emacs: use vundo instead of undo-tree, .bashrc: cleanup.

- configure lsp-ui-doc
- separate multiple cursor section
- Makefile-mode: Change fill-column to high, to prevent stupid indent
- Fix c-mode "/*" extra space on <return>

bash/base.sh

@@ -14,6 +14,31 @@
 
 CMDNAME=${0##*/}                                  # script name
 
+# some default values  (blocks separator padchar)
+# Attention: For output base 10, obase is 1
+declare -i ibase=0 obase=0 padding=0 prefix=1 ogroup=0 intbits
+
+# find out int size (bits) - suppose 2-complement, and 8 bits char
+printf -v _b "%x" -1
+(( intbits = ${#_b} * 4 ))
+
+declare -rA _bases=(                              # -f/-b accepted values
+    [2]=2   [b]=2  [B]=2
+    [8]=8   [o]=8  [O]=8
+    [10]=10 [d]=10 [D]=10
+    [16]=16 [h]=16 [H]=16
+    [a]=-1 [g]=-1
+)
+declare -A _pad=(                                 # group separator
+    [2]=" " [8]=" " [10]="," [16]=" "
+)
+declare -rA _ogroup=(                             # group size
+    [2]=8 [8]=3 [10]=3 [16]=4
+)
+declare -rA _oprefix=(                            # output prefix
+    [2]="2#" [8]="0" [10]="" [16]="0x"
+)
+
 usage() {
     printf "usage: %s [OPTIONS] [NUMBER]...\n" "$CMDNAME"
     printf  "Use '%s -h' for more help\n" "$CMDNAME"
@@ -22,13 +47,14 @@ usage() {
 help() {
     cat << _EOF
 usage: $CMDNAME [OPTIONS] [NUMBER]...
-  -f, --from=BASE      input base. Default is "g"
+  -f, --from=BASE      input base, see BASE below. Default is "g"
-  -t, --to=BASE        output base. Default is "a"
+  -t, --to=BASE        output base, see BASE below. Default is "a"
-  -2, -8, -d, -x       equivalent to -t2, -t8, -t10, -t16"
+  -b, -o, -d, -x       equivalent to -t2, -t8, -t10, -t16"
   -g, --group=[SEP]    group output (see OUTPUT below)
-  -0, --padding        Not implemented. 0-pad output on block boundary (implies -g)
+  -p, --padding        0-pad output on block boundary (implies -g)
-  -n, --noprefix       Remove base prefixes in output
+  -n, --noprefix       remove base prefixes in output
   -h, --help           this help
+  --                   end of options
 
 $CMDNAME output the NUMBERS arguments in different bases. If no NUMBER is
 given, standard input will be used.
@@ -40,67 +66,75 @@ BASE
   16, h, H, 0x         hexadecimal
   a, g                 all/any: Default, guess format for '-f', output all
                        bases for '-t'
+
 INPUT NUMBER
   If input base is not specified, some prefixes are supported.
   'b' or '2/' for binary, '0', 'o' or '8/' for octal, '0x', 'x' or
   '16/' for hexadecimal, and 'd' or '10/' for decimal.
-  If no prefix, decimal is assumed.
+  If no above prefix is found, decimal is assumed.
+  Decimal input may be signed or unsigned, with limits imposed by current
+  Bash (here: $intbits bits).
 
 OUTPUT
-  By default, output is the input number converted in the 4 supported
+  Decimal output is always unsigned.
-  bases (16, 10, 8, 2, in this order, separated by one tab character.
+  By default, the input number is shown converted in the 4 supported
+  bases (16, 10, 8, 2, in this order), separated by one tab character.
   Without '-n' option, all output numbers but decimal will be prefixed:
   '2#' for binary, '0' for octal, '0x' for hexadecimal, making them
   usable for input in some otilities such as bash(1).]
   With '-g' option, number digits will be grouped by 3 (octal,
-  decimal), or 4 (binary, hexadecimal)\n. If no SEP character is given,
+  decimal), 4 (hexadecimal), or 8 (binary). If no SEP character is given,
   the separator will be ',' (comma) for decimal, space otherwise.
-  This option may be useless if default output, with multiple numbers
+  This option may be useless for default output, with multiple numbers
   on one line.
-  The '-0' option will left pad with '0' (zeros) to a group boundary.
+  The '-p' option add 0 padding up to the base grouping boundary.
 
 EXAMPLES
+  Converting number in hexadecimal, decimal, octal, and binary, with or without
+  prefixes. Here, '\t' separator is shown as space:
+  $ $CMDNAME 0
+  0x0 0 0 2#0
+
   $ $CMDNAME 123456
-  2#11110001001000000 0361100 123456 0x1e240
+  0x1e240 123456 0361100 2#11110001001000000
-  $ $CMDNAME -n 123456
+
-  11110001001000000 361100 123456 1e240
+  $ $CMDNAME -n 2/100
-  $ $CMDNAME -ng2 012345
+  4 4 4 100
-  1 0100 1110 0101
+
-  $ $CMDNAME -n2 012345
+  $ $CMDNAME -n 0x1e240
-  1 0100 1110 0101
+  1e240	123456	361100	11110001001000000
+
+  Binary output, no prefix, grouped output:
+  $ $CMDNAME -bng 0x1e240
+  1 11100010 01000000
+
+  Negative input (decimal only):
+  $ $CMDNAME -x -- -1
+  0xffffffffffffffff
+
+  Input base indication, left padding binary output, no prefix:
+  $ $CMDNAME -nbp -f8 361100
+  00000001 11100010 01000000
+
+  Set group separator. Note that the separator *must* immediately follow the '-g'
+  option, without spaces:
+  $ $CMDNAME -nxg: 123456
+  1:e240
+
+  Long options, with separator and padding:
+  $ $CMDNAME --to=16 --noprefix --padding --group=: 12345
+  0001:e240
+
+TODO
+  Add option for signed/unsigned integer output.
+  Remove useless octal output ?
 _EOF
 }
 
-# some default values  (blocks separator padchar)
-declare -i ibase=0 obase=0 padding=0 noprefix=0 ogroup=0
-
-declare -rA _bases=(
-    [2]=2 [b]=2 [B]=2
-    [8]=8 [o]=8 [O]=8 [0]=8
-    [10]=10 [d]=10 [D]=10
-    [16]=16 [h]=16 [H]=16 [0x]=16
-    [a]=-1 [g]=-1
-)
-declare -A _pad=(
-    [2]=" " [8]=" " [10]="," [16]=" "
-)
-declare -rA _ogroup=(
-    [2]=4 [8]=3 [10]=3 [16]=4
-)
-declare -rA _oprefix=(
-    [2]="2#" [8]="0" [10]="" [16]="0x"
-)
-
 zero_pad() {
-    local base="$1" str="$2"
+    local n="$1" str="$2"
-    local str="$1"
-    local -i n=${_ogroup[$base]}
 
-    #printf "str=$str #=${#str}" >&2
+    printf "%0.*d%s" $(( n - ${#str} % n))  0 "$str"
-    while (( ${#str} < $2 )); do
-        str="0$str"
-    done
-    printf "%s" "$str"
 }
 
 split() {
@@ -108,25 +142,32 @@ split() {
     local res="$str" sep=${_pad[$base]}
     local -i n=${_ogroup[$base]}
 
+    (( padding )) && str=$(zero_pad "${_ogroup[$base]}" "$str")
     if (( ogroup )); then
         res=""
         while (( ${#str} )); do
-            if (( ${#str} < n )); then
+            if (( ${#str} <= n )); then           # finished
-                str=$(zero_pad "$str" $n)
+                res="${str}${res:+$sep$res}"
+                break
             fi
-            res="${str: -$n}${res:+$sep$res}"
+            res="${str: -n}${res:+$sep$res}"
-            str="${str:0:-$n}"
+            str="${str:0:-n}"
         done
     fi
     printf "%s" "$res"
 }
 
 bin() {
-    local n bits=""
+    local str=""
-    for (( n = $1 ; n > 0 ; n >>= 1 )); do
+    local -i n dec="$1"
-        bits=$((n&1))$bits
+
+    # take care of negative numbers, as >> operator keeps the sign.
+    # 'intbits' is size of integer in bits in current shell.
+    for (( n = 0 ; dec && (n < intbits); n++ )); do
+        str="$(( dec & 1 ))$str"
+        (( dec >>= 1 ))
     done
-    printf "%s\n" "${bits-0}"
+    printf "%s\n" "${str:-0}"
 }
 
 hex() {
@@ -145,7 +186,7 @@ declare -a args=()
 
 parse_opts() {
     # short and long options
-    local sopts="f:t:28dxg::pnh"
+    local sopts="f:t:bodxg::pnh"
     local lopts="from:,to:,group::,padding,noprefix,help"
     # set by options
     local tmp=""
@@ -174,9 +215,9 @@ parse_opts() {
                 fi
                 shift
                 ;;
-            "-2") obase=2 ;;
+            "-b") obase=2 ;;
-            "-8") obase=8 ;;
+            "-o") obase=8 ;;
-            "-d") obase=10 ;;
+            "-d") obase=1 ;;
             "-x") obase=16 ;;
             "-g"|"--group")
                 ogroup=1
@@ -185,47 +226,45 @@ parse_opts() {
                 fi
                 shift
                 ;;
-            "-p"|"--padding") padding=1 ;;
+            "-p"|"--padding") ogroup=1; padding=1 ;;
-            "-n"|"--noprefix") noprefix=1 ;;
+            "-n"|"--noprefix") prefix=0 ;;
             "-h"|"--help") help ; exit 0 ;;
             "--") shift; break ;;
             *) usage; echo "Internal error [$1]!" >&2; exit 1 ;;
         esac
         shift
     done
-    # parse remaining arguments
+    # next are numbers to convert, if any
-    if (($# > 0)); then                               # type
+    if (($# > 0)); then
         args=("$@")
     fi
 }
 
-# shellcheck disable=SC2317
 addprefix() {
-    local base="$1" number="$2"
+    local base="$1" number="$2" _prefix=""
-    local prefix=""
+    if (( prefix )); then
-    (( noprefix )) || prefix="${_oprefix[$base]}"
+        if [[ $base != 8 || $number != "0" ]]; then
-    printf "%s%s" "$prefix" "$number"
+            _prefix="${_oprefix[$base]}"
+        fi
+    fi
+    printf "%s%s" "$_prefix" "$number"
 }
 
 stripprefix() {
-    local number="$1"
+    [[ $1 =~ ^(0x|b|o|d|x|.*/) ]]
-    number=${number#0x}
+    printf "%s" "${1#"${BASH_REMATCH[1]}"}"
-    number=${number#[bodx0]}
-    number=${number#0}
-    number=${number#*/}
-    printf "%s" "$number"
 }
 
 guessbase() {
     local input="$1"
     local -i base=0
-    if [[ $input =~ ^b || $input =~ ^2/ ]]; then
+    if [[ $input =~ ^(b|2/) ]]; then
         base=2
-    elif [[ $input =~ ^0x || $input =~ ^x || $input =~ ^16/ ]]; then
+    elif [[ $input =~ ^(0x|x|16/) ]]; then
         base=16
-    elif [[ $input =~ ^0 || $input =~ ^o || $input =~ ^8/ ]]; then
+    elif [[ $input =~ ^(0|o|8/) ]]; then
         base=8
-    elif [[ $input =~ ^d || $input =~ ^10/ ]]; then
+    elif [[ $input =~ ^(d|10/) ]]; then
         base=10
     fi
     return $(( base ? base : 10 ))
@@ -240,7 +279,9 @@ doit() {
     fi
 
     inum=$(stripprefix "$number")
-    (( decval = "$base#$inum" ))                  # input value in decimal
+    # convert input value to decimal
+    (( base == 10 )) && (( decval = inum ))
+    (( base != 10 )) && (( decval = "$base#$inum" ))
 
     # mask for desired output: 1=decimal, others are same as base
     if (( ! _obase )); then
@@ -270,7 +311,7 @@ doit() {
 parse_opts "$@"
 
 if ! (( ${#args[@]} )); then
-    while read -ra line; do
+    while read -era line; do
         for input in "${line[@]}"; do
             doit "ibase" "$input"
         done

config/home/bashrc.br

@@ -15,7 +15,7 @@
 # i.e., add at the end of .bashrc:
 # [ -f "$HOME/.bashrc.$USER" ] && . "$HOME/.bashrc.$USER"
 #
-# Debian default ~/.profile does:
+# Debian default ~/.profile usually does:
 #   1) source .bashrc if it exists
 #   2) add "$HOME"/bin in PATH
 # This imply a duplicate "$HOME/bin" in PATH, as we do everything here.
@@ -78,10 +78,12 @@ _var_append() {
 }
 
 # adjust PATH. Below paths will be added at beginning.
-_lpath=("$HOME/bin/$(uname -s)-$(uname -m)"
+_lpath=("$HOME/bin/$(uname -s)-$(uname -m)"       # architecture specific
-        "$HOME/bin"
+        "$HOME/bin"                               # user scripts
+        "$HOME/.local/bin"                        # pip venv
         #"$HOME/.cargo/bin"
-        "/usr/local/bin")
+        "/usr/local/bin"
+       )
 
 # loop array in reverse order. Note: We do not test for path existence and add it
 # unconditionally, to avoid automounter interference.
@@ -100,7 +102,7 @@ ulimit -Sc 102400                                 # in 1024 bytes, 100Mb
 if hash less 2>/dev/null; then
     export PAGER=less
     # do not clear screen after "less", exit immediately if one page only
-    export LESS="-XFB"
+    export LESS="--quit-if-one-screen --no-init"
     # ... and just alias more... to less ;-)
     alias more=less
 fi
@@ -130,7 +132,8 @@ e() {
     $VISUAL "$@"
 }
 export -f e
-if hash emacs 2>/dev/null; then
+
+if hash emacs 2>/dev/null; then                   # look for Emacs...
     # uncomment below to use full emacs
     #export EDITOR=emacs
     # ... OR: uncomment below to use emacsclient
@@ -142,8 +145,7 @@ if hash emacs 2>/dev/null; then
     alias emacs="emacsclient -c"
     #alias crontab="VISUAL=emacsclient crontab -e"
     #alias crontab="emacs-crontab.sh"
-else
+else                                              # ... or clones, vim/vi, etc...
-    # emacs clones, then vim/vi, then... whatever left.
     _VISUALS=(zile jed mg e3em vim vi nano ed)
 
     for e in "${_VISUALS[@]}"; do
@@ -156,8 +158,7 @@ else
 fi
 export EDITOR=$VISUAL
 
-# look for a pdf viewer
+for _pdfviewer in atril qpdfview; do              # look for a pdf viewer
-for _pdfviewer in qpdfview atril; do
     if hash "$_pdfviewer" 2>/dev/null; then
         # shellcheck disable=SC2139
         alias acroread="$_pdfviewer"
@@ -189,7 +190,7 @@ export QUOTING_STYLE=literal
 # avoid these stupid systemd defaults (horizontal scroll and pager)
 alias systemctl="systemctl --no-pager --full"
 
-# useful aliases/functions
+# aliases/functions for usual commands (ls, history, grep...)
 alias l='ls -F'
 alias ls='ls -F'
 alias l1='ls -1F'

config/home/bashrc.br.lorien

@@ -65,13 +65,14 @@ _vardir() {
     # shellcheck disable=SC2139
     alias "$_a"="$_x"
 }
-_vardir AOC    aoc    +  ~/dev/advent-of-code     # Advent of code
+_vardir AOC    aoc     +  ~/dev/advent-of-code    # Advent of code
-_vardir WCHESS wchess -  ~/dev/www/crd/chess      # raoult.com chess
+_vardir WCHESS wchess  -  ~/dev/www/crd/chess     # raoult.com chess
-_vardir CHESS  chess  +  ~/dev/brchess            # brchess
+_vardir CHESS  chess   +  ~/dev/brchess           # brchess
-_vardir TOOLS  tools  -  ~/dev/tools              # tools
+_vardir CHESS  brchess +  ~/dev/brchess           # brchess
-_vardir BRLIB  brlib  -  ~/dev/brlib              # brlib
+_vardir TOOLS  tools   -  ~/dev/tools             # tools
-_vardir EUD    eud    +  ~/dev/eudyptula          # eudyptula
+_vardir BRLIB  brlib   -  ~/dev/brlib             # brlib
-_vardir DEV    dev    -  ~/dev                    # dev
+_vardir EUD    eud     +  ~/dev/eudyptula         # eudyptula
+_vardir DEV    dev     -  ~/dev                   # dev
 
 # Indent style for emacs
 # Local Variables:

config/home/bashrc.root

@@ -0,0 +1,211 @@
+#!/usr/bin/env bash
+#
+# ~/.bashrc.root - root bash startup
+#
+# (C) Bruno Raoult ("br"), 2001-2024
+# Licensed under the GNU General Public License v3.0 or later.
+# Some rights reserved. See COPYING.
+#
+# You should have received a copy of the GNU General Public License along with this
+# program. If not, see <https://www.gnu.org/licenses/gpl-3.0-standalone.html>.
+#
+# SPDX-License-Identifier: GPL-3.0-or-later <https://spdx.org/licenses/GPL-3.0-or-later.html>
+#
+# Usage: to be invoked from .bashrc.
+# i.e., add at the end of .bashrc:
+# [ -f "$HOME/.bashrc.$USER" ] && . "$HOME/.bashrc.$USER"
+#
+# Debian default ~/.profile usually does:
+#   1) source .bashrc if it exists
+#   2) add "$HOME"/bin in PATH
+# This imply a duplicate "$HOME/bin" in PATH, as we do everything here.
+# Better to have a ~/.bash_profile with the lines above.
+
+# _var_del() - remove an element from a colon-separated list.
+# $1: name (reference) of a colon separated list
+# $2: element to remove (string)
+#
+# _var_del() removes every occurrence of $2, if there are more than 1,
+# and leaves $1 unchanged if $2 is not present.
+#
+# Example:
+# With VAR's value being "foo:bar:quax:bar". Using "_var_del VAR bar" will
+# leave VAR with the value "foo:quax".
+_var_del() {
+    local -n _p_del=$1
+    local _l=":$_p_del:"
+
+    while [[ $_l =~ :$2: ]]; do
+          _l=${_l//:$2:/:}
+    done
+    _l=${_l%:}
+    _l=${_l#:}
+    _p_del="$_l"
+}
+
+# _var_prepend() - prepend element to colon-separated variable.
+# $1: variable name (reference)
+# $2: element to add (string)
+#
+# Any occurrence of $2 in $1 is first removed, then $2 is added at $1 beginning.
+#
+# Example:
+# With VAR's value being "foo:bar:quax:bar". Using "_var_prepend VAR bar"
+# will leave VAR with the value "bar:foo:quax".
+_var_prepend() {
+    local -n _p_prepend=$1
+
+    _var_del _p_prepend "$2"
+    [[ -z $_p_prepend ]] && _p_prepend="$2" && return
+    _p_prepend="$2:$_p_prepend"
+}
+
+# _var_append() - append element to colon-separated variable.
+# $1: variable name (reference)
+# $2: element to add (string)
+#
+# Any occurrence of $2 in $1 is first removed, then $2 is added at $1 end.
+#
+# Example:
+# With VAR's value being "foo:bar:quax:bar". Using "_var_append VAR bar"
+# will leave VAR with the value "foo:quax:bar".
+_var_append() {
+    local -n _p_append=$1
+
+    _var_del _p_append "$2"
+    [[ -z $_p_append ]] && _p_append="$2" && return
+    _p_append="$_p_append:$2"
+}
+
+# adjust PATH. Below paths will be added at beginning.
+_lpath=("$HOME/bin/$(uname -s)-$(uname -m)"
+        "$HOME/bin"
+        "/usr/local/bin")
+
+# loop array in reverse order. Note: We do not test for path existence and add it
+# unconditionally, to avoid automounter interference.
+for (( _i = ${#_lpath[@]} - 1; _i >= 0; --_i )); do
+    _var_prepend PATH "${_lpath[_i]}"
+done
+unset _lpath
+
+# enable core file
+ulimit -HSc 102400              # in 1024 bytes - Really cannot use KiB :-)
+
+# ... and set PAGER to less (for man(1) and others)
+if hash less 2>/dev/null; then
+    export PAGER=less
+    # do not clear screen after "less", exit immediately if one page only
+    export LESS="-XFB"
+    # ... and just alias more... to less ;-)
+    alias more=less
+fi
+
+# no output split for dc and bc / make bc silent
+export DC_LINE_LENGTH=0
+export BC_LINE_LENGTH=0
+export BC_ENV_ARGS=--quiet
+
+# both ubuntu and debian assume we want colors if TERM contains "color"
+# this is surely not true, as TERM is often forced by terminal emulator
+# shellcheck disable=SC2154
+PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
+case "$TERM" in
+    xterm*|rxvt*)
+        PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\u@\h: \w\a\]$PS1"
+        ;;
+    *)
+        ;;
+esac
+
+# trim prompt path
+export PROMPT_DIRTRIM=3
+
+# find a suitable editor
+e() {
+    $VISUAL "$@"
+}
+export -f e
+
+# no Emacs for root
+# emacs clones, then vim/vi, then... whatever left.
+_VISUALS=(zile mg jed vim vi nano ed)
+for e in "${_VISUALS[@]}"; do
+    if hash "$e" 2>/dev/null; then
+        export VISUAL="$e"
+        break
+    fi
+done
+unset _VISUALS
+export EDITOR=$VISUAL
+
+# append to the history file, don't overwrite it
+shopt -s histappend
+# write history after each command
+export PROMPT_COMMAND="history -a"
+# Add timestamp in history
+export HISTTIMEFORMAT="%d/%m %H:%M "
+# ignore history dups, delete all previous dups
+export HISTCONTROL="ignorespace:ignoredups:erasedups"
+# ignore these in history
+export HISTIGNORE="history *:h:hl:hll:hlll"
+# history size
+HISTSIZE=5000
+HISTFILESIZE=5000
+
+# remove new stupid Debian "ls" quoting, and colors...
+# Many complains, one of them:
+#    https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=813164#226
+export QUOTING_STYLE=literal
+[[ -v BASH_ALIASES[ls] ]] && unalias ls
+
+# aliases/functions for ls and history
+alias l='ls -F'
+alias ls='ls -F'
+alias l1='ls -1F'
+alias la='ls -AF'
+alias ll='ls -lF'
+alias lla='ls -lAF'
+alias ldl='ls -l | grep ^d'
+[[ -v BASH_ALIASES[lrt] ]] && unalias lrt
+lrt() {
+    local -i _l=20
+    if (( $# > 0 )) && [[ $1 =~ [[:digit:]]+ ]]; then
+        _l="$1"
+        shift
+    fi
+    # shellcheck disable=2012
+    ls -lrt "${1:-.}" | tail -"$_l"
+}
+[[ -v BASH_ALIASES[lart] ]] && unalias lart
+lart() {
+    local -i _l=20
+    if (( $# > 0 )) && [[ $1 =~ [[:digit:]]+ ]]; then
+        _l="$1"
+        shift
+    fi
+    # shellcheck disable=2012
+    ls -laFrt "${1:-.}" | tail -"$_l"
+}
+
+alias h="history   10"                            # short
+alias hl="history  25"                            # long
+alias hll="history 100"                           # very long
+alias hlll="history"                              # all history
+
+alias grep='grep --color=auto'                    # add colors to grep
+alias fgrep='fgrep --color=auto'
+alias egrep='egrep --color=auto'
+
+# misc aliases
+alias fuck='sudo $(history -p \!\!)'
+alias diff='diff -u'
+
+# Indent style for emacs
+# Local Variables:
+# mode: shell-script
+# sh-basic-offset: 4
+# sh-indentation: 4
+# indent-tabs-mode: nil
+# comment-column: 32
+# End:

config/home/emacs.d/init.el

@@ -15,6 +15,7 @@
 ;; (require 'use-package)
 (package-initialize)
 (setq use-package-always-ensure t)
+(use-package delight :ensure t)
 
 (add-to-list 'package-archives '("melpa" . "https://melpa.org/packages/"))
 ;;(add-to-list 'package-archives '("org" . "http://orgmode.org/elpa/"))
@@ -75,6 +76,8 @@
 (defun risky-local-variable-p (sym &optional _ignored) "Zoba SYM." nil)
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; swap modifier keysyms (japanese keyboard)
+;; Done in .xmodmap
+;;
 ;; windows key (super) becomes hyper
 ;;(setq x-super-keysym 'hyper)
 ;; alt key (meta) becomes super
@@ -253,23 +256,33 @@ Return new LIST-VAR value."
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ggtags
 (use-package ggtags
   :ensure t
-  :diminish ggtags-mode
+  :diminish "gg"
   :disabled t
-  :defer t
+  ;; :defer t
+  :after cc-mode
   :init
   (setq ggtags-global-window-height 28
         ggtags-enable-navigation-keys nil)
-
+  (add-hook 'c-mode-common-hook
-  (after cc-mode (add-hook 'c-mode-common-hook #'ggtags-mode))
+            (lambda ()
+              (when (derived-mode-p 'c-mode 'c++-mode 'java-mode)
+                (ggtags-mode 1))))
+  ;;(after cc-mode (add-hook 'c-mode-common-hook #'ggtags-mode))
 
   :config
   (bind-keys :map ggtags-mode-map
-             ("C-c g s" . ggtags-find-other-symbol)
+             ;;("C-c g s" . ggtags-find-other-symbol)
-             ("C-c g h" . ggtags-view-tag-history)
+             ;;("C-c g h" . ggtags-view-tag-history)
-             ("C-c g r" . ggtags-find-reference)
+             ;;("C-c g r" . ggtags-find-reference)
-             ("C-c g f" . ggtags-find-file)
+             ;;("C-c g f" . ggtags-find-file)
-             ("C-c g c" . ggtags-create-tags)
+             ;;("C-c g c" . ggtags-create-tags)
-             ("C-c g u" . ggtags-update-tags)
+             ;;("C-c g u" . ggtags-update-tags)
+             ("H-g s" . ggtags-find-other-symbol)
+             ("H-g h" . ggtags-view-tag-history)
+             ("H-g r" . ggtags-find-reference)
+             ("H-g f" . ggtags-find-file)
+             ("H-g c" . ggtags-create-tags)
+             ("H-g u" . ggtags-update-tags)
              ("M-," 'pop-tag-mark)))
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; projectile
@@ -277,6 +290,7 @@ Return new LIST-VAR value."
 (use-package projectile
   ;;:diminish projectile-mode
   :diminish " prj"
+  ;; :delight
   :ensure t
   :config
   ;;(define-key projectile-mode-map (kbd "s-p") 'projectile-command-map)
@@ -286,7 +300,9 @@ Return new LIST-VAR value."
         ;;projectile-indexing-method 'alien  ;; does not use ".projectile"
         projectile-indexing-method 'hybrid
         ;;projectile-indexing-method 'native
-        projectile-completion-system 'default)
+        projectile-completion-system 'auto
+        projectile-tags-backend 'ggtags)
+
   (add-to-list 'projectile-globally-ignored-files "*.png")
   (projectile-mode +1))
 
@@ -300,8 +316,10 @@ Return new LIST-VAR value."
   :config
   (setq magit-delete-by-moving-to-trash nil
         magit-clone-default-directory "~/dev/")
-  (magit-auto-revert-mode -1))
+  (magit-auto-revert-mode -1)
-
+  :bind
+  (("C-c g" . magit-file-dispatch)
+   ("C-x g" . magit-status)))
 
 (use-package git-gutter
   :diminish
@@ -430,12 +448,14 @@ Return new LIST-VAR value."
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; Some useful setups
 ;; mouse
 ;; does not change point when getting focus - DOES NOT WORK
-;;x-mouse-click-focus-ignore-position t
+;; (setq x-mouse-click-focus-ignore-position t)
 ;;focus-follows-mouse nil                ; must reflect WM settings
 ;;mouse-autoselect-window nil            ; pointer does not select window
 
 (global-set-key (kbd "C-h c") 'describe-char)
 (global-set-key (kbd "C-x 4 C-b") 'switch-to-buffer-other-window)
+(global-unset-key [mode-line mouse-3])            ; so disturbing mouse-3 there !
+
 
 ;; next example maps C-x C-x to the same as C-c
 ;; (global-set-key (kbd "C-x C-x") (lookup-key global-map (kbd "C-c")))
@@ -712,6 +732,25 @@ in whole buffer.  With neither, delete comments on current line."
     (while (re-search-forward "\\(^[[:space:]\n]+\\)\n" nil t)
       (replace-match "\n"))))
 
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; multiple cursors
+(use-package multiple-cursors
+  :bind
+  (("C-c m t"       . mc/mark-all-like-this)
+   ("C-c m m"       . mc/mark-all-like-this-dwim)
+   ("C-c m l"       . mc/edit-lines)
+   ("C-c m e"       . mc/edit-ends-of-lines)
+   ("C-c m a"       . mc/edit-beginnings-of-lines)
+   ("C-c m n"       . mc/mark-next-like-this)
+   ("C-c m p"       . mc/mark-previous-like-this)
+   ("C-c m s"       . mc/mark-sgml-tag-pair)
+   ("C-c m d"       . mc/mark-all-like-this-in-defun)
+   ("C->"           . mc/mark-next-like-this)
+   ("C-<"           . mc/mark-previous-like-this)
+   ("C-S-<mouse-1>" . mc/add-cursor-on-click)
+   ("C-M-m"         . mc/mark-all-dwim)))
+(use-package phi-search)
+(use-package phi-search-mc :config (phi-search-mc/setup-keys))
+
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; shell, eshell modes
 ;; will tell e-shell to run in visual mode
 '(eshell-visual-commands
@@ -844,41 +883,34 @@ in whole buffer.  With neither, delete comments on current line."
 
 (global-set-key (kbd "C-x w") 'compare-windows)
 
-;; multiple cursors
+;; as dot-mode uses <insert>, we allow overwrite-mode with S-<insert>
-(global-set-key (kbd "C->") 'mc/mark-next-like-this)
+(global-set-key (kbd "S-<insert>") 'overwrite-mode)
-(global-set-key (kbd "C-<") 'mc/mark-previous-like-this)
-(global-set-key (kbd "C-c C-<") 'mc/mark-all-like-this)
-(global-set-key (kbd "C-S-<mouse-1>") 'mc/add-cursor-on-click)
-(global-set-key (kbd "C-M-m") 'mc/mark-all-dwim)
 
-(global-set-key (kbd "C-x g") 'magit-status)
-
-;; (global-set-key (kbd "s-SPC") 'delete-blank-lines)
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; define my own keymap (s-c)
 ;; first, define a keymap, with Super-c as prefix.
-(defvar my/keys-mode-map (make-sparse-keymap)
+;; (defvar my/keys-mode-map (make-sparse-keymap)
-  "Keymap for my/keys-mode.")
+;;   "Keymap for my/keys-mode.")
 
-(defvar my/keys-mode-prefix-map (lookup-key global-map (kbd "s-c"))
+;; (defvar my/keys-mode-prefix-map (lookup-key global-map (kbd "s-c"))
-  "Keymap for custom key bindings starting with s-c prefix.")
+;;   "Keymap for custom key bindings starting with s-c prefix.")
 
-;; (define-key my/keys-mode-map (kbd "s-c") my/keys-mode-prefix-map)
+;; ;; (define-key my/keys-mode-map (kbd "s-c") my/keys-mode-prefix-map)
 
-(define-minor-mode my/keys-mode
+;; (define-minor-mode my/keys-mode
-  "A minor mode for custom key bindings."
+;;   "A minor mode for custom key bindings."
-  :lighter "s-c"
+;;   :lighter "s-c"
-  :keymap 'my/keys-mode-map
+;;   :keymap 'my/keys-mode-map
-  :global t)
+;;   :global t)
 
-(defun my/prioritize-keys
+;; (defun my/prioritize-keys
-    (file &optional noerror nomessage nosuffix must-suffix)
+;;     (file &optional noerror nomessage nosuffix must-suffix)
-  "Try to ensure that custom key bindings always have priority."
+;;   "Try to ensure that custom key bindings always have priority."
-  (unless (eq (caar minor-mode-map-alist) 'my/keys-mode)
+;;   (unless (eq (caar minor-mode-map-alist) 'my/keys-mode)
-    (let ((my/keys-mode-map (assq 'my/keys-mode minor-mode-map-alist)))
+;;     (let ((my/keys-mode-map (assq 'my/keys-mode minor-mode-map-alist)))
-      (assq-delete-all 'my/keys-mode minor-mode-map-alist)
+;;       (assq-delete-all 'my/keys-mode minor-mode-map-alist)
-      (add-to-list 'minor-mode-map-alist my/keys-mode-map))))
+;;       (add-to-list 'minor-mode-map-alist my/keys-mode-map))))
 
-(advice-add 'load :after #'my/prioritize-keys)
+;; (advice-add 'load :after #'my/prioritize-keys)
 
 ;;(global-set-key (kbd "C-c t") #'make-temp-buffer)
 ;;(define-key my/keys-mode-prefix-map (kbd "r b") #'revert-buffer)
@@ -998,27 +1030,59 @@ in whole buffer.  With neither, delete comments on current line."
   ;;(define-key whole-line-or-region-local-mode-map [remap uncomment-region] nil)
   )
 
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; undo tree
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; vundo / undo-tree / winner
-(use-package undo-tree
+;; vundo config from :
-  :diminish undo-tree-mode
+;; https://www.reddit.com/r/emacs/comments/txwwfi/vundo_is_great_visual_undotree_for_emacs28/
-  :defer t
+(use-package vundo
-  :init
+  :commands (vundo)
-  (progn
+
-    (defalias 'redo 'undo-tree-redo)
-    (defalias 'undo 'undo-tree-undo)
-    (global-undo-tree-mode 1))
   :config
-  (progn
+  ;; Take less on-screen space.
-    (setq undo-tree-visualizer-timestamps t
+  (setq vundo-compact-display t)
-          undo-tree-visualizer-diff t
+
-          undo-tree-enable-undo-in-region t
+  ;; Better contrasting highlight.
-          ;;undo-tree-auto-save-history t
+  (custom-set-faces
-          )
+    '(vundo-node ((t (:foreground "#808080"))))
-    (let ((undo-dir (concat my/emacs-tmpdir "/undo-tree/")))
+    '(vundo-stem ((t (:foreground "#808080"))))
-      (setq undo-tree-history-directory-alist
+    '(vundo-highlight ((t (:foreground "#FFFF00")))))
-            `(("." . ,undo-dir)))
+
-      (unless (file-exists-p undo-dir)
+  ;; Use `HJKL` VIM-like motion, also Home/End to jump around.
-        (make-directory undo-dir t)))))
+  ;; (define-key vundo-mode-map (kbd "l") #'vundo-forward)
+  (define-key vundo-mode-map (kbd "<right>") #'vundo-forward)
+  ;; (define-key vundo-mode-map (kbd "h") #'vundo-backward)
+  (define-key vundo-mode-map (kbd "<left>") #'vundo-backward)
+  ;; (define-key vundo-mode-map (kbd "j") #'vundo-next)
+  (define-key vundo-mode-map (kbd "<down>") #'vundo-next)
+  ;; (define-key vundo-mode-map (kbd "k") #'vundo-previous)
+  (define-key vundo-mode-map (kbd "<up>") #'vundo-previous)
+  (define-key vundo-mode-map (kbd "<home>") #'vundo-stem-root)
+  (define-key vundo-mode-map (kbd "<end>") #'vundo-stem-end)
+  (define-key vundo-mode-map (kbd "q") #'vundo-quit)
+  (define-key vundo-mode-map (kbd "C-g") #'vundo-quit)
+  (define-key vundo-mode-map (kbd "RET") #'vundo-confirm))
+
+(global-set-key (kbd "C-x u") 'vundo)
+
+;; (use-package undo-tree
+;;   :diminish undo-tree-mode
+;;   :defer t
+;;   :init
+;;   (progn
+;;     (defalias 'redo 'undo-tree-redo)
+;;     (defalias 'undo 'undo-tree-undo)
+;;     (global-undo-tree-mode 1))
+;;   :config
+;;   (progn
+;;     (setq undo-tree-visualizer-timestamps t
+;;           undo-tree-visualizer-diff t
+;;           undo-tree-enable-undo-in-region t
+;;           ;;undo-tree-auto-save-history t
+;;           )
+;;     (let ((undo-dir (concat my/emacs-tmpdir "/undo-tree/")))
+;;       (setq undo-tree-history-directory-alist
+;;             `(("." . ,undo-dir)))
+;;       (unless (file-exists-p undo-dir)
+;;         (make-directory undo-dir t)))))
 
 ;; useful to come back to working window after a buffer has popped up
 ;; C-c <left> to come back
@@ -1177,7 +1241,13 @@ in whole buffer.  With neither, delete comments on current line."
   ;; (message "entering Makefile-mode")
   (setq indent-tabs-mode t
         tab-width 8
-        comment-column 60))
+        comment-column 60
+        comment-fill-column 120)
+  ;;(defadvice comment-indent (around indent-to activate)
+  ;;  "Disable indent-tab-mode when indenting comment."
+  ;;  (lambda (fun &rest args) (let (indent-tabs-mode) (apply fun args))))
+
+)
 
 (add-hook 'makefile-mode-hook 'my/makefile-mode-hook)
 
@@ -1336,7 +1406,15 @@ in whole buffer.  With neither, delete comments on current line."
         comment-auto-fill-only-comments nil
         comment-style 'extra-line))
 
-(add-hook 'c-mode-hook 'my/c-style)
+(use-package cc-mode
+    :ensure nil
+    :config
+    (add-hook 'c-mode-common-hook
+              (lambda ()
+                ;;(when (derived-mode-p 'c-mode 'c++-mode 'java-mode 'asm-mode)
+                (when (derived-mode-p 'c-mode)
+                  (ggtags-mode 1))))
+    (add-hook 'c-mode-hook 'my/c-style))
 
 ;;;;;;;;;;;;; linux kernel style
 (defun c-lineup-arglist-tabs-only (ignored)
@@ -2115,8 +2193,8 @@ The output will appear in the buffer *PHP*."
 ;;; c-mode
     (sp-with-modes '(c-mode c++-mode)
       (sp-local-pair "{" nil :post-handlers '(("||\n[i]" "RET")))
-      (sp-local-pair "/*" "*/" :post-handlers '((" | " "SPC")
+      (sp-local-pair "/*" "*/" :post-handlers '(("| " "SPC")
-                                                      ("* ||\n[i]" "RET"))))
+                                                ("* ||\n[i]" "RET"))))
 ;;; markdown-mode
     (sp-with-modes '(markdown-mode gfm-mode rst-mode)
       (sp-local-pair "*" "*" :bind "C-*")
@@ -2174,7 +2252,7 @@ The output will appear in the buffer *PHP*."
         ;;lsp-enable-on-type-formatting      nil
         lsp-enable-snippet                 nil
         lsp-enable-symbol-highlighting     t
-        lsp-lens-enable                    t
+        lsp-lens-enable                    nil
         lsp-headerline-breadcrumb-enable   t
         lsp-enable-indentation             nil
         lsp-enable-on-type-formatting      nil
@@ -2183,6 +2261,8 @@ The output will appear in the buffer *PHP*."
         lsp-modeline-code-actions-enable   t
         lsp-modeline-code-actions-segments '(count icon name)
         lsp-signature-render-documentation t)
+  ;;(define-key lsp-mode-map (kbd "<mouse-3>") nil)
+  ;;(define-key lsp-mode-map (kbd "C-S-<mouse-3>") 'lsp-mouse-click)
   :hook
   ((sh-mode  . lsp-deferred)
    ;;(c-mode-common . lsp-deferred)
@@ -2192,14 +2272,22 @@ The output will appear in the buffer *PHP*."
   :ensure t
   ;;:diminish
   :config
-  (setq ; lsp-ui-doc-show-with-cursor        t
+  (setq lsp-ui-doc-show-with-cursor        t
-        ; lsp-ui-doc-show-with-mouse         t
+        lsp-ui-doc-show-with-mouse         nil    ; breaks isearch
-        lsp-ui-sideline-enable             t
+
-        lsp-ui-sideline-show-code-actions  t
+        lsp-ui-sideline-enable             nil    ; too messy
-        lsp-ui-sideline-enable             t
         lsp-ui-sideline-show-hover         t
-        lsp-ui-sideline-enable             t
+        lsp-ui-sideline-show-symbol        t
-        lsp-ui-doc-enable                  nil)
+        lsp-ui-sideline-show-code-actions  t
+        ;; lsp-ui-doc-enable                  nil
+        ;; TRIED 2024/02/26
+        lsp-ui-doc-enable                  t
+        lsp-ui-doc-max-width               80
+        lsp-ui-doc-max-height              20
+        lsp-ui-doc-include-signature       t      ; type signature in doc
+        lsp-ui-doc-enhanced-markdown       t      ; looks b0rken (lists...)
+        lsp-ui-doc-position                'top   ; top/bottom/at-point
+        lsp-ui-doc-alignment               'window)
 
   :commands
   (lsp-ui-mode)

config/home/emacs.d/lorien.el

@@ -35,14 +35,15 @@
 
   (defconst my/loaded-files-at-startup
     (list
-     "~/dev/brlib/Makefile"
      "~/dev/brchess/Makefile"
+     "~/dev/brlib/Makefile"
      ;;"~/org/boot-disk.org"
      ;;"~/org/beaglebone-buster-setup.org"
      ;;"~/dev/www/cf.bodi/sql/coc.sql"
      ;;"~/dev/www/cf.bodi/sql/coc-sql.org"
      user-init-file
-     "~/dev/tools/bash/Makefile"
+     ;; "~/dev/tools/bash/Makefile"
+     "~/dev/brchess/src/board.c"
      "~/org/emacs-cheatsheet.org")
       ;;"~/dev/g910/g910-gkey-macro-support/lib/data_mappers/char_uinput_mapper.py"
       ;;"~/dev/advent-of-code/2022/Makefile"