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visualize.py
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#!/usr/bin/python
import json
import sys
import unicodedata
directory = ""
if len(sys.argv) == 2:
directory = sys.argv[1]
indexes = json.load(open("indexes.json", "r"))
names_lengths_langs = [
("ibm866", 16, "ru"),
("iso-8859-2", 16, "pl"),
("iso-8859-3", 16, "tr"),
("iso-8859-4", 16, "et"),
("iso-8859-5", 16, "ru"),
("iso-8859-6", 16, "ar"),
("iso-8859-7", 16, "el"),
("iso-8859-8", 16, "he"),
("iso-8859-10", 16, "no"),
("iso-8859-13", 16, "et"),
("iso-8859-14", 16, "ga"),
("iso-8859-15", 16, "de"),
("iso-8859-16", 16, "pl"),
("koi8-r", 16, "ru"),
("koi8-u", 16, "uk"),
("macintosh", 16, "de"),
("windows-874", 16, "th"),
("windows-1250", 16, "pl"),
("windows-1251", 16, "ru"),
("windows-1252", 16, "de"),
("windows-1253", 16, "el"),
("windows-1254", 16, "tr"),
("windows-1255", 16, "he"),
("windows-1256", 16, "ar"),
("windows-1257", 16, "et"),
("windows-1258", 16, "vi"),
("x-mac-cyrillic", 16, "ru"),
("jis0208", 94, "ja"),
("jis0212", 94, "ja"),
("euc-kr", 190, "ko"),
("gb18030", 190, "zh-cn"),
("big5", 157, "zh-tw"),
]
# Lead offset one, lead offset two,
# trail offset one, trail offset two,
byte_rules = {
"jis0208": (0xA1, None, 0xA1, None),
"jis0212": (0xA1, None, 0xA1, None),
"shift_jis": (0x81, 0xC1, 0x40, 0x41),
"euc-kr": (0x81, None, 0x41, None),
"gb18030": (0x81, None, 0x40, 0x41),
"big5": (0x81, None, 0x40, 0x62),
}
big5_prefer_last = [
0x2550,
0x255E,
0x2561,
0x256A,
0x5341,
0x5345,
]
def classify(code_point):
if code_point < 0x80:
raise Error()
if code_point < 0x800:
return "mid"
if code_point > 0xFFFF:
return "astral"
if code_point >= 0xE000 and code_point <= 0xF8FF:
return "pua"
return "upper"
def check_compatibility(code_point):
if code_point >= 0xF900 and code_point <= 0xFAFF:
return " compatibility"
if code_point >= 0x3400 and code_point <= 0x4DB5:
return " ext"
return ""
def aria(code_point, contiguous, duplicate):
label = None
classification = classify(code_point)
if classification == "mid":
label = "Two bytes"
elif classification == "upper":
label = "Three bytes"
elif classification == "pua":
label = "Three bytes, Private Use"
elif classification == "astral":
label = "Four bytes"
block = check_compatibility(code_point)
if block == " compatibility":
label += ", Compatibility Ideograph"
elif block == " ext":
label += "Ideograph Extension A"
elif code_point >= 0x4E00 and code_point <= 0x9FD5:
label += ", Unified Ideograph"
elif code_point >= 0xAC00 and code_point <= 0xD7AF:
label += ", Hangul"
if contiguous:
label += ", contiguous"
if duplicate:
label += ", duplicate"
return label
def format_code_point(code_point):
if code_point >= 0x80 and code_point < 0xA0:
# HTML prohibits C1 controls
# TODO draw some fancy SVG hex inside the square
return "<svg width=16 height=16><rect x=1 y=1 width=14 height=14 stroke=black stroke-width=2 fill=none /></svg>"
# Big5's Plane 2 stuff is non-combining, so let's deal with it first,
# since it need special treatment in narrow Python.
if code_point > 0xFFFF:
return chr(code_point)
as_str = chr(code_point)
if unicodedata.combining(as_str) == 0:
return as_str
else:
return " " + as_str
def format_index(name, row_length, lang, bmp, duplicates, byte_rule):
out_file = open("%s%s.html" % (directory, name), "w")
out_file.write(("<!DOCTYPE html><html lang=en><meta charset=utf-8><title>%s</title><link rel=stylesheet href=visualization.css type=text/css><h1>%s</h1><p class=note role=note>This table is not normative.<p><a href='%s-bmp.html'>BMP coverage</a><p><a href='./#visualization'>Legend</a><table><thead>") % (name, name, "jis0208" if name == "shift_jis" else name))
dec_row_cell = False
if byte_rule:
(lead_one, lead_two, trail_one, trail_two) = byte_rule
if not (name == "big5" or name == "shift_jis"):
dec_row_cell = True
out_file.write("<tr><td><td><td>")
for i in range(row_length):
trail = i + trail_one
if trail_two and i >= 0x3F:
trail = i + trail_two
if trail < 0xA1:
out_file.write("<th>")
else:
out_file.write("<th>%d" % (trail - 0xA0))
out_file.write("<tr><td><td><td>")
else:
out_file.write("<tr><td><td>")
for i in range(row_length):
trail = i + trail_one
if trail_two and i >= 0x3F:
trail = i + trail_two
out_file.write("<th class=byte>%02X" % trail)
if dec_row_cell:
out_file.write("<tr><td><td><td>")
else:
out_file.write("<tr><td><td>")
else:
out_file.write("<tr><td>")
for i in range(row_length):
out_file.write("<th>%02X" % i)
out_file.write("<tbody>")
previous = None
new_row = True
pointer = 0
row_num = 0
astral_seen = set()
if name == "shift_jis":
name = "jis0208"
index = indexes[name]
for code_point in index:
if new_row:
out_file.write("<tr>")
if byte_rule:
(lead_one, lead_two, trail_one, trail_two) = byte_rule
lead = row_num + lead_one
if lead_two and row_num >= 0x1F:
lead = row_num + lead_two
if dec_row_cell:
if lead < 0xA1:
out_file.write("<th>")
else:
out_file.write("<th>%d" % (lead - 0xA0))
out_file.write("<th class=byte>%02X" % lead)
# Format single-byte encodings (whose row_length is 16) by lead byte
# as opposed to index high half
out_file.write("<th>%02X" % (row_num + 0x8 if row_length == 16 else row_num))
new_row = False
duplicate = False
if code_point is not None:
if code_point < 0x10000:
if bmp[code_point]:
duplicate = True
duplicates.add(code_point)
if code_point in big5_prefer_last:
bmp[code_point] = pointer
else:
bmp[code_point] = pointer
else:
if code_point in astral_seen:
duplicate = True
duplicates.add(code_point)
else:
astral_seen.add(code_point)
contiguous = previous and previous + 1 == code_point
out_file.write(("<td class='%s %s%s%s' aria-label='%s'><dl><dt>%d<dd lang=%s>%s<dd>U+%04X</dl>" % ("contiguous" if contiguous else "discontiguous", classify(code_point), " duplicate" if duplicate else "", check_compatibility(code_point), aria(code_point, contiguous, duplicate), pointer, lang, format_code_point(code_point), code_point)))
else:
out_file.write(("<td class=unmapped aria-label=Unmapped><dl><dt>%d<dd>\uFFFD<dd>\u00A0</dl>" % pointer))
previous = code_point
pointer += 1
if pointer % row_length == 0:
new_row = True
row_num += 1
out_file.write("</table>")
out_file.close()
def format_coverage(name, lang, bmp, duplicates):
out_file = open("%s%s-bmp.html" % (directory, name), "w")
out_file.write(("<!DOCTYPE html><html lang=en><meta charset=utf-8><title>BMP coverage of %s</title><link rel=stylesheet href=visualization.css type=text/css><h1>BMP coverage of %s</h1><p class=note role=note>This table is not normative.<p><a href='%s.html'>Index</a><p><a href='./#visualization'>Legend</a><table><thead><tr><td><td>") % (name, name, name))
for i in range(256):
out_file.write("<th>%02d" % i)
out_file.write("<tr><td><td>")
for i in range(256):
out_file.write("<th>%02X" % i)
out_file.write("<tbody>")
previous = None
new_row = True
row_num = -1
index = indexes[name]
for code_point in range(0x10000):
if code_point % 256 == 0:
new_row = True
row_num += 1
pointer = bmp[code_point]
if new_row:
out_file.write("<tr><th>%02d<th>%02X" % (row_num, row_num))
new_row = False
if code_point >= 0xD800 and code_point <= 0xDFFF:
out_file.write("<td class=surrogate>")
elif pointer is not None:
duplicate = code_point in duplicates
contiguous = previous and previous + 1 == pointer
out_file.write(("<td class='%s %s%s%s' aria-label='%s'><dl><dt>U+%04X<dd lang=%s>%s<dd>%d</dl>" % ("contiguous" if contiguous else "discontiguous", classify(code_point), " duplicate" if duplicate else "", check_compatibility(code_point), aria(code_point, contiguous, duplicate), code_point, lang, format_code_point(code_point), pointer)))
else:
out_file.write(("<td class=unmapped aria-label=Unmapped><dl><dt>U+%04X<dd>\uFFFD<dd>\u00A0</dl>" % code_point))
previous = pointer
out_file.write("</table>")
out_file.close()
for (name, row_length, lang) in names_lengths_langs:
bmp = [None] * 0x10000
duplicates = set()
byte_rule = None
if row_length != 16:
byte_rule = byte_rules[name]
format_index(name, row_length, lang, bmp, duplicates, byte_rule)
format_coverage(name, lang, bmp, duplicates)
bmp = [None] * 0x10000
duplicates = set()
format_index("shift_jis", 188, "ja", bmp, duplicates, byte_rules["shift_jis"])