Mail Archives: djgpp/2013/02/06/14:58:32
This is a port of GNU Sed 4.2.2 to MSDOS/DJGPP.
sed is a stream editor. A stream editor is used to perform basic text
transformations on an input stream (a file or input from a pipeline).
While in some ways similar to an editor which permits scripted edits
(such as ed), sed works by making only one pass over the input(s), and
is consequently more efficient. But it is sed's ability to filter text
in a pipeline which particularly distinguishes it from other types of
editors.
Please, read carefully the NEWS file to see the user visible changes
and read the info or html docs to become familiar with the program.
For beginers the chapter: examples in the info doc may be instructive.
The chapter: Other resources for learning about 'sed' contains pointers
to usefull sed specific urls.
DJGPP specific changes.
=======================
- The input stream is switched to binary mode, if it does not come
from the
console, on platforms, like DOS/WIN95, that distinguish between
text and
binary files. This will allow to process files that contain embedded ^Z
and lone ^M characters.
- 8+3 valid file names will be generated for backup names of input
file names
if only SFN support is available. This concerns the '-i' option
(in-place
editing).
- To compile the sources, unistd.h and the popen/pclose functions
from the
CVS repository are used.
- No support for DJGPP's own regex function. They no longer do match
the GNU
regex ones. Here some work needs to be done before DJGPP's
functions will
again be a one-to-one substitute of GNU regex.
- The tst-pcre, tst-boost and tst-rxspencer tests have been excluded
from the
testsuite because they require getline() to be compiled. DJGPP
does not
offer this function. All other 79 tests will successfully pass.
As usual, all djgpp specific files (config.bat, diffs, readme
files, etc.)
are located in the /djgpp subdir.
Here is an extract of the NEWS file showing the user visible changes from
the last port (sed 4.2.1) to this one:
Sed 4.2.2
* don't misbehave (truncate input) for lines of length 2^31 and longer
* fix endless loop on incomplete multibyte sequences
* -u also does unbuffered input, rather than unbuffered output only
* New command `F' to print current input file name
* sed -i, s///w, and the `w' and `W' commands also obey the --binary option
(and create CR/LF-terminated files if the option is absent)
* --posix fails for scripts (or fragments as passed to the -e option) that
end in a backslash, as they are not portable.
* New option -z (--null-data) to separate lines by ASCII NUL characters.
* \x26 (and similar escaped sequences) produces a literal & in the
replacement argument of the s/// command, rather than including the
matched text.
----------------------------------------------------------------------------
The port has been compiled using stock djdev203 (patchlevel 2) and
consists
of the usual three packages that can be downloaded from
ftp.delorie.com and
mirrors as (timestamp 2013-02-05):
Sed 4.2.2 binary, info and man format documentation:
ftp://ftp.delorie.com/pub/djgpp/current/v2gnu/sed422b.zip
Sed 4.2.2 dvi, html, pdf and ps format documentation:
ftp://ftp.delorie.com/pub/djgpp/current/v2gnu/sed422d.zip
Sed 4.2.2 source:
ftp://ftp.delorie.com/pub/djgpp/current/v2gnu/sed422s.zip
The binaries have been produced a second time using the stock version of
djdev204 beta library. This package is available at ftp.delorie.com and
mirrors as (timestamp 2013-02-05):
Sed 4.2.2 binary, info and man format documentation:
ftp://ftp.delorie.com/pub/djgpp/beta/v2gnu/sed422b.zip
Send Sed specific bug reports to <bug-sed AT gnu DOT org>.
Send suggestions and bug reports concerning the DJGPP port
to comp.os.msdos.djgpp or <djgpp AT delorie DOT com>.
Enjoy.
Guerrero, Juan Manuel <juan DOT guerrero AT igd DOT fhg DOT de>
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