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#!/usr/bin/env ruby |
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# This is a simple script that takes vcal attachments and displays them in |
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# pure text. This is suitable for displaying callendar invitations in mutt. |
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# |
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# Add this to your to your .mailcap: |
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# text/calendar; /<pathto>/calview.rb '%s'; copiousoutput |
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# |
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# Created by Geir Isene <g@isene.com> in 2020 and released into Public Domain. |
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class String |
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def colorize(color_code) # This is for general terminal output - doesn't work inside mutt |
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"\e[#{color_code}m#{self}\e[0m" |
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end |
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def red |
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colorize(31) |
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end |
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def green |
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colorize(32) |
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end |
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def yellow |
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colorize(33) |
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end |
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def blue |
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colorize(34) |
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end |
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end |
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vcal = ARGF.read |
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# Get dates and times |
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if vcal.match( /^DTSTART;TZID=/ ) |
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sdate = vcal[ /^DTSTART;TZID=.*:(.*)T/, 1 ].sub( /(\d\d\d\d)(\d\d)(\d\d)/, '\1-\2-\3') |
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edate = vcal[ /^DTEND;TZID=.*:(.*)T/, 1 ].sub( /(\d\d\d\d)(\d\d)(\d\d)/, '\1-\2-\3') |
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stime = vcal[ /^DTSTART;TZID=.*T(\d\d\d\d)/, 1 ].sub( /(\d\d)(\d\d)/, '\1:\2') |
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etime = vcal[ /^DTEND;TZID=.*T(\d\d\d\d)/, 1 ].sub( /(\d\d)(\d\d)/, '\1:\2') |
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elsif vcal.match( /DTSTART;VALUE=DATE:/ ) |
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sdate = vcal[ /^DTSTART;VALUE=DATE:(.*)/, 1 ].sub( /(\d\d\d\d)(\d\d)(\d\d)/, '\1-\2-\3') |
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edate = vcal[ /^DTEND;VALUE=DATE:(.*)/, 1 ].sub( /(\d\d\d\d)(\d\d)(\d\d)/, '\1-\2-\3') |
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stime = vcal[ /^DTSTART.*T(\d\d\d\d)/, 1 ].sub( /(\d\d)(\d\d)/, '\1:\2') |
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begin |
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etime = vcal[ /^DTEND.*T(\d\d\d\d)/, 1 ].sub( /(\d\d)(\d\d)/, '\1:\2') |
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rescue |
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etime = stime |
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end |
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else |
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sdate = vcal[ /^DTSTART:(.*)T/, 1 ].sub( /(\d\d\d\d)(\d\d)(\d\d)/, '\1-\2-\3') |
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edate = vcal[ /^DTEND:(.*)T/, 1 ].sub( /(\d\d\d\d)(\d\d)(\d\d)/, '\1-\2-\3') |
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stime = vcal[ /^DTSTART.*T(\d\d\d\d)/, 1 ].sub( /(\d\d)(\d\d)/, '\1:\2') |
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etime = vcal[ /^DTEND.*T(\d\d\d\d)/, 1 ].sub( /(\d\d)(\d\d)/, '\1:\2') |
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end |
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# Get organizer |
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if vcal.match( /^ORGANIZER;CN=/ ) |
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org = vcal[ /^ORGANIZER;CN=(.*)/, 1 ].sub( /:mailto:/i, ' <') + ">" |
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else |
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org = vcal[ /^ORGANIZER:(.*)/, 1 ].sub( /MAILTO:/i, ' <') + ">" |
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end |
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# Get description |
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if vcal.match( /^DESCRIPTION;.*?:(.*)^UID/m ) |
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desc = vcal[ /^DESCRIPTION;.*?:(.*)^UID/m, 1 ].gsub( /\n /, '' ).gsub( /\\n/, "\n" ).gsub( /\n\n+/, "\n" ).gsub( / \| /, "\n" ).sub( /^\n/, '' ) |
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else |
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begin |
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desc = vcal[ /^DESCRIPTION:(.*)^SUMMARY/m, 1 ].gsub( /\n /, '' ).gsub( /\\n/, "\n" ).gsub( /\n\n+/, "\n" ).gsub( / \| /, "\n" ).sub( /^\n/, '' ) |
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rescue |
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desc = "" |
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end |
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end |
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sdate == edate ? dates = sdate : dates = sdate + " - " + edate |
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stime == etime ? times = stime : times = stime + " - " + etime |
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# Get participants |
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part = vcal.scan( /^ATTENDEE.*CN=([\s\S]*?@.*)\n/ ).join('%').gsub( /\n /, '').gsub( /%/, ">\n " ).gsub( /:mailto:/i, " <" ) |
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part = " " + part + ">" if part != "" |
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# Get summary and description |
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sum = vcal[ /^SUMMARY;.*:(.*)/, 1 ] |
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sum = vcal[ /^SUMMARY:(.*)/, 1 ] if sum == nil |
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# Print the result in a tidy fashion |
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puts "WHAT: " + (sum).yellow |
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puts "WHEN: " + (dates + ", " + times).green |
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puts "" |
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puts "ORGANIZER: " + org |
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puts "PARTICIPANTS:", part |
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puts "" |
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puts "DESCRIPTION:", desc |
