#!/usr/bin/env python
#
# MIT License
#
# Copyright The SCons Foundation
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

"""
Test LEX and LEXFLAGS with a live lex.
"""

import TestSCons

_exe = TestSCons._exe
_python_ = TestSCons._python_

test = TestSCons.TestSCons()

lex = test.where_is('win_flex') or test.where_is('lex') or test.where_is('flex')
if not lex:
    test.skip_test('No lex or flex found; skipping test.\n')

test.file_fixture('wrapper.py')

test.write('SConstruct', """
DefaultEnvironment(tools=[])
foo = Environment()
lex = foo.Dictionary('LEX')
bar = Environment(LEX=r'%(_python_)s wrapper.py ' + lex, LEXFLAGS='-b')
foo.Program(target='foo', source='foo.l')
bar.Program(target='bar', source='bar.l')
""" % locals())

lex = r"""
%%%%
a       printf("A%sA");
b       printf("B%sB");
%%%%
int
yywrap()
{
    return 1;
}

int
main()
{
    yylex();
}
"""

test.write('foo.l', lex % ('foo.l', 'foo.l'))
test.write('bar.l', lex % ('bar.l', 'bar.l'))

test.run(arguments='foo' + _exe, stderr=None)
test.must_not_exist(test.workpath('wrapper.out'))
test.must_not_exist(test.workpath('lex.backup'))

test.run(program=test.workpath('foo'), stdin="a\n", stdout="Afoo.lA\n")
test.run(arguments='bar' + _exe)
test.must_match(test.workpath('wrapper.out'), "wrapper.py\n")
test.must_exist(test.workpath('lex.backup'))

test.run(program=test.workpath('bar'), stdin="b\n", stdout="Bbar.lB\n")

test.pass_test()

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# indent-tabs-mode:nil
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