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const std = @import("std");
const Allocator = std.mem.Allocator;
const ArrayList = std.ArrayList;
const StringBuilder = @This();
pub const Error = std.mem.Allocator.Error;
pub const Writer = std.io.Writer(*StringBuilder, Error, writeFn);
data: ArrayList(u8),
pub fn init(allocator: std.mem.Allocator) StringBuilder {
return .{
.data = ArrayList(u8).init(allocator),
};
}
pub fn deinit(self: StringBuilder) void {
self.data.deinit();
}
pub fn append(self: *StringBuilder, char: u8) Error!void {
return self.data.append(char);
}
pub fn appendMany(self: *StringBuilder, chars: []const u8) Error!void {
return self.data.appendSlice(chars);
}
pub fn seeSlice(self: *StringBuilder) []const u8 {
return self.data.items;
}
pub fn toOwnedSlice(self: StringBuilder) []u8 {
return self.data.toOwnedSlice();
}
pub fn writer(self: *StringBuilder) Writer {
return Writer{ .context = self };
}
fn writeFn(self: *StringBuilder, chars: []const u8) Error!usize {
try self.appendMany(chars);
return chars.len;
}
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