vis

commit 92c2eeffb963bf0ba4adfdabdcf3809fa19e062b
parent c3edece34354ca4fa0820405c69a52dce6fbdaca
Author: Marc André Tanner <mat@brain-dump.org>
Date:   Sat, 24 Feb 2018 19:05:10 +0100

text-motion: implement text_line_blank_{prev,next}

Diffstat:
M
text-motions.c
 | 
23
+++++++++++++++++++++++
M
text-motions.h
 | 
3
+++

2 files changed, 26 insertions(+), 0 deletions(-)
diff --git a/text-motions.c b/text-motions.c
@@ -481,6 +481,29 @@ size_t text_line_empty_prev(Text *txt, size_t pos) {
 	return it.pos;
 }
 
+size_t text_line_blank_next(Text *txt, size_t pos) {
+	char c;
+	Iterator it = text_iterator_get(txt, pos);
+	while (text_iterator_byte_find_next(&it, '\n')) {
+		size_t n = it.pos;
+		while (text_iterator_byte_next(&it, &c) && blank(c));
+		if (c == '\n')
+			return n + 1;
+	}
+	return it.pos;
+}
+
+size_t text_line_blank_prev(Text *txt, size_t pos) {
+	char c;
+	Iterator it = text_iterator_get(txt, pos);
+	while (text_iterator_byte_find_prev(&it, '\n')) {
+		while (text_iterator_byte_prev(&it, &c) && blank(c));
+		if (c == '\n')
+			return it.pos + 1;
+	}
+	return it.pos;
+}
+
 size_t text_block_start(Text *txt, size_t pos) {
 	Filerange r = text_object_curly_bracket(txt, pos-1);
 	return text_range_valid(&r) ? r.start-1 : pos;
diff --git a/text-motions.h b/text-motions.h
@@ -55,6 +55,9 @@ size_t text_line_char_prev(Text*, size_t pos);
 /* move to the next/previous empty line */
 size_t text_line_empty_next(Text*, size_t pos);
 size_t text_line_empty_prev(Text*, size_t pos);
+/* move to start of next/previous blank line */
+size_t text_line_blank_next(Text*, size_t pos);
+size_t text_line_blank_prev(Text*, size_t pos);
 /* move to same offset in previous/next line */
 size_t text_line_up(Text*, size_t pos);
 size_t text_line_down(Text*, size_t pos);