static void
print_normal_hunk (struct change *hunk)
{
lin first0, last0, first1, last1;
register lin i;
/* Determine range of line numbers involved in each file. */
enum changes changes = analyze_hunk (hunk, &first0, &last0, &first1, &last1);
if (!changes)
return;
begin_output ();
/* Print out the line number header for this hunk */
print_number_range (',', &files[0], first0, last0);
fprintf (outfile, "%c", change_letter[changes]);
print_number_range (',', &files[1], first1, last1);
fprintf (outfile, "\n");
/* Print the lines that the first file has. */
if (changes & OLD)
for (i = first0; i <= last0; i++)
print_1_line ("<", &files[0].linbuf[i]);
if (changes == CHANGED)
fprintf (outfile, "---\n");
/* Print the lines that the second file has. */
if (changes & NEW)
for (i = first1; i <= last1; i++)
print_1_line (">", &files[1].linbuf[i]);
}
static void
pr_forward_ed_hunk (struct change *hunk)
{
lin i, f0, l0, f1, l1;
/* Determine range of line numbers involved in each file. */
enum changes changes = analyze_hunk (hunk, &f0, &l0, &f1, &l1);
if (!changes)
return;
begin_output ();
fputc (change_letter[changes], outfile);
print_number_range (' ', files, f0, l0);
fputc ('\n', outfile);
/* If deletion only, print just the number range. */
if (changes == OLD)
return;
/* For insertion (with or without deletion), print the number range
and the lines from file 2. */
for (i = f1; i <= l1; i++)
print_1_line ("", &files[1].linbuf[i]);
fputs (".\n", outfile);
}
static void
print_ed_hunk (struct change *hunk)
{
lin f0, l0, f1, l1;
enum changes changes;
#ifdef DEBUG
debug_script (hunk);
#endif
/* Determine range of line numbers involved in each file. */
changes = analyze_hunk (hunk, &f0, &l0, &f1, &l1);
if (!changes)
return;
begin_output ();
/* Print out the line number header for this hunk */
print_number_range (',', &files[0], f0, l0);
fputc (change_letter[changes], outfile);
fputc ('\n', outfile);
/* Print new/changed lines from second file, if needed */
if (changes != OLD)
{
lin i;
bool insert_mode = true;
for (i = f1; i <= l1; i++)
{
if (!insert_mode)
{
fputs ("a\n", outfile);
insert_mode = true;
}
if (files[1].linbuf[i][0] == '.' && files[1].linbuf[i][1] == '\n')
{
/* The file's line is just a dot, and it would exit
insert mode. Precede the dot with another dot, exit
insert mode and remove the extra dot. */
fputs ("..\n.\ns/.//\n", outfile);
insert_mode = false;
}
else
print_1_line ("", &files[1].linbuf[i]);
}
if (insert_mode)
fputs (".\n", outfile);
}
}
