static inline int myisalnum(char *s)
{
int cat, c;
fz_chartorune(&c, s);
cat = ucdn_get_general_category(c);
if (cat >= UCDN_GENERAL_CATEGORY_LL && cat <= UCDN_GENERAL_CATEGORY_LU)
return 1;
if (cat >= UCDN_GENERAL_CATEGORY_ND && cat <= UCDN_GENERAL_CATEGORY_NO)
return 1;
return 0;
}
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;
}
static void generate_text(fz_context *ctx, fz_pool *pool, fz_html *box, const char *text)
{
fz_html *flow;
int collapse = box->style.white_space & WS_COLLAPSE;
int bsp = box->style.white_space & WS_ALLOW_BREAK_SPACE;
int bnl = box->style.white_space & WS_FORCE_BREAK_NEWLINE;
flow = box;
while (flow->type != BOX_FLOW)
flow = flow->up;
while (*text)
{
if (bnl && (*text == '\n' || *text == '\r'))
{
if (text[0] == '\r' && text[1] == '\n')
text += 2;
else
text += 1;
add_flow_break(ctx, pool, flow, &box->style);
}
else if (iswhite(*text))
{
const char *mark = text++;
if (collapse)
while (iswhite(*text))
++text;
/* TODO: tabs */
if (bsp)
add_flow_glue(ctx, pool, flow, &box->style, " ", 1);
else
add_flow_word(ctx, pool, flow, &box->style, mark, text);
}
else
{
const char *mark = text;
int c, addglue = 0;
while (*text && !iswhite(*text))
{
/* TODO: Unicode Line Breaking Algorithm (UAX #14) */
text += fz_chartorune(&c, text);
if (iscjk(c))
{
int cat = ucdn_get_general_category(c);
if (addglue && !not_at_bol(cat, c))
add_flow_glue(ctx, pool, flow, &box->style, "", 0);
add_flow_word(ctx, pool, flow, &box->style, mark, text);
if (!not_at_eol(cat, c))
addglue = 1;
mark = text;
}
else
{
addglue = 0;
}
}
if (mark != text)
add_flow_word(ctx, pool, flow, &box->style, mark, text);
}
}
}
