random-ics.awk - ics2txt - convert icalendar .ics file to plain text
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       ---
       random-ics.awk (661B)
       ---
            1 #!/usr/bin/awk -f
            2 
            3 function random(n) {
            4         "exec od -An </dev/urandom" | getline num
            5         return num % n
            6 }
            7 
            8 BEGIN {
            9         data = "exec tr -cd -- '-a-zA-Z0-9\n' </dev/urandom"
           10 
           11         first = 1
           12         while (data | getline) {
           13                 if (random(2) && !first) {
           14                         print(" " $0)
           15                         continue
           16                 }
           17                 first = 0
           18 
           19                 data | getline
           20                 col = random(26) + 1
           21                 out = "X-"substr($0, 1, col)
           22                 $0 = substr($0, col + 1)
           23                 n = random(30)
           24                 for (i = 0; i <= n; i++) {
           25                         col = random(30) + 5
           26                         if (length($0) < col)
           27                                 continue
           28                         eq = random(int(col / 2)) + 1
           29                         out = out ";" substr($0, 1, eq) "=" substr($1, eq + 1, col)
           30                         $0 = substr($0, col + 1)
           31                 }
           32                 out = out $0 ":"
           33                 print(out)
           34         }
           35 
           36         close(cmd)
           37 }