100 lines
2.9 KiB
Haxe
100 lines
2.9 KiB
Haxe
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/*
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* Copyright (C)2005-2019 Haxe Foundation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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/**
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A String buffer is an efficient way to build a big string by appending small
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elements together.
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Unlike String, an instance of StringBuf is not immutable in the sense that
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it can be passed as argument to functions which modify it by appending more
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values.
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**/
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class StringBuf {
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var b:String;
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/**
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The length of `this` StringBuf in characters.
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**/
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public var length(get, never):Int;
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/**
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Creates a new StringBuf instance.
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This may involve initialization of the internal buffer.
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**/
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public inline function new() {
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b = "";
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}
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inline function get_length():Int {
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return b.length;
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}
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/**
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Appends the representation of `x` to `this` StringBuf.
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The exact representation of `x` may vary per platform. To get more
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consistent behavior, this function should be called with
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Std.string(x).
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If `x` is null, the String "null" is appended.
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**/
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public inline function add<T>(x:T):Void {
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b += x;
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}
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/**
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Appends the character identified by `c` to `this` StringBuf.
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If `c` is negative or has another invalid value, the result is
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unspecified.
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**/
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public inline function addChar(c:Int):Void {
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b += String.fromCharCode(c);
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}
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/**
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Appends a substring of `s` to `this` StringBuf.
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This function expects `pos` and `len` to describe a valid substring of
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`s`, or else the result is unspecified. To get more robust behavior,
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`this.add(s.substr(pos,len))` can be used instead.
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If `s` or `pos` are null, the result is unspecified.
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If `len` is omitted or null, the substring ranges from `pos` to the end
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of `s`.
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**/
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public inline function addSub(s:String, pos:Int, ?len:Int):Void {
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b += (len == null ? s.substr(pos) : s.substr(pos, len));
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}
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/**
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Returns the content of `this` StringBuf as String.
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The buffer is not emptied by this operation.
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**/
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public inline function toString():String {
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return b;
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}
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}
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