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String operations trade space for time. Don't repeatedly concatenate onto the end of a string. Build up its individual parts in a table and use table.concat (). * by the reciprocal is faster than /. return and break can only occur at the end of a block. There's no continue. There's no goto. next is a global variable, not a keyword. By default ...
Note: Lua patterns are not regular expressions in the traditional POSIX sense, and they are not even a subset of regular expressions. But they share many constructs with regular expressions (more below). Lua patterns are used to define, find and handle a pattern in a string. It can do the common search and replace action in a text, but it has ...
Existing Eiffel software uses the string classes (such as STRING_8) from the Eiffel libraries, but Eiffel software written for .NET must use the .NET string class (System.String) in many cases, for example when calling .NET methods which expect items of the .NET type to be passed as arguments. So, the conversion of these types back and forth ...
Scribunto Lua reference manual (Manual for the Mediawiki implementation) Programming in Lua (Official book/introduction to Lua) Lua tutorials at lua-users.org; Wiktionary:Lua on English Wiktionary: contains notes on efficiency and on dealing with Unicode and UTF-8
Lua bytecode can also be produced and executed from within Lua, using the dump function from the string library and the load/loadstring/loadfile functions. Lua version 5.3.4 is implemented in approximately 24,000 lines of C code. [3] [4]
Lua can process text strings in excess of 230,000 characters, which allows the formatted contents of article pages to be used as input to string searches. However, there have been some limitations in string contents, such as hidden strings enclosed in nowiki-tag or pre-tag elements.
String interning is supported by some modern object-oriented programming languages, including Java, Python, PHP (since 5.4), Lua [4] and .NET languages. [5] Lisp , Scheme , Julia , Ruby and Smalltalk are among the languages with a symbol type that are basically interned strings.
The set of basic C data types is similar to Java's. Minimally, there are four types, char, int, float, and double, but the qualifiers short, long, signed, and unsigned mean that C contains numerous target-dependent integer and floating-point primitive types. [15]