The Ring programming language version 1.9 book - Part 206 of 210

1. Ring Documentation, Release 1.9
116.5 Contact the Authors
Ring Team : http://ring-lang.sourceforge.net/team.html
116.5. Contact the Authors 2019

2. INDEX
3D Cube and Texture
Using RingOpenGL and RingAllegro for 3D Graph-
ics, 642
Access List Items by String Index
Lists, 255
Access Objects Using Braces
Object Oriented Programming, 344
Access String Letters
Strings, 259
Accessing the class attributes from braces inside class
methods
Scope Rules, 802
Add Items
Lists, 249
addattribute()
Reflection and Meta-programming, 375
AddDays()
Date and Time, 268
Adding code to the generated code
Code Generator, 908
Adding Hyperlink to QLabel
Desktop and Mobile Development, 699
addmethod()
Reflection and Meta-programming, 375
Analog Clock
Applications developed in little hours, 7
Animate Class
Game Engine for 2D Games, 545
Animate Events
Game Engine for 2D Games, 556
Animation
Game Engine for 2D Games, 550
Animation and Functions
Game Engine for 2D Games, 551
Anonymous and Nested Functions
Functional Programming, 360
Application Class
Web Development (CGI Library), 495
Application Database
Deploying Web Applications in the Cloud, 503
Applications
How to contribute?, 185
Applications developed in little hours
Analog Clock, 7
Calculator Application, 11
FetchStockData Application, 4
Fifteen Puzzle Game 2, 5
Google API Shortener Application, 6
Innovative, 20
Introduction, 1
Practical, 21
Quotes about Ring, 1
Samples in this book, 14
Squares Puzzle Game, 9
TicTacToe Game, 8
Video-Music-Player Application, 10
Werdy Application, 13
Windows StartUp Manager Application, 12
apppath()
Stdlib Functions, 382
Arabic Resources
Resources, 2018
Arithmetic Operations
Performance Tips, 847
Arithmetic Operators
Operators, 215
Ascii()
Data Type, 276
ASCIIList2Str()
Stdlib Functions, 398
Assert()
Eval() and Debugging, 303
Assignment Operators
Operators, 216
attributes()
Reflection and Meta-programming, 372
Better Call Command
What is new in Ring 1.2?, 162
Better Cards Game
What is new in Ring 1.8?, 67
Better Code Generator For Extensions
What is new in Ring 1.8?, 68
Better Code Generator for Extensions
What is new in Ring 1.1?, 172
2020

3. Ring Documentation, Release 1.9
What is new in Ring 1.5?, 113
What is new in Ring 1.9?, 55
Better Documentation
What is new in Ring 1.1?, 172
What is new in Ring 1.7?, 74
Better Documentation Generator for Extensions
What is new in Ring 1.5?, 114
Better Form Designer
What is new in Ring 1.8?, 66
Better Functions
What is new in Ring 1.2?, 159
Better Loop|Exit Command
What is new in Ring 1.3?, 153
Better Memory Management
What is new in Ring 1.9?, 54
Better Natural Language Programming Support
What is new in Ring 1.1?, 164
Better Objects Library
What is new in Ring 1.5?, 100
Better Performance
What is new in Ring 1.8?, 57
Better Quality
What is new in Ring 1.2?, 162
What is new in Ring 1.5?, 122
Better Ring Compiler and VM
What is new in Ring 1.8?, 68
Better Ring For Android
What is new in Ring 1.6?, 79
Better Ring Notepad
What is new in Ring 1.2?, 159
What is new in Ring 1.3?, 149
What is new in Ring 1.5?, 91
What is new in Ring 1.6?, 82
What is new in Ring 1.7?, 73
What is new in Ring 1.9?, 45
Better Ring VM
What is new in Ring 1.7?, 74
Better Ring2EXE
What is new in Ring 1.7?, 74
Better RingQt
What is new in Ring 1.2?, 159
What is new in Ring 1.3?, 145
What is new in Ring 1.4?, 140
What is new in Ring 1.5?, 98
What is new in Ring 1.6?, 84
What is new in Ring 1.7?, 73
What is new in Ring 1.8?, 67
What is new in Ring 1.9?, 51
Better RingREPL
What is new in Ring 1.6?, 85
Better RingVM
What is new in Ring 1.6?, 85
Better RingZip
What is new in Ring 1.7?, 74
Better Scripts for building Ring
What is new in Ring 1.6?, 81
Better StdLib
What is new in Ring 1.3?, 153
What is new in Ring 1.4?, 138
What is new in Ring 1.5?, 94
What is new in Ring 1.6?, 85
What is new in Ring 1.9?, 46
Better Trace Library
What is new in Ring 1.7?, 72
Better WebLib
What is new in Ring 1.4?, 138
What is new in Ring 1.5?, 95
bignumber
BigNumber Class, 1211
BigNumber Functions, 1210
Examples, 1209
Introduction, 1208
Library Source Code, 1211
Loading the library, 1209
BigNumber Class
bignumber, 1211
BigNumber Functions
bignumber, 1210
BigNumber Library
What is new in Ring 1.9?, 47
binarydigits()
Stdlib Functions, 391
Bitwise Operators
Operators, 216
BraceError() Method
Natural Language Programming, 437
BraceExprEval Method
Natural Language Programming, 436
BraceStart and BraceEnd Methods
Natural Language Programming, 435
Branching
Control Structures, 218
Control Structures - Second Style, 225
Control Structures - Third Style, 228
BreakPoint
The Trace Library and the Interactive Debugger, 885
Building From Source Code
Building using CMake, 182
Building using Fedora Linux, 178
Building using MacOS X, 180
Building using Microsoft Windows, 174
Building using Ubuntu Linux, 176
Introduction, 173
Building Games For Android
Building the project, 592
Download Requirements and Update the Android
SDK, 591
Introduction, 590
Index 2021

4. Ring Documentation, Release 1.9
Project Folder, 591
Building RingQt Applications for Mobile
Comments about developing for Android using
RingQt, 776
Download Requirements, 775
Install Qt for Android, 775
Introduction, 774
The Qt project for your Ring application, 776
Update the Android SDK, 775
Using Ring2EXE, 776
Building standalone console application
Distributing Ring Application using Ring2EXE, 853
Building the Cards Game for Mobile using RingQt
Distributing Ring Application using Ring2EXE, 855
Building the Form Designer for Mobile using RingQt
Distributing Ring Application using Ring2EXE, 857
Building the project
Building Games For Android, 592
Building the Weight History Application for Mobile using
RingQt
Distributing Ring Application using Ring2EXE, 856
Building using CMake
Building From Source Code, 182
Building using Fedora Linux
Building From Source Code, 178
Building using MacOS X
Building From Source Code, 180
Building using Microsoft Windows
Building From Source Code, 174
Building using Ubuntu Linux
Building From Source Code, 176
Calculator Application
Applications developed in little hours, 11
What is new in Ring 1.5?, 90
Call Functions
Functions - First Style, 235
Functions - Second Style, 239
Functions - Third Style, 243
callgc()
Low Level Functions, 862
Calling a function sharing the name with a method in the
current class
Scope Rules for Functions and Methods, 814
Calling Functions and Methods
Performance Tips, 848
Can I connect to dbase/harbour database?
Frequently Asked Questions, 954
Can Ring work on Windows XP?
Frequently Asked Questions, 956
capitalized()
Stdlib Functions, 385
cfunctions()
Reflection and Meta-programming, 365
CGI Support
Command Line Options, 842
Change Focus
Desktop and Mobile Development, 736
Change Language Keywords
Syntax Flexibility, 816
Change Language Operators
Syntax Flexibility, 817
Change the ’=’ operator to ’is’
Natural Language Programming, 433
Change the Ring Keyword ’And’
Natural Language Programming, 431
Change the Ring Operator ’+’
Natural Language Programming, 432
Change: Basic Extensions are separated from RingVM
What is new in Ring 1.4?, 133
changestring()
Stdlib Functions, 394
Char()
Data Type, 276
ChDir() Function
System Functions, 299
Check Character
Data Type, 271
Check Data Type
Data Type, 270
Check Parameters Count
Extension, 894
Check Parameters Type
Extension, 895
Classes and Objects
Object Oriented Programming, 342
Classes and their Methods to use the default events
Desktop and Mobile Development, 766
classes()
Reflection and Meta-programming, 369
classname()
Reflection and Meta-programming, 371
Clean Natural Code
Natural Language Programming, 438
Clearerr()
Files, 289
Client Example
RingLibuv, 535
Client Example - Using Classes
RingLibuv, 538
clock()
Date and Time, 266
Close Window Event
RingLibSDL, 529
ClosPerSecond()
Date and Time, 266
Code Generator
Adding code to the generated code, 908
Index 2022

5. Ring Documentation, Release 1.9
Comments in configuration file, 910
Configuration file, 906
Configuration file for the Allegro library, 911
Configuration Files Examples, 926
Constants Type, 911
Defining Constants, 909
Determine Structure Members Types, 909
Enum and Numbers, 910
Executing code during code generation, 910
Filtering using Expressions, 910
function prototype, 906
Introduction, 905
Loading Files, 925
Managed Classes, 925
Prefix for Functions Names, 908
Qt configuration file, 915
Register New Functions, 909
Static Methods, 924
Threads Support, 913
Using configuration file that wrap C++ library, 915
Using the tool, 906
Wrap structures, 908
Wrapping C++ Classes, 914
CodeEditor Class
RingQt Classes Reference, 978
Command Line Options
CGI Support, 842
Generate Object File, 843
Introduction, 828
No Run, 842
Performance, 842
Printing Final Intermediate Code, 837
Printing Instruction Operation Code, 842
Printing Intermediate Code, 835
Printing Rules, 831
Printing Tokens, 829
Comments about developing for Android using RingQt
Building RingQt Applications for Mobile, 776
Comments about evaluation
Control Structures - First Style, 223
Comments in configuration file
Code Generator, 910
Compact Syntax
Language Design, 32
Compiler and Virtual Machine (VM)
How to contribute?, 185
Compiler Errors
Reference, 967
Compiling on Manjaro Linux
What is new in Ring 1.8?, 62
Composition
Object Oriented Programming, 345
Configuration file
Code Generator, 906
Configuration file for the Allegro library
Code Generator, 911
Configuration Files Examples
Code Generator, 926
Configure the Apache web server
Web Development (CGI Library), 447
Conflict between Class Attributes and Local Variables
Scope Rules, 799
Conflict between Global Variables and Class Attributes
Frequently Asked Questions, 942
Scope Rules, 798
Conflict between self inside braces and self in the class
region
Scope Rules, 805
Constants Type
Code Generator, 911
Constructor methods in Ring
Frequently Asked Questions, 938
Contact the Authors
Resources, 2018
Context Menu
Desktop and Mobile Development, 681
Control Structures
Branching, 218
Looping, 229
Control Structures - First Style
Comments about evaluation, 223
Do Again Loop, 221
Exit, 221
Exit from two loops, 221
Exit/Loop inside sub functions, 222
For In Loop, 220
for in to modify lists, 220
For Loop, 219
Introduction, 217
Loop Command, 222
Looping, 219
Short-circuit evaluation, 222
Step Option, 220
Switch Statement, 218
While Loop, 219
Control Structures - Second Style
Branching, 225
Exceptions, 227
For In Loop, 227
For Loop, 226
If Statement, 225
Introduction, 224
Looping, 226
Switch Statement, 225
Control Structures - Third Style
Branching, 228
Exceptions, 231
For In Loop, 231
Index 2023

6. Ring Documentation, Release 1.9
For Loop, 230
If Statement, 228
Introduction, 227
Switch Statement, 228
While Loop, 229
Conversion
Data Type, 275
Conversion Class
Stdlib Classes, 417
Convert between Numbers and Bytes
What is new in Ring 1.4?, 137
Convert Letters Case
Strings, 259
Cookies
Web Development (CGI Library), 459
Copy Lists
Lists, 253
Copy()
Strings, 261
Could you explain the output of the StrCmp() function?
Frequently Asked Questions, 945
Create Database
MySQL Functions, 318
Create Executable File
Getting Started - First Style, 186
Getting Started - Second Style, 189
Getting Started - Third Style, 191
Create Lists
Lists, 249
Create Multi Dimension Array Using List and Recursion
Lists, 256
Create Table and Insert Data
MySQL Functions, 319
Create Window
RingLibSDL, 526
Create your first extension
Introduction, 926
Location, 927
Steps to create the extension, 927
Testing the extension, 928
Create Zip File
RingZip, 509
Creating a Class for each Window in GUI applications
Scope Rules, 804
Creating Lists
Performance Tips, 846
Creating Menubar
Desktop and Mobile Development, 678
Creating more than one window
Desktop and Mobile Development, 719
Creating Reports using the WebLib and the GUILib
Desktop and Mobile Development, 771
Creating StatusBar
Desktop and Mobile Development, 683
Creating the Game Window
Game Engine for 2D Games, 545
Creating the Qt resource file using Folder2qrc
Distributing Ring Application using Ring2EXE, 859
Creating Toolbar
Desktop and Mobile Development, 682
Creating Windows Installer
Distributing Ring Application, 851
CRUD Example using MVC
Web Development (CGI Library), 481
CurrentDir() Function
System Functions, 299
Data Representation
General Information, 962
Data Type
Ascii(), 276
Char(), 276
Check Character, 271
Check Data Type, 270
Conversion, 275
Dec(), 276
Hex(), 276
Hex2str(), 277
Introduction, 269
IsAlNum(), 272
IsAlpha(), 272
IsCntrl(), 272
IsDigit(), 273
IsGraph(), 273
IsList(), 271
IsLower(), 273
IsNULL(), 271
IsNumber(), 270
IsPrint(), 273
IsPunct(), 274
IsSpace(), 274
IsString(), 270
IsUpper(), 274
IsXdigit(), 274
Number(), 275
Str2Hex(), 277
String(), 275
Type(), 271
Database, ModelBase & ControllerBase classes
Web Development (CGI Library), 489
DataType Class
Stdlib Classes, 416
Date and Time
AddDays(), 268
clock(), 266
ClosPerSecond(), 266
Date(), 266
DiffDays(), 268
Index 2024

7. Ring Documentation, Release 1.9
EpochTime(), 268
Introduction, 265
Time(), 266
TimeList(), 267
Date()
Date and Time, 266
DateTime Class
Stdlib Classes, 411
dayofweek()
Stdlib Functions, 392
Debug Class
Stdlib Classes, 415
Dec()
Data Type, 276
Decimals()
Mathematical Functions, 282
Declarative Programming
Declarative programming on the top of Object-
Oriented, 427
executing code after the end of object access, 427
Introduction, 423
More Beatiful Code, 428
Objects inside lists, 424
Return object by reference, 425
Declarative programming on the top of Object-Oriented
Declarative Programming, 427
Declare parameters
Functions - First Style, 236
Functions - Second Style, 240
Functions - Third Style, 244
Decrypt()
Security and Internet Functions, 339
Deep Copy
Variables, 213
Default value for object attributes
Object Oriented Programming, 357
Default value for object attributes is NULL
What is new in Ring 1.8?, 64
Define Declarative Languages
Language Design, 35
Define Functions
Functions - First Style, 235
Functions - Second Style, 239
Functions - Third Style, 243
Define Natural Statements
Language Design, 33
Defining Commands
Using the Natural Library, 442
Defining commands using classes
Using the Natural Library, 445
Defining Constants
Code Generator, 909
Defining Variables and Variables Access
Scope Rules, 796
Delete Item From List
Lists, 250
Demo Programs
Introduction, 303
Language Shell, 304
Main Menu, 304
The Cards Game, 760
Deploying after updates
Deploying Web Applications in the Cloud, 503
Deploying Web Applications in the Cloud
Application Database, 503
Deploying after updates, 503
Hello World program, 502
Introduction, 500, 501
Local Tests, 503
Ring source code files and permissions, 502
Usage, 501
Deploying Web applications in the Cloud
What is new in Ring 1.9?, 50
Designed for a clear goal
Language Design, 30
Desktop and Mobile Development
Adding Hyperlink to QLabel, 699
Change Focus, 736
Classes and their Methods to use the default events,
766
Context Menu, 681
Creating Menubar, 678
Creating more than one window, 719
Creating Reports using the WebLib and the GUILib,
771
Creating StatusBar, 683
Creating Toolbar, 682
Dialog Functions, 726
Display Image using QLabel, 703
Display Scaled Image using QLabel, 712
Drawing using QPainter, 714
Dynamic Objects, 740
Inheritance from GUI Classes, 732
KeyPress and Mouse Move Events, 727
Menubar and StyleSheet Example, 704
Methods to use Events with Events Filter, 769
Movable Label Example, 723
Moving Objects using the Mouse, 728
New Classes names - Index Start from 1, 771
Notepad Application, 745
Other Widgets Events, 708
Playing Sound, 720
Printing using QPrinter, 716
QLineEdit Events and QMessageBox, 706
QMessagebox Example, 724
QVideoWidget and QMediaPlayer, 700
Regular Expressions, 737
RingQt Classes and their Qt Documentation, 771
Index 2025

8. Ring Documentation, Release 1.9
Rotate Text, 734
Simple Client and Server Example, 738
The Cards Game, 760
The Difference between Qt and RingQt, 770
The Events Loop, 669
The First GUI Application, 668
Using Layout, 670
Using QCheckBox, 696
Using QComboBox Class, 677
Using QDateEdit, 691
Using QDesktopWidget Class, 733
Using QDial, 692
Using QDockWidget, 684
Using QFrame, 701
Using QInputDialog Class, 725
Using qLCDNumber, 722
Using QPrintPreviewDialog, 717
Using QProgressBar, 688
Using QProgressBar and Timer, 711
Using QRadioButton and QButtonGroup, 697
Using QSlider, 689
Using QSpinBox, 689
Using QTableWidget, 687
Using QTabWidget, 685
Using QTreeView and QFileSystemModel, 675
Using QTreeWidget and QTreeWidgetItem, 676
Using QWebView, 695
Using the QColorDialog Class, 721
Using the QFileDialog Class, 713
Using the QListWidget Class, 672
Using the QTextEdit Class, 671
Using the QTimer Class, 710
Weight History Application, 741
Determine Structure Members Types
Code Generator, 909
Dialog Functions
Desktop and Mobile Development, 726
DiffDays()
Date and Time, 268
Dir()
Files, 285
direxists()
Stdlib Functions, 394
Disable BreakPoints
The Trace Library and the Interactive Debugger, 885
Display Error Message
Extension, 895
Display Image
RingLibSDL, 526
Display Image using QLabel
Desktop and Mobile Development, 703
Display PNG Images
RingLibSDL, 527
Display Scaled Image using QLabel
Desktop and Mobile Development, 712
Display Transparent Images
RingLibSDL, 528
Display Warnings Option
What is new in Ring 1.2?, 162
Distributing Applications and Games for Mobile
Distributing Ring Application, 851
Distributing Applications for Microsoft Windows
Distributing Ring Application, 850
Distributing Applications for Mobile using RingQt
Distributing Ring Application using Ring2EXE, 855
Distributing Ring Application
Creating Windows Installer, 851
Distributing Applications and Games for Mobile,
851
Distributing Applications for Microsoft Windows,
850
Introduction, 849
Protecting the Source Code, 850
The files ring.ring and ring.ringo, 851
Using C/C++ Compiler and Linker, 851
Distributing Ring Application using Ring2EXE
Building standalone console application, 853
Building the Cards Game for Mobile using RingQt,
855
Building the Form Designer for Mobile using
RingQt, 857
Building the Weight History Application for Mobile
using RingQt, 856
Creating the Qt resource file using Folder2qrc, 859
Distributing Applications for Mobile using RingQt,
855
Distributing RingAllegro Applications, 854
Example, 852
How Ring2EXE works?, 852
Important Information about Ring2EXE, 859
Introduction, 851
Options, 853
Using Ring2EXE, 852
Distributing RingAllegro Applications
Distributing Ring Application using Ring2EXE, 854
Do Again Loop
Control Structures - First Style, 221
Documentation
How to contribute?, 184
Download Requirements
Building RingQt Applications for Mobile, 775
Download Requirements and Update the Android SDK
Building Games For Android, 591
Download()
Security and Internet Functions, 340
Draw Rectangle
RingLibSDL, 527
Drawing Text
Index 2026

9. Ring Documentation, Release 1.9
Game Engine for 2D Games, 546
Drawing using QPainter
Desktop and Mobile Development, 714
Drawing using RingOpenGL
Using RingOpenGL and RingFreeGLUT for 3D
Graphics, 596
Drawing, Animation and Input
Graphics and Game Programming, 512
Dynamic Attributes
Object Oriented Programming, 351
Dynamic Objects
Desktop and Mobile Development, 740
Dynamic Typing
Variables, 213
Editors Support
How to contribute?, 185
Embedding Ring in Ring
Embedding Ring in Ring, 887
Embedding Ring in Ring without sharing the State,
888
ring_state_new() and ring_state_mainfile(), 890
ring_state_setvar(), 889
Runtime Errors when Embedding Ring in Ring, 891
Serial Execution of Programs, 888
Embedding Ring in Ring without sharing the State
Embedding Ring in Ring, 888
What is new in Ring 1.3?, 155
Embedding Ring Language in C/C++ Programs
Introduction, 902
Ring State, 903
Ring State Functions, 903
Ring State Variables, 904
Employee Application
What is new in Ring 1.6?, 78
Encourage Organization
Language Design, 32
Encrypt()
Security and Internet Functions, 338
endswith()
Stdlib Functions, 388
Entering Items
Form Designer, 790
Enum and Numbers
Code Generator, 910
Environment Errors
Reference, 969
EpochTime()
Date and Time, 268
Stdlib Functions, 396
Equality of functions
Functional Programming, 361
Eval()
Eval() and Debugging, 301
Eval() and Debugging
Assert(), 303
Eval(), 301
Introduction, 300
Raise(), 302
Try/Carch/Done, 301
evenorodd()
Stdlib Functions, 390
Events Code
Form Designer, 786
Example
Distributing Ring Application using Ring2EXE, 852
Files, 291
FoxRing Functions Reference, 1207
Mathematical Functions, 278
Natural Language Programming, 430
Objects Library for RingQt Application, 779
RingMurmurHash Functions Reference, 1193
Security and Internet Functions, 339
System Functions, 296
The Type Hints Library, 826
Example - The Trace Library
Low Level Functions, 877
Example - Using the Trace Functions
Low Level Functions, 873
Example about Sharing Names between Functions and
Methods
Scope Rules for Functions and Methods, 812
Examples
bignumber, 1209
PostgreSQL, 329
Exceptions
Control Structures - Second Style, 227
Control Structures - Third Style, 231
Execute Program Line by Line
The Trace Library and the Interactive Debugger, 884
Execute Query and Print Result
ODBC Functions, 312
executing code after the end of object access
Declarative Programming, 427
Executing code during code generation
Code Generator, 910
ExeFileName() Function
System Functions, 299
ExeFolder() Function
System Functions, 299
Exit
Control Structures - First Style, 221
Exit from two loops
Control Structures - First Style, 221
Exit/Loop inside sub functions
Control Structures - First Style, 222
Extension
Check Parameters Count, 894
Index 2027

10. Ring Documentation, Release 1.9
Check Parameters Type, 895
Display Error Message, 895
Fopen() and Fclose() Implementation, 896
Function Prototype, 896
Function Structure, 894
Get Parameters Values, 895
Introduction, 891
Module Organization, 893
MySQL_Columns() Implementation, 899
Return Value, 895
RING API - list Functions, 897
RING API - String Functions, 899
ring_ext.c, 892
ring_ext.h, 892
Shared Libraries, 900
Sin() Implementation, 896
Using RING_API_RETMANAGEDCPOINTER(),
901
Extensions in C/C++
How to contribute?, 185
Extract Zip File
RingZip, 509
Facebook Login
RingLibCurl, 505
factorial()
Stdlib Functions, 386
factors()
Stdlib Functions, 390
Fast Enough For Many Applications
Language Design, 39
Fclose()
Files, 286
Features
Introduction, 25
Feof()
Files, 289
Ferror()
Files, 289
FetchStockData Application
Applications developed in little hours, 4
Fexists()
Files, 291
Fflush()
Files, 287
Fgetc()
Files, 290
Fgetpos()
Files, 289
Fgets()
Files, 290
fibonacci()
Stdlib Functions, 387
Fifteen Puzzle Game 2
Applications developed in little hours, 5
File Class
Stdlib Classes, 413
File Hash
Security and Internet Functions, 339
file2list()
Stdlib Functions, 388
Files
Clearerr(), 289
Dir(), 285
Example, 291
Fclose(), 286
Feof(), 289
Ferror(), 289
Fexists(), 291
Fflush(), 287
Fgetc(), 290
Fgetpos(), 289
Fgets(), 290
Fopen(), 286
Fputc(), 290
Fputs(), 290
Fread(), 291
Freopen(), 287
Fseek(), 288
Fsetpos(), 289
Ftell(), 288
Fwrite(), 291
Introduction, 283
Numbers and Bytes, 293
Perror(), 289
Read File using Read(), 285
Remove(), 286
Rename(), 286
Rewind(), 288
Tempfile(), 288
Tempname(), 288
Ungetc(), 290
Write file using Write(), 285
filter()
Stdlib Functions, 384
Filtering using Expressions
Code Generator, 910
Find in files Application
What is new in Ring 1.8?, 58
Find SubString
Strings, 262
Find() and List of Objects
Object Oriented Programming, 352
First Application using RingLibuv
RingLibuv, 533
First-Class Functions
Functional Programming, 359
First-Class Lists
Index 2028