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-rw-r--r--src/utility/context.h142
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diff --git a/src/utility/context.h b/src/utility/context.h
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--- a/src/utility/context.h
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-/*
- * Copyright (c) 2003-2007, John Wiegley. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - 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.
- *
- * - Neither the name of New Artisans LLC nor the names of its
- * contributors may be used to endorse or promote products derived from
- * 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
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR 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.
- */
-
-#ifndef _CONTEXT_H
-#define _CONTEXT_H
-
-namespace ledger {
-
-class context
-{
-public:
- string description; // ex: 'While parsing file "%R" at line %L'
-
- context() throw() {}
- explicit context(const string& _description) throw()
- : description(_description) {}
-
- virtual ~context() {}
-};
-
-class file_context : public context
-{
-public:
- path pathname; // ex: ledger.dat
-
- uint_least32_t linenum_beg; // ex: 1010
- uint_least32_t linenum_end; // ex: 1010
- uint_least32_t position_beg;
- uint_least32_t position_end;
-
- optional<uint_least32_t> colnum_beg; // ex: 8
- optional<uint_least32_t> colnum_end; // ex: 8
-
- explicit file_context(const path& _pathname,
- const uint_least32_t _linenum_beg,
- const uint_least32_t _linenum_end,
- const uint_least32_t _position_beg,
- const uint_least32_t _position_end) throw()
- : context(""),
- pathname(_pathname),
- linenum_beg(_linenum_beg),
- linenum_end(_linenum_end),
- position_beg(_position_beg),
- position_end(_position_end) {}
-};
-
-class string_context : public context
-{
-public:
- string text; // ex: (The multi-line text of an entry)
-
- optional<uint_least32_t> linenum_beg_off; // ex: 2
- optional<uint_least32_t> linenum_end_off; // ex: 2
- optional<uint_least32_t> colnum_beg_off; // ex: 8
- optional<uint_least32_t> colnum_end_off; // ex: 8
-};
-
-#if 0
-
-class file_context : public error_context
-{
- protected:
- string file;
- unsigned long line;
- public:
- file_context(const string& _file, unsigned long _line,
- const string& _desc = "") throw()
- : error_context(_desc), file(_file), line(_line) {}
- virtual ~file_context() throw() {}
-
- virtual void describe(std::ostream& out) const throw() {
- if (! desc.empty())
- out << desc << " ";
-
- out << "\"" << file << "\", line " << line << ": ";
- }
-};
-
-class line_context : public error_context {
- public:
- string line;
- long pos;
-
- line_context(const string& _line, long _pos,
- const string& _desc = "") throw()
- : error_context(_desc), line(_line), pos(_pos) {}
- virtual ~line_context() throw() {}
-
- virtual void describe(std::ostream& out) const throw() {
- if (! desc.empty())
- out << desc << std::endl;
-
- out << " " << line << std::endl << " ";
- long idx = pos < 0 ? line.length() - 1 : pos;
- for (int i = 0; i < idx; i++)
- out << " ";
- out << "^" << std::endl;
- }
-};
-
-#endif
-
-extern ptr_list<context> context_stack;
-
-#define PUSH_CONTEXT() try {
-#define POP_CONTEXT(ctxt) \
- } catch (...) { \
- context_stack.push_front(new ctxt); \
- throw; \
- }
-
-} // namespace ledger
-
-#endif // _CONTEXT_H