REBOL/Core Users Guide For REBOL Version 2.3 Copyright 2005 REBOL Technologies Send comments/corrections to Feedback
1	Introduction	An introduction to REBOL/Core, information about the manual, technical support information, and where to send comments.
2	Operation	Installing, starting, and quitting REBOL sessions. Using the REBOL Console. Getting help from REBOL. Error messages. How to upgrade REBOL.
3	Quick Tour	A quick overview that describes values, words, blocks, variables, evaluation, functions, paths, objects, scripts, files, and networking.
4	Expressions	How blocks, values, and words are evaluated. Conditional, repeating, and selective expressions. Stopping evaluation. Error recovery.
5	Scripts	Script headers. Command line arguments to scripts. Loading, saving, and commenting scripts. Style guide on how to write good scripts.
6	Series	Series are the foundation of REBOL. Describes series functions and datatypes. Making and copying series. Series iteration. Searching and sorting series. Series as data sets.
7	Block Series	Specifics on block series. Blocks of blocks. Paths for nested blocks. Arrays. Composing blocks.
8	String Series	Special string functions and converting values to strings.
9	Functions	Evaluating functions and arguments. Defining functions. Nested, unnamed, and conditional functions. Function attributes. Scope of variables. Reflective properties. Online help for functions. Viewing function source code.
10	Objects	Making and cloning objects. Accessing objects. Referring to self. Encapsulation. Reflective properties
11	Math	Scalar datatypes. Evaluation order. Standard functions and operators. Type conversion. Comparison. Log, trig, and logic functions.
12	Files	File names and paths. Reading and writing files. Line conversion and blocks of lines. Directory access and directory file functions.
13	Network Protocols	About REBOL networking. Initial setup. DNS, Whois, Finger Daytime, HTTP, SMTP, POP, FTP, NNTP, CGI, TCP, and UDP.
14	Ports	About I/O ports. Opening, reading, writing, closing ports. Updating and waiting on ports. Other port modes. File permissions. Directory ports.
15	Parsing	Spitting strings. Grammar rules. Skipping input. Match types. Recursion and evaluation.
A1	Values	Summary of REBOL datatype values.
A2	Errors	REBOL error messages. Error categories. Catching errors. The error object. User generated errors.
A3	Console	The command prompt. History recall. Busy indicator. Advanced console operations.
C1	Changes	Addendum to this document covering 2.3.0-2.5.X
C2	Updates	Newer versions of REBOL, including alpha and beta releases.