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working date parsing

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byte[] 2019-08-22 00:45:38 -04:00
parent 50740b7b91
commit 7845ab4818
1 changed files with 38 additions and 21 deletions
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59
lib/philomena/search/lexer.ex
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@ -91,37 +91,54 @@ defmodule Philomena.Search.Lexer do
ymd_sep = ignore(string("-"))
hms_sep = ignore(string(":"))
iso8601_sep = ignore(choice([string("T"), string("t"), space]))
iso8601_tzsep = choice([string("+"), string("-")])
iso8601_tzsep =
choice([
string("+") |> replace(1),
string("-") |> replace(-1)
])
zulu = ignore(choice([string("Z"), string("z")]))
"""
absolute_date =
date_part =
year
|> optional(
concat(ymd_sep, month)
ymd_sep
|> concat(month)
|> optional(
concat(ymd_sep, day)
ymd_sep
|> concat(day)
|> optional(
concat(iso8601_sep, hour)
iso8601_sep
|> optional(
concat(hms_sep, minute)
hour
|> optional(
concat(hms_sep, second)
hms_sep
|> concat(minute)
|> optional(
concat(hms_sep, second)
)
)
)
)
)
)
|> optional(
choice([
concat(iso8601_tzsep, tz_hour)
|> optional(
concat(hms_sep, tz_minute)
),
zulu
])
)
"""
|> tag(:date)
timezone_part =
choice([
iso8601_tzsep
|> concat(tz_hour)
|> optional(
hms_sep
|> concat(tz_minute)
)
|> tag(:timezone),
zulu
])
absolute_date =
date_part
|> optional(timezone_part)
|> tag(:absolute_date)
relative_date =
integer(min: 1)
@ -139,10 +156,10 @@ defmodule Philomena.Search.Lexer do
|> tag(:relative_date)
date =
# choice([
# absolute_date,
choice([
absolute_date,
relative_date
# ])
])
boost = ignore(string("^")) |> unwrap_and_tag(number, :boost)
fuzz = ignore(string("~")) |> unwrap_and_tag(number, :fuzz)