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import std/sets
import std/streams
import std/strutils
import std/unicode
type
LowMap = seq[tuple[ucs: uint16, s: string]]
HighMap = seq[tuple[ucs: uint32, s: string]]
FullRangeList = tuple[lm: seq[(uint16, uint16)], hm: seq[(uint32, uint32)]]
FullSet = tuple[lm: seq[uint16], hm: seq[uint32]]
var MappedMapLow: LowMap
var MappedMapHigh: HighMap
var DisallowedRanges: FullRangeList
var Disallowed: FullSet
var Ignored: FullSet
proc loadIdnaData() =
template add_map(i: uint32, str: string) =
if i <= high(uint16):
MappedMapLow.add((uint16(i), str))
else:
MappedMapHigh.add((i, str))
template add_disallow(i, j: uint32) =
if i <= high(uint16):
DisallowedRanges.lm.add((uint16(i), uint16(j)))
else:
DisallowedRanges.hm.add((i, j))
template add_disallow(i: uint32) =
if i <= high(uint16):
Disallowed.lm.add(uint16(i))
else:
Disallowed.hm.add(i)
template add_ignore(rstart, rend: uint32) =
for i in rstart..rend:
if i <= high(uint16):
Ignored.lm.add(uint16(i))
else:
Ignored.hm.add(i)
template add_ignore(i: uint32) =
if i <= high(uint16):
Ignored.lm.add(uint16(i))
else:
Ignored.hm.add(i)
template add(firstcol: string, str: string, temp: untyped) =
if firstcol.contains(".."):
let fcs = firstcol.split("..")
let rstart = uint32(parseHexInt(fcs[0]))
let rend = uint32(parseHexInt(fcs[1]))
for i in rstart..rend:
temp(i, str)
else:
temp(uint32(parseHexInt(firstcol)), str)
template add(firstcol: string, temp: untyped) =
if firstcol.contains(".."):
let fcs = firstcol.split("..")
let rstart = uint32(parseHexInt(fcs[0]))
let rend = uint32(parseHexInt(fcs[1]))
temp(rstart, rend)
else:
temp(uint32(parseHexInt(firstcol)))
var f: File
if not open(f, "res/map/IdnaMappingTable.txt"):
stderr.write("res/map/IdnaMappingTable.txt not found\n")
quit(1)
let s = f.readAll()
f.close()
for line in s.split('\n'):
if line.len == 0 or line[0] == '#':
continue
var i = 0
var firstcol = ""
var status = ""
var thirdcol: seq[string]
var fourthcol = ""
while i < line.len and line[i] notin {'#', ';'}:
if line[i] != ' ':
firstcol &= line[i]
inc i
if line[i] != '#':
inc i
while i < line.len and line[i] notin {'#', ';'}:
if line[i] != ' ':
status &= line[i]
inc i
if line[i] != '#':
inc i
var nw = true
while i < line.len and line[i] notin {'#', ';'}:
if line[i] == ' ':
nw = true
else:
if nw:
thirdcol.add("")
nw = false
thirdcol[^1] &= line[i]
inc i
if line[i] != '#':
inc i
while i < line.len and line[i] notin {'#', ';'}:
if line[i] != ' ':
fourthcol &= line[i]
inc i
case status
of "mapped", "disallowed_STD3_mapped":
let codepoints = thirdcol
var str = ""
for code in codepoints:
str &= Rune(parseHexInt(code))
add(firstcol, str, add_map)
of "valid":
if fourthcol == "NV8" or fourthcol == "XV8":
add(firstcol, add_disallow)
of "disallowed":
add(firstcol, add_disallow)
of "ignored":
add(firstcol, add_ignore)
type LineWriter = object
s: Stream
line: string
proc write(writer: var LineWriter, s: string) =
if s.len + writer.line.len > 80:
writer.s.writeLine(writer.line)
writer.line = ""
writer.line &= s
proc flush(writer: var LineWriter) =
writer.s.writeLine(writer.line)
writer.line = ""
proc main() =
loadIdnaData()
var writer = LineWriter(s: newFileStream(stdout))
echo "type Z = cstring"
echo "const MappedMapLow: array[" & $MappedMapLow.len &
", tuple[ucs: uint16, mapped: Z]] = ["
for (ucs, s) in MappedMapLow:
writer.write("(" & $ucs & "," & s.escape() & ".Z),")
writer.flush()
echo "]"
echo ""
echo "const MappedMapHigh: array[" & $MappedMapHigh.len &
", tuple[ucs: uint32, mapped: Z]] = ["
for (ucs, s) in MappedMapHigh:
writer.write("(" & $ucs & "," & s.escape() & ".Z),")
writer.flush()
echo "]"
echo ""
echo "const DisallowedRangesLow: array[" & $DisallowedRanges.lm.len &
", tuple[ucs, mapped: uint16]] = ["
for (ucs, mapped) in DisallowedRanges.lm:
writer.write("(" & $ucs & "," & $mapped & "),")
writer.flush()
echo "]"
echo ""
echo "const DisallowedRangesHigh: array[" & $DisallowedRanges.hm.len &
", tuple[ucs, mapped: uint32]] = ["
for (ucs, mapped) in DisallowedRanges.hm:
writer.write("(" & $ucs & "," & $mapped & "),")
writer.flush()
echo "]"
echo ""
echo "const DisallowedLow: array[" & $Disallowed.lm.len & ", uint16] = ["
for ucs in Disallowed.lm:
writer.write($ucs & ",")
writer.flush()
echo "]"
echo ""
echo "const DisallowedHigh: array[" & $Disallowed.hm.len & ", uint32] = ["
for ucs in Disallowed.hm:
writer.write($ucs & ",")
writer.flush()
echo "]"
echo ""
echo "const IgnoredLow: array[" & $Ignored.lm.len & ", uint16] = ["
for ucs in Ignored.lm:
writer.write($ucs & ",")
writer.flush()
echo "]"
echo ""
echo "const IgnoredHigh: array[" & $Ignored.hm.len & ", uint32] = ["
for ucs in Ignored.hm:
writer.write($ucs & ",")
writer.flush()
echo "]"
main()
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