⚙️ Pseudocode Syntax Reference

The pseudocode tool in InfoRapid KnowledgeBase Builder allows you to generate flowcharts and decision trees fully automatically from a simple, readable text syntax. Instead of having to draw and connect every element manually, you simply write the logic as text.

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1. Basic Structure & Comments

• Line Endings: Statements do not require a trailing semicolon (;). Each statement is written on a new line.
• Comments: Are initiated with // and extend to the end of the line. Comments are automatically imported as node descriptions (tooltips) into the diagram.
• Example: A = A - 2 // Calculates the new value of A creates a command node labeled A = A - 2 with the tooltip text "Calculates the new value of A".

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2. Functions

A flowchart can be divided into multiple functions. Each function begins with the keyword function, followed by the name of the function, optional parameters in parentheses, and a block enclosed in curly braces { }.

function MyFunction(Parameter1) // Description of the function
{
    // Content of the function
    return
}

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3. Subroutine Calls (Functions)

Calling another function is declared with the keyword call. This creates a special "call" node (in the shape of an upward-pointing triangle) in the diagram.

call MyFunction(5) // Executes the sub-function

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4. Control Structures: Branches

If-Else

Creates a conditional branch (diamond shape). The connections for the "Yes" and "No" branches are automatically labeled according to the condition.

if A > 0 // Is A positive?
{
    A = A - 2 // Decrease A
}
else
{
    B = B + 2 // Increase B
}

Multiple Branching (Switch-Case)

Creates a branch based on the value of a variable or expression. Each case edge is labeled with the name of the respective case. Each case must be ended with break.

switch (PaymentMethod) // Select payment processing
{
    case CreditCard:
        AuthorizeCreditCard()
        break
    case PayPal:
        RedirectToPayPal()
        break
}

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5. Control Structures: Loops

While Loop

A pre-tested loop. The condition is checked before the loop execution. The loop node receives a hexagonal shape.

while A > 0 // Repeat as long as A is greater than 0
{
    A = A - 1
}

Do-While Loop

A post-tested loop. The loop body is executed at least once before the condition is checked at the end. The start node receives a parallelogram shape.

do
{
    A = A + 1
}
while (A < 100) // Check if the limit is reached

For Loop

A loop over a range of numbers. Supports the English keywords To and Step.

for N = 0 To 100 Step 3 // Count in steps of 3 from 0 to 100
{
    ProcessValue(N)
}

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6. Flow Control

• break: Terminates the current loop or switch block.
• continue: Jumps directly to the next loop iteration.
• return: Ends the execution of the current function and returns to the caller. This creates a circular "return" node in the diagram.