template <typename R> bool extract_word(R& result,tokenizer& tokenizer)
{
result.clear();
//buffer
array<ascii> buffer;
//word
if(!tokenizer.word(buffer))
return false;
//delimited
if(!tokenizer.is_delimited())
return false;
//commit
result=buffer;
update(symbols()._word,buffer);
return true;
}
template <typename R> bool extract_identifier(R& result,tokenizer& tokenizer)
{
result.clear();
//buffer
array<ascii> buffer;
array<ascii> current;
//identifier
if(!tokenizer.identifier(current))
return false;
buffer.append(current);
//word
if(tokenizer.word(current))
buffer.append(current);
//delimited
if(!tokenizer.is_delimited())
return false;
//commit
result=buffer;
update(symbols()._identifier,buffer);
return true;
}
template <typename R> bool extract_number(R& result,tokenizer& tokenizer)
{
result.clear();
//buffer
array<ascii> buffer;
array<ascii> current;
//sign
if(tokenizer.any(current,pack("+","-")))
buffer.append(current);
//integer part
if(tokenizer.digit(current))
buffer.append(current);
//real part
if(tokenizer.delimit(current,"."))
{
buffer.append(current);
if(tokenizer.digit(current))
buffer.append(current);
}
//parse with c api
if(!buffer.join("").is_real())
return false;
//no dot after
if(tokenizer.starts_with("."))
return false;
//delimited
if(!tokenizer.is_delimited())
return false;
//commit
result=buffer;
update(symbols()._number,buffer);
return true;
}