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adding char decl plugin for separate theory treatment

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2021-01-26 16:28:44 -08:00
parent 33714ceb40
commit 20332c6d3e
7 changed files with 452 additions and 420 deletions
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57
src/util/zstring.h Normal file
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/*++
Copyright (c) 2011 Microsoft Corporation
Module Name:
zstring.h
Abstract:
String wrapper for unicode/ascii internal strings as vectors
Author:
Nikolaj Bjorner (nbjorner) 2021-01-26
--*/
#pragma once
#include <string>
#include "util/vector.h"
#include "util/buffer.h"
class zstring {
private:
buffer<unsigned> m_buffer;
bool well_formed() const;
bool uses_unicode() const;
bool is_escape_char(char const *& s, unsigned& result);
public:
static unsigned unicode_max_char() { return 196607; }
static unsigned unicode_num_bits() { return 18; }
static unsigned ascii_max_char() { return 255; }
static unsigned ascii_num_bits() { return 8; }
zstring() {}
zstring(char const* s);
zstring(const std::string &str) : zstring(str.c_str()) {}
zstring(unsigned sz, unsigned const* s) { m_buffer.append(sz, s); SASSERT(well_formed()); }
zstring(unsigned ch);
zstring replace(zstring const& src, zstring const& dst) const;
zstring reverse() const;
std::string encode() const;
unsigned length() const { return m_buffer.size(); }
unsigned operator[](unsigned i) const { return m_buffer[i]; }
bool empty() const { return m_buffer.empty(); }
bool suffixof(zstring const& other) const;
bool prefixof(zstring const& other) const;
bool contains(zstring const& other) const;
int indexofu(zstring const& other, unsigned offset) const;
int last_indexof(zstring const& other) const;
zstring extract(unsigned lo, unsigned hi) const;
zstring operator+(zstring const& other) const;
bool operator==(const zstring& other) const;
bool operator!=(const zstring& other) const;
friend std::ostream& operator<<(std::ostream &os, const zstring &str);
friend bool operator<(const zstring& lhs, const zstring& rhs);
};