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Add Zstandard compression support for etags

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* lib-src/etags.c: (compressors): Add zstd support.
(print_language_names): Report zstd support.
* doc/man/etags.1: Update doc.
This commit is contained in:
Alexander Gramiak 2019-06-24 15:54:36 +02:00 • committed by Lars Ingebrigtsen
parent 65d45def8d
commit f9afe8a97e
3 changed files with 6 additions and 2 deletions
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2
doc/man/etags.1
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@ -64,7 +64,7 @@ Files specified with absolute file names will be recorded
with absolute file names. Files generated from a source file\-\-like with absolute file names. Files generated from a source file\-\-like
a C file generated from a source Cweb file\-\-will be recorded with a C file generated from a source Cweb file\-\-will be recorded with
the name of the source file. the name of the source file.
Compressed files are supported using gzip, bzip2, and xz. Compressed files are supported using gzip, bzip2, xz, and zstd.
The programs recognize the language used in an input file based on its The programs recognize the language used in an input file based on its
file name and contents. The \fB\-\-language\fP switch can be used to force file name and contents. The \fB\-\-language\fP switch can be used to force
parsing of the file names following the switch according to the given parsing of the file names following the switch according to the given

3
etc/NEWS
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@ -584,6 +584,9 @@ The mode is automatically enabled in files that start with the
use the new 'fileloop-initialize' and 'fileloop-continue' functions use the new 'fileloop-initialize' and 'fileloop-continue' functions
instead. instead.
+++
*** etags is now able to read Zstandard-compressed files.
** bibtex ** bibtex
--- ---

3
lib-src/etags.c
View file

@ -519,6 +519,7 @@ static compressor compressors[] =
{ "GZ", "gzip -d -c"}, { "GZ", "gzip -d -c"},
{ "bz2", "bzip2 -d -c" }, { "bz2", "bzip2 -d -c" },
{ "xz", "xz -d -c" }, { "xz", "xz -d -c" },
{ "zst", "zstd -d -c -q" },
{ NULL } { NULL }
}; };
@ -861,7 +862,7 @@ followed by the name of an interpreter. If no such sequence is found,\n\
Fortran is tried first; if no tags are found, C is tried next.\n\ Fortran is tried first; if no tags are found, C is tried next.\n\
When parsing any C file, a \"class\" or \"template\" keyword\n\ When parsing any C file, a \"class\" or \"template\" keyword\n\
switches to C++."); switches to C++.");
puts ("Compressed files are supported using gzip, bzip2, and xz.\n\ puts ("Compressed files are supported using gzip, bzip2, xz, and zstd.\n\
\n\ \n\
For detailed help on a given language use, for example,\n\ For detailed help on a given language use, for example,\n\
etags --help --lang=ada."); etags --help --lang=ada.");