mostvotedplaya/lua-ctype

Character type functions for Lua.

Lua-Ctype

This module provides some new functionality:

ctype.isAlnum()
ctype.isAlpha()
ctype.isCntrl()
ctype.isDigit()
ctype.isGraph()
ctype.isLower()
ctype.isPrint()
ctype.isPunct()
ctype.isSpace()
ctype.isUpper()
ctype.isHex()

All function calls will expect a string value and will return a boolean value.

isAlnum

Checks for just alphanumeric characters.

Example:

local ctype = require("ctype")

if ctype.isAlnum("ABC12345")
then
   print("Yes")
else
   print("No")
end

isAlpha

Checks for just alphabetic characters.

Example:

local ctype = require("ctype")

if ctype.isAlpha("ABCabc")
then
   print("Yes")
else
   print("No")
end

isCntrl

Checks for just control characters.

Example:

local ctype = require("ctype")

if ctype.isCntrl("\n\r\t")
then
   print("Yes")
else
   print("No")
end

isDigit

Checks for just numerical characters.

Example:

local ctype = require("ctype")

if ctype.isDigit("12345")
then
   print("Yes")
else
   print("No")
end

isGraph

Checks for any printable characters except space.

Example:

local ctype = require("ctype")

if ctype.isGraph("ABC")
then
   print("Yes")
else
   print("No")
end

isLower

Checks for just lowercase characters.

Example:

local ctype = require("ctype")

if ctype.isLower("abc")
then
   print("Yes")
else
   print("No")
end

isPrint

Checks for just printable characters.

Example:

local ctype = require("ctype")

if ctype.isPrint("Lee")
then
   print("Yes")
else
   print("No")
end

isPunct

Checks for any printable characters which are not whitespace or alphanumeric character.

Example:

local ctype = require("ctype")

if ctype.isPunct("@")
then
   print("Yes")
else
   print("No")
end

isSpace

Checks for just whitespace characters.

Example:

local ctype = require("ctype")

if ctype.isSpace(" ")
then
   print("Yes")
else
   print("No")
end

isUpper

Checks for just uppercase characters.

Example:

local ctype = require("ctype")

if ctype.isUpper("ABCDEFGH")
then
   print("Yes")
else
   print("No")
end

isHex

Checks for just characters representing a hexadecimal digit.

Example:

local ctype = require("ctype")

if ctype.isHex("ABCDEF0123456789")
then
   print("Yes")
else
   print("No")
end

Installation

Standard

git clone git://github.com/mostvotedplaya/Lua-Ctype.git
cd Lua-Ctype/src
make
make install

Luarocks

luarocks install --server=http://luarocks.org/dev luactype