arranging-text-in-vertical-columns.rex

Pipelines v2.1

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 **** Top of file ****
 1
 2 /* The following pipeline reads the file: winston.txt; splits each record into individual words
 3 and selects the first 150. Using this list of 150 words, it builds an output which consists of
 4 three equal columns of 50 words, 30 characters wide. */
 5
 6 Address Rxpipe
 7
 8 'pipe (priority 2 endchar ?)',
 9 '< &installdrive:\&installpath\examples\input\winston.txt',
 10 '| split', /* Split each record into individual words. */
 11 '| strip', /* Trim whitespace. */
 12 '| locate', /* Discard blank records. */
 13 '| take 150', /* Select only the first 150 words. */
 14 '| specs recno 1 1-* nw',  /* Insert record number in column 1. */
 15 '| a: drop 50', /* Route away the first 50 records. */
 16 '| b: drop 50', /* Route away the next 50 records. */
 17 '| c: specs select 1 1-* 1', /* Read a record from each of the three input streams.. */
 18 'select 2 1-* 30', /* ..and build a single output record.. */
 19 'select 0 1-* 60', /* ..comprising three columns. */
 20 '| cons', /* Display on the console. */
 21 '?',
 22 'a:',
 23 '| elastic', /* Buffer as necessary, the first 50 records. */
 24 '| c:', /* Route back to main pipeline. */
 25 '?',
 26 'b:',
 27 '| elastic', /* Buffer as necessary, the next 50 records. */
 28 '| c:' /* Route back to main pipeline. */
 29
 30 Say 'Hit Enter to close..'
 31 Parse Pull
 32
 33 Exit 0
 **** End of file ****
 

Console output

 
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 1 1 It 51 from  101 about
 2 2 was 52 entering 102 forty-five,
 3 3 a 53 along 103 with
 4 4 bright 54 with  104 a
 5 5 cold 55 him. 105 heavy
 6 6 day 56 The 106 black
 7 7 in 57 hallway 107 moustache
 8 8 April, 58 smelt 108 and
 9 9 and 59 of 109 ruggedly
 10 10 the 60 boiled 110 handsome
 11  11 clocks 61 cabbage 111 features.
 12 12 were 62 and 112 Winston
 13 13 striking 63 old 113 made
 14 14 thirteen. 64 rag 114 for
 15 15 Winston 65 mats. 115 the
 16 16 Smith, 66 At 116 stairs.
 17 17 his  67 one 117 It
 18 18 chin 68 end 118 was
 19 19 nuzzled 69 of 119 no
 20 20 into 70 it  120 use
 21 21 his 71 a 121 trying
 22 22 breast 72 coloured 122 the
 23 23 in 73 poster,  123 lift.
 24 24 an 74 too 124 Even
 25 25 effort 75 large 125 at
 26 26 to 76 for 126 the
 27 27 escape 77 indoor 127 best
 28 28 the 78 display, 128 of
 29 29 vile 79 has 129 times
 30 30 wind, 80 been 130 it
 31 31 slipped 81 tacked 131 was
 32 32 quickly 82 to 132 seldom
 33 33 through  83 the 133 working,
 34 34 the 84 wall. 134 and
 35 35 glass 85 It 135 at
 36 36 doors 86 depicted 136 present
 37 37 of 87 simply 137 the
 38 38 Victory 88 an 138 electric
 39 39 Mansions, 89 enormous  139 current
 40 40 though 90 face, 140 was
 41 41 not 91 more 141 cut
 42 42 quickly 92 than 142 off
 43 43 enough 93 a 143 during
 44 44 to 94 metre 144 daylight
 45 45 prevent 95 wide: 145 hours.
 46 46 a 96 the 146 It
 47 47 swirl 97 face 147 was
 48 48 of 98 of 148 part
 49 49 gritty 99 a 149 of
 50 50 dust 100 man 150 the
 51 Hit Enter to close..