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#include <stdio.h>
#include "BReadline.h"
using namespace Balau;
Readline::Readline(const String & program, IO<Handle> in)
: m_in(in)
{
HistEvent ev;
m_hist = history_init();
history(m_hist, &ev, H_SETSIZE, 5000);
m_el = el_init(program.to_charp(), stdin, stdout, stderr);
el_set(m_el, EL_CLIENTDATA, this);
el_set(m_el, EL_PROMPT, (const char * (*)(EditLine *)) &Readline::elPrompt);
el_set(m_el, EL_SIGNAL, 1);
el_set(m_el, EL_GETCFN, (int (*)(EditLine *, char *)) &Readline::elGetCFN);
el_set(m_el, EL_HIST, history, m_hist);
}
Readline::~Readline() {
el_end(m_el);
history_end(m_hist);
}
void Readline::setPrompt(const String & prompt) {
m_prompt = prompt;
}
String Readline::gets() {
int count;
const char * line = el_gets(m_el, &count);
if (!line) {
m_eof = true;
return "";
}
if (*line) {
HistEvent ev;
history(m_hist, &ev, H_ENTER, line);
}
return line;
}
const char * Readline::elPrompt(EditLine * el) {
Readline * rl;
el_get(el, EL_CLIENTDATA, &rl);
return rl->elPrompt();
}
int Readline::elGetCFN(EditLine * el, char * c) {
Readline * rl;
el_get(el, EL_CLIENTDATA, &rl);
return rl->elGetCFN(c);
}
int Readline::elGetCFN(char * c) {
return m_in->read(c, 1);
}
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