def generate_pyasn_code(definition):
parse_tree = parse_asn1(definition)
modules = build_semantic_model(parse_tree)
output = StringIO()
for module in modules:
generate_pyasn1(module, output)
return output.getvalue()
def main():
arg_parser = argparse.ArgumentParser(description='Generate Python classes from an ASN.1 definition file. Output to stdout by default.')
arg_parser.add_argument('file', metavar='file', type=argparse.FileType('r'),
help='the ASN.1 file to process')
arg_parser.add_argument('--split', action='store_true',
help='output multiple modules to separate files')
args = arg_parser.parse_args()
asn1def = args.file.read()
parse_tree = parser.parse_asn1(asn1def)
modules = build_semantic_model(parse_tree)
if len(modules) > 1 and not args.split:
print('WARNING: More than one module generated to the same stream.', file=sys.stderr)
output_file = sys.stdout
for module in modules:
try:
if args.split:
output_file = open(_sanitize_module(module.name) + '.py', 'w')
print(pygen.auto_generated_header(), file=output_file)
generate_pyasn1(module, output_file, modules)
finally:
if output_file != sys.stdout:
output_file.close()
return 0
def main():
args = parse_args()
with open(args.file) as f:
asn1def = f.read()
if args.outdir and (args.parse or args.sema):
print('ERROR: can only use --outdir with --gen')
return 1
parse_tree = parser.parse_asn1(asn1def)
if args.parse:
parser.print_parse_tree(parse_tree)
return 0
modules = sema.build_semantic_model(parse_tree)
if args.sema:
for module in modules:
print(module)
return 0
if args.gen:
for module in modules:
generate_module_code(args, module, modules)
return 0
def go (args):
with open (args.file) as f:
asn1def = f.read()
parse_tree = parser.parse_asn1(asn1def)
modules = build_semantic_model(parse_tree)
assert (len(modules) == 1)
base, ext = os.path.splitext (args.file)
parts = os.path.split (base)
module_name = parts[-1]
if args.outdir:
path = args.outdir
else:
path = "."
if args.lang == 'python':
from tinyber.py_nodes import PythonBackend as Backend
from tinyber import py_nodes as nodes
elif args.lang == 'c':
from tinyber.c_nodes import CBackend as Backend
from tinyber import c_nodes as nodes
# pull in the python-specific node implementations
walker = Walker (modules[0], nodes)
walker.walk()
backend = Backend (args, walker, module_name, path)
backend.generate_code()
def main():
arg_parser = argparse.ArgumentParser(
description='Generate Python classes from an ASN.1 definition file.'
'Output to stdout by default.')
arg_parser.add_argument('file', help='the ASN.1 file to process')
arg_parser.add_argument('--split',
action='store_true',
help='output multiple modules to separate files')
args = arg_parser.parse_args()
with open(args.file, 'r') as data:
asn1def = data.read()
parse_tree = parser.parse_asn1(asn1def)
modules = build_semantic_model(parse_tree)
if len(modules) > 1 and not args.split:
print('WARNING: More than one module generated to the same stream.',
file=sys.stderr)
output_file = sys.stdout
for module in modules:
try:
if args.split:
output_file = open(_sanitize_module(module.name) + '.py', 'w')
print(pygen.auto_generated_header(args.file, __version__),
file=output_file)
generate_pyasn1(module, output_file, modules)
finally:
if output_file != sys.stdout:
output_file.close()
return 0
def main(args):
with open(args.file, 'r') as data:
asn1def = data.read()
parse_tree = parser.parse_asn1(asn1def)
modules = build_semantic_model(parse_tree)
if len(modules) > 1 and not args.split:
print('WARNING: More than one module generated to the same stream.',
file=sys.stderr)
header = pygen.auto_generated_header(args.file, __version__)
if not args.split:
# Print header once and then reset so we don't emit it for every module
print(header, file=sys.stdout)
header = None
for module in modules:
if args.split:
outfile = _sanitize_module(module.name) + '.py'
else:
outfile = '-'
with _maybe_open(outfile) as output_file:
generate_pyasn1(module, output_file, modules, header=header)
return 0
def go(args):
with open(args.file) as f:
asn1def = f.read()
parse_tree = parser.parse_asn1(asn1def)
modules = build_semantic_model(parse_tree)
assert (len(modules) == 1)
base, ext = os.path.splitext(args.file)
parts = os.path.split(base)
module_name = parts[-1]
if args.outdir:
path = args.outdir
else:
path = "."
if args.lang == 'python':
from tinyber.py_nodes import PythonBackend as Backend
from tinyber import py_nodes as nodes
elif args.lang == 'c':
from tinyber.c_nodes import CBackend as Backend
from tinyber import c_nodes as nodes
# pull in the python-specific node implementations
walker = Walker(modules[0], nodes)
walker.walk()
backend = Backend(args, walker, module_name, path)
backend.generate_code()
def main(args):
with open(args[0]) as f:
asn1def = f.read()
parse_tree = parser.parse_asn1(asn1def)
modules = build_semantic_model(parse_tree)
if len(modules) > 1:
print('WARNING: More than one module generated to the same stream.', file=sys.stderr)
for module in modules:
print(pygen.auto_generated_header())
generate_pyasn1(module, sys.stdout)
return 0
def main(args):
with open(args[0]) as f:
asn1def = f.read()
parse_tree = parser.parse_asn1(asn1def)
modules = build_semantic_model(parse_tree)
if len(modules) > 1:
print('WARNING: More than one module generated to the same stream.',
file=sys.stderr)
for module in modules:
print(pygen.auto_generated_header())
generate_pyasn1(module, sys.stdout)
return 0
def generate(infilename, outfilename):
class FakeArgs(object):
no_standalone = False
import os
with open(infilename) as f:
asn1def = f.read()
parse_tree = parser.parse_asn1(asn1def)
modules = build_semantic_model(parse_tree)
assert (len(modules) == 1)
module_name = outfilename
path = "."
args = FakeArgs()
# pull in the python-specific node implementations
walker = Walker(modules[0], nodes)
walker.walk()
backend = CBackend(args, walker, module_name, path)
backend.generate_code()
def generate(infilename, outfilename):
class FakeArgs(object):
no_standalone = False
import os
with open(infilename) as f:
asn1def = f.read()
parse_tree = parser.parse_asn1(asn1def)
modules = build_semantic_model(parse_tree)
assert (len(modules) == 1)
module_name = outfilename
path = "."
args = FakeArgs()
# pull in the python-specific node implementations
walker = Walker(modules[0], nodes)
walker.walk()
backend = CBackend(args, walker, module_name, path)
backend.generate_code()
def main():
args = parse_args()
with open(args.file) as f:
asn1def = f.read()
parse_tree = parser.parse_asn1(asn1def)
if args.parse:
parser.print_parse_tree(parse_tree)
return 0
modules = sema.build_semantic_model(parse_tree)
if args.sema:
for module in modules:
print(module)
return 0
if args.gen:
for module in modules:
print(pygen.auto_generated_header(args.file, __version__))
pyasn1gen.generate_pyasn1(module, sys.stdout, modules)
return 0
def main():
args = parse_args()
with open(args.file) as f:
asn1def = f.read()
parse_tree = parser.parse_asn1(asn1def)
if args.parse:
parser.print_parse_tree(parse_tree)
return 0
modules = sema.build_semantic_model(parse_tree)
if args.sema:
for module in modules:
print(module)
return 0
if args.gen:
for module in modules:
print(pygen.auto_generated_header(args.file, __version__))
pyasn1gen.generate_pyasn1(module, sys.stdout, modules)
return 0
def main(args):
with open(args.file, 'r') as data:
asn1def = data.read()
parse_tree = parser.parse_asn1(asn1def)
modules = build_semantic_model(parse_tree)
if len(modules) > 1 and not args.split:
print('WARNING: More than one module generated to the same stream.', file=sys.stderr)
header = pygen.auto_generated_header(args.file, __version__)
if args.include_asn1:
header += 'ASN1_SOURCES = {}'
header += os.linesep
if not args.split:
# Print header once and then reset so we don't emit it for every module
print(header, file=sys.stdout)
header = None
for module in modules:
if args.split:
outfile = _sanitize_module(module.name) + '.py'
else:
outfile = '-'
if args.include_asn1:
footer = 'ASN1_SOURCES[%r] = %s' % (module.name,
pygen.format_longstring(str(module)))
footer += os.linesep
else:
footer = None
with _maybe_open(outfile) as output_file:
generate_pyasn1(module, output_file, modules, header=header, footer=footer)
return 0
def main():
args = parse_args()
with open(args.file) as f:
asn1def = f.read()
if args.outdir and not args.gen:
print('ERROR: can only use --outdir with --gen', file=sys.stderr)
return 1
parse_tree = parser.parse_asn1(asn1def)
if args.parse:
parser.print_parse_tree(parse_tree)
return 0
modules = sema.build_semantic_model(parse_tree)
if args.sema:
for module in modules:
print(module)
return 0
if args.gen:
generate_module_code(args)
return 0
"""The main program asn2quickder is called with one or more .asn1 files,
the first of which is mapped to a C header file and the rest is
loaded to fulfil dependencies.
"""
if len(sys.argv) < 2:
sys.stderr.write('Usage: %s main[.asn1] dependency[.asn1]...\n' %
sys.argv[0])
sys.exit(1)
mods = []
for file in sys.argv[1:]:
print('Parsing', file)
with open(file, 'r') as asn1fh:
asn1txt = asn1fh.read()
asn1tree = parser.parse_asn1(asn1txt)
print('Building semantic model for', file)
asn1sem = build_semantic_model(asn1tree)
mods.insert(0, asn1sem[0])
print('Realised semantic model for', file)
cogen = QuickDERgen(mods[-1], os.path.basename(sys.argv[1]), mods[1:])
cogen.generate_head()
cogen.generate_overlay()
cogen.generate_pack()
cogen.generate_tail()
cogen.close()
"""The main program asn2quickder is called with one or more .asn1 files,
the first of which is mapped to a C header file and the rest is
loaded to fulfil dependencies.
"""
if len(sys.argv) < 2:
sys.stderr.write('Usage: %s main[.asn1] dependency[.asn1]...\n'
% sys.argv [0])
sys.exit(1)
mods = []
for file in sys.argv [1:]:
print('Parsing', file)
with open(file, 'r') as asn1fh:
asn1txt = asn1fh.read()
asn1tree = parser.parse_asn1(asn1txt)
print('Building semantic model for', file)
asn1sem = build_semantic_model(asn1tree)
mods.insert(0, asn1sem [0])
print('Realised semantic model for', file)
cogen = QuickDERgen(mods [-1], os.path.basename(sys.argv [1]), mods [1:])
cogen.generate_head()
cogen.generate_overlay()
cogen.generate_pack()
cogen.generate_tail()
cogen.close()
