Implemented Readline by using libedit.

1 files changed, 50 insertions, 1 deletions

diff --git a/src/Readline.cc b/src/Readline.cc
index 5b47901..a58719d 100644
--- a/src/Readline.cc
+++ b/src/Readline.cc
@@ -1 +1,50 @@
-#include "BReadline.h"
\ No newline at end of file
+#include <stdio.h>
+#include "BReadline.h"
+
+using namespace Balau;
+
+Readline::Readline(const String & program, IO<Handle> in)
+    : m_in(in)
+{
+    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);
+}
+
+Readline::~Readline() {
+    el_end(m_el);
+}
+
+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 "";
+    }
+
+    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);
+}