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docs: explain the purpose of -! / --magic / 'set magic'

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Also, colorize 'set magic' as valid option in a nanorc file.
This commit is contained in:
Benno Schulenberg 2020-09-21 09:53:08 +02:00
parent 58a3293efc
commit 2c41600957
5 changed files with 25 additions and 1 deletions
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4
doc/nano.1
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@ -95,6 +95,10 @@ The default key bindings can be changed via a \fInanorc\fR file -- see
.SH OPTIONS
.TP
.BR \-! ", " \-\-magic
When neither the file's name nor its first line give a clue,
try using libmagic to determine the applicable syntax.
.TP
.BR \-% ", " \-\-stateflags
Use the top-right corner of the screen for showing some state flags:
\fBI\fR when auto-indenting, \fBM\fR when the mark is on, \fBL\fR when

11
doc/nano.texi
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@ -165,6 +165,11 @@ a command straight into a buffer, and then edit it.
@table @option
@item -!
@itemx --magic
When neither the file's name nor its first line give a clue,
try using libmagic to determine the applicable syntax.
@item -%
@itemx --stateflags
Use the top-right corner of the screen for showing some state flags:
@ -888,6 +893,12 @@ Display line numbers to the left of the text area.
@item set locking
Enable vim-style lock-files for when editing files.
@item set magic
When neither the file's name nor its first line give a clue,
try using libmagic to determine the applicable syntax.
(Calling libmagic can be relatively time consuming.
It is therefore not done by default.)
@anchor{@code{set matchbrackets}}
@item set matchbrackets "@var{characters}"
Specify the opening and closing brackets that can be found by bracket

6
doc/nanorc.5
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@ -170,6 +170,12 @@ Display line numbers to the left of the text area.
.B set locking
Enable vim-style lock-files for when editing files.
.TP
.B set magic
When neither the file's name nor its first line give a clue,
try using libmagic to determine the applicable syntax.
(Calling libmagic can be relatively time consuming.
It is therefore not done by default.)
.TP
.BI "set matchbrackets """ characters """
Specify the opening and closing brackets that can be found by bracket
searches. This may not include blank characters. The opening set must

3
doc/sample.nanorc.in
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@ -76,6 +76,9 @@
## no plans to implement vim-style undo state in these files.
# set locking
## Fall back to slow libmagic to try and determine an applicable syntax.
# set magic
## The opening and closing brackets that can be found by bracket
## searches. They cannot contain blank characters. The former set must
## come before the latter set, and both must be in the same order.

2
syntax/nanorc.nanorc
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@ -7,7 +7,7 @@ comment "#"
color brightred ".*"
# Keywords
color brightgreen "^[[:space:]]*(set|unset)[[:space:]]+(afterends|allow_insecure_backup|atblanks|autoindent|backup|boldtext|breaklonglines|casesensitive|constantshow|cutfromcursor|emptyline|historylog|indicator|jumpyscrolling|linenumbers|locking|mouse|multibuffer|noconvert|nohelp|nonewlines|positionlog|preserve|quickblank|rawsequences|rebinddelete|regexp|saveonexit|showcursor|smarthome|softwrap|stateflags|suspendable|tabstospaces|trimblanks|unix|view|wordbounds|zap)\>"
color brightgreen "^[[:space:]]*(set|unset)[[:space:]]+(afterends|allow_insecure_backup|atblanks|autoindent|backup|boldtext|breaklonglines|casesensitive|constantshow|cutfromcursor|emptyline|historylog|indicator|jumpyscrolling|linenumbers|locking|magic|mouse|multibuffer|noconvert|nohelp|nonewlines|positionlog|preserve|quickblank|rawsequences|rebinddelete|regexp|saveonexit|showcursor|smarthome|softwrap|stateflags|suspendable|tabstospaces|trimblanks|unix|view|wordbounds|zap)\>"
color yellow "^[[:space:]]*set[[:space:]]+((error|function|key|number|scroller|selected|status|stripe|title)color)[[:space:]]+(bold,)?(italic,)?(bright|light)?(white|black|red|blue|green|yellow|magenta|cyan|normal|pink|purple|mauve|lagoon|mint|lime|peach|orange|latte)?(,(light)?(white|black|red|blue|green|yellow|magenta|cyan|normal|pink|purple|mauve|lagoon|mint|lime|peach|orange|latte))?\>"
color brightgreen "^[[:space:]]*set[[:space:]]+(backupdir|brackets|errorcolor|functioncolor|keycolor|matchbrackets|numbercolor|operatingdir|punct|quotestr|scrollercolor|selectedcolor|speller|statuscolor|stripecolor|titlecolor|whitespace|wordchars)[[:space:]]+"
color brightgreen "^[[:space:]]*set[[:space:]]+(fill[[:space:]]+-?[[:digit:]]+|(guidestripe|tabsize)[[:space:]]+[1-9][0-9]*)\>"