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tweaks: simplify a function now that a Unicode code can be typed quicker

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This commit is contained in:
Benno Schulenberg 2022-09-07 11:12:02 +02:00
parent 75e5f885e5
commit c98528f8d3
1 changed files with 15 additions and 32 deletions
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47
src/winio.c
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@ -1351,14 +1351,14 @@ int get_kbinput(WINDOW *frame, bool showcursor)
/* If the given symbol is a valid hexadecimal digit, multiply it by factor
* and add the result to the given unicode, and return PROCEED to signify
* okay. When not a hexadecimal digit, return the symbol itself. */
long add_unicode_digit(int symbol, long factor, long *unicode)
long add_unicode_digit(int symbol, long *unicode)
{
if ('0' <= symbol && symbol <= '9')
*unicode += (symbol - '0') * factor;
*unicode = (*unicode << 4) + symbol - '0';
else if ('a' <= tolower(symbol) && tolower(symbol) <= 'f')
*unicode += (tolower(symbol) - 'a' + 10) * factor;
*unicode = (*unicode << 4) + tolower(symbol) - 'a' + 10;
else if (symbol == '\r' || symbol == ' ')
return (*unicode / factor) >> 4;
return *unicode;
else
return INVALID_DIGIT;
@ -1374,47 +1374,30 @@ long assemble_unicode(int symbol)
static int digits = 0;
long retval = PROCEED;
switch (++digits) {
case 1:
unicode = 0;
retval = add_unicode_digit(symbol, 0x100000, &unicode);
break;
case 2:
retval = add_unicode_digit(symbol, 0x10000, &unicode);
break;
case 3:
retval = add_unicode_digit(symbol, 0x1000, &unicode);
break;
case 4:
retval = add_unicode_digit(symbol, 0x100, &unicode);
break;
case 5:
retval = add_unicode_digit(symbol, 0x10, &unicode);
break;
case 6:
retval = add_unicode_digit(symbol, 0x1, &unicode);
/* If also the sixth digit was a valid hexadecimal value, then
* the Unicode sequence is complete, so return it when valid. */
if (retval == PROCEED)
retval = (unicode < 0x110000) ? unicode : INVALID_DIGIT;
break;
}
retval = add_unicode_digit(symbol, &unicode);
/* If also the sixth digit was a valid hexadecimal value, then the
* Unicode sequence is complete, so return it (when it's valid). */
if (++digits == 6 && retval == PROCEED)
retval = (unicode < 0x110000) ? unicode : INVALID_DIGIT;
/* Show feedback only when editing, not when at a prompt. */
if (retval == PROCEED && currmenu == MMAIN) {
char partial[7] = "......";
/* Construct the partial result, left-padded with dots. */
snprintf(partial + 6 - digits, digits + 1, "%06lX", unicode);
sprintf(partial + 6 - digits, "%0*lX", digits, unicode);
/* TRANSLATORS: This is shown while a six-digit hexadecimal
* Unicode character code (%s) is being typed in. */
statusline(INFO, _("Unicode Input: %s"), partial);
}
/* If we have an end result, reset the Unicode digit counter. */
if (retval != PROCEED)
/* If we have an end result, reset the value and the counter. */
if (retval != PROCEED) {
unicode = 0;
digits = 0;
}
return retval;
}