Tools/DumpRenderTree/chromium/MockGrammarCheck.cpp

/*
 * Copyright (C) 2012 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:
 *
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 * notice, this list of conditions and the following disclaimer.
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 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
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 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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#include "config.h"
#include "MockGrammarCheck.h"

#include "WebTextCheckingResult.h"
#include "platform/WebString.h"

#include <wtf/ASCIICType.h>
#include <wtf/Assertions.h>
#include <wtf/text/WTFString.h>

using namespace WebKit;

bool MockGrammarCheck::checkGrammarOfString(const WebString& text, Vector<WebTextCheckingResult>* results)
{
    ASSERT(results);
    WTF::String stringText(text.data(), text.length());
    if (stringText.find(isASCIIAlpha) == static_cast<size_t>(-1))
        return true;

    // Find matching grammatical errors from known ones. This function has to
    // check all errors because the given text may consist of two or more
    // sentences that have grammatical errors.
    static const struct {
        const char* text;
        int location;
        int length;
    } grammarErrors[] = {
        {"I have a issue.", 7, 1},
        {"I have an grape.", 7, 2},
        {"I have an kiwi.", 7, 2},
        {"I have an muscat.", 7, 2},
        {"You has the right.", 4, 3},
        {"apple orange zz.", 0, 16},
        {"apple zz orange.", 0, 16},
        {"apple,zz,orange.", 0, 16},
        {"orange,zz,apple.", 0, 16},
        {"the the adlj adaasj sdklj. there there", 0, 38},
        {"zz apple orange.", 0, 16},
    };
    for (size_t i = 0; i < ARRAYSIZE_UNSAFE(grammarErrors); ++i) {
        int offset = 0;
        while ((offset = stringText.find(grammarErrors[i].text, offset)) != -1) {
            results->append(WebTextCheckingResult(WebTextCheckingTypeGrammar, offset + grammarErrors[i].location, grammarErrors[i].length));
            offset += grammarErrors[i].length;
        }
    }
    return false;
}