This expression separates a username into capital letters, small letters, digits, and symbols using their ASCII values.

Suppose:

ri!userName = "Appian@2026#AI"

Step 1 — Convert the string to ASCII

local!ascii: code(ri!userName)

How it works

The code() function converts every character into its ASCII value.

Example:

CharacterASCII

Output:

{65,112,112,105,97,110,64,50,48,50,54,35,65,73}

Step 2 — Extract Capital Letters

local!capitals: joinarray(

a!forEach(

items: local!ascii,

expression: if(

and(fv!item >= 65, fv!item <= 90),

char(fv!item),

{}

)

),

""

)

How it works

Checks whether the ASCII value is between:

65–90

These represent A–Z.

Matching characters are converted back using char().

Output:

"AAI"

Step 3 — Extract Small Letters

local!smalls: joinarray(

a!forEach(

items: local!ascii,

expression: if(

and(fv!item >= 97, fv!item <= 122),

char(fv!item),

{}

)

),

""

)

How it works

Checks whether the ASCII value is between:

97–122

These represent a–z.

Output:

"ppian"

Step 4 — Extract Digits

local!digits: joinarray(

a!forEach(

items: local!ascii,

expression: if(

and(fv!item >= 48, fv!item <= 57),

char(fv!item),

{}

)

),

""

)

How it works

Checks whether the ASCII value is between:

48–57

These represent 0–9.

Output:

"2026"

Step 5 — Extract Symbols

local!symbols: joinarray(

a!forEach(

items: local!ascii,

expression: if(

or(

and(fv!item >= 65, fv!item <= 90),

and(fv!item >= 97, fv!item <= 122),

and(fv!item >= 48, fv!item <= 57)

),

{},

char(fv!item)

)

),

""

)

How it works

If the character is:

A–Z
a–z
0–9

ignore it ({}).

Otherwise, convert it back to a character.

Output:

"@#"

Final Output

Capital Letters: AAI

Small Letters: ppian

Digits: 2026

Symbols: @#

ASCII Ranges Used

Flow Summary

Username

│

▼

code()

│

▼

ASCII Values

│

├── 65–90 → Capital Letters

├── 97–122 → Small Letters

├── 48–57 → Digits

└── Others → Symbols

│

▼

char() + joinarray()

│

▼

Capital Letters, Small Letters, Digits, Symbols