Contents

• 1 Introduction
• 2 Environment and Chunks
• 3 Types
• 4 The Language
  • 4.1 Lexical Conventions
  • 4.2 Coercion
  • 4.3 Adjustment
  • 4.4 Statements
    • 4.4.1 Blocks
    • 4.4.2 Assignment
    • 4.4.3 Control Structures
    • 4.4.4 Function Calls as Statements
    • 4.4.5 Local Declarations
  • 4.5 Expressions
    • 4.5.1 Simple Expressions
    • 4.5.2 Arithmetic Operators
    • 4.5.3 Relational Operators
    • 4.5.4 Logical Operators
    • 4.5.5 Concatenation
    • 4.5.6 Precedence
    • 4.5.7 Table Constructors
    • 4.5.8 Function Calls
  • 4.6 Function Definitions
  • 4.7 Fallbacks
  • 4.8 Error Handling
• 5 The Application Program Interface
  • 5.1 Executing Lua Code
  • 5.2 Converting Values between C and Lua
  • 5.3 Manipulating Lua Objects
  • 5.4 Calling Lua Functions
  • 5.5 C Functions
  • 5.6 References to Lua Objects
• 6 Predefined Functions and Libraries
  • 6.1 Predefined Functions
    • dofile (filename)
    • dostring (string)
    • next (table, index)
    • nextvar (name)
    • tostring (e)
    • print (e1, e2, ...)
    • tonumber (e)
    • type (v)
    • assert (v)
    • error (message)
    • setglobal (name, value)
    • getglobal (name)
    • setfallback (fallbackname, newfallback)
  • 6.2 String Manipulation
    • strfind (str, substr, [init, [end]])
    • strlen (s)
    • strsub (s, i, [j])
    • strlower (s)
    • strupper (s)
    • ascii (s, [i])
    • format (formatstring, e1, e2, ...)
  • 6.3 Mathematical Functions
  • 6.4 I/O Facilities
    • readfrom (filename)
    • writeto (filename)
    • appendto (filename)
    • remove (filename)
    • rename (name1, name2)
    • tmpname ()
    • read ([format])
    • readuntil (char)
    • write (value, [format])
    • date ([format])
    • exit ([code])
• 7 The Debuger Interface
  • 7.1 Stack and Function Information
  • 7.2 Manipulating Local Variables
  • 7.3 Hooks
• 8 Some Examples
  • 8.1 Data Structures
  • 8.2 The Functions next and nextvar
  • 8.3 Manipulating Strings
  • 8.4 Variable number of arguments
  • 8.5 Persistence
  • 8.6 Inheritance
  • 8.7 Programming with Classes
  • 8.8 Modules
  • 8.9 A CFunction
  • 8.10 Calling Lua Functions from C
• Acknowledgments
• Incompatibilities with Previous Versions
  • Incompatibilities with version 2.2
  • Incompatibilities with version 2.1
  • Incompatibilities with version 1.1
• Index
• About this document ...