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use std
const check = {expected, fmt, args : ...
var buf : byte[2048]
var sl, ap
ap = std.vastart(&args)
sl = std.bfmtv(buf[:], fmt, &ap)
if !std.sleq(expected, sl)
std.fatal("mismatched fmt: got \"{}\", expected \"{}\"\n", sl, expected)
;;
}
const main = {
check(" abcd", "{w=10}", "abcd")
check("00000bdcae", "{p=0,w=10}", "bdcae")
check("abcdefghijkl", "{p=0,w=10}", "abcdefghijkl")
check("a", "{w=0,p=1}", "a")
check(" 10", "{w=10}", 10)
check("0000000010", "{p=0,w=10}", 10)
check("4294967295", "{p=0,w=10}", -1 castto(uint))
check("-000000001", "{p=0,w=10}", -1)
check("xxxxxxxx-1", "{p=x,w=10}", -1)
check(" -1", "{w=10}", -1)
check("100000" , "{3}", 100000)
check("foobarbaz", "{}bar{}", "foo", "baz")
check("{}barbaz", "{{}}bar{}", "baz")
check("{barbaz}", "{{bar{}}}", "baz")
check("abcd", "{}", "abcd")
check("123", "{}", 123)
check("7b", "{x}", 123)
check("0x7b", "0x{x}", 123)
}
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