X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/2061b5c257f9f22253f55946d43ee97d15c2c67c..53a33110f0bb7440ab7ec5b00b59c9fc768f7de4:/app/controllers/geocoder_controller.rb

diff --git a/app/controllers/geocoder_controller.rb b/app/controllers/geocoder_controller.rb
index 8ec0ab6b7..43f276efa 100644
--- a/app/controllers/geocoder_controller.rb
+++ b/app/controllers/geocoder_controller.rb
@@ -35,15 +35,15 @@ class GeocoderController < ApplicationController
       @results = []
 
       if lat >= -90 && lat <= 90 && lon >= -180 && lon <= 180
-        @results.push(:lat => lat, :lon => lon,
+        @results.push(:lat => params[:lat], :lon => params[:lon],
                       :zoom => params[:zoom],
-                      :name => "#{lat}, #{lon}")
+                      :name => "#{params[:lat]}, #{params[:lon]}")
       end
 
       if lon >= -90 && lon <= 90 && lat >= -180 && lat <= 180
-        @results.push(:lat => lon, :lon => lat,
+        @results.push(:lat => params[:lon], :lon => params[:lat],
                       :zoom => params[:zoom],
-                      :name => "#{lon}, #{lat}")
+                      :name => "#{params[:lon]}, #{params[:lat]}")
       end
 
       if @results.empty?
@@ -61,9 +61,9 @@ class GeocoderController < ApplicationController
         @error = "Longitude #{lon} out of range"
         render :action => "error"
       else
-        @results = [{ :lat => lat, :lon => lon,
+        @results = [{ :lat => params[:lat], :lon => params[:lon],
                       :zoom => params[:zoom],
-                      :name => "#{lat}, #{lon}" }]
+                      :name => "#{params[:lat]}, #{params[:lon]}" }]
 
         render :action => "results"
       end
@@ -206,20 +206,12 @@ class GeocoderController < ApplicationController
     if query = params[:query]
       query.strip!
 
-      if latlon = query.match(/^([NS])\s*(\d{1,3}(\.\d*)?)\W*([EW])\s*(\d{1,3}(\.\d*)?)$/).try(:captures) || # [NSEW] decimal degrees
-                  query.match(/^(\d{1,3}(\.\d*)?)\s*([NS])\W*(\d{1,3}(\.\d*)?)\s*([EW])$/).try(:captures)    # decimal degrees [NSEW]
-        params.merge!(nsew_to_decdeg(latlon)).delete(:query)
+      if latlon = query.match(/^(?<ns>[NS])\s*#{dms_regexp('ns')}\W*(?<ew>[EW])\s*#{dms_regexp('ew')}$/) ||
+                  query.match(/^#{dms_regexp('ns')}\s*(?<ns>[NS])\W*#{dms_regexp('ew')}\s*(?<ew>[EW])$/)
+        params.merge!(to_decdeg(latlon.named_captures.compact)).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*)?)?['′]?)?$/).try(:captures) || # [NSEW] degrees, decimal minutes
-                     query.match(/^(\d{1,3})°?(?:\s*(\d{1,3}(\.\d*)?)?['′]?)?\s*([NS])\W*(\d{1,3})°?(?:\s*(\d{1,3}(\.\d*)?)?['′]?)?\s*([EW])$/).try(:captures)    # degrees, decimal minutes [NSEW]
-        params.merge!(ddm_to_decdeg(latlon)).delete(:query)
-
-      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*)?)?["″]?)?$/).try(:captures) || # [NSEW] degrees, minutes, decimal seconds
-                     query.match(/^(\d{1,3})°?\s*(\d{1,2})['′]?(?:\s*(\d{1,3}(\.\d*)?)?["″]?)?\s*([NS])\W*(\d{1,3})°?\s*(\d{1,2})['′]?(?:\s*(\d{1,3}(\.\d*)?)?["″]?)?\s*([EW])$/).try(:captures)    # degrees, minutes, decimal seconds [NSEW]
-        params.merge!(dms_to_decdeg(latlon)).delete(:query)
-
-      elsif latlon = query.match(%r{^([+-]?\d+(\.\d*)?)(?:\s+|\s*[,/]\s*)([+-]?\d+(\.\d*)?)$})
-        params.merge!(:lat => latlon[1].to_f, :lon => latlon[3].to_f).delete(:query)
+      elsif latlon = query.match(%r{^(?<lat>[+-]?\d+(?:\.\d+)?)(?:\s+|\s*[,/]\s*)(?<lon>[+-]?\d+(?:\.\d+)?)$})
+        params.merge!(:lat => latlon["lat"], :lon => latlon["lon"]).delete(:query)
 
         params[:latlon_digits] = true
       end
@@ -228,39 +220,28 @@ class GeocoderController < ApplicationController
     params.permit(:query, :lat, :lon, :latlon_digits, :zoom, :minlat, :minlon, :maxlat, :maxlon)
   end
 
-  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 StandardError
-      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 }
+  def dms_regexp(name_prefix)
+    /
+      (?: (?<#{name_prefix}d>\d{1,3}(?:\.\d+)?)°? ) |
+      (?: (?<#{name_prefix}d>\d{1,3})°?\s*(?<#{name_prefix}m>\d{1,2}(?:\.\d+)?)['′]? ) |
+      (?: (?<#{name_prefix}d>\d{1,3})°?\s*(?<#{name_prefix}m>\d{1,2})['′]?\s*(?<#{name_prefix}s>\d{1,2}(?:\.\d+)?)["″]? )
+    /x
   end
 
-  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 StandardError
-      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 to_decdeg(captures)
+    ns = captures.fetch("ns").casecmp?("s") ? -1 : 1
+    nsd = BigDecimal(captures.fetch("nsd", "0"))
+    nsm = BigDecimal(captures.fetch("nsm", "0"))
+    nss = BigDecimal(captures.fetch("nss", "0"))
 
-  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 StandardError
-      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 }
+    ew = captures.fetch("ew").casecmp?("w") ? -1 : 1
+    ewd = BigDecimal(captures.fetch("ewd", "0"))
+    ewm = BigDecimal(captures.fetch("ewm", "0"))
+    ews = BigDecimal(captures.fetch("ews", "0"))
+
+    lat = ns * (nsd + (nsm / 60) + (nss / 3600))
+    lon = ew * (ewd + (ewm / 60) + (ews / 3600))
+
+    { :lat => lat.round(6).to_s("F"), :lon => lon.round(6).to_s("F") }
   end
 end