The Meson Build System
http://mesonbuild.com/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
58 lines
1.3 KiB
58 lines
1.3 KiB
#!/usr/bin/python3 -tt |
|
|
|
# Copyright 2012 Jussi Pakkanen |
|
|
|
# Licensed under the Apache License, Version 2.0 (the "License"); |
|
# you may not use this file except in compliance with the License. |
|
# You may obtain a copy of the License at |
|
|
|
# http://www.apache.org/licenses/LICENSE-2.0 |
|
|
|
# Unless required by applicable law or agreed to in writing, software |
|
# distributed under the License is distributed on an "AS IS" BASIS, |
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
|
# See the License for the specific language governing permissions and |
|
# limitations under the License. |
|
|
|
import ply.lex as lex |
|
import ply.yacc as yacc |
|
|
|
tokens = ['LPAREN', |
|
'RPAREN', |
|
'VARIABLE', |
|
'COMMENT', |
|
'EQUALS', |
|
'COMMA', |
|
'DOT', |
|
'STRING'] |
|
|
|
t_EQUALS = '=' |
|
t_LPAREN = '\(' |
|
t_RPAREN = '\)' |
|
t_VARIABLE = '[a-zA-Z][_0-9a-zA-Z]*' |
|
t_COMMENT = '\#[^\n]*' |
|
t_COMMA = ',' |
|
t_DOT = '\.' |
|
t_STRING = "'[^']*'" |
|
|
|
t_ignore = ' \t\n' |
|
|
|
def t_error(t): |
|
print("Illegal character '%s'" % t.value[0]) |
|
t.lexer.skip(1) |
|
|
|
def test_lexer(): |
|
s = """hello = (something) # this = (that) |
|
function(h) |
|
obj.method(lll, 'string') |
|
""" |
|
lexer = lex.lex() |
|
lexer.input(s) |
|
while True: |
|
tok = lexer.token() |
|
if not tok: |
|
break |
|
print(tok) |
|
|
|
if __name__ == '__main__': |
|
test_lexer() |