vipsi - the friendly vip script interpreter

Operators

Boolean Or with Variable "||="

<num_var> ||= <number>

Operators: Boolean Or with Variable "||="
Operators: Boolean Or "||"
Boolean 'or
' of <variable> Operators: Boolean And with Variable "&&="
Operators: Bitwise And with Variable "&="
Operators: Bitwise And "&"
Operators: Boolean And "&&"
and
<value>.

Calculate result of Operators: Boolean Or with Variable "||="
Operators: Boolean Or "||"
boolean 'or
' Operators: Boolean And with Variable "&&="
Operators: Bitwise And with Variable "&="
Operators: Bitwise And "&"
Operators: Boolean And "&&"
and
store result in Glossary: Variable, var_refvariable.

Both Glossary: Operator
Glossary: Operand
operands
must be numeric. Flow control: if … thenIf any of both Vipsi command syntax: Arguments
Glossary: Arguments
arguments
is a Data Types: Text
Item selector "[]": Text
Glossary: text, text_val
text
, Flow control: if … then
Flow control: try … then
then
it is evaluated as Glossary: number, num_valnumber. Flow control: if … then
Flow control: if … then
If the
conversion fails Flow control: if … then
Flow control: try … then
then
an error is generated.

Boolean Vipsi command syntax: Operators
Operators
Glossary: Operator
operators
are pruning (skipping) Flow control: if … then
Flow control: try … then
the
second Vipsi command syntax: Arguments
Glossary: Arguments
argument
, Flow control: if … then
Flow control: if … then
if the
result is already defined by Flow control: if … then
Flow control: try … then
the
result of Flow control: if … then
Flow control: try … then
the
first Vipsi command syntax: Arguments
Glossary: Arguments
argument
. For boolean '||' List functions: thisthis means, Flow control: if … then
Flow control: if … then
if the
first Vipsi command syntax: Arguments
Glossary: Arguments
argument
is non-zero.

e.g.:

Instructions: var
How does VScript::Value() work?: Var*&
var
a = 0 a ||= 0 a ||= 1

Operators: Bitwise Not "~"
Operators: Boolean Negation "!"
Note
:
Operators: Assignment "="
Built-in operators: Assignments:
Assignment
Vipsi command syntax: Operators
Operators
Glossary: Operator
operators
Flow control: do … loopdo Operators: Bitwise Not "~"
Operators: Boolean Negation "!"
not
Flow control: returnreturn a result Glossary: Valuevalue. There are syntactical ambiguities with Flow control: if … then
Flow control: try … then
the
"=" Numeric functions: signsign e.g. in Literals: List literals
Lists and arrays: List literals
list literals
. List functions: thisThis also allows named items in other places, e.g. passing named Vipsi command syntax: Arguments
Glossary: Arguments
arguments
to Vipsi command syntax: Procedures
Data Types: Procedures
Glossary: Procedure
procedures
for a obj-C-like syntax. (planned for Flow control: if … then
Flow control: try … then
the
future)

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