ref: 193dcbb9a1412067b126aeffaf84bb66ee7027ba
dir: /waflib/Tools/flex.py/
#! /usr/bin/env python
# encoding: utf-8
# WARNING! Do not edit! http://waf.googlecode.com/git/docs/wafbook/single.html#_obtaining_the_waf_file
import waflib.TaskGen,os,re
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(bld.bldnode)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'))
waflib.TaskGen.declare_chain(name='flex',rule=flexfun,ext_in='.l',decider=decide_ext,)
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