| 1 | ## our_shell: ysh
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| 2 | ## oils_failures_allowed: 3
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| 3 |
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| 4 | #### JSON func on top of proc
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| 5 |
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| 6 | proc myadd {
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| 7 | json read (&args)
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| 8 |
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| 9 | # convenient!
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| 10 | redir >&2 {
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| 11 | = args
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| 12 | }
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| 13 |
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| 14 | json write (args[0] + args[1])
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| 15 | }
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| 16 |
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| 17 | echo '[1, 2]' | myadd | json read (&result)
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| 18 |
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| 19 | # TODO:
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| 20 | # Rewrite this as:
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| 21 | #
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| 22 | # var result = myadd(1,2)
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| 23 | #
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| 24 | # Is that possible? I think functions can live in their own namespace?
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| 25 | # Or you can have expr.Func() with all the metadata?
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| 26 | # Problem with 'source mytool.hay' is that it can define funcs ANYWHERE
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| 27 | # you might need a namespace like extern::mytool::myfunc()
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| 28 |
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| 29 | echo "result = $result"
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| 30 |
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| 31 | ## STDOUT:
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| 32 | TODO
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| 33 | result = 3
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| 34 | ## END
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| 35 |
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| 36 | #### QTT func on top of proc
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| 37 |
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| 38 | proc myadd {
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| 39 |
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| 40 | # I thought this was 'wok'
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| 41 | qtt read-rows {
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| 42 | if (_index === 0) {
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| 43 | # could write header first here
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| 44 | write --sep $TAB -- $_schema_str 'result:Int'
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| 45 |
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| 46 | # _schema is the raw schema
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| 47 | }
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| 48 | # or use BEGIN and 'when', like awk-style
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| 49 |
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| 50 | const result = _row->x + _row->y
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| 51 | write --sep $TAB -- $_row_str $result
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| 52 | }
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| 53 | }
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| 54 |
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| 55 | qtt tabify '''
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| 56 | x:Int y:Int
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| 57 | 1 2
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| 58 | 3 4
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| 59 | ''' | myadd | qtt read-cols result
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| 60 |
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| 61 | echo "result = $result"
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| 62 |
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| 63 | ## STDOUT:
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| 64 | ## END
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| 65 |
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| 66 | #### QTT func on top of wok
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| 67 |
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| 68 | wok foo {
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| 69 | BEGIN {
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| 70 | write --sep $TAB -- $_schema_str' result:Int'
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| 71 | }
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| 72 |
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| 73 | # for all rows. Could be 'each' or 'row'
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| 74 | when {
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| 75 | const result = _row->x + _row->y
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| 76 | write --sep $TAB -- $_row_str $result
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| 77 | }
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| 78 | }
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| 79 |
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| 80 | ## STDOUT:
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| 81 | ## END
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| 82 |
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| 83 |
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| 84 | # Notes:
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| 85 | # - consider JSON-RPC
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| 86 | # - consider multiple return values
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