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from sly import Lexer, Parser
class TimedWordLexer(Lexer):
tokens = {LPAREN, RPAREN, IDENTIFIER, NUMBER, ARGSEP, FUNCTIONSEP}
ignore = ' \t'
LPAREN = r'\('
RPAREN = r'\)'
IDENTIFIER = r'[a-zA-Z_][a-zA-Z0-9_]*'
NUMBER = r'[0-9e.]+'
ARGSEP = r','
FUNCTIONSEP = r';'
class TimedSequenceLexer(Lexer):
tokens = {LPAREN, RPAREN, LBRACE, RBRACE, CYCLE, IDENTIFIER, NUMBER, ARGSEP, FUNCTIONSEP}
ignore = ' \t'
LPAREN = r'\('
RPAREN = r'\)'
LBRACE = r'\{'
RBRACE = r'\}'
CYCLE = r'cycle'
IDENTIFIER = r'[a-zA-Z_][a-zA-Z0-9_]*'
NUMBER = r'[0-9e.]+'
ARGSEP = r','
FUNCTIONSEP = r';'
def error(self, t):
print("Illegal character '%s'" % t.value[0])
if t.value[0] == '{' and t.value.find('}'):
self.index += 1 + t.value.find('}')
else:
self.index += 1
class TimedWordParser(Parser):
tokens = TimedWordLexer.tokens
@_('timedSymbol FUNCTIONSEP timedWord')
def timedWord(self, p):
ret = [p.timedSymbol]
ret.extend(p.timedWord)
return ret
@_('timedSymbol FUNCTIONSEP', 'timedSymbol')
def timedWord(self, p):
return [p.timedSymbol]
@_('IDENTIFIER', 'IDENTIFIER LPAREN RPAREN')
def timedSymbol(self, p):
return (p.IDENTIFIER,)
@_('IDENTIFIER LPAREN args RPAREN')
def timedSymbol(self, p):
return (p.IDENTIFIER, *p.args)
@_('arg ARGSEP args')
def args(self, p):
ret = [p.arg]
ret.extend(p.args)
return ret
@_('arg')
def args(self, p):
return [p.arg]
@_('NUMBER')
def arg(self, p):
return float(p.NUMBER)
@_('IDENTIFIER')
def arg(self, p):
return p.IDENTIFIER
class TimedSequenceParser(Parser):
tokens = TimedSequenceLexer.tokens
@_('timedSequenceL', 'timedSequenceW')
def timedSequence(self, p):
return p[0]
@_('loop')
def timedSequenceL(self, p):
return [p.loop]
@_('loop timedSequenceW')
def timedSequenceL(self, p):
ret = [p.loop]
ret.extend(p.timedSequenceW)
return ret
@_('timedWord')
def timedSequenceW(self, p):
return [p.timedWord]
@_('timedWord timedSequenceL')
def timedSequenceW(self, p):
ret = [p.timedWord]
ret.extend(p.timedSequenceL)
return ret
@_('timedSymbol FUNCTIONSEP timedWord')
def timedWord(self, p):
p.timedWord.word.insert(0, p.timedSymbol)
return p.timedWord
@_('timedSymbol FUNCTIONSEP')
def timedWord(self, p):
return TimedWord(word=[p.timedSymbol])
@_('CYCLE LPAREN IDENTIFIER RPAREN LBRACE timedWord RBRACE')
def loop(self, p):
return Workload(p.IDENTIFIER, p.timedWord)
@_('IDENTIFIER', 'IDENTIFIER LPAREN RPAREN')
def timedSymbol(self, p):
return (p.IDENTIFIER,)
@_('IDENTIFIER LPAREN args RPAREN')
def timedSymbol(self, p):
return (p.IDENTIFIER, *p.args)
@_('arg ARGSEP args')
def args(self, p):
ret = [p.arg]
ret.extend(p.args)
return ret
@_('arg')
def args(self, p):
return [p.arg]
@_('NUMBER')
def arg(self, p):
return float(p.NUMBER)
@_('IDENTIFIER')
def arg(self, p):
return p.IDENTIFIER
def error(self, p):
if p:
print("Syntax error at token", p.type)
# Just discard the token and tell the parser it's okay.
self.errok()
else:
print("Syntax error at EOF")
class TimedWord:
def __init__(self, word_string=None, word=list()):
if word_string is not None:
lexer = TimedWordLexer()
parser = TimedWordParser()
self.word = parser.parse(lexer.tokenize(word_string))
else:
self.word = word
def __getitem__(self, item):
return self.word[item]
def __repr__(self):
ret = list()
for symbol in self.word:
ret.append('{}({})'.format(symbol[0], ', '.join(map(str, symbol[1:]))))
return 'TimedWord<"{}">'.format('; '.join(ret))
class Workload:
def __init__(self, name, word):
self.name = name
self.word = word
def __getitem__(self, item):
return self.word[item]
def __repr__(self):
return 'Workload("{}", {})'.format(self.name, self.word)
class TimedSequence:
def __init__(self, seq_string=None, seq=list()):
if seq_string is not None:
lexer = TimedSequenceLexer()
parser = TimedSequenceParser()
self.seq = parser.parse(lexer.tokenize(seq_string))
else:
self.seq = seq
def __getitem__(self, item):
return self.seq[item]
def __repr__(self):
ret = list()
for symbol in self.seq:
ret.append('{}'.format(symbol))
return 'TimedSequence(seq=[{}])'.format(', '.join(ret))
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