Introduce text_line_lastchar

2 files changed, 13 insertions, 4 deletions

diff --git a/text-motions.c b/text-motions.c
index 69afcc7..85deab8 100644
--- a/text-motions.c
+++ b/text-motions.c
@@ -126,6 +126,14 @@ size_t text_line_finish(Text *txt, size_t pos) {
 	return it.pos;
 }
 
+size_t text_line_lastchar(Text *txt, size_t pos) {
+	char c;
+	Iterator it = text_iterator_get(txt, text_line_end(txt, pos));
+	if (text_iterator_char_prev(&it, &c) && c == '\n')
+		text_iterator_byte_next(&it, NULL);
+	return it.pos;
+}
+
 size_t text_line_end(Text *txt, size_t pos) {
 	char c;
 	Iterator it = text_iterator_get(txt, pos);
diff --git a/text-motions.h b/text-motions.h
index 18457a5..4afa56b 100644
--- a/text-motions.h
+++ b/text-motions.h
@@ -21,16 +21,17 @@ size_t text_char_prev(Text*, size_t pos);
 size_t text_find_char_next(Text*, size_t pos, const char *s, size_t len);
 size_t text_find_char_prev(Text*, size_t pos, const char *s, size_t len);
 
-/*        begin            finish        next
- *        v                v             v
+/*        begin            finish  end   next
+ *        v                v       v     v
  *  [\r]\n      I am a line!       [\r]\n
- *  ^           ^                  ^
- *  prev        start              end
+ *  ^           ^                 ^
+ *  prev        start             lastchar
  */
 size_t text_line_prev(Text*, size_t pos);
 size_t text_line_begin(Text*, size_t pos);
 size_t text_line_start(Text*, size_t pos);
 size_t text_line_finish(Text*, size_t pos);
+size_t text_line_lastchar(Text*, size_t pos);
 size_t text_line_end(Text*, size_t pos);
 size_t text_line_next(Text*, size_t pos);
 /*