52 lines
936 B
V
52 lines
936 B
V
// Copyright (c) 2019 Alexander Medvednikov. All rights reserved.
|
|
// Use of this source code is governed by an MIT license
|
|
// that can be found in the LICENSE file.
|
|
|
|
module strings
|
|
|
|
pub struct Builder {
|
|
mut:
|
|
buf []byte
|
|
pub:
|
|
len int
|
|
initial_size int = 1
|
|
}
|
|
|
|
pub fn new_builder(initial_size int) Builder {
|
|
return Builder {
|
|
buf: make(0, initial_size, sizeof(byte))
|
|
initial_size: initial_size
|
|
}
|
|
}
|
|
|
|
pub fn (b mut Builder) write_b(data byte) {
|
|
b.buf << data
|
|
b.len++
|
|
}
|
|
|
|
pub fn (b mut Builder) write(s string) {
|
|
b.buf.push_many(s.str, s.len)
|
|
//b.buf << []byte(s) // TODO
|
|
b.len += s.len
|
|
}
|
|
|
|
pub fn (b mut Builder) writeln(s string) {
|
|
b.buf.push_many(s.str, s.len)
|
|
//b.buf << []byte(s) // TODO
|
|
b.buf << `\n`
|
|
b.len += s.len + 1
|
|
}
|
|
|
|
pub fn (b Builder) str() string {
|
|
return string(b.buf, b.len)
|
|
}
|
|
|
|
pub fn (b mut Builder) cut(n int) {
|
|
b.len -= n
|
|
}
|
|
|
|
pub fn (b mut Builder) free() {
|
|
b.buf = make(0, b.initial_size, 1)
|
|
b.len = 0
|
|
}
|