Commit graph

19 commits

Author SHA1 Message Date
Karel Zak
3b5db50f73 libsmartcols: change "export" behavior, add "shellvar" flag
In version 2.37 the "export" output format automatically modifies
column names to be compatible with shell's requirements for variable
names. This change was backwardly incompatible for people who use for
example "lsblk -P" in non-shell environment.

It's painful to modify this behavior again in v2.38, but it seems
better to add a way how to control this behavior independently on
output format as it seems attractive feature for more use-cases.

This commit introduces scols_table_enable_shellvar() function to
enable/disable this feature.

It also introduces

	scols_column_set_name
	scols_column_get_name
	scols_column_get_name_as_shellvar
	scols_table_is_shellvar

to make it easy to work with column names.

Fixes: https://github.com/util-linux/util-linux/issues/1594
Signed-off-by: Karel Zak <kzak@redhat.com>
2022-02-11 12:06:41 +01:00
Karel Zak
045e7efabd libsmartcols: (sample) remove unused variable
Signed-off-by: Karel Zak <kzak@redhat.com>
2020-07-14 12:32:56 +02:00
Karel Zak
04e6ab9c1b libsmartcols: (sample) remove unnecessary check [coverity scan]
@str cannot be NULL ...

Signed-off-by: Karel Zak <kzak@redhat.com>
2020-07-14 12:21:22 +02:00
Karel Zak
8aedaf592e libsmartcols: (sample) check scols_line_set_data() return code [coverity scan]
Signed-off-by: Karel Zak <kzak@redhat.com>
2020-07-14 11:36:23 +02:00
Karel Zak
94dbb32273 libsmartcols: cleanup and extend padding functionality
LIBSMARTCOLS_DEBUG_PADDING=on in the next examples forces libsmartcols
print '.' as a padding char. See line "ffff" in the exmaples.

* default output is to fill all except last cell

	$ LIBSMARTCOLS_DEBUG_PADDING=on ./sample-scols-fromfile --nlines 10  --width 80 --column tests/ts/libsmartcols/files/col-name --column tests/ts/libsmartcols/files/col-number --column tests/ts/libsmartcols/files/col-string --column tests/ts/libsmartcols/files/col-string tests/ts/libsmartcols/files/data-string tests/ts/libsmartcols/files/data-number tests/ts/libsmartcols/files/data-string-empty tests/ts/libsmartcols/files/data-string-empty 2> /dev/null
	NAME.. ......NUM STRINGS STRINGS
	aaaa.. ........0 aaaa... aaaa
	bbb... ......100 bbb.... bbb
	ccccc. .......21 ccccc.. ccccc
	dddddd ........3 dddddd. dddddd
	ee.... ......411 ee..... ee
	ffff.. .....5111 .......
	gggggg 678993321 gggggg. gggggg
	hhh... ..7666666 hhh.... hhh

* scols_table_enable_minout() minimizes output for tailing empty cells, example:

	$ LIBSMARTCOLS_DEBUG_PADDING=on ./sample-scols-fromfile --nlines 10 --minout  --width 80 --column tests/ts/libsmartcols/files/col-name --column tests/ts/libsmartcols/files/col-number --column tests/ts/libsmartcols/files/col-string --column tests/ts/libsmartcols/files/col-string tests/ts/libsmartcols/files/data-string tests/ts/libsmartcols/files/data-number tests/ts/libsmartcols/files/data-string-empty tests/ts/libsmartcols/files/data-string-empty 2> /dev/null
	NAME.. ......NUM STRINGS STRINGS
	aaaa.. ........0 aaaa... aaaa
	bbb... ......100 bbb.... bbb
	ccccc. .......21 ccccc.. ccccc
	dddddd ........3 dddddd. dddddd
	ee.... ......411 ee..... ee
	ffff.. .....5111
	gggggg 678993321 gggggg. gggggg
	hhh... ..7666666 hhh.... hhh

* cleanup up scols_table_enable_maxout() use, example:

	$ LIBSMARTCOLS_DEBUG_PADDING=on ./sample-scols-fromfile --nlines 10 --maxout  --width 80 --column tests/ts/libsmartcols/files/col-name --column tests/ts/libsmartcols/files/col-number --column tests/ts/libsmartcols/files/col-string --column tests/ts/libsmartcols/files/col-string tests/ts/libsmartcols/files/data-string tests/ts/libsmartcols/files/data-number tests/ts/libsmartcols/files/data-string-empty tests/ts/libsmartcols/files/data-string-empty 2> /dev/null
	NAME.............. ..................NUM STRINGS............ STRINGS............
	aaaa.............. ....................0 aaaa............... aaaa...............
	bbb............... ..................100 bbb................ bbb................
	ccccc............. ...................21 ccccc.............. ccccc..............
	dddddd............ ....................3 dddddd............. dddddd.............
	ee................ ..................411 ee................. ee.................
	ffff.............. .................5111 ................... ...................
	gggggg............ ............678993321 gggggg............. gggggg.............
	hhh............... ..............7666666 hhh................ hhh................

Note that we cannot make scols_table_enable_minout() default because
for example "column --table" is pretty commonly used with non-blank
columns separator and in this case all cells has to be filled.

	$ echo -e "aa,b,ccc\na,,\naaa,bbb,ccc" |  column --table --separator ',' --output-separator '|'
	aa |b  |ccc
	a  |   |
	aaa|bbb|ccc

Addresses: https://github.com/karelzak/util-linux/issues/826
Signed-off-by: Karel Zak <kzak@redhat.com>
2019-07-23 16:24:42 +02:00
Karel Zak
d1bf0ce5fa libsmartcols: fix mem-leaks in samples
Signed-off-by: Karel Zak <kzak@redhat.com>
2017-11-23 15:24:59 +01:00
Ruediger Meier
6e1eda6f22 misc: never use usage(stderr)
Here we fix all cases where we have usage(FILE*)
functions.

Signed-off-by: Ruediger Meier <ruediger.meier@ga-group.nl>
2017-06-26 14:38:24 +02:00
Sami Kerola
71f08e9706
tests: do not use plain 0 as NULL [smatch scan]
Likewise commit 8791804065.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2017-03-17 21:22:26 +00:00
Sami Kerola
4ff3d13b43
libsmartcols: fix test variable shadowing
libsmartcols/samples/fromfile.c:57:16: warning: declaration of 'flags'
shadows a global declaration [-Wshadow]
libsmartcols/samples/fromfile.c:29:33: note: shadowed declaration is here
libsmartcols/samples/fromfile.c:101:8: warning: declaration of 'flags'
shadows a global declaration [-Wshadow]

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2017-03-17 21:22:26 +00:00
Yuri Chornoivan
a7349ee315 docs: Fix word repetitions 2017-02-13 14:10:12 +01:00
Ruediger Meier
332123f2b6 misc: fix some compiler warnings
libsmartcols/samples/fromfile.c:59:2: warning: passing argument 3 of 'string_to_bitmask' from incompatible pointer type
  text-utils/pg.c:79:0: warning: "TABSIZE" redefined
  libblkid/src/read.c:455:13: warning: 'debug_dump_dev' defined but not used [-Wunused-function]
  libblkid/src/probe.c:769:13: warning: unused function 'cdrom_size_correction' [-Wunused-function]
  /usr/include/sys/termios.h:3:2: warning: "this file includes <sys/termios.h> which is deprecated, use <termios.h> instead" [-W#warnings]

Signed-off-by: Ruediger Meier <ruediger.meier@ga-group.nl>
2016-10-27 11:03:24 +02:00
Karel Zak
949ea05f1a libsmartcols: support custom wrap and remove SCOLS_FL_WRAPNL
This new API provides full control on multi-line cells, you can wrap
text by new lines (build-in support) or by another way (after words,
commas, etc.) Changes:

* new scols_column_set_wrapfunc() sets pointers to two callback functions

   1/ chunksize() - returns largest data chunk size; used when we
                    calculate columns width
   2/ nextchunk() - terminate the current chunk and returns pointer to
                    the next; used when we print data

* remove SCOLS_FL_WRAPNL and add new functions scols_wrapnl_chunksize()
  and scols_wrapnl_nextchunk() to provide build-in functionality to
  wrap cells on \n

* remove scols_column_is_wrapnl() add scols_column_is_customwrap()
  (returns true if custom wrap functions are defined)

* add scols_column_set_safechars() and scols_column_get_safechars() to
  allow to control output encoding, safe chars are not encoded by \xFOO

* modify "fromfile" test code to use build-in scols_wrapnl_* callbacks
  for "wrapnl" tests

* add new function scols_column_get_table()

Signed-off-by: Karel Zak <kzak@redhat.com>
2016-09-26 11:20:07 +02:00
Karel Zak
695fd479be tests: add columns separator to libsmartcols test
Signed-off-by: Karel Zak <kzak@redhat.com>
2016-09-16 14:18:01 +02:00
Karel Zak
4a2b50f238 tests: add export and raw to libsmartcols test
Signed-off-by: Karel Zak <kzak@redhat.com>
2016-09-16 13:49:37 +02:00
Karel Zak
6a82714dbf libsmartcols: add JSON support to sample application
Signed-off-by: Karel Zak <kzak@redhat.com>
2016-09-16 13:30:29 +02:00
Karel Zak
18ff51547d libsmartcols: add support for trees to the sample application
Signed-off-by: Karel Zak <kzak@redhat.com>
2016-09-15 12:12:18 +02:00
Karel Zak
36eb51ebb4 tests: add libsmartcols title test
Signed-off-by: Karel Zak <kzak@redhat.com>
2016-09-14 12:49:46 +02:00
Karel Zak
a414a17093 tests: improve libsmartcols test
Signed-off-by: Karel Zak <kzak@redhat.com>
2016-09-13 14:12:11 +02:00
Karel Zak
fa4691833a libsmartcols: add application to test library features
Signed-off-by: Karel Zak <kzak@redhat.com>
2016-09-13 13:08:02 +02:00