shithub: mc

ref: 0d7d70e5b1a4b5c7ae618d6d04fb30848b18c08f
dir: /lib/std/test/strbuf.myr/

use std

const main = {
	var sb
	var buf : byte[16]

	sb = std.mksb()
	std.assert(std.eq(std.sbpeek(sb), ""), "mismatched empty str\n")
	std.sbputs(sb, "hello")
	std.assert(std.eq(std.sbpeek(sb), "hello"), "mismatched hello\n")
	std.sbputs(sb, ", hello")
	std.assert(std.eq(std.sbpeek(sb), "hello, hello"), "mismatched double hello\n")
	std.sbtrim(sb, 7)
	std.assert(std.eq(std.sbpeek(sb), "hello, "), "mismatched trim\n")
	std.sbputs(sb, "world")
	std.assert(std.eq(std.sbpeek(sb), "hello, world"), "mismatched hello world\n")
	std.sbtrim(sb, -5)
	std.assert(std.eq(std.sbpeek(sb), "hello, "), "mismatched rtrim\n")
	std.sbputc(sb, '世')
	std.sbputc(sb, '界')
	std.assert(std.eq(std.sbpeek(sb), "hello, 世界"), "mismatched unicode\n")
	std.sbputb(sb, 10)
	std.assert(std.eq(std.sbpeek(sb), "hello, 世界\n"), "mismatched byte\n")

	sb = std.mkbufsb(buf[:])
	std.assert(std.sbputs(sb, "hello"), "failed to add hello\n") /* 5 characters */
	std.assert(std.sbputs(sb, "hello"), "failed to add hello\n") /* 10 characters */
	std.assert(std.sbputs(sb, "hello"), "failed to add hello\n") /* 15 characters */
	std.assert(!std.sbputs(sb, "hello"), "erronous success\n") /* 16 characters */
	std.assert(std.eq(std.sbpeek(sb), "hellohellohelloh"), "failed to copy as much as possible\n")
	std.sbtrim(sb, -1)
	std.assert(std.eq(std.sbpeek(sb), "hellohellohello"), "failed rtrim\n")
	std.sbputc(sb, '世')
	std.assert(std.eq(std.sbpeek(sb), "hellohellohello"), "modified overflowed putc\n")
	std.sbtrim(sb, -2)
	std.assert(std.eq(std.sbpeek(sb), "hellohellohel"), "failed rtrim\n")
	std.sbputc(sb, '世')
	std.assert(std.eq(std.sbpeek(sb), "hellohellohel世"), "failed to append with putc\n")
}