Initial version - 1.2.0.60

EN: 1.2.0.60
CN: 1.2.0.61
JP: 1.2.0.63
KR: 1.2.0.67
This commit is contained in:
SL1900
2025-12-03 01:00:00 +09:00
commit 5e0d58cfad
3595 changed files with 9373562 additions and 0 deletions
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local utf8 = {}
function utf8.next_raw(s, i)
if not i then
if #s == 0 then
return nil
end
return 1, true
end
if i > #s then
return
end
local c = s:byte(i)
if 0 <= c and c <= 127 then
i = i + 1
elseif 194 <= c and c <= 223 then
i = i + 2
elseif 224 <= c and c <= 239 then
i = i + 3
elseif 240 <= c and c <= 244 then
i = i + 4
else
return i + 1, false
end
if i > #s then
return
end
return i, true
end
utf8.next = utf8.next_raw
function utf8.byte_indices(s, previ)
return utf8.next, s, previ
end
function utf8.len(s)
assert(s, "bad argument #1 to 'len' (string expected, got nil)")
local len = 0
for _ in utf8.byte_indices(s) do
len = len + 1
end
return len
end
function utf8.byte_index(s, target_ci)
if target_ci < 1 then
return
end
local ci = 0
for i in utf8.byte_indices(s) do
ci = ci + 1
if ci == target_ci then
return i
end
end
assert(target_ci > ci, "invalid index")
end
function utf8.char_index(s, target_i)
if target_i < 1 or target_i > #s then
return
end
local ci = 0
for i in utf8.byte_indices(s) do
ci = ci + 1
if i == target_i then
return ci
end
end
error("invalid index")
end
function utf8.prev(s, nexti)
nexti = nexti or #s + 1
if nexti <= 1 or nexti > #s + 1 then
return
end
local lasti, lastvalid = utf8.next(s)
for i, valid in utf8.byte_indices(s) do
if i == nexti then
return lasti, lastvalid
end
lasti, lastvalid = i, valid
end
if nexti == #s + 1 then
return lasti, lastvalid
end
error("invalid index")
end
function utf8.byte_indices_reverse(s, nexti)
if #s < 200 then
return utf8.prev, s, nexti
else
local t = {}
for i in utf8.byte_indices(s) do
if nexti and nexti <= i then
break
end
table.insert(t, i)
end
local i = #t + 1
return function()
i = i - 1
return t[i]
end
end
end
function utf8.sub(s, start_ci, end_ci)
assert(1 <= start_ci)
assert(not end_ci or 0 <= end_ci)
local ci = 0
local start_i, end_i
for i in utf8.byte_indices(s) do
ci = ci + 1
if ci == start_ci then
start_i = i
end
if ci == end_ci then
end_i = i
end
end
if not start_i then
assert(start_ci > ci, "invalid index")
return ""
end
if end_ci and not end_i then
if end_ci < start_ci then
return ""
end
assert(end_ci > ci, "invalid index")
end
return s:sub(start_i, end_i and end_i - 1)
end
function utf8.contains(s, i, sub)
if i < 1 or i > #s then
return nil
end
for si = 1, #sub do
if s:byte(i + si - 1) ~= sub:byte(si) then
return false
end
end
return true
end
function utf8.count(s, sub)
assert(0 < #sub)
local count = 0
local i = 1
while i do
if utf8.contains(s, i, sub) then
count = count + 1
i = i + #sub
if i > #s then
break
end
else
i = utf8.next(s, i)
end
end
return count
end
function utf8.isvalid(s, i)
local c = s:byte(i)
if not c then
return false
elseif 0 <= c and c <= 127 then
return true
elseif 194 <= c and c <= 223 then
local c2 = s:byte(i + 1)
return c2 and 128 <= c2 and c2 <= 191
elseif 224 <= c and c <= 239 then
local c2 = s:byte(i + 1)
local c3 = s:byte(i + 2)
if c == 224 then
return c2 and c3 and 160 <= c2 and c2 <= 191 and 128 <= c3 and c3 <= 191
elseif 225 <= c and c <= 236 then
return c2 and c3 and 128 <= c2 and c2 <= 191 and 128 <= c3 and c3 <= 191
elseif c == 237 then
return c2 and c3 and 128 <= c2 and c2 <= 159 and 128 <= c3 and c3 <= 191
elseif 238 <= c and c <= 239 then
if c == 239 and c2 == 191 and (c3 == 190 or c3 == 191) then
return false
end
return c2 and c3 and 128 <= c2 and c2 <= 191 and 128 <= c3 and c3 <= 191
end
elseif 240 <= c and c <= 244 then
local c2 = s:byte(i + 1)
local c3 = s:byte(i + 2)
local c4 = s:byte(i + 3)
if c == 240 then
return c2 and c3 and c4 and 144 <= c2 and c2 <= 191 and 128 <= c3 and c3 <= 191 and 128 <= c4 and c4 <= 191
elseif 241 <= c and c <= 243 then
return c2 and c3 and c4 and 128 <= c2 and c2 <= 191 and 128 <= c3 and c3 <= 191 and 128 <= c4 and c4 <= 191
elseif c == 244 then
return c2 and c3 and c4 and 128 <= c2 and c2 <= 143 and 128 <= c3 and c3 <= 191 and 128 <= c4 and c4 <= 191
end
end
return false
end
function utf8.next_valid(s, i)
local valid
i, valid = utf8.next_raw(s, i)
while i and (not valid or not utf8.isvalid(s, i)) do
i, valid = utf8.next(s, i)
end
return i
end
function utf8.valid_byte_indices(s)
return utf8.next_valid, s
end
function utf8.validate(s)
for i, valid in utf8.byte_indices(s) do
if not valid or not utf8.isvalid(s, i) then
error(string.format("invalid utf8 char at #%d", i))
end
end
end
local table_lookup = function(s, i, j, t)
return t[s:sub(i, j)]
end
function utf8.replace(s, f, ...)
if type(f) == "table" then
return utf8.replace(s, table_lookup, f)
end
if s == "" then
return s
end
local t = {}
local lasti = 1
for i in utf8.byte_indices(s) do
local nexti = utf8.next(s, i) or #s + 1
local repl = f(s, i, nexti - 1, ...)
if repl then
table.insert(t, s:sub(lasti, i - 1))
table.insert(t, repl)
lasti = nexti
end
end
table.insert(t, s:sub(lasti))
return table.concat(t)
end
local replace_invalid = function(s, i, j, repl_char)
if not utf8.isvalid(s, i) then
return repl_char
end
end
function utf8.sanitize(s, repl_char)
repl_char = repl_char or ""
return utf8.replace(s, replace_invalid, repl_char)
end
return utf8