Add "metric" formatting
This commit is contained in:
parent
5a145207da
commit
b219d0f784
@ -5,7 +5,7 @@
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-module(hz_format).
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-export([price/1, price/2, price/3, price/4,
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read/1, read/2,
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% read/1, read/2,
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price_to_string/1, string_to_price/1]).
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-spec price(Pucks) -> Formatted
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@ -20,13 +20,13 @@ price(Pucks) ->
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-spec price(Style, Pucks) -> Formatted
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when Style :: us | ch | jp | {Separator, Myriad},
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Separator :: $, | $. | $_,
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Myriad :: 3 | 4,
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when Style :: us | jp | metric | heresy | {Separator, Span},
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Separator :: $, | $_,
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Span :: 3 | 4,
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Pucks :: integer(),
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Formatted :: string().
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%% @doc
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%% A convenient formatting function.
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%% A money formatting function.
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%% @equiv price(gaju, Style, Pucks).
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price(Style, Pucks) ->
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@ -35,9 +35,9 @@ price(Style, Pucks) ->
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-spec price(Unit, Style, Pucks) -> Formatted
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when Unit :: gaju | puck,
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Style :: us | ch | jp | {Separator, Myriad},
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Separator :: $, | $. | $_,
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Myriad :: 3 | 4,
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Style :: us | jp | metric | heresy | {Separator, Span},
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Separator :: $, | $_,
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Span :: 3 | 4,
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Pucks :: integer(),
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Formatted :: string().
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%% @doc
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@ -47,27 +47,24 @@ price(gaju, us, Pucks) ->
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western($,, $., 3, all, Pucks);
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price(puck, us, Pucks) ->
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western($,, 3, Pucks);
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price(gaju, ch, Pucks) ->
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western($., $,, 3, all, Pucks);
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price(puck, ch, Pucks) ->
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western($,, 3, Pucks);
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price(Unit, jp, Pucks) ->
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jp(Unit, all, Pucks);
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price(gaju, {$., Myriad}, Pucks) ->
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western($., $,, Myriad, all, Pucks);
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price(gaju, {Separator, Myriad}, Pucks) ->
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western(Separator, $., Myriad, all, Pucks);
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price(puck, {Separator, Myriad}, Pucks) ->
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western(Separator, Myriad, Pucks).
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price(Unit, metric, Pucks) ->
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bestern(Unit, ranks(metric), all, Pucks);
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price(Unit, heresy, Pucks) ->
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bestern(Unit, ranks(heresy), all, Pucks);
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price(gaju, {Separator, Span}, Pucks) ->
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western(Separator, $., Span, all, Pucks);
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price(puck, {Separator, Span}, Pucks) ->
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western(Separator, Span, Pucks).
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-spec price(Unit, Style, Precision, Pucks) -> Serialized
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when Unit :: gaju | puck,
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Style :: us | ch | jp | {Separator, Myriad},
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Style :: us | jp | metric | heresy | {Separator, Span},
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Precision :: all | 0..18,
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Separator :: $, | $. | $_,
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Myriad :: 3 | 4,
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Separator :: $, | $_,
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Span :: 3 | 4,
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Pucks :: integer(),
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Serialized :: string().
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%% @doc
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@ -77,9 +74,6 @@ price(puck, {Separator, Myriad}, Pucks) ->
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%% price(gaju, us, 3, 123456789123456789123456789) ->
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%% "木123,456,789.123...".
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%%
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%% price(gaju, ch, 3, 123456789123456789123456789) ->
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%% "木123.456.789,123...".
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%%
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%% price(gaju, us, 3, 123456789123000000000000000) ->
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%% "木123,456,789.123".
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%%
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@ -89,9 +83,6 @@ price(puck, {Separator, Myriad}, Pucks) ->
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%% price(gaju, {$,, 3}, 6, 123456789123000000000000000) ->
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%% "木123,456,789.123"
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%%
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%% price(gaju, {$., 3}, all, 123456789123456789123456789) ->
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%% "木123.456.789,123.456.789.123.456.789"
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%%
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%% price(gaju, {$_, 4}, 10, 123456789123456789123456789) ->
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%% "木1_2345_6789.1234_5678_91..."
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%%
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@ -110,46 +101,46 @@ price(puck, {Separator, Myriad}, Pucks) ->
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price(gaju, us, Precision, Pucks) ->
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western($,, $., 3, Precision, Pucks);
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price(gaju, ch, Precision, Pucks) ->
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western($., $,, 3, Precision, Pucks);
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price(gaju, jp, Precision, Pucks) ->
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jp(gaju, Precision, Pucks);
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price(gaju, {$., Myriad}, Precision, Pucks) ->
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western($., $,, Myriad, Precision, Pucks);
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price(gaju, {Separator, Myriad}, Precision, Pucks) ->
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western(Separator, $., Myriad, Precision, Pucks);
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price(gaju, metric, Precision, Pucks) ->
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bestern(gaju, ranks(metric), Precision, Pucks);
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price(gaju, legacy, Precision, Pucks) ->
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bestern(gaju, ranks(heresy), Precision, Pucks);
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price(gaju, {Separator, Span}, Precision, Pucks) ->
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western(Separator, $., Span, Precision, Pucks);
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price(puck, us, _, Pucks) ->
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western($,, 3, Pucks);
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price(puck, ch, _, Pucks) ->
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western($., 3, Pucks);
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price(puck, jp, _, Pucks) ->
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jp(puck, all, Pucks);
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price(puck, {Separator, Myriad}, _, Pucks) ->
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western(Separator, Myriad, Pucks).
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price(puck, metric, _, Pucks) ->
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bestern(puck, ranks(metric), all, Pucks);
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price(puck, legacy, _, Pucks) ->
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bestern(puck, ranks(heresy), all, Pucks);
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price(puck, {Separator, Span}, _, Pucks) ->
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western(Separator, Span, Pucks).
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western(Separator, Span, Pucks) when Pucks >= 0 ->
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western2(Separator, Span, Pucks);
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western(Separator, Span, Pucks) when Pucks < 0 ->
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[$- | western2(Separator, Span, Pucks * -1)].
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western(Separator, Myriad, Pucks) when Pucks >= 0 ->
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western2(Separator, Myriad, Pucks);
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western(Separator, Myriad, Pucks) when Pucks < 0 ->
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[$- | western2(Separator, Myriad, Pucks * -1)].
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western2(Separator, Myriad, Pucks) ->
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western2(Separator, Span, Pucks) ->
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P = lists:reverse(integer_to_list(Pucks)),
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[puck_mark() | separate(Separator, Myriad, P)].
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[puck_mark() | separate(Separator, Span, P)].
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western(Separator, Break, Myriad, Precision, Pucks) when Pucks >= 0 ->
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western2(Separator, Break, Myriad, Precision, Pucks);
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western(Separator, Break, Myriad, Precision, Pucks) when Pucks < 0 ->
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[$- | western2(Separator, Break, Myriad, Precision, Pucks)].
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western(Separator, Break, Span, Precision, Pucks) when Pucks >= 0 ->
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western2(Separator, Break, Span, Precision, Pucks);
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western(Separator, Break, Span, Precision, Pucks) when Pucks < 0 ->
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[$- | western2(Separator, Break, Span, Precision, Pucks)].
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western2(Separator, _, Myriad, 0, Pucks) ->
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western2(Separator, _, Span, 0, Pucks) ->
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G = lists:reverse(integer_to_list(Pucks div one_gaju())),
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[gaju_mark() | separate(Separator, Myriad, G)];
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western2(Separator, Break, Myriad, Precision, Pucks) ->
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[gaju_mark() | separate(Separator, Span, G)];
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western2(Separator, Break, Span, Precision, Pucks) ->
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SP = integer_to_list(Pucks),
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Length = length(SP),
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Over18 = Length > 18,
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@ -157,19 +148,19 @@ western2(Separator, Break, Myriad, Precision, Pucks) ->
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case {Over18, NoPucks} of
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{true, true} ->
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Gs = lists:reverse(lists:sublist(SP, Length - 18)),
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[gaju_mark() | separate(Separator, Myriad, Gs)];
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[gaju_mark() | separate(Separator, Span, Gs)];
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{true, false} ->
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{PChars, GChars} = lists:split(18, lists:reverse(SP)),
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H = [gaju_mark() | separate(Separator, Myriad, GChars)],
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H = [gaju_mark() | separate(Separator, Span, GChars)],
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{P, E} = decimal_pucks(Precision, lists:reverse(PChars)),
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T = lists:reverse(separate(Separator, Myriad, P)),
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T = lists:reverse(separate(Separator, Span, P)),
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lists:flatten([H, Break, T, E]);
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{false, true} ->
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[gaju_mark(), $0];
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{false, false} ->
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PChars = lists:flatten(string:pad(SP, 18, leading, $0)),
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{P, E} = decimal_pucks(Precision, PChars),
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T = lists:reverse(separate(Separator, Myriad, P)),
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T = lists:reverse(separate(Separator, Span, P)),
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lists:flatten([gaju_mark(), $0, Break, T, E])
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end.
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@ -199,74 +190,159 @@ separate(S, P, N, [H | T], A) ->
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separate(S, P, N + 1, T, [H | A]).
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jp(Unit, Precision, Pucks) when Pucks >= 0 ->
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jp2(Unit, Precision, Pucks);
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jp(Unit, Precision, Pucks) when Pucks < 0 ->
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[$－, Formatted = jp2(Unit, Precision, Pucks * -1)].
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bestern(gaju, Ranks, Precision, Pucks) when Pucks >= 0 ->
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[gaju_mark(), bestern2(gaju, Ranks, 3, Precision, Pucks)];
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bestern(gaju, Ranks, Precision, Pucks) when Pucks < 0 ->
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[$-, gaju_mark(), bestern2(gaju, Ranks, 3, Precision, Pucks * -1)];
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bestern(puck, Ranks, Precision, Pucks) when Pucks >= 0 ->
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[puck_mark(), bestern2(puck, Ranks, 3, Precision, Pucks)];
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bestern(puck, Ranks, Precision, Pucks) when Pucks < 0 ->
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[$-, puck_mark(), bestern2(puck, Ranks, 3, Precision, Pucks * -1)].
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jp2(gaju, 0, Pucks) ->
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jp(Unit, Precision, Pucks) when Pucks >= 0 ->
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bestern2(Unit, ranks(jp), 4, Precision, Pucks);
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jp(Unit, Precision, Pucks) when Pucks < 0 ->
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[$－, bestern2(Unit, ranks(jp), 4, Precision, Pucks * -1)].
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bestern2(gaju, Ranks, Span, 0, Pucks) ->
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G = lists:reverse(integer_to_list(Pucks div one_gaju())),
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myriad4(gaju_mark(), h, G);
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jp2(gaju, all, Pucks) ->
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H = jp(gaju, 0, Pucks),
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case Span of
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3 -> period(" G", Ranks, G);
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4 -> myriad(gaju_mark(), Ranks, G)
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end;
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bestern2(gaju, Ranks, Span, all, Pucks) ->
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P = lists:flatten(string:pad(integer_to_list(Pucks rem one_gaju()), 18, leading, $0)),
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T = myriad4("", l, lists:reverse(P)),
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{H, T} =
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case Span of
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3 -> {bestern2(gaju, Ranks, 3, 0, Pucks), period(" P", Ranks, lists:reverse(P))};
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4 -> {jp(gaju, 0, Pucks), myriad(puck_mark(), Ranks, lists:reverse(P))}
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end,
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lists:flatten([H, " ", T]);
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jp2(gaju, Precision, Pucks) ->
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H = jp(gaju, 0, Pucks),
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bestern2(gaju, Ranks, Span, Precision, Pucks) ->
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P = lists:flatten(string:pad(integer_to_list(Pucks rem one_gaju()), 18, leading, $0)),
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H =
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case Span of
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3 -> bestern2(gaju, Ranks, 3, 0, Pucks);
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4 -> jp(gaju, 0, Pucks)
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end,
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Digits = min(Precision, 18),
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T =
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case length(P) > Digits of
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true ->
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[];
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case length(P) < Digits of
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false ->
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ReverseP = lists:reverse(lists:sublist(P, Digits)),
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PuckingString = lists:flatten(string:pad(ReverseP, 18, leading, $0)),
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case lists:all(fun(C) -> C =:= $0 end, PuckingString) of
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false -> myriad4(puck_mark(), l, PuckingString);
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true -> ""
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end
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false ->
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case Span of
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3 -> period(" P", Ranks, PuckingString);
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4 -> myriad(puck_mark(), Ranks, PuckingString)
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end;
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true ->
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""
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end;
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true ->
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[]
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end,
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T = myriad4("", l, lists:reverse(P)),
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lists:flatten([H, " ", T]);
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jp2(puck, all, Pucks) ->
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bestern2(puck, Ranks, Span, all, Pucks) ->
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P = lists:reverse(integer_to_list(Pucks)),
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case lists:all(fun(C) -> C =:= $0 end, P) of
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false -> myriad4(puck_mark(), h, P);
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true -> [$0, puck_mark()]
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false ->
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case Span of
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3 -> period(" P", Ranks, P);
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4 -> myriad(puck_mark(), Ranks, P)
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end;
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jp2(puck, Precision, Pucks) ->
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true ->
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case Span of
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3 -> [$0, " P"];
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4 -> [$0, puck_mark()]
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end
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end;
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bestern2(puck, Ranks, Span, Precision, Pucks) ->
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Digits = min(Precision, 18),
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P = lists:flatten(string:pad(integer_to_list(Pucks), 18, leading, $0)),
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case length(P) < Digits of
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true ->
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[$0, puck_mark()];
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case Span of
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3 -> [$0, " P"];
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4 -> [$0, puck_mark()]
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end;
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false ->
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PucksToGive = lists:sublist(P, Digits),
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PuckingString = lists:flatten(string:pad(lists:reverse(PucksToGive), 18, leading, $0)),
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case lists:all(fun(C) -> C =:= $0 end, PuckingString) of
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false -> myriad4(puck_mark(), h, PuckingString);
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true -> [$0, puck_mark()]
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false ->
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case Span of
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3 -> period(" P", Ranks, PuckingString);
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4 -> myriad(puck_mark(), Ranks, PuckingString)
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end;
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true ->
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case Span of
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3 -> [$0, " P"];
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4 -> [$0, puck_mark()]
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end
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end
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end.
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myriad4(Symbol, Segment, [$0, $0, $0, $0 | PT]) ->
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rank4(ranks(Segment), PT, [Symbol]);
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myriad4(Symbol, Segment, [P4, $0, $0, $0 | PT]) ->
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rank4(ranks(Segment), PT, [P4, Symbol]);
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myriad4(Symbol, Segment, [P4, P3, $0, $0 | PT]) ->
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rank4(ranks(Segment), PT, [P3, P4, Symbol]);
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myriad4(Symbol, Segment, [P4, P3, P2, $0 | PT]) ->
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rank4(ranks(Segment), PT, [P2, P3, P4, Symbol]);
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myriad4(Symbol, Segment, [P4, P3, P2, P1 | PT]) ->
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rank4(ranks(Segment), PT, [P1, P2, P3, P4, Symbol]);
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myriad4(Symbol, _, [P4]) ->
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period(Symbol, Ranks, [$0, $0, $0 | PT]) ->
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rank3(Ranks, PT, [Symbol]);
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period(Symbol, Ranks, [P3, $0, $0 | PT]) ->
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rank3(Ranks, PT, [P3, Symbol]);
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period(Symbol, Ranks, [P3, P2, $0 | PT]) ->
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rank3(Ranks, PT, [P2, P3, Symbol]);
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period(Symbol, Ranks, [P3, P2, P1 | PT]) ->
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rank3(Ranks, PT, [P1, P2, P3, Symbol]);
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period(Symbol, _, [P3]) ->
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[P3, Symbol];
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period(Symbol, _, [P3, P2]) ->
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[P2, P3, Symbol].
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rank3([_ | RT], [$0, $0, $0 | PT], A) ->
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rank3(RT, PT, A);
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rank3([RH | RT], [P3, $0, $0 | PT], A) ->
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rank3(RT, PT, [P3, RH | A]);
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rank3([RH | RT], [P3, P2, $0 | PT], A) ->
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rank3(RT, PT, [P2, P3, RH | A]);
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rank3([RH | RT], [P3, P2, P1 | PT], A) ->
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rank3(RT, PT, [P1, P2, P3, RH | A]);
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rank3(_, [$0, $0, $0], A) ->
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A;
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rank3(_, [$0, $0], A) ->
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A;
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rank3(_, [$0], A) ->
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A;
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rank3(_, [], A) ->
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A;
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rank3([RH | _], [P3, $0, $0], A) ->
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[P3, RH | A];
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rank3([RH | _], [P3, $0], A) ->
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[P3, RH | A];
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rank3([RH | _], [P3], A) ->
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[P3, RH | A];
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rank3([RH | _], [P3, P2, $0], A) ->
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[P2, P3, RH | A];
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rank3([RH | _], [P3, P2], A) ->
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[P2, P3, RH | A];
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rank3([RH | _], [P3, P2, P1], A) ->
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[P1, P2, P3, RH | A].
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myriad(Symbol, Ranks, [$0, $0, $0, $0 | PT]) ->
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rank4(Ranks, PT, [Symbol]);
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myriad(Symbol, Ranks, [P4, $0, $0, $0 | PT]) ->
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rank4(Ranks, PT, [P4, Symbol]);
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myriad(Symbol, Ranks, [P4, P3, $0, $0 | PT]) ->
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rank4(Ranks, PT, [P3, P4, Symbol]);
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myriad(Symbol, Ranks, [P4, P3, P2, $0 | PT]) ->
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rank4(Ranks, PT, [P2, P3, P4, Symbol]);
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myriad(Symbol, Ranks, [P4, P3, P2, P1 | PT]) ->
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rank4(Ranks, PT, [P1, P2, P3, P4, Symbol]);
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myriad(Symbol, _, [P4]) ->
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[P4, Symbol];
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myriad4(Symbol, _, [P4, P3]) ->
|
||||
myriad(Symbol, _, [P4, P3]) ->
|
||||
[P3, P4, Symbol];
|
||||
myriad4(Symbol, _, [P4, P3, P2]) ->
|
||||
myriad(Symbol, _, [P4, P3, P2]) ->
|
||||
[P2, P3, P4, Symbol].
|
||||
|
||||
rank4([_ | RT], [$0, $0, $0, $0 | PT], A) ->
|
||||
@ -310,11 +386,12 @@ rank4([RH | _], [P4, P3, P2], A) ->
|
||||
rank4([RH | _], [P4, P3, P2, P1], A) ->
|
||||
[P1, P2, P3, P4, RH | A].
|
||||
|
||||
ranks(h) ->
|
||||
ranks(jp) ->
|
||||
"万億兆京垓秭穣溝澗正載極";
|
||||
ranks(l) ->
|
||||
% "曼戌弒俿咳".
|
||||
"満億照鏡咳".
|
||||
ranks(metric) ->
|
||||
["k ", "m ", "g ", "t ", "p ", "e ", "z ", "y ", "r ", "Q "];
|
||||
ranks(heresy) ->
|
||||
["k ", "m ", "b ", "t ", "q ", "e ", "z ", "y ", "r ", "Q "].
|
||||
|
||||
|
||||
gaju_mark() -> $木.
|
||||
@ -324,190 +401,188 @@ puck_mark() -> $本.
|
||||
one_gaju() -> 1_000_000_000_000_000_000.
|
||||
|
||||
|
||||
-spec read(Format) -> Result
|
||||
when Format :: string(),
|
||||
Result :: {ok, Pucks} | {error, Reason},
|
||||
Pucks :: integer(),
|
||||
Reason :: {badarg, Partial :: string(), Rest :: term()}
|
||||
| {incomplete, Partial :: string(), Rest :: binary()}
|
||||
| format.
|
||||
%% @doc
|
||||
%% Convery any valid string formatted representation and output a value in pucks.
|
||||
%% This routine can fail in the special case of `ch' style formatting with a single
|
||||
%% comma and/or a single period in it, as this can trigger misinterpretation as `us'
|
||||
%% style. When in doubt, always call `read/2' with a style specified.
|
||||
|
||||
read(Format) ->
|
||||
case assess_style(string:trim(Format)) of
|
||||
us -> read(us, Format);
|
||||
ch -> read(ch, Format);
|
||||
jp -> read(jp, Format);
|
||||
Error -> Error
|
||||
end.
|
||||
|
||||
assess_style([H1, H2 | Numbers])
|
||||
when H1 =:= $木 orelse H1 =:= $本 orelse H2 =:= $木 orelse H2 =:= $本 ->
|
||||
case count($., Numbers) > 1 of
|
||||
false -> us;
|
||||
true -> ch
|
||||
end;
|
||||
assess_style(Format) ->
|
||||
case lists:member($木, Format) orelse lists:member($本, Format) of
|
||||
true -> jp;
|
||||
false -> {error, format}
|
||||
end.
|
||||
|
||||
count(Char, String) -> count(Char, String, 0).
|
||||
|
||||
count(C, [C | T], A) -> count(C, T, A + 1);
|
||||
count(C, [_ | T], A) -> count(C, T, A);
|
||||
count(_, [], A) -> A.
|
||||
|
||||
|
||||
-spec read(Style, Format) -> Result
|
||||
when Style :: us | ch | jp | undefined,
|
||||
Format :: string(),
|
||||
Result :: {ok, Pucks} | {error, Reason},
|
||||
Pucks :: integer(),
|
||||
Reason :: {badarg, Partial :: string(), Rest :: term()}
|
||||
| {incomplete, Partial :: string(), Rest :: binary()}
|
||||
| format.
|
||||
%% @doc
|
||||
%% Convert any valid string formatted representation and output a value in pucks.
|
||||
%% Note that this function is deliberately a bit too permissive in the case of
|
||||
%% western formatting, stripping all non-halfwidth digit characters on the high
|
||||
%% and low sides of the format once the break (decimal) character is identified
|
||||
%% and sign is determined. That is to say, there are many ways to feed this wacky
|
||||
%% strings and get a number out of it, so be aware.
|
||||
|
||||
read(Style, Format) ->
|
||||
case unicode:characters_to_list(Format) of
|
||||
String when is_list(String) ->
|
||||
Trimmed = string:trim(String),
|
||||
read2(Style, Trimmed);
|
||||
{error, Partial, Rest} ->
|
||||
{error, {badarg, Partial, Rest}};
|
||||
Incomplete ->
|
||||
{error, Incomplete}
|
||||
end.
|
||||
|
||||
read2(us, Format) ->
|
||||
read_western($., Format);
|
||||
read2(ch, Format) ->
|
||||
read_western($,, Format);
|
||||
read2(jp, Format) ->
|
||||
read_jp(Format);
|
||||
read2(undefined, Format) ->
|
||||
read(Format).
|
||||
|
||||
read_western(Break, [$-, Format]) ->
|
||||
case read_western2(Break, Format) of
|
||||
{ok, Pucks} -> {ok, Pucks * -1};
|
||||
Error -> Error
|
||||
end;
|
||||
read_western(Break, Format) ->
|
||||
read_western2(Break, Format).
|
||||
|
||||
read_western2(Break, Format) ->
|
||||
case string:split(Format, [Break], all) of
|
||||
[[], L] -> read_western3(0, L);
|
||||
[H, []] -> read_western3(H, 0);
|
||||
[H, L] -> read_western3(H, L);
|
||||
[H] -> read_western3(H, 0);
|
||||
_ -> {error, format}
|
||||
end.
|
||||
|
||||
read_western3(0, L) ->
|
||||
read_l(L);
|
||||
read_western3(H, 0) ->
|
||||
case read_h(H) of
|
||||
{ok, Gajus} -> {ok, Gajus * one_gaju()};
|
||||
Error -> Error
|
||||
end;
|
||||
read_western3(H, L) ->
|
||||
Gajus = read_h(H),
|
||||
Pucks = read_l(L),
|
||||
{ok, (Gajus * one_gaju()) + Pucks}.
|
||||
|
||||
read_h(S) ->
|
||||
case lists:filter(fun is_numchar/1, S) of
|
||||
[] -> 0;
|
||||
F -> list_to_integer(Filtered)
|
||||
end.
|
||||
|
||||
read_l(L) ->
|
||||
case lists:filter(fun is_numchar/1, S) of
|
||||
[] -> 0;
|
||||
F -> list_to_integer(lists:flatten(string:pad(F, 18, trailing, $0)))
|
||||
end.
|
||||
|
||||
is_numchar(C) -> $0 =< C andalso C =< $9.
|
||||
|
||||
read_jp([$-, Format]) ->
|
||||
read_jp_neg(Format);
|
||||
read_jp([$－, Format]) ->
|
||||
read_jp_neg(Format);
|
||||
read_jp(Format) ->
|
||||
read_jp2(Format).
|
||||
|
||||
read_jp_neg(Format) ->
|
||||
case read_jp2(Format) of
|
||||
{ok, Pucks} -> {ok, Pucks * -1};
|
||||
Error -> Error
|
||||
end.
|
||||
|
||||
read_jp2(Format) ->
|
||||
case segment_jp(Format) of
|
||||
{ok, Segments} -> assemble_jp(Segments);
|
||||
Error -> Error
|
||||
end.
|
||||
|
||||
segment_jp(Format) ->
|
||||
case string:split(Format, [gaju_mark()], all) of
|
||||
[Gajus, Pucks] ->
|
||||
case read_segment(Gajus) of
|
||||
{ok, GajuSegments} ->
|
||||
case read_segment(Pucks) of
|
||||
{ok, PuckSegments} -> {ok, GajuSegments, PuckSegments};
|
||||
Error -> Error
|
||||
end;
|
||||
Error ->
|
||||
Error
|
||||
end;
|
||||
[Gajus] ->
|
||||
case read_segment(Gajus) of
|
||||
{ok, GajuSegments} -> {ok, GajuSegments, ["0"]};
|
||||
Error -> Error
|
||||
end;
|
||||
[] ->
|
||||
{ok, ["0"], ["0"]};
|
||||
_ ->
|
||||
{error, format}
|
||||
end.
|
||||
|
||||
read_segment([C | T], R, A) when $0 =< C andalso C =< $9 ->
|
||||
N = C - $0,
|
||||
read_segment(T, R, [NA);
|
||||
read_segment([C | T], R, A) when $０ =< C andalso C =< $９ ->
|
||||
|
||||
|
||||
|
||||
assemble_jp({GajuSegments, PuckSegments}) ->
|
||||
GajuString = lists:flatten(lists:map(fun expand_jp_myriad/1, GajuSegments)),
|
||||
PuckString = lists:flatten(lists:map(fun expand_jp_myriad/1, PuckDegments)),
|
||||
{ok, integer_to_list(lists:append(GajuString, PuckString))}.
|
||||
assemble_jp(PuckSegments) ->
|
||||
PuckString = lists:flatten(lists:map(fun expand_jp_myriad/1, PuckDegments)),
|
||||
{ok, integer_to_list(PuckString)}.
|
||||
|
||||
expand_jp_myriad(String) ->
|
||||
string:pad(String, 4, leading, $0).
|
||||
|
||||
|
||||
hw_jp_numchar(C) when $０ =< C andalso C =< $９ ->
|
||||
C - $０;
|
||||
hw_jp_numchar(C) ->
|
||||
C.
|
||||
%-spec read(Format) -> Result
|
||||
% when Format :: string(),
|
||||
% Result :: {ok, Pucks} | {error, Reason},
|
||||
% Pucks :: integer(),
|
||||
% Reason :: {badarg, Partial :: string(), Rest :: term()}
|
||||
% | {incomplete, Partial :: string(), Rest :: binary()}
|
||||
% | format.
|
||||
%%% @doc
|
||||
%%% Convery any valid string formatted representation and output a value in pucks.
|
||||
%%% This routine can fail in the special case of `ch' style formatting with a single
|
||||
%%% comma and/or a single period in it, as this can trigger misinterpretation as `us'
|
||||
%%% style. When in doubt, always call `read/2' with a style specified.
|
||||
%
|
||||
%read(Format) ->
|
||||
% case assess_style(string:trim(Format)) of
|
||||
% us -> read(us, Format);
|
||||
% ch -> read(ch, Format);
|
||||
% jp -> read(jp, Format);
|
||||
% Error -> Error
|
||||
% end.
|
||||
%
|
||||
%assess_style([H1, H2 | Numbers])
|
||||
% when H1 =:= $木 orelse H1 =:= $本 orelse H2 =:= $木 orelse H2 =:= $本 ->
|
||||
% case count($., Numbers) > 1 of
|
||||
% false -> us;
|
||||
% true -> ch
|
||||
% end;
|
||||
%assess_style(Format) ->
|
||||
% case lists:member($木, Format) orelse lists:member($本, Format) of
|
||||
% true -> jp;
|
||||
% false -> {error, format}
|
||||
% end.
|
||||
%
|
||||
%count(Char, String) -> count(Char, String, 0).
|
||||
%
|
||||
%count(C, [C | T], A) -> count(C, T, A + 1);
|
||||
%count(C, [_ | T], A) -> count(C, T, A);
|
||||
%count(_, [], A) -> A.
|
||||
%
|
||||
%
|
||||
%-spec read(Style, Format) -> Result
|
||||
% when Style :: us | jp | metric | legacy | undefined,
|
||||
% Format :: string(),
|
||||
% Result :: {ok, Pucks} | {error, Reason},
|
||||
% Pucks :: integer(),
|
||||
% Reason :: {badarg, Partial :: string(), Rest :: term()}
|
||||
% | {incomplete, Partial :: string(), Rest :: binary()}
|
||||
% | format.
|
||||
%%% @doc
|
||||
%%% Convert any valid string formatted representation and output a value in pucks.
|
||||
%%% Note that this function is deliberately a bit too permissive in the case of
|
||||
%%% western formatting, stripping all non-halfwidth digit characters on the high
|
||||
%%% and low sides of the format once the break (decimal) character is identified
|
||||
%%% and sign is determined. That is to say, there are many ways to feed this wacky
|
||||
%%% strings and get a number out of it, so be aware.
|
||||
%
|
||||
%read(Style, Format) ->
|
||||
% case unicode:characters_to_list(Format) of
|
||||
% String when is_list(String) ->
|
||||
% Trimmed = string:trim(String),
|
||||
% read2(Style, Trimmed);
|
||||
% {error, Partial, Rest} ->
|
||||
% {error, {badarg, Partial, Rest}};
|
||||
% Incomplete ->
|
||||
% {error, Incomplete}
|
||||
% end.
|
||||
%
|
||||
%read2(us, Format) ->
|
||||
% read_western($., Format);
|
||||
%read2(jp, Format) ->
|
||||
% read_jp(Format);
|
||||
%read2(undefined, Format) ->
|
||||
% read(Format).
|
||||
%
|
||||
%read_western(Break, [$-, Format]) ->
|
||||
% case read_western2(Break, Format) of
|
||||
% {ok, Pucks} -> {ok, Pucks * -1};
|
||||
% Error -> Error
|
||||
% end;
|
||||
%read_western(Break, Format) ->
|
||||
% read_western2(Break, Format).
|
||||
%
|
||||
%read_western2(Break, Format) ->
|
||||
% case string:split(Format, [Break], all) of
|
||||
% [[], L] -> read_western3(0, L);
|
||||
% [H, []] -> read_western3(H, 0);
|
||||
% [H, L] -> read_western3(H, L);
|
||||
% [H] -> read_western3(H, 0);
|
||||
% _ -> {error, format}
|
||||
% end.
|
||||
%
|
||||
%read_western3(0, L) ->
|
||||
% read_l(L);
|
||||
%read_western3(H, 0) ->
|
||||
% case read_h(H) of
|
||||
% {ok, Gajus} -> {ok, Gajus * one_gaju()};
|
||||
% Error -> Error
|
||||
% end;
|
||||
%read_western3(H, L) ->
|
||||
% Gajus = read_h(H),
|
||||
% Pucks = read_l(L),
|
||||
% {ok, (Gajus * one_gaju()) + Pucks}.
|
||||
%
|
||||
%read_h(S) ->
|
||||
% case lists:filter(fun is_numchar/1, S) of
|
||||
% [] -> 0;
|
||||
% F -> list_to_integer(Filtered)
|
||||
% end.
|
||||
%
|
||||
%read_l(L) ->
|
||||
% case lists:filter(fun is_numchar/1, S) of
|
||||
% [] -> 0;
|
||||
% F -> list_to_integer(lists:flatten(string:pad(F, 18, trailing, $0)))
|
||||
% end.
|
||||
%
|
||||
%is_numchar(C) -> $0 =< C andalso C =< $9.
|
||||
%
|
||||
%read_jp([$-, Format]) ->
|
||||
% read_jp_neg(Format);
|
||||
%read_jp([$－, Format]) ->
|
||||
% read_jp_neg(Format);
|
||||
%read_jp(Format) ->
|
||||
% read_jp2(Format).
|
||||
%
|
||||
%read_jp_neg(Format) ->
|
||||
% case read_jp2(Format) of
|
||||
% {ok, Pucks} -> {ok, Pucks * -1};
|
||||
% Error -> Error
|
||||
% end.
|
||||
%
|
||||
%read_jp2(Format) ->
|
||||
% case segment_jp(Format) of
|
||||
% {ok, Segments} -> assemble_jp(Segments);
|
||||
% Error -> Error
|
||||
% end.
|
||||
%
|
||||
%segment_jp(Format) ->
|
||||
% case string:split(Format, [gaju_mark()], all) of
|
||||
% [Gajus, Pucks] ->
|
||||
% case read_segment(Gajus) of
|
||||
% {ok, GajuSegments} ->
|
||||
% case read_segment(Pucks) of
|
||||
% {ok, PuckSegments} -> {ok, GajuSegments, PuckSegments};
|
||||
% Error -> Error
|
||||
% end;
|
||||
% Error ->
|
||||
% Error
|
||||
% end;
|
||||
% [Gajus] ->
|
||||
% case read_segment(Gajus) of
|
||||
% {ok, GajuSegments} -> {ok, GajuSegments, ["0"]};
|
||||
% Error -> Error
|
||||
% end;
|
||||
% [] ->
|
||||
% {ok, ["0"], ["0"]};
|
||||
% _ ->
|
||||
% {error, format}
|
||||
% end.
|
||||
%
|
||||
%read_segment([C | T], R, A) when $0 =< C andalso C =< $9 ->
|
||||
% N = C - $0,
|
||||
% read_segment(T, R, [NA);
|
||||
%read_segment([C | T], R, A) when $０ =< C andalso C =< $９ ->
|
||||
%
|
||||
%
|
||||
%
|
||||
%assemble_jp({GajuSegments, PuckSegments}) ->
|
||||
% GajuString = lists:flatten(lists:map(fun expand_jp_myriad/1, GajuSegments)),
|
||||
% PuckString = lists:flatten(lists:map(fun expand_jp_myriad/1, PuckDegments)),
|
||||
% {ok, integer_to_list(lists:append(GajuString, PuckString))}.
|
||||
%assemble_jp(PuckSegments) ->
|
||||
% PuckString = lists:flatten(lists:map(fun expand_jp_myriad/1, PuckDegments)),
|
||||
% {ok, integer_to_list(PuckString)}.
|
||||
%
|
||||
%expand_jp_myriad(String) ->
|
||||
% string:pad(String, 4, leading, $0).
|
||||
%
|
||||
%
|
||||
%hw_jp_numchar(C) when $０ =< C andalso C =< $９ ->
|
||||
% C - $０;
|
||||
%hw_jp_numchar(C) ->
|
||||
% C.
|
||||
|
||||
|
||||
-spec price_to_string(Pucks) -> Gajus
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user