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| author | Paul Eggert <eggert@cs.ucla.edu> | 2012-01-05 11:00:45 -0800 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2012-01-05 12:33:05 -0800 |
| commit | 3b4b3ee585509f69d72df963e73665f07b95923c (patch) | |
| tree | d208a3172ebf0dc401c9e798982803aa8d0c9d99 | |
| parent | b69f4c2834abc16202a6914230fac8806d3a3c7e (diff) | |
| download | autoconf-3b4b3ee585509f69d72df963e73665f07b95923c.tar.gz | |
doc: clarify sed buffer limit
* doc/autoconf.texi (Limitations of Usual Tools):
That 4000-byte limit applies to output and internal buffers, too.
| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | doc/autoconf.texi | 5 |
2 files changed, 9 insertions, 2 deletions
@@ -1,3 +1,9 @@ +2012-01-05 Paul Eggert <eggert@cs.ucla.edu> + + doc: clarify sed buffer limit + * doc/autoconf.texi (Limitations of Usual Tools): + That 4000-byte limit applies to output and internal buffers, too. + 2012-01-03 Paul Eggert <eggert@cs.ucla.edu> maint: update copyright year diff --git a/doc/autoconf.texi b/doc/autoconf.texi index 72ff7f89..ea2419bc 100644 --- a/doc/autoconf.texi +++ b/doc/autoconf.texi @@ -19256,8 +19256,9 @@ $ @kbd{echo a | sed 's/x/x/;;s/x/x/'} sed: 1: "s/x/x/;;s/x/x/": invalid command code ; @end example -Input should not have unreasonably long lines, since some @command{sed} -implementations have an input buffer limited to 4000 bytes. Likewise, +Some @command{sed} implementations have a buffer limited to 4000 bytes, +and this limits the size of input lines, output lines, and internal +buffers that can be processed portably. Likewise, not all @command{sed} implementations can handle embedded @code{NUL} or a missing trailing newline. |