local module = {}
-local PRE_DELETE = nil
-local PRE_EXTRAS = nil
local POST_DELETE = nil
-local MAIN_KEYS = nil
+local MAIN_KEYS = {admin_level = {'delete'}}
+local PRE_FILTER = {prefix = {}, suffix = {}}
local NAMES = nil
local ADDRESS_TAGS = nil
local SAVE_EXTRA_MAINS = false
waterway = module.relation_as_multiline
}
+--------- Built-in place transformation functions --------------------------
+
+local PlaceTransform = {}
+
+-- Special transform meanings which are interpreted elsewhere
+PlaceTransform.fallback = 'fallback'
+PlaceTransform.delete = 'delete'
+PlaceTransform.extra = 'extra'
+
+-- always: unconditionally use that place
+function PlaceTransform.always(place)
+ return place
+end
+
+-- never: unconditionally drop the place
+function PlaceTransform.never()
+ return nil
+end
+
+-- named: use the place if it has a fully-qualified name
+function PlaceTransform.named(place)
+ if place.has_name then
+ return place
+ end
+end
+
+-- named_with_key: use place if there is a name with the main key prefix
+function PlaceTransform.named_with_key(place, k)
+ local names = {}
+ local prefix = k .. ':name'
+ for namek, namev in pairs(place.intags) do
+ if namek:sub(1, #prefix) == prefix
+ and (#namek == #prefix
+ or namek:sub(#prefix + 1, #prefix + 1) == ':') then
+ names[namek:sub(#k + 2)] = namev
+ end
+ end
+
+ if next(names) ~= nil then
+ return place:clone{names=names}
+ end
+end
+
+----------------- other helper functions -----------------------------
+
+local function lookup_prefilter_classification(k, v)
+ -- full matches
+ local desc = MAIN_KEYS[k]
+ local fullmatch = desc and (desc[v] or desc[1])
+ if fullmatch ~= nil then
+ return fullmatch
+ end
+ -- suffixes
+ for slen, slist in pairs(PRE_FILTER.suffix) do
+ if #k >= slen then
+ local group = slist[k:sub(-slen)]
+ if group ~= nil then
+ return group
+ end
+ end
+ end
+ -- prefixes
+ for slen, slist in pairs(PRE_FILTER.prefix) do
+ if #k >= slen then
+ local group = slist[k:sub(1, slen)]
+ if group ~= nil then
+ return group
+ end
+ end
+ end
+end
+
+
+local function merge_filters_into_main(group, keys, tags)
+ if keys ~= nil then
+ for _, key in pairs(keys) do
+ -- ignore suffix and prefix matches
+ if key:sub(1, 1) ~= '*' and key:sub(#key, #key) ~= '*' then
+ if MAIN_KEYS[key] == nil then
+ MAIN_KEYS[key] = {}
+ end
+ MAIN_KEYS[key][1] = group
+ end
+ end
+ end
+
+ if tags ~= nil then
+ for key, values in pairs(tags) do
+ if MAIN_KEYS[key] == nil then
+ MAIN_KEYS[key] = {}
+ end
+ for _, v in pairs(values) do
+ MAIN_KEYS[key][v] = group
+ end
+ end
+ end
+end
+
+
+local function remove_group_from_main(group)
+ for key, values in pairs(MAIN_KEYS) do
+ for _, ttype in pairs(values) do
+ if ttype == group then
+ values[ttype] = nil
+ end
+ end
+ if next(values) == nil then
+ MAIN_KEYS[key] = nil
+ end
+ end
+end
+
+
+local function add_pre_filter(data)
+ for group, keys in pairs(data) do
+ for _, key in pairs(keys) do
+ local klen = #key - 1
+ if key:sub(1, 1) == '*' then
+ if klen > 0 then
+ if PRE_FILTER.suffix[klen] == nil then
+ PRE_FILTER.suffix[klen] = {}
+ end
+ PRE_FILTER.suffix[klen][key:sub(2)] = group
+ end
+ elseif key:sub(#key, #key) == '*' then
+ if PRE_FILTER.prefix[klen] == nil then
+ PRE_FILTER.prefix[klen] = {}
+ end
+ PRE_FILTER.prefix[klen][key:sub(1, klen)] = group
+ end
+ end
+ end
+end
+
------------- Place class ------------------------------------------
local Place = {}
self.extratags = {}
self.intags = {}
+
+ local has_main_tags = false
for k, v in pairs(self.object.tags) do
- if PRE_DELETE ~= nil and PRE_DELETE(k, v) then
- -- ignore
- elseif PRE_EXTRAS ~= nil and PRE_EXTRAS(k, v) then
+ local group = lookup_prefilter_classification(k, v)
+ if group == 'extra' then
self.extratags[k] = v
- elseif k ~= 'admin_level' then
+ elseif group ~= 'delete' then
self.intags[k] = v
+ if group ~= nil then
+ has_main_tags = true
+ end
end
end
+ if not has_main_tags then
+ -- no interesting tags, don't bother processing
+ self.intags = {}
+ end
+
return self
end
self.has_name = true
elseif atype == 'house' then
self.has_name = true
- fallback = {'place', 'house', 'always'}
+ fallback = {'place', 'house', PlaceTransform.always}
end
end
end
end
-function Place:write_place(k, v, mtype, save_extra_mains)
- if mtype == nil then
- return 0
- end
-
+function Place:write_place(k, v, mfunc, save_extra_mains)
v = v or self.intags[k]
if v == nil then
return 0
end
- if type(mtype) == 'table' then
- mtype = mtype[v] or mtype[1]
- end
-
- if mtype == 'always' or (self.has_name and mtype == 'named') then
- return self:write_row(k, v, save_extra_mains)
- end
-
- if mtype == 'named_with_key' then
- local names = {}
- local prefix = k .. ':name'
- for namek, namev in pairs(self.intags) do
- if namek:sub(1, #prefix) == prefix
- and (#namek == #prefix
- or namek:sub(#prefix + 1, #prefix + 1) == ':') then
- names[namek:sub(#k + 2)] = namev
- end
- end
-
- if next(names) ~= nil then
- local saved_names = self.names
- self.names = names
-
- local results = self:write_row(k, v, save_extra_mains)
-
- self.names = saved_names
-
- return results
- end
+ local place = mfunc(self, k, v)
+ if place then
+ local res = place:write_row(k, v, save_extra_mains)
+ self.num_entries = self.num_entries + res
+ return res
end
return 0
end
end
- self.num_entries = self.num_entries + 1
-
return 1
end
+function Place:clone(data)
+ local cp = setmetatable({}, Place)
+ cp.object = self.object
+ cp.geometry = data.geometry or self.geometry
+ cp.geom_func = self.geom_func
+ cp.intags = data.intags or self.intags
+ cp.admin_level = data.admin_level or self.admin_level
+ cp.names = data.names or self.names
+ cp.address = data.address or self.address
+ cp.extratags = data.extratags or self.extratags
+
+ return cp
+end
+
+
function module.tag_match(data)
if data == nil or next(data) == nil then
return nil
end
function module.process_tags(o)
+ if next(o.intags) == nil then
+ return -- shortcut when pre-filtering has removed all tags
+ end
+
-- Exception for boundary/place double tagging
if o.intags.boundary == 'administrative' then
o:grab_extratags{match = function (k, v)
-- address keys
if o:grab_address_parts{groups=ADDRESS_TAGS} > 0 and fallback == nil then
- fallback = {'place', 'house', 'always'}
+ fallback = {'place', 'house', PlaceTransform.always}
end
if o.address.country ~= nil and #o.address.country ~= 2 then
o.address['country'] = nil
end
if POSTCODE_FALLBACK and fallback == nil and o.address.postcode ~= nil then
- fallback = {'place', 'postcode', 'always'}
+ fallback = {'place', 'postcode', PlaceTransform.always}
end
if o.address.interpolation ~= nil then
- o:write_place('place', 'houses', 'always', SAVE_EXTRA_MAINS)
+ o:write_place('place', 'houses', PlaceTransform.always, SAVE_EXTRA_MAINS)
return
end
-- collect main keys
for k, v in pairs(o.intags) do
- local ktype = MAIN_KEYS[k]
- if ktype == 'fallback' then
- if o.has_name then
- fallback = {k, v, 'named'}
+ local ktable = MAIN_KEYS[k]
+ if ktable then
+ local ktype = ktable[v] or ktable[1]
+ if type(ktype) == 'function' then
+ o:write_place(k, v, ktype, SAVE_EXTRA_MAINS)
+ elseif ktype == 'fallback' and o.has_name then
+ fallback = {k, v, PlaceTransform.named}
end
- elseif ktype ~= nil then
- o:write_place(k, v, MAIN_KEYS[k], SAVE_EXTRA_MAINS)
end
end
--------- Convenience functions for simple style configuration -----------------
-
function module.set_prefilters(data)
- PRE_DELETE = module.tag_match{keys = data.delete_keys, tags = data.delete_tags}
- PRE_EXTRAS = module.tag_match{keys = data.extra_keys,
- tags = data.extra_tags}
- module.TAGINFO_MAIN.delete_tags = data.delete_tags
+ remove_group_from_main('delete')
+ merge_filters_into_main('delete', data.delete_keys, data.delete_tags)
+
+ remove_group_from_main('extra')
+ merge_filters_into_main('extra', data.extra_keys, data.extra_tags)
+
+ PRE_FILTER = {prefix = {}, suffix = {}}
+ add_pre_filter{delete = data.delete_keys, extra = data.extra_keys}
end
+
+function module.ignore_tags(data)
+ merge_filters_into_main('delete', data)
+ add_pre_filter{delete = data}
+end
+
+
+function module.add_for_extratags(data)
+ merge_filters_into_main('extra', data)
+ add_pre_filter{extra = data}
+end
+
+
function module.set_main_tags(data)
- MAIN_KEYS = data
- local keys = {}
- for k, _ in pairs(data) do
- table.insert(keys, k)
+ for key, values in pairs(MAIN_KEYS) do
+ for _, ttype in pairs(values) do
+ if ttype == 'fallback' or type(ttype) == 'function' then
+ values[ttype] = nil
+ end
+ end
+ if next(values) == nil then
+ MAIN_KEYS[key] = nil
+ end
+ end
+ module.add_main_tags(data)
+end
+
+
+function module.add_main_tags(data)
+ for k, v in pairs(data) do
+ if MAIN_KEYS[k] == nil then
+ MAIN_KEYS[k] = {}
+ end
+ if type(v) == 'function' then
+ MAIN_KEYS[k][1] = v
+ elseif type(v) == 'string' then
+ MAIN_KEYS[k][1] = PlaceTransform[v]
+ elseif type(v) == 'table' then
+ for subk, subv in pairs(v) do
+ if type(subv) == 'function' then
+ MAIN_KEYS[k][subk] = subv
+ else
+ MAIN_KEYS[k][subk] = PlaceTransform[subv]
+ end
+ end
+ end
end
- module.TAGINFO_MAIN.keys = keys
end
+
function module.set_name_tags(data)
NAMES = module.tag_group(data)
end
end
end
+ remove_group_from_main('fallback:name')
+ merge_filters_into_main('fallback:name', data.house)
end
+
function module.set_address_tags(data)
if data.postcode_fallback ~= nil then
POSTCODE_FALLBACK = data.postcode_fallback
end
end
end
+
+ remove_group_from_main('fallback:address')
+ remove_group_from_main('fallback:postcode')
+ merge_filters_into_main('fallback:address', data.main)
+ if POSTCODE_FALLBACK then
+ merge_filters_into_main('fallback:postcode', data.postcode)
+ end
+ merge_filters_into_main('fallback:address', data.interpolation)
end
+
function module.set_unused_handling(data)
if data.extra_keys == nil and data.extra_tags == nil then
POST_DELETE = module.tag_match{keys = data.delete_keys, tags = data.delete_tags}
projects / nominatim.git / commitdiff