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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#ifndef CEPH_RBD_INDENT_STREAM_H
#define CEPH_RBD_INDENT_STREAM_H
#include "include/int_types.h"
#include <iostream>
#include <streambuf>
#include <iomanip>
namespace rbd {
class IndentBuffer : public std::streambuf {
public:
IndentBuffer(size_t indent, size_t initial_offset, size_t line_length,
std::streambuf *streambuf)
: m_indent(indent), m_initial_offset(initial_offset),
m_line_length(line_length), m_streambuf(streambuf),
m_delim(" "), m_indent_prefix(m_indent, ' ') {
}
void set_delimiter(const std::string &delim) {
m_delim = delim;
}
protected:
int overflow (int c) override;
private:
size_t m_indent;
size_t m_initial_offset;
size_t m_line_length;
std::streambuf *m_streambuf;
std::string m_delim;
std::string m_indent_prefix;
std::string m_buffer;
void flush_line();
};
class IndentStream : public std::ostream {
public:
IndentStream(size_t indent, size_t initial_offset, size_t line_length,
std::ostream &os)
: std::ostream(&m_indent_buffer),
m_indent_buffer(indent, initial_offset, line_length, os.rdbuf()) {
}
void set_delimiter(const std::string &delim) {
m_indent_buffer.set_delimiter(delim);
}
private:
IndentBuffer m_indent_buffer;
};
} // namespace rbd
#endif // CEPH_RBD_INDENT_STREAM_ITERATOR_H
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