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#
# 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
-r, --recursive Recursively find and compile dependencies
-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.
--incref-local-binop Force local an extra incref on local variables before
performing any binary operations.
--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.
-X, --directive <name>=<value>[,<name=value,...] Overrides a compiler directive
"""
#The following experimental options are supported only on MacOSX:
# -C, --compile Compile generated .c file to .o file
# -X, --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 ("-X", "--link"):
options.c_only = 0
options.obj_only = 0
elif option in ("-+", "--cplus"):
options.cplus = 1
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 == "--incref-local-binop":
Options.incref_local_binop = 1
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.pragma_overrides = Options.parse_option_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()
return options, sources
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