#include "config.h"
#if !defined(lint) && !defined(SCCSID)
#if 0
static char sccsid[] = "@(#)vi.c 8.1 (Berkeley) 6/4/93";
#else
__RCSID("$NetBSD: vi.c,v 1.9 2002/03/18 16:01:01 christos Exp $");
#endif
#endif
#include "el.h"
private el_action_t cv_action(EditLine *, int);
private el_action_t cv_paste(EditLine *, int);
private el_action_t
cv_action(EditLine *el, int c)
{
char *cp, *kp;
if (el->el_chared.c_vcmd.action & DELETE) {
el->el_chared.c_vcmd.action = NOP;
el->el_chared.c_vcmd.pos = 0;
el->el_chared.c_undo.isize = 0;
el->el_chared.c_undo.dsize = 0;
kp = el->el_chared.c_undo.buf;
for (cp = el->el_line.buffer; cp < el->el_line.lastchar; cp++) {
*kp++ = *cp;
el->el_chared.c_undo.dsize++;
}
el->el_chared.c_undo.action = INSERT;
el->el_chared.c_undo.ptr = el->el_line.buffer;
el->el_line.lastchar = el->el_line.buffer;
el->el_line.cursor = el->el_line.buffer;
if (c & INSERT)
el->el_map.current = el->el_map.key;
return (CC_REFRESH);
}
el->el_chared.c_vcmd.pos = el->el_line.cursor;
el->el_chared.c_vcmd.action = c;
return (CC_ARGHACK);
#ifdef notdef
else
if (el_chared.c_vcmd.action == NOP) {
el->el_chared.c_vcmd.pos = el->el_line.cursor;
el->el_chared.c_vcmd.action = c;
return (CC_ARGHACK);
} else {
el->el_chared.c_vcmd.action = 0;
el->el_chared.c_vcmd.pos = 0;
return (CC_ERROR);
}
#endif
}
private el_action_t
cv_paste(EditLine *el, int c)
{
char *ptr;
c_undo_t *un = &el->el_chared.c_undo;
#ifdef DEBUG_PASTE
(void) fprintf(el->el_errfile, "Paste: %x \"%s\" +%d -%d\n",
un->action, un->buf, un->isize, un->dsize);
#endif
if (un->isize == 0)
return (CC_ERROR);
if (!c && el->el_line.cursor < el->el_line.lastchar)
el->el_line.cursor++;
ptr = el->el_line.cursor;
c_insert(el, (int) un->isize);
if (el->el_line.cursor + un->isize > el->el_line.lastchar)
return (CC_ERROR);
(void) memcpy(ptr, un->buf, un->isize);
return (CC_REFRESH);
}
protected el_action_t
vi_paste_next(EditLine *el, int c)
{
return (cv_paste(el, 0));
}
protected el_action_t
vi_paste_prev(EditLine *el, int c)
{
return (cv_paste(el, 1));
}
protected el_action_t
vi_prev_space_word(EditLine *el, int c)
{
if (el->el_line.cursor == el->el_line.buffer)
return (CC_ERROR);
el->el_line.cursor = cv_prev_word(el, el->el_line.cursor,
el->el_line.buffer,
el->el_state.argument,
cv__isword);
if (el->el_chared.c_vcmd.action & DELETE) {
cv_delfini(el);
return (CC_REFRESH);
}
return (CC_CURSOR);
}
protected el_action_t
vi_prev_word(EditLine *el, int c)
{
if (el->el_line.cursor == el->el_line.buffer)
return (CC_ERROR);
el->el_line.cursor = cv_prev_word(el, el->el_line.cursor,
el->el_line.buffer,
el->el_state.argument,
ce__isword);
if (el->el_chared.c_vcmd.action & DELETE) {
cv_delfini(el);
return (CC_REFRESH);
}
return (CC_CURSOR);
}
protected el_action_t
vi_next_space_word(EditLine *el, int c)
{
if (el->el_line.cursor == el->el_line.lastchar)
return (CC_ERROR);
el->el_line.cursor = cv_next_word(el, el->el_line.cursor,
el->el_line.lastchar,
el->el_state.argument,
cv__isword);
if (el->el_map.type == MAP_VI)
if (el->el_chared.c_vcmd.action & DELETE) {
cv_delfini(el);
return (CC_REFRESH);
}
return (CC_CURSOR);
}
protected el_action_t
vi_next_word(EditLine *el, int c)
{
if (el->el_line.cursor == el->el_line.lastchar)
return (CC_ERROR);
el->el_line.cursor = cv_next_word(el, el->el_line.cursor,
el->el_line.lastchar,
el->el_state.argument,
ce__isword);
if (el->el_map.type == MAP_VI)
if (el->el_chared.c_vcmd.action & DELETE) {
cv_delfini(el);
return (CC_REFRESH);
}
return (CC_CURSOR);
}
protected el_action_t
vi_change_case(EditLine *el, int c)
{
if (el->el_line.cursor < el->el_line.lastchar) {
c = *el->el_line.cursor;
if (isupper(c))
*el->el_line.cursor++ = tolower(c);
else if (islower(c))
*el->el_line.cursor++ = toupper(c);
else
el->el_line.cursor++;
re_fastaddc(el);
return (CC_NORM);
}
return (CC_ERROR);
}
protected el_action_t
vi_change_meta(EditLine *el, int c)
{
return (cv_action(el, DELETE | INSERT));
}
protected el_action_t
vi_insert_at_bol(EditLine *el, int c)
{
el->el_line.cursor = el->el_line.buffer;
el->el_chared.c_vcmd.ins = el->el_line.cursor;
el->el_chared.c_undo.ptr = el->el_line.cursor;
el->el_chared.c_undo.action = DELETE;
el->el_map.current = el->el_map.key;
return (CC_CURSOR);
}
protected el_action_t
vi_replace_char(EditLine *el, int c)
{
el->el_map.current = el->el_map.key;
el->el_state.inputmode = MODE_REPLACE_1;
el->el_chared.c_undo.action = CHANGE;
el->el_chared.c_undo.ptr = el->el_line.cursor;
el->el_chared.c_undo.isize = 0;
el->el_chared.c_undo.dsize = 0;
return (CC_NORM);
}
protected el_action_t
vi_replace_mode(EditLine *el, int c)
{
el->el_map.current = el->el_map.key;
el->el_state.inputmode = MODE_REPLACE;
el->el_chared.c_undo.action = CHANGE;
el->el_chared.c_undo.ptr = el->el_line.cursor;
el->el_chared.c_undo.isize = 0;
el->el_chared.c_undo.dsize = 0;
return (CC_NORM);
}
protected el_action_t
vi_substitute_char(EditLine *el, int c)
{
c_delafter(el, el->el_state.argument);
el->el_map.current = el->el_map.key;
return (CC_REFRESH);
}
protected el_action_t
vi_substitute_line(EditLine *el, int c)
{
(void) em_kill_line(el, 0);
el->el_map.current = el->el_map.key;
return (CC_REFRESH);
}
protected el_action_t
vi_change_to_eol(EditLine *el, int c)
{
(void) ed_kill_line(el, 0);
el->el_map.current = el->el_map.key;
return (CC_REFRESH);
}
protected el_action_t
vi_insert(EditLine *el, int c)
{
el->el_map.current = el->el_map.key;
el->el_chared.c_vcmd.ins = el->el_line.cursor;
el->el_chared.c_undo.ptr = el->el_line.cursor;
el->el_chared.c_undo.action = DELETE;
return (CC_NORM);
}
protected el_action_t
vi_add(EditLine *el, int c)
{
int ret;
el->el_map.current = el->el_map.key;
if (el->el_line.cursor < el->el_line.lastchar) {
el->el_line.cursor++;
if (el->el_line.cursor > el->el_line.lastchar)
el->el_line.cursor = el->el_line.lastchar;
ret = CC_CURSOR;
} else
ret = CC_NORM;
el->el_chared.c_vcmd.ins = el->el_line.cursor;
el->el_chared.c_undo.ptr = el->el_line.cursor;
el->el_chared.c_undo.action = DELETE;
return (ret);
}
protected el_action_t
vi_add_at_eol(EditLine *el, int c)
{
el->el_map.current = el->el_map.key;
el->el_line.cursor = el->el_line.lastchar;
el->el_chared.c_vcmd.ins = el->el_line.lastchar;
el->el_chared.c_undo.ptr = el->el_line.lastchar;
el->el_chared.c_undo.action = DELETE;
return (CC_CURSOR);
}
protected el_action_t
vi_delete_meta(EditLine *el, int c)
{
return (cv_action(el, DELETE));
}
protected el_action_t
vi_end_word(EditLine *el, int c)
{
if (el->el_line.cursor == el->el_line.lastchar)
return (CC_ERROR);
el->el_line.cursor = cv__endword(el->el_line.cursor,
el->el_line.lastchar, el->el_state.argument);
if (el->el_chared.c_vcmd.action & DELETE) {
el->el_line.cursor++;
cv_delfini(el);
return (CC_REFRESH);
}
return (CC_CURSOR);
}
protected el_action_t
vi_to_end_word(EditLine *el, int c)
{
if (el->el_line.cursor == el->el_line.lastchar)
return (CC_ERROR);
el->el_line.cursor = cv__endword(el->el_line.cursor,
el->el_line.lastchar, el->el_state.argument);
if (el->el_chared.c_vcmd.action & DELETE) {
el->el_line.cursor++;
cv_delfini(el);
return (CC_REFRESH);
}
return (CC_CURSOR);
}
protected el_action_t
vi_undo(EditLine *el, int c)
{
char *cp, *kp;
char temp;
int i, size;
c_undo_t *un = &el->el_chared.c_undo;
#ifdef DEBUG_UNDO
(void) fprintf(el->el_errfile, "Undo: %x \"%s\" +%d -%d\n",
un->action, un->buf, un->isize, un->dsize);
#endif
switch (un->action) {
case DELETE:
if (un->dsize == 0)
return (CC_NORM);
(void) memcpy(un->buf, un->ptr, un->dsize);
for (cp = un->ptr; cp <= el->el_line.lastchar; cp++)
*cp = cp[un->dsize];
el->el_line.lastchar -= un->dsize;
el->el_line.cursor = un->ptr;
un->action = INSERT;
un->isize = un->dsize;
un->dsize = 0;
break;
case DELETE | INSERT:
size = un->isize - un->dsize;
if (size > 0)
i = un->dsize;
else
i = un->isize;
cp = un->ptr;
kp = un->buf;
while (i-- > 0) {
temp = *kp;
*kp++ = *cp;
*cp++ = temp;
}
if (size > 0) {
el->el_line.cursor = cp;
c_insert(el, size);
while (size-- > 0 && cp < el->el_line.lastchar) {
temp = *kp;
*kp++ = *cp;
*cp++ = temp;
}
} else if (size < 0) {
size = -size;
for (; cp <= el->el_line.lastchar; cp++) {
*kp++ = *cp;
*cp = cp[size];
}
el->el_line.lastchar -= size;
}
el->el_line.cursor = un->ptr;
i = un->dsize;
un->dsize = un->isize;
un->isize = i;
break;
case INSERT:
if (un->isize == 0)
return (CC_NORM);
el->el_line.cursor = un->ptr;
c_insert(el, (int) un->isize);
(void) memcpy(un->ptr, un->buf, un->isize);
un->action = DELETE;
un->dsize = un->isize;
un->isize = 0;
break;
case CHANGE:
if (un->isize == 0)
return (CC_NORM);
el->el_line.cursor = un->ptr;
size = (int) (el->el_line.cursor - el->el_line.lastchar);
if (size < un->isize)
size = un->isize;
cp = un->ptr;
kp = un->buf;
for (i = 0; i < size; i++) {
temp = *kp;
*kp++ = *cp;
*cp++ = temp;
}
un->dsize = 0;
break;
default:
return (CC_ERROR);
}
return (CC_REFRESH);
}
protected el_action_t
vi_command_mode(EditLine *el, int c)
{
int size;
el->el_chared.c_vcmd.ins = 0;
el->el_chared.c_vcmd.action = NOP;
el->el_chared.c_vcmd.pos = 0;
el->el_state.doingarg = 0;
size = el->el_chared.c_undo.ptr - el->el_line.cursor;
if (size < 0)
size = -size;
if (el->el_chared.c_undo.action == (INSERT | DELETE) ||
el->el_chared.c_undo.action == DELETE)
el->el_chared.c_undo.dsize = size;
else
el->el_chared.c_undo.isize = size;
el->el_state.inputmode = MODE_INSERT;
el->el_map.current = el->el_map.alt;
#ifdef VI_MOVE
if (el->el_line.cursor > el->el_line.buffer)
el->el_line.cursor--;
#endif
return (CC_CURSOR);
}
protected el_action_t
vi_zero(EditLine *el, int c)
{
if (el->el_state.doingarg) {
if (el->el_state.argument > 1000000)
return (CC_ERROR);
el->el_state.argument =
(el->el_state.argument * 10) + (c - '0');
return (CC_ARGHACK);
} else {
el->el_line.cursor = el->el_line.buffer;
if (el->el_chared.c_vcmd.action & DELETE) {
cv_delfini(el);
return (CC_REFRESH);
}
return (CC_CURSOR);
}
}
protected el_action_t
vi_delete_prev_char(EditLine *el, int c)
{
if (el->el_chared.c_vcmd.ins == 0)
return (CC_ERROR);
if (el->el_chared.c_vcmd.ins >
el->el_line.cursor - el->el_state.argument)
return (CC_ERROR);
c_delbefore(el, el->el_state.argument);
el->el_line.cursor -= el->el_state.argument;
return (CC_REFRESH);
}
protected el_action_t
vi_list_or_eof(EditLine *el, int c)
{
#ifdef notyet
if (el->el_line.cursor == el->el_line.lastchar &&
el->el_line.cursor == el->el_line.buffer) {
#endif
term_overwrite(el, STReof, 4);
term__flush();
return (CC_EOF);
#ifdef notyet
} else {
re_goto_bottom(el);
*el->el_line.lastchar = '\0';
return (CC_LIST_CHOICES);
}
#endif
}
protected el_action_t
vi_kill_line_prev(EditLine *el, int c)
{
char *kp, *cp;
cp = el->el_line.buffer;
kp = el->el_chared.c_kill.buf;
while (cp < el->el_line.cursor)
*kp++ = *cp++;
el->el_chared.c_kill.last = kp;
c_delbefore(el, el->el_line.cursor - el->el_line.buffer);
el->el_line.cursor = el->el_line.buffer;
return (CC_REFRESH);
}
protected el_action_t
vi_search_prev(EditLine *el, int c)
{
return (cv_search(el, ED_SEARCH_PREV_HISTORY));
}
protected el_action_t
vi_search_next(EditLine *el, int c)
{
return (cv_search(el, ED_SEARCH_NEXT_HISTORY));
}
protected el_action_t
vi_repeat_search_next(EditLine *el, int c)
{
if (el->el_search.patlen == 0)
return (CC_ERROR);
else
return (cv_repeat_srch(el, el->el_search.patdir));
}
protected el_action_t
vi_repeat_search_prev(EditLine *el, int c)
{
if (el->el_search.patlen == 0)
return (CC_ERROR);
else
return (cv_repeat_srch(el,
el->el_search.patdir == ED_SEARCH_PREV_HISTORY ?
ED_SEARCH_NEXT_HISTORY : ED_SEARCH_PREV_HISTORY));
}
protected el_action_t
vi_next_char(EditLine *el, int c)
{
char ch;
if (el_getc(el, &ch) != 1)
return (ed_end_of_file(el, 0));
el->el_search.chadir = CHAR_FWD;
el->el_search.chacha = ch;
return (cv_csearch_fwd(el, ch, el->el_state.argument, 0));
}
protected el_action_t
vi_prev_char(EditLine *el, int c)
{
char ch;
if (el_getc(el, &ch) != 1)
return (ed_end_of_file(el, 0));
el->el_search.chadir = CHAR_BACK;
el->el_search.chacha = ch;
return (cv_csearch_back(el, ch, el->el_state.argument, 0));
}
protected el_action_t
vi_to_next_char(EditLine *el, int c)
{
char ch;
if (el_getc(el, &ch) != 1)
return (ed_end_of_file(el, 0));
return (cv_csearch_fwd(el, ch, el->el_state.argument, 1));
}
protected el_action_t
vi_to_prev_char(EditLine *el, int c)
{
char ch;
if (el_getc(el, &ch) != 1)
return (ed_end_of_file(el, 0));
return (cv_csearch_back(el, ch, el->el_state.argument, 1));
}
protected el_action_t
vi_repeat_next_char(EditLine *el, int c)
{
if (el->el_search.chacha == 0)
return (CC_ERROR);
return (el->el_search.chadir == CHAR_FWD
? cv_csearch_fwd(el, el->el_search.chacha,
el->el_state.argument, 0)
: cv_csearch_back(el, el->el_search.chacha,
el->el_state.argument, 0));
}
protected el_action_t
vi_repeat_prev_char(EditLine *el, int c)
{
if (el->el_search.chacha == 0)
return (CC_ERROR);
return el->el_search.chadir == CHAR_BACK ?
cv_csearch_fwd(el, el->el_search.chacha, el->el_state.argument, 0) :
cv_csearch_back(el, el->el_search.chacha, el->el_state.argument, 0);
}