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| author | Eric S. Raymond <esr@snark.thyrsus.com> | 1993-04-23 03:06:10 +0000 |
|---|---|---|
| committer | Eric S. Raymond <esr@snark.thyrsus.com> | 1993-04-23 03:06:10 +0000 |
| commit | 3c1771e0ac7f087758ac13414a442a896eeb9a1b (patch) | |
| tree | e2032337c9a410979fe432ceb4e6570c8f15587e /src/buffer.h | |
| parent | 2ba73b584b148b48fc275aef851f05bd6087ee39 (diff) | |
| download | emacs-3c1771e0ac7f087758ac13414a442a896eeb9a1b.tar.gz | |
(BUF_NARROWED, NARROWED): New macros to test whether a region
restriction has narrowed the buffer.
Diffstat (limited to 'src/buffer.h')
| -rw-r--r-- | src/buffer.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/buffer.h b/src/buffer.h index 5c09f30c40b..34d92fd61c7 100644 --- a/src/buffer.h +++ b/src/buffer.h @@ -53,6 +53,9 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ /* Character position of end of buffer. */ #define Z (current_buffer->text.z) +/* Is the current buffer narrowed? */ +#define NARROWED ((BEGV != BEG) || (ZV != Z)) + /* Modification count. */ #define MODIFF (current_buffer->text.modiff) @@ -98,6 +101,10 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ /* Character position of end of buffer. */ #define BUF_Z(buf) ((buf)->text.z) +/* Is this buffer narrowed? */ +#define BUF_NARROWED(buf) ((BUF_BEGV(buf) != BUF_BEG(buf)) \ + || (BUF_ZV(buf) != BUF_Z(buf))) + /* Modification count. */ #define BUF_MODIFF(buf) ((buf)->text.modiff) |