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

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

import TestSCons

python = TestSCons.python

test = TestSCons.TestSCons()



test.write('mylex.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 != '/*lex*/\\n', infile.readlines()):
        outfile.write(l)
sys.exit(0)
""")

test.write('SConstruct', """
env = Environment(tools=['default', 'lex'],
                  LEXCOM = r'%s mylex.py $TARGET $SOURCES',
                  LEXCOMSTR = 'Lexing $TARGET from $SOURCE')
env.CFile(target = 'aaa', source = 'aaa.l')
env.CFile(target = 'bbb', source = 'bbb.lex')
""" % python)

test.write('aaa.l', "aaa.l\n/*lex*/\n")
test.write('bbb.lex', "bbb.lex\n/*lex*/\n")

test.run(stdout = test.wrap_stdout("""\
Lexing aaa.c from aaa.l
Lexing bbb.c from bbb.lex
"""))

test.must_match('aaa.c', "aaa.l\n")
test.must_match('bbb.c', "bbb.lex\n")



test.pass_test()