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#include <string.h>
#include <wchar.h>
#include "macros.h"
// current command before tab completion
static wchar_t curcmd [BUFFERSIZE];
void copy_to_curcmd(wchar_t * inputline) {
wcscpy(curcmd, inputline);
}
wchar_t * get_curcmd() {
return curcmd;
}
// this comp mark is used to mark when tab completion is started
static int comp = 0;
int get_comp() {
return comp;
}
void set_comp(int i) {
comp = i;
}
#if defined HISTORY_FILE
#include <ncursesw/curses.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include "history.h"
#include "sc.h"
#include "utils/string.h"
struct history * create_history(char mode) {
struct history * h = (struct history *) malloc (sizeof (struct history));
h->len = 0;
h->pos = 0;
h->mode = mode;
h->list = NULL;
return h;
}
void destroy_history(struct history * h) {
struct hlist * nl;
struct hlist * n_sig;
nl = h->list;
while (nl != NULL) {
n_sig = nl->pnext;
free(nl->line);
free(nl);
nl = n_sig;
}
free(h);
return;
}
void load_history(struct history * h) {
char infofile[PATHLEN];
wchar_t linea[FBUFLEN];
int c;
char * home;
FILE * f;
if ((home = getenv("HOME"))) {
sprintf(infofile, "%s/", home);
strcat(infofile, HISTORY_FILE);
if ((c = open(infofile, O_RDONLY)) > -1) {
close(c);
f = fopen(infofile, "r");
if (f == NULL) return;
while ( feof(f) == 0 ) {
fgetws(linea, sizeof(linea), f);
int s = wcslen(linea)-1;
del_range_wchars(linea, s, s);
if (linea[0] == L':') {
del_range_wchars(linea, 0, 0);
add(h, linea);
}
}
fclose(f);
}
}
return;
}
// Save history to file
// returns 0 on success, -1 otherwise
int save_history(struct history * h) {
if (h->mode != ':' ) return -1;
char infofile [PATHLEN];
char * home;
FILE * f;
int i;
struct hlist * nl = h->list;
if ((home = getenv("HOME"))) {
sprintf(infofile, "%s/", home);
strcat(infofile, HISTORY_FILE);
f = fopen(infofile, "w");
if (f == NULL) return -1;
// Go to the end
for (i=1; i < h->len; i++) {
nl = nl->pnext;
}
// Traverse list back to front, so the history is saved in chronological order
for (i=0; i < h->len; i++) {
fwprintf(f, L":");
fwprintf(f, L"%ls\n", nl->line);
nl = nl->pant;
}
fclose(f);
return 0;
}
return -1;
}
// Remove history element
// 0 first element, -1 second element
void del_item_from_history(struct history * h, int pos) {
if (h->len - 1 < -pos) return;
struct hlist * nl = h->list;
struct hlist * n_ant = NULL;
int i;
if (pos == 0) {
h->list = nl->pnext;
if (nl->pnext != NULL) nl->pnext->pant = NULL;
} else {
for (i=0; i<-pos; i++) {
n_ant = nl;
nl = nl->pnext;
}
n_ant->pnext = nl->pnext;
if (nl->pnext != NULL) nl->pnext->pant = n_ant;
}
free(nl->line);
free(nl);
h->len--;
return;
}
// Find a history element and move it. Starts from POS
// pos=0 first element, pos=-1 second element
// returns 1 if moved, 0 otherwise.
int move_item_from_history_by_str(struct history * h, wchar_t * item, int pos) {
if (h->len - 1 < -pos || ! pos || ! wcslen(item)) return 0; // Move the first element is disallowed
struct hlist * nl = h->list;
struct hlist * n_ant = NULL;
int i;
for (i=0; i<-pos; i++) {
n_ant = nl;
nl = nl->pnext;
}
for (i=-pos; i < h->len ; i++) {
if (wcscmp(item, nl->line) == 0) break;
n_ant = nl;
nl = nl->pnext;
}
if (i >= h->len) return 0;
n_ant->pnext = nl->pnext;
if (nl->pnext != NULL) nl->pnext->pant = n_ant;
nl->pant = NULL;
nl->pnext = h->list;
h->list->pant = nl;
h->list = nl;
return 1;
}
// Add recent entry at the beginning
void add(struct history * h, wchar_t * line) {
struct hlist * nl = (struct hlist *) malloc(sizeof(struct hlist));
// Save the line
int size = wcslen(line)+1;
if (size == 1) size = BUFFERSIZE + 1;
wchar_t * val = (wchar_t *) malloc(sizeof(wchar_t) * size);
val[0]=L'\0';
wcscpy(val, line);
nl->line = val;
// Append at the beginning
nl->pant = NULL;
nl->pnext = h->list;
if (h->list != NULL) h->list->pant = nl;
h->list = nl;
h->len++;
return;
}
// Returns a history line from COMMAND_MODE
// POS 0 is the most recent line
wchar_t * get_line_from_history(struct history * h, int pos) {
return get_hlist_from_history(h, pos)->line;
}
struct hlist * get_hlist_from_history(struct history * h, int pos) {
if (h->len <= - pos) return NULL;
int i;
struct hlist * nl = h->list;
for (i=0; i<-pos; i++) {
nl = nl->pnext;
}
return nl;
}
#endif
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