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"""SCons.Scanner.Fortran
This module implements the dependency scanner for Fortran code.
"""
#
# Copyright (c) 2001, 2002, 2003 Steven Knight
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
import re
import SCons.Node
import SCons.Node.FS
import SCons.Scanner
import SCons.Util
import SCons.Warnings
include_re = re.compile("INCLUDE[ \t]+'([\\w./\\\\]+)'", re.M)
def FortranScan(fs = SCons.Node.FS.default_fs):
"""Return a prototype Scanner instance for scanning source files
for Fortran INCLUDE statements"""
scanner = SCons.Scanner.Current(scan, "FortranScan", fs,
[".f", ".F", ".for", ".FOR"],
path_function = path,
recursive = 1)
return scanner
def path(env, dir, fs = SCons.Node.FS.default_fs):
try:
f77path = env['F77PATH']
except KeyError:
return ()
return tuple(fs.Rsearchall(SCons.Util.mapPaths(f77path, dir, env),
clazz = SCons.Node.FS.Dir,
must_exist = 0))
def scan(node, env, f77path = (), fs = SCons.Node.FS.default_fs):
"""
scan(node, Environment) -> [node]
the Fortran dependency scanner function
"""
node = node.rfile()
# This function caches the following information:
# node.includes - the result of include_re.findall()
if not node.exists():
return []
# cache the includes list in node so we only scan it once:
if node.includes != None:
includes = node.includes
else:
includes = include_re.findall(node.get_contents())
node.includes = includes
source_dir = node.get_dir()
nodes = []
for include in includes:
n = SCons.Node.FS.find_file(include,
(source_dir,) + f77path,
fs.File)
if not n is None:
nodes.append(n)
else:
SCons.Warnings.warn(SCons.Warnings.DependencyWarning,
"No dependency generated for file: %s (included from: %s) -- file not found" % (include, node))
# Schwartzian transform from the Python FAQ Wizard
def st(List, Metric):
def pairing(element, M = Metric):
return (M(element), element)
def stripit(pair):
return pair[1]
paired = map(pairing, List)
paired.sort()
return map(stripit, paired)
def normalize(node):
# We don't want the order of includes to be
# modified by case changes on case insensitive OSes, so
# normalize the case of the filename here:
# (see test/win32pathmadness.py for a test of this)
return SCons.Node.FS._my_normcase(str(node))
return st(nodes, normalize)
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