Module: WorldDb::Matcher

Included in:
Reader
Defined in:
lib/worlddb/matcher.rb

Instance Method Summary collapse

Instance Method Details

#match_cities_for_country(name, &blk) ⇒ Object 



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# File 'lib/worlddb/matcher.rb', line 84

def match_cities_for_country( name, &blk )
  ## todo: check if there's a better (more ruby way) to pass along code block ??
  ## e.g. try
  ##   match_xxx_for_country( name, 'cities') { |country_key| yield(country_key) }

  match_xxx_for_country( name, 'cities', &blk )
end

#match_countries_for_continent(name) ⇒ Object 



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# File 'lib/worlddb/matcher.rb', line 110

def match_countries_for_continent( name )
  if name =~ /^([a-z][a-z\-_]+[a-z])\/countries/     # e.g. africa/countries or america/countries
    ### NB: continent changed to regions (e.g. middle-east, caribbean, north-america, etc.)
    ## auto-add continent (from folder structure) as tag
    ## fix: allow dash/hyphen/minus in tag
    continent = $1.dup
    yield( continent )
    true
  else
    false # no match found
  end
end

#match_regions_abbr_for_country(name, &blk) ⇒ Object 



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# File 'lib/worlddb/matcher.rb', line 97

def match_regions_abbr_for_country( name, &blk )
  match_xxx_for_country( name, 'regions\.abbr', &blk )  # NB: . gets escaped for regex, that is, \.
end

#match_regions_for_country(name, &blk) ⇒ Object 



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# File 'lib/worlddb/matcher.rb', line 92

def match_regions_for_country( name, &blk )
  ## todo: check if there's a better (more ruby way) to pass along code block ??
  match_xxx_for_country( name, 'regions', &blk )
end

#match_regions_iso_for_country(name, &blk) ⇒ Object

NB: . gets escaped for regex, that is, .



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# File 'lib/worlddb/matcher.rb', line 101

def match_regions_iso_for_country( name, &blk )  # NB: . gets escaped for regex, that is, \.
  match_xxx_for_country( name, 'regions\.iso', &blk )
end

#match_regions_nuts_for_country(name, &blk) ⇒ Object

NB: . gets escaped for regex, that is, .



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# File 'lib/worlddb/matcher.rb', line 105

def match_regions_nuts_for_country( name, &blk )  # NB: . gets escaped for regex, that is, \.
  match_xxx_for_country( name, 'regions\.nuts', &blk )
end

#match_xxx_for_country(name, xxx) ⇒ Object

xxx e.g. cities|regions|beers|breweries



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# File 'lib/worlddb/matcher.rb', line 7

def match_xxx_for_country( name, xxx )  # xxx e.g. cities|regions|beers|breweries
  #      auto-add required country code (from folder structure)
  #  note: always let match_xxx_for_country_n_region go first

  # note: allow  /cities and /1--hokkaido--cities
  xxx_pattern = "(?:#{xxx}|[0-9]+--[^\\/]+?--#{xxx})"    # note: double escape \\ required for backslash

  if name =~ /(?:^|\/)([a-z]{2,3})-[^\/]+\/#{xxx_pattern}/         ||    # (1)
     name =~ /(?:^|\/)[0-9]+--([a-z]{2,3})-[^\/]+\/#{xxx_pattern}/ ||    # (2)
     name =~ /(?:^|\/)([a-z]{2,3})\/#{xxx_pattern}/                ||    # (3)
     name =~ /(?:^|\/)([a-z]{2,3})-[^\/]+\/[0-9]+--[^\/]+\/#{xxx_pattern}/    # (4)

    country_key = $1.dup
    yield( country_key )
    true # bingo - match found
    
    ######
    # (1)  new style: e.g. /at-austria/beers or ^at-austria!/cities
    #
    # (2)  new-new style e.g. /1--at-austria--central/cities
    #
    # (3)  classic style: e.g. /at/beers (europe/at/cities)
    #
    # (4) new style w/ region w/o abbrev/code e.g. /ja-japon/1--hokkaido/cities
  else
    false # no match found
  end
end

#match_xxx_for_country_n_region(name, xxx) ⇒ Object

xxx e.g. wine|wineries



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# File 'lib/worlddb/matcher.rb', line 37

def match_xxx_for_country_n_region( name, xxx ) # xxx e.g. wine|wineries

  # auto-add required country n region code (from folder structure)

  ## -- allow opt_folders after long regions (e.g. additional subregion/zone)
  ## -- allow anything (prefixes) before -- for xxx
  #       e.g.  at-austria!/1--n-niederoesterreich--eastern/wagram--wines
  #             at-austria!/1--n-niederoesterreich--eastern/wagram--wagram--wines

  # note: allow  /cities and /1--hokkaido--cities and /hokkaido--cities too
  xxx_pattern = "(?:#{xxx}|[^\\/]+--#{xxx})"    # note: double escape \\ required for backslash
  
  ## allow optional folders -- TODO: add restriction ?? e.g. must be 4+ alphas ???
  opt_folders_pattern = "(?:\/[^\/]+)*"
  ## note: for now only (style #2) n (style #3)  that is long region allow opt folders

  if name =~ /(?:^|\/)([a-z]{2,3})-[^\/]+\/([a-z]{1,3})-[^\/]+\/#{xxx_pattern}/  ||                # (1)
     name =~ /(?:^|\/)[0-9]+--([a-z]{2,3})-[^\/]+\/[0-9]+--([a-z]{1,3})-[^\/]+#{opt_folders_pattern}\/#{xxx_pattern}/ || # (2)
     name =~ /(?:^|\/)([a-z]{2,3})-[^\/]+\/[0-9]+--([a-z]{1,3})-[^\/]+#{opt_folders_pattern}\/#{xxx_pattern}/         || # (3)
     name =~ /(?:^|\/)[0-9]+--([a-z]{2,3})-[^\/]+\/([a-z]{1,3})-[^\/]+\/#{xxx_pattern}/            # (4)

    #######
    # nb: country must start name (^) or coming after / e.g. europe/at-austria/...
    # (1)
    # new style: e.g.  /at-austria/w-wien/cities or
    #                  ^at-austria!/w-wien/cities
    # (2)
    # new new style e.g.  /1--at-austria--central/1--w-wien--eastern/cities
    #
    # (3)
    #  new new mixed style e.g.  /at-austria/1--w-wien--eastern/cities
    #      "classic" country plus new new region
    #
    # (4)
    #  new new mixed style e.g.  /1--at-austria--central/w-wien/cities
    #      new new country plus "classic" region

    country_key = $1.dup
    region_key  = $2.dup
    yield( country_key, region_key )
    true # bingo - match found
  else
    false # no match found
  end
end