All new

alle new

node_modules/lop/lib/StringSource.js

@@ -0,0 +1,53 @@
+var StringSource = module.exports = function(string, description) {
+    var self = {
+        asString: function() {
+            return string;
+        },
+        range: function(startIndex, endIndex) {
+            return new StringSourceRange(string, description, startIndex, endIndex);
+        }
+    };
+    return self;
+};
+
+var StringSourceRange = function(string, description, startIndex, endIndex) {
+    this._string = string;
+    this._description = description;
+    this._startIndex = startIndex;
+    this._endIndex = endIndex;
+};
+
+StringSourceRange.prototype.to = function(otherRange) {
+    // TODO: Assert that tokens are the same across both iterators
+    return new StringSourceRange(this._string, this._description, this._startIndex, otherRange._endIndex);
+};
+
+StringSourceRange.prototype.describe = function() {
+    var position = this._position();
+    var description = this._description ? this._description + "\n" : "";
+    return description + "Line number: " + position.lineNumber + "\nCharacter number: " + position.characterNumber;
+};
+
+StringSourceRange.prototype.lineNumber = function() {
+    return this._position().lineNumber;
+};
+
+StringSourceRange.prototype.characterNumber = function() {
+    return this._position().characterNumber;
+};
+
+StringSourceRange.prototype._position = function() {
+    var self = this;
+    var index = 0;
+    var nextNewLine = function() {
+        return self._string.indexOf("\n", index);
+    };
+
+    var lineNumber = 1;
+    while (nextNewLine() !== -1 && nextNewLine() < this._startIndex) {
+        index = nextNewLine() + 1;
+        lineNumber += 1;
+    }
+    var characterNumber = this._startIndex - index + 1;
+    return {lineNumber: lineNumber, characterNumber: characterNumber};
+};