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Localization (parsing, formatting) of numbers, dates/time/calendar, units of measure, messages and lists. Includes localized collation.

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localize src decimal_formats_lexer.xrl
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src/decimal_formats_lexer.xrl 

% Tokenizes CLDR decimal formats which are described at

% http://unicode.org/reports/tr35/tr35-numbers.html#Number_Format_Patterns



Definitions.



Number                = ([@#,]*)?([0-9,]+)?(\.[0-9#,]+)?([Ee](\+)?[0-9]+)?

Percent               = %

Permille              = ‰

Plus                  = \+

Minus                 = \-

Semicolon             = ;

Currency              = ¤+

Pad                   = \*.

Quoted                = \'.\'

Quote                 = \'\'

Literal               = [^*@#0-9¤\+\-;%\']+



Rules.



{Number}              : {token,{format,TokenLine,TokenChars}}.

{Percent}             : {token,{percent,TokenLine,TokenChars}}.

{Permille}            : {token,{permille,TokenLine,TokenChars}}.

{Plus}                : {token,{plus,TokenLine,TokenChars}}.

{Minus}               : {token,{minus,TokenLine,TokenChars}}.

{Semicolon}           : {token,{semicolon,TokenLine,TokenChars}}.

{Currency}            : {token,{currency_symbol(length(TokenChars)),TokenLine,length(TokenChars)}}.

{Pad}                 : {token,{pad,TokenLine,[lists:nth(2,TokenChars)]}}.

{Quoted}              : {token,{quoted_char,TokenLine,[lists:nth(2, TokenChars)]}}.

{Quote}               : {token,{quote,TokenLine,["'"]}}.

{Literal}             : {token,{literal,TokenLine,TokenChars}}.



Erlang code.



currency_symbol(Len) ->

  list_to_atom("currency_" ++ integer_to_list(Len)).