X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/5d07b6d76c9488334608d3db57c5bc79bb6d177d..33669daefbf86e224fba02e28a3f3091b0571bbd:/app/controllers/geocoder_controller.rb

diff --git a/app/controllers/geocoder_controller.rb b/app/controllers/geocoder_controller.rb
index 556cfb36a..57f86ec9f 100644
--- a/app/controllers/geocoder_controller.rb
+++ b/app/controllers/geocoder_controller.rb
@@ -1,62 +1,59 @@
+# coding: utf-8
+
 class GeocoderController < ApplicationController
-  require 'uri'
-  require 'net/http'
-  require 'rexml/document'
+  require "cgi"
+  require "uri"
+  require "rexml/document"
 
-  before_filter :authorize_web
-  before_filter :set_locale
+  before_action :authorize_web
+  before_action :set_locale
+  before_action :require_oauth, :only => [:search]
 
   def search
-    @query = params[:query]
-    @sources = Array.new
+    normalize_params
 
-    @query.sub(/^\s+/, "")
-    @query.sub(/\s+$/, "")
+    @sources = []
 
-    if @query.match(/^[+-]?\d+(\.\d*)?\s*[\s,]\s*[+-]?\d+(\.\d*)?$/)
+    if params[:lat] && params[:lon]
       @sources.push "latlon"
-    elsif @query.match(/^\d{5}(-\d{4})?$/)
-      @sources.push "us_postcode"
-    elsif @query.match(/^(GIR 0AA|[A-PR-UWYZ]([0-9]{1,2}|([A-HK-Y][0-9]|[A-HK-Y][0-9]([0-9]|[ABEHMNPRV-Y]))|[0-9][A-HJKS-UW])\s*[0-9][ABD-HJLNP-UW-Z]{2})$/i)
-      @sources.push "uk_postcode"
-      @sources.push "osm_namefinder"
-    elsif @query.match(/^[A-Z]\d[A-Z]\s*\d[A-Z]\d$/i)
-      @sources.push "ca_postcode"
-    else
-      @sources.push "osm_namefinder"
-      @sources.push "geonames"
+      @sources.push "osm_nominatim_reverse"
+      @sources.push "geonames_reverse" if defined?(GEONAMES_USERNAME)
+    elsif params[:query]
+      if params[:query] =~ /^\d{5}(-\d{4})?$/
+        @sources.push "us_postcode"
+        @sources.push "osm_nominatim"
+      elsif params[:query] =~ /^(GIR 0AA|[A-PR-UWYZ]([0-9]{1,2}|([A-HK-Y][0-9]|[A-HK-Y][0-9]([0-9]|[ABEHMNPRV-Y]))|[0-9][A-HJKS-UW])\s*[0-9][ABD-HJLNP-UW-Z]{2})$/i
+        @sources.push "uk_postcode"
+        @sources.push "osm_nominatim"
+      elsif params[:query] =~ /^[A-Z]\d[A-Z]\s*\d[A-Z]\d$/i
+        @sources.push "ca_postcode"
+        @sources.push "osm_nominatim"
+      else
+        @sources.push "osm_nominatim"
+        @sources.push "geonames" if defined?(GEONAMES_USERNAME)
+      end
     end
 
-    render :update do |page|
-      page.replace_html :sidebar_content, :partial => "search"
-      page.call "openSidebar"
+    if @sources.empty?
+      render :text => "", :status => :bad_request
+    else
+      render :layout => map_layout
     end
   end
 
   def search_latlon
-    # get query parameters
-    query = params[:query]
-
-    # create result array
-    @results = Array.new
-
-    # decode the location
-    if m = query.match(/^\s*([+-]?\d+(\.\d*)?)\s*[\s,]\s*([+-]?\d+(\.\d*)?)\s*$/)
-      lat = m[1].to_f
-      lon = m[3].to_f
-    end
-
-    # generate results
-    if lat < -90 or lat > 90
+    lat = params[:lat].to_f
+    lon = params[:lon].to_f
+    if lat < -90 || lat > 90
       @error = "Latitude #{lat} out of range"
       render :action => "error"
-    elsif lon < -180 or lon > 180
+    elsif lon < -180 || lon > 180
       @error = "Longitude #{lon} out of range"
       render :action => "error"
     else
-      @results.push({:lat => lat, :lon => lon,
-                     :zoom => APP_CONFIG['postcode_zoom'],
-                     :name => "#{lat}, #{lon}"})
+      @results = [{ :lat => lat, :lon => lon,
+                    :zoom => params[:zoom],
+                    :name => "#{lat}, #{lon}" }]
 
       render :action => "results"
     end
@@ -67,23 +64,23 @@ class GeocoderController < ApplicationController
     query = params[:query]
 
     # create result array
-    @results = Array.new
+    @results = []
 
     # ask geocoder.us (they have a non-commercial use api)
     response = fetch_text("http://rpc.geocoder.us/service/csv?zip=#{escape_query(query)}")
 
     # parse the response
-    unless response.match(/couldn't find this zip/)
+    unless response =~ /couldn't find this zip/
       data = response.split(/\s*,\s+/) # lat,long,town,state,zip
-      @results.push({:lat => data[0], :lon => data[1],
-                     :zoom => APP_CONFIG['postcode_zoom'],
-                     :prefix => "#{data[2]}, #{data[3]},",
-                     :name => data[4]})
+      @results.push(:lat => data[0], :lon => data[1],
+                    :zoom => POSTCODE_ZOOM,
+                    :prefix => "#{data[2]}, #{data[3]},",
+                    :name => data[4])
     end
 
     render :action => "results"
-  rescue Exception => ex
-    @error = "Error contacting rpc.geocoder.us: #{ex.to_s}"
+  rescue StandardError => ex
+    @error = "Error contacting rpc.geocoder.us: #{ex}"
     render :action => "error"
   end
 
@@ -92,124 +89,116 @@ class GeocoderController < ApplicationController
     query = params[:query]
 
     # create result array
-    @results = Array.new
+    @results = []
 
     # ask npemap.org.uk to do a combined npemap + freethepostcode search
     response = fetch_text("http://www.npemap.org.uk/cgi/geocoder.fcgi?format=text&postcode=#{escape_query(query)}")
 
     # parse the response
-    unless response.match(/Error/)
+    unless response =~ /Error/
       dataline = response.split(/\n/)[1]
       data = dataline.split(/,/) # easting,northing,postcode,lat,long
-      postcode = data[2].gsub(/'/, "")
-      zoom = APP_CONFIG['postcode_zoom'] - postcode.count("#")
-      @results.push({:lat => data[3], :lon => data[4], :zoom => zoom,
-                     :name => postcode})
+      postcode = data[2].delete("'")
+      zoom = POSTCODE_ZOOM - postcode.count("#")
+      @results.push(:lat => data[3], :lon => data[4], :zoom => zoom,
+                    :name => postcode)
     end
 
     render :action => "results"
-  rescue Exception => ex
-    @error = "Error contacting www.npemap.org.uk: #{ex.to_s}"
+  rescue StandardError => ex
+    @error = "Error contacting www.npemap.org.uk: #{ex}"
     render :action => "error"
   end
 
   def search_ca_postcode
     # get query parameters
     query = params[:query]
-    @results = Array.new
+    @results = []
 
     # ask geocoder.ca (note - they have a per-day limit)
     response = fetch_xml("http://geocoder.ca/?geoit=XML&postal=#{escape_query(query)}")
 
     # parse the response
     if response.get_elements("geodata/error").empty?
-      @results.push({:lat => response.get_text("geodata/latt").to_s,
-                     :lon => response.get_text("geodata/longt").to_s,
-                     :zoom => APP_CONFIG['postcode_zoom'],
-                     :name => query.upcase})
+      @results.push(:lat => response.get_text("geodata/latt").to_s,
+                    :lon => response.get_text("geodata/longt").to_s,
+                    :zoom => POSTCODE_ZOOM,
+                    :name => query.upcase)
     end
 
     render :action => "results"
-  rescue Exception => ex
-    @error = "Error contacting geocoder.ca: #{ex.to_s}"
+  rescue StandardError => ex
+    @error = "Error contacting geocoder.ca: #{ex}"
     render :action => "error"
   end
 
-  def search_osm_namefinder
+  def search_osm_nominatim
     # get query parameters
     query = params[:query]
+    minlon = params[:minlon]
+    minlat = params[:minlat]
+    maxlon = params[:maxlon]
+    maxlat = params[:maxlat]
+
+    # get view box
+    if minlon && minlat && maxlon && maxlat
+      viewbox = "&viewbox=#{minlon},#{maxlat},#{maxlon},#{minlat}"
+    end
 
-    # create result array
-    @results = Array.new
+    # get objects to excude
+    exclude = "&exclude_place_ids=#{params[:exclude]}" if params[:exclude]
 
-    # ask OSM namefinder
-    response = fetch_xml("http://gazetteer.openstreetmap.org/namefinder/search.xml?find=#{escape_query(query)}")
+    # ask nominatim
+    response = fetch_xml("http:#{NOMINATIM_URL}search?format=xml&extratags=1&q=#{escape_query(query)}#{viewbox}#{exclude}&accept-language=#{http_accept_language.user_preferred_languages.join(',')}")
 
-    # parse the response
-    response.elements.each("searchresults/named") do |named|
-      lat = named.attributes["lat"].to_s
-      lon = named.attributes["lon"].to_s
-      zoom = named.attributes["zoom"].to_s
-      place = named.elements["place/named"] || named.elements["nearestplaces/named"]
-      type = named.attributes["info"].to_s.capitalize
-      name = named.attributes["name"].to_s
-      description = named.elements["description"].to_s
-
-      if name.empty?
-        prefix = ""
-        name = type
-      else
-        prefix =  t "geocoder.search_osm_namefinder.prefix", :type => type
-      end
+    # extract the results from the response
+    results =  response.elements["searchresults"]
 
-      if place
-        distance = format_distance(place.attributes["approxdistance"].to_i)
-        direction = format_direction(place.attributes["direction"].to_i)
-        placename = format_name(place.attributes["name"].to_s)
-        suffix = t "geocoder.search_osm_namefinder.suffix_place", :distance => distance, :direction => direction, :placename => placename
-
-        if place.attributes["rank"].to_i <= 30
-          parent = nil
-          parentrank = 0
-          parentscore = 0
-
-          place.elements.each("nearestplaces/named") do |nearest|
-            nearestrank = nearest.attributes["rank"].to_i
-            nearestscore = nearestrank / nearest.attributes["distance"].to_f
-
-            if nearestrank > 30 and
-               ( nearestscore > parentscore or
-                 ( nearestscore == parentscore and nearestrank > parentrank ) )
-              parent = nearest
-              parentrank = nearestrank
-              parentscore = nearestscore
-            end
-          end
+    # extract parameters from more_url
+    more_url_params = CGI.parse(URI.parse(results.attributes["more_url"]).query)
+
+    # create result array
+    @results = []
 
-          if parent
-            parentname = format_name(parent.attributes["name"].to_s)
+    # create parameter hash for "more results" link
+    @more_params = params.merge(:exclude => more_url_params["exclude_place_ids"].first)
 
-            if  place.attributes["info"].to_s == "suburb"
-              suffix = t "geocoder.search_osm_namefinder.suffix_suburb", :suffix => suffix, :parentname => parentname
-            else
-              parentdistance = format_distance(parent.attributes["approxdistance"].to_i)
-              parentdirection = format_direction(parent.attributes["direction"].to_i)
-              suffix = t "geocoder.search_osm_namefinder.suffix_parent", :suffix => suffix, :parentdistance => parentdistance, :parentdirection => parentdirection, :parentname => parentname
-            end
+    # parse the response
+    results.elements.each("place") do |place|
+      lat = place.attributes["lat"].to_s
+      lon = place.attributes["lon"].to_s
+      klass = place.attributes["class"].to_s
+      type = place.attributes["type"].to_s
+      name = place.attributes["display_name"].to_s
+      min_lat, max_lat, min_lon, max_lon = place.attributes["boundingbox"].to_s.split(",")
+      prefix_name = if type.empty?
+                      ""
+                    else
+                      t "geocoder.search_osm_nominatim.prefix.#{klass}.#{type}", :default => type.tr("_", " ").capitalize
+                    end
+      if klass == "boundary" && type == "administrative"
+        rank = (place.attributes["place_rank"].to_i + 1) / 2
+        prefix_name = t "geocoder.search_osm_nominatim.admin_levels.level#{rank}", :default => prefix_name
+        place.elements["extratags"].elements.each("tag") do |extratag|
+          if extratag.attributes["key"] == "place"
+            prefix_name = t "geocoder.search_osm_nominatim.prefix.place.#{extratag.attributes['value']}", :default => prefix_name
           end
         end
-      else
-        suffix = ""
       end
-
-      @results.push({:lat => lat, :lon => lon, :zoom => zoom,
-                     :prefix => prefix, :name => name, :suffix => suffix,
-                     :description => description})
+      prefix = t "geocoder.search_osm_nominatim.prefix_format", :name => prefix_name
+      object_type = place.attributes["osm_type"]
+      object_id = place.attributes["osm_id"]
+
+      @results.push(:lat => lat, :lon => lon,
+                    :min_lat => min_lat, :max_lat => max_lat,
+                    :min_lon => min_lon, :max_lon => max_lon,
+                    :prefix => prefix, :name => name,
+                    :type => object_type, :id => object_id)
     end
 
     render :action => "results"
-  rescue Exception => ex
-    @error = "Error contacting gazetteer.openstreetmap.org: #{ex.to_s}"
+  rescue StandardError => ex
+    @error = "Error contacting nominatim.openstreetmap.org: #{ex}"
     render :action => "error"
   end
 
@@ -217,11 +206,14 @@ class GeocoderController < ApplicationController
     # get query parameters
     query = params[:query]
 
+    # get preferred language
+    lang = I18n.locale.to_s.split("-").first
+
     # create result array
-    @results = Array.new
+    @results = []
 
     # ask geonames.org
-    response = fetch_xml("http://ws.geonames.org/search?q=#{escape_query(query)}&maxRows=20")
+    response = fetch_xml("http://api.geonames.org/search?q=#{escape_query(query)}&lang=#{lang}&maxRows=20&username=#{GEONAMES_USERNAME}")
 
     # parse the response
     response.elements.each("geonames/geoname") do |geoname|
@@ -229,132 +221,159 @@ class GeocoderController < ApplicationController
       lon = geoname.get_text("lng").to_s
       name = geoname.get_text("name").to_s
       country = geoname.get_text("countryName").to_s
-      @results.push({:lat => lat, :lon => lon,
-                     :zoom => APP_CONFIG['geonames_zoom'],
-                     :name => name,
-                     :suffix => ", #{country}"})
+      @results.push(:lat => lat, :lon => lon,
+                    :zoom => GEONAMES_ZOOM,
+                    :name => name,
+                    :suffix => ", #{country}")
     end
 
     render :action => "results"
-  rescue Exception => ex
-    @error = "Error contacting ws.geonames.org: #{ex.to_s}"
+  rescue StandardError => ex
+    @error = "Error contacting api.geonames.org: #{ex}"
     render :action => "error"
   end
-  
-  def description
-    @sources = Array.new
-
-    @sources.push({ :name => "osm_namefinder", :types => "cities", :max => 2 })
-    @sources.push({ :name => "osm_namefinder", :types => "towns", :max => 4 })
-    @sources.push({ :name => "osm_namefinder", :types => "places", :max => 10 })
-    @sources.push({ :name => "geonames" })
-
-    render :update do |page|
-      page.replace_html :sidebar_content, :partial => "description"
-      page.call "openSidebar"
-    end
-  end
 
-  def description_osm_namefinder
+  def search_osm_nominatim_reverse
     # get query parameters
     lat = params[:lat]
     lon = params[:lon]
-    types = params[:types]
-    max = params[:max]
+    zoom = params[:zoom]
 
     # create result array
-    @results = Array.new
+    @results = []
 
-    # ask OSM namefinder
-    response = fetch_xml("http://gazetteer.openstreetmap.org/namefinder/search.xml?find=#{types}+near+#{lat},#{lon}&max=#{max}")
+    # ask nominatim
+    response = fetch_xml("http:#{NOMINATIM_URL}reverse?lat=#{lat}&lon=#{lon}&zoom=#{zoom}&accept-language=#{http_accept_language.user_preferred_languages.join(',')}")
 
     # parse the response
-    response.elements.each("searchresults/named") do |named|
-      lat = named.attributes["lat"].to_s
-      lon = named.attributes["lon"].to_s
-      zoom = named.attributes["zoom"].to_s
-      place = named.elements["place/named"] || named.elements["nearestplaces/named"]
-      type = named.attributes["info"].to_s
-      name = named.attributes["name"].to_s
-      description = named.elements["description"].to_s
-      distance = format_distance(place.attributes["approxdistance"].to_i)
-      direction = format_direction((place.attributes["direction"].to_i - 180) % 360)
-      prefix = t "geocoder.description_osm_namefinder.prefix", :distance => distance, :direction => direction, :type => type
-      @results.push({:lat => lat, :lon => lon, :zoom => zoom,
-                     :prefix => prefix.capitalize, :name => name,
-                     :description => description})
+    response.elements.each("reversegeocode/result") do |result|
+      lat = result.attributes["lat"].to_s
+      lon = result.attributes["lon"].to_s
+      object_type = result.attributes["osm_type"]
+      object_id = result.attributes["osm_id"]
+      description = result.get_text.to_s
+
+      @results.push(:lat => lat, :lon => lon,
+                    :zoom => zoom,
+                    :name => description,
+                    :type => object_type, :id => object_id)
     end
 
     render :action => "results"
-  rescue Exception => ex
-    @error = "Error contacting gazetteer.openstreetmap.org: #{ex.to_s}"
+  rescue StandardError => ex
+    @error = "Error contacting nominatim.openstreetmap.org: #{ex}"
     render :action => "error"
   end
 
-  def description_geonames
+  def search_geonames_reverse
     # get query parameters
     lat = params[:lat]
     lon = params[:lon]
 
+    # get preferred language
+    lang = I18n.locale.to_s.split("-").first
+
     # create result array
-    @results = Array.new
+    @results = []
 
     # ask geonames.org
-    response = fetch_xml("http://ws.geonames.org/countrySubdivision?lat=#{lat}&lng=#{lon}")
+    response = fetch_xml("http://api.geonames.org/countrySubdivision?lat=#{lat}&lng=#{lon}&lang=#{lang}&username=#{GEONAMES_USERNAME}")
 
     # parse the response
     response.elements.each("geonames/countrySubdivision") do |geoname|
       name = geoname.get_text("adminName1").to_s
       country = geoname.get_text("countryName").to_s
-      @results.push({:prefix => "#{name}, #{country}"})
+      @results.push(:lat => lat, :lon => lon,
+                    :zoom => GEONAMES_ZOOM,
+                    :name => name,
+                    :suffix => ", #{country}")
     end
 
     render :action => "results"
-  rescue Exception => ex
-    @error = "Error contacting ws.geonames.org: #{ex.to_s}"
+  rescue StandardError => ex
+    @error = "Error contacting api.geonames.org: #{ex}"
     render :action => "error"
   end
 
-private
+  private
 
   def fetch_text(url)
-    return Net::HTTP.get(URI.parse(url))
+    response = OSM.http_client.get(URI.parse(url))
+
+    if response.success?
+      response.body
+    else
+      raise response.status.to_s
+    end
   end
 
   def fetch_xml(url)
-    return REXML::Document.new(fetch_text(url))
+    REXML::Document.new(fetch_text(url))
   end
 
-  def format_distance(distance)
-    return t("geocoder.distance", :count => distance)
+  def escape_query(query)
+    URI.escape(query, Regexp.new("[^#{URI::PATTERN::UNRESERVED}]", false, "N"))
   end
 
-  def format_direction(bearing)
-    return t("geocoder.direction.south_west") if bearing >= 22.5 and bearing < 67.5
-    return t("geocoder.direction.south") if bearing >= 67.5 and bearing < 112.5
-    return t("geocoder.direction.south_east") if bearing >= 112.5 and bearing < 157.5
-    return t("geocoder.direction.east") if bearing >= 157.5 and bearing < 202.5
-    return t("geocoder.direction.north_east") if bearing >= 202.5 and bearing < 247.5
-    return t("geocoder.direction.north") if bearing >= 247.5 and bearing < 292.5
-    return t("geocoder.direction.north_west") if bearing >= 292.5 and bearing < 337.5
-    return t("geocoder.direction.west")
-  end
+  def normalize_params
+    query = params[:query]
+    return unless query
 
-  def format_name(name)
-    return name.gsub(/( *\[[^\]]*\])*$/, "")
-  end
+    query.strip!
+
+    if latlon = query.match(/^([NS])\s*(\d{1,3}(\.\d*)?)\W*([EW])\s*(\d{1,3}(\.\d*)?)$/).try(:captures) # [NSEW] decimal degrees
+      params.merge!(nsew_to_decdeg(latlon)).delete(:query)
+    elsif latlon = query.match(/^(\d{1,3}(\.\d*)?)\s*([NS])\W*(\d{1,3}(\.\d*)?)\s*([EW])$/).try(:captures) # decimal degrees [NSEW]
+      params.merge!(nsew_to_decdeg(latlon)).delete(:query)
+
+    elsif latlon = query.match(/^([NS])\s*(\d{1,3})°?\s*(\d{1,3}(\.\d*)?)?['′]?\W*([EW])\s*(\d{1,3})°?\s*(\d{1,3}(\.\d*)?)?['′]?$/).try(:captures) # [NSEW] degrees, decimal minutes
+      params.merge!(ddm_to_decdeg(latlon)).delete(:query)
+    elsif latlon = query.match(/^(\d{1,3})°?\s*(\d{1,3}(\.\d*)?)?['′]?\s*([NS])\W*(\d{1,3})°?\s*(\d{1,3}(\.\d*)?)?['′]?\s*([EW])$/).try(:captures) # degrees, decimal minutes [NSEW]
+      params.merge!(ddm_to_decdeg(latlon)).delete(:query)
 
-  def count_results(results)
-    count = 0
+    elsif latlon = query.match(/^([NS])\s*(\d{1,3})°?\s*(\d{1,2})['′]?\s*(\d{1,3}(\.\d*)?)?["″]?\W*([EW])\s*(\d{1,3})°?\s*(\d{1,2})['′]?\s*(\d{1,3}(\.\d*)?)?["″]?$/).try(:captures) # [NSEW] degrees, minutes, decimal seconds
+      params.merge!(dms_to_decdeg(latlon)).delete(:query)
+    elsif latlon = query.match(/^(\d{1,3})°?\s*(\d{1,2})['′]?\s*(\d{1,3}(\.\d*)?)?["″]\s*([NS])\W*(\d{1,3})°?\s*(\d{1,2})['′]?\s*(\d{1,3}(\.\d*)?)?["″]?\s*([EW])$/).try(:captures) # degrees, minutes, decimal seconds [NSEW]
+      params.merge!(dms_to_decdeg(latlon)).delete(:query)
+
+    elsif latlon = query.match(/^\s*([+-]?\d+(\.\d*)?)\s*[\s,]\s*([+-]?\d+(\.\d*)?)\s*$/)
+      params.merge!(:lat => latlon[1].to_f, :lon => latlon[3].to_f).delete(:query)
+    end
+  end
 
-    results.each do |source|
-      count += source[:results].length if source[:results]
+  def nsew_to_decdeg(captures)
+    begin
+      Float(captures[0])
+      lat = !captures[2].casecmp("s").zero? ? captures[0].to_f : -captures[0].to_f
+      lon = !captures[5].casecmp("w").zero? ? captures[3].to_f : -captures[3].to_f
+    rescue
+      lat = !captures[0].casecmp("s").zero? ? captures[1].to_f : -captures[1].to_f
+      lon = !captures[3].casecmp("w").zero? ? captures[4].to_f : -captures[4].to_f
     end
+    { :lat => lat, :lon => lon }
+  end
 
-    return count
+  def ddm_to_decdeg(captures)
+    begin
+      Float(captures[0])
+      lat = !captures[3].casecmp("s").zero? ? captures[0].to_f + captures[1].to_f / 60 : -(captures[0].to_f + captures[1].to_f / 60)
+      lon = !captures[7].casecmp("w").zero? ? captures[4].to_f + captures[5].to_f / 60 : -(captures[4].to_f + captures[5].to_f / 60)
+    rescue
+      lat = !captures[0].casecmp("s").zero? ? captures[1].to_f + captures[2].to_f / 60 : -(captures[1].to_f + captures[2].to_f / 60)
+      lon = !captures[4].casecmp("w").zero? ? captures[5].to_f + captures[6].to_f / 60 : -(captures[5].to_f + captures[6].to_f / 60)
+    end
+    { :lat => lat, :lon => lon }
   end
 
-  def escape_query(query)
-    return URI.escape(query, Regexp.new("[^#{URI::PATTERN::UNRESERVED}]", false, 'N'))
+  def dms_to_decdeg(captures)
+    begin
+      Float(captures[0])
+      lat = !captures[4].casecmp("s").zero? ? captures[0].to_f + (captures[1].to_f + captures[2].to_f / 60) / 60 : -(captures[0].to_f + (captures[1].to_f + captures[2].to_f / 60) / 60)
+      lon = !captures[9].casecmp("w").zero? ? captures[5].to_f + (captures[6].to_f + captures[7].to_f / 60) / 60 : -(captures[5].to_f + (captures[6].to_f + captures[7].to_f / 60) / 60)
+    rescue
+      lat = !captures[0].casecmp("s").zero? ? captures[1].to_f + (captures[2].to_f + captures[3].to_f / 60) / 60 : -(captures[1].to_f + (captures[2].to_f + captures[3].to_f / 60) / 60)
+      lon = !captures[5].casecmp("w").zero? ? captures[6].to_f + (captures[7].to_f + captures[8].to_f / 60) / 60 : -(captures[6].to_f + (captures[7].to_f + captures[8].to_f / 60) / 60)
+    end
+    { :lat => lat, :lon => lon }
   end
 end