static int ui_input_key(struct input *input)
{
switch (ui.key)
{
case KEY_LEFT:
if (ui.mod == GLFW_MOD_CONTROL + GLFW_MOD_SHIFT)
{
input->q = prev_word(input->q, input->text);
}
else if (ui.mod == GLFW_MOD_CONTROL)
{
if (input->p != input->q)
input->p = input->q = input->p < input->q ? input->p : input->q;
else
input->p = input->q = prev_word(input->q, input->text);
}
else if (ui.mod == GLFW_MOD_SHIFT)
{
if (input->q > input->text)
input->q = prev_char(input->q, input->text);
}
else if (ui.mod == 0)
{
if (input->p != input->q)
input->p = input->q = input->p < input->q ? input->p : input->q;
else if (input->q > input->text)
input->p = input->q = prev_char(input->q, input->text);
}
break;
case KEY_RIGHT:
if (ui.mod == GLFW_MOD_CONTROL + GLFW_MOD_SHIFT)
{
input->q = next_word(input->q, input->end);
}
else if (ui.mod == GLFW_MOD_CONTROL)
{
if (input->p != input->q)
input->p = input->q = input->p > input->q ? input->p : input->q;
else
input->p = input->q = next_word(input->q, input->end);
}
else if (ui.mod == GLFW_MOD_SHIFT)
{
if (input->q < input->end)
input->q = next_char(input->q);
}
else if (ui.mod == 0)
{
if (input->p != input->q)
input->p = input->q = input->p > input->q ? input->p : input->q;
else if (input->q < input->end)
input->p = input->q = next_char(input->q);
}
break;
case KEY_UP:
case KEY_HOME:
if (ui.mod == GLFW_MOD_CONTROL + GLFW_MOD_SHIFT)
{
input->q = input->text;
}
else if (ui.mod == GLFW_MOD_CONTROL)
{
input->p = input->q = input->text;
}
else if (ui.mod == GLFW_MOD_SHIFT)
{
input->q = input->text;
}
else if (ui.mod == 0)
{
input->p = input->q = input->text;
}
break;
case KEY_DOWN:
case KEY_END:
if (ui.mod == GLFW_MOD_CONTROL + GLFW_MOD_SHIFT)
{
input->q = input->end;
}
else if (ui.mod == GLFW_MOD_CONTROL)
{
input->p = input->q = input->end;
}
else if (ui.mod == GLFW_MOD_SHIFT)
{
input->q = input->end;
}
else if (ui.mod == 0)
{
input->p = input->q = input->end;
}
break;
case KEY_DELETE:
if (input->p != input->q)
ui_input_delete_selection(input);
else if (input->p < input->end)
{
char *np = next_char(input->p);
memmove(input->p, np, input->end - np);
input->end -= np - input->p;
*input->end = 0;
input->q = input->p;
}
break;
case KEY_ESCAPE:
return -1;
case KEY_ENTER:
return 1;
case KEY_BACKSPACE:
if (input->p != input->q)
ui_input_delete_selection(input);
else if (input->p > input->text)
{
char *pp = prev_char(input->p, input->text);
memmove(pp, input->p, input->end - input->p);
input->end -= input->p - pp;
*input->end = 0;
input->q = input->p = pp;
}
break;
case KEY_CTL_A:
input->p = input->q = input->text;
break;
case KEY_CTL_E:
input->p = input->q = input->end;
break;
case KEY_CTL_W:
if (input->p != input->q)
ui_input_delete_selection(input);
else
{
input->p = prev_word(input->p, input->text);
ui_input_delete_selection(input);
}
break;
case KEY_CTL_U:
input->p = input->q = input->end = input->text;
break;
case KEY_CTL_C:
case KEY_CTL_X:
if (input->p != input->q)
{
char buf[sizeof input->text];
char *p = input->p < input->q ? input->p : input->q;
char *q = input->p > input->q ? input->p : input->q;
memmove(buf, p, q - p);
buf[q-p] = 0;
glfwSetClipboardString(window, buf);
if (ui.key == KEY_CTL_X)
ui_input_delete_selection(input);
}
break;
case KEY_CTL_V:
{
const char *buf = glfwGetClipboardString(window);
if (buf)
ui_input_paste(input, buf, (int)strlen(buf));
}
break;
default:
if (ui.key >= 32)
{
int cat = ucdn_get_general_category(ui.key);
if (ui.key == ' ' || (cat >= UCDN_GENERAL_CATEGORY_LL && cat < UCDN_GENERAL_CATEGORY_ZL))
{
char buf[8];
int n = fz_runetochar(buf, ui.key);
ui_input_paste(input, buf, n);
}
}
break;
}
return 0;
}
int
input_line(char *string, int length)
{
char curline[2000]; /* edit buffer */
int noline;
unsigned c;
int more;
int i;
if (first) {
poolinit(); /* build line pool */
first = 0;
}
noline = 1; /* no line fetched yet */
for (cl=cp=0; cl<length && cl<(int)sizeof(curline); ) {
if (usrbrk()) {
clrbrk();
break;
}
switch (c=input_char()) {
case F_RETURN: /* CR */
t_sendl("\r\n", 2); /* yes, print it and */
goto done; /* get out */
case F_CLRSCRN: /* clear screen */
asclrs();
t_sendl(curline, cl);
ascurs(0, cp);
break;
case F_CSRUP:
if (noline) { /* no line fetched yet */
getnext(); /* getnext so getprev gets current */
noline = 0; /* we now have line */
}
bstrncpy(curline, getprev(), sizeof(curline));
prtcur(curline);
break;
case F_CSRDWN:
noline = 0; /* mark line fetched */
bstrncpy(curline, getnext(), sizeof(curline));
prtcur(curline);
break;
case F_INSCHR:
insert_space(curline, sizeof(curline));
break;
case F_DELCHR:
delchr(1, curline, sizeof(curline)); /* delete one character */
break;
case F_CSRLFT: /* Backspace */
backup(curline);
break;
case F_CSRRGT:
forward(curline, sizeof(curline));
break;
case F_ERSCHR: /* Rubout */
backup(curline);
delchr(1, curline, sizeof(curline));
if (cp == 0) {
t_char(' ');
t_char(0x8);
}
break;
case F_DELEOL:
t_clrline(0, t_width);
if (cl > cp)
cl = cp;
break;
case F_NXTWRD:
i = next_word(curline);
while (i--) {
forward(curline, sizeof(curline));
}
break;
case F_PRVWRD:
i = prev_word(curline);
while (i--) {
backup(curline);
}
break;
case F_DELWRD:
delchr(next_word(curline), curline, sizeof(curline)); /* delete word */
break;
case F_NXTMCH: /* Ctl-X */
if (cl==0) {
*string = EOS; /* terminate string */
return(c); /* give it to him */
}
/* Note fall through */
case F_DELLIN:
case F_ERSLIN:
while (cp > 0) {
backup(curline); /* backup to beginning of line */
}
t_clrline(0, t_width); /* erase line */
cp = 0;
cl = 0; /* reset cursor counter */
t_char(' ');
t_char(0x8);
break;
case F_SOL:
while (cp > 0) {
backup(curline);
}
break;
case F_EOL:
while (cp < cl) {
forward(curline, sizeof(curline));
}
while (cp > cl) {
backup(curline);
}
break;
case F_TINS: /* toggle insert mode */
mode_insert = !mode_insert; /* flip bit */
break;
default:
if (c > 255) { /* function key hit */
if (cl==0) { /* if first character then */
*string = EOS; /* terminate string */
return c; /* return it */
}
t_honk_horn(); /* complain */
} else {
if ((c & 0xC0) == 0xC0) {
if ((c & 0xFC) == 0xFC) {
more = 5;
} else if ((c & 0xF8) == 0xF8) {
more = 4;
} else if ((c & 0xF0) == 0xF0) {
more = 3;
} else if ((c & 0xE0) == 0xE0) {
more = 2;
} else {
more = 1;
}
} else {
more = 0;
}
if (mode_insert) {
insert_space(curline, sizeof(curline));
}
curline[cp++] = c; /* store character in line being built */
t_char(c); /* echo character to terminal */
while (more--) {
c= input_char();
insert_hole(curline, sizeof(curline));
curline[cp++] = c; /* store character in line being built */
t_char(c); /* echo character to terminal */
}
if (cp > cl) {
cl = cp; /* keep current length */
curline[cp] = 0;
}
}
break;
} /* end switch */
}
/* If we fall through here rather than goto done, the line is too long
simply return what we have now. */
done:
curline[cl++] = EOS; /* terminate */
bstrncpy(string,curline,length); /* return line to caller */
/* Save non-blank lines. Note, put line zaps curline */
if (curline[0] != EOS) {
putline(curline,cl); /* save line for posterity */
}
return 0; /* give it to him/her */
}