60 lines
967 B
V
60 lines
967 B
V
// Copyright (c) 2019-2021 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 mut:
|
|
len int
|
|
initial_size int = 1
|
|
}
|
|
|
|
pub fn new_builder(initial_size int) Builder {
|
|
return Builder{[]byte{cap: initial_size}, 0, initial_size}
|
|
}
|
|
|
|
pub fn (mut b Builder) write_b(data byte) {
|
|
b.buf << data
|
|
}
|
|
|
|
pub fn (mut b Builder) write(data []byte) ?int {
|
|
if data.len == 0 {
|
|
return 0
|
|
}
|
|
b.buf << data
|
|
return data.len
|
|
}
|
|
|
|
pub fn (b &Builder) byte_at(n int) byte {
|
|
return b.buf[n]
|
|
}
|
|
|
|
pub fn (mut b Builder) write_string(s string) {
|
|
if s.len == 0 {
|
|
return
|
|
}
|
|
|
|
for c in s {
|
|
b.buf << c
|
|
}
|
|
}
|
|
|
|
pub fn (mut b Builder) writeln(s string) {
|
|
if s.len > 0 {
|
|
b.write_string(s)
|
|
}
|
|
|
|
b.buf << 10
|
|
}
|
|
|
|
pub fn (mut b Builder) str() string {
|
|
s := ''
|
|
|
|
#for (const c of b.val.buf.arr)
|
|
#s.str += String.fromCharCode(+c)
|
|
|
|
return s
|
|
}
|