get("#349") -- table functions

function getBridgeMap(masterBridge)
  local title = getSnippetTitle(masterBridge)
  local _, _, masterSourceID, masterDestID = title:find("from (#%d+) to (#%d+)")
  
  local idmap = {}
  idmap[masterSourceID] = masterDestID
  
  local refs = findNTTitle("Need bridge from % following master bridge "..masterBridge)
  for r in all(refs) do
    local title = getSnippetTitle(r)
    local _, _, sourceID = title:find("^Need bridge from (#%d+)")
    idmap[sourceID] = '<unbridged '..sourceID..'>'
  end
  
  local refs = findNTTitle("A bridge from % following master bridge "..masterBridge)
  for r in all(refs) do
    local title = getSnippetTitle(r)
    local _, _, sourceID, destID = title:find("^A bridge from (#%d+) to (#%d+)")
    idmap[sourceID] = destID
  end
  
  return idmap
end