51 lines
2.6 KiB
Go
51 lines
2.6 KiB
Go
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package weather
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import "regexp"
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var (
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// Wind patterns: 35012KT, VRB05KT, 27015G25KT, 00000KT
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windPattern = regexp.MustCompile(`^(?P<dir>\d{3}|VRB)(?P<speed>\d{2,3})(G(?P<gust>\d{2,3}))?(?P<unit>KT|MPS)$`)
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// Variable wind: 180V240 (variable from 180 to 240 degrees)
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variableWindPattern = regexp.MustCompile(`^(?P<from>\d{3})V(?P<to>\d{3})$`)
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// Visibility patterns: 9999, 10SM, M1/4SM, 1 1/2SM, 1500
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visibilityPattern = regexp.MustCompile(`^(?P<modifier>[MP\+\-]?)(?P<dist>\d+(?:\s*\d+/\d+)?)(?P<unit>SM|M)?$`)
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// Directional visibility: 2000NE (visibility in a specific direction)
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directionalVisibilityPattern = regexp.MustCompile(`^(?P<dist>\d{4})(?P<dir>[NSEW]{1,2})$`)
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// Cloud patterns: FEW020, SCT030CB, BKN100, OVC200, VV010, SKC, CLR, NSC
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cloudPattern = regexp.MustCompile(`^(?P<type>FEW|SCT|BKN|OVC|VV)(?P<alt>\d{3})(?P<modifier>CB|TCU)?$`)
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// Special cloud codes: SKC (sky clear), CLR (clear), NSC (no significant clouds)
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skyClearPattern = regexp.MustCompile(`^(SKC|CLR|NSC)$`)
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// Temperature/Dewpoint: 25/18, M05/M10, XX/XX
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tempPattern = regexp.MustCompile(`^(?P<temp_mod>M?)(?P<temp>\d{2})/(?P<dew_mod>M?)(?P<dew>\d{2})$`)
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// Altimeter patterns: Q1013 (hPa), A2992 (inHg)
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altimeterPattern = regexp.MustCompile(`^(?P<unit>[QA])(?P<value>\d{4})$`)
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// Weather phenomenon patterns: -RA, +SN, TSRA, FZFG, BR, FG, etc.
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// Intensity: -, +, or empty
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// Descriptors: MI, BC, PR, DR, BL, SH, TS, FZ, DZ, RA, SN, SG, IC, PL, GR, GS, UP, BR, FG, FU, VA, DU, SA, HZ, PY, PO, SQ, FC, SS, DS
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// Weather: DZ, RA, SN, SG, IC, PL, GR, GS, UP, BR, FG, FU, VA, DU, SA, HZ, PY, PO, SQ, FC, SS, DS
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phenomenonPattern = regexp.MustCompile(`^(?P<intensity>[\+\-])?(?P<descriptor>MI|BC|PR|DR|BL|SH|TS|FZ|DZ|RA|SN|SG|IC|PL|GR|GS|UP|BR|FG|FU|VA|DU|SA|HZ|PY|PO|SQ|FC|SS|DS)?(?P<weather>DZ|RA|SN|SG|IC|PL|GR|GS|UP|BR|FG|FU|VA|DU|SA|HZ|PY|PO|SQ|FC|SS|DS)+$`)
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// Time pattern: 251200Z (DDHHmmZ format)
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timePattern = regexp.MustCompile(`^(?P<day>\d{2})(?P<hour>\d{2})(?P<min>\d{2})Z$`)
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// TAF validity period: 2512/2612 (DDHH/DDHH format)
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tafValidityPattern = regexp.MustCompile(`^(?P<from_day>\d{2})(?P<from_hour>\d{2})/(?P<to_day>\d{2})(?P<to_hour>\d{2})$`)
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// TAF period markers: FM251200, TEMPO2512/2515, BECMG2512/2515
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tafFMPattern = regexp.MustCompile(`^FM(?P<day>\d{2})(?P<hour>\d{2})(?P<min>\d{2})$`)
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tafTEMPOPattern = regexp.MustCompile(`^TEMPO(?P<from_day>\d{2})(?P<from_hour>\d{2})/(?P<to_day>\d{2})(?P<to_hour>\d{2})$`)
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tafBECMGPattern = regexp.MustCompile(`^BECMG(?P<from_day>\d{2})(?P<from_hour>\d{2})/(?P<to_day>\d{2})(?P<to_hour>\d{2})$`)
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// Modifiers: AUTO, COR, NIL, etc.
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modifierPattern = regexp.MustCompile(`^(AUTO|COR|NIL)$`)
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)
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