def comment():
"""
Grammar rule for comment.
"""
return apperggioRegEx(r'[#]{1}[ -~]*')
def specialNumber():
"""
Grammar rule for number.
"""
return apperggioRegEx(r'\d*\.\d+|\d+')
def specialString():
"""
Grammar rule for string.
"""
return '"', apperggioRegEx(r'[ !#-~]*'), '"'
def specialVariable():
"""
Grammar rule for variable.
"""
return apperggioRegEx(r'[a-zA-Z]{1}[a-zA-Z0-9_.]*')