TinyString moved to TinyConsole

This commit is contained in:
hsaturn
2023-02-19 08:38:11 +01:00
parent 4fb632ce3d
commit 7dc23d322c
2 changed files with 0 additions and 264 deletions

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@@ -1,171 +0,0 @@
#include "TinyString.h"
#include <cstdlib>
const char* TinyString::emptyString = "";
TinyString::TinyString(const char* buffer, size_t s)
{
dup(buffer, s);
}
TinyString::TinyString(int i, int base)
{
reserve(sizeof(int)*8+1);
itoa(i, str, base);
size_ = strlen(str);
free_ -= size_;
}
TinyString::TinyString(const TinyString& m)
{
copy(m);
}
TinyString& TinyString::operator=(const TinyString& m)
{
copy(m);
return *this;
}
TinyString& TinyString::operator+=(const char c)
{
push_back(c);
return *this;
}
TinyString& TinyString::operator +=(int i)
{
reserve(size_ + sizeof(int)*3+1);
itoa(i, str + size_, 10);
int8_t sz = strlen(str+size_);
size_ += sz;
free_ -= sz;
return *this;
}
void TinyString::concat(const char* buf, size_t len)
{
reserve(size_ + len + 1);
strcpy(str + size_, buf);
size_ += len;
free_ -= len;
}
void TinyString::push_back(const char c)
{
reserve(size_+1, extent);
str[size_++] = c;
str[size_] = 0;
free_--;
}
void TinyString::erase(size_t pos, size_t size)
{
if (size == npos) size = size_;
if (pos > size_) return;
if (pos + size > size_) size = size_ - pos;
memmove(str+pos, str+pos+size, size_ - pos + 1);
if (size_ == size)
{
clear();
}
else
{
size_ -= size;
free_ += size;
}
}
void TinyString::clear()
{
if (size_)
free(str);
str = const_cast<char*>(emptyString); // Dangerous str must be left untouched when size_ == 0
size_ = 0;
}
TinyString& TinyString::operator = (const char c)
{
dup(&c, 1);
return *this;
}
TinyString TinyString::substr(size_t pos, size_t size)
{
if (size == npos) size = size_;
if (pos > size_) return TinyString();
if (pos + size > size_) size = size_ - pos;
return TinyString(str+pos, size);
}
bool TinyString::starts_with(const char* buf, size_t size) const
{
const_iterator it(str);
while(size and it != end() and (*it == *buf))
{
it++;
buf++;
size--;
}
return size == 0;
}
int TinyString::compare(const char* s, size_t len) const
{
if (len > size_)
return memcmp(str, s, size_ + 1);
else
return memcmp(str, s, len + 1);
}
void TinyString::reserve(size_t sz, uint8_t extent)
{
if (sz == 0)
{
clear();
return;
}
if (size_ == 0)
{
free_ = sz + extent;
str = static_cast<char*>(malloc(sz + extent));
return;
}
if ((sz > size_ + free_) or (extent > size_ + free_ - sz))
{
free_ = sz + extent - size_;
str = static_cast<char*>(realloc(str, sz + extent));
}
}
void TinyString::collect()
{
if (size_ > 0 and free_ > 1)
{
str = static_cast<char*>(realloc(str, size_ + 1));
free_ = 1;
}
}
TinyString::size_t TinyString::find(const char c, size_t from) const
{
if (size_ == 0 or from > size_) return npos;
const char* f = str + from;
const char* end = str + size_;
while(f != end) if (*f++ == c) return f-str-1;
return npos;
}
void TinyString::dup(const char* buffer, size_t sz, uint8_t extent)
{
reserve(sz + 1, extent);
memcpy(str, buffer, sz);
str[sz] = 0;
if (size_ > sz)
free_ += size_ - sz;
else
free_ -= sz - size_;
size_ = sz;
}

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@@ -1,93 +0,0 @@
#pragma once
#include <Arduino.h>
#include <assert.h>
#include <cstdint>
#pragma pack(push, 1)
class TinyString
{
public:
class size_t
{
public:
using type = uint16_t;
size_t (const size_t& s) : s_(s) {}
size_t (int i) : s_(static_cast<type>) {}
type operator() const { return s_; }
private:
type s_;
};
using value_type = char;
constexpr size_t::type npos = std::numeric_limits<size_t::type>::max();
TinyString() = default;
TinyString(int, int base=10);
TinyString(const TinyString&);
TinyString(const char*, size_t size);
TinyString(const char* s) : TinyString(s, strlen(s)){};
TinyString& operator= (const TinyString&);
~TinyString() { clear(); }
int compare(const char* buf, size_t len) const;
int compare(const char* buf) const { return compare(buf, strlen(buf)); }
friend bool operator == (const TinyString& l, const TinyString& r) { return l.compare(r) == 0; }
friend bool operator < (const TinyString& l, const TinyString& r) { return l.compare(r) <0; }
const char* c_str() const { return str; }
size_t length() const { return size_; }
size_t size() const { return length(); }
void concat(const char* buf, size_t len);
bool starts_with(const char* buf, size_t len) const;
bool starts_with(const char* buf) const { return starts_with(buf, strlen(buf)); }
size_t find(const char c, const size_t from=0) const;
TinyString substr(size_t pos, size_t len = npos);
char& operator[](size_t index) const { assert(index < size_); return str[index]; }
TinyString& operator = (const char c);
TinyString& operator +=(const char c);
TinyString& operator +=(const char* buf) { concat(buf, strlen(buf)); return *this; }
TinyString& operator +=(const TinyString& s) { concat(s.str, s.size_); return *this; }
TinyString& operator +=(int32_t);
operator const char*() const { return str; }
void reserve(size_t size) { reserve(size, 0); }
void erase(size_t pos, size_t size = npos);
void dup(const char* buffer, size_t size, uint8_t extent = 4);
void push_back(const char c);
void clear();
using const_iterator = const char*;
using iterator = char*;
const_iterator cbegin() const { return begin(); }
const_iterator cend() const { return end(); }
iterator begin() const { return str; }
iterator end() const { return str + size_; }
size_t capacity() const { return size_ + free_; }
void collect(); // Save memory
private:
void reserve(size_t new_size, uint8_t extent);
void copy(const TinyString& t) { dup(t.str, t.size_); };
char* str = const_cast<char *>(emptyString);
size_t size_ = 0; // if size_ == 0 no allocation, but str = emptyString
uint8_t free_ = 0; // malloc(str) = size_ + free_
static const char* emptyString;
const uint8_t extent = 8;
};
#pragma pack(pop)