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#!/usr/bin/env python
# -*- coding: utf-8 -*-
from argparse import PARSER
# Copyright 2015 Garret Fick <garret@ficksworkshop.com>
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Excellon Settings Definition File module
====================
**Excellon file classes**
This module provides Excellon file classes and parsing utilities
"""
import re
try:
from cStringIO import StringIO
except(ImportError):
from io import StringIO
from .cam import FileSettings
def loads(data):
""" Read settings file information and return an FileSettings
Parameters
----------
data : string
string containing Excellon settings file contents
Returns
-------
file settings: FileSettings
"""
return ExcellonSettingsParser().parse_raw(data)
def map_coordinates(value):
if value == 'ABSOLUTE':
return 'absolute'
return 'relative'
def map_units(value):
if value == 'ENGLISH':
return 'inch'
return 'metric'
def map_boolean(value):
return value == 'YES'
SETTINGS_KEYS = {
'INTEGER-PLACES': (int, 'format-int'),
'DECIMAL-PLACES': (int, 'format-dec'),
'COORDINATES': (map_coordinates, 'notation'),
'OUTPUT-UNITS': (map_units, 'units'),
}
class ExcellonSettingsParser(object):
"""Excellon Settings PARSER
Parameters
----------
None
"""
def __init__(self):
self.values = {}
self.settings = None
def parse_raw(self, data):
for line in StringIO(data):
self._parse(line.strip())
# Create the FileSettings object
self.settings = FileSettings(
notation=self.values['notation'],
units=self.values['units'],
format=(self.values['format-int'], self.values['format-dec'])
)
return self.settings
def _parse(self, line):
line_items = line.split()
if len(line_items) == 2:
item_type_info = SETTINGS_KEYS.get(line_items[0])
if item_type_info:
# Convert the value to the expected type
item_value = item_type_info[0](line_items[1])
self.values[item_type_info[1]] = item_value
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