thalassa/lib/stfilter/stfilter.cpp

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2026-03-19 01:23:52 +00:00
// +-------------------------------------------------------------------------+
// | StreamFilters library vers. 0.2.03 |
// | Copyright (c) Andrey V. Stolyarov <croco at croco dot net> 2022-2025 |
// | ----------------------------------------------------------------------- |
// | This is free software. Permission is granted to everyone to use, copy |
// | or modify this software under the terms and conditions of |
// | GNU LESSER GENERAL PUBLIC LICENSE, v. 2.1 |
// | as published by Free Software Foundation (see the file LGPL.txt) |
// | |
// | Please visit http://www.croco.net/software/stfilter to get a fresh copy |
// | ----------------------------------------------------------------------- |
// | This code is provided strictly and exclusively on the "AS IS" basis. |
// | !!! THERE IS NO WARRANTY OF ANY KIND, NEITHER EXPRESSED NOR IMPLIED !!! |
// +-------------------------------------------------------------------------+
#include "stfilter.hpp"
void StreamFilter::AddToEnd(StreamFilter *p)
{
if(dest)
dest->AddToEnd(p);
else
dest = p;
}
void StreamFilter::InsertAfter(StreamFilter *p)
{
p->dest = dest;
dest = p;
}
void StreamFilter::DeleteChain()
{
if(dest)
dest->DeleteChain();
delete this;
}
void StreamFilter::ChainReset()
{
Reset();
if(dest)
dest->ChainReset();
}
void StreamFilter::PutStr(const char *s)
{
const char *p = s;
while(*p) {
PutChar(*p);
p++;
}
}
void StreamFilter::PutHex(unsigned long long n, int minsigns, bool uppercase)
{
unsigned long long k = n;
int signs = 0;
while(k) {
signs++;
k >>= 4;
}
if(minsigns > 0 && signs < minsigns)
signs = minsigns;
int i;
for(i = signs-1; i >= 0; i--) {
int dig = (n >> (4*i)) & 0x0f;
PutChar(dig + (dig < 10 ? '0' : (uppercase ? 'A' : 'a') - 10));
}
}
StreamFilterDestination::StreamFilterDestination()
: StreamFilter(0)
{
}
StreamFilterDestination::~StreamFilterDestination()
{
}
char *StreamFilterDestination::ReleaseBuffer()
{
return buf.ReleaseBuffer();
}
void StreamFilterDestination::FeedChar(int c)
{
buf.AddChar(c);
}
void StreamFilterDestination::Reset()
{
buf.Reset();
}