text: add iterator accessor function which translates \r\n to \n

2 files changed, 14 insertions, 0 deletions

diff --git a/text.c b/text.c
index f75a5e7..b8d5d90 100644
--- a/text.c
+++ b/text.c
@@ -1379,6 +1379,17 @@ bool text_iterator_byte_get(Iterator *it, char *b) {
 	return false;
 }
 
+bool text_iterator_char_get(Iterator *it, char *c) {
+	bool ret = text_iterator_byte_get(it, c);
+	if (ret && *c == '\r') {
+		char d;
+		if (text_iterator_byte_next(it, &d) && d == '\n')
+			*c = '\n';
+		return text_iterator_byte_prev(it, NULL);
+	}
+	return ret;
+}
+
 bool text_iterator_next(Iterator *it) {
 	return text_iterator_init(it, it->pos, it->piece ? it->piece->next : NULL, 0);
 }
diff --git a/text.h b/text.h
index b927e3f..8559b36 100644
--- a/text.h
+++ b/text.h
@@ -86,6 +86,9 @@ bool text_iterator_prev(Iterator*);
 /* get byte at current iterator position, if this is at EOF a NUL
  * byte (which is not actually part of the file) is read. */
 bool text_iterator_byte_get(Iterator*, char *b);
+/* same as byte get, but if a sequence of '\r\n' is read at the
+ * iterator position, *c is set to \n instead of \r. */
+bool text_iterator_char_get(Iterator*, char *c);
 /* advance iterator by one byte and get byte at new position. */
 bool text_iterator_byte_prev(Iterator*, char *b);
 /* if the new position is at EOF a NUL byte (which is not actually