ecb4d2a89f
placeholders to avoid unexpected substitutions
(e.g.) with i = 110:
line = re.sub(r'20', re.escape(str(i+10)), line.rstrip())
20 -> 110
line = re.sub(r'11', re.escape(str(i + 1)), line.rstrip())
110 -> 1010
line = re.sub(r'10(?![0-9])', re.escape(str(i)), line.rstrip())
1100 -> 10100
251 lines
12 KiB
Python
Executable File
251 lines
12 KiB
Python
Executable File
# Copyright Deniz Bahadir 2015
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#
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# Distributed under the Boost Software License, Version 1.0.
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# (See accompanying file LICENSE_1_0.txt or copy at
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# http://www.boost.org/LICENSE_1_0.txt)
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#
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# See http://www.boost.org/libs/mpl for documentation.
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# See http://stackoverflow.com/a/20660264/3115457 for further information.
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# See http://stackoverflow.com/a/29627158/3115457 for further information.
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import fix_boost_mpl_preprocess as fixmpl
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import argparse
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import sys
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import os
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import os.path
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import re
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import fileinput
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import shutil
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def create_more_container_files(sourceDir, suffix, maxElements, containers, containers2):
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"""Creates additional files for the individual MPL-containers."""
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# Create files for each MPL-container with 20 to 'maxElements' elements
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# which will be used during generation.
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for container in containers:
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for i in range(20, maxElements, 10):
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# Create copy of "template"-file.
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newFile = os.path.join( sourceDir, container, container + str(i+10) + suffix )
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shutil.copyfile( os.path.join( sourceDir, container, container + "20" + suffix ), newFile )
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# Adjust copy of "template"-file accordingly.
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for line in fileinput.input( newFile, inplace=1, mode="rU" ):
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line = re.sub(r'20', '%TWENTY%', line.rstrip())
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line = re.sub(r'11', '%ELEVEN%', line.rstrip())
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line = re.sub(r'10(?![0-9])', '%TEN%', line.rstrip())
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line = re.sub(r'%TWENTY%', re.escape(str(i+10)), line.rstrip())
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line = re.sub(r'%ELEVEN%', re.escape(str(i + 1)), line.rstrip())
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line = re.sub(r'%TEN%', re.escape(str(i)), line.rstrip())
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print(line)
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for container in containers2:
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for i in range(20, maxElements, 10):
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# Create copy of "template"-file.
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newFile = os.path.join( sourceDir, container, container + str(i+10) + "_c" + suffix )
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shutil.copyfile( os.path.join( sourceDir, container, container + "20_c" + suffix ), newFile )
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# Adjust copy of "template"-file accordingly.
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for line in fileinput.input( newFile, inplace=1, mode="rU" ):
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line = re.sub(r'20', '%TWENTY%', line.rstrip())
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line = re.sub(r'11', '%ELEVEN%', line.rstrip())
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line = re.sub(r'10(?![0-9])', '%TEN%', line.rstrip())
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line = re.sub(r'%TWENTY%', re.escape(str(i+10)), line.rstrip())
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line = re.sub(r'%ELEVEN%', re.escape(str(i + 1)), line.rstrip())
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line = re.sub(r'%TEN%', re.escape(str(i)), line.rstrip())
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print(line)
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def create_input_for_numbered_sequences(headerDir, sourceDir, containers, maxElements):
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"""Creates additional source- and header-files for the numbered sequence MPL-containers."""
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# Create additional container-list without "map".
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containersWithoutMap = containers[:]
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try:
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containersWithoutMap.remove('map')
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except ValueError:
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# We can safely ignore if "map" is not contained in 'containers'!
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pass
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# Create header/source-files.
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create_more_container_files(headerDir, ".hpp", maxElements, containers, containersWithoutMap)
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create_more_container_files(sourceDir, ".cpp", maxElements, containers, containersWithoutMap)
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def adjust_container_limits_for_variadic_sequences(headerDir, containers, maxElements):
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"""Adjusts the limits of variadic sequence MPL-containers."""
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for container in containers:
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headerFile = os.path.join( headerDir, "limits", container + ".hpp" )
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regexMatch = r'(define\s+BOOST_MPL_LIMIT_' + container.upper() + r'_SIZE\s+)[0-9]+'
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regexReplace = r'\g<1>' + re.escape( str(maxElements) )
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for line in fileinput.input( headerFile, inplace=1, mode="rU" ):
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line = re.sub(regexMatch, regexReplace, line.rstrip())
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print(line)
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def current_boost_dir():
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"""Returns the (relative) path to the Boost source-directory this file is located in (if any)."""
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# Path to directory containing this script.
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path = os.path.dirname( os.path.realpath(__file__) )
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# Making sure it is located in "${boost-dir}/libs/mpl/preprocessed".
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for directory in reversed( ["libs", "mpl", "preprocessed"] ):
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(head, tail) = os.path.split(path)
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if tail == directory:
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path = head
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else:
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return None
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return os.path.relpath( path )
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def to_positive_multiple_of_10(string):
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"""Converts a string into its encoded positive integer (greater zero) or throws an exception."""
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try:
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value = int(string)
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except ValueError:
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msg = '"%r" is not a positive multiple of 10 (greater zero).' % string
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raise argparse.ArgumentTypeError(msg)
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if value <= 0 or value % 10 != 0:
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msg = '"%r" is not a positive multiple of 10 (greater zero).' % string
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raise argparse.ArgumentTypeError(msg)
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return value
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def to_existing_absolute_path(string):
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"""Converts a path into its absolute path and verifies that it exists or throws an exception."""
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value = os.path.abspath(string)
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if not os.path.exists( value ) or not os.path.isdir( value ):
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msg = '"%r" is not a valid path to a directory.' % string
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raise argparse.ArgumentTypeError(msg)
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return value
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def main():
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"""The main function."""
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# Find the current Boost source-directory in which this script is located.
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sourceDir = current_boost_dir()
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if sourceDir == None:
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sourceDir = ""
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# Prepare and run cmdline-parser.
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cmdlineParser = argparse.ArgumentParser(description="A generator-script for pre-processed Boost.MPL headers.")
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cmdlineParser.add_argument("-v", "--verbose", dest='verbose', action='store_true',
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help="Be a little bit more verbose.")
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cmdlineParser.add_argument("-s", "--sequence-type", dest='seqType', choices=['variadic', 'numbered', 'both'],
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default='both',
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help="Only update pre-processed headers for the selected sequence types, "
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"either 'numbered' sequences, 'variadic' sequences or 'both' sequence "
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"types. (Default=both)")
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cmdlineParser.add_argument("--no-vector", dest='want_vector', action='store_false',
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help="Do not update pre-processed headers for Boost.MPL Vector.")
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cmdlineParser.add_argument("--no-list", dest='want_list', action='store_false',
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help="Do not update pre-processed headers for Boost.MPL List.")
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cmdlineParser.add_argument("--no-set", dest='want_set', action='store_false',
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help="Do not update pre-processed headers for Boost.MPL Set.")
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cmdlineParser.add_argument("--no-map", dest='want_map', action='store_false',
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help="Do not update pre-processed headers for Boost.MPL Map.")
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cmdlineParser.add_argument("--num-elements", dest='numElements', metavar="<num-elements>",
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type=to_positive_multiple_of_10, default=100,
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help="The maximal number of elements per container sequence. (Default=100)")
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cmdlineParser.add_argument(dest='sourceDir', metavar="<source-dir>", default=current_boost_dir(), nargs='?',
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type=to_existing_absolute_path,
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help="The source-directory of Boost. (Default=\"" + sourceDir + "\")")
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args = cmdlineParser.parse_args()
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# Some verbose debug output.
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if args.verbose:
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print "Arguments extracted from command-line:"
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print " verbose = ", args.verbose
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print " source directory = ", args.sourceDir
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print " num elements = ", args.numElements
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print " sequence type = ", args.seqType
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print " want: vector = ", args.want_vector
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print " want: list = ", args.want_list
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print " want: set = ", args.want_set
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print " want: map = ", args.want_map
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# Verify that we received any source-directory.
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if args.sourceDir == None:
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print "You should specify a valid path to the Boost source-directory."
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sys.exit(0)
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# The directories for header- and source files of Boost.MPL.
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# NOTE: Assuming 'args.sourceDir' is the source-directory of the entire boost project.
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headerDir = os.path.join( args.sourceDir, "boost", "mpl" )
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sourceDir = os.path.join( args.sourceDir, "libs", "mpl", "preprocessed" )
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# Check that the header/source-directories exist.
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if not os.path.exists( headerDir ) or not os.path.exists( sourceDir ):
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# Maybe 'args.sourceDir' is not the source-directory of the entire boost project
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# but instead of the Boost.MPL git-directory, only?
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headerDir = os.path.join( args.sourceDir, "include", "boost", "mpl" )
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sourceDir = os.path.join( args.sourceDir, "preprocessed" )
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if not os.path.exists( headerDir ) or not os.path.exists( sourceDir ):
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cmdlineParser.print_usage()
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print "error: Cannot find Boost.MPL header/source files in given Boost source-directory!"
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sys.exit(0)
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# Some verbose debug output.
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if args.verbose:
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print "Chosen header-directory: ", headerDir
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print "Chosen source-directory: ", sourceDir
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# Create list of containers for which files shall be pre-processed.
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containers = []
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if args.want_vector:
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containers.append('vector')
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if args.want_list:
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containers.append('list')
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if args.want_set:
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containers.append('set')
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if args.want_map:
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containers.append('map')
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if containers == []:
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print "Nothing to do."
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print "(Why did you prevent generating pre-processed headers for all Boost.MPL container types?)"
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sys.exit(0)
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# Possibly fix the header-comments of input-files needed for pre-processing.
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if args.verbose:
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print "Checking if prior to pre-processing some input-files need fixing."
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needFixing = fixmpl.check_input_files(headerDir, sourceDir, containers, args.seqType, args.verbose)
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if needFixing:
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if args.verbose:
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print "Fixing of some input-files prior to pre-processing is needed."
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print "Will fix them now!"
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fixmpl.fix_input_files(headerDir, sourceDir, containers, args.seqType, args.verbose)
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# Some verbose debug output.
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if args.verbose:
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print "Containers for which to pre-process headers: ", containers
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# Create (additional) input files for generating pre-processed headers of numbered sequence MPL containers.
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if args.seqType == "both" or args.seqType == "numbered":
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create_input_for_numbered_sequences(headerDir, sourceDir, containers, args.numElements)
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# Modify settings for generating pre-processed headers of variadic sequence MPL containers.
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if args.seqType == "both" or args.seqType == "variadic":
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adjust_container_limits_for_variadic_sequences(headerDir, containers, args.numElements)
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# Generate MPL-preprocessed files.
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os.chdir( sourceDir )
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if args.seqType == "both" or args.seqType == "numbered":
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if args.want_vector:
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if args.verbose:
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print "Pre-process headers for Boost.MPL numbered vectors."
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os.system( "python " + os.path.join( sourceDir, "preprocess_vector.py" ) + " all " + args.sourceDir )
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if args.want_list:
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if args.verbose:
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print "Pre-process headers for Boost.MPL numbered lists."
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os.system( "python " + os.path.join( sourceDir, "preprocess_list.py" ) + " all " + args.sourceDir )
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if args.want_set:
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if args.verbose:
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print "Pre-process headers for Boost.MPL numbered sets."
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os.system( "python " + os.path.join( sourceDir, "preprocess_set.py" ) + " all " + args.sourceDir )
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if args.want_map:
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if args.verbose:
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print "Pre-process headers for Boost.MPL numbered maps."
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os.system( "python " + os.path.join( sourceDir, "preprocess_map.py" ) + " all " + args.sourceDir )
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if args.seqType == "both" or args.seqType == "variadic":
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if args.verbose:
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print "Pre-process headers for Boost.MPL variadic containers."
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os.system( "python " + os.path.join( sourceDir, "preprocess.py" ) + " all " + args.sourceDir )
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if __name__ == '__main__':
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main()
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