webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 64 insertions, 0 deletions

diff --git a/Source/WebInspectorUI/UserInterface/Workers/Formatter/FormatterUtilities.js b/Source/WebInspectorUI/UserInterface/Workers/Formatter/FormatterUtilities.js
new file mode 100644
index 000000000..3d77c14d2
--- /dev/null
+++ b/Source/WebInspectorUI/UserInterface/Workers/Formatter/FormatterUtilities.js
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2016 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+Object.defineProperty(Array.prototype, "lastValue",
+{
+    get()
+    {
+        if (!this.length)
+            return undefined;
+        return this[this.length - 1];
+    }
+});
+
+Object.defineProperty(String.prototype, "lineEndings",
+{
+    value()
+    {
+        let lineEndings = [];
+
+        let index = this.indexOf("\n");
+        while (index !== -1) {
+            lineEndings.push(index);
+            index = this.indexOf("\n", index + 1);
+        }
+
+        lineEndings.push(this.length);
+        return lineEndings;
+    }
+});
+
+// Whitespace helpers from Esprima.
+
+// ECMA-262 11.2 White Space
+function isECMAScriptWhitespace(ch) {
+    return (ch === 0x20) || (ch === 0x09) || (ch === 0x0B) || (ch === 0x0C) || (ch === 0xA0) ||
+        (ch >= 0x1680 && [0x1680, 0x180E, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202F, 0x205F, 0x3000, 0xFEFF].indexOf(ch) >= 0);
+}
+
+// ECMA-262 11.3 Line Terminators
+function isECMAScriptLineTerminator(ch) {
+    return (ch === 0x0A) || (ch === 0x0D) || (ch === 0x2028) || (ch === 0x2029);
+}