Lua:
Перетворення рядка у нижній регістр
Що і чому?
Converting a string to lower case means changing all uppercase letters in a text to their lowercase counterparts. Programmers do this for consistency in text processing, such as case-insensitive comparisons or search.
How to:
Як це зробити:
local text = "Привіт, Як Справи?"
local lowercased_text = text:lower()
print(lowercased_text) -- outputs: "привіт, як справи?"Deep Dive
Занурення
Lua uses the function :lower() to convert text. Introduced in early versions, it’s been a straightforward feature without major changes. Alternatives include manually iterating over characters and converting them, but this is needlessly complex given Lua’s built-in function. Underneath, Lua taps into the C language’s character handling functions, ensuring speed and reliability across different systems. Note, however, Lua’s string manipulation doesn’t account for locale-specific rules. It works fine with basic Latin characters, but be cautious with Unicode strings, as results may vary.
See Also
Дивіться також
- Lua 5.4 Reference Manual: https://www.lua.org/manual/5.4/manual.html#6.4
- Lua string manipulation: https://www.lua.org/pil/20.html
- Unicode considerations in Lua: https://www.lua.org/manual/5.4/manual.html#6.5