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#include <stdlib.h>
#include <string.h>
#include "vis-core.h"
#include "text.h"
#include "util.h"
#include "register.h"
#include "buffer.h"
static Buffer *register_buffer(Register *reg, size_t slot) {
Buffer *buf = array_get(®->values, slot);
if (buf)
return buf;
if (array_resize(®->values, slot) && (buf = array_get(®->values, slot)))
return buf;
Buffer new;
buffer_init(&new);
if (!array_add(®->values, &new))
return NULL;
size_t capacity = array_capacity(®->values);
for (size_t i = array_length(®->values); i < capacity; i++) {
if (!array_add(®->values, &new))
return NULL;
}
return array_get(®->values, slot);
}
static ssize_t read_buffer(void *context, char *data, size_t len) {
buffer_append(context, data, len);
return len;
}
bool register_init(Register *reg) {
Buffer buf;
buffer_init(&buf);
array_init_sized(®->values, sizeof(Buffer));
return array_add(®->values, &buf);
}
void register_release(Register *reg) {
if (!reg)
return;
size_t n = array_capacity(®->values);
for (size_t i = 0; i < n; i++)
buffer_release(array_get(®->values, i));
array_release(®->values);
}
const char *register_slot_get(Vis *vis, Register *reg, size_t slot, size_t *len) {
if (len)
*len = 0;
switch (reg->type) {
case REGISTER_NORMAL:
{
Buffer *buf = array_get(®->values, slot);
if (!buf)
return NULL;
buffer_terminate(buf);
if (len)
*len = buffer_length0(buf);
return buffer_content0(buf);
}
case REGISTER_CLIPBOARD:
{
Buffer buferr;
buffer_init(&buferr);
Buffer *buf = array_get(®->values, slot);
if (!buf)
return NULL;
buffer_clear(buf);
int status = vis_pipe(vis, vis->win->file,
&(Filerange){ .start = 0, .end = 0 },
(const char*[]){ VIS_CLIPBOARD, "--paste", NULL },
buf, read_buffer, &buferr, read_buffer);
if (status != 0)
vis_info_show(vis, "Command failed %s", buffer_content0(&buferr));
buffer_release(&buferr);
if (len)
*len = buffer_length0(buf);
return buffer_content0(buf);
}
case REGISTER_BLACKHOLE:
default:
return NULL;
}
}
const char *register_get(Vis *vis, Register *reg, size_t *len) {
return register_slot_get(vis, reg, 0, len);
}
bool register_slot_put(Vis *vis, Register *reg, size_t slot, const char *data, size_t len) {
if (reg->type != REGISTER_NORMAL)
return false;
Buffer *buf = register_buffer(reg, slot);
return buf && buffer_put(buf, data, len);
}
bool register_put(Vis *vis, Register *reg, const char *data, size_t len) {
return register_slot_put(vis, reg, 0, data, len) &&
register_resize(reg, 1);
}
bool register_put0(Vis *vis, Register *reg, const char *data) {
return register_put(vis, reg, data, strlen(data)+1);
}
static bool register_slot_append_range(Register *reg, size_t slot, Text *txt, Filerange *range) {
switch (reg->type) {
case REGISTER_NORMAL:
{
Buffer *buf = register_buffer(reg, slot);
if (!buf)
return false;
size_t len = text_range_size(range);
if (len == SIZE_MAX || !buffer_grow(buf, len+1))
return false;
if (buf->len > 0 && buf->data[buf->len-1] == '\0')
buf->len--;
buf->len += text_bytes_get(txt, range->start, len, buf->data + buf->len);
return buffer_append(buf, "\0", 1);
}
default:
return false;
}
}
bool register_slot_put_range(Vis *vis, Register *reg, size_t slot, Text *txt, Filerange *range) {
if (reg->append)
return register_slot_append_range(reg, slot, txt, range);
switch (reg->type) {
case REGISTER_NORMAL:
{
Buffer *buf = register_buffer(reg, slot);
if (!buf)
return false;
size_t len = text_range_size(range);
if (len == SIZE_MAX || !buffer_reserve(buf, len+1))
return false;
buf->len = text_bytes_get(txt, range->start, len, buf->data);
return buffer_append(buf, "\0", 1);
}
case REGISTER_CLIPBOARD:
{
Buffer buferr;
buffer_init(&buferr);
int status = vis_pipe(vis, vis->win->file, range,
(const char*[]){ VIS_CLIPBOARD, "--copy", NULL },
NULL, NULL, &buferr, read_buffer);
if (status != 0)
vis_info_show(vis, "Command failed %s", buffer_content0(&buferr));
buffer_release(&buferr);
return status == 0;
}
case REGISTER_BLACKHOLE:
return true;
default:
return false;
}
}
bool register_put_range(Vis *vis, Register *reg, Text *txt, Filerange *range) {
return register_slot_put_range(vis, reg, 0, txt, range) &&
register_resize(reg, 1);
}
size_t register_count(Register *reg) {
return array_length(®->values);
}
bool register_resize(Register *reg, size_t count) {
return array_truncate(®->values, count);
}
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