overpass-frontend/src/qlFunctions/user.js

A JavaScript (NodeJS/Browser) library to easily access data from OpenStreetMap via Overpass API or from an OSM File. The objects can directly be used with LeafletJS or exported to GeoJSON. Data will be cached in the browser memory.

const OverpassFrontend = require('../defines')
const qlFunction = require('./qlFunction')
const parseString = require('../parseString')

module.exports = class user extends qlFunction {
  constructor (str) {
    super()
    this.fun = 'user'

    this.requestProperties = OverpassFrontend.META
    this.value = []
    let cont = true
    while (cont) {
      cont = false
      const m = str.match(/^(\s*)(([\w\d]+)\s*(,)?|"|')/)

      if (m) {
        if (['"', "'"].includes(m[2])) {
          let p
          str = str.substr(m[1].length)
          ;[p, str] = parseString(str)
          this.value.push(p)
          const m1 = str.match(/^\s*,/)
          if (m1) {
            str = str.substr(m1[0].length)
            cont = true
          }
        } else {
          this.value.push(m[3])
          str = str.substr(m[1].length + m[2].length)
          cont = !!m[4]
        }
      }
    }

    if (!str.match(/^\s*$/)) {
      throw new Error("Can't parse user query: " + str)
    }
  }

  test (ob) {
    if (!ob.meta) {
      return
    }

    return this.value.includes(ob.meta.user)
  }

  toString () {
    return '(user:' + this.value.map(v => '"' + v + '"').join(',') + ')'
  }

  compileLokiJS () {
    if (this.value.length === 1) {
      return { 'osmMeta.user': { $eq: this.value[0] } }
    } else {
      return { 'osmMeta.user': { $in: this.value } }
    }
  }

  isSupersetOf (other) {
    if (other instanceof user) {
      return !other.value.filter(id => !this.value.includes(id)).length
    }
  }
}