| 1 | .th PTX VI 10/15/73 |
| 2 | .sh NAME |
| 3 | ptx \*- permuted index |
| 4 | .sh SYNOPSIS |
| 5 | .bd ptx |
| 6 | [ |
| 7 | .bd \*-t |
| 8 | ] |
| 9 | input [ output ] |
| 10 | .sh DESCRIPTION |
| 11 | .it Ptx |
| 12 | generates a permuted index from file |
| 13 | .it input |
| 14 | on file |
| 15 | .it output. |
| 16 | It has three phases: the first does the permutation, generating |
| 17 | one line for each keyword in an input line. |
| 18 | The keyword is rotated to the front. |
| 19 | The permuted file is then |
| 20 | sorted. |
| 21 | Finally the sorted lines are rotated so the keyword |
| 22 | comes at the middle of the page. |
| 23 | .s3 |
| 24 | .it Input |
| 25 | should be edited to remove useless lines. |
| 26 | The following words are suppressed: `a', `an', `and', `as', |
| 27 | `is', `for', `of', `on', `or', `the', `to', `up'. |
| 28 | .s3 |
| 29 | The optional argument |
| 30 | .bd \*-t |
| 31 | causes |
| 32 | .it ptx |
| 33 | to prepare its output for the |
| 34 | phototypesetter. |
| 35 | .s3 |
| 36 | The index for this manual was generated using |
| 37 | .it ptx. |
| 38 | .sh FILES |
| 39 | /bin/sort |