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tweaks: trim some comments, and simplify a condition

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This commit is contained in:
Benno Schulenberg 2016-07-24 13:44:16 +02:00
parent 4416d9c941
commit a472f480a7
1 changed files with 10 additions and 24 deletions
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34
src/winio.c
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@ -1241,50 +1241,36 @@ long get_unicode_kbinput(WINDOW *win, int kbinput)
switch (uni_digits) {
case 1:
/* First digit: This must be zero or one. Put it in the
* 0x100000's position of the Unicode sequence holder. */
if ('0' <= kbinput && kbinput <= '1')
/* The first digit must be zero or one. Put it in the
* 0x100000's position of the Unicode sequence holder.
* Otherwise, return the character itself as the result. */
if (kbinput == '0' || kbinput == '1')
uni = (kbinput - '0') * 0x100000;
else
/* This isn't the first digit of a Unicode sequence.
* Return this character as the result. */
retval = kbinput;
break;
case 2:
/* Second digit: This must be zero if the first was one, and
* may be any hexadecimal value if the first was zero. Put
* it in the 0x10000's position of the Unicode sequence
* holder. */
if (uni == 0 || '0' == kbinput)
/* The second digit must be zero if the first was one, but
* may be any hexadecimal value if the first was zero. */
if (kbinput == '0' || uni == 0)
retval = add_unicode_digit(kbinput, 0x10000, &uni);
else
/* This isn't the second digit of a Unicode sequence.
* Return this character as the result. */
retval = kbinput;
break;
case 3:
/* Third digit: This may be any hexadecimal value. Put it
* in the 0x1000's position of the Unicode sequence
* holder. */
/* Later digits may be any hexadecimal value. */
retval = add_unicode_digit(kbinput, 0x1000, &uni);
break;
case 4:
/* Fourth digit: This may be any hexadecimal value. Put it
* in the 0x100's position of the Unicode sequence
* holder. */
retval = add_unicode_digit(kbinput, 0x100, &uni);
break;
case 5:
/* Fifth digit: This may be any hexadecimal value. Put it
* in the 0x10's position of the Unicode sequence holder. */
retval = add_unicode_digit(kbinput, 0x10, &uni);
break;
case 6:
/* Sixth digit: This may be any hexadecimal value. Put it
* in the 0x1's position of the Unicode sequence holder. */
retval = add_unicode_digit(kbinput, 0x1, &uni);
/* If this character is a valid hexadecimal value, then the
* Unicode sequence is complete. */
/* If also the sixth digit was a valid hexadecimal value, then
* the Unicode sequence is complete, so return it. */
if (retval == ERR)
retval = uni;
break;