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1408 lines
48 KiB
C
1408 lines
48 KiB
C
![]() |
/*
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* Copyright (c) 1996,1997
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* Silicon Graphics Computer Systems, Inc.
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*
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* Copyright (c) 1999
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* Boris Fomitchev
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*
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* This material is provided "as is", with absolutely no warranty expressed
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* or implied. Any use is at your own risk.
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*
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* Permission to use or copy this software for any purpose is hereby granted
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* without fee, provided the above notices are retained on all copies.
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* Permission to modify the code and to distribute modified code is granted,
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* provided the above notices are retained, and a notice that the code was
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* modified is included with the above copyright notice.
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*
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*/
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/* NOTE: This is an internal header file, included by other STL headers.
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* You should not attempt to use it directly.
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*/
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// Set buf_start, buf_end, and buf_ptr appropriately, filling tmp_buf
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// if necessary. Assumes path_end[leaf_index] and leaf_pos are correct.
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// Results in a valid buf_ptr if the iterator can be legitimately
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// dereferenced.
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#ifndef _STLP_ROPEIMPL_H
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#define _STLP_ROPEIMPL_H
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#ifndef _STLP_INTERNAL_ROPE_H
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# include <stl/_rope.h>
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#endif
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#ifndef _STLP_INTERNAL_CSTDIO
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# include <stl/_cstdio.h>
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#endif
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#if !defined (_STLP_USE_NO_IOSTREAMS)
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# ifndef _STLP_INTERNAL_OSTREAM_H
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# include <stl/_ostream.h>
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# endif
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# ifndef _STLP_INTERNAL_ISTREAM
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# include <stl/_istream.h>
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# endif
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#endif
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#include <stl/_range_errors.h>
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_STLP_BEGIN_NAMESPACE
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#if defined ( _STLP_NESTED_TYPE_PARAM_BUG )
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# define __allocator__ _Alloc
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#else
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# define __allocator__ allocator_type
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#endif
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template<class _CharT, class _Alloc>
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_Rope_iterator<_CharT, _Alloc>::_Rope_iterator(rope<_CharT,_Alloc>* __r, size_t __pos)
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: _Rope_iterator_base<_CharT,_Alloc>(__r->_M_tree_ptr._M_data, __pos),
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_M_root_rope(__r) { _RopeRep::_S_ref(this->_M_root); }
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template<class _CharT, class _Alloc>
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_Rope_iterator<_CharT, _Alloc>::_Rope_iterator(rope<_CharT,_Alloc>& __r, size_t __pos):
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_Rope_iterator_base<_CharT,_Alloc>(__r._M_tree_ptr._M_data, __pos),
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_M_root_rope(&__r) {
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#if !defined (__DMC__)
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_RopeRep::_S_ref(this->_M_root); if (!(__r.empty()))_S_setcache(*this);
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#else
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_Rope_iterator_base<_CharT, _Alloc>* __x = this;
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_RopeRep::_S_ref(this->_M_root); if (!(__r.empty()))_S_setcache(*__x);
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#endif
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}
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template<class _CharT, class _Alloc>
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void _Rope_RopeRep<_CharT, _Alloc>::_M_free_c_string() {
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_CharT* __cstr = _M_c_string;
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if (0 != __cstr) {
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size_t _p_size = _M_size._M_data + 1;
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_STLP_STD::_Destroy_Range(__cstr, __cstr + _p_size);
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_M_size.deallocate(__cstr, _p_size);
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}
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}
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// Set buf_start, buf_end, and buf_ptr appropriately, filling tmp_buf
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// if necessary. Assumes _M_path_end[leaf_index] and leaf_pos are correct.
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// Results in a valid buf_ptr if the iterator can be legitimately
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// dereferenced.
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template <class _CharT, class _Alloc>
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void _Rope_iterator_base<_CharT,_Alloc>::_S_setbuf(
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_Rope_iterator_base<_CharT,_Alloc>& __x) {
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const _RopeRep* __leaf = __x._M_path_end._M_data[__x._M_leaf_index];
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size_t __leaf_pos = __x._M_leaf_pos;
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size_t __pos = __x._M_current_pos;
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switch(__leaf->_M_tag) {
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case _RopeRep::_S_leaf:
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typedef _Rope_RopeLeaf<_CharT, _Alloc> _RopeLeaf;
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__x._M_buf_start = __STATIC_CAST(const _RopeLeaf*, __leaf)->_M_data;
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__x._M_buf_ptr = __x._M_buf_start + (__pos - __leaf_pos);
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__x._M_buf_end = __x._M_buf_start + __leaf->_M_size._M_data;
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break;
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case _RopeRep::_S_function:
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case _RopeRep::_S_substringfn:
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{
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size_t __len = _S_iterator_buf_len;
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size_t __buf_start_pos = __leaf_pos;
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size_t __leaf_end = __leaf_pos + __leaf->_M_size._M_data;
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typedef _Rope_RopeFunction<_CharT, _Alloc> _RopeFunction;
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char_producer<_CharT>* __fn = __STATIC_CAST(const _RopeFunction*, __leaf)->_M_fn;
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if (__buf_start_pos + __len <= __pos) {
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__buf_start_pos = __pos - __len/4;
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if (__buf_start_pos + __len > __leaf_end) {
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__buf_start_pos = __leaf_end - __len;
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}
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}
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if (__buf_start_pos + __len > __leaf_end) {
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__len = __leaf_end - __buf_start_pos;
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}
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(*__fn)(__buf_start_pos - __leaf_pos, __len, __x._M_tmp_buf._M_data);
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__x._M_buf_ptr = __x._M_tmp_buf._M_data + (__pos - __buf_start_pos);
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__x._M_buf_start = __x._M_tmp_buf._M_data;
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__x._M_buf_end = __x._M_tmp_buf._M_data + __len;
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}
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break;
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default:
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_STLP_ASSERT(0)
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;
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}
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}
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// Set path and buffer inside a rope iterator. We assume that
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// pos and root are already set.
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template <class _CharT, class _Alloc>
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void _Rope_iterator_base<_CharT,_Alloc>::_S_setcache(
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_Rope_iterator_base<_CharT,_Alloc>& __x) {
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const _RopeRep* __path[_RopeRep::_S_max_rope_depth+1];
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const _RopeRep* __curr_rope;
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int __curr_depth = -1; /* index into path */
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size_t __curr_start_pos = 0;
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size_t __pos = __x._M_current_pos;
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unsigned char __dirns = 0; // Bit vector marking right turns in the path
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_STLP_ASSERT(__pos <= __x._M_root->_M_size._M_data)
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if (__pos >= __x._M_root->_M_size._M_data) {
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__x._M_buf_ptr = 0;
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return;
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}
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__curr_rope = __x._M_root;
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if (0 != __curr_rope->_M_c_string) {
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/* Treat the root as a leaf. */
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__x._M_buf_start = __curr_rope->_M_c_string;
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__x._M_buf_end = __curr_rope->_M_c_string + __curr_rope->_M_size._M_data;
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__x._M_buf_ptr = __curr_rope->_M_c_string + __pos;
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__x._M_path_end._M_data[0] = __curr_rope;
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__x._M_leaf_index = 0;
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__x._M_leaf_pos = 0;
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return;
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}
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for(;;) {
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++__curr_depth;
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_STLP_ASSERT(__curr_depth <= _RopeRep::_S_max_rope_depth)
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__path[__curr_depth] = __curr_rope;
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switch(__curr_rope->_M_tag) {
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case _RopeRep::_S_leaf:
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case _RopeRep::_S_function:
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case _RopeRep::_S_substringfn:
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__x._M_leaf_pos = __curr_start_pos;
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goto done;
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case _RopeRep::_S_concat:
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{
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const _RopeConcat* __c = __STATIC_CAST(const _RopeConcat*, __curr_rope);
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_RopeRep* __left = __c->_M_left;
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size_t __left_len = __left->_M_size._M_data;
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__dirns <<= 1;
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if (__pos >= __curr_start_pos + __left_len) {
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__dirns |= 1;
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__curr_rope = __c->_M_right;
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__curr_start_pos += __left_len;
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} else {
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__curr_rope = __left;
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}
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}
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break;
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}
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}
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done:
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// Copy last section of path into _M_path_end.
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{
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int __i = -1;
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int __j = __curr_depth + 1 - _S_path_cache_len;
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if (__j < 0) __j = 0;
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while (__j <= __curr_depth) {
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__x._M_path_end._M_data[++__i] = __path[__j++];
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}
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__x._M_leaf_index = __i;
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}
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__x._M_path_directions = __dirns;
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_S_setbuf(__x);
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}
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// Specialized version of the above. Assumes that
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// the path cache is valid for the previous position.
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template <class _CharT, class _Alloc>
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void _Rope_iterator_base<_CharT,_Alloc>::_S_setcache_for_incr(
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_Rope_iterator_base<_CharT,_Alloc>& __x) {
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int __current_index = __x._M_leaf_index;
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const _RopeRep* __current_node = __x._M_path_end._M_data[__current_index];
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size_t __len = __current_node->_M_size._M_data;
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size_t __node_start_pos = __x._M_leaf_pos;
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unsigned char __dirns = __x._M_path_directions;
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const _RopeConcat* __c;
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_STLP_ASSERT(__x._M_current_pos <= __x._M_root->_M_size._M_data)
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if (__x._M_current_pos - __node_start_pos < __len) {
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/* More stuff in this leaf, we just didn't cache it. */
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_S_setbuf(__x);
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return;
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}
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_STLP_ASSERT(__node_start_pos + __len == __x._M_current_pos)
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// node_start_pos is starting position of last_node.
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while (--__current_index >= 0) {
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if (!(__dirns & 1) /* Path turned left */)
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break;
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__current_node = __x._M_path_end._M_data[__current_index];
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__c = __STATIC_CAST(const _RopeConcat*, __current_node);
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// Otherwise we were in the right child. Thus we should pop
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// the concatenation node.
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__node_start_pos -= __c->_M_left->_M_size._M_data;
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__dirns >>= 1;
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}
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if (__current_index < 0) {
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// We underflowed the cache. Punt.
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_S_setcache(__x);
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return;
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}
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__current_node = __x._M_path_end._M_data[__current_index];
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__c = __STATIC_CAST(const _RopeConcat*, __current_node);
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// current_node is a concatenation node. We are positioned on the first
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// character in its right child.
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// node_start_pos is starting position of current_node.
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__node_start_pos += __c->_M_left->_M_size._M_data;
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__current_node = __c->_M_right;
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__x._M_path_end._M_data[++__current_index] = __current_node;
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__dirns |= 1;
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while (_RopeRep::_S_concat == __current_node->_M_tag) {
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++__current_index;
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if (_S_path_cache_len == __current_index) {
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int __i;
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for (__i = 0; __i < _S_path_cache_len-1; ++__i) {
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__x._M_path_end._M_data[__i] = __x._M_path_end._M_data[__i+1];
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}
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--__current_index;
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}
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__current_node = __STATIC_CAST(const _RopeConcat*, __current_node)->_M_left;
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__x._M_path_end._M_data[__current_index] = __current_node;
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__dirns <<= 1;
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// node_start_pos is unchanged.
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}
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__x._M_leaf_index = __current_index;
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__x._M_leaf_pos = __node_start_pos;
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__x._M_path_directions = __dirns;
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_S_setbuf(__x);
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}
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template <class _CharT, class _Alloc>
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void _Rope_iterator_base<_CharT,_Alloc>::_M_incr(size_t __n) {
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_M_current_pos += __n;
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if (0 != _M_buf_ptr) {
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size_t __chars_left = _M_buf_end - _M_buf_ptr;
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if (__chars_left > __n) {
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_M_buf_ptr += __n;
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} else if (__chars_left == __n) {
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_M_buf_ptr += __n;
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_S_setcache_for_incr(*this);
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} else {
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_M_buf_ptr = 0;
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}
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}
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}
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template <class _CharT, class _Alloc>
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void _Rope_iterator_base<_CharT,_Alloc>::_M_decr(size_t __n) {
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if (0 != _M_buf_ptr) {
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size_t __chars_left = _M_buf_ptr - _M_buf_start;
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if (__chars_left >= __n) {
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_M_buf_ptr -= __n;
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} else {
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_M_buf_ptr = 0;
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}
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}
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_M_current_pos -= __n;
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}
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template <class _CharT, class _Alloc>
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void _Rope_iterator<_CharT,_Alloc>::_M_check() {
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if (_M_root_rope->_M_tree_ptr._M_data != this->_M_root) {
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// _Rope was modified. Get things fixed up.
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_RopeRep::_S_unref(this->_M_root);
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this->_M_root = _M_root_rope->_M_tree_ptr._M_data;
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_RopeRep::_S_ref(this->_M_root);
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this->_M_buf_ptr = 0;
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}
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}
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// There are several reasons for not doing this with virtual destructors
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// and a class specific delete operator:
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// - A class specific delete operator can't easily get access to
|
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// allocator instances if we need them.
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// - Any virtual function would need a 4 or byte vtable pointer;
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// this only requires a one byte tag per object.
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template <class _CharT, class _Alloc>
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void _Rope_RopeRep<_CharT,_Alloc>::_M_free_tree() {
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switch (_M_tag) {
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case _S_leaf:
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{
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typedef _Rope_RopeLeaf<_CharT, _Alloc> _RopeLeaf;
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_RopeLeaf* __l = __STATIC_CAST(_RopeLeaf*, this);
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_STLP_STD::_Destroy(__l); // ->_Rope_RopeLeaf<_CharT,_Alloc>::~_Rope_RopeLeaf();
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_STLP_CREATE_ALLOCATOR(allocator_type,(const allocator_type&)_M_size,
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_RopeLeaf).deallocate(__l, 1);
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break;
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}
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case _S_concat:
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{
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typedef _Rope_RopeConcatenation<_CharT, _Alloc> _RopeConcatenation;
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_RopeConcatenation* __c = __STATIC_CAST(_RopeConcatenation*, this);
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_STLP_STD::_Destroy(__c);
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_STLP_CREATE_ALLOCATOR(allocator_type,(const allocator_type&)_M_size,
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_RopeConcatenation).deallocate(__c, 1);
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break;
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}
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case _S_function:
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{
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typedef _Rope_RopeFunction<_CharT, _Alloc> _RopeFunction;
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_RopeFunction* __f = __STATIC_CAST(_RopeFunction*, this);
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_STLP_STD::_Destroy(__f);
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_STLP_CREATE_ALLOCATOR(allocator_type, (const allocator_type&)_M_size,
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_RopeFunction).deallocate(__f, 1);
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break;
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}
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case _S_substringfn:
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{
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typedef _Rope_RopeSubstring<_CharT, _Alloc> _RopeSubstring;
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_RopeSubstring* __rss = __STATIC_CAST(_RopeSubstring*, this);
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_STLP_STD::_Destroy(__rss);
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_STLP_CREATE_ALLOCATOR(allocator_type, (const allocator_type&)_M_size,
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_RopeSubstring).deallocate(__rss, 1);
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break;
|
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}
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||
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}
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||
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}
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||
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|
||
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# if defined ( _STLP_NESTED_TYPE_PARAM_BUG )
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||
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# define __RopeLeaf__ _Rope_RopeLeaf<_CharT,_Alloc>
|
||
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# define __RopeRep__ _Rope_RopeRep<_CharT,_Alloc>
|
||
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# define _RopeLeaf _Rope_RopeLeaf<_CharT,_Alloc>
|
||
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# define _RopeRep _Rope_RopeRep<_CharT,_Alloc>
|
||
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# define size_type size_t
|
||
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# else
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||
|
# define __RopeLeaf__ _STLP_TYPENAME_ON_RETURN_TYPE rope<_CharT,_Alloc>::_RopeLeaf
|
||
|
# define __RopeRep__ _STLP_TYPENAME_ON_RETURN_TYPE rope<_CharT,_Alloc>::_RopeRep
|
||
|
# endif
|
||
|
|
||
|
template <class _CharT, class _Alloc>
|
||
|
void rope<_CharT, _Alloc>::_M_throw_out_of_range() const {
|
||
|
__stl_throw_out_of_range("rope");
|
||
|
}
|
||
|
|
||
|
// Concatenate a C string onto a leaf rope by copying the rope data.
|
||
|
// Used for short ropes.
|
||
|
template <class _CharT, class _Alloc>
|
||
|
__RopeLeaf__*
|
||
|
rope<_CharT,_Alloc>::_S_leaf_concat_char_iter (
|
||
|
_RopeLeaf* __r, const _CharT* __iter, size_t __len) {
|
||
|
size_t __old_len = __r->_M_size._M_data;
|
||
|
_CharT* __new_data = __r->_M_size.allocate(_S_rounded_up_size(__old_len + __len));
|
||
|
_RopeLeaf* __result;
|
||
|
|
||
|
_STLP_PRIV __ucopy_n(__r->_M_data, __old_len, __new_data);
|
||
|
_STLP_PRIV __ucopy_n(__iter, __len, __new_data + __old_len);
|
||
|
_S_construct_null(__new_data + __old_len + __len);
|
||
|
_STLP_TRY {
|
||
|
__result = _S_new_RopeLeaf(__new_data, __old_len + __len, __r->get_allocator());
|
||
|
}
|
||
|
_STLP_UNWIND(_RopeRep::_S_free_string(__new_data, __old_len + __len,
|
||
|
__r->get_allocator()))
|
||
|
return __result;
|
||
|
}
|
||
|
|
||
|
template <class _CharT, class _Alloc>
|
||
|
void _Terminate_RopeLeaf(_Rope_RopeLeaf<_CharT,_Alloc> *__r,
|
||
|
size_t __size, const __true_type& /*basic char type*/) {
|
||
|
_S_construct_null(__r->_M_data + __size);
|
||
|
_STLP_ASSERT(__r->_M_c_string == __r->_M_data)
|
||
|
}
|
||
|
|
||
|
template <class _CharT, class _Alloc>
|
||
|
void _Terminate_RopeLeaf(_Rope_RopeLeaf<_CharT,_Alloc> *__r,
|
||
|
size_t, const __false_type& /*basic char type*/) {
|
||
|
if (__r->_M_c_string != __r->_M_data && 0 != __r->_M_c_string) {
|
||
|
__r->_M_free_c_string();
|
||
|
__r->_M_c_string = 0;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// As above, but it's OK to clobber original if refcount is 1
|
||
|
template <class _CharT, class _Alloc>
|
||
|
__RopeLeaf__*
|
||
|
rope<_CharT,_Alloc>::_S_destr_leaf_concat_char_iter (_RopeLeaf* __r, const _CharT* __iter, size_t __len) {
|
||
|
//_STLP_ASSERT(__r->_M_ref_count >= 1)
|
||
|
if ( /* __r->_M_ref_count > 1 */ __r->_M_incr() > 2 ) { // - ptr
|
||
|
__r->_M_decr(); // - ptr
|
||
|
return _S_leaf_concat_char_iter(__r, __iter, __len);
|
||
|
}
|
||
|
__r->_M_decr(); // - ptr, __r->_M_ref_count == 1 or 0
|
||
|
size_t __old_len = __r->_M_size._M_data;
|
||
|
if (_S_rounded_up_size(__old_len) == _S_rounded_up_size(__old_len + __len)) {
|
||
|
// The space has been partially initialized for the standard
|
||
|
// character types. But that doesn't matter for those types.
|
||
|
_STLP_PRIV __ucopy_n(__iter, __len, __r->_M_data + __old_len);
|
||
|
_Terminate_RopeLeaf(__r, __old_len + __len, _IsBasicCharType());
|
||
|
__r->_M_size._M_data = __old_len + __len;
|
||
|
// _STLP_ASSERT(__r->_M_ref_count == 1)
|
||
|
// __r->_M_ref_count = 2;
|
||
|
__r->_M_incr(); // i.e. __r->_M_ref_count = 2
|
||
|
return __r;
|
||
|
} else {
|
||
|
_RopeLeaf* __result = _S_leaf_concat_char_iter(__r, __iter, __len);
|
||
|
//_STLP_ASSERT(__result->_M_ref_count == 1)
|
||
|
return __result;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// Assumes left and right are not 0.
|
||
|
// Does not increment (nor decrement on exception) child reference counts.
|
||
|
// Result has ref count 1.
|
||
|
template <class _CharT, class _Alloc>
|
||
|
__RopeRep__*
|
||
|
rope<_CharT,_Alloc>::_S_tree_concat (_RopeRep* __left, _RopeRep* __right) {
|
||
|
_RopeConcatenation* __result =
|
||
|
_S_new_RopeConcatenation(__left, __right, __left->get_allocator());
|
||
|
size_t __depth = __result->_M_depth;
|
||
|
|
||
|
_STLP_ASSERT(__left->get_allocator() == __right->get_allocator())
|
||
|
if (__depth > 20 && (__result->_M_size._M_data < 1000 ||
|
||
|
__depth > _RopeRep::_S_max_rope_depth)) {
|
||
|
_RopeRep* __balanced;
|
||
|
|
||
|
_STLP_TRY {
|
||
|
__balanced = _S_balance(__result);
|
||
|
// _STLP_ASSERT(__result == __balanced ||
|
||
|
// 1 == __result->_M_ref_count &&
|
||
|
// 1 == __balanced->_M_ref_count)
|
||
|
__result->_M_unref_nonnil();
|
||
|
}
|
||
|
_STLP_UNWIND((_STLP_CREATE_ALLOCATOR(allocator_type,(allocator_type&)__left->_M_size,
|
||
|
_RopeConcatenation).deallocate(__result,1)))
|
||
|
// In case of exception, we need to deallocate
|
||
|
// otherwise dangling result node. But caller
|
||
|
// still owns its children. Thus unref is
|
||
|
// inappropriate.
|
||
|
return __balanced;
|
||
|
} else {
|
||
|
return __result;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
template <class _CharT, class _Alloc>
|
||
|
__RopeRep__*
|
||
|
rope<_CharT,_Alloc>::_S_concat_char_iter (_RopeRep* __r,
|
||
|
const _CharT*__s, size_t __slen) {
|
||
|
_RopeRep* __result;
|
||
|
if (0 == __slen) {
|
||
|
_S_ref(__r);
|
||
|
return __r;
|
||
|
}
|
||
|
if (0 == __r)
|
||
|
return _S_RopeLeaf_from_unowned_char_ptr(__s, __slen, __r->get_allocator());
|
||
|
if (_RopeRep::_S_leaf == __r->_M_tag &&
|
||
|
__r->_M_size._M_data + __slen <= _S_copy_max) {
|
||
|
__result = _S_leaf_concat_char_iter((_RopeLeaf*)__r, __s, __slen);
|
||
|
// _STLP_ASSERT(1 == __result->_M_ref_count)
|
||
|
return __result;
|
||
|
}
|
||
|
if (_RopeRep::_S_concat == __r->_M_tag &&
|
||
|
_RopeRep::_S_leaf == ((_RopeConcatenation*)__r)->_M_right->_M_tag) {
|
||
|
_RopeLeaf* __right = (_RopeLeaf* )(((_RopeConcatenation* )__r)->_M_right);
|
||
|
if (__right->_M_size._M_data + __slen <= _S_copy_max) {
|
||
|
_RopeRep* __left = ((_RopeConcatenation*)__r)->_M_left;
|
||
|
_RopeRep* __nright = _S_leaf_concat_char_iter((_RopeLeaf*)__right, __s, __slen);
|
||
|
__left->_M_ref_nonnil();
|
||
|
_STLP_TRY {
|
||
|
__result = _S_tree_concat(__left, __nright);
|
||
|
}
|
||
|
_STLP_UNWIND(_S_unref(__left); _S_unref(__nright))
|
||
|
// _STLP_ASSERT(1 == __result->_M_ref_count)
|
||
|
return __result;
|
||
|
}
|
||
|
}
|
||
|
_RopeRep* __nright =
|
||
|
_S_RopeLeaf_from_unowned_char_ptr(__s, __slen, __r->get_allocator());
|
||
|
_STLP_TRY {
|
||
|
__r->_M_ref_nonnil();
|
||
|
__result = _S_tree_concat(__r, __nright);
|
||
|
}
|
||
|
_STLP_UNWIND(_S_unref(__r); _S_unref(__nright))
|
||
|
// _STLP_ASSERT(1 == __result->_M_ref_count)
|
||
|
return __result;
|
||
|
}
|
||
|
|
||
|
template <class _CharT, class _Alloc>
|
||
|
__RopeRep__*
|
||
|
rope<_CharT,_Alloc>::_S_destr_concat_char_iter(
|
||
|
_RopeRep* __r, const _CharT* __s, size_t __slen) {
|
||
|
_RopeRep* __result;
|
||
|
if (0 == __r)
|
||
|
return _S_RopeLeaf_from_unowned_char_ptr(__s, __slen,
|
||
|
__r->get_allocator());
|
||
|
// size_t __count = __r->_M_ref_count;
|
||
|
size_t __orig_size = __r->_M_size._M_data;
|
||
|
// _STLP_ASSERT(__count >= 1)
|
||
|
if ( /* __count > 1 */ __r->_M_incr() > 2 ) {
|
||
|
__r->_M_decr();
|
||
|
return _S_concat_char_iter(__r, __s, __slen);
|
||
|
}
|
||
|
if (0 == __slen) {
|
||
|
return __r;
|
||
|
}
|
||
|
__r->_M_decr();
|
||
|
if (__orig_size + __slen <= _S_copy_max && _RopeRep::_S_leaf == __r->_M_tag) {
|
||
|
return _S_destr_leaf_concat_char_iter((_RopeLeaf*)__r, __s, __slen);
|
||
|
}
|
||
|
if (_RopeRep::_S_concat == __r->_M_tag) {
|
||
|
_RopeLeaf* __right = __STATIC_CAST(_RopeLeaf*, __STATIC_CAST(_RopeConcatenation*, __r)->_M_right);
|
||
|
if (_RopeRep::_S_leaf == __right->_M_tag &&
|
||
|
__right->_M_size._M_data + __slen <= _S_copy_max) {
|
||
|
_RopeRep* __new_right = _S_destr_leaf_concat_char_iter(__right, __s, __slen);
|
||
|
if (__right == __new_right) {
|
||
|
// _STLP_ASSERT(__new_right->_M_ref_count == 2)
|
||
|
// __new_right->_M_ref_count = 1;
|
||
|
__new_right->_M_decr();
|
||
|
} else {
|
||
|
// _STLP_ASSERT(__new_right->_M_ref_count >= 1)
|
||
|
__right->_M_unref_nonnil();
|
||
|
}
|
||
|
// _STLP_ASSERT(__r->_M_ref_count == 1)
|
||
|
// __r->_M_ref_count = 2; // One more than before.
|
||
|
__r->_M_incr();
|
||
|
__STATIC_CAST(_RopeConcatenation*, __r)->_M_right = __new_right;
|
||
|
// E.Musser : moved below
|
||
|
// __r->_M_size._M_data = __orig_size + __slen;
|
||
|
if (0 != __r->_M_c_string) {
|
||
|
__r->_M_free_c_string();
|
||
|
__r->_M_c_string = 0;
|
||
|
}
|
||
|
__r->_M_size._M_data = __orig_size + __slen;
|
||
|
return __r;
|
||
|
}
|
||
|
}
|
||
|
_RopeRep* __right =
|
||
|
_S_RopeLeaf_from_unowned_char_ptr(__s, __slen, __r->get_allocator());
|
||
|
__r->_M_ref_nonnil();
|
||
|
_STLP_TRY {
|
||
|
__result = _S_tree_concat(__r, __right);
|
||
|
}
|
||
|
_STLP_UNWIND(_S_unref(__r); _S_unref(__right))
|
||
|
// _STLP_ASSERT(1 == __result->_M_ref_count)
|
||
|
return __result;
|
||
|
}
|
||
|
|
||
|
template <class _CharT, class _Alloc>
|
||
|
__RopeRep__*
|
||
|
rope<_CharT,_Alloc>::_S_concat_rep(_RopeRep* __left, _RopeRep* __right) {
|
||
|
if (0 == __left) {
|
||
|
_S_ref(__right);
|
||
|
return __right;
|
||
|
}
|
||
|
if (0 == __right) {
|
||
|
__left->_M_ref_nonnil();
|
||
|
return __left;
|
||
|
}
|
||
|
if (_RopeRep::_S_leaf == __right->_M_tag) {
|
||
|
if (_RopeRep::_S_leaf == __left->_M_tag) {
|
||
|
if (__right->_M_size._M_data + __left->_M_size._M_data <= _S_copy_max) {
|
||
|
return _S_leaf_concat_char_iter(__STATIC_CAST(_RopeLeaf*, __left),
|
||
|
__STATIC_CAST(_RopeLeaf*, __right)->_M_data,
|
||
|
__right->_M_size._M_data);
|
||
|
}
|
||
|
} else if (_RopeRep::_S_concat == __left->_M_tag &&
|
||
|
_RopeRep::_S_leaf == __STATIC_CAST(_RopeConcatenation*, __left)->_M_right->_M_tag) {
|
||
|
_RopeLeaf* __leftright =
|
||
|
__STATIC_CAST(_RopeLeaf*, __STATIC_CAST(_RopeConcatenation*, __left)->_M_right);
|
||
|
if (__leftright->_M_size._M_data + __right->_M_size._M_data <= _S_copy_max) {
|
||
|
_RopeRep* __leftleft = __STATIC_CAST(_RopeConcatenation*, __left)->_M_left;
|
||
|
_RopeRep* __rest = _S_leaf_concat_char_iter(__leftright,
|
||
|
__STATIC_CAST(_RopeLeaf*, __right)->_M_data,
|
||
|
__right->_M_size._M_data);
|
||
|
__leftleft->_M_ref_nonnil();
|
||
|
_STLP_TRY {
|
||
|
return _S_tree_concat(__leftleft, __rest);
|
||
|
}
|
||
|
_STLP_UNWIND(_S_unref(__leftleft); _S_unref(__rest))
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
__left->_M_ref_nonnil();
|
||
|
__right->_M_ref_nonnil();
|
||
|
_STLP_TRY {
|
||
|
return _S_tree_concat(__left, __right);
|
||
|
}
|
||
|
_STLP_UNWIND(_S_unref(__left); _S_unref(__right))
|
||
|
_STLP_RET_AFTER_THROW(0)
|
||
|
}
|
||
|
|
||
|
template <class _CharT, class _Alloc>
|
||
|
__RopeRep__*
|
||
|
rope<_CharT,_Alloc>::_S_substring(_RopeRep* __base,
|
||
|
size_t __start, size_t __endp1) {
|
||
|
if (0 == __base) return 0;
|
||
|
size_t __len = __base->_M_size._M_data;
|
||
|
size_t __adj_endp1;
|
||
|
const size_t __lazy_threshold = 128;
|
||
|
|
||
|
if (__endp1 >= __len) {
|
||
|
if (0 == __start) {
|
||
|
__base->_M_ref_nonnil();
|
||
|
return __base;
|
||
|
} else {
|
||
|
__adj_endp1 = __len;
|
||
|
}
|
||
|
} else {
|
||
|
__adj_endp1 = __endp1;
|
||
|
}
|
||
|
switch(__base->_M_tag) {
|
||
|
case _RopeRep::_S_concat:
|
||
|
{
|
||
|
_RopeConcatenation* __c = __STATIC_CAST(_RopeConcatenation*, __base);
|
||
|
_RopeRep* __left = __c->_M_left;
|
||
|
_RopeRep* __right = __c->_M_right;
|
||
|
size_t __left_len = __left->_M_size._M_data;
|
||
|
_RopeRep* __result;
|
||
|
|
||
|
if (__adj_endp1 <= __left_len) {
|
||
|
return _S_substring(__left, __start, __endp1);
|
||
|
} else if (__start >= __left_len) {
|
||
|
return _S_substring(__right, __start - __left_len,
|
||
|
__adj_endp1 - __left_len);
|
||
|
}
|
||
|
_Self_destruct_ptr __left_result(_S_substring(__left, __start, __left_len));
|
||
|
_Self_destruct_ptr __right_result(_S_substring(__right, 0, __endp1 - __left_len));
|
||
|
_STLP_MPWFIX_TRY //*TY 06/01/2000 - mpw forgets to call dtor on __left_result and __right_result without this try block
|
||
|
__result = _S_concat_rep(__left_result, __right_result);
|
||
|
// _STLP_ASSERT(1 == __result->_M_ref_count)
|
||
|
return __result;
|
||
|
_STLP_MPWFIX_CATCH //*TY 06/01/2000 -
|
||
|
}
|
||
|
case _RopeRep::_S_leaf:
|
||
|
{
|
||
|
_RopeLeaf* __l = __STATIC_CAST(_RopeLeaf*, __base);
|
||
|
_RopeLeaf* __result;
|
||
|
size_t __result_len;
|
||
|
if (__start >= __adj_endp1) return 0;
|
||
|
__result_len = __adj_endp1 - __start;
|
||
|
if (__result_len > __lazy_threshold) goto lazy;
|
||
|
const _CharT* __section = __l->_M_data + __start;
|
||
|
// We should sometimes create substring node instead.
|
||
|
__result = _S_RopeLeaf_from_unowned_char_ptr(__section, __result_len,
|
||
|
__base->get_allocator());
|
||
|
return __result;
|
||
|
}
|
||
|
case _RopeRep::_S_substringfn:
|
||
|
// Avoid introducing multiple layers of substring nodes.
|
||
|
{
|
||
|
_RopeSubstring* __old = __STATIC_CAST(_RopeSubstring*, __base);
|
||
|
size_t __result_len;
|
||
|
if (__start >= __adj_endp1) return 0;
|
||
|
__result_len = __adj_endp1 - __start;
|
||
|
if (__result_len > __lazy_threshold) {
|
||
|
_RopeSubstring* __result = _S_new_RopeSubstring(__old->_M_base,
|
||
|
__start + __old->_M_start,
|
||
|
__adj_endp1 - __start,
|
||
|
__base->get_allocator());
|
||
|
return __result;
|
||
|
} // *** else fall through: ***
|
||
|
}
|
||
|
case _RopeRep::_S_function:
|
||
|
{
|
||
|
_RopeFunction* __f = __STATIC_CAST(_RopeFunction*, __base);
|
||
|
if (__start >= __adj_endp1) return 0;
|
||
|
size_t __result_len = __adj_endp1 - __start;
|
||
|
|
||
|
if (__result_len > __lazy_threshold) goto lazy;
|
||
|
_CharT* __section = __base->_M_size.allocate(_S_rounded_up_size(__result_len));
|
||
|
_STLP_TRY {
|
||
|
(*(__f->_M_fn))(__start, __result_len, __section);
|
||
|
}
|
||
|
_STLP_UNWIND(_RopeRep::_S_free_string(__section,
|
||
|
__result_len, __base->get_allocator()))
|
||
|
_S_construct_null(__section + __result_len);
|
||
|
return _S_new_RopeLeaf(__section, __result_len,
|
||
|
__base->get_allocator());
|
||
|
}
|
||
|
}
|
||
|
/*NOTREACHED*/
|
||
|
_STLP_ASSERT(false)
|
||
|
lazy:
|
||
|
{
|
||
|
// Create substring node.
|
||
|
return _S_new_RopeSubstring(__base, __start, __adj_endp1 - __start,
|
||
|
__base->get_allocator());
|
||
|
}
|
||
|
}
|
||
|
|
||
|
template<class _CharT>
|
||
|
class _Rope_flatten_char_consumer : public _Rope_char_consumer<_CharT> {
|
||
|
private:
|
||
|
_CharT* _M_buf_ptr;
|
||
|
public:
|
||
|
_Rope_flatten_char_consumer(_CharT* __buffer) {
|
||
|
_M_buf_ptr = __buffer;
|
||
|
}
|
||
|
~_Rope_flatten_char_consumer() {}
|
||
|
bool operator() (const _CharT* __leaf, size_t __n) {
|
||
|
_STLP_PRIV __ucopy_n(__leaf, __n, _M_buf_ptr);
|
||
|
_M_buf_ptr += __n;
|
||
|
return true;
|
||
|
}
|
||
|
};
|
||
|
|
||
|
template<class _CharT>
|
||
|
class _Rope_find_char_char_consumer : public _Rope_char_consumer<_CharT> {
|
||
|
private:
|
||
|
_CharT _M_pattern;
|
||
|
public:
|
||
|
size_t _M_count; // Number of nonmatching characters
|
||
|
_Rope_find_char_char_consumer(_CharT __p)
|
||
|
: _M_pattern(__p), _M_count(0) {}
|
||
|
~_Rope_find_char_char_consumer() {}
|
||
|
bool operator() (const _CharT* __leaf, size_t __n) {
|
||
|
size_t __i;
|
||
|
for (__i = 0; __i < __n; ++__i) {
|
||
|
if (__leaf[__i] == _M_pattern) {
|
||
|
_M_count += __i; return false;
|
||
|
}
|
||
|
}
|
||
|
_M_count += __n; return true;
|
||
|
}
|
||
|
};
|
||
|
|
||
|
#if !defined (_STLP_USE_NO_IOSTREAMS)
|
||
|
template<class _CharT, class _Traits>
|
||
|
// Here _CharT is both the stream and rope character type.
|
||
|
class _Rope_insert_char_consumer : public _Rope_char_consumer<_CharT> {
|
||
|
private:
|
||
|
typedef basic_ostream<_CharT,_Traits> _Insert_ostream;
|
||
|
typedef _Rope_insert_char_consumer<_CharT,_Traits> _Self;
|
||
|
_Insert_ostream& _M_o;
|
||
|
|
||
|
//explicitely defined as private to avoid warnings:
|
||
|
_Self& operator = (_Self const&);
|
||
|
public:
|
||
|
_Rope_insert_char_consumer(_Insert_ostream& __writer)
|
||
|
: _M_o(__writer) {}
|
||
|
~_Rope_insert_char_consumer() {}
|
||
|
// Caller is presumed to own the ostream
|
||
|
bool operator() (const _CharT* __leaf, size_t __n);
|
||
|
// Returns true to continue traversal.
|
||
|
};
|
||
|
|
||
|
template<class _CharT, class _Traits>
|
||
|
bool _Rope_insert_char_consumer<_CharT, _Traits>::operator()
|
||
|
(const _CharT* __leaf, size_t __n) {
|
||
|
size_t __i;
|
||
|
// We assume that formatting is set up correctly for each element.
|
||
|
for (__i = 0; __i < __n; ++__i) _M_o.put(__leaf[__i]);
|
||
|
return true;
|
||
|
}
|
||
|
#endif /* !_STLP_USE_NO_IOSTREAMS */
|
||
|
|
||
|
template <class _CharT, class _Alloc, class _CharConsumer>
|
||
|
bool _S_apply_to_pieces(_CharConsumer& __c,
|
||
|
_Rope_RopeRep<_CharT, _Alloc> * __r,
|
||
|
size_t __begin, size_t __end) {
|
||
|
typedef _Rope_RopeRep<_CharT, _Alloc> _RopeRep;
|
||
|
typedef _Rope_RopeConcatenation<_CharT,_Alloc> _RopeConcatenation;
|
||
|
typedef _Rope_RopeLeaf<_CharT,_Alloc> _RopeLeaf;
|
||
|
typedef _Rope_RopeFunction<_CharT,_Alloc> _RopeFunction;
|
||
|
|
||
|
if (0 == __r) return true;
|
||
|
switch(__r->_M_tag) {
|
||
|
case _RopeRep::_S_concat:
|
||
|
{
|
||
|
_RopeConcatenation* __conc = __STATIC_CAST(_RopeConcatenation*, __r);
|
||
|
_RopeRep* __left = __conc->_M_left;
|
||
|
size_t __left_len = __left->_M_size._M_data;
|
||
|
if (__begin < __left_len) {
|
||
|
size_t __left_end = (min) (__left_len, __end);
|
||
|
if (!_S_apply_to_pieces(__c, __left, __begin, __left_end))
|
||
|
return false;
|
||
|
}
|
||
|
if (__end > __left_len) {
|
||
|
_RopeRep* __right = __conc->_M_right;
|
||
|
size_t __right_start = (max)(__left_len, __begin);
|
||
|
if (!_S_apply_to_pieces(__c, __right,
|
||
|
__right_start - __left_len,
|
||
|
__end - __left_len)) {
|
||
|
return false;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
return true;
|
||
|
case _RopeRep::_S_leaf:
|
||
|
{
|
||
|
_RopeLeaf* __l = __STATIC_CAST(_RopeLeaf*, __r);
|
||
|
return __c(__l->_M_data + __begin, __end - __begin);
|
||
|
}
|
||
|
case _RopeRep::_S_function:
|
||
|
case _RopeRep::_S_substringfn:
|
||
|
{
|
||
|
_RopeFunction* __f = __STATIC_CAST(_RopeFunction*, __r);
|
||
|
size_t __len = __end - __begin;
|
||
|
bool __result;
|
||
|
_CharT* __buffer = __r->get_allocator().allocate(__len);
|
||
|
_STLP_TRY {
|
||
|
(*(__f->_M_fn))(__begin, __len, __buffer);
|
||
|
__result = __c(__buffer, __len);
|
||
|
__r->get_allocator().deallocate(__buffer, __len);
|
||
|
}
|
||
|
_STLP_UNWIND((__r->get_allocator().deallocate(__buffer, __len)))
|
||
|
return __result;
|
||
|
}
|
||
|
default:
|
||
|
_STLP_ASSERT(false)
|
||
|
/*NOTREACHED*/
|
||
|
return false;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
#if !defined (_STLP_USE_NO_IOSTREAMS)
|
||
|
template<class _CharT, class _Traits>
|
||
|
inline void _Rope_fill(basic_ostream<_CharT, _Traits>& __o, streamsize __n) {
|
||
|
char __f = __o.fill();
|
||
|
for (streamsize __i = 0; __i < __n; ++__i) __o.put(__f);
|
||
|
}
|
||
|
|
||
|
template<class _CharT, class _Traits, class _Alloc>
|
||
|
basic_ostream<_CharT, _Traits>& _S_io_get(basic_ostream<_CharT, _Traits>& __o,
|
||
|
const rope<_CharT, _Alloc>& __r, const __true_type& /*_IsBasicCharType*/) {
|
||
|
streamsize __w = __o.width();
|
||
|
const bool __left = (__o.flags() & ios::left) != 0;
|
||
|
size_t __rope_len = __r.size();
|
||
|
_Rope_insert_char_consumer<_CharT, _Traits> __c(__o);
|
||
|
|
||
|
const bool __need_pad = (((sizeof(streamsize) > sizeof(size_t)) && (__STATIC_CAST(streamsize, __rope_len) < __w)) ||
|
||
|
((sizeof(streamsize) <= sizeof(size_t)) && (__rope_len < __STATIC_CAST(size_t, __w))));
|
||
|
streamsize __pad_len = __need_pad ? __w - __rope_len : 0;
|
||
|
|
||
|
if (!__left && __pad_len > 0) {
|
||
|
_Rope_fill(__o, __pad_len);
|
||
|
}
|
||
|
__r.apply_to_pieces(0, __rope_len, __c);
|
||
|
if (__left && __pad_len > 0) {
|
||
|
_Rope_fill(__o, __pad_len);
|
||
|
}
|
||
|
return __o;
|
||
|
}
|
||
|
|
||
|
template<class _CharT, class _Traits, class _Alloc>
|
||
|
basic_ostream<_CharT, _Traits>& _S_io_get(basic_ostream<_CharT, _Traits>& __o,
|
||
|
const rope<_CharT, _Alloc>& __r, const __false_type& /*_IsBasicCharType*/) {
|
||
|
streamsize __w = __o.width();
|
||
|
size_t __rope_len = __r.size();
|
||
|
_Rope_insert_char_consumer<_CharT, _Traits> __c(__o);
|
||
|
|
||
|
__o.width(__w /__rope_len);
|
||
|
_STLP_TRY {
|
||
|
__r.apply_to_pieces(0, __rope_len, __c);
|
||
|
__o.width(__w);
|
||
|
}
|
||
|
_STLP_UNWIND(__o.width(__w))
|
||
|
return __o;
|
||
|
}
|
||
|
|
||
|
template<class _CharT, class _Traits, class _Alloc>
|
||
|
basic_ostream<_CharT, _Traits>& operator<<(basic_ostream<_CharT, _Traits>& __o,
|
||
|
const rope<_CharT, _Alloc>& __r) {
|
||
|
typedef typename _IsIntegral<_CharT>::_Ret _Char_Is_Integral;
|
||
|
return _S_io_get(__o, __r, _Char_Is_Integral());
|
||
|
}
|
||
|
#endif /* NO_IOSTREAMS */
|
||
|
|
||
|
template <class _CharT, class _Alloc>
|
||
|
_CharT* rope<_CharT,_Alloc>::_S_flatten(_RopeRep* __r,
|
||
|
size_t __start, size_t __len,
|
||
|
_CharT* __buffer) {
|
||
|
_Rope_flatten_char_consumer<_CharT> __c(__buffer);
|
||
|
_S_apply_to_pieces(__c, __r, __start, __start + __len);
|
||
|
return(__buffer + __len);
|
||
|
}
|
||
|
|
||
|
template <class _CharT, class _Alloc>
|
||
|
size_t rope<_CharT,_Alloc>::find(_CharT __pattern, size_t __start) const {
|
||
|
_Rope_find_char_char_consumer<_CharT> __c(__pattern);
|
||
|
_S_apply_to_pieces(__c, _M_tree_ptr._M_data, __start, size());
|
||
|
size_type __result_pos = __start + __c._M_count;
|
||
|
#ifndef _STLP_OLD_ROPE_SEMANTICS
|
||
|
if (__result_pos == size()) __result_pos = npos;
|
||
|
#endif
|
||
|
return __result_pos;
|
||
|
}
|
||
|
|
||
|
template <class _CharT, class _Alloc>
|
||
|
_CharT*
|
||
|
rope<_CharT,_Alloc>::_S_flatten(_Rope_RopeRep<_CharT, _Alloc>* __r, _CharT* __buffer) {
|
||
|
if (0 == __r) return __buffer;
|
||
|
switch(__r->_M_tag) {
|
||
|
case _RopeRep::_S_concat:
|
||
|
{
|
||
|
_RopeConcatenation* __c = __STATIC_CAST(_RopeConcatenation*, __r);
|
||
|
_RopeRep* __left = __c->_M_left;
|
||
|
_RopeRep* __right = __c->_M_right;
|
||
|
_CharT* __rest = _S_flatten(__left, __buffer);
|
||
|
return _S_flatten(__right, __rest);
|
||
|
}
|
||
|
case _RopeRep::_S_leaf:
|
||
|
{
|
||
|
_RopeLeaf* __l = __STATIC_CAST(_RopeLeaf*, __r);
|
||
|
return _STLP_PRIV __ucopy_n(__l->_M_data, __l->_M_size._M_data, __buffer).second;
|
||
|
}
|
||
|
case _RopeRep::_S_function:
|
||
|
case _RopeRep::_S_substringfn:
|
||
|
// We dont yet do anything with substring nodes.
|
||
|
// This needs to be fixed before ropefiles will work well.
|
||
|
{
|
||
|
_RopeFunction* __f = __STATIC_CAST(_RopeFunction*, __r);
|
||
|
(*(__f->_M_fn))(0, __f->_M_size._M_data, __buffer);
|
||
|
return __buffer + __f->_M_size._M_data;
|
||
|
}
|
||
|
default:
|
||
|
_STLP_ASSERT(false)
|
||
|
/*NOTREACHED*/
|
||
|
return 0;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
#ifdef _STLP_DEBUG
|
||
|
// This needs work for _CharT != char
|
||
|
template <class _CharT, class _Alloc>
|
||
|
void rope<_CharT,_Alloc>::_S_dump(_RopeRep* __r, int __indent) {
|
||
|
for (int __i = 0; __i < __indent; ++__i) putchar(' ');
|
||
|
if (0 == __r) {
|
||
|
printf("NULL\n"); return;
|
||
|
}
|
||
|
if (_RopeRep::_S_concat == __r->_M_tag) {
|
||
|
_RopeConcatenation* __c = __STATIC_CAST(_RopeConcatenation*, __r);
|
||
|
_RopeRep* __left = __c->_M_left;
|
||
|
_RopeRep* __right = __c->_M_right;
|
||
|
printf("Concatenation %p (rc = %ld, depth = %d, len = %ld, %s balanced)\n",
|
||
|
__r, __r->_M_ref_count, __r->_M_depth, __r->_M_size._M_data,
|
||
|
__r->_M_is_balanced? "" : "not");
|
||
|
_S_dump(__left, __indent + 2);
|
||
|
_S_dump(__right, __indent + 2);
|
||
|
return;
|
||
|
}
|
||
|
else {
|
||
|
const char* __kind;
|
||
|
|
||
|
switch (__r->_M_tag) {
|
||
|
case _RopeRep::_S_leaf:
|
||
|
__kind = "Leaf";
|
||
|
break;
|
||
|
case _RopeRep::_S_function:
|
||
|
__kind = "Function";
|
||
|
break;
|
||
|
case _RopeRep::_S_substringfn:
|
||
|
__kind = "Function representing substring";
|
||
|
break;
|
||
|
default:
|
||
|
__kind = "(corrupted kind field!)";
|
||
|
}
|
||
|
printf("%s %p (rc = %ld, depth = %d, len = %ld) ",
|
||
|
__kind, __r, __r->_M_ref_count, __r->_M_depth, __r->_M_size._M_data);
|
||
|
if (sizeof(_CharT) == 1) {
|
||
|
const int __max_len = 40;
|
||
|
_Self_destruct_ptr __prefix(_S_substring(__r, 0, __max_len));
|
||
|
_CharT __buffer[__max_len + 1];
|
||
|
bool __too_big = __r->_M_size._M_data > __prefix->_M_size._M_data;
|
||
|
|
||
|
_S_flatten(__prefix, __buffer);
|
||
|
__buffer[__prefix->_M_size._M_data] = _STLP_DEFAULT_CONSTRUCTED(_CharT);
|
||
|
printf("%s%s\n", (char*)__buffer, __too_big? "...\n" : "\n");
|
||
|
} else {
|
||
|
printf("\n");
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
#endif /* _STLP_DEBUG */
|
||
|
|
||
|
# define __ROPE_TABLE_BODY = { \
|
||
|
/* 0 */1, /* 1 */2, /* 2 */3, /* 3 */5, /* 4 */8, /* 5 */13, /* 6 */21, \
|
||
|
/* 7 */34, /* 8 */55, /* 9 */89, /* 10 */144, /* 11 */233, /* 12 */377, \
|
||
|
/* 13 */610, /* 14 */987, /* 15 */1597, /* 16 */2584, /* 17 */4181, \
|
||
|
/* 18 */6765ul, /* 19 */10946ul, /* 20 */17711ul, /* 21 */28657ul, /* 22 */46368ul, \
|
||
|
/* 23 */75025ul, /* 24 */121393ul, /* 25 */196418ul, /* 26 */317811ul, \
|
||
|
/* 27 */514229ul, /* 28 */832040ul, /* 29 */1346269ul, /* 30 */2178309ul, \
|
||
|
/* 31 */3524578ul, /* 32 */5702887ul, /* 33 */9227465ul, /* 34 */14930352ul, \
|
||
|
/* 35 */24157817ul, /* 36 */39088169ul, /* 37 */63245986ul, /* 38 */102334155ul, \
|
||
|
/* 39 */165580141ul, /* 40 */267914296ul, /* 41 */433494437ul, \
|
||
|
/* 42 */701408733ul, /* 43 */1134903170ul, /* 44 */1836311903ul, \
|
||
|
/* 45 */2971215073ul }
|
||
|
|
||
|
template <class _CharT, class _Alloc>
|
||
|
const unsigned long
|
||
|
rope<_CharT,_Alloc>::_S_min_len[__ROPE_DEPTH_SIZE] __ROPE_TABLE_BODY;
|
||
|
# undef __ROPE_DEPTH_SIZE
|
||
|
# undef __ROPE_MAX_DEPTH
|
||
|
# undef __ROPE_TABLE_BODY
|
||
|
|
||
|
// These are Fibonacci numbers < 2**32.
|
||
|
|
||
|
template <class _CharT, class _Alloc>
|
||
|
__RopeRep__* rope<_CharT,_Alloc>::_S_balance(_RopeRep* __r) {
|
||
|
_RopeRep* __forest[_RopeRep::_S_max_rope_depth + 1] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
|
||
|
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
|
||
|
0,0,0,0,0,0};
|
||
|
_RopeRep* __result = 0;
|
||
|
int __i;
|
||
|
// Invariant:
|
||
|
// The concatenation of forest in descending order is equal to __r.
|
||
|
// __forest[__i]._M_size._M_data >= _S_min_len[__i]
|
||
|
// __forest[__i]._M_depth = __i
|
||
|
// References from forest are included in refcount.
|
||
|
|
||
|
_STLP_TRY {
|
||
|
_S_add_to_forest(__r, __forest);
|
||
|
for (__i = 0; __i <= _RopeRep::_S_max_rope_depth; ++__i)
|
||
|
if (0 != __forest[__i]) {
|
||
|
_Self_destruct_ptr __old(__result);
|
||
|
__result = _S_concat_rep(__forest[__i], __result);
|
||
|
__forest[__i]->_M_unref_nonnil();
|
||
|
# ifdef _STLP_USE_EXCEPTIONS
|
||
|
__forest[__i] = 0;
|
||
|
# endif
|
||
|
}
|
||
|
}
|
||
|
_STLP_UNWIND(for(__i = 0; __i <= _RopeRep::_S_max_rope_depth; ++__i)
|
||
|
_S_unref(__forest[__i]))
|
||
|
if (__result->_M_depth > _RopeRep::_S_max_rope_depth) {
|
||
|
__stl_throw_range_error("rope too long");
|
||
|
}
|
||
|
return(__result);
|
||
|
}
|
||
|
|
||
|
|
||
|
template <class _CharT, class _Alloc>
|
||
|
void
|
||
|
rope<_CharT,_Alloc>::_S_add_to_forest(_RopeRep* __r, _RopeRep** __forest)
|
||
|
{
|
||
|
if (__r -> _M_is_balanced) {
|
||
|
_S_add_leaf_to_forest(__r, __forest);
|
||
|
return;
|
||
|
}
|
||
|
_STLP_ASSERT(__r->_M_tag == _RopeRep::_S_concat)
|
||
|
{
|
||
|
_RopeConcatenation* __c = (_RopeConcatenation*)__r;
|
||
|
|
||
|
_S_add_to_forest(__c->_M_left, __forest);
|
||
|
_S_add_to_forest(__c->_M_right, __forest);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
|
||
|
template <class _CharT, class _Alloc>
|
||
|
void
|
||
|
rope<_CharT,_Alloc>::_S_add_leaf_to_forest(_RopeRep* __r, _RopeRep** __forest)
|
||
|
{
|
||
|
_RopeRep* __insertee; // included in refcount
|
||
|
_RopeRep* __too_tiny = 0; // included in refcount
|
||
|
int __i; // forest[0..__i-1] is empty
|
||
|
size_t __s = __r->_M_size._M_data;
|
||
|
|
||
|
for (__i = 0; __s >= _S_min_len[__i+1]/* not this bucket */; ++__i) {
|
||
|
if (0 != __forest[__i]) {
|
||
|
_Self_destruct_ptr __old(__too_tiny);
|
||
|
__too_tiny = _S_concat_and_set_balanced(__forest[__i], __too_tiny);
|
||
|
__forest[__i]->_M_unref_nonnil();
|
||
|
__forest[__i] = 0;
|
||
|
}
|
||
|
}
|
||
|
{
|
||
|
_Self_destruct_ptr __old(__too_tiny);
|
||
|
__insertee = _S_concat_and_set_balanced(__too_tiny, __r);
|
||
|
}
|
||
|
// Too_tiny dead, and no longer included in refcount.
|
||
|
// Insertee is live and included.
|
||
|
_STLP_ASSERT(_S_is_almost_balanced(__insertee))
|
||
|
_STLP_ASSERT(__insertee->_M_depth <= __r->_M_depth + 1)
|
||
|
for (;; ++__i) {
|
||
|
if (0 != __forest[__i]) {
|
||
|
_Self_destruct_ptr __old(__insertee);
|
||
|
__insertee = _S_concat_and_set_balanced(__forest[__i], __insertee);
|
||
|
__forest[__i]->_M_unref_nonnil();
|
||
|
__forest[__i] = 0;
|
||
|
_STLP_ASSERT(_S_is_almost_balanced(__insertee))
|
||
|
}
|
||
|
_STLP_ASSERT(_S_min_len[__i] <= __insertee->_M_size._M_data)
|
||
|
_STLP_ASSERT(__forest[__i] == 0)
|
||
|
if (__i == _RopeRep::_S_max_rope_depth ||
|
||
|
__insertee->_M_size._M_data < _S_min_len[__i+1]) {
|
||
|
__forest[__i] = __insertee;
|
||
|
// refcount is OK since __insertee is now dead.
|
||
|
return;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
template <class _CharT, class _Alloc>
|
||
|
_CharT
|
||
|
rope<_CharT,_Alloc>::_S_fetch(_RopeRep* __r, size_type __i)
|
||
|
{
|
||
|
_CharT* __cstr = __r->_M_c_string;
|
||
|
|
||
|
_STLP_ASSERT(__i < __r->_M_size._M_data)
|
||
|
if (0 != __cstr) return __cstr[__i];
|
||
|
for(;;) {
|
||
|
switch(__r->_M_tag) {
|
||
|
case _RopeRep::_S_concat:
|
||
|
{
|
||
|
_RopeConcatenation* __c = (_RopeConcatenation*)__r;
|
||
|
_RopeRep* __left = __c->_M_left;
|
||
|
size_t __left_len = __left->_M_size._M_data;
|
||
|
|
||
|
if (__i >= __left_len) {
|
||
|
__i -= __left_len;
|
||
|
__r = __c->_M_right;
|
||
|
} else {
|
||
|
__r = __left;
|
||
|
}
|
||
|
}
|
||
|
break;
|
||
|
case _RopeRep::_S_leaf:
|
||
|
{
|
||
|
_RopeLeaf* __l = (_RopeLeaf*)__r;
|
||
|
return __l->_M_data[__i];
|
||
|
}
|
||
|
case _RopeRep::_S_function:
|
||
|
case _RopeRep::_S_substringfn:
|
||
|
{
|
||
|
_RopeFunction* __f = (_RopeFunction*)__r;
|
||
|
_CharT __result;
|
||
|
|
||
|
(*(__f->_M_fn))(__i, 1, &__result);
|
||
|
return __result;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
#if defined(_STLP_NEED_UNREACHABLE_RETURN)
|
||
|
return 0;
|
||
|
#endif
|
||
|
}
|
||
|
|
||
|
// Return a uniquely referenced character slot for the given
|
||
|
// position, or 0 if that's not possible.
|
||
|
template <class _CharT, class _Alloc>
|
||
|
_CharT*
|
||
|
rope<_CharT,_Alloc>::_S_fetch_ptr(_RopeRep* __r, size_type __i)
|
||
|
{
|
||
|
_RopeRep* __clrstack[_RopeRep::_S_max_rope_depth];
|
||
|
size_t __csptr = 0;
|
||
|
|
||
|
for(;;) {
|
||
|
// if (__r->_M_ref_count > 1) return 0;
|
||
|
if ( __r->_M_incr() > 2 ) {
|
||
|
__r->_M_decr();
|
||
|
return 0;
|
||
|
}
|
||
|
switch(__r->_M_tag) {
|
||
|
case _RopeRep::_S_concat:
|
||
|
{
|
||
|
_RopeConcatenation* __c = (_RopeConcatenation*)__r;
|
||
|
_RopeRep* __left = __c->_M_left;
|
||
|
size_t __left_len = __left->_M_size._M_data;
|
||
|
|
||
|
if (__c->_M_c_string != 0) __clrstack[__csptr++] = __c;
|
||
|
if (__i >= __left_len) {
|
||
|
__i -= __left_len;
|
||
|
__r = __c->_M_right;
|
||
|
} else {
|
||
|
__r = __left;
|
||
|
}
|
||
|
}
|
||
|
break;
|
||
|
case _RopeRep::_S_leaf:
|
||
|
{
|
||
|
_RopeLeaf* __l = (_RopeLeaf*)__r;
|
||
|
if (__l->_M_c_string != __l->_M_data && __l->_M_c_string != 0)
|
||
|
__clrstack[__csptr++] = __l;
|
||
|
while (__csptr > 0) {
|
||
|
-- __csptr;
|
||
|
_RopeRep* __d = __clrstack[__csptr];
|
||
|
__d->_M_free_c_string();
|
||
|
__d->_M_c_string = 0;
|
||
|
}
|
||
|
return __l->_M_data + __i;
|
||
|
}
|
||
|
case _RopeRep::_S_function:
|
||
|
case _RopeRep::_S_substringfn:
|
||
|
return 0;
|
||
|
}
|
||
|
}
|
||
|
#if defined(_STLP_NEED_UNREACHABLE_RETURN)
|
||
|
return 0;
|
||
|
#endif
|
||
|
|
||
|
}
|
||
|
|
||
|
// The following could be implemented trivially using
|
||
|
// lexicographical_compare_3way.
|
||
|
// We do a little more work to avoid dealing with rope iterators for
|
||
|
// flat strings.
|
||
|
template <class _CharT, class _Alloc>
|
||
|
int
|
||
|
rope<_CharT,_Alloc>::_S_compare (const _RopeRep* __left,
|
||
|
const _RopeRep* __right) {
|
||
|
size_t __left_len;
|
||
|
size_t __right_len;
|
||
|
|
||
|
if (0 == __right) return 0 != __left;
|
||
|
if (0 == __left) return -1;
|
||
|
__left_len = __left->_M_size._M_data;
|
||
|
__right_len = __right->_M_size._M_data;
|
||
|
if (_RopeRep::_S_leaf == __left->_M_tag) {
|
||
|
const _RopeLeaf* __l = __STATIC_CAST(const _RopeLeaf*, __left);
|
||
|
if (_RopeRep::_S_leaf == __right->_M_tag) {
|
||
|
const _RopeLeaf* __r = __STATIC_CAST(const _RopeLeaf*, __right);
|
||
|
return _STLP_PRIV __lexicographical_compare_3way(__l->_M_data, __l->_M_data + __left_len,
|
||
|
__r->_M_data, __r->_M_data + __right_len);
|
||
|
}
|
||
|
else {
|
||
|
const_iterator __rstart(__right, 0);
|
||
|
const_iterator __rend(__right, __right_len);
|
||
|
return _STLP_PRIV __lexicographical_compare_3way(__l->_M_data, __l->_M_data + __left_len,
|
||
|
__rstart, __rend);
|
||
|
}
|
||
|
}
|
||
|
else {
|
||
|
const_iterator __lstart(__left, 0);
|
||
|
const_iterator __lend(__left, __left_len);
|
||
|
if (_RopeRep::_S_leaf == __right->_M_tag) {
|
||
|
const _RopeLeaf* __r = __STATIC_CAST(const _RopeLeaf*, __right);
|
||
|
return _STLP_PRIV __lexicographical_compare_3way(__lstart, __lend,
|
||
|
__r->_M_data, __r->_M_data + __right_len);
|
||
|
}
|
||
|
else {
|
||
|
const_iterator __rstart(__right, 0);
|
||
|
const_iterator __rend(__right, __right_len);
|
||
|
return _STLP_PRIV __lexicographical_compare_3way(__lstart, __lend, __rstart, __rend);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// Assignment to reference proxies.
|
||
|
template <class _CharT, class _Alloc>
|
||
|
_Rope_char_ref_proxy<_CharT, _Alloc>&
|
||
|
_Rope_char_ref_proxy<_CharT, _Alloc>::operator= (_CharT __c) {
|
||
|
_RopeRep* __old = _M_root->_M_tree_ptr._M_data;
|
||
|
// First check for the case in which everything is uniquely
|
||
|
// referenced. In that case we can do this destructively.
|
||
|
_CharT* __ptr = _My_rope::_S_fetch_ptr(__old, _M_pos);
|
||
|
if (0 != __ptr) {
|
||
|
*__ptr = __c;
|
||
|
return *this;
|
||
|
}
|
||
|
_Self_destruct_ptr __left(
|
||
|
_My_rope::_S_substring(__old, 0, _M_pos));
|
||
|
_Self_destruct_ptr __right(
|
||
|
_My_rope::_S_substring(__old, _M_pos+1, __old->_M_size._M_data));
|
||
|
_Self_destruct_ptr __result_left(
|
||
|
_My_rope::_S_destr_concat_char_iter(__left, &__c, 1));
|
||
|
|
||
|
// _STLP_ASSERT(__left == __result_left || 1 == __result_left->_M_ref_count)
|
||
|
_RopeRep* __result =
|
||
|
_My_rope::_S_concat_rep(__result_left, __right);
|
||
|
// _STLP_ASSERT(1 <= __result->_M_ref_count)
|
||
|
_RopeRep::_S_unref(__old);
|
||
|
_M_root->_M_tree_ptr._M_data = __result;
|
||
|
return *this;
|
||
|
}
|
||
|
|
||
|
template <class _CharT, class _Alloc>
|
||
|
_Rope_char_ptr_proxy<_CharT, _Alloc>
|
||
|
_Rope_char_ref_proxy<_CharT, _Alloc>::operator& () const {
|
||
|
return _Rope_char_ptr_proxy<_CharT, _Alloc>(*this);
|
||
|
}
|
||
|
|
||
|
template<class _CharT, class _Alloc>
|
||
|
_CharT rope<_CharT,_Alloc>::_S_empty_c_str[1] = { _CharT() };
|
||
|
// # endif
|
||
|
|
||
|
#if !defined (_STLP_STATIC_CONST_INIT_BUG) && !defined (_STLP_NO_STATIC_CONST_DEFINITION)
|
||
|
template <class _CharT, class _Alloc>
|
||
|
const size_t rope<_CharT, _Alloc>::npos;
|
||
|
#endif
|
||
|
|
||
|
template<class _CharT, class _Alloc>
|
||
|
const _CharT* rope<_CharT,_Alloc>::c_str() const {
|
||
|
if (0 == _M_tree_ptr._M_data) {
|
||
|
// Possibly redundant, but probably fast.
|
||
|
_S_empty_c_str[0] = _STLP_DEFAULT_CONSTRUCTED(_CharT);
|
||
|
return _S_empty_c_str;
|
||
|
}
|
||
|
_CharT* __old_c_string = _M_tree_ptr._M_data->_M_c_string;
|
||
|
if (0 != __old_c_string) return __old_c_string;
|
||
|
size_t __s = size();
|
||
|
_CharT* __result = _STLP_CREATE_ALLOCATOR(allocator_type,(const allocator_type&)_M_tree_ptr, _CharT).allocate(__s + 1);
|
||
|
_S_flatten(_M_tree_ptr._M_data, __result);
|
||
|
_S_construct_null(__result + __s);
|
||
|
__old_c_string = __STATIC_CAST(_CharT*, _Atomic_swap_ptr(__REINTERPRET_CAST(void* _STLP_VOLATILE*, &(_M_tree_ptr._M_data->_M_c_string)),
|
||
|
__result));
|
||
|
if (0 != __old_c_string) {
|
||
|
// It must have been added in the interim. Hence it had to have been
|
||
|
// separately allocated. Deallocate the old copy, since we just
|
||
|
// replaced it.
|
||
|
_STLP_STD::_Destroy_Range(__old_c_string, __old_c_string + __s + 1);
|
||
|
_STLP_CREATE_ALLOCATOR(allocator_type,(const allocator_type&)_M_tree_ptr, _CharT).deallocate(__old_c_string, __s + 1);
|
||
|
}
|
||
|
return __result;
|
||
|
}
|
||
|
|
||
|
template<class _CharT, class _Alloc>
|
||
|
const _CharT* rope<_CharT,_Alloc>::replace_with_c_str() {
|
||
|
if (0 == _M_tree_ptr._M_data) {
|
||
|
_S_empty_c_str[0] = _STLP_DEFAULT_CONSTRUCTED(_CharT);
|
||
|
return _S_empty_c_str;
|
||
|
}
|
||
|
_CharT* __old_c_string = _M_tree_ptr._M_data->_M_c_string;
|
||
|
if (_RopeRep::_S_leaf == _M_tree_ptr._M_data->_M_tag && 0 != __old_c_string) {
|
||
|
return __old_c_string;
|
||
|
}
|
||
|
size_t __s = size();
|
||
|
_CharT* __result = _M_tree_ptr.allocate(_S_rounded_up_size(__s));
|
||
|
_S_flatten(_M_tree_ptr._M_data, __result);
|
||
|
_S_construct_null(__result + __s);
|
||
|
_M_tree_ptr._M_data->_M_unref_nonnil();
|
||
|
_M_tree_ptr._M_data = _S_new_RopeLeaf(__result, __s, _M_tree_ptr);
|
||
|
return __result;
|
||
|
}
|
||
|
|
||
|
// Algorithm specializations. More should be added.
|
||
|
|
||
|
#if (!defined (_STLP_MSVC) || (_STLP_MSVC >= 1310)) && !defined (__DMC__)
|
||
|
// I couldn't get this to work with VC++
|
||
|
template<class _CharT,class _Alloc>
|
||
|
void _Rope_rotate(_Rope_iterator<_CharT,_Alloc> __first,
|
||
|
_Rope_iterator<_CharT,_Alloc> __middle,
|
||
|
_Rope_iterator<_CharT,_Alloc> __last) {
|
||
|
_STLP_ASSERT(__first.container() == __middle.container() &&
|
||
|
__middle.container() == __last.container())
|
||
|
rope<_CharT,_Alloc>& __r(__first.container());
|
||
|
rope<_CharT,_Alloc> __prefix = __r.substr(0, __first.index());
|
||
|
rope<_CharT,_Alloc> __suffix =
|
||
|
__r.substr(__last.index(), __r.size() - __last.index());
|
||
|
rope<_CharT,_Alloc> __part1 =
|
||
|
__r.substr(__middle.index(), __last.index() - __middle.index());
|
||
|
rope<_CharT,_Alloc> __part2 =
|
||
|
__r.substr(__first.index(), __middle.index() - __first.index());
|
||
|
__r = __prefix;
|
||
|
__r += __part1;
|
||
|
__r += __part2;
|
||
|
__r += __suffix;
|
||
|
}
|
||
|
|
||
|
|
||
|
# if 0
|
||
|
// Probably not useful for several reasons:
|
||
|
// - for SGIs 7.1 compiler and probably some others,
|
||
|
// this forces lots of rope<wchar_t, ...> instantiations, creating a
|
||
|
// code bloat and compile time problem. (Fixed in 7.2.)
|
||
|
// - wchar_t is 4 bytes wide on most UNIX platforms, making it unattractive
|
||
|
// for unicode strings. Unsigned short may be a better character
|
||
|
// type.
|
||
|
inline void rotate(
|
||
|
_Rope_iterator<wchar_t, allocator<char> > __first,
|
||
|
_Rope_iterator<wchar_t, allocator<char> > __middle,
|
||
|
_Rope_iterator<wchar_t, allocator<char> > __last) {
|
||
|
_Rope_rotate(__first, __middle, __last);
|
||
|
}
|
||
|
# endif
|
||
|
#endif /* _STLP_MSVC */
|
||
|
|
||
|
# undef __RopeLeaf__
|
||
|
# undef __RopeRep__
|
||
|
# undef __RopeLeaf
|
||
|
# undef __RopeRep
|
||
|
# undef size_type
|
||
|
|
||
|
_STLP_END_NAMESPACE
|
||
|
|
||
|
# endif /* ROPEIMPL_H */
|
||
|
|
||
|
// Local Variables:
|
||
|
// mode:C++
|
||
|
// End:
|