Lua string

Returns a binary representation of the given function, so that a later loadstring on that string returns a copy of the function. Bufret Lignende Oversett denne siden 2. Lua is eight-bit clean and so strings may contain characters with any numeric value, including embedded zeros. That means that you can store any binary data into a string.

You cannot change a character inside a . Strings in Lua are immutable values.

The power of a raw Lua interpreter to manipulate strings is quite limited. A program can create string literals and concatenate them. But it cannot extract a substring, check its size, or examine its contents. The full power to manipulate strings in Lua comes from its string library. The most powerful functions in the string library are string.

Global Substitution), and string. They all are based on patterns. Unlike several other scripting languages, Lua does not use POSIX regular expressions (regexp) for pattern matching.

For Lua , patterns are regular strings.

Only inside the functions are they interpreted as patterns and only then does the ` ´ work as an escape. Therefore, if you need to put a quote inside a pattern, you must use the same techniques that you use to. Lua denotes the string concatenation operator by. If any of its operands is a number, Lua converts that number to a string. Remember that strings in Lua are immutable values.

The concatenation operator always creates a new . Indices are allowed to be negative and are interpreted as indexing backwards . This library provides generic functions for string manipulation, such as finding and extracting substrings, and pattern matching. When indexing a string in Lua , the first character is at position (not at as in some other languages). The end point is optional and defaults to – which is the entire rest of the string. These are the functions in the string table.

Indices, where use start at for the first character (not zero). Negative numbers count from the right, so -is the last character, -the second last, and so on. All strings have a metatable added to them by Lua with an __index entry pointing to the string table. Each module uses a table to hold functions and variables, and that containing table is returned at the end of the module code. But it may be more efficient to use a pattern with string.

Returns a sub- string , starting from the character at position StartPos of the string (inclusive), and optionally ending at the character at position EndPos of the string (also inclusive). If EndPos is not given, the rest of the string is returned. I think when it comes to string handling, Perl is the Cadillac of the industry.

Concatenation and Other . Sandbox mod for the Source Engine. Contribute to garrysmod development by creating an account on GitHub. The string -search functions in Lua script can run extremely fast, comparing millions of characters per second.

For example, a search of a 4000-character article text, for separate words (passed as parameters in a template), ran within one second of Lua CPU clock time. That total time involved the pinpointing of the . Note that numerical codes are not necessarily portable across platforms. Returns a string containing a binary representation of the given function , so that a later loadstring on this string returns a copy of the function.

Принимает или более целых чисел. Lua function without upvalues.