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# utils.rb
class Language
@@languages = {}
attr_reader :code, :english_name, :native_name
def initialize(options)
@code = options['code']
@english_name = options['english_name']
@native_name = options['native_name']
@@languages[@code] = self
end
def self.[](code)
@@languages[code] || self.new('code' => code, 'english_name' => '(unknown)', 'native_name' => '(unknown)')
end
def self.each
@@languages.keys.sort.each do |lang|
yield @@languages[lang]
end
end
end
# patches convenience methods into base classes
class Fixnum
# convert to string with this space as thousand separator
def to_s_with_ts
self.to_s.gsub(/(\d)(?=(\d\d\d)+(?!\d))/, "\\1 ")
end
end
def breadcrumbs
return @breadcrumbs.map{ |name, link|
if link
"<a href='#{link}'>#{name}</a>"
else
name
end
}.join(' » ')
end
def title
@title = [] if @title.nil?
@title = [@title] unless @title.is_a?(Array)
@title << 'OpenStreetMap Taginfo'
@title.join(' | ')
end
# Escape tag key or value for XAPI according to
# http://wiki.openstreetmap.org/wiki/XAPI#Escaping
def xapi_escape(text)
text.gsub(/([|\[\]*\/=()\\])/, '\\\\\1')
end
def xapi_url(element, key, value=nil)
predicate = xapi_escape(key) + '='
if value.nil?
predicate += '*'
else
predicate += xapi_escape(value)
end
"http://www.informationfreeway.org/api/0.6/#{ element }[#{ Rack::Utils::escape(predicate) }]"
end
def xapi_link(element, key, value=nil)
"<a id='xapi' href='#{ xapi_url(element, key, value) }'>XAPI</a>"
end
def josm_link(element, key, value=nil)
"<a id='josm' href='http://localhost:8111/import?url=#{ xapi_url(element, key, value) }'>JOSM</a>"
end
def tagcloud_size(tag)
#(Math.log(0.000001 + tag['scale'].to_f * Math::E) * 36 + 12).to_i
x = tag['scale1'].to_f / 17 / 2 + tag['pos'] / 2
(x * 24 + 12).to_i
end
def tagcloud_color(tag)
c = 0xa0;
if tag['in_wiki'] == '1'
c -= 0x40;
end
if tag['in_josm'] == '1'
c -= 0x60;
end
sprintf('#%02x%02x%02x', c, c, c)
c = '#000000';
end
def get_filter
f = params[:filter].to_s == '' ? 'all' : params[:filter]
if f !~ /^(all|nodes|ways|relations)$/
raise ArgumentError, "unknown filter"
end
f
end
def get_total(type)
key = {
'all' => 'objects',
'nodes' => 'nodes_with_tags',
'ways' => 'ways',
'relations' => 'relations' }[type]
return @stats[key]
end
# see also web/public/js/taginfo.js
def pp_key(key)
if key == ''
return '<span class="badchar empty">empty string</span>'
end
pp_chars = '!"#$%&()*+,-/;<=>?@[\\]^`{|}~' + "'";
result = ''
key.each_char do |c|
if (!pp_chars.index(c).nil?)
result += '<span class="badchar">' + c + '</span>'
elsif (c == ' ')
result += '<span class="badchar">␣</span>'
elsif (c.match(/\s/))
result += '<span class="whitespace"> </span>'
else
result += c;
end
end
return result;
end
# see also web/public/js/taginfo.js
def pp_value(value)
if value == ''
return '<span class="badchar empty">empty string</span>'
end
return escape_html(value).gsub(/ /, '␣').gsub(/\s/, '<span class="whitespace"> </span>')
end
def link_to_key(key)
k = escape(key)
title = escape_html(key)
if key.match(/[=\/]/)
return '<a class="taglink" href="/keys/?key=' + k + '" title="' + title + '">' + pp_key(key) + '</a>'
else
return '<a class="taglink" href="/keys/' + k + '" title="' + title + '">' + pp_key(key) + '</a>'
end
end
def link_to_value(key, value)
k = escape(key)
v = escape(value)
title = escape_html(key) + '=' + escape_html(value)
if key.match(/[=\/]/) || value.match(/[=\/]/)
return '<a class="taglink" href="/tags/?key=' + k + '&value=' + v + '" title="' + title + '">' + pp_value(value) + '</a>'
else
return '<a class="taglink" href="/tags/' + k + '=' + v + '" title="' + title + '">' + pp_value(value) + '</a>'
end
end
def link_to_tag(key, value)
return link_to_key(key) + '=' + link_to_value(key, value)
end
def external_link(title, link)
%Q{→ <a class="extlink" href="#{link}" target="_blank">#{title}</a>}
end
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