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import sys,os,string,random | |
if len(sys.argv)==1: | |
print 'warn: encoding name missing' | |
print 'python %s <encoding name>'%(os.path.basename(__file__)) | |
sys.exit(0) | |
encoding=sys.argv[1] | |
charset={} | |
n=0xff+1#skip 0x00-0xFF | |
while n<0xfffd: | |
try: | |
u=unichr(n) | |
c=u.encode(encoding) | |
#output 2 bytes char, skip others | |
if len(c)==2: | |
charset[int(c.encode('hex'),16)]=n | |
else: | |
#print c.encode('hex') | |
pass | |
except UnicodeEncodeError: | |
pass | |
except LookupError as e: | |
print e.message | |
sys.exit(1) | |
except: | |
print 'Unexpected error:', sys.exc_info()[0] | |
raise | |
finally: | |
n+=1 | |
tableTmpl='''// auto generated mapping table, ${encoding} ==> unicode | |
var iconv=require('iconv-lite') | |
var encoding='${encoding}',_encoding=encoding.replace(/[- ]/g,'') | |
/** | |
* set aliase name for ${encoding} | |
* for big5, iconv.encoding['cp950']=_encoding | |
*/ | |
//iconv.encodings['aliase1']=_encoding | |
//iconv.encodings['aliase2']=_encoding | |
iconv.encodings[encoding]=_encoding | |
iconv.encodings[_encoding]={ | |
type:'table', | |
table:{ | |
''' | |
with open(encoding+'.js','wb') as f: | |
t=string.Template(tableTmpl) | |
f.write(t.substitute(encoding=encoding)) | |
for k in sorted(charset.keys()): | |
v=charset[k] | |
f.write(' 0x%04X:0x%04X,//%s\n'%(k,v,unichr(v).encode('utf8'))) | |
f.write(' }\n}') | |
print 'generated %s.js'%encoding | |
testTmpl=''' | |
var iconv=require('iconv-lite'), | |
assert=require('assert'); | |
require('./${encoding}.js'); | |
var testStr='${testStr}abc', | |
testBuf=new Buffer('${testStringHex}616263','hex'); | |
var resultBuf=iconv.encode(testStr,'${encoding}'), | |
resultStr=iconv.decode(testBuf,'${encoding}'); | |
assert.strictEqual(testStr,resultStr); | |
assert.strictEqual(testBuf.toString('hex'),resultBuf.toString('hex')); | |
console.log('test passed'); | |
''' | |
with open(encoding+'Test.js','wb') as f: | |
chars=random.sample(charset.keys(),5); | |
testStr=''.join([unichr(charset[c]) for c in chars]).encode('utf8') | |
testStringHex=''.join(['%X'%c for c in chars]) | |
t=string.Template(testTmpl) | |
f.write(t.substitute( | |
encoding=encoding,testStr=testStr,testStringHex=testStringHex)) | |
print 'generated %sTest.js'%encoding |
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