@quick-game/cli
Version:
Command line interface for rapid qg development
44 lines • 1.6 kB
JavaScript
// Copyright 2020 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import * as Platform from '../../core/platform/platform.js';
export class TextCursor {
lineEndings;
offsetInternal;
lineNumberInternal;
columnNumberInternal;
constructor(lineEndings) {
this.lineEndings = lineEndings;
this.offsetInternal = 0;
this.lineNumberInternal = 0;
this.columnNumberInternal = 0;
}
advance(offset) {
this.offsetInternal = offset;
while (this.lineNumberInternal < this.lineEndings.length &&
this.lineEndings[this.lineNumberInternal] < this.offsetInternal) {
++this.lineNumberInternal;
}
this.columnNumberInternal = this.lineNumberInternal ?
this.offsetInternal - this.lineEndings[this.lineNumberInternal - 1] - 1 :
this.offsetInternal;
}
offset() {
return this.offsetInternal;
}
resetTo(offset) {
this.offsetInternal = offset;
this.lineNumberInternal =
Platform.ArrayUtilities.lowerBound(this.lineEndings, offset, Platform.ArrayUtilities.DEFAULT_COMPARATOR);
this.columnNumberInternal = this.lineNumberInternal ?
this.offsetInternal - this.lineEndings[this.lineNumberInternal - 1] - 1 :
this.offsetInternal;
}
lineNumber() {
return this.lineNumberInternal;
}
columnNumber() {
return this.columnNumberInternal;
}
}
//# sourceMappingURL=TextCursor.js.map