Summary

Returns a table of patterns matching the current locale

Prototype

lpeg.locale ([table])

Description

Returns a table with patterns for matching some character classes according to the current locale. The table has fields named alnum, alpha, cntrl, digit, graph, lower, print, punct, space, upper, and xdigit, each one containing a correspondent pattern. Each pattern matches any single character that belongs to its class.

If called with an argument table, then it creates those fields inside the given table and returns that table.

For example:

local t = lpeg.locale()

function atwordboundary (p)
return lpeg.P{
[1] = p + t.alpha^0 * (1 - t.alpha)^1 * lpeg.V(1)
}
end

See Also ...

Lua functions

lpeg.B - Matches patt n characters behind the current position, consuming no input
lpeg.C - Creates a simple capture
lpeg.Carg - Creates an argument capture
lpeg.Cb - Creates a back capture
lpeg.Cc - Creates a constant capture
lpeg.Cf - Creates a fold capture
lpeg.Cg - Creates a group capture
lpeg.Cmt - Creates a match-time capture
lpeg.Cp - Creates a position capture
lpeg.Cs - Creates a substitution capture
lpeg.Ct - Creates a table capture
lpeg.match - Matches a pattern against a string
lpeg.P - Converts a value into a pattern
lpeg.print - Outputs debugging information to stdout
lpeg.R - Returns a pattern that matches a range of characters
lpeg.S - Returns a pattern that matches a set of characters
lpeg.setmaxstack - Sets the maximum size for the backtrack stack
lpeg.type - Tests if a value is a pattern
lpeg.V - Creates a non-terminal variable for a grammar
lpeg.version - Returns the LPeg version

Topics

Lua bc (big number) functions
Lua bit manipulation functions
Lua LPEG library
Lua package functions
Lua PCRE regular expression functions
Lua script extensions
Lua string functions
Lua syntax
Lua table functions
Lua utilities
Regular Expressions
Scripting
Scripting callbacks - plugins

(Help topic: lua=lpeg.locale)