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#! /usr/bin/env python
# encoding: utf-8
import Task
from TaskGen import extension
bison='${BISON} ${BISONFLAGS} ${SRC[0].abspath()} -o ${TGT[0].name}'
cls=Task.simple_task_type('bison',bison,'GREEN',ext_in='.yc .y .yy',ext_out='.c .cxx .h .l',before='cxx',shell=False)
def big_bison(self,node):
has_h='-d'in self.env['BISONFLAGS']
outs=[]
if node.name.endswith('.yc'):
outs.append(node.change_ext('.tab.cc'))
if has_h:
outs.append(node.change_ext('.tab.hh'))
else:
outs.append(node.change_ext('.tab.c'))
if has_h:
outs.append(node.change_ext('.tab.h'))
tsk=self.create_task('bison',node,outs)
tsk.cwd=node.bld_dir(tsk.env)
self.allnodes.append(outs[0])
def detect(conf):
bison=conf.find_program('bison',var='BISON',mandatory=True)
v=conf.env
v['BISONFLAGS']='-d'
extension(['.y','.yc','.yy'])(big_bison)
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