Rebol

Scripts

Animation

CGI

Compression

Console

Database

Debug

Dialects

Dialogs

Editor

Encryption

Extension

External Library

File

File Handling

Files

Financial

FTP

Game

Games

Graphics

GUI

HTML

HTTP

Internet

LDC

Markup

Math

Module

Network

Networking

None

Other - Net

Parse

Patch

Printing

Protocol

Rebol

Scheme

Scientific

SDK

Security

Shell

Sound

SQL

TCP

Testing

Text

Text Processing

User Interface

Util

Utility

VID

Visualization

Web

Win API

X-File

XML

Wiki

Download Script View Documentation

REBOL [
    Title: "Hash Table"
    Date: 12-Nov-2002/12:17:35+1:00
    Version: 1.0.2
    File: %hashtable.r
    Author: "Gregory Pecheret"
    Purpose: "Very simple Hashtable object, but usefull!"
    Email: gregory.pecheret@free.fr
    library: [
        level: 'intermediate 
        platform: 'all 
        type: 'tool 
        domain: 'database 
        tested-under: none 
        support: none 
        license: none 
        see-also: none
    ]
]


hashtable!: make object! [
data: copy []

addvalue: func [key value /local k] [
    inserted: false

    foreach k data [
        if key == first k [
            append second k value
            inserted: true
        ]
    ]

    if not inserted [
        append data compose/deep [[(key) [(value)]]]
    ]


]


getKeys: func [/local k ret] [
    ret: copy []
    foreach k data [
        append ret first k
    ]
    return ret
]

getValue: func [key /local k ret] [
    ret: none
    foreach k data [
        if key == first k [
            ret: second k
        ]
    ]
    return ret
]


getValues: func [] [
    ret: copy []
    foreach key getKeys [
        append ret getValue key
    ]
    unique ret
]
]


{
; sample
; values added with the same key are put in a list
addValue "ghg" "ofgfg"
addValue "ghg" "hjhkh"
addValue "aaaa" "popop"
probe getKeys
probe getValue "ghg"
probe getValue "aaaa"
probe getValues
}