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#!/usr/bin/env python3
###########################################################################
#
# xasyFile implements the loading, parsing, and saving of an xasy file.
#
#
# Author: Orest Shardt
# Created: June 29, 2007
#
############################################################################
from string import *
import xasy2asy as x2a
import io
import re
class xasyParseError(Exception):
"""A parsing error"""
pass
class xasyFileError(Exception):
"""An i/o error or other error not related to parsing"""
pass
def extractTransform(line):
"""Returns key and the new transform."""
# see https://regex101.com/r/6DqkRJ/4 for info
mapString = x2a.xasyItem.mapString
testMatch = re.match(
r'^{0:s}\s*\(\s*\"([^\"]+)\"\s*,\s*\(([-\d, .]+)\)\s*\)'.format(mapString), line.strip())
if testMatch is None:
mapOnlyMatch = re.match(r'^{0:s}\s*\(\s *\"([^\"]+)\"\s*\)'.format(mapString), line.strip())
if mapOnlyMatch is None:
return None
else:
key = mapOnlyMatch.group(1)
return key, x2a.identity()
else:
key = testMatch.group(1)
rawStr = testMatch.group(2)
rawStrArray = rawStr.split(',')
if len(rawStrArray) != 6:
return None
transf = [float(val.strip()) for val in rawStrArray]
return key, x2a.asyTransform(transf)
def extractTransformsFromFile(fileStr):
transfDict = {}
maxItemCount = 0
with io.StringIO() as rawCode:
for line in fileStr.splitlines():
test_transf = extractTransform(line.rstrip())
if test_transf is None:
rawCode.write(line + '\n')
else:
key, transf = test_transf
if key not in transfDict.keys():
transfDict[key] = []
transfDict[key].append(transf)
# see https://regex101.com/r/RgeBVc/2 for regex
testNum = re.match(r'^x(\d+)($|:.*$)', key)
if testNum is not None:
maxItemCount = max(maxItemCount, int(testNum.group(1)))
final_str = rawCode.getvalue()
return final_str, transfDict, maxItemCount
def saveFile(file, xasyItems, asy2psmap):
"""Write a list of xasyItems to a file"""
for item in xasyItems:
file.write(item.getTransformCode(asy2psmap))
for item in xasyItems:
file.write(item.getObjectCode(asy2psmap))
file.write('size('+str(asy2psmap*x2a.yflip())+'); '+ x2a.xasyItem.resizeComment+'\n')
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