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Simplify edit.c functions replace_{push,pop}.

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* Replace xmalloc (+memmove) with xrealloc
* Code style adjustments.
* Remove obsolete TODO comment
This commit is contained in:
oni-link 2014-05-19 08:43:41 +02:00 committed by Justin M. Keyes
parent 4464732503
commit 49306cfa02
1 changed files with 17 additions and 25 deletions
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42
src/nvim/edit.c
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@ -6242,37 +6242,33 @@ static int echeck_abbr(int c)
* For a newline, there are two NUL headed lists. One contains the characters
* that the NL replaced. The extra one stores the characters after the cursor
* that were deleted (always white space).
*
* Replace_offset is normally 0, in which case replace_push will add a new
* character at the end of the stack. If replace_offset is not 0, that many
* characters will be left on the stack above the newly inserted character.
*/
static char_u *replace_stack = NULL;
static ssize_t replace_stack_nr = 0; /* next entry in replace stack */
static ssize_t replace_stack_len = 0; /* max. number of entries */
void
replace_push (
int c /* character that is replaced (NUL is none) */
)
/// Push character that is replaced onto the the replace stack.
///
/// replace_offset is normally 0, in which case replace_push will add a new
/// character at the end of the stack. If replace_offset is not 0, that many
/// characters will be left on the stack above the newly inserted character.
///
/// @param c character that is replaced (NUL is none)
void replace_push(int c)
{
if (replace_stack_nr < replace_offset) /* nothing to do */
if (replace_stack_nr < replace_offset) { // nothing to do
return;
}
// TODO(philix): use xrealloc in replace_push()
if (replace_stack_len <= replace_stack_nr) {
replace_stack_len += 50;
void *aux = xmalloc(replace_stack_len);
if (replace_stack != NULL) {
memmove(aux, replace_stack, replace_stack_nr);
free(replace_stack);
}
replace_stack = aux;
replace_stack = xrealloc(replace_stack, replace_stack_len);
}
char_u *p = replace_stack + replace_stack_nr - replace_offset;
if (replace_offset)
if (replace_offset) {
memmove(p + 1, p, replace_offset);
}
*p = (char_u)c;
++replace_stack_nr;
}
@ -6292,16 +6288,12 @@ int replace_push_mb(char_u *p)
return l;
}
/*
* Pop one item from the replace stack.
* return -1 if stack empty
* return replaced character or NUL otherwise
*/
/// Pop one item from the replace stack.
///
/// @return -1 if stack is empty, replaced character or NUL otherwise
static int replace_pop(void)
{
if (replace_stack_nr == 0)
return -1;
return (int)replace_stack[--replace_stack_nr];
return (replace_stack_nr == 0) ? -1 : (int)replace_stack[--replace_stack_nr];
}
/*