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      1 /*
      2  * Copyright (C) 1999 Lars Knoll (knoll (at) kde.org)
      3  * Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
      4  *
      5  * This library is free software; you can redistribute it and/or
      6  * modify it under the terms of the GNU Library General Public
      7  * License as published by the Free Software Foundation; either
      8  * version 2 of the License, or (at your option) any later version.
      9  *
     10  * This library is distributed in the hope that it will be useful,
     11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     13  * Library General Public License for more details.
     14  *
     15  * You should have received a copy of the GNU Library General Public License
     16  * along with this library; see the file COPYING.LIB.  If not, write to
     17  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     18  * Boston, MA 02110-1301, USA.
     19  *
     20  */
     21 
     22 #include "config.h"
     23 #include "CSSHelper.h"
     24 
     25 #include "PlatformString.h"
     26 #include <wtf/Vector.h>
     27 
     28 namespace WebCore {
     29 
     30 String deprecatedParseURL(const String& url)
     31 {
     32     StringImpl* i = url.impl();
     33     if (!i)
     34         return String();
     35 
     36     int o = 0;
     37     int l = i->length();
     38 
     39     while (o < l && (*i)[o] <= ' ') {
     40         ++o;
     41         --l;
     42     }
     43     while (l > 0 && (*i)[o + l - 1] <= ' ')
     44         --l;
     45 
     46     if (l >= 5
     47             && ((*i)[o] == 'u' || (*i)[o] == 'U')
     48             && ((*i)[o + 1] == 'r' || (*i)[o + 1] == 'R')
     49             && ((*i)[o + 2] == 'l' || (*i)[o + 2] == 'L')
     50             && (*i)[o + 3] == '('
     51             && (*i)[o + l - 1] == ')') {
     52         o += 4;
     53         l -= 5;
     54     }
     55 
     56     while (o < l && (*i)[o] <= ' ') {
     57         ++o;
     58         --l;
     59     }
     60     while (l > 0 && (*i)[o + l - 1] <= ' ')
     61         --l;
     62 
     63     if (l >= 2 && (*i)[o] == (*i)[o + l - 1] && ((*i)[o] == '\'' || (*i)[o] == '\"')) {
     64         o++;
     65         l -= 2;
     66     }
     67 
     68     while (o < l && (*i)[o] <= ' ') {
     69         ++o;
     70         --l;
     71     }
     72     while (l > 0 && (*i)[o + l - 1] <= ' ')
     73         --l;
     74 
     75     Vector<UChar, 2048> buffer(l);
     76 
     77     int nl = 0;
     78     for (int k = o; k < o + l; k++) {
     79         UChar c = (*i)[k];
     80         if (c > '\r')
     81             buffer[nl++] = c;
     82     }
     83 
     84     return String(buffer.data(), nl);
     85 }
     86 
     87 } // namespace WebCore
     88