---
source: src/main.rs
expression: compiled
input_file: test-data/lua5.2-tests/strings.lua
---
print('testing strings and string library');
assert('alo' < 'alo1');
assert('' < 'a');
assert('alo\0alo' < 'alo\0b');
assert('alo\0alo\0\0' > 'alo\0alo\0');
assert('alo' < 'alo\0');
assert('alo\0' > 'alo');
assert('\0' < '\1');
assert('\0\0' < '\0\1');
assert('\1\0a\0a' <= '\1\0a\0a');
assert(!('\1\0a\0b' <= '\1\0a\0a'));
assert('\0\0\0' < '\0\0\0\0');
assert(!('\0\0\0\0' < '\0\0\0'));
assert('\0\0\0' <= '\0\0\0\0');
assert(!('\0\0\0\0' <= '\0\0\0'));
assert('\0\0\0' <= '\0\0\0');
assert('\0\0\0' >= '\0\0\0');
assert(!('\0\0b' < '\0\0a\0'));
print('+');
assert(string.sub("123456789", 2, 4) == "234");
assert(string.sub("123456789", 7) == "789");
assert(string.sub("123456789", 7, 6) == "");
assert(string.sub("123456789", 7, 7) == "7");
assert(string.sub("123456789", 0, 0) == "");
assert(string.sub("123456789", -10, 10) == "123456789");
assert(string.sub("123456789", 1, 9) == "123456789");
assert(string.sub("123456789", -10, -20) == "");
assert(string.sub("123456789", -1) == "9");
assert(string.sub("123456789", -4) == "6789");
assert(string.sub("123456789", -6, -4) == "456");
if !_no32 {
    assert(string.sub("123456789", -2 ^ 31, -4) == "123456");
    assert(string.sub("123456789", -2 ^ 31, 2 ^ 31 - 1) == "123456789");
    assert(string.sub("123456789", -2 ^ 31, -2 ^ 31) == "");
}
assert(string.sub("\000123456789", 3, 5) == "234");
assert(("\000123456789")::sub(8) == "789");
print('+');
assert(string.find("123456789", "345") == 3);
a, b = string.find("123456789", "345")
assert(string.sub("123456789", a, b) == "345");
assert(string.find("1234567890123456789", "345", 3) == 3);
assert(string.find("1234567890123456789", "345", 4) == 13);
assert(string.find("1234567890123456789", "346", 4) == nil);
assert(string.find("1234567890123456789", ".45", -9) == 13);
assert(string.find("abcdefg", "\0", 5, 1) == nil);
assert(string.find("", "") == 1);
assert(string.find("", "", 1) == 1);
assert(!string.find("", "", 2));
assert(string.find('', 'aaa', 1) == nil);
assert(('alo(.)alo')::find('(.)', 1, 1) == 4);
print('+');
assert(string.len("") == 0);
assert(string.len("\0\0\0") == 3);
assert(string.len("1234567890") == 10);
assert(#"" == 0);
assert(#"\0\0\0" == 3);
assert(#"1234567890" == 10);
assert(string.byte("a") == 97);
assert(string.byte("\xe4") > 127);
assert(string.byte(string.char(255)) == 255);
assert(string.byte(string.char(0)) == 0);
assert(string.byte("\0") == 0);
assert(string.byte("\0\0alo\0x", -1) == string.byte('x'));
assert(string.byte("ba", 2) == 97);
assert(string.byte("\n\n", 2, -1) == 10);
assert(string.byte("\n\n", 2, 2) == 10);
assert(string.byte("") == nil);
assert(string.byte("hi", -3) == nil);
assert(string.byte("hi", 3) == nil);
assert(string.byte("hi", 9, 10) == nil);
assert(string.byte("hi", 2, 1) == nil);
assert(string.char() == "");
assert(string.char(0, 255, 0) == "\0\255\0");
assert(string.char(0, string.byte("\xe4"), 0) == "\0\xe4\0");
assert(string.char(string.byte("\xe4l\0óu", 1, -1)) == "\xe4l\0óu");
assert(string.char(string.byte("\xe4l\0óu", 1, 0)) == "");
assert(string.char(string.byte("\xe4l\0óu", -10, 100)) == "\xe4l\0óu");
print('+');
assert(string.upper("ab\0c") == "AB\0C");
assert(string.lower("\0ABCc%$") == "\0abcc%$");
assert(string.rep('teste', 0) == '');
assert(string.rep('tés\00tê', 2) == 'tés\0têtés\000tê');
assert(string.rep('', 10) == '');
assert(string.rep('teste', 0, 'xuxu') == '');
assert(string.rep('teste', 1, 'xuxu') == 'teste');
assert(string.rep('\1\0\1', 2, '\0\0') == '\1\0\1\0\0\1\0\1');
assert(string.rep('', 10, '.') == string.rep('.', 9));
if !_no32 {
    assert(!pcall(string.rep, "aa", 2 ^ 30));
    assert(!pcall(string.rep, "", 2 ^ 30, "aa"));
}
assert(string.reverse("") == "");
assert(string.reverse("\0\1\2\3") == "\3\2\1\0");
assert(string.reverse("\0001234") == "4321\0");
for i = 0, 30 {
    assert(string.len(string.rep('a', i)) == i);
}
assert(type(tostring(nil)) == 'string');
assert(type(tostring(12)) == 'string');
assert('' .. 12 == '12' && type(12 .. '') == 'string');
assert(string.find(tostring({}), 'table:'));
assert(string.find(tostring(print), 'function:'));
assert(tostring(1234567890123) == '1234567890123');
assert(#tostring('\0') == 1);
assert(tostring(true) == "true");
assert(tostring(false) == "false");
print('+');
x = '"ílo"\n\\'
assert(string.format('%q%s', x, x) == '"\\"ílo\\"\\\n\\\\""ílo"\n\\');
assert(string.format('%q', "\0") == `"\0"`);
assert(load(string.format('return %q', x))() == x);
x = "\0\1\0023\5\0009"
assert(load(string.format('return %q', x))() == x);
assert(string.format("\0%c\0%c%x\0", string.byte("\xe4"), string.byte("b"), 140) == "\0\xe4\0b8c\0");
assert(string.format('') == "");
assert(string.format("%c", 34) .. string.format("%c", 48) .. string.format("%c", 90) .. string.format("%c", 100) == string.format("%c%c%c%c", 34, 48, 90, 100));
assert(string.format("%s\0 is not \0%s", 'not be', 'be') == 'not be\0 is not \0be');
assert(string.format("%%%d %010d", 10, 23) == "%10 0000000023");
assert(tonumber(string.format("%f", 10.3)) == 10.3);
x = string.format('"%-50s"', 'a')
assert(#x == 52);
assert(string.sub(x, 1, 4) == '"a  ');
assert(string.format("-%.20s.20s", string.rep("%", 2000)) == "-" .. string.rep("%", 20) .. ".20s");
assert(string.format('"-%20s.20s"', string.rep("%", 2000)) == string.format("%q", "-" .. string.rep("%", 2000) .. ".20s"));
assert(string.format("%s %s", nil, true) == "nil true");
assert(string.format("%s %.4s", false, true) == "false true");
assert(string.format("%.3s %.3s", false, true) == "fal tru");
local m = setmetatable({}, {
    __tostring = fn () {
        return "hello"
    }
})
assert(string.format("%s %.10s", m, m) == "hello hello");
assert(string.format("%x", 0.3) == "0");
assert(string.format("%02x", 0.1) == "00");
assert(string.format("%08X", 2 ^ 32 - 1) == "FFFFFFFF");
assert(string.format("%+08d", 2 ^ 31 - 1) == "+2147483647");
assert(string.format("%+08d", -2 ^ 31) == "-2147483648");
assert(string.len(string.format('%99.99f', -1e308)) >= 100);
if !_nolonglong {
    print("testing large numbers for format");
    assert(string.format("%8x", 2 ^ 52 - 1) == "fffffffffffff");
    assert(string.format("%d", -1) == "-1");
    assert(tonumber(string.format("%u", 2 ^ 62)) == 2 ^ 62);
    assert(string.format("%8x", 0xffffffff) == "ffffffff");
    assert(string.format("%8x", 0x7fffffff) == "7fffffff");
    assert(string.format("%d", 2 ^ 53) == "9007199254740992");
    assert(string.format("%d", -2 ^ 53) == "-9007199254740992");
    assert(string.format("0x%8X", 0x8f000003) == "0x8F000003");
    local x = 2 ^ 64 - 2 ^ (64 - 53)
    assert(x == 0xfffffffffffff800);
    assert(tonumber(string.format("%u", x)) == x);
    assert(tonumber(string.format("0X%x", x)) == x);
    assert(string.format("%x", x) == "fffffffffffff800");
    assert(string.format("%d", x / 2) == "9223372036854774784");
    assert(string.format("%d", -x / 2) == "-9223372036854774784");
    assert(string.format("%d", -2 ^ 63) == "-9223372036854775808");
    assert(string.format("%x", 2 ^ 63) == "8000000000000000");
}
if !_noformatA {
    print("testing 'format %a %A'");
    assert(string.format("%.2a", 0.5) == "0x1.00p-1");
    assert(string.format("%A", 0x1fffffffffffff) == "0X1.FFFFFFFFFFFFFP+52");
    assert(string.format("%.4a", -3) == "-0x1.8000p+1");
    assert(tonumber(string.format("%a", -0.1)) == -0.1);
}
local fn check(fmt, msg) {
    local s, err = pcall(string.format, fmt, 10)
    assert(!s && string.find(err, msg));
}
local aux = string.rep('0', 600)
check("%100.3d", "too long");
check("%1" .. aux .. ".3d", "too long");
check("%1.100d", "too long");
check("%10.1" .. aux .. "004d", "too long");
check("%t", "invalid option");
check("%" .. aux .. "d", "repeated flags");
check("%d %d", "no value");
assert(!pcall(string.format, "%d", 2 ^ 63));
assert(!pcall(string.format, "%x", 2 ^ 64));
assert(!pcall(string.format, "%x", -2 ^ 64));
assert(!pcall(string.format, "%x", -1));
assert(load("return 1\n--comentário sem EOL no final")() == 1);
assert(table.concat({}) == "");
assert(table.concat({}, 'x') == "");
assert(table.concat({
    '\0', 
    '\0\1', 
    '\0\1\2'
}, '.\0.') == "\0.\0.\0\1.\0.\0\1\2");
local a = {}
for i = 1, 3000 {
    a[(i)] = "xuxu"
}
assert(table.concat(a, "123") .. "123" == string.rep("xuxu123", 3000));
assert(table.concat(a, "b", 20, 20) == "xuxu");
assert(table.concat(a, "", 20, 21) == "xuxuxuxu");
assert(table.concat(a, "x", 22, 21) == "");
assert(table.concat(a, "3", 2999) == "xuxu3xuxu");
if !_no32 {
    assert(table.concat({}, "x", 2 ^ 31 - 1, 2 ^ 31 - 2) == "");
    assert(table.concat({}, "x", -2 ^ 31 + 1, -2 ^ 31) == "");
    assert(table.concat({}, "x", 2 ^ 31 - 1, -2 ^ 31) == "");
    assert(table.concat({
        2 ^ 31 - 1 = "alo"
    }, "x", 2 ^ 31 - 1, 2 ^ 31 - 1) == "alo");
}
assert(!pcall(table.concat, {
    "a", 
    "b", 
    {}
}));
a = {
    "a", 
    "b", 
    "c"
}
assert(table.concat(a, ",", 1, 0) == "");
assert(table.concat(a, ",", 1, 1) == "a");
assert(table.concat(a, ",", 1, 2) == "a,b");
assert(table.concat(a, ",", 2) == "b,c");
assert(table.concat(a, ",", 3) == "c");
assert(table.concat(a, ",", 4) == "");
if !_port {
    local locales = {
        "ptb", 
        "ISO-8859-1", 
        "pt_BR"
    }
    local fn trylocale(w) {
        for i = 1, #locales {
            if os.setlocale(locales[(i)], w) {
                return true
            }
        }
        return false
    }
    if !trylocale("collate") {
        print("locale not supported");
    } else {
        assert("alo" < "álo" && "álo" < "amo");
    }
    if !trylocale("ctype") {
        print("locale not supported");
    } else {
        assert(load("a = 3.4"));
        assert(!load("á = 3.4"));
        assert(string.gsub("áéíóú", "%a", "x") == "xxxxx");
        assert(string.gsub("áÁéÉ", "%l", "x") == "xÁxÉ");
        assert(string.gsub("áÁéÉ", "%u", "x") == "áxéx");
        assert(string.upper("áÁé{xuxu}ção") == "ÁÁÉ{XUXU}ÇÃO");
    }
    os.setlocale("C");
    assert(os.setlocale() == 'C');
    assert(os.setlocale(nil, "numeric") == 'C');
}
print('OK');