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ex_cldr_numbers src rbnf_lexer.xrl
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src/rbnf_lexer.xrl

% Lexer for the ICU/CLDR Rule Based Number Formatting rule definitions.
% Step 1 is to read in the json rule set.
% Then for each ruleset, pass each rule to the parser in two parts:
% First the rule name
% THen the rule definition
%
% Can be invoked in elixir as:
%
% iex> :rbnf.string(rules_set_as_a_char_list)
%
Definitions.
Rule_cardinal_start = (cardinal)
Rule_ordinal_start = (ordinal)
Plural_rules = (zero\{.+\})?(one\{.+\})?(two\{.+\})?(few\{.+\})?(many\{.+\})?(other\{.+\})?
Rule_name = (%[%a-zA-Z0-9\-]+)
Number_format = ([0#]([0#,]+)?)(\.([0#]+))?([eE]([-+]?[0#]+))?
Conditional_start = \[
Conditional_end = \]
Left_paren = \(
Right_paren = \)
Greater_than = [>]
Less_than = [<]
Equals = =
Dollar = \$
Semicolon = ;
Comma = ,
Char = .
Rules.
% This part is for the definitions.
{Rule_cardinal_start} : {token,{rule_cardinal_start,TokenLine,TokenChars}}.
{Rule_ordinal_start} : {token,{rule_ordinal_start,TokenLine,TokenChars}}.
{Number_format} : {token,{number_format,TokenLine,TokenChars}}.
{Rule_name} : {token,{rule_name,TokenLine,TokenChars}}.
{Conditional_start} : {token,{conditional_start,TokenLine,TokenChars}}.
{Conditional_end} : {token,{conditional_end,TokenLine,TokenChars}}.
{Greater_than} : {token,{modulo_call,TokenLine,TokenChars}}.
{Less_than} : {token,{quotient_call,TokenLine,TokenChars}}.
{Equals} : {token,{rule_call,TokenLine,TokenChars}}.
{Semicolon} : {token,{rule_end,TokenLine,TokenChars}}.
{Plural_rules} : {token,{plural_rules,TokenLine,TokenChars}}.
{Right_paren} : {token,{right_paren,TokenLine,TokenChars}}.
{Left_paren} : {token,{left_paren,TokenLine,TokenChars}}.
{Dollar} : {token,{dollar,TokenLine,TokenChars}}.
{Comma} : {token,{comma,TokenLine,TokenChars}}.
{Char} : {token,{char,TokenLine,TokenChars}}.
Erlang code.