Source

SCons / test / LEX / LEXFLAGS.py

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

import os

import TestSCons

_python_ = TestSCons._python_
_exe   = TestSCons._exe

test = TestSCons.TestSCons()

test.subdir('in')



test.write('mylex.py', """
import getopt
import sys
cmd_opts, args = getopt.getopt(sys.argv[1:], 'I:tx', [])
opt_string = ''
i_arguments = ''
for opt, arg in cmd_opts:
    if opt == '-I': i_arguments = i_arguments + ' ' + arg
    else: opt_string = opt_string + ' ' + opt
for a in args:
    contents = open(a, 'rb').read()
    contents = contents.replace('LEXFLAGS', opt_string)
    contents = contents.replace('I_ARGS', i_arguments)
    sys.stdout.write(contents)
sys.exit(0)
""")

test.write('SConstruct', """
env = Environment(LEX = r'%(_python_)s mylex.py',
                  LEXFLAGS = '-x -I${TARGET.dir} -I${SOURCE.dir}',
                  tools=['default', 'lex'])
env.CFile(target = 'out/aaa', source = 'in/aaa.l')
""" % locals())

test.write(['in', 'aaa.l'],		"aaa.l\nLEXFLAGS\nI_ARGS\n")

test.run('.', stderr = None)

# Read in with mode='r' because mylex.py implicitley wrote to stdout
# with mode='w'.
test.must_match(['out', 'aaa.c'],	"aaa.l\n -x -t\n out in\n", mode='r')



test.pass_test()

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