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Diffstat (limited to 'tier1/kconfig/src/core/bufferfragment_p.h')
| -rw-r--r-- | tier1/kconfig/src/core/bufferfragment_p.h | 181 |
1 files changed, 0 insertions, 181 deletions
diff --git a/tier1/kconfig/src/core/bufferfragment_p.h b/tier1/kconfig/src/core/bufferfragment_p.h deleted file mode 100644 index 5a753ad4..00000000 --- a/tier1/kconfig/src/core/bufferfragment_p.h +++ /dev/null @@ -1,181 +0,0 @@ -/* - This file is part of the KDE libraries - Copyright (c) 2008 Jakub Stachowski <qbast@go2.pl> - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public - License as published by the Free Software Foundation; either - version 2 of the License, or (at your option) any later version. - - This library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public License - along with this library; see the file COPYING.LIB. If not, write to - the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, - Boston, MA 02110-1301, USA. -*/ - -#ifndef BUFFERFRAGMENT_H -#define BUFFERFRAGMENT_H - -#define bf_isspace(str) ((str == ' ') || (str == '\t') || (str == '\r')) - -// This class provides wrapper around fragment of existing buffer (array of bytes). -// If underlying buffer gets deleted, all BufferFragment objects referencing it become invalid. -// Use toByteArray() to make deep copy of the buffer fragment. -// -// API is designed to subset of QByteArray methods with some changes: -// - trim() is like QByteArray.trimmed(), but it modifies current object -// - truncateLeft() provides way to cut off beginning of the buffer -// - split() works more like strtok_r than QByteArray.split() -// - truncateLeft() and mid() require position argument to be valid - -class KConfigIniBackend::BufferFragment -{ - -public: - - BufferFragment() : d(0), len(0) - { - } - - BufferFragment(char* buf, int size) : d(buf), len(size) - { - } - - int length() const - { - return len; - } - - char at(unsigned int i) const - { - Q_ASSERT(i < len); - return d[i]; - } - - void clear() - { - len = 0; - } - - const char* constData() const - { - return d; - } - - char* data() const - { - return d; - } - - void trim() - { - while (bf_isspace(*d) && len > 0) { - d++; - len--; - } - while (len > 0 && bf_isspace(d[len - 1])) - len--; - } - - // similar to strtok_r . On first call variable pointed by start should be set to 0. - // Each call will update *start to new starting position. - BufferFragment split(char c, unsigned int* start) - { - while (*start < len) { - int end = indexOf(c, *start); - if (end == -1) end = len; - BufferFragment line(d + (*start), end - (*start)); - *start = end + 1; - return line; - } - return BufferFragment(); - } - - bool isEmpty() const - { - return (len == 0); - } - - BufferFragment left(unsigned int size) const - { - return BufferFragment(d, qMin(size,len)); - } - - void truncateLeft(unsigned int size) - { - Q_ASSERT(size <= len); - d += size; - len -= size; - } - - void truncate(unsigned int pos) - { - if (pos < len) len = pos; - } - - bool isNull() const - { - return (d == 0); - } - - BufferFragment mid(unsigned int pos, int length=-1) const - { - Q_ASSERT(pos < len); - int size = length; - if (length == -1 || (pos + length) > len) - size = len - pos; - return BufferFragment(d + pos, size); - } - - bool operator==(const QByteArray& other) const - { - return (other.size() == (int)len && memcmp(d,other.constData(),len) == 0); - } - - bool operator!=(const QByteArray& other) const - { - return (other.size() != (int)len || memcmp(d,other.constData(),len) != 0); - } - - int indexOf(char c, unsigned int from = 0) const - { - const char* cursor = d + from - 1; - const char* end = d + len; - while ( ++cursor < end) - if (*cursor ==c ) - return cursor - d; - return -1; - } - - int lastIndexOf(char c) const - { - int from = len - 1; - while (from >= 0) - if (d[from] == c) - return from; - else - from--; - return -1; - } - - QByteArray toByteArray() const { - return QByteArray(d,len); - } - - // this is faster than toByteArray, but returned QByteArray becomes invalid - // when buffer for this BufferFragment disappears - QByteArray toVolatileByteArray() const { - return QByteArray::fromRawData(d, len); - } - -private: - char* d; - unsigned int len; -}; - -#endif |