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Add check if coroutine lib is accessible

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GreenComfyTea
2022-08-01 19:54:17 +03:00
parent b8df1c8da7
commit 0f0aabb750
1 changed files with 9 additions and 5 deletions
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14
reframework/autorun/MHR_Overlay/Misc/unicode_helpers.lua
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@@ -60,8 +60,12 @@ end
-- like string.sub() but i, j are utf8 strings -- like string.sub() but i, j are utf8 strings
-- a utf8-safe string.sub() -- a utf8-safe string.sub()
function unicode_helpers.sub(string, i, j) function unicode_helpers.sub(str, i, j)
local l = utf8.len(string); if coroutine == nil then
return str;
end
local l = utf8.len(str);
i = unicode_helpers.relative_position(i, l); i = unicode_helpers.relative_position(i, l);
j = j and unicode_helpers.relative_position(j, l) or l; j = j and unicode_helpers.relative_position(j, l) or l;
@@ -79,7 +83,7 @@ function unicode_helpers.sub(string, i, j)
end end
local diff = j - i; local diff = j - i;
local iterator = unicode_helpers.chars(string, true); local iterator = unicode_helpers.chars(str, true);
-- advance up to i -- advance up to i
for _ = 1, i - 1 do for _ = 1, i - 1 do
@@ -90,7 +94,7 @@ function unicode_helpers.sub(string, i, j)
-- i and j are the same, single-charaacter sub -- i and j are the same, single-charaacter sub
if diff == 0 then if diff == 0 then
return string.sub(string, b, b + c - 1); return string.sub(str, b, b + c - 1);
end end
i = b; i = b;
@@ -102,7 +106,7 @@ function unicode_helpers.sub(string, i, j)
c, b = select(2, iterator()); c, b = select(2, iterator());
return string.sub(string, i, b + c - 1); return string.sub(str, i, b + c - 1);
end end
function unicode_helpers.init_module() function unicode_helpers.init_module()