Mercurial > projects > qtd
view generator/parser/rpp/pp-scanner.h @ 1:e78566595089
initial import
author | mandel |
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date | Mon, 11 May 2009 16:01:50 +0000 |
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children | 09a0f1d048f2 |
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/**************************************************************************** ** ** Copyright (C) 1992-2008 Nokia. All rights reserved. ** Copyright 2005 Roberto Raggi <roberto@kdevelop.org> ** ** This file is part of Qt Jambi. ** ** * Commercial Usage * Licensees holding valid Qt Commercial licenses may use this file in * accordance with the Qt Commercial License Agreement provided with the * Software or, alternatively, in accordance with the terms contained in * a written agreement between you and Nokia. * * * GNU General Public License Usage * Alternatively, this file may be used under the terms of the GNU * General Public License versions 2.0 or 3.0 as published by the Free * Software Foundation and appearing in the file LICENSE.GPL included in * the packaging of this file. Please review the following information * to ensure GNU General Public Licensing requirements will be met: * http://www.fsf.org/licensing/licenses/info/GPLv2.html and * http://www.gnu.org/copyleft/gpl.html. In addition, as a special * exception, Nokia gives you certain additional rights. These rights * are described in the Nokia Qt GPL Exception version 1.2, included in * the file GPL_EXCEPTION.txt in this package. * * Qt for Windows(R) Licensees * As a special exception, Nokia, as the sole copyright holder for Qt * Designer, grants users of the Qt/Eclipse Integration plug-in the * right for the Qt/Eclipse Integration to link to functionality * provided by Qt Designer and its related libraries. * * * If you are unsure which license is appropriate for your use, please * contact the sales department at qt-sales@nokia.com. ** ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ** ****************************************************************************/ #ifndef PP_SCANNER_H #define PP_SCANNER_H namespace rpp { struct pp_skip_blanks { int lines; template <typename _InputIterator> _InputIterator operator () (_InputIterator __first, _InputIterator __last) { lines = 0; for (; __first != __last; lines += (*__first != '\n' ? 0 : 1), ++__first) { if (*__first == '\\') { _InputIterator __begin = __first; ++__begin; if (__begin != __last && *__begin == '\n') ++__first; else break; } else if (*__first == '\n' || !pp_isspace (*__first)) break; } return __first; } }; struct pp_skip_whitespaces { int lines; template <typename _InputIterator> _InputIterator operator () (_InputIterator __first, _InputIterator __last) { lines = 0; for (; __first != __last; lines += (*__first != '\n' ? 0 : 1), ++__first) { if (! pp_isspace (*__first)) break; } return __first; } }; struct pp_skip_comment_or_divop { int lines; template <typename _InputIterator> _InputIterator operator () (_InputIterator __first, _InputIterator __last) { enum { MAYBE_BEGIN, BEGIN, MAYBE_END, END, IN_COMMENT, IN_CXX_COMMENT } state (MAYBE_BEGIN); lines = 0; for (; __first != __last; lines += (*__first != '\n' ? 0 : 1), ++__first) { switch (state) { default: assert (0); break; case MAYBE_BEGIN: if (*__first != '/') return __first; state = BEGIN; break; case BEGIN: if (*__first == '*') state = IN_COMMENT; else if (*__first == '/') state = IN_CXX_COMMENT; else return __first; break; case IN_COMMENT: if (*__first == '*') state = MAYBE_END; break; case IN_CXX_COMMENT: if (*__first == '\n') return __first; break; case MAYBE_END: if (*__first == '/') state = END; else if (*__first != '*') state = IN_COMMENT; break; case END: return __first; } } return __first; } }; struct pp_skip_identifier { int lines; template <typename _InputIterator> _InputIterator operator () (_InputIterator __first, _InputIterator __last) { lines = 0; for (; __first != __last; lines += (*__first != '\n' ? 0 : 1), ++__first) { if (! pp_isalnum (*__first) && *__first != '_') break; } return __first; } }; struct pp_skip_number { int lines; template <typename _InputIterator> _InputIterator operator () (_InputIterator __first, _InputIterator __last) { lines = 0; for (; __first != __last; lines += (*__first != '\n' ? 0 : 1), ++__first) { if (! pp_isalnum (*__first) && *__first != '.') break; } return __first; } }; struct pp_skip_string_literal { int lines; template <typename _InputIterator> _InputIterator operator () (_InputIterator __first, _InputIterator __last) { enum { BEGIN, IN_STRING, QUOTE, END } state (BEGIN); lines = 0; for (; __first != __last; lines += (*__first != '\n' ? 0 : 1), ++__first) { switch (state) { default: assert (0); break; case BEGIN: if (*__first != '\"') return __first; state = IN_STRING; break; case IN_STRING: assert (*__first != '\n'); if (*__first == '\"') state = END; else if (*__first == '\\') state = QUOTE; break; case QUOTE: state = IN_STRING; break; case END: return __first; } } return __first; } }; struct pp_skip_char_literal { int lines; template <typename _InputIterator> _InputIterator operator () (_InputIterator __first, _InputIterator __last) { enum { BEGIN, IN_STRING, QUOTE, END } state (BEGIN); lines = 0; for (; state != END && __first != __last; lines += (*__first != '\n' ? 0 : 1), ++__first) { switch (state) { default: assert (0); break; case BEGIN: if (*__first != '\'') return __first; state = IN_STRING; break; case IN_STRING: assert (*__first != '\n'); if (*__first == '\'') state = END; else if (*__first == '\\') state = QUOTE; break; case QUOTE: state = IN_STRING; break; } } return __first; } }; struct pp_skip_argument { pp_skip_identifier skip_number; pp_skip_identifier skip_identifier; pp_skip_string_literal skip_string_literal; pp_skip_char_literal skip_char_literal; pp_skip_comment_or_divop skip_comment_or_divop; int lines; template <typename _InputIterator> _InputIterator operator () (_InputIterator __first, _InputIterator __last) { int depth = 0; lines = 0; while (__first != __last) { if (!depth && (*__first == ')' || *__first == ',')) break; else if (*__first == '(') ++depth, ++__first; else if (*__first == ')') --depth, ++__first; else if (*__first == '\"') { __first = skip_string_literal (__first, __last); lines += skip_string_literal.lines; } else if (*__first == '\'') { __first = skip_char_literal (__first, __last); lines += skip_char_literal.lines; } else if (*__first == '/') { __first = skip_comment_or_divop (__first, __last); lines += skip_comment_or_divop.lines; } else if (pp_isalpha (*__first) || *__first == '_') { __first = skip_identifier (__first, __last); lines += skip_identifier.lines; } else if (pp_isdigit (*__first)) { __first = skip_number (__first, __last); lines += skip_number.lines; } else if (*__first == '\n') { ++__first; ++lines; } else ++__first; } return __first; } }; } // namespace rpp #endif // PP_SCANNER_H // kate: space-indent on; indent-width 2; replace-tabs on;