Programming in Lua 20 1
When a match succeeds a string sub of the values returned by string find would return the part of the subject string that matched the pattern For simple patterns this is the pattern itself The string find function has an optional third parameter an index that tells where in the subject string to start the search
String match Lua Commands, DESCRIPTION pattern in the string s If it finds one then match returns the captures from the pattern otherwise it returns nil If pattern specifies no captures then the whole match is returned A third optional numerical argument init specifies where to start the search its default value is 1 and can be negative RETURN VALUE
Lua 5 1 Reference Manual
Any expression enclosed in parentheses always results in only one value Thus f x y z is always a single value even if f returns several values The value of f x y z is the first value returned by f or nil if f does not return any values 2 5 1 Arithmetic Operators
Programming in Lua 5 1, Several predefined functions in Lua return multiple values An example is the string find function which locates a pattern in a string It returns two indices the index of the character where the pattern match starts and the one where it ends or nil if it cannot find the pattern A multiple assignment allows the program to get both results
Lua users wiki Patterns Tutorial
Lua users wiki Patterns Tutorial, One way to fix this is using string match one two three four five two three four string match one two three four five two string match one two three four five another solution can be to not let the contents match the delimiter two
Lua string string
Lua Strings find Codecademy
Lua Strings find Codecademy The find function is used to search for a substring within a string and returns the start and end indices of the first occurrence of the substring If the substring is not found the function returns nil Syntax These are 2 different syntaxes for the find function string find fullString searchString init pattern
Lua Table To String Code Example
The character represents one or more matched characters in the sequence and it will always return the longest matched sequence local foo 12345678bar123 print foo match d 12345678 As you can see is similar to but it accepts zero occurrences of characters and is commonly used to match optional spaces between different patterns Lua Tutorial Lua pattern matching. The find function First let s take a look at the string find function in general The function string find s substr init plain returns the start and end index of a substring if found and nil otherwise starting at the index init if it is provided defaults to 1 Lua provides functions for matching strings through patterns string find string s string pattern number init boolean plain Searchs the string s with string pattern The optional init controls where the search starts default 1 The optional plain controls whether the string pattern matching facilities are enabled
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