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Filename : system
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# ------------------------------------------------------------------
#
#    Copyright (C) 2025 Alexandre Pujol <alexandre@pujol.io>
#
#    This program is free software; you can redistribute it and/or
#    modify it under the terms of version 2 of the GNU General Public
#    License published by the Free Software Foundation.
#
# ------------------------------------------------------------------

# Any digit
@{d}=[0-9]

# Any letter
@{l}=[a-zA-Z]

# Single alphanumeric character
@{c}=[0-9a-zA-Z]

# Word character: matches any letter, digit or underscore.
@{w}=[a-zA-Z0-9_]

# Single hexadecimal character
@{h}=[0-9a-fA-F]

# Integer up to 10 digits (0-9999999999)
@{int}=@{d}{@{d},}{@{d},}{@{d},}{@{d},}{@{d},}{@{d},}{@{d},}{@{d},}{@{d},}

# hexadecimal, alphanumeric and word up to 64 characters
@{hex}=@{h}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}{@{h},}
@{rand}=@{c}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}{@{c},}
@{word}=@{w}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}{@{w},}

# Unsigned integer over 8 bits (0...255)
@{u8}=[0-9]{[0-9],} 1[0-9][0-9] 2[0-4][0-9] 25[0-5]

# Unsigned integer over 16 bits (0...65,535 5 digits)
@{u16}={@{d},[1-9]@{d},[1-9][@{d}@{d},[1-9]@{d}@{d}@{d},[1-6]@{d}@{d}@{d}@{d}}

# Unsigned integer over 32 bits (0...4,294,967,295 10 digits)
@{u32}={@{d},[1-9]@{d},[1-9]@{d}@{d},[1-9]@{d}@{d}@{d},[1-9]@{d}@{d}@{d}@{d},[1-9]@{d}@{d}@{d}@{d}@{d},[1-9]@{d}@{d}@{d}@{d}@{d}@{d},[1-9]@{d}@{d}@{d}@{d}@{d}@{d}@{d},[1-9]@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d},[1-4]@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}}

# Unsigned integer over 64 bits (0...18,446,744,073,709,551,615 20 digits).
@{u64}={@{d},[1-9]@{d},[1-9]@{d}@{d},[1-9]@{d}@{d}@{d},[1-9]@{d}@{d}@{d}@{d},[1-9]@{d}@{d}@{d}@{d}@{d},[1-9]@{d}@{d}@{d}@{d}@{d}@{d},[1-9]@{d}@{d}@{d}@{d}@{d}@{d}@{d},[1-9]@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d},[1-9]@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d},[1-9]@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d},[1-9]@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d},[1-9]@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d},[1-9]@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d},[1-9]@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d},[1-9]@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d},[1-9]@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d},[1-9]@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d},[1-9]@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d},1@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}@{d}}

# Any x digits characters
@{int2}=@{d}@{d}
@{int4}=@{int2}@{int2}
@{int6}=@{int4}@{int2}
@{int8}=@{int4}@{int4}
@{int9}=@{int8}@{d}
@{int10}=@{int8}@{int2}
@{int12}=@{int8}@{int4}
@{int15}=@{int8}@{int4}@{int2}@{d}
@{int16}=@{int8}@{int8}
@{int32}=@{int16}@{int16}
@{int64}=@{int32}@{int32}

# Any x hexadecimal characters
@{hex2}=@{h}@{h}
@{hex4}=@{hex2}@{hex2}
@{hex6}=@{hex4}@{hex2}
@{hex8}=@{hex4}@{hex4}
@{hex9}=@{hex8}@{h}
@{hex10}=@{hex8}@{hex2}
@{hex12}=@{hex8}@{hex4}
@{hex15}=@{hex8}@{hex4}@{hex2}@{h}
@{hex16}=@{hex8}@{hex8}
@{hex32}=@{hex16}@{hex16}
@{hex38}=@{hex32}@{hex6}
@{hex64}=@{hex32}@{hex32}

# Any x alphanumeric characters
@{rand2}=@{c}@{c}
@{rand4}=@{rand2}@{rand2}
@{rand6}=@{rand4}@{rand2}
@{rand8}=@{rand4}@{rand4}
@{rand9}=@{rand8}@{c}
@{rand10}=@{rand8}@{rand2}
@{rand12}=@{rand8}@{rand4}
@{rand15}=@{rand8}@{rand4}@{rand2}@{c}
@{rand16}=@{rand8}@{rand8}
@{rand32}=@{rand16}@{rand16}
@{rand64}=@{rand32}@{rand32}

# Any x word characters
@{word2}=@{w}@{w}
@{word4}=@{word2}@{word2}
@{word6}=@{word4}@{word2}
@{word8}=@{word4}@{word4}
@{word9}=@{word8}@{w}
@{word10}=@{word8}@{word2}
@{word12}=@{word8}@{word4}
@{word15}=@{word8}@{word4}@{word2}@{w}
@{word16}=@{word8}@{word8}
@{word32}=@{word16}@{word16}
@{word64}=@{word32}@{word32}

# Shortcut for PCI bus (e.g., /sys/devices/@{pci_bus}/**)
@{pci_bus}=pci@{hex4}:@{hex2}

include if exists <tunables/system.d>