stimcircuit 0.1.0

A Rust library for parsing quantum circuits in the Stim format.
Documentation 
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WHITESPACE = _{ (" " | "\t") }
COMMENT = _{ "#" ~ (!"\n" ~ ANY)* }

circuit = { SOI ~ line* ~ EOI }
line = { (block | instruction | "") ~ NEWLINE }
instruction = { ident ~ args? ~ targets }

targets = { target* }
target = { measurement_record | pauli_str | qubit }
measurement_record = { "rec" ~ "[" ~ "-" ~ num ~ "]" }
pauli_str = { negate? ~ pauli_num ~ ( "*" ~ pauli_num )* }
qubit = { negate? ~ num }

args = { "(" ~ arg ~ ("," ~ arg)* ~ ")" }
arg = { decimal | num }

block = { "REPEAT" ~ num ~ "{" ~ NEWLINE ~ body ~ "}" }
body = { line* }

ident = @{ (ASCII_ALPHA | "_") ~ (ASCII_ALPHA | ASCII_DIGIT | "_")* }
num = @{ ASCII_DIGIT+ }
decimal = @{ "-"? ~ num ~ "." ~ num }
pauli_num = @{ ("X" | "Y" | "Z") ~ num }
negate = @{ "!" }