# Read in file.
# Parse JSON, extract current weather.
#
# Print the weather out to the user, nicely formatted.
#
# If file cannot be opened, or invalid JSON is detected, 
# prints an error message and exits.
#
def read_weather(filename):

   # Open file

   # Read until opening curly-bracket
   read_until_curly_bracket()
   # Handle errors returned by curly-bracket method.
   
   read_next_field_name()
   # Handle errors returned by method

#
# Read white-space up to first curly-bracket.
#
# Returns true if found, false if characters other than curly-bracket and white-space are found.
#
def read_until_curly_bracket(file):

  # Loop, reading whitespace or curly-bracket until curly-bracket found.

#
# Reads in a field name (surrounded by quotes), up to the next colon.
# If quote is not next character read from file, returns false
#
def read_next_field_name():
  
  # Read quote.  Error if not quote.