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rename stuff
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byte[]
parent
0188a27893
commit
aef0e7f7d5
3 changed files with 89 additions and 453 deletions
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@ -1,105 +1,5 @@
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defmodule Philomena.Search.Lexer do
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defmodule Philomena.Search.Lexer do
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def lex(input) do
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import NimbleParsec
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{:ok, accept(input |> to_charlist, :outer)}
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rescue
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e in ArgumentError ->
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{:error, e.message}
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_ ->
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{:error, "Parsing error."}
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end
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#
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# Outer state (not inside a term, spaces irrelevant)
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#
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defp accept([], :outer), do: [eof: "$"]
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defp accept('AND' ++ rest, :outer), do: [{:and, "AND"} | accept(rest, :outer)]
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defp accept('NOT' ++ rest, :outer), do: [{:not, "NOT"} | accept(rest, :outer)]
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defp accept('OR' ++ rest, :outer), do: [{:or, "OR"} | accept(rest, :outer)]
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defp accept('||' ++ rest, :outer), do: [{:or, "||"} | accept(rest, :outer)]
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defp accept('&&' ++ rest, :outer), do: [{:and, "&&"} | accept(rest, :outer)]
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defp accept(',' ++ rest, :outer), do: [{:and, ","} | accept(rest, :outer)]
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defp accept('!' ++ rest, :outer), do: [{:not, "!"} | accept(rest, :outer)]
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defp accept('-' ++ rest, :outer), do: [{:not, "-"} | accept(rest, :outer)]
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defp accept('(' ++ rest, :outer), do: [{:lparen, "("} | accept(rest, :outer)]
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defp accept(')' ++ rest, :outer), do: [{:rparen, ")"} | accept(rest, :outer)]
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defp accept('^' ++ rest, :outer), do: [{:boost, "^"} | accept(rest, :float)]
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defp accept('~' ++ rest, :outer), do: [{:fuzz, "~"} | accept(rest, :float)]
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defp accept(' ' ++ rest, :outer), do: accept(rest, :outer)
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defp accept('\t' ++ rest, :outer), do: accept(rest, :outer)
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defp accept('\n' ++ rest, :outer), do: accept(rest, :outer)
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defp accept('\r' ++ rest, :outer), do: accept(rest, :outer)
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defp accept('\v' ++ rest, :outer), do: accept(rest, :outer)
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defp accept('\f' ++ rest, :outer), do: accept(rest, :outer)
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defp accept('"' ++ rest, :outer), do: accept(rest, "", :quoted_term)
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defp accept(input, :outer), do: accept(input, "", 0, :term)
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#
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# Quoted term state
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#
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defp accept('\\"' ++ rest, term, :quoted_term), do: accept(rest, term <> "\"", :quoted_term)
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defp accept('\\', _term, :quoted_term), do: raise ArgumentError, "Unpaired backslash."
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defp accept('"' ++ rest, term, :quoted_term), do: [{:term, term} | accept(rest, :outer)]
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defp accept([c] ++ rest, term, :quoted_term), do: accept(rest, term <> <<c::utf8>>, :quoted_term)
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defp accept([], _term, :quoted_term), do: raise ArgumentError, "Imbalanced quotes."
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#
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# Term state
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#
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defp accept([?\\, c] ++ rest, term, depth, :term) when c in '()\\', do: accept(rest, term <> <<c::utf8>>, depth, :term)
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defp accept('\\', _term, _depth, :term), do: raise ArgumentError, "Unpaired backslash."
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defp accept('(' ++ rest, term, depth, :term), do: accept(rest, term <> "(", depth + 1, :term)
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defp accept(')' ++ rest, term, 0, :term), do: [{:term, String.trim(term)}, {:rparen, ")"} | accept(rest, :outer)]
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defp accept(')' ++ rest, term, depth, :term), do: accept(rest, term <> ")", depth - 1, :term)
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defp accept(' AND' ++ rest, term, 0, :term), do: [{:term, String.trim(term)}, {:and, "AND"} | accept(rest, :outer)]
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defp accept(' OR' ++ rest, term, 0, :term), do: [{:term, String.trim(term)}, {:or, "OR"} | accept(rest, :outer)]
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defp accept(' &&' ++ rest, term, 0, :term), do: [{:term, String.trim(term)}, {:and, "&&"} | accept(rest, :outer)]
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defp accept(' ||' ++ rest, term, 0, :term), do: [{:term, String.trim(term)}, {:or, "||"} | accept(rest, :outer)]
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defp accept(',' ++ rest, term, 0, :term), do: [{:term, String.trim(term)}, {:and, ","} | accept(rest, :outer)]
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defp accept([?^, c] ++ rest, term, 0, :term) when c in '+-0123456789', do: [{:term, term}, {:boost, "^"} | accept([c | rest], :float)]
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defp accept([?~, c] ++ rest, term, 0, :term) when c in '+-0123456789', do: [{:term, term}, {:fuzz, "~"} | accept([c | rest], :float)]
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defp accept('^' ++ rest, term, depth, :term), do: accept(rest, term <> "^", depth, :term)
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defp accept('~' ++ rest, term, depth, :term), do: accept(rest, term <> "~", depth, :term)
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defp accept([c] ++ rest, term, depth, :term), do: accept(rest, term <> <<c::utf8>>, depth, :term)
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defp accept([], term, 0, :term), do: [term: String.trim(term), eof: "$"]
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defp accept([], _term, _depth, :term), do: raise ArgumentError, "Imbalanced parentheses."
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#
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# Number state (for boosting, fuzzing)
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#
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defp accept('+' ++ rest, :float), do: accept(rest, "", :float_w)
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defp accept('-' ++ rest, :float), do: accept(rest, "-", :float_w)
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defp accept(input, :float), do: accept(input, "", :float_w)
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defp accept([c] ++ rest, term, :float_w) when c in ?0..?9, do: accept(rest, term <> <<c::utf8>>, :float_w)
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defp accept('.' ++ rest, term, :float_w), do: accept(rest, term <> ".", :float_f)
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defp accept(')' ++ rest, term, :float_w), do: [{:float, to_number(term)}, {:rparen, ")"} | accept(rest, :outer)]
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defp accept(' AND' ++ rest, term, :float_w), do: [{:float, to_number(term)}, {:rparen, ")"} | accept(rest, :outer)]
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defp accept(' OR' ++ rest, term, :float_w), do: [{:float, to_number(term)}, {:and, "AND"} | accept(rest, :outer)]
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defp accept(' &&' ++ rest, term, :float_w), do: [{:float, to_number(term)}, {:or, "||"} | accept(rest, :outer)]
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defp accept(' ||' ++ rest, term, :float_w), do: [{:float, to_number(term)}, {:and, "&&"} | accept(rest, :outer)]
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defp accept(',' ++ rest, term, :float_w), do: [{:float, to_number(term)}, {:and, ","} | accept(rest, :outer)]
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defp accept('^' ++ rest, term, :float_w), do: [{:float, to_number(term)}, {:boost, "^"} | accept(rest, :float)]
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defp accept('~' ++ rest, term, :float_w), do: [{:float, to_number(term)}, {:fuzz, "~"} | accept(rest, :float)]
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defp accept(' ' ++ rest, term, :float_w), do: [{:float, to_number(term)} | accept(rest, :outer)]
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defp accept([], term, :float_w), do: [float: to_number(term), eof: "$"]
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defp accept(_input, _term, :float_w), do: raise ArgumentError, "Expected a number."
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defp accept([c] ++ rest, term, :float_f) when c in ?0..?9, do: accept(rest, term <> <<c::utf8>>, :float_f)
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defp accept(')' ++ rest, term, :float_f), do: [{:float, to_number(term)}, {:rparen, ")"} | accept(rest, :outer)]
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defp accept(' AND' ++ rest, term, :float_f), do: [{:float, to_number(term)}, {:rparen, ")"} | accept(rest, :outer)]
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defp accept(' OR' ++ rest, term, :float_f), do: [{:float, to_number(term)}, {:and, "AND"} | accept(rest, :outer)]
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defp accept(' &&' ++ rest, term, :float_f), do: [{:float, to_number(term)}, {:or, "||"} | accept(rest, :outer)]
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defp accept(' ||' ++ rest, term, :float_f), do: [{:float, to_number(term)}, {:and, "&&"} | accept(rest, :outer)]
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defp accept(',' ++ rest, term, :float_f), do: [{:float, to_number(term)}, {:and, ","} | accept(rest, :outer)]
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defp accept('^' ++ rest, term, :float_f), do: [{:float, to_number(term)}, {:boost, "^"} | accept(rest, :float)]
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defp accept('~' ++ rest, term, :float_f), do: [{:float, to_number(term)}, {:fuzz, "~"} | accept(rest, :float)]
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defp accept(' ' ++ rest, term, :float_f), do: [{:float, to_number(term)} | accept(rest, :outer)]
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defp accept([], term, :float_f), do: [float: to_number(term), eof: "$"]
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defp accept(_input, _term, :float_f), do: raise ArgumentError, "Expected a number."
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defp to_number(term) do
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defp to_number(term) do
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{float_val, _} = :string.to_float(term)
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{float_val, _} = :string.to_float(term)
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@ -110,8 +10,94 @@ defmodule Philomena.Search.Lexer do
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float_val
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float_val
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is_integer(int_val) ->
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is_integer(int_val) ->
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int_val
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int_val
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true ->
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raise ArgumentError, "Expected a number."
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end
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end
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end
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end
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l_and =
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choice([string("AND"), string("&&"), string(",")])
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|> unwrap_and_tag(:and)
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l_or =
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choice([string("OR"), string("||")])
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|> unwrap_and_tag(:or)
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l_not =
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choice([string("NOT"), string("!"), string("-")])
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|> unwrap_and_tag(:not)
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lparen = string("(") |> unwrap_and_tag(:lparen)
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rparen = string(")") |> unwrap_and_tag(:rparen)
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number =
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optional(ascii_char('-+'))
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|> ascii_char([?0..?9])
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|> times(min: 1)
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|> optional(ascii_char('.') |> ascii_char([?0..?9]) |> times(min: 1))
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|> reduce(:to_number)
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boost = ignore(string("^")) |> unwrap_and_tag(number, :boost)
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fuzz = ignore(string("~")) |> unwrap_and_tag(number, :fuzz)
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space =
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choice([string(" "), string("\t"), string("\n"), string("\r"), string("\v"), string("\f")])
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|> ignore()
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quot = string("\"")
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quoted_term =
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ignore(quot)
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|> choice([
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ignore(string("\\")) |> string("\""),
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ignore(string("\\")) |> string("\\"),
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string("\\") |> utf8_char([]),
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utf8_char(not: ?")
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])
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|> times(min: 1)
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|> ignore(quot)
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|> reduce({List, :to_string, []})
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|> unwrap_and_tag(:term)
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stop_words = choice([
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string("\\") |> eos(),
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string(","),
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concat(space, l_and),
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concat(space, l_or),
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concat(space, l_not),
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rparen,
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fuzz,
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boost
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])
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defcombinatorp :simple_term,
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lookahead_not(stop_words)
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|> choice([
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string("\\") |> utf8_char([]),
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string("(") |> parsec(:simple_term) |> string(")"),
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utf8_char([]),
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])
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|> times(min: 1)
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unquoted_term =
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parsec(:simple_term)
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|> reduce({List, :to_string, []})
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|> unwrap_and_tag(:term)
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outer = choice([
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l_and,
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l_or,
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l_not,
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lparen,
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rparen,
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boost,
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fuzz,
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space,
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quoted_term,
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unquoted_term
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])
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search =
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times(outer, min: 1)
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|> eos()
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defparsec :search, search
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end
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end
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@ -1,103 +0,0 @@
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defmodule Philomena.Search.LexerTwo do
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import NimbleParsec
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defp to_number(term) do
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{float_val, _} = :string.to_float(term)
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{int_val, _} = :string.to_integer(term)
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cond do
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is_float(float_val) ->
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float_val
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is_integer(int_val) ->
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int_val
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end
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end
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l_and =
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choice([string("AND"), string("&&"), string(",")])
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|> unwrap_and_tag(:and)
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l_or =
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choice([string("OR"), string("||")])
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|> unwrap_and_tag(:or)
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l_not =
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choice([string("NOT"), string("!"), string("-")])
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|> unwrap_and_tag(:not)
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lparen = string("(") |> unwrap_and_tag(:lparen)
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rparen = string(")") |> unwrap_and_tag(:rparen)
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number =
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optional(ascii_char('-+'))
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|> ascii_char([?0..?9])
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|> times(min: 1)
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|> optional(ascii_char('.') |> ascii_char([?0..?9]) |> times(min: 1))
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|> reduce(:to_number)
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boost = ignore(string("^")) |> unwrap_and_tag(number, :boost)
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fuzz = ignore(string("~")) |> unwrap_and_tag(number, :fuzz)
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space =
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choice([string(" "), string("\t"), string("\n"), string("\r"), string("\v"), string("\f")])
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|> ignore()
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quot = string("\"")
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quoted_term =
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ignore(quot)
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|> choice([
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ignore(string("\\")) |> string("\""),
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ignore(string("\\")) |> string("\\"),
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string("\\") |> utf8_char([]),
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utf8_char(not: ?")
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])
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|> times(min: 1)
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|> ignore(quot)
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|> reduce({List, :to_string, []})
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|> unwrap_and_tag(:term)
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stop_words = choice([
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string("\\") |> eos(),
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string(","),
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concat(space, l_and),
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concat(space, l_or),
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concat(space, l_not),
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rparen,
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fuzz,
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boost
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])
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defcombinatorp :simple_term,
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lookahead_not(stop_words)
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|> choice([
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string("\\") |> utf8_char([]),
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string("(") |> parsec(:simple_term) |> string(")"),
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utf8_char([]),
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])
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|> times(min: 1)
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unquoted_term =
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parsec(:simple_term)
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|> reduce({List, :to_string, []})
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|> unwrap_and_tag(:term)
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outer = choice([
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l_and,
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l_or,
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l_not,
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lparen,
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rparen,
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boost,
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fuzz,
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space,
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quoted_term,
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unquoted_term
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])
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search =
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times(outer, min: 1)
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|> eos()
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defparsec :search, search
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end
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@ -1,247 +0,0 @@
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"""
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defmodule Philomena.Search.TermLexer do
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def lex(opts, input) do
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{:ok | accept(opts, input, :literal)}
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#rescue
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# e in ArgumentError ->
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# {:error, e.message}
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# _ ->
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# {:error, "Parsing error."}
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end
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#
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# Literal fields
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#
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|
||||||
|
|
||||||
defp accept([field | r_fields], opts, input, :literal_field) do
|
|
||||||
sz = field |> byte_size
|
|
||||||
|
|
||||||
case input do
|
|
||||||
<<^field::binary-size(sz), ":", rest::binary>> ->
|
|
||||||
[{:literal_field, field} | accept(rest, :literal)]
|
|
||||||
<<^field::binary-size(sz), ".eq:", rest::binary>> ->
|
|
||||||
[{:literal_field, field} | accept(rest, :literal)]
|
|
||||||
_ ->
|
|
||||||
accept(r_fields, opts, input, :literal_field)
|
|
||||||
end
|
|
||||||
end
|
|
||||||
defp accept([], %{boolean_fields: fields} = opts, input, :literal_field), do: accept(fields, opts, input, :boolean_field)
|
|
||||||
|
|
||||||
#
|
|
||||||
# Boolean fields
|
|
||||||
#
|
|
||||||
|
|
||||||
defp accept([field | r_fields], opts, input, :boolean_field) do
|
|
||||||
sz = field |> byte_size
|
|
||||||
|
|
||||||
case input do
|
|
||||||
<<^field::binary-size(sz), ":", rest::binary>> ->
|
|
||||||
[{:boolean_field, field} | accept(rest, :boolean)]
|
|
||||||
<<^field::binary-size(sz), ".eq:", rest::binary>> ->
|
|
||||||
[{:boolean_field, field} | accept(rest, :boolean)]
|
|
||||||
_ ->
|
|
||||||
accept(r_fields, opts, input, :boolean_field)
|
|
||||||
end
|
|
||||||
end
|
|
||||||
defp accept([], %{ngram_fields: fields} = opts, input, :boolean_field), do: accept(fields, opts, input, :ngram_field)
|
|
||||||
|
|
||||||
#
|
|
||||||
# NLP-analyzed fields
|
|
||||||
#
|
|
||||||
|
|
||||||
defp accept([field | r_fields], opts, input, :ngram_field) do
|
|
||||||
sz = field |> byte_size
|
|
||||||
|
|
||||||
case input do
|
|
||||||
<<^field::binary-size(sz), ":", rest::binary>> ->
|
|
||||||
[{:ngram_field, field} | accept(rest, :literal)]
|
|
||||||
<<^field::binary-size(sz), ".eq:", rest::binary>> ->
|
|
||||||
[{:ngram_field, field} | accept(rest, :literal)]
|
|
||||||
_ ->
|
|
||||||
accept(r_fields, opts, input, :ngram_field)
|
|
||||||
end
|
|
||||||
end
|
|
||||||
defp accept([], %{ip_fields: fields} = opts, input, :ngram_field), do: accept(fields, opts, input, :ip_fieldngram
|
|
||||||
|
|
||||||
#
|
|
||||||
# IP address and CIDR range fields
|
|
||||||
#
|
|
||||||
|
|
||||||
defp accept([field | r_fields], opts, input, :ip_field) do
|
|
||||||
sz = field |> byte_size
|
|
||||||
|
|
||||||
case input do
|
|
||||||
<<^field::binary-size(sz), ":", rest::binary>> ->
|
|
||||||
[{:ip_field, field} | accept(rest, :ip)]
|
|
||||||
<<^field::binary-size(sz), ".eq:", rest::binary>> ->
|
|
||||||
[{:ip_field, field} | accept(rest, :ip)]
|
|
||||||
_ ->
|
|
||||||
accept(r_fields, opts, input, :ip_field)
|
|
||||||
end
|
|
||||||
end
|
|
||||||
defp accept([], %{int_fields: fields} = opts, input, :ip_field), do: accept(fields, opts, input, :int_field)
|
|
||||||
|
|
||||||
#
|
|
||||||
# Integer fields
|
|
||||||
#
|
|
||||||
|
|
||||||
defp accept([field | r_fields], opts, input, :int_field) do
|
|
||||||
sz = field |> byte_size
|
|
||||||
|
|
||||||
case input do
|
|
||||||
<<^field::binary-size(sz), ":", rest::binary>> ->
|
|
||||||
[{:int_field, field}, {:range, :eq} | accept(rest, :int)]
|
|
||||||
<<^field::binary-size(sz), ".eq:", rest::binary>> ->
|
|
||||||
[{:int_field, field}, {:range, :eq} | accept(rest, :int)]
|
|
||||||
<<^field::binary-size(sz), ".lt:", rest::binary>> ->
|
|
||||||
[{:int_field, field}, {:range, :lt} | accept(rest, :int)]
|
|
||||||
<<^field::binary-size(sz), ".lte:", rest::binary>> ->
|
|
||||||
[{:int_field, field}, {:range, :lte}. accept(rest, :int)]
|
|
||||||
<<^field::binary-size(sz), ".gt:", rest::binary>> ->
|
|
||||||
[{:int_field, field}, {:range, :gt} | accept(rest, :int)]
|
|
||||||
<<^field::binary-size(sz), ".gte:", rest::binary>> ->
|
|
||||||
[{:int_field, field}, {:range, :gte} | accept(rest, :int)]
|
|
||||||
_ ->
|
|
||||||
accept(r_fields, opts, input, :int_field)
|
|
||||||
end
|
|
||||||
end
|
|
||||||
defp accept([], %{float_fields: fields} = opts, input, :int_field), do: accept(fields, opts, input, :float_field)
|
|
||||||
|
|
||||||
#
|
|
||||||
# Float fields
|
|
||||||
#
|
|
||||||
|
|
||||||
defp accept([field | r_fields], opts, input, :float_field) do
|
|
||||||
sz = field |> byte_size
|
|
||||||
|
|
||||||
case input do
|
|
||||||
<<^field::binary-size(sz), ":", rest::binary>> ->
|
|
||||||
[{:float_field, field}, {:range, :eq} | accept(rest, :float)]
|
|
||||||
<<^field::binary-size(sz), ".eq:", rest::binary>> ->
|
|
||||||
[{:float_field, field}, {:range, :eq} | accept(rest, :float)]
|
|
||||||
<<^field::binary-size(sz), ".lt:", rest::binary>> ->
|
|
||||||
[{:float_field, field}, {:range, :lt} | accept(rest, :float)]
|
|
||||||
<<^field::binary-size(sz), ".lte:", rest::binary>> ->
|
|
||||||
[{:float_field, field}, {:range, :lte} | accept(rest, :float)]
|
|
||||||
<<^field::binary-size(sz), ".gt:", rest::binary>> ->
|
|
||||||
[{:float_field, field}, {:range, :gt} | accept(rest, :float)]
|
|
||||||
<<^field::binary-size(sz), ".gte:", rest::binary>> ->
|
|
||||||
[{:float_field, field}, {:range, :gte} | accept(rest, :float)]
|
|
||||||
_ ->
|
|
||||||
accept(r_fields, opts, input, :float_field)
|
|
||||||
end
|
|
||||||
end
|
|
||||||
defp accept([], %{date_fields: fields} = opts, input, :float_field), do: accept(fields, opts, input, :date_field)
|
|
||||||
|
|
||||||
#
|
|
||||||
# Date fields
|
|
||||||
#
|
|
||||||
|
|
||||||
defp accept([field | r_fields], opts, input, :date_field) do
|
|
||||||
sz = field |> byte_size
|
|
||||||
|
|
||||||
case input do
|
|
||||||
<<^field::binary-size(sz), ":", rest::binary>> ->
|
|
||||||
[{:date_field, field}, {:range, :eq} | accept(rest, :date)]
|
|
||||||
<<^field::binary-size(sz), ".eq:", rest::binary>> ->
|
|
||||||
[{:date_field, field}, {:range, :eq} | accept(rest, :date)]
|
|
||||||
<<^field::binary-size(sz), ".lt:", rest::binary>> ->
|
|
||||||
[{:date_field, field}, {:range, :lt} | accept(rest, :date)]
|
|
||||||
<<^field::binary-size(sz), ".lte:", rest::binary>> ->
|
|
||||||
[{:date_field, field}, {:range, :lte} | accept(rest, :date)]
|
|
||||||
<<^field::binary-size(sz), ".gt:", rest::binary>> ->
|
|
||||||
[{:date_field, field}, {:range, :gt} | accept(rest, :date)]
|
|
||||||
<<^field::binary-size(sz), ".gte:", rest::binary>> ->
|
|
||||||
[{:date_field, field}, {:range, :gte} | accept(rest, :date)]
|
|
||||||
_ ->
|
|
||||||
accept(r_fields, opts, input, :date_field)
|
|
||||||
end
|
|
||||||
end
|
|
||||||
|
|
||||||
#
|
|
||||||
# Default field handling
|
|
||||||
#
|
|
||||||
|
|
||||||
defp accept([], %{default_field: field} = opts, input, :date_field) do
|
|
||||||
[{:literal_field, field} | accept(input, :literal)]
|
|
||||||
end
|
|
||||||
|
|
||||||
#
|
|
||||||
# Text and wildcarded text
|
|
||||||
#
|
|
||||||
|
|
||||||
defp accept(input, :literal), do: accept(input, "", :literal)
|
|
||||||
|
|
||||||
defp accept(<<"\\", c::utf8, rest::binary>>, term, :literal), do: accept(rest, term <> <<c::utf8>>, :literal)
|
|
||||||
defp accept(<<c::utf8, rest::binary>>, term, :literal) when c in '*?', do: accept(rest, term <> <<c::utf8>>, :wildcard)
|
|
||||||
defp accept(<<c::utf8, rest::binary>>, term, :literal), do: accept(rest, term <> <<c::utf8>>, :literal)
|
|
||||||
defp accept(<<>>, term, :literal), do: [literal: term]
|
|
||||||
|
|
||||||
defp accept(<<"\\", c::utf8, rest::binary>>, term, :wildcard) when c in '*?', do: accept(rest, term <> <<"\\", c::utf8>>, :wildcard)
|
|
||||||
defp accept(<<"\\", c::utf8, rest::binary>>, term, :wildcard), do: accept(rest, term <> <<c::utf8>>, :wildcard)
|
|
||||||
defp accept(<<c::utf8, rest::binary>>, term, :wildcard), do: accept(rest, term <> <<c::utf8>>, :wildcard)
|
|
||||||
defp accept(<<>>, term, :wildcard), do: [wildcard: term]
|
|
||||||
|
|
||||||
#
|
|
||||||
# Booleans
|
|
||||||
#
|
|
||||||
|
|
||||||
defp accept("true", :boolean), do: [boolean: true]
|
|
||||||
defp accept("false", :boolean), do: [boolean: false]
|
|
||||||
defp accept(input, :boolean), do: raise ArgumentError, "Expected a boolean, got `\#{input}'."
|
|
||||||
|
|
||||||
#
|
|
||||||
# Floats (integers are also considered valid)
|
|
||||||
#
|
|
||||||
|
|
||||||
defp accept(<<"+", rest::binary>>, :float), do: accept(rest, "", :float_w)
|
|
||||||
defp accept(<<"-", rest::binary>>, :float), do: accept(rest, "-", :float_w)
|
|
||||||
defp accept(input, :float), do: accept(input, "", :float_w)
|
|
||||||
|
|
||||||
defp accept(<<c::utf8, rest::binary>>, term, :float_w) when c in ?0..?9, do: accept(rest, term <> <<c::utf8>>, :float_w)
|
|
||||||
defp accept(<<".", rest::binary>>, term, :float_w), do: accept(rest, term <> ".", :float_f)
|
|
||||||
defp accept(<<c::utf8, rest::binary>>, term, :float_w), do: raise ArgumentError, "Expected a float, got `\#{<<term::binary, c::utf8, rest::binary>>}'."
|
|
||||||
defp accept(<<>>, term, :float_w), do: [float: to_number(term)]
|
|
||||||
|
|
||||||
defp accept(<<c::utf8, rest::binary>>, term, :float_f) when c in ?0..?9, do: accept(rest, term <> <<c::utf8>>, :float_f)
|
|
||||||
defp accept(<<c::utf8, rest::binary>>, term, :float_f), do: raise ArgumentError, "Expected a float, got `\#{<<term::binary, c::utf8, rest::binary>>}'."
|
|
||||||
defp accept(<<>>, term, :float_f), do: [float: to_number(term)]
|
|
||||||
|
|
||||||
#
|
|
||||||
# Integers
|
|
||||||
#
|
|
||||||
|
|
||||||
defp accept(<<"+", rest::binary>>, :int), do: accept(rest, "", :int_w)
|
|
||||||
defp accept(<<"-", rest::binary>>, :int), do: accept(rest, "-", :int_w)
|
|
||||||
defp accept(input, :int), do: accept(input, "", :int_w)
|
|
||||||
|
|
||||||
defp accept(<<c::utf8, rest::binary>>, term, :int_w) when c in ?0..?9, do: accept(rest, term <> <<c::utf8>>, :int_w)
|
|
||||||
defp accept(<<c::utf8, rest::binary>>, term, :int_w), do: raise ArgumentError, "Expected an integer, got `\#{<<term::binary, c::utf8, rest::binary>>}'."
|
|
||||||
defp accept(<<>>, term, :int_w), do: [int: to_number(term)]
|
|
||||||
|
|
||||||
#
|
|
||||||
# IP addresses
|
|
||||||
#
|
|
||||||
|
|
||||||
defp accept(<<c1::utf8, c2::utf8, c3::utf8, ".", rest::binary>>, :ip) when c1 in ?0..9 and c2 in ?0..?9 and c3 in ?0..?9, do: accept({})
|
|
||||||
defp accept(<<"::ffff:", c1::utf8, c2::utf8, c3::utf8, ".", rest::binary>>, :ip) when c1 in ?0..9 and c2 in ?0..?9 and c3 in ?0..?9, do: accept({})
|
|
||||||
defp accept(<<c1::utf8, c2::utf8, ".", rest::binary>>, :ip) when c1 in ?0..9 and c2 in ?0..?9, do: accept({})
|
|
||||||
defp accept(<<"::ffff:",c1::utf8, c2::utf8, ".", rest::binary>>, :ip) when c1 in ?0..9 and c2 in ?0..?9, do: accept({})
|
|
||||||
defp accept(<<c1::utf8, ".", rest::binary>>, :ip) when c1 in ?0..9, do: accept({})
|
|
||||||
defp accept(<<"::ffff:", c1::utf8, ".", rest::binary>>, :ip) when c1 in ?0..9, do: accept({})
|
|
||||||
|
|
||||||
defp to_number(term) do
|
|
||||||
{float_val, _} = :string.to_float(term)
|
|
||||||
{int_val, _} = :string.to_integer(term)
|
|
||||||
|
|
||||||
cond do
|
|
||||||
is_float(float_val) ->
|
|
||||||
float_val
|
|
||||||
is_integer(int_val) ->
|
|
||||||
int_val
|
|
||||||
true ->
|
|
||||||
raise ArgumentError, "Expected a number."
|
|
||||||
end
|
|
||||||
end
|
|
||||||
end
|
|
||||||
"""
|
|
||||||
Loading…
Reference in a new issue