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#ifndef VHDLSTRING_H
#define VHDLSTRING_H
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "VhdlParser.h"
// super class for VhdlParserTokenManager
// is generated in vhdlparser.jj
// -option TOKEN_MANAGER_SUPER_CLASS = "TokenParser"
// sets the Vhdlparser in vhdljjparser.cpp
// tokenManager->setLexParser(vhdlParser);
namespace vhdl {
namespace parser {
class TokenParser {
public:
VhdlParser* parser = nullptr;
void setLexParser(VhdlParser* p)
{
parser = p;
}
};
}
}
/** @brief Minimal string class with std::string like behaviour that fulfills the JavaCC
* string requirements.
*/
class VhdlString
{
public:
VhdlString()
{
init();
}
VhdlString(const VhdlString &other)
{
m_str = (char*)malloc(other.m_len+1);
memcpy(m_str,other.m_str,other.m_len);
m_len = other.m_len;
m_str[m_len]=0;
}
VhdlString &operator=(const VhdlString &other)
{
if (this!=&other)
{
free(m_str);
m_str = (char*)malloc(other.m_len+1);
memcpy(m_str,other.m_str,other.m_len);
m_len = other.m_len;
m_str[m_len]=0;
}
return *this;
}
VhdlString(const char *s)
{
m_len = strlen(s);
m_str=(char*)malloc(m_len+1);
memcpy(m_str,s,m_len+1);
}
VhdlString(const char *s,int size)
{
m_str = (char*)malloc(size+1);
memcpy(m_str,s,size);
m_str[size]=0;
m_len=size;
}
~VhdlString()
{
free(m_str);
}
VhdlString& append(const char *s,int size)
{
int oldlen = m_len;
m_len+=size+1;
if (m_len)
{
m_str = (char*)realloc(m_str,m_len);
memcpy(m_str+oldlen,s,m_len-oldlen-1);
m_str[m_len-1]=0;
}
return *this;
}
VhdlString& append(const char *s)
{
return append(s,strlen(s));
}
VhdlString& append(const VhdlString &other)
{
return append(other.m_str,other.m_len);
}
VhdlString substr(int pos=0,int len=-1)
{
return VhdlString(m_str?m_str+pos:0,len==-1?m_len-pos:m_len);
}
int copy(char *s,int len,int pos=0) const
{
if (len==0) return 0;
if (pos>=m_len) { s[0]=0; return 0; }
int r=m_len<pos+len ? m_len-pos : len;
memcpy(s,m_str+pos,r);
return r;
}
const char *c_str() const { return m_str; }
const char *data() const { return m_str; }
int size() const { return m_len; }
int length() const { return m_len; }
char & operator[](int i) { return m_str[i]; }
const char &operator[](int i) const { return m_str[i]; }
void clear() { free(m_str); init(); }
VhdlString &operator+=(char c) { char s[2]; s[0]=c; s[1]=0; return append(s); }
VhdlString &operator+=(const char *s) { return append(s); }
VhdlString &operator+=(VhdlString s) { return append(s); }
VhdlString operator+ (const char *s) { return append(s); }
private:
void init() { m_str=(char*)calloc(1,1); m_len=0; }
char *m_str;
int m_len;
};
// declare it static otherwise we will get:
// multiple definition of `operator+(char const*, VhdlString)'
// as we are in an include file
static VhdlString operator+ (const char *s, VhdlString v) { return VhdlString(s).append(v); }
#endif
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