diff options
| -rw-r--r-- | std/fmt/index.zig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/std/fmt/index.zig b/std/fmt/index.zig index 6d23eebd0b..8e34bd43c4 100644 --- a/std/fmt/index.zig +++ b/std/fmt/index.zig @@ -350,6 +350,11 @@ pub fn formatText( comptime var width = 0; if (fmt.len > 1) width = comptime (parseUnsigned(usize, fmt[1..], 10) catch unreachable); return formatBuf(bytes, width, context, Errors, output); + } else if ((fmt[0] == 'x') or (fmt[0] == 'X') ) { + for (bytes) |c| { + try formatInt(c, 16, fmt[0] == 'X', 0, context, Errors, output); + } + return; } else @compileError("Unknown format character: " ++ []u8{fmt[0]}); } return output(context, bytes); @@ -1271,6 +1276,12 @@ test "fmt.format" { try testFmt("E.Two", "{}", inst); } + //print bytes as hex + { + const some_bytes = "\xCA\xFE\xBA\xBE"; + try testFmt("lowercase: cafebabe\n", "lowercase: {x}\n", some_bytes); + try testFmt("uppercase: CAFEBABE\n", "uppercase: {X}\n", some_bytes); + } } fn testFmt(expected: []const u8, comptime template: []const u8, args: ...) !void { |