#!/usr/bin/env python
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__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"

"""
Test that the $M4COMSTR construction variable allows you to customize
the displayed string when m4 is called.
"""

import TestSCons

_python_ = TestSCons._python_

test = TestSCons.TestSCons()



test.write('mym4.py', """
import sys
outfile = open(sys.argv[1], 'wb')
for f in sys.argv[2:]:
    infile = open(f, 'rb')
    for l in filter(lambda l: l != '/*m4*/\\n', infile.readlines()):
        outfile.write(l)
sys.exit(0)
""")

test.write('SConstruct', """
env = Environment(tools=['default', 'm4'],
                  M4COM = r'%(_python_)s mym4.py $TARGET $SOURCES',
                  M4COMSTR = 'M4ing $TARGET from $SOURCE')
env.M4(target = 'aaa.out', source = 'aaa.in')
""" % locals())

test.write('aaa.in', "aaa.in\n/*m4*/\n")

test.run(stdout = test.wrap_stdout("""\
M4ing aaa.out from aaa.in
"""))

test.must_match('aaa.out', "aaa.in\n")



test.pass_test()