111 lines
3.1 KiB
Python
111 lines
3.1 KiB
Python
#!/usr/bin/env python3
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# Parse a Uni* CMap file and flatten it.
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#
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# The Uni* CMap files only have 'cidchar' and 'cidrange' sections, never
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# 'bfchar' or 'bfrange'.
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import sys
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def flattencmap(filename):
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codespacerange = []
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usecmap = ""
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cmapname = ""
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cmapversion = "1.0"
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csi_registry = "(Adobe)"
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csi_ordering = "(Unknown)"
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csi_supplement = 1
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wmode = 0
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map = {}
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def tocode(s):
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if s[0] == '<' and s[-1] == '>':
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return int(s[1:-1], 16)
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return int(s, 10)
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def map_cidchar(lo, v):
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map[lo] = v
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def map_cidrange(lo, hi, v):
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while lo <= hi:
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map[lo] = v
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lo = lo + 1
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v = v + 1
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current = None
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for line in open(filename, "r").readlines():
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if line[0] == '%':
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continue
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line = line.strip().split()
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if len(line) == 0:
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continue
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if line[0] == '/CMapVersion': cmapversion = line[1]
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elif line[0] == '/CMapName': cmapname = line[1][1:]
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elif line[0] == '/WMode': wmode = int(line[1])
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elif line[0] == '/Registry': csi_registry = line[1]
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elif line[0] == '/Ordering': csi_ordering = line[1]
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elif line[0] == '/Supplement': csi_supplement = line[1]
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elif len(line) > 1 and line[1] == 'usecmap': usecmap = line[0][1:]
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elif len(line) > 1 and line[1] == 'begincodespacerange': current = 'codespacerange'
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elif len(line) > 1 and line[1] == 'begincidrange': current = 'cidrange'
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elif len(line) > 1 and line[1] == 'begincidchar': current = 'cidchar'
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elif line[0].startswith("end"):
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current = None
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elif current == 'codespacerange' and len(line) == 2:
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n, a, b = (len(line[0])-2)/2, tocode(line[0]), tocode(line[1])
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codespacerange.append((n, a, b))
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elif current == 'cidrange' and len(line) == 3:
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a, b, c = tocode(line[0]), tocode(line[1]), tocode(line[2])
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map_cidrange(a, b, c)
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elif current == 'cidchar' and len(line) == 2:
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a, b = tocode(line[0]), tocode(line[1])
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map_cidchar(a, b)
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# Print flattened CMap file
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print("%!PS-Adobe-3.0 Resource-CMap")
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print("%%DocumentNeededResources: procset (CIDInit)")
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print("%%IncludeResource: procset (CIDInit)")
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print("%%%%BeginResource: CMap (%s)" % cmapname)
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print("%%%%Version: %s" % cmapversion)
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print("%%EndComments")
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print("/CIDInit /ProcSet findresource begin")
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print("12 dict begin")
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print("begincmap")
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if usecmap: print("/%s usecmap" % usecmap)
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print("/CIDSystemInfo 3 dict dup begin")
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print(" /Registry %s def" % csi_registry)
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print(" /Ordering %s def" % csi_ordering)
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print(" /Supplement %s def" % csi_supplement)
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print("end def")
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print("/CMapName /%s def" % cmapname)
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print("/CMapVersion %s def" % cmapversion)
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print("/CMapType 1 def")
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print("/WMode %d def" % wmode)
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if len(codespacerange):
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print("%d begincodespacerange" % len(codespacerange))
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for r in codespacerange:
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fmt = "<%%0%dx> <%%0%dx>" % (r[0]*2, r[0]*2)
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print(fmt % (r[1], r[2]))
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print("endcodespacerange")
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keys = list(map.keys())
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keys.sort()
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print("%d begincidchar" % len(keys))
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for code in keys:
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v = map[code]
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print("<%04x> %d" % (code, v))
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print("endcidchar")
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print("endcmap")
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print("CMapName currentdict /CMap defineresource pop")
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print("end")
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print("end")
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print("%%EndResource")
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print("%%EOF")
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for arg in sys.argv[1:]:
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flattencmap(arg)
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