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#! /usr/bin/env python
# encoding: utf-8
# WARNING! Do not edit! https://waf.io/book/index.html#_obtaining_the_waf_file
import os,re
from waflib import Task,TaskGen
from waflib.Tools import ccroot
def decide_ext(self,node):
if'cxx'in self.features:
return['.lex.cc']
return['.lex.c']
def flexfun(tsk):
env=tsk.env
bld=tsk.generator.bld
wd=bld.variant_dir
def to_list(xx):
if isinstance(xx,str):return[xx]
return xx
tsk.last_cmd=lst=[]
lst.extend(to_list(env.FLEX))
lst.extend(to_list(env.FLEXFLAGS))
inputs=[a.path_from(tsk.get_cwd())for a in tsk.inputs]
if env.FLEX_MSYS:
inputs=[x.replace(os.sep,'/')for x in inputs]
lst.extend(inputs)
lst=[x for x in lst if x]
txt=bld.cmd_and_log(lst,cwd=wd,env=env.env or None,quiet=0)
tsk.outputs[0].write(txt.replace('\r\n','\n').replace('\r','\n'))
TaskGen.declare_chain(name='flex',rule=flexfun,ext_in='.l',decider=decide_ext,)
Task.classes['flex'].vars=['FLEXFLAGS','FLEX']
ccroot.USELIB_VARS['c'].add('FLEXFLAGS')
ccroot.USELIB_VARS['cxx'].add('FLEXFLAGS')
def configure(conf):
conf.find_program('flex',var='FLEX')
conf.env.FLEXFLAGS=['-t']
if re.search(r"\\msys\\[0-9.]+\\bin\\flex.exe$",conf.env.FLEX[0]):
conf.env.FLEX_MSYS=True
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