anmhi-scan - anmhi - nmh(7) interface that (ab)uses less, lesskey, tmux and entr
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       anmhi-scan
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            1 #!/bin/sh
            2 
            3 #
            4 # Copyright (c) 2018 Leonardo Taccari
            5 # All rights reserved.
            6 # 
            7 # Redistribution and use in source and binary forms, with or without
            8 # modification, are permitted provided that the following conditions
            9 # are met:
           10 # 
           11 # 1. Redistributions of source code must retain the above copyright
           12 #    notice, this list of conditions and the following disclaimer.
           13 # 2. Redistributions in binary form must reproduce the above copyright
           14 #    notice, this list of conditions and the following disclaimer in the
           15 #    documentation and/or other materials provided with the distribution.
           16 # 
           17 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
           18 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
           19 # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
           20 # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
           21 # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
           22 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
           23 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
           24 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
           25 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
           26 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
           27 # POSSIBILITY OF SUCH DAMAGE.
           28 #
           29 
           30 
           31 anmhi_scan_lines=$(stty size | cut -d ' ' -f 1)
           32 anmhi_scan_context="$(mhpath +)/$(mhparam context)"
           33 anmhi_scan_format="\
           34 %<(cur)%<(zputlit(underline))%>%>\
           35 %<(unseen)%<(zputlit(bold))%>%>\
           36 %<{status} %|N%>\
           37 %<{replied}R%?{encrypted}E%| %>\
           38 %6(msg) \
           39 %<(mymbox{from})%<{to}To: %13(unquote(decode(friendly{to})))%>%>\
           40 %<(zero)%17(unquote(decode(friendly{from})))%> \
           41 %3(day{date}) %3(month{date}) %02(mday{date}) \
           42 %02(hour{date}):%02(min{date}) \
           43 %(decode{subject})%(zputlit(resetterm))"
           44 
           45 
           46 #
           47 # Monitor context and mh-sequences files and continuosly update the screen when
           48 # they change.
           49 #
           50 ls "${anmhi_scan_context}" "$(mhpath +)"/*/"$(mhparam mh-sequences)" | \
           51 entr -c sh -c \
           52 '
           53         # Print current folder and (unread/total) messages
           54         flist | awk \
           55         '"'"'
           56         {
           57                 sub(/\+$/, "", $1);
           58                 printf("\033[1m%s (%d/%d)\033[0m\n", $1, $3, $9);
           59         }
           60         '"'"'
           61 
           62         # Print "current" emails
           63         scan -format '"\"${anmhi_scan_format}\""' \
           64             cur:-$(('"${anmhi_scan_lines}"' / 2)) \
           65             cur:$(('"${anmhi_scan_lines}"' / 2 - 1))
           66 ' \
           67 "anmhi-scan" /_