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/* See LICENSE file for copyright and license details. */
#include "common.h"
int
libpatch_format_ed_patch(struct libpatch_diff2_printer *printer, struct libpatch_diff2 *diff, size_t difflen,
const struct libpatch_file *file1, const struct libpatch_file *file2)
{
size_t i, j, n, ai, bi, bj, an, bn;
int stopped;
ai = file1->nlines;
bi = file2->nlines;
for (i = difflen; (n = libpatch_previous_hunk(diff, &i, &ai, &bi, &an, &bn, 1));) {
printer->put_hunk_head_prefix(printer, "", 0);
printer->put_hunk_start(printer, "", ai + (an ? 1U : 0U), 1);
if (an > 1)
printer->put_hunk_end(printer, ",", ai + an, 1);
printer->put_hunk_operation(printer, !bn ? "d" : !an ? "a" : "c", an > 0, bn > 0);
printer->put_hunk_head_suffix(printer, "", 0);
printer->put_newline(printer);
if (bn) {
bj = bi;
stopped = 0;
for (; i < n; i++) {
for (j = 0; j < diff[i].repetition; j++) {
if (diff[i].change != LIBPATCH_DIFF2_FILE1_ONLY) {
if (stopped) {
stopped = 0;
printer->put_end_of_change(printer, "a");
printer->put_newline(printer);
}
printer->put_change_prefix(printer, "", 2, an > 0, bj);
if (file2->lines[bj]->len == 1 && file2->lines[bj]->text[0] == '.') {
printer->put_syntactical_escape(printer, ".");
printer->put_line(printer, file2->lines[bj++]);
printer->put_newline(printer);
printer->put_end_of_change(printer, ".");
printer->put_newline(printer);
printer->put_end_of_change(printer, "s/.//");
printer->put_newline(printer);
stopped = 1;
} else {
printer->put_line(printer, file2->lines[bj++]);
printer->put_newline(printer);
}
}
}
}
if (!stopped)
printer->put_end_of_change(printer, ".");
printer->put_newline(printer);
}
}
return 0;
}
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