The Ring programming language version 1.10 book - Part 14 of 212

Ring Documentation, Release 1.10
• and
• or
• not
Now we have also the next operators
• &&
• ||
• !
Example:
if one() and two()
see "Test1 - Fail" + nl
else
see "Test1 - Pass" + nl
ok
if two() or one()
else
ok
if one() && two()
else
ok
if two() || one()
else
ok
func one return True
func two return False
Output:
Test1 - Pass
Test2 - Pass
Test3 - Pass
Test4 - Pass
8.18 Using ? to print expression then new line
It’s common to print new line after printing an expression, We can use the ? operator to do that!
Example:
? "Hello, World!"
for x = 1 to 10
8.18. Using ? to print expression then new line 98

? x
next
Output:
Hello, World!
1
2
3
4
5
6
7
8
9
10
8.18. Using ? to print expression then new line 99

CHAPTER
NINE
WHAT IS NEW IN RING 1.5?
In this chapter we will learn about the changes and new features in Ring 1.5 release.
9.1 List of changes and new features
Ring 1.5 comes with many new features!
• Video-Music-Player Application
• Windows StartUp Manager Application
• Calculator Application
• Better Ring Notepad
• Better StdLib
• Better WebLib
• Better RingQt
• Better Objects Library
• RingFreeGLUT Extension
• RingOpenGL Extension
• Better Code Generator for Extensions
• Better Documentation Generator for Extensions
• Ring VM - Tracing Functions
• Trace Library and Interactive Debugger
• More Syntax Flexibility
• Type Hints Library
• Better Quality
9.2 Video-Music-Player Application
The Video-Music-Player application is added to the Applications folder.
Screen Shot:
100

9.3 Windows StartUp Manager Application
The Windows StartUp Manager
URL : https://github.com/ring-lang/WinStartupManager
Screen Shot:
9.3. Windows StartUp Manager Application 101

9.4 Calculator Application
The Calculator application is added to the Applications folder.
Screen Shot:
9.5 Better Ring Notepad
1. Ring Notepad is updated to include some new styles and the Main File ToolBar
The idea of the Main File ToolBar is to determine the main file in the project When the project contains many source
code files
This way you can run the project ( Main File ) at any time while opening other files in the project without the need to
switch to the Main File to run the project.
To quickly use this feature
(Open the project main file)
Press Ctrl+Shift+M to set the current source code file as the main file
Open and modify other source code files in the project
To run the project (Main File) at any time press Ctrl+Shift+F5 (GUI) or Ctrl+Shift+D (Console)
Screen Shots:
9.4. Calculator Application 102

9.5. Better Ring Notepad 103

2. The output window is updated to display the new lines correctly and contains the “Clear” button.
Screen Shot:
(3) The Ring Notepad is updated to quickly open and switch between large ﬁles while preparing the functions/classes
lists in the background.
Screen Shot:
9.5. Better Ring Notepad 104

9.6 Better StdLib
New Functions
• Print2Str()
• ListAllFiles()
• SystemCmd()
1. The Print2Str() is a new function added to the StdLib
Example:
load "stdlib.ring"
world = "World!"
mystring = print2str("Hello, #{world} nIn Year n#{2000+17} n")
see mystring + nl
Output:
Hello, World!
In Year
2017
2. The ListAllFiles() is a new function added to the StdLib
Using this function we can quickly do a process on a group of ﬁles in a folder and it’s sub folders.
Example:
load "stdlib.ring"
aList = ListAllFiles("c:/ring/ringlibs","ring") # *.ring only
9.6. Better StdLib 105

aList = sort(aList)
see aList
Example:
load "stdlib.ring"
see listallfiles("b:/ring/ringlibs/weblib","") # All Files
3. The SystemCmd() is a new function added to the StdLib
The function will execute a system command like the System() function but will return the output in a string.
Example:
cYou = SystemCmd("whoami")
See "SystemCmd: whoami ====="+ nl + cYou +nl
Output:
SystemCmd: whoami =====
desktop-umbertoumberto
9.7 Better WebLib
The WebLib is updated to include the HTMLPage class
Using this class we can create HTML documents without printing the output to the standard output
So instead of using the WebLib in Web Applications only
We can use it in Console/GUI/Mobile Applications too
Example:
load "stdlib.ring"
load "weblib.ring"
import System.Web
func main
mypage = new HtmlPage {
h1 { text("Customers Report") }
Table
{
style = stylewidth("100%") + stylegradient(4)
TR
{
TD { WIDTH="10%" text("Customers Count : " ) }
TD { text (100) }
}
}
Table
{
TR
{
9.7. Better WebLib 106

TD { text("Name " ) }
TD { text("Age" ) }
TD { text("Country" ) }
TD { text("Job" ) }
TD { text("Company" ) }
}
for x = 1 to 100
TR
{
TD { text("Test" ) }
TD { text("30" ) }
TD { text("Egypt" ) }
TD { text("Sales" ) }
TD { text("Future" ) }
}
next
}
}
write("report.html",mypage.output())
Using this feature we can create reports quickly using WebLib & GUILib together
Example:
load "stdlib.ring"
load "weblib.ring"
load "guilib.ring"
import System.Web
import System.GUI
new qApp {
open_window(:CustomersReportController)
exec()
}
class CustomersReportController
oView = new CustomersReportView
func Start
CreateReport()
func CreateReport
mypage = new HtmlPage {
h1 { text("Customers Report") }
Table
{
TR
{
TD { WIDTH="10%"
text("Customers Count : " ) }
TD { text (100) }
}
}
Table
9.7. Better WebLib 107

The Ring programming language version 1.10 book - Part 14 of 212

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The Ring programming language version 1.10 book - Part 14 of 212