Category |
Keywords |
note autumn 2007 |
Trolltech slightly
modified the language, the current version is 1.2.2, which is also in
BrainVoyager 1.9. The fields below refer to the previous versions of Qt
Script. The description of the language version 1.2.2. by Trolltech can
be found here.
One change is that arrays
can now also be used as associative arrays (kind of "hash maps").
There are now regular expressions (RegExp)
and the string
functions are being described.
Because the
changes are mainly extensions instead of changes, the previous descriptions
of Qt Script are (temporarily) still listed below. |
Array
handling |
Array
push()
unshift()
splice()
concat()
join()
toString()
reverse()
sort |
Assignment
operators |
Change variable (=), Add to variable (+=), Subtract from variable (-=),
Multiplies with variable (*=),
Divides by variable (/=),
Bit-wise AND (&=), Bit-wise
XOR (^=), Bit-wise OR
(|=),
Bit-wise left shift in bits (<<=),
Bit-wise sign-preserving right shift in bits (>>=),
Bit-wise zero-padding right shift in bits (>>=) |
Comments |
//
for
single line comments
/*...*/ for
multiple line comments |
Constants/Built-in
variables |
Infinity, NaN,
undefined, arguments, Application.argv[i] |
Control statements |
break, case,
catch, continue,
default, do,
else, for,
if, finally,
label, return,
switch, throw,
try, while,
with |
Dates/Times |
Date, getDay(),
getFullYear(), getHours(), getMilliseconds(), getMinutes(), getMonth(), getSeconds(), getTime(), getTimeZoneOffset()
Universal Coordinated Time (=Greenwich Mean Time, GMT)
getUTCDate(), getUTCDay(),
getUTCFullYear(), getUTCHours(), getUTCMilliseconds(), getUTCMinutes(), getUTCMonth(), getUTCSeconds(), getUTC()
Set functions
setDate(), setFullYear(),
setHours(), setMilliseconds(), setMinutes(), setMonth(), setSeconds(), setTime(), setUTCDate(), setUTCFullYear(), setUTCHours(), setUTCMilliseconds(), setUTCMinutes(), setUTCMonth(), setUTCSeconds(), setUTCTime()
parse(), toString(),
toLocaleString(), toUTCString |
Number |
toExponential( optDecimals ),
toFixed( optDecimals ),
toPrecision( optSignificanDigits
), toString() |
Declarations |
var, const,
class, this,
function |
Error
Handling |
try...catch, Built-in
Exceptions |
Graphical
components and user input |
MessageBox
TimedMessageBox
Dialog: exec(), newTab(), newColumn(), addSpace( nrOfSpaces ), add(
component )
CheckBox, ComboBox, GroupBox, LineEdit,
NumberEdit, RadioButton, SpinBox, TextEdit
TimeEdit, DateEdit
Input: getText(),
getNumber, getItem(), caption
FileDialog: getOpenFileName(
filter: String ), getSaveFileName(
filter: String ), getExistingDirectory(
dir: String ), getOpenFileNames(
dir: String, filter: String ) |
Math |
abs(), cos(),
acos(), sin(),
asin(), atan(),
atan2(), tan(),
ceil(), floor(),
round(), exp(),
log(), max(),
min(), pow(),
sqrt(), random(),
round() |
Objects |
Math, Qt,
System |
Data
types |
String, Boolean,
ByteArray, Color, Date,
Font, Function
(at runtime), Number,
Object, PixMap,
Point, Rect
RegExp, Size, Dir, File |
Operators |
Arithmetic
Addition (+), Pre/post-increment
(++), Subtraction (-)
Pre/post-decrement (--), Modulus
arithmetic (%)
Multiplication (*), Division
(/)
String concatenation (+) and (+=)
Comparison
Equality (==), Equality
of value and type (===), Inequality
(!=)
Inequality of value or type (!==)
Less Than (<=), Less Than or Equal To (<=)
Greater Than (>)
Greater Than or Equal To (>=)
Logical
Is, And (&&),
Or (||), Negation
(!)
Bitwise
Xor (^), And (&),
Or (|), Not
(~), Bitwise left shift
(<<) Bitwise sign propagating right shift (>>) Bitwise zero-operand
right shift (>>>)
Special
?: (expression ? resultIfTrue : resultIfFalse)
, (evaluation of 1st and 2nd operand, returns 2nd)
function (var variable = function( optArgs ) { Statements } )
in (property in Object,
returns boolean)
instanceof (object instanceof
type, returns boolean)
new (var instance = new Type( optArgs )
this (this.property)
typeof (typeof item) |
Built-in
functions |
connect( signallingObj, signal,
receivingObj, slot )
debug( expression )
eval( string ), isFinite(
expression ), isNaN(
expression ), startTimer(
interval, timeoutFunction )
killTimer( timerId ), killTimers(),
parseFloat( string ), parseInt( string, optBase )
System
getenv()
setenv( environmentVar, value )
unsetenv( environmentVar )
print( expression )
println( expression ) |
Script
Engine |
AboutQt |
String
functions |
charAt(),
charCodeAt(), endsWith(), find(), findRev(), fromCharCode(), indexOf(),
isEmpty(),
lastIndexOf(), toLowerCase(), toUpperCase(), substring(), substr(), startsWith(),
split(),
right(), left(), mid(), replace(), match(), lower(), upper(), toString(),
valueOf(), length |
Filesystem |
File
open( accessMode : Number ),
close(), remove(),
readByte(), read(), readLine(),
readLines(), writeByte( byte : Number ),
write( data : String, length :
Number ), writeLine(
data : String )
Directory
filePath( fileName : String ),
absFilePath( fileName : String
), cd( dirName : String
), cdUp(),
entryList( filter : String, filterSpec
: Number, sortSpec : Number ) , mkdir(
dirName : String ), mkdir(),
mkdirs( dirName : String ),
mkdirs(), rmdir(
dirName : String ), rmdir(),
rmdirs( dirName : String ),
rmdirs(),
fileExists( fileName : String
), setCurrent()
Process
start( env : String[] ), launch( stdin : String, env
: String[] ), readStdout(),
readSterr(), canReadLineStdout(),
canReadLineStderr(), readLineStdout(), readLineStderr(), tryTerminate(), kill(),
writeToStdin( buffer : String ), closeStdin() |
Regular
expressions |
RegExp(
) |