772b2ab8ba
We had been using version 3.2 from 2009, which does not have support for t_eof(). Change-Id: Id5610a272fe2cecd586991f4c59f3ec77184164e Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/56342 Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu> Maintainer: Jason Lowe-Power <power.jg@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com>
27 lines
512 B
Python
27 lines
512 B
Python
# -----------------------------------------------------------------------------
|
|
# lex_optimize4.py
|
|
# -----------------------------------------------------------------------------
|
|
import re
|
|
import sys
|
|
|
|
if ".." not in sys.path: sys.path.insert(0,"..")
|
|
import ply.lex as lex
|
|
|
|
tokens = [
|
|
"PLUS",
|
|
"MINUS",
|
|
"NUMBER",
|
|
]
|
|
|
|
t_PLUS = r'\+?'
|
|
t_MINUS = r'-'
|
|
t_NUMBER = r'(\d+)'
|
|
|
|
def t_error(t):
|
|
pass
|
|
|
|
|
|
# Build the lexer
|
|
lex.lex(optimize=True, lextab="opt4tab", reflags=re.UNICODE)
|
|
lex.runmain(data="3+4")
|