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#include "rc.h"
#include <stdio.h>
#include <histedit.h>
#include "edit.h"
bool editing = 1;
struct cookie {
EditLine *el;
History *hist;
};
static char *prompt;
void *edit_begin(int fd) {
FILE *f;
HistEvent he;
struct cookie *c;
c = ealloc(sizeof *c);
if (fd == 0)
f = stdin;
else
f = fdopen(fd, "r");
c->el = el_init("rc", f, stdout, stderr);
el_set(c->el, EL_SIGNAL, 0);
el_source(c->el, NULL);
c->hist = history_init();
history(c->hist, &he, H_SETSIZE, 20);
el_set(c->el, EL_HIST, history, c->hist);
return c;
}
static void edit_catcher(int sig) {
write(2, "\n", 1);
rc_raise(eError);
}
char *edit_alloc(void *cookie, size_t *count) {
const char *r;
HistEvent he;
struct cookie *c = cookie;
void (*oldint)(int), (*oldquit)(int);
oldint = sys_signal(SIGINT, edit_catcher);
oldquit = sys_signal(SIGQUIT, edit_catcher);
r = el_gets(c->el, count);
sys_signal(SIGINT, oldint);
sys_signal(SIGQUIT, oldquit);
if (r)
history(c->hist, &he, H_ENTER, r);
return (char *)r; /* cast to avoid gcc warning */
}
static char *edit_prompter(EditLine *e) {
return prompt;
}
void edit_prompt(void *cookie, char *pr) {
struct cookie *c = cookie;
prompt = pr;
el_set(c->el, EL_PROMPT, edit_prompter);
}
void edit_free(void *cookie) {
/* this function deliberately left blank */
}
void edit_end(void *cookie) {
struct cookie *c = cookie;
el_end(c->el);
history_end(c->hist);
efree(c);
}
void edit_reset(void *cookie) {
struct cookie *c = cookie;
el_set(c->el, EL_TERMINAL, NULL);
}
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