146 lines
5 KiB
TypeScript
146 lines
5 KiB
TypeScript
/**
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* In some cases, a value is represented in a certain unit (such as meters for heigt/distance/..., km/h for speed, ...)
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*
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* Sometimes, multiple denominations are possible (e.g. km/h vs mile/h; megawatt vs kilowatt vs gigawatt for power generators, ...)
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*
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* This brings in some troubles, as there are multiple ways to write it (no denomitation, 'm' vs 'meter' 'metre', ...)
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*
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* Not only do we want to write consistent data to OSM, we also want to present this consistently to the user.
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* This is handled by defining units.
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*
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* # Rendering
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*
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* To render a value with long (human) denomination, use {canonical(key)}
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*
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* # Usage
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*
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* First of all, you define which keys have units applied, for example:
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*
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* ```
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* units: [
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* appliesTo: ["maxspeed", "maxspeed:hgv", "maxspeed:bus"]
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* applicableUnits: [
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* ...
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* ]
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* ]
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* ```
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*
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* ApplicableUnits defines which is the canonical extension, how it is presented to the user, ...:
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*
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* ```
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* applicableUnits: [
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* {
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* canonicalDenomination: "km/h",
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* alternativeDenomination: ["km/u", "kmh", "kph"]
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* default: true,
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* human: {
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* en: "kilometer/hour",
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* nl: "kilometer/uur"
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* },
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* humanShort: {
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* en: "km/h",
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* nl: "km/u"
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* }
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* },
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* {
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* canoncialDenomination: "mph",
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* ... similar for miles an hour ...
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* }
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* ]
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* ```
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*
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*
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* If this is defined, then every key which the denominations apply to (`maxspeed`, `maxspeed:hgv` and `maxspeed:bus`) will be rewritten at the metatagging stage:
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* every value will be parsed and the canonical extension will be added add presented to the other parts of the code.
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*
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* Also, if a freeform text field is used, an extra dropdown with applicable denominations will be given
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*
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*/
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export default interface UnitConfigJson {
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/**
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* Every key from this list will be normalized.
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*
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* To render a united value properly, use
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*/
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appliesToKey: string[]
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/**
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* If set, invalid values will be erased in the MC application (but not in OSM of course!)
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* Be careful with setting this
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*/
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eraseInvalidValues?: boolean
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/**
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* The possible denominations for this unit.
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* For length, denominations could be "meter", "kilometer", "miles", "foot"
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*/
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applicableUnits: DenominationConfigJson[]
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/**
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* In some cases, the default denomination is not the most user friendly to input.
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* E.g., when measuring kerb heights, it is illogical to ask contributors to input an amount in meters.
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*
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* When a default input method should be used, this can be specified by setting the canonical denomination here, e.g.
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* `defaultInput: "cm"`. This must be a denomination which appears in the applicableUnits
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*/
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defaultInput?: string
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}
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export interface DenominationConfigJson {
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/**
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* If this evaluates to true and the value to interpret has _no_ unit given, assumes that this unit is meant.
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* Alternatively, a list of country codes can be given where this acts as the default interpretation
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*
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* E.g., a denomination using "meter" would probably set this flag to "true";
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* a denomination for "mp/h" will use the condition "_country=gb" to indicate that it is the default in the UK.
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*
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* If none of the units indicate that they are the default, the first denomination will be used instead
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*/
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useIfNoUnitGiven?: boolean | string[]
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/**
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* The canonical value for this denomination which will be added to the value in OSM.
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* e.g. "m" for meters
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* If the user inputs '42', the canonical value will be added and it'll become '42m'.
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*
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* Important: often, _no_ canonical values are expected, e.g. in the case of 'maxspeed' where 'km/h' is the default.
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* In this case, an empty string should be used
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*/
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canonicalDenomination: string
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/**
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* The canonical denomination in the case that the unit is precisely '1'.
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* Used for display purposes only.
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*
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* E.g.: for duration of something in minutes: `2 minutes` but `1 minute`; the `minute` goes here
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*/
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canonicalDenominationSingular?: string
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/**
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* A list of alternative values which can occur in the OSM database - used for parsing.
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* E.g.: while 'm' is canonical, `meter`, `mtrs`, ... can occur as well
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*/
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alternativeDenomination?: string[]
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/**
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* The value for humans in the dropdown. This should not use abbreviations and should be translated, e.g.
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* {
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* "en": "meter",
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* "fr": "metre"
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* }
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*/
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human?: string | Record<string, string>
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/**
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* The value for humans in the dropdown. This should not use abbreviations and should be translated, e.g.
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* {
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* "en": "minute",
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* "nl": "minuut"
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* }
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*/
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humanSingular?: string | Record<string, string>
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/**
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* If set, then the canonical value will be prefixed instead, e.g. for '€'
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* Note that if all values use 'prefix', the dropdown might move to before the text field
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*/
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prefix?: boolean
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}
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