forked from qt-creator/qt-creator
Moved the preprocessor.
This commit is contained in:
Roberto Raggi
380
src/libs/cplusplus/pp-scanner.h
Normal file
380
src/libs/cplusplus/pp-scanner.h
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@@ -0,0 +1,380 @@
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/***************************************************************************
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**
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** This file is part of Qt Creator
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**
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** Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
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**
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** Contact: Qt Software Information (qt-info@nokia.com)
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**
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**
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** Non-Open Source Usage
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**
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** Licensees may use this file in accordance with the Qt Beta Version
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** License Agreement, Agreement version 2.2 provided with the Software or,
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** alternatively, in accordance with the terms contained in a written
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** agreement between you and Nokia.
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**
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** GNU General Public License Usage
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**
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License versions 2.0 or 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the packaging
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** of this file. Please review the following information to ensure GNU
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** General Public Licensing requirements will be met:
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**
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** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt GPL Exception
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** version 1.2, included in the file GPL_EXCEPTION.txt in this package.
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**
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***************************************************************************/
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/*
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Copyright 2005 Roberto Raggi <roberto@kdevelop.org>
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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KDEVELOP TEAM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef PP_SCANNER_H
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#define PP_SCANNER_H
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namespace CPlusPlus {
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struct pp_skip_blanks
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{
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int lines;
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const char *operator () (const char *__first, const char *__last)
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{
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lines = 0;
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for (; __first != __last; lines += (*__first != '\n' ? 0 : 1), ++__first)
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{
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if (*__first == '\\')
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{
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const char *__begin = __first;
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++__begin;
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if (__begin != __last && *__begin == '\n')
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++__first;
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else
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break;
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}
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else if (*__first == '\n' || !pp_isspace (*__first))
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break;
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}
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return __first;
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}
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};
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struct pp_skip_whitespaces
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{
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int lines;
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const char *operator () (const char *__first, const char *__last)
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{
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lines = 0;
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for (; __first != __last; lines += (*__first != '\n' ? 0 : 1), ++__first)
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{
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if (! pp_isspace (*__first))
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break;
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}
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return __first;
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}
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};
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struct pp_skip_comment_or_divop
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{
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int lines;
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const char *operator () (const char *__first, const char *__last)
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{
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enum {
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MAYBE_BEGIN,
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BEGIN,
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MAYBE_END,
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END,
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IN_COMMENT,
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IN_CXX_COMMENT
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} state (MAYBE_BEGIN);
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lines = 0;
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for (; __first != __last; lines += (*__first != '\n' ? 0 : 1), ++__first)
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{
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switch (state)
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{
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default:
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assert (0);
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break;
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case MAYBE_BEGIN:
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if (*__first != '/')
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return __first;
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state = BEGIN;
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break;
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case BEGIN:
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if (*__first == '*')
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state = IN_COMMENT;
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else if (*__first == '/')
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state = IN_CXX_COMMENT;
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else
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return __first;
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break;
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case IN_COMMENT:
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if (*__first == '*')
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state = MAYBE_END;
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break;
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case IN_CXX_COMMENT:
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if (*__first == '\n')
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return __first;
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break;
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case MAYBE_END:
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if (*__first == '/')
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state = END;
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else if (*__first != '*')
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state = IN_COMMENT;
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break;
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case END:
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return __first;
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}
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}
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return __first;
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}
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};
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struct pp_skip_identifier
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{
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int lines;
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const char *operator () (const char *__first, const char *__last)
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{
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lines = 0;
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for (; __first != __last; lines += (*__first != '\n' ? 0 : 1), ++__first)
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{
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if (! pp_isalnum (*__first) && *__first != '_')
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break;
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}
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return __first;
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}
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};
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struct pp_skip_number
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{
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int lines;
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const char *operator () (const char *__first, const char *__last)
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{
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lines = 0;
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for (; __first != __last; lines += (*__first != '\n' ? 0 : 1), ++__first)
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{
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if (! pp_isalnum (*__first) && *__first != '.')
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break;
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}
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return __first;
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}
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};
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struct pp_skip_string_literal
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{
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int lines;
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const char *operator () (const char *__first, const char *__last)
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{
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enum {
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BEGIN,
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IN_STRING,
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QUOTE,
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END
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} state (BEGIN);
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lines = 0;
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for (; __first != __last; lines += (*__first != '\n' ? 0 : 1), ++__first)
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{
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switch (state)
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{
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default:
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assert (0);
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break;
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case BEGIN:
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if (*__first != '\"')
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return __first;
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state = IN_STRING;
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break;
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case IN_STRING:
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if (! (*__first != '\n'))
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return __last;
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if (*__first == '\"')
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state = END;
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else if (*__first == '\\')
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state = QUOTE;
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break;
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case QUOTE:
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state = IN_STRING;
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break;
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case END:
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return __first;
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}
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}
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return __first;
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}
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};
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struct pp_skip_char_literal
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{
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int lines;
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const char *operator () (const char *__first, const char *__last)
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{
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enum {
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BEGIN,
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IN_STRING,
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QUOTE,
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END
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} state (BEGIN);
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lines = 0;
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for (; state != END && __first != __last; lines += (*__first != '\n' ? 0 : 1), ++__first)
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{
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switch (state)
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{
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default:
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assert (0);
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break;
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case BEGIN:
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if (*__first != '\'')
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return __first;
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state = IN_STRING;
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break;
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case IN_STRING:
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if (! (*__first != '\n'))
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return __last;
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if (*__first == '\'')
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state = END;
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else if (*__first == '\\')
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state = QUOTE;
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break;
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case QUOTE:
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state = IN_STRING;
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break;
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}
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}
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return __first;
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}
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};
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struct pp_skip_argument
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{
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pp_skip_identifier skip_number;
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pp_skip_identifier skip_identifier;
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pp_skip_string_literal skip_string_literal;
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pp_skip_char_literal skip_char_literal;
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pp_skip_comment_or_divop skip_comment_or_divop;
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int lines;
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const char *operator () (const char *__first, const char *__last)
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{
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int depth = 0;
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lines = 0;
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while (__first != __last)
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{
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if (!depth && (*__first == ')' || *__first == ','))
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break;
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else if (*__first == '(')
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++depth, ++__first;
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else if (*__first == ')')
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--depth, ++__first;
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else if (*__first == '\"')
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{
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__first = skip_string_literal (__first, __last);
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lines += skip_string_literal.lines;
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}
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else if (*__first == '\'')
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{
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__first = skip_char_literal (__first, __last);
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lines += skip_char_literal.lines;
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}
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else if (*__first == '/')
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{
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__first = skip_comment_or_divop (__first, __last);
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lines += skip_comment_or_divop.lines;
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}
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else if (pp_isalpha (*__first) || *__first == '_')
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{
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__first = skip_identifier (__first, __last);
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lines += skip_identifier.lines;
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}
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else if (pp_isdigit (*__first))
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{
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__first = skip_number (__first, __last);
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lines += skip_number.lines;
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}
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else if (*__first == '\n')
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{
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++__first;
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++lines;
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}
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else
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++__first;
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}
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return __first;
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}
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};
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} // namespace CPlusPlus
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#endif // PP_SCANNER_H
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// kate: space-indent on; indent-width 2; replace-tabs on;
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