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2.1 Conventions Used in this Handbook
'''CONTENTS'''
The following notation conventions are used in this Handbook:
----
KEYWORDS
Capital letters indicate NS Basic/App Studio keywords and other text that must be typed exactly as shown. For the purposes of this manual, uppercase text indicates a required part of the Statement syntax. NS Basic/App Studio is case-insensitive: keywords are accepted with either uppercase letters, lowercase letters, or any mixture of the two. A keyword such as PRINT may be entered into your programs as print, Print, or PRINT.
placeholders
Italic text indicates a placeholder for types of information that you must supply. In the following Statement, expression is italicized to show that the EXECUTE statement requires an expression:
EXECUTE expression
    Example
This Monaco typeface indicates example program code and information that is printed on your NS Basic/App Studio screen. The following example shows a line from an NS Basic/App Studio program:
PRINT "Hello World!"


[Optional]
[[Introduction|1. Introduction]]
Brackets indicate that the enclosed items are optional. In the following example, brackets are used to show that entering a second item to display on the screen is optional for the PRINT statement:
PRINT expression1 [ ,expression2 ]
Both of these PRINT statements are legal, since PRINT accepts up to 20 expressions:
PRINT "Hello"
PRINT "Hello","World"


|
2. AppStudio Concepts
The vertical bar indicates that the items are mutually exclusive. In the following example the bar indicates that the LEN function can either be used with a string or a variable name:
 
LEN(string | variable)
:[[Conventions Used in this Handbook|2.1 Conventions Used in this Handbook]]
2.2 The Elements of an NS Basic/App Studio Program
 
A program in NS Basic/App Studio is a set of Statements. Each NS Basic/App Studio program line may consist of the following elements:
:[[The_Elements_of_an_NSB/App_Studio_Program| 2.2 Statements and Variables]]
KEYWORD arguments 'comment
 
A KEYWORD is a word from the language that NS Basic/App Studio understands. Examples are PRINT, INPUTBOX and IF. The Statement and its arguments determine what action (if any) will be taken by NS Basic/App Studio when the line is executed.
:[[Expressions and Operators|2.3 Expressions and Operators]]
Any text following ' on a line is a comment, and is ignored by NS Basic/App Studio.
 
2.2.1 Multi-Line Statements
:[[Function and Sub Procedures|2.4 Function and Sub Procedures]]
Each NS Basic/App Studio statement normally ends at the end of the statement line. If you have a very complex statement the line can be very long. This can make your programs difficult to read. You may split long statements by using the line-continuation sequence, a space followed by an underscore, ( _) at the end of the
 
:[[Projects, Forms, and Controls|2.5 Projects, Forms, and Controls]]
 
3. Using AppStudio
 
:[[Menu Options|3.1 Menu Options]]
 
:[[Deploy Bar|3.2 Deploy Bar]]
 
:[[Toolbox|3.3 Toolbox]]
 
:[[Design Screen|3.4 Design Screen]]
 
:[[Project Explorer|3.5 Project Explorer]]
 
:[[Properties Window|3.6 Properties Window]]
 
:[[Status Bar|3.7 Status Bar]]
 
:[[Code Window|3.8 Code Window]]
 
:[[Preferences|3.9 Preferences]]
 
:[[Build Native App|3.10 Build Native App]]
 
:[[Testing and Deploying|3.11 Testing and Deploying]]
 
:[[About Screen|3.12 About Screen]]
 
:[[Find/Replace|3.13 Find/Replace]]
 
:[[New Project Dialog|3.14 New Project]]
 
:[[Open Sample Dialog|3.15 Open Sample Project]]
 
:[[Wiki|3.15 Wiki]]
 
[[language_reference|4. Language Reference]]
 
[[language_reference#Controls|5. Controls Reference]]
 
[[Advanced Topics|6. Advanced Topics]]
 
[[Appendix|Appendix A: Constants]]
 
[[Appendix#B. Specifications|Appendix B: Specifications]]

Revision as of 23:12, 31 March 2014