Mercurial > vim
view runtime/doc/pi_logipat.txt @ 33083:79b2eb83f2df v9.0.1827
patch 9.0.1827: xxd: no color support
Commit: https://github.com/vim/vim/commit/e2528ae11134cdf35c312754b124aba4963d8054
Author: Aapo Rantalainen <aapo.rantalainen@gmail.com>
Date: Thu Aug 31 17:58:13 2023 +0200
patch 9.0.1827: xxd: no color support
Problem: xxd: no color support
Solution: Add color support using xxd -R
Add some basic color support for xxd
The hex-value and value are both colored with the same color depending
on the hex-value, e.g.:
0x00 = white
0xff = blue
printable = green
non-printable = red
tabs and linebreaks = yellow
Each character needs 11 more bytes to contain color. (Same color in a
row could contain only one overhead but the logic how xxd creates colums
must be then changed.) Size of colored output is increased by factor of
~6. Also grepping the output will break when colors is used.
Flag for color is "-R", because less uses "-R".
Color uses parameters auto,always,never same as less and grep (among
others).
E.g.
xxd -R always $FILE | less -R
Add some screen-tests (that currently on work on linux) to verify the
feature works as expected.
closes: #12131
Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Aapo Rantalainen <aapo.rantalainen@gmail.com>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Thu, 31 Aug 2023 18:15:03 +0200 |
parents | 9b7f90e56753 |
children |
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*pi_logipat.txt* Logical Patterns May 01, 2019 Author: Charles E. Campbell <NcampObell@SdrPchip.AorgM-NOSPAM> Copyright: (c) 2004-2016 by Charles E. Campbell *logiPat-copyright* The VIM LICENSE applies to LogiPat.vim and LogiPat.txt (see |copyright|) except use "LogiPat" instead of "Vim" No warranty, express or implied. Use At-Your-Own-Risk. ============================================================================== 1. Contents *logiPat* *logiPat-contents* 1. Contents.................: |logiPat-contents| 2. LogiPat Manual...........: |logiPat-manual| 3. LogiPat Examples.........: |logiPat-examples| 4. Caveat...................: |logiPat-caveat| 5. LogiPat History..........: |logiPat-history| ============================================================================== 2. LogiPat Manual *logiPat-manual* *logiPat-man* *logiPat-arg* *logiPat-input* *logiPat-pattern* *logiPat-operators* Boolean logic patterns are composed of operators ! = not | = logical-or & = logical-and grouping ( ... ) patterns "pattern" *logiPat-cmd* :LogiPat {boolean-logic pattern} *:LogiPat* :LogiPat is a command which takes a boolean-logic argument (|logiPat-arg|). :LP {boolean-logic pattern} *:LP* :LP is a shorthand command version of :LogiPat (|logiPat-cmd|). :LPE {boolean-logic pattern} *:LPE* No search is done, but the conversion from the boolean logic pattern to the regular expression is performed and echoed onto the display. :LogiPatFlags {search flags} *LogiPat-flags* LogiPat uses the |search()| command. The flags passed to that call to search() may be specified by the :LogiPatFlags command. :LPF {search flags} *:LPF* :LPF is a shorthand version of :LogiPatFlags. :let pat=LogiPat({boolean-logic pattern}) *LogiPat()* If one calls LogiPat() directly, no search is done, but the transformation from the boolean logic pattern into a regular expression pattern is performed and returned. To get a " inside a pattern, as opposed to having it delimit the pattern, double it. ============================================================================== 3. LogiPat Examples *logiPat-examples* LogiPat takes Boolean logic arguments and produces a regular expression which implements the choices. A series of examples follows: > :LogiPat "abc" < will search for lines containing the string :abc: > :LogiPat "ab""cd" < will search for lines containing the string :ab"cd: > :LogiPat !"abc" < will search for lines which don't contain the string :abc: > :LogiPat "abc"|"def" < will search for lines which contain either the string :abc: or the string :def: > :LogiPat !("abc"|"def") < will search for lines which don't contain either of the strings :abc: or :def: > :LogiPat "abc"&"def" < will search for lines which contain both of the strings :abc: and :def: > :let pat= LogiPat('!"abc"') < will return the regular expression which will match all lines not containing :abc: . The double quotes are needed to pass normal patterns to LogiPat, and differentiate such patterns from boolean logic operators. ============================================================================== 4. Caveat *logiPat-caveat* The "not" operator may be fragile; ie. it may not always play well with the & (logical-and) and | (logical-or) operators. Please try out your patterns, possibly with :set hls, to insure that what is matching is what you want. ============================================================================== 5. LogiPat History *logiPat-history* v4 Jun 22, 2015 * LogiPat has been picked up by Bram M for standard plugin distribution; hence the name change v3 Sep 25, 2006 * LP_Or() fixed; it now encapsulates its output in \%(...\) parentheses Dec 12, 2011 * |:LPE| added * "" is mapped to a single " and left inside patterns v2 May 31, 2005 * LPF and LogiPatFlags commands weren't working v1 May 23, 2005 * initial release ============================================================================== vim:tw=78:ts=8:noet:ft=help