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#!/usr/bin/env python
#
# Copyright Capita Translation and Interpreting 2013
#
# This file is part of Pipeline Creation Language (PCL).
#
# Pipeline Creation Language (PCL) is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Pipeline Creation Language (PCL) is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Pipeline Creation Language (PCL). If not, see <http://www.gnu.org/licenses/>.
#
import os
import sys
import traceback
from optparse import OptionParser
from parser.helpers import parse_component
from parser.resolver import Resolver
from visitors.executor_visitor import ExecutorVisitor
__VERSION = "1.1.5"
if __name__ == '__main__':
# The option parser
parser = OptionParser("Usage: %prog [options] [PCL file]")
parser.add_option("-l",
"--loglevel",
default = "WARN",
dest = "loglevel",
help = "parser log file reporting level [default: %default]")
parser.add_option("-i",
"--instrument",
action = "store_true",
default = False,
dest = "is_instrumented",
help = "Generated code shall instrument components")
parser.add_option("-v",
"--version",
action = "store_true",
default = False,
dest = "version",
help = "show version and exit")
(options, args) = parser.parse_args()
# Show version?
if options.version is True:
print __VERSION
sys.exit(0)
# Check we've got at least one command line argument
if len(args) < 1:
print "ERROR: no input file"
sys.exit(2)
# Add the PCL extension is one is missing
basename = os.path.basename(args[0])
basename_bits = basename.split(".")
if len(basename_bits) == 1:
# Add the PCL extension on
basename_bits.append("pcl")
# PCL file name
pcl_filename = os.path.join(os.path.dirname(args[0]), ".".join(basename_bits))
if os.path.isfile(pcl_filename) is False:
print "ERROR: Cannot find file %s" % pcl_filename
sys.exit(1)
# Parse...
ast = parse_component(pcl_filename, options.loglevel)
if not ast:
sys.exit(1)
# Resolve...
resolver = Resolver(os.getenv("PCL_IMPORT_PATH", "."))
resolver.resolve(ast)
for warning in resolver.get_warnings():
print warning
if resolver.has_errors():
for error in resolver.get_errors():
print error
sys.exit(1)
# Execute.
executor = ExecutorVisitor(basename_bits[0], options.is_instrumented)
try:
ast.accept(executor)
except Exception as ex:
print traceback.format_exc()
print "ERROR: Code generation failed: %s" % ex
sys.exit(1)
sys.exit(0)
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