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from SCons.Script import *
from SCons.Tool.install import copyFunc
def addLemonBuilder(env):
LemonAction = SCons.Action.Action("$LEMONCOM", "$LEMONCOMSTR")
env["LEMON"] = env.Detect("lemon")
env["LEMONCOM"] = "cd build/; $LEMON $SOURCE"
def headerEmitter(target, source, env):
bs = SCons.Util.splitext(str(source[0].name))[0]
target.append(bs + '.h')
bs = SCons.Util.splitext(str(target[0]))[0] + ".y"
source.append(bs)
return (target, source)
def buildAction(target, source, env):
source_dest = SCons.Util.splitext(str(target[0]))[0] + ".y"
Execute(Copy('build/lempar.c', 'extern/lempar.c'))
Execute(Copy(source_dest, File(source[0]).srcnode()))
LemonAction.execute([target], ['../' + source_dest], env);
Execute(Delete(source_dest))
return 0
builder = Builder(
action = buildAction,
suffix = '.c',
src_suffix = '.y',
emitter = headerEmitter)
env.Append(BUILDERS = {'Lemon': builder})
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