Wire up the Inspector V8 Debugger

sky/engine/core/inspector/ContentSearchUtils.cpp

+/*
+ * Copyright (C) 2011 Google 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 GOOGLE 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 GOOGLE 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.
+ */
+
+#include "config.h"
+
+#include "core/inspector/ContentSearchUtils.h"
+
+#include "bindings/core/v8/ScriptRegexp.h"
+#include "wtf/Vector.h"
+#include "wtf/text/StringBuilder.h"
+
+namespace blink {
+namespace ContentSearchUtils {
+
+namespace {
+// This should be kept the same as the one in front-end/utilities.js
+static const char regexSpecialCharacters[] = "[](){}+-*.,?\\^$|";
+}
+
+static String createSearchRegexSource(const String& text)
+{
+    StringBuilder result;
+    String specials(regexSpecialCharacters);
+
+    for (unsigned i = 0; i < text.length(); i++) {
+        if (specials.find(text[i]) != kNotFound)
+            result.append('\\');
+        result.append(text[i]);
+    }
+
+    return result.toString();
+}
+
+static Vector<pair<int, String> > getScriptRegexpMatchesByLines(const ScriptRegexp* regex, const String& text)
+{
+    Vector<pair<int, String> > result;
+    if (text.isEmpty())
+        return result;
+
+    OwnPtr<Vector<unsigned> > endings(lineEndings(text));
+    unsigned size = endings->size();
+    unsigned start = 0;
+    for (unsigned lineNumber = 0; lineNumber < size; ++lineNumber) {
+        unsigned lineEnd = endings->at(lineNumber);
+        String line = text.substring(start, lineEnd - start);
+        if (line.endsWith('\r'))
+            line = line.left(line.length() - 1);
+
+        int matchLength;
+        if (regex->match(line, 0, &matchLength) != -1)
+            result.append(pair<int, String>(lineNumber, line));
+
+        start = lineEnd + 1;
+    }
+    return result;
+}
+
+static PassRefPtr<TypeBuilder::Page::SearchMatch> buildObjectForSearchMatch(int lineNumber, const String& lineContent)
+{
+    return TypeBuilder::Page::SearchMatch::create()
+        .setLineNumber(lineNumber)
+        .setLineContent(lineContent)
+        .release();
+}
+
+PassOwnPtr<ScriptRegexp> createSearchRegex(const String& query, bool caseSensitive, bool isRegex)
+{
+    String regexSource = isRegex ? query : createSearchRegexSource(query);
+    return adoptPtr(new ScriptRegexp(regexSource, caseSensitive ? TextCaseSensitive : TextCaseInsensitive));
+}
+
+PassRefPtr<TypeBuilder::Array<TypeBuilder::Page::SearchMatch> > searchInTextByLines(const String& text, const String& query, const bool caseSensitive, const bool isRegex)
+{
+    RefPtr<TypeBuilder::Array<TypeBuilder::Page::SearchMatch> > result = TypeBuilder::Array<TypeBuilder::Page::SearchMatch>::create();
+
+    OwnPtr<ScriptRegexp> regex = ContentSearchUtils::createSearchRegex(query, caseSensitive, isRegex);
+    Vector<pair<int, String> > matches = getScriptRegexpMatchesByLines(regex.get(), text);
+
+    for (Vector<pair<int, String> >::const_iterator it = matches.begin(); it != matches.end(); ++it)
+        result->addItem(buildObjectForSearchMatch(it->first, it->second));
+
+    return result;
+}
+
+static String findMagicComment(const String& content, const String& name, MagicCommentType commentType, bool* deprecated = 0)
+{
+    ASSERT(name.find("=") == kNotFound);
+    if (deprecated)
+        *deprecated = false;
+
+    unsigned length = content.length();
+    unsigned nameLength = name.length();
+
+    size_t pos = length;
+    size_t equalSignPos = 0;
+    size_t closingCommentPos = 0;
+    while (true) {
+        pos = content.reverseFind(name, pos);
+        if (pos == kNotFound)
+            return String();
+
+        // Check for a /\/[\/*][@#][ \t]/ regexp (length of 4) before found name.
+        if (pos < 4)
+            return String();
+        pos -= 4;
+        if (content[pos] != '/')
+            continue;
+        if ((content[pos + 1] != '/' || commentType != JavaScriptMagicComment)
+            && (content[pos + 1] != '*' || commentType != CSSMagicComment))
+            continue;
+        if (content[pos + 2] != '#' && content[pos + 2] != '@')
+            continue;
+        if (content[pos + 3] != ' ' && content[pos + 3] != '\t')
+            continue;
+        equalSignPos = pos + 4 + nameLength;
+        if (equalSignPos < length && content[equalSignPos] != '=')
+            continue;
+        if (commentType == CSSMagicComment) {
+            closingCommentPos = content.find("*/", equalSignPos + 1);
+            if (closingCommentPos == kNotFound)
+                return String();
+        }
+
+        break;
+    }
+
+    if (deprecated && content[pos + 2] == '@')
+        *deprecated = true;
+
+    ASSERT(equalSignPos);
+    ASSERT(commentType != CSSMagicComment || closingCommentPos);
+    size_t urlPos = equalSignPos + 1;
+    String match = commentType == CSSMagicComment
+        ? content.substring(urlPos, closingCommentPos - urlPos)
+        : content.substring(urlPos);
+
+    size_t newLine = match.find("\n");
+    if (newLine != kNotFound)
+        match = match.substring(0, newLine);
+    match = match.stripWhiteSpace();
+
+    String disallowedChars("\"' \t");
+    for (unsigned i = 0; i < match.length(); ++i) {
+        if (disallowedChars.find(match[i]) != kNotFound)
+            return "";
+    }
+
+    return match;
+}
+
+String findSourceURL(const String& content, MagicCommentType commentType, bool* deprecated)
+{
+    return findMagicComment(content, "sourceURL", commentType, deprecated);
+}
+
+String findSourceMapURL(const String& content, MagicCommentType commentType, bool* deprecated)
+{
+    return findMagicComment(content, "sourceMappingURL", commentType, deprecated);
+}
+
+} // namespace ContentSearchUtils
+} // namespace blink
+