def __init__(self, fp):
self.fp = fp
self.offsets = []
(count, offsize) = struct.unpack(">HB", self.fp.read(3))
for i in range(count + 1):
self.offsets.append(nunpack(self.fp.read(offsize)))
self.base = self.fp.tell() - 1
self.fp.seek(self.base + self.offsets[-1])
return
def get_pos(self, objid):
offset = 0
found = False
for objid_range in self.objid_ranges:
if objid >= objid_range.get_start_id() and objid <= objid_range.get_end_id():
offset += objid - objid_range.get_start_id()
found = True
break
else:
offset += objid_range.get_nobjs()
if not found: raise KeyError(objid)
i = self.entlen * offset
ent = self.data[i:i+self.entlen]
f1 = nunpack(ent[:self.fl1], 1)
if f1 == 1:
pos = nunpack(ent[self.fl1:self.fl1+self.fl2])
genno = nunpack(ent[self.fl1+self.fl2:])
return (None, pos)
elif f1 == 2:
objid = nunpack(ent[self.fl1:self.fl1+self.fl2])
index = nunpack(ent[self.fl1+self.fl2:])
return (objid, index)
# this is a free object
raise KeyError(objid)
def do_keyword(self, pos, token):
name = token.name
if name == 'begincmap':
self._in_cmap = True
self.popall()
return
elif name == 'endcmap':
self._in_cmap = False
return
if not self._in_cmap: return
#
if name == 'def':
try:
((_,k),(_,v)) = self.pop(2)
self.cmap.set_attr(literal_name(k), v)
except PSSyntaxError:
pass
return
if name == 'usecmap':
try:
((_,cmapname),) = self.pop(1)
self.cmap.use_cmap(CMapDB.get_cmap(literal_name(cmapname)))
except PSSyntaxError:
pass
except CMapDB.CMapNotFound:
pass
return
if name == 'begincodespacerange':
self.popall()
return
if name == 'endcodespacerange':
self.popall()
return
if name == 'begincidrange':
self.popall()
return
if name == 'endcidrange':
objs = [ obj for (_,obj) in self.popall() ]
for (s,e,cid) in choplist(3, objs):
if (not isinstance(s, str) or not isinstance(e, str) or
not isinstance(cid, int) or len(s) != len(e)): continue
sprefix = s[:-4]
eprefix = e[:-4]
if sprefix != eprefix: continue
svar = s[-4:]
evar = e[-4:]
s1 = nunpack(svar)
e1 = nunpack(evar)
vlen = len(svar)
#assert s1 <= e1
for i in range(e1-s1+1):
x = sprefix+struct.pack('>L',s1+i)[-vlen:]
self.cmap.add_code2cid(x, cid+i)
return
if name == 'begincidchar':
self.popall()
return
if name == 'endcidchar':
objs = [ obj for (_,obj) in self.popall() ]
for (cid,code) in choplist(2, objs):
if isinstance(code, str) and isinstance(cid, str):
self.cmap.add_code2cid(code, nunpack(cid))
return
if name == 'beginbfrange':
self.popall()
return
if name == 'endbfrange':
objs = [ obj for (_,obj) in self.popall() ]
for (s,e,code) in choplist(3, objs):
if (not isinstance(s, str) or not isinstance(e, str) or
len(s) != len(e)): continue
s1 = nunpack(s)
e1 = nunpack(e)
#assert s1 <= e1
if isinstance(code, list):
for i in range(e1-s1+1):
self.cmap.add_cid2unichr(s1+i, code[i])
else:
var = code[-4:]
base = nunpack(var)
prefix = code[:-4]
vlen = len(var)
for i in range(e1-s1+1):
x = prefix+struct.pack('>L',base+i)[-vlen:]
self.cmap.add_cid2unichr(s1+i, x)
return
if name == 'beginbfchar':
self.popall()
return
if name == 'endbfchar':
objs = [ obj for (_,obj) in self.popall() ]
for (cid,code) in choplist(2, objs):
if isinstance(cid, str) and isinstance(code, str):
self.cmap.add_cid2unichr(nunpack(cid), code)
return
if name == 'beginnotdefrange':
self.popall()
return
if name == 'endnotdefrange':
self.popall()
return
self.push((pos, token))
return
