# # Cython - Command Line Parsing # import sys import Options usage = """\ Cython (http://cython.org) is a compiler for code written in the Cython language. Cython is based on Pyrex by Greg Ewing. Usage: cython [options] sourcefile.pyx ... Options: -V, --version Display version number of cython compiler -l, --create-listing Write error messages to a listing file -I, --include-dir <directory> Search for include files in named directory (multiply include directories are allowed). -o, --output-file <filename> Specify name of generated C file -t, --timestamps Only compile newer source files (implied with -r) -f, --force Compile all source files (overrides implied -t) -q, --quiet Don't print module names in recursive mode -v, --verbose Be verbose, print file names on multiple compilation -p, --embed-positions If specified, the positions in Cython files of each function definition is embedded in its docstring. -z, --pre-import <module> If specified, assume undeclared names in this module. Emulates the behavior of putting "from <module> import *" at the top of the file. --cleanup <level> Release interned objects on python exit, for memory debugging. Level indicates aggressiveness, default 0 releases nothing. -w, --working <directory> Sets the working directory for Cython (the directory modules are searched from) -D, --no-docstrings Remove docstrings. -a, --annotate Produce a colorized HTML version of the source. --line-directives Produce #line directives pointing to the .pyx source --cplus Output a c++ rather than c file. --embed Embed the Python interpreter in a main() method. -X, --directive <name>=<value>[,<name=value,...] Overrides a compiler directive """ # The following is broken http://trac.cython.org/cython_trac/ticket/379 # -r, --recursive Recursively find and compile dependencies #The following experimental options are supported only on MacOSX: # -C, --compile Compile generated .c file to .o file # --link Link .o file to produce extension module (implies -C) # -+, --cplus Use C++ compiler for compiling and linking # Additional .o files to link may be supplied when using -X.""" def bad_usage(): sys.stderr.write(usage) sys.exit(1) def parse_command_line(args): from Cython.Compiler.Main import \ CompilationOptions, default_options def pop_arg(): if args: return args.pop(0) else: bad_usage() def get_param(option): tail = option[2:] if tail: return tail else: return pop_arg() options = CompilationOptions(default_options) sources = [] while args: if args[0].startswith("-"): option = pop_arg() if option in ("-V", "--version"): options.show_version = 1 elif option in ("-l", "--create-listing"): options.use_listing_file = 1 elif option in ("-C", "--compile"): options.c_only = 0 elif option in ("--link"): options.c_only = 0 options.obj_only = 0 elif option in ("-+", "--cplus"): options.cplus = 1 elif option == "--embed": Options.embed = True elif option.startswith("-I"): options.include_path.append(get_param(option)) elif option == "--include-dir": options.include_path.append(pop_arg()) elif option in ("-w", "--working"): options.working_path = pop_arg() elif option in ("-o", "--output-file"): options.output_file = pop_arg() elif option in ("-r", "--recursive"): options.recursive = 1 elif option in ("-t", "--timestamps"): options.timestamps = 1 elif option in ("-f", "--force"): options.timestamps = 0 elif option in ("-v", "--verbose"): options.verbose += 1 elif option in ("-p", "--embed-positions"): Options.embed_pos_in_docstring = 1 elif option in ("-z", "--pre-import"): Options.pre_import = pop_arg() elif option == "--cleanup": Options.generate_cleanup_code = int(pop_arg()) elif option in ("-D", "--no-docstrings"): Options.docstrings = False elif option in ("-a", "--annotate"): Options.annotate = True elif option == "--convert-range": Options.convert_range = True elif option == "--line-directives": options.emit_linenums = True elif option in ("-X", "--directive"): try: options.compiler_directives = Options.parse_directive_list(pop_arg()) except ValueError, e: sys.stderr.write("Error in compiler directive: %s\n" % e.message) sys.exit(1) else: bad_usage() else: arg = pop_arg() if arg.endswith(".pyx"): sources.append(arg) elif arg.endswith(".py"): # maybe do some other stuff, but this should work for now sources.append(arg) elif arg.endswith(".o"): options.objects.append(arg) else: sys.stderr.write( "cython: %s: Unknown filename suffix\n" % arg) if options.objects and len(sources) > 1: sys.stderr.write( "cython: Only one source file allowed together with .o files\n") if options.use_listing_file and len(sources) > 1: sys.stderr.write( "cython: Only one source file allowed when using -o\n") sys.exit(1) if len(sources) == 0 and not options.show_version: bad_usage() if Options.embed and len(sources) > 1: sys.stderr.write( "cython: Only one source file allowed when using -embed\n") sys.exit(1) return options, sources