61 lines
985 B
V
61 lines
985 B
V
// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved.
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// Use of this source code is governed by an MIT license
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// that can be found in the LICENSE file.
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module strings
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pub struct Builder {
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mut:
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buf []byte
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pub mut:
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len int
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initial_size int = 1
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}
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pub fn new_builder(initial_size int) Builder {
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return Builder{[]byte{cap: initial_size}, 0, initial_size}
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}
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pub fn (mut b Builder) write_b(data byte) {
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b.buf << data
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}
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pub fn (mut b Builder) write(data []byte) ?int {
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if data.len == 0 {
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return 0
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}
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b.buf << data
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return data.len
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}
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pub fn (b &Builder) byte_at(n int) byte {
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return b.buf[n]
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}
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pub fn (mut b Builder) write_string(s string) {
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if s.len == 0 {
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return
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}
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for c in s {
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b.buf << c
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}
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}
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pub fn (mut b Builder) writeln(s string) {
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if s.len > 0 {
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b.write_string(s)
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}
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b.buf << 10
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}
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pub fn (mut b Builder) str() string {
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b.buf << byte(0)
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s := ''
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#for (const c of b.val.buf.arr)
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#s.str += String.fromCharCode(+c)
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return s
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}
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