Moved gencodec.py to the Tools/unicode/ directory.

Added new support for decoding tables.

Cleaned up the implementation a bit.

1 files changed, 0 insertions, 300 deletions

diff --git a/Tools/scripts/gencodec.py b/Tools/scripts/gencodec.py
deleted file mode 100644
index 75337d6..0000000
--- a/Tools/scripts/gencodec.py
+++ /dev/null
@@ -1,300 +0,0 @@
-""" Unicode Mapping Parser and Codec Generator.
-
-This script parses Unicode mapping files as available from the Unicode
-site (ftp://ftp.unicode.org/Public/MAPPINGS/) and creates Python codec
-modules from them. The codecs use the standard character mapping codec
-to actually apply the mapping.
-
-Synopsis: gencodec.py dir codec_prefix
-
-All files in dir are scanned and those producing non-empty mappings
-will be written to <codec_prefix><mapname>.py with <mapname> being the
-first part of the map's filename ('a' in a.b.c.txt) converted to
-lowercase with hyphens replaced by underscores.
-
-The tool also writes marshalled versions of the mapping tables to the
-same location (with .mapping extension).
-
-Written by Marc-Andre Lemburg (mal@lemburg.com).
-
-(c) Copyright CNRI, All Rights Reserved. NO WARRANTY.
-(c) Copyright Guido van Rossum, 2000.
-
-"""#"
-
-import re,os,time,marshal
-
-# Create numeric tables or character based ones ?
-numeric = 1
-
-mapRE = re.compile('((?:0x[0-9a-fA-F]+\+?)+)'
-                   '\s+'
-                   '((?:(?:0x[0-9a-fA-Z]+|<[A-Za-z]+>)\+?)*)'
-                   '\s*'
-                   '(#.+)?')
-
-def parsecodes(codes,
-               len=len, filter=filter,range=range):
-
-    """ Converts code combinations to either a single code integer
-        or a tuple of integers.
-
-        meta-codes (in angular brackets, e.g. <LR> and <RL>) are
-        ignored.
-
-        Empty codes or illegal ones are returned as None.
-
-    """
-    if not codes:
-        return None
-    l = codes.split('+')
-    if len(l) == 1:
-        return int(l[0],16)
-    for i in range(len(l)):
-        try:
-            l[i] = int(l[i],16)
-        except ValueError:
-            l[i] = None
-    l = filter(lambda x: x is not None, l)
-    if len(l) == 1:
-        return l[0]
-    else:
-        return tuple(l)
-
-def readmap(filename):
-
-    f = open(filename,'r')
-    lines = f.readlines()
-    f.close()
-    enc2uni = {}
-    identity = []
-    unmapped = range(256)
-    for i in range(256):
-        unmapped[i] = i
-    for line in lines:
-        line = line.strip()
-        if not line or line[0] == '#':
-            continue
-        m = mapRE.match(line)
-        if not m:
-            #print '* not matched: %s' % repr(line)
-            continue
-        enc,uni,comment = m.groups()
-        enc = parsecodes(enc)
-        uni = parsecodes(uni)
-        if not comment:
-            comment = ''
-        else:
-            comment = comment[1:]
-        if enc < 256:
-            unmapped.remove(enc)
-            if enc == uni:
-                identity.append(enc)
-            else:
-                enc2uni[enc] = (uni,comment)
-        else:
-            enc2uni[enc] = (uni,comment)
-    # If there are more identity-mapped entries than unmapped entries,
-    # it pays to generate an identity dictionary first, and add explicit
-    # mappings to None for the rest
-    if len(identity)>=len(unmapped):
-        for enc in unmapped:
-            enc2uni[enc] = (None, "")
-        enc2uni['IDENTITY'] = 256
-
-    return enc2uni
-
-def hexrepr(t):
-
-    if t is None:
-        return 'None'
-    try:
-        len(t)
-    except:
-        return '0x%04x' % t
-    return '(' + ', '.join(map(lambda t: '0x%04x' % t, t)) + ')'
-
-def unicoderepr(t):
-
-    if t is None:
-        return 'None'
-    if numeric:
-        return hexrepr(t)
-    else:
-        try:
-            len(t)
-        except:
-            return repr(unichr(t))
-        return repr(''.join(map(unichr, t)))
-
-def keyrepr(t):
-
-    if t is None:
-        return 'None'
-    if numeric:
-        return hexrepr(t)
-    else:
-        try:
-            len(t)
-        except:
-            if t < 256:
-                return repr(chr(t))
-            else:
-                return repr(unichr(t))
-        return repr(''.join(map(chr, t)))
-
-def codegen(name,map,comments=1):
-
-    """ Returns Python source for the given map.
-
-        Comments are included in the source, if comments is true (default).
-
-    """
-    l = [
-        '''\
-""" Python Character Mapping Codec generated from '%s' with gencodec.py.
-
-"""#"
-
-import codecs
-
-### Codec APIs
-
-class Codec(codecs.Codec):
-
-    def encode(self,input,errors='strict'):
-
-        return codecs.charmap_encode(input,errors,encoding_map)
-
-    def decode(self,input,errors='strict'):
-
-        return codecs.charmap_decode(input,errors,decoding_map)
-
-class StreamWriter(Codec,codecs.StreamWriter):
-    pass
-
-class StreamReader(Codec,codecs.StreamReader):
-    pass
-
-### encodings module API
-
-def getregentry():
-
-    return (Codec().encode,Codec().decode,StreamReader,StreamWriter)
-
-### Decoding Map
-''' % name,
-        ]
-
-    if map.has_key("IDENTITY"):
-        l.append("decoding_map = codecs.make_identity_dict(range(%d))"
-                 % map["IDENTITY"])
-        l.append("decoding_map.update({")
-        splits = 1
-        del map["IDENTITY"]
-    else:
-        l.append("decoding_map = {")
-        splits = 0
-
-    mappings = map.items()
-    mappings.sort()
-    append = l.append
-    i = 0
-    for e,value in mappings:
-        try:
-            (u,c) = value
-        except TypeError:
-            u = value
-            c = ''
-        key = keyrepr(e)
-        if c and comments:
-            append('\t%s: %s,\t# %s' % (key,unicoderepr(u),c))
-        else:
-            append('\t%s: %s,' % (key,unicoderepr(u)))
-        i += 1
-        if i == 4096:
-            # Split the definition into parts to that the Python
-            # parser doesn't dump core
-            if splits == 0:
-                append('}')
-            else:
-                append('})')
-            append('decoding_map.update({')
-            i = 0
-            splits = splits + 1
-    if splits == 0:
-        append('}')
-    else:
-        append('})')
-    append('''
-### Encoding Map
-
-encoding_map = codecs.make_encoding_map(decoding_map)
-''')
-    return '\n'.join(l)
-
-def pymap(name,map,pyfile,comments=1):
-
-    code = codegen(name,map,comments)
-    f = open(pyfile,'w')
-    f.write(code)
-    f.close()
-
-def marshalmap(name,map,marshalfile):
-
-    d = {}
-    for e,(u,c) in map.items():
-        d[e] = (u,c)
-    f = open(marshalfile,'wb')
-    marshal.dump(d,f)
-    f.close()
-
-def convertdir(dir,prefix='',comments=1):
-
-    mapnames = os.listdir(dir)
-    for mapname in mapnames:
-        name = os.path.split(mapname)[1]
-        name = name.replace('-','_')
-        name = name.split('.')[0]
-        name = name.lower()
-        codefile = name + '.py'
-        marshalfile = name + '.mapping'
-        print 'converting %s to %s and %s' % (mapname,
-                                              prefix + codefile,
-                                              prefix + marshalfile)
-        try:
-            map = readmap(os.path.join(dir,mapname))
-            if not map:
-                print '* map is empty; skipping'
-            else:
-                pymap(mapname, map, prefix + codefile,comments)
-                marshalmap(mapname, map, prefix + marshalfile)
-        except ValueError:
-            print '* conversion failed'
-
-def rewritepythondir(dir,prefix='',comments=1):
-
-    mapnames = os.listdir(dir)
-    for mapname in mapnames:
-        if not mapname.endswith('.mapping'):
-            continue
-        codefile = mapname[:-len('.mapping')] + '.py'
-        print 'converting %s to %s' % (mapname,
-                                       prefix + codefile)
-        try:
-            map = marshal.load(open(os.path.join(dir,mapname),
-                               'rb'))
-            if not map:
-                print '* map is empty; skipping'
-            else:
-                pymap(mapname, map, prefix + codefile,comments)
-        except ValueError, why:
-            print '* conversion failed: %s' % why
-
-if __name__ == '__main__':
-
-    import sys
-    if 1:
-        apply(convertdir,tuple(sys.argv[1:]))
-    else:
-        apply(rewritepythondir,tuple(sys.argv[1:]))