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Allow overlapping transfer

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This commit is contained in:
Roberto E. Vargas Caballero 2018-03-04 16:08:57 +01:00 committed by sin
parent d849e6d4aa
commit 504dde1373
1 changed files with 10 additions and 8 deletions
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18
ed.c
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@ -19,6 +19,8 @@
#define LINESIZE 80
#define NUMLINES 32
#define CACHESIZ 4096
#define AFTER 0
#define BEFORE 1
typedef struct {
char *str;
@ -308,11 +310,11 @@ undo(void)
}
static void
inject(char *s, int j)
inject(char *s, int where)
{
int off, k, begin, end;
if (j) {
if (where == BEFORE) {
begin = getindex(curln-1);
end = getindex(nextln(curln-1));
} else {
@ -649,7 +651,7 @@ doread(const char *fname)
s[n-1] = '\n';
s[n] = '\0';
}
inject(s, 0);
inject(s, AFTER);
}
if (optdiag)
printf("%zu\n", cnt);
@ -767,7 +769,7 @@ append(int num)
while (getline(&s, &len, stdin) > 0) {
if (*s == '.' && s[1] == '\n')
break;
inject(s, 0);
inject(s, AFTER);
}
free(s);
}
@ -832,7 +834,7 @@ join(void)
addchar('\n', &s);
addchar('\0', &s);
delete(line1, line2);
inject(s.str, 1);
inject(s.str, BEFORE);
free(s.str);
}
@ -854,12 +856,12 @@ copy(int where)
{
int i;
if (!line1 || (where >= line1 && where <= line2))
if (!line1)
error("incorrect address");
curln = where;
for (i = line1; i <= line2; ++i)
inject(gettxt(i), 0);
inject(gettxt(i), AFTER);
}
static void
@ -1031,7 +1033,7 @@ subline(int num, int nth)
addpost(&s);
delete(num, num);
curln = prevln(num);
inject(s.str, 0);
inject(s.str, AFTER);
}
static void