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mirror of https://github.com/KanjiVG/kanjivg.git synced 2026-01-09 08:23:50 +01:00
Files
kanjivg/utils.py

76 lines
2.4 KiB
Python

import sys, os
PYTHON_VERSION_MAJOR = sys.version_info[0]
if PYTHON_VERSION_MAJOR < 3:
# In python 2, io.open does not support encoding parameter
from codecs import open
else:
from io import open
# In python 3, strings are used so unicode() is a pass-through
def unicode(s):
return s
def canonicalId(id):
if isinstance(id, str):
idLen = len(id)
if idLen == 1:
id = ord(id)
elif idLen >= 2 and idLen <= 5:
id = int(id, 16)
else:
raise ValueError("Character id must be a 1-character string with the character itself, or 2-5 hex digit unicode codepoint.")
if not isinstance(id, int):
raise ValueError("canonicalId: id must be int or str")
if id > 0xf and id <= 0xfffff:
return "%05x" % (id)
raise ValueError("Character id out of range")
class SvgFileInfo:
def __init__(self, file, dir):
self.path = os.path.join(dir, file)
if file[-4:].lower() != ".svg":
raise Exception("File should have .svg exension. (%s)" % (str(self.path)))
parts = (file[:-4]).split('-')
if len(parts) == 2:
self.variant = parts[1]
elif len(parts) != 1:
raise Exception("File should have at most 2 parts separated by a dash. (%s)" % (str(file)))
self.id = parts[0]
if self.id != canonicalId(self.id):
raise Exception("File name not in canonical format (%s)" % (str(self.path)))
def __repr__(self):
return repr(vars(self))
def read(self, SVGHandler=None):
if SVGHandler is None:
from kanjivg import SVGHandler
handler = SVGHandler()
parseXmlFile(self.path, handler)
parsed = list(handler.kanjis.values())
if len(parsed) != 1:
raise Exception("File does not contain 1 kanji entry. (%s)" % (self.path))
return parsed[0]
def parseXmlFile(path, handler):
from xml.sax import parse
parse(path, handler)
def listSvgFiles(dir):
return [
SvgFileInfo(f, dir)
for f in os.listdir(dir)
]
def readXmlFile(path, KanjisHandler=None):
if KanjisHandler is None:
from kanjivg import KanjisHandler
handler = KanjisHandler()
parseXmlFile(path, handler)
parsed = list(handler.kanjis.values())
if len(parsed) == 0:
raise Exception("File does not contain any kanji entries. (%s)" % (path))
return handler.kanjis