Vital.sandbox - string.format

local result = string.format(format, ...)

Type	Name	Description
`string`	format	Format string containing specifiers Refer Specifiers section
`...`	...	Values to be formatted according to the format string

Type	Name	Description
`string`	result	Formatted string

Specifier	Description
`%d` / `%i`	Signed decimal integer
`%u`	Unsigned decimal integer
`%o`	Unsigned octal
`%x`	Unsigned hexadecimal (lowercase)
`%X`	Unsigned hexadecimal (uppercase)
`%f`	Decimal floating point
`%e`	Scientific notation (lowercase)
`%E`	Scientific notation (uppercase)
`%g`	Shortest of %e or %f
`%G`	Shortest of %E or %f
`%c`	Character (from byte value)
`%s`	String
`%q`	Quoted string
`%%`	Literal percent sign

Format a basic string

local str = string.format("Hello %s", "World")

engine.print("info", str) --'Hello World'

Format an integer

local num = string.format("Number: %d", 42)

engine.print("info", num) --'Number: 42'

Format multiple values in one string

local result = string.format("%d + %d = %d", 5, 3, 8)

engine.print("info", result) --'5 + 3 = 8'

Format a float with fixed decimal precision

local pi = string.format("Pi: %.2f", math.pi)

engine.print("info", pi) --'Pi: 3.14'

Format a float with more decimal places

local precise = string.format("%.5f", math.pi)

engine.print("info", precise) --'3.14159'

Pad an integer with leading zeros

local padded = string.format("%05d", 42)

engine.print("info", padded) --'00042'

Format a number as uppercase hexadecimal

local hex = string.format("0x%X", 255)

engine.print("info", hex) --'0xFF'

Format a number as lowercase hexadecimal

local hexLower = string.format("0x%x", 255)

engine.print("info", hexLower) --'0xff'

Format a number in scientific notation

local sci = string.format("%e", 1234.5)

engine.print("info", sci) --'1.234500e+03'

Format a character from a byte value

local char = string.format("%c", 65)

engine.print("info", char) --'A'

Right-align a string within a fixed width

local aligned = string.format("%10s", "right")

engine.print("info", aligned) --'     right'

Left-align a string within a fixed width

local leftAligned = string.format("%-10s", "left")

engine.print("info", leftAligned) --'left     '

Format a quoted string with escaped characters

local quoted = string.format("%q", "hello\nworld")

engine.print("info", quoted) --'"hello\nworld"'

Combine multiple format specifiers

local info = string.format("Name: %s, Age: %d, Score: %.1f%%", "Alice", 25, 95.5)

engine.print("info", info) --'Name: Alice, Age: 25, Score: 95.5%'

Format a number as octal

local oct = string.format("%o", 8)

engine.print("info", oct) --'10'

Include a literal percent sign

local percent = string.format("Progress: 100%%")

engine.print("info", percent) --'Progress: 100%'

string.format