [extract_simple_token('$1')|'$2'].
comments ->
'$empty' : [].
comments ->
comment comments : [extract_simple_token('$1')|'$2'].
Erlang code.
extract_simple_token({_Token, _Line, Value}) ->
Value.
extract_line({_Token, Line}) ->
Line.
plural_forms_map_from_list(Pluralizations) ->
Tuples = lists:map(fun extract_plural_form/1, Pluralizations),
maps:from_list(Tuples).
extract_plural_form({{plural_form, _Line, PluralForm}, String}) ->
{PluralForm, String}.