diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 16:49:38 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 16:49:38 +0000 |
commit | bd8128271ad96c97ddaf5c86915a981ddbff86c6 (patch) | |
tree | 19fb138628afa53c660a2db82488d0b703a52fa7 /third_party/waf/waflib/Tools/flex.py | |
parent | Initial commit. (diff) | |
download | tdb-upstream.tar.xz tdb-upstream.zip |
Adding upstream version 1.4.10.upstream/1.4.10upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/waf/waflib/Tools/flex.py')
-rw-r--r-- | third_party/waf/waflib/Tools/flex.py | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/third_party/waf/waflib/Tools/flex.py b/third_party/waf/waflib/Tools/flex.py new file mode 100644 index 0000000..2256657 --- /dev/null +++ b/third_party/waf/waflib/Tools/flex.py @@ -0,0 +1,62 @@ +#!/usr/bin/env python +# encoding: utf-8 +# John O'Meara, 2006 +# Thomas Nagy, 2006-2018 (ita) + +""" +The **flex** program is a code generator which creates C or C++ files. +The generated files are compiled into object files. +""" + +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')) # issue #1207 + +TaskGen.declare_chain( + name = 'flex', + rule = flexfun, # issue #854 + ext_in = '.l', + decider = decide_ext, +) + +# To support the following: +# bld(features='c', flexflags='-P/foo') +Task.classes['flex'].vars = ['FLEXFLAGS', 'FLEX'] +ccroot.USELIB_VARS['c'].add('FLEXFLAGS') +ccroot.USELIB_VARS['cxx'].add('FLEXFLAGS') + +def configure(conf): + """ + Detect the *flex* program + """ + conf.find_program('flex', var='FLEX') + conf.env.FLEXFLAGS = ['-t'] + + if re.search (r"\\msys\\[0-9.]+\\bin\\flex.exe$", conf.env.FLEX[0]): + # this is the flex shipped with MSYS + conf.env.FLEX_MSYS = True + |