Function charEscape [src]

Print as escaped contents of a single-quoted string.

Prototype

pub fn charEscape(codepoint: u21, w: *Writer) Writer.Error!void

Parameters

codepoint: u21w: *Writer

Source

  pub fn charEscape(codepoint: u21, w: *Writer) Writer.Error!void {
    switch (codepoint) {
        '\n' => try w.writeAll("\\n"),
        '\r' => try w.writeAll("\\r"),
        '\t' => try w.writeAll("\\t"),
        '\\' => try w.writeAll("\\\\"),
        '\'' => try w.writeAll("\\'"),
        '"', ' ', '!', '#'...'&', '('...'[', ']'...'~' => try w.writeByte(@intCast(codepoint)),
        else => {
            if (std.math.cast(u8, codepoint)) |byte| {
                try w.writeAll("\\x");
                try w.printInt(byte, 16, .lower, .{ .width = 2, .fill = '0' });
            } else {
                try w.writeAll("\\u{");
                try w.printInt(codepoint, 16, .lower, .{});
                try w.writeByte('}');
            }
        },
    }
}  