File indexing completed on 2024-05-19 04:00:11

 /*
     This file is part of the Kate project within KDE.
     SPDX-FileCopyrightText: 2009-2018 Dominik Haumann <dhaumann@kde.org>
 
     SPDX-License-Identifier: MIT
 */
 
 // required katepart js libraries
 require ("cursor.js");
 
 /**
  * Prototype Range.
  */
 function Range() {
 
   if (arguments.length === 0) {
     return new Range(0, 0, 0, 0);
   }
 
   if (arguments.length === 1 && typeof arguments[0] == "object") {
     // assume: range = new Range(otherRange);
     return arguments[0].clone();
   }
 
   if (arguments.length === 2 && typeof arguments[0] == "object"
                              && typeof arguments[1] == "object") {
     // assume: range = new Range(startCursor, endCursor);
     this.start = arguments[0].clone();
     this.end = arguments[1].clone();
   } else if (arguments.length === 4 && typeof arguments[0] == "number"
                                     && typeof arguments[1] == "number"
                                     && typeof arguments[2] == "number"
                                     && typeof arguments[3] == "number") {
     this.start = new Cursor(arguments[0], arguments[1]);
     this.end = new Cursor(arguments[2], arguments[3]);
   } else {
     throw "Wrong usage of Range constructor";
   }
 }
 
 Range.prototype.clone = function() {
   return new Range(this.start, this.end);
 }
 
 Range.prototype.isValid = function() {
   return this.start.isValid() && this.end.isValid();
 }
 
 Range.prototype.isEmpty = function() {
   return this.start.equals(this.end);
 }
 
 Range.prototype.contains = function(cursorOrRange) {
   if (cursorOrRange.start && cursorOrRange.end) {
     // assume a range
     return (cursorOrRange.start.compareTo(this.start) >= 0 &&
             cursorOrRange.end.compareTo(this.end) <= 0);
   }
 
   // else: assume a cursor
   return (cursorOrRange.compareTo(this.start) >= 0 &&
           cursorOrRange.compareTo(this.end) < 0);
 }
 
 Range.prototype.containsColumn = function(column) {
   return (column >= this.start.column) && (column < this.end.column);
 }
 
 Range.prototype.containsLine = function(line) {
   return ((line > this.start.line) || ((line === this.start.line) && (this.start.column === 0))) && line < this.end.line;
 }
 
 Range.prototype.overlaps = function(range) {
   if (range.start.compareTo(this.start) <= 0) {
     return range.end.compareTo(this.start) > 0;
   }
   if (range.end.compareTo(this.end) >= 0) {
     return range.start.compareTo(this.end) < 0;
   }
   return this.contains(range);
 }
 
 Range.prototype.overlapsLine = function(line) {
   return (line >= this.start.line && line <= this.end.line);
 }
 
 Range.prototype.overlapsColumn = function(column) {
   return column >= this.start.column && column <= this.end.column;
 }
 
 Range.prototype.onSingleLine = function() {
   return (this.start.line == this.end.line);
 }
 
 Range.prototype.equals = function(other) {
   return (this.start.equals(other.start) && this.end.equals(other.end));
 }
 
 Range.prototype.toString = function() {
   return "Range(" + this.start + ", " + this.end + ")";
 }
 
 Range.invalid = function() {
   return new Range(-1, -1, -1, -1);
 }
 
 // kate: indent-width 2; replace-tabs on;