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Overview
| Comment: | Proposed new design for the forum. Individual posts are stored as ordinary artifacts and thus participate in sync just like any other artifact. There is a new artifact type used to describe forum posts. This check-in defines the format of the new artifact type. Follow-up check-ins on this thread will attempt to flesh-out the idea in code. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | forum-v2 |
| Files: | files | file ages | folders |
| SHA3-256: |
15fa605318fc0e4e8a6de1b58500770e |
| User & Date: | drh 2018-07-19 19:43:57 |
Context
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2018-07-19
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| 21:31 | Enhance the manifest parser to support parsing of Forum posts artifacts. At the same time, simplify the artifact syntax error detection logic using tables rather than straight code. (check-in: e893e9d0 user: drh tags: forum-v2) | |
| 19:43 | Proposed new design for the forum. Individual posts are stored as ordinary artifacts and thus participate in sync just like any other artifact. There is a new artifact type used to describe forum posts. This check-in defines the format of the new artifact type. Follow-up check-ins on this thread will attempt to flesh-out the idea in code. (check-in: 15fa6053 user: drh tags: forum-v2) | |
| 18:54 | Fix minor comment typo. No code changes. (check-in: ac6657e2 user: drh tags: trunk) | |
Changes
Changes to www/fileformat.wiki.
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<li> [#manifest | Manifests] </li> <li> [#cluster | Clusters] </li> <li> [#ctrl | Control Artifacts] </li> <li> [#wikichng | Wiki Pages] </li> <li> [#tktchng | Ticket Changes] </li> <li> [#attachment | Attachments] </li> <li> [#event | TechNotes] </li> </ul> These seven structural artifact types are described in subsections below. Structural artifacts are ASCII text. The artifact may be PGP clearsigned. After removal of the PGP clearsign header and suffix (if any) a structural artifact consists of one or more "cards" separated by a single newline (ASCII: 0x0a) character. Each card begins with a single character "card type". Zero or more arguments may follow the card type. All arguments are separated from each other ................................................................................ A single W card provides wiki text for the document associated with the technote. The format of the W card is exactly the same as for a [#wikichng | wiki artifact]. The Z card is the required checksum over the rest of the artifact. <a name="summary"></a> <h2>3.0 Card Summary</h2> The following table summarizes the various kinds of cards that appear on Fossil artifacts. A blank entry means that combination of card and artifact is not legal. A number or range of numbers indicates the number ................................................................................ of times a card may (or must) appear in the corresponding artifact type. e.g. a value of 1 indicates a required unique card and 1+ indicates that one or more such cards are required. <table border=1 width="100%"> <tr> <th rowspan=2 valign=bottom>Card Format</th> <th colspan=7>Used By</th> </tr> <tr> <th>Manifest</th> <th>Cluster</th> <th>Control</th> <th>Wiki</th> <th>Ticket</th> <th>Attachment</th> <th>Technote</th> </tr> <tr> <td><b>A</b> <i>filename</i> <i>target</i> ?<i>source</i>?</td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td align=center><b>1</b></td> <td> </td> </tr> <tr> <td><b>B</b> <i>baseline</i></td> <td align=center><b>0-1*</b></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr><td> </td><td colspan='7'>* = Required for delta manifests</td></tr> <tr> <td><b>C</b> <i>comment-text</i></td> <td align=center><b>1</b></td> <td> </td> <td> </td> <td> </td> <td> </td> <td align=center><b>0-1</b></td> <td align=center><b>0-1</b></td> </tr> <tr> <td><b>D</b> <i>date-time-stamp</i></td> <td align=center><b>1</b></td> <td> </td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> </tr> <tr> ................................................................................ <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td align=center><b>1</b></td> </tr> <tr> <td><b>F</b> <i>filename</i> ?<i>uuid</i>? ?<i>permissions</i>? ?<i>oldname</i>?</td> <td align=center><b>0+</b></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td><b>J</b> <i>name</i> ?<i>value</i>?</td> <td> </td> <td> </td> <td> </td> <td> </td> <td align=center><b>1+</b></td> <td> </td> <td> </td> </tr> <tr> <td><b>K</b> <i>ticket-uuid</i></td> <td> </td> <td> </td> <td> </td> <td> </td> <td align=center><b>1</b></td> <td> </td> <td> </td> </tr> <tr> <td><b>L</b> <i>wiki-title</i></td> <td> </td> <td> </td> <td> </td> <td align=center><b>1</b></td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td><b>M</b> <i>uuid</i></td> <td> </td> <td align=center><b>1+</b></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr> ................................................................................ <td align=center><b>0-1</b></td> <td> </td> <td> </td> <td align=center><b>0-1</b></td> <td> </td> <td align=center><b>0-1</b></td> <td align=center><b>0-1</b></td> </tr> <tr> <td><b>P</b> <i>uuid ...</i></td> <td align=center><b>0-1</b></td> <td> </td> <td> </td> <td align=center><b>0-1</b></td> <td> </td> <td> </td> <td align=center><b>0-1</b></td> </tr> <tr> <td><b>Q</b> (<b>+</b>|<b>-</b>)<i>uuid</i> ?<i>uuid</i>?</td> <td align=center><b>0+</b></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> ................................................................................ <td align=center><b>0-1</b></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <tr> <td><b>T</b> (<b>+</b>|<b>*</b>|<b>-</b>)<i>tagname</i> <i>uuid</i> ?<i>value</i>?</td> <td align=center><b>0+</b></td> <td> </td> <td align=center><b>1+</b></td> <td> </td> <td> </td> <td> </td> <td align=center><b>0+</b></td> </tr> <tr> <td><b>U</b> <i>username</i></td> <td align=center><b>1</b></td> <td> </td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> <td align=center><b>0-1</b></td> <td align=center><b>0-1</b></td> </tr> <tr> <td><b>W</b> <i>size</i> <b>\n</b> <i>text</i> <b>\n</b></td> <td> </td> <td> </td> <td> </td> <td align=center><b>1</b></td> <td> </td> <td> </td> <td align=center><b>1</b></td> </tr> <tr> <td><b>Z</b> <i>md5sum</i></td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> |
> | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | > > | > < > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > |
69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 ... 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 ... 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 ... 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 ... 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 ... 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 |
<li> [#manifest | Manifests] </li> <li> [#cluster | Clusters] </li> <li> [#ctrl | Control Artifacts] </li> <li> [#wikichng | Wiki Pages] </li> <li> [#tktchng | Ticket Changes] </li> <li> [#attachment | Attachments] </li> <li> [#event | TechNotes] </li> <li> [#forum | Forum Posts] </li> </ul> These eight structural artifact types are described in subsections below. Structural artifacts are ASCII text. The artifact may be PGP clearsigned. After removal of the PGP clearsign header and suffix (if any) a structural artifact consists of one or more "cards" separated by a single newline (ASCII: 0x0a) character. Each card begins with a single character "card type". Zero or more arguments may follow the card type. All arguments are separated from each other ................................................................................ A single W card provides wiki text for the document associated with the technote. The format of the W card is exactly the same as for a [#wikichng | wiki artifact]. The Z card is the required checksum over the rest of the artifact. <a name="forum"></a> <h3>2.8 Forum Posts</h3> Forum posts are intended as a mechanism for users and developers to discuss a project. Forum mosts are like messages on a mailing list. The following cards are allowed on an forum post artifact: <blockquote> <b>D</b> <i>time-and-date-stamp</i><br /> <b>G</b> <i>thread-root</i><br /> <b>H</b> <i>thread-title</i><br /> <b>I</b> <i>in-reply-to</i><br /> <b>N</b> <i>mimetype</i><br /> <b>P</b> <i>parent-artifact-id</i><br /> <b>U</b> <i>user-name</i><br /> <b>W</b> <i>size</i> <b>\n</b> <i>text</i> <b>\n</b><br /> <b>Z</b> <i>checksum</i> </blockquote> Every forum post must have either one I card and one G card or one H card. Forum posts are organized into topic threads. The initial post for a thread (the root post) has an H card giving the title or subject for that thread. The argument to the H card is a string in the same format as a comment string in a C card. All follow-up posts have an I card that indicates which prior post in the same thread the current forum post is replying to, and a G card specifying the root post for the entire thread. The argument to G and I cards is the artifact hash for the prior forum post to which the card refers. In theory, it is sufficient for follow-up posts to have only an I card, since the G card value could be computed by following a chain of I cards. However, the G card is required in order to associate the artifact with a forum thread in the case where an intermediate artifact in the I card chain is shunned or otherwise becomes unreadable. A single D card is required to give the date and time when the forum post was created. The optional N card specifies the mimetype of the text of the technote that is contained in the W card. If the N card is omitted, then the W card text mimetype is assumed to be text/x-fossil, which is the Fossil wiki format. The optional P card specifies a prior forum post for which this forum post is an edit. For display purposes, only the child post is shown, thought the historical post is retained as a record. If P cards are used and there exist multiple versions of the same forum post, then I cards for other artifacts refer to whichever version of the post was current at the time the reply was made, but G cards refer to the initial, unedited root post for the thread. Thus, following the chain of I cards back to the root of the thread may land on a different post than the one given in the G card. However, following the chain of I cards back to the thread root, then following P cards back to the initial version of the thread root must give the same artifact as is provided by the G card, otherwise the artifact containing the G card is considered invalid and should be ignored. In general, P cards may contain multiple arguments, indicating a merge. But since forum posts cannot be merged, the P card of a forum post may only contain a single argument. The U card gives name of the user who entered the forum post. A single W card provides wiki text for the forum post. The format of the W card is exactly the same as for a [#wikichng | wiki artifact]. The Z card is the required checksum over the rest of the artifact. <a name="summary"></a> <h2>3.0 Card Summary</h2> The following table summarizes the various kinds of cards that appear on Fossil artifacts. A blank entry means that combination of card and artifact is not legal. A number or range of numbers indicates the number ................................................................................ of times a card may (or must) appear in the corresponding artifact type. e.g. a value of 1 indicates a required unique card and 1+ indicates that one or more such cards are required. <table border=1 width="100%"> <tr> <th rowspan=2 valign=bottom>Card Format</th> <th colspan=8>Used By</th> </tr> <tr> <th>Manifest</th> <th>Cluster</th> <th>Control</th> <th>Wiki</th> <th>Ticket</th> <th>Attachment</th> <th>Technote</th> <th>Forum</th> </tr> <tr> <td><b>A</b> <i>filename</i> <i>target</i> ?<i>source</i>?</td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td align=center><b>1</b></td> <td> </td> <td> </td> </tr> <tr> <td><b>B</b> <i>baseline</i></td> <td align=center><b>0-1</b></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td><b>C</b> <i>comment-text</i></td> <td align=center><b>1</b></td> <td> </td> <td> </td> <td> </td> <td> </td> <td align=center><b>0-1</b></td> <td align=center><b>0-1</b></td> <td> </td> </tr> <tr> <td><b>D</b> <i>date-time-stamp</i></td> <td align=center><b>1</b></td> <td> </td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> </tr> <tr> ................................................................................ <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td align=center><b>1</b></td> <td> </td> </tr> <tr> <td><b>F</b> <i>filename</i> ?<i>uuid</i>? ?<i>permissions</i>? ?<i>oldname</i>?</td> <td align=center><b>0+</b></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td><b>H</b> <i>thread-title</i></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td align=center><b>0-1</b></td> </tr> <tr> <td><b>I</b> <i>in-reply-to</i></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td align=center><b>0-1</b></td> </tr> <tr> <td><b>J</b> <i>name</i> ?<i>value</i>?</td> <td> </td> <td> </td> <td> </td> <td> </td> <td align=center><b>1+</b></td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td><b>K</b> <i>ticket-uuid</i></td> <td> </td> <td> </td> <td> </td> <td> </td> <td align=center><b>1</b></td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td><b>L</b> <i>wiki-title</i></td> <td> </td> <td> </td> <td> </td> <td align=center><b>1</b></td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td><b>M</b> <i>uuid</i></td> <td> </td> <td align=center><b>1+</b></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr> ................................................................................ <td align=center><b>0-1</b></td> <td> </td> <td> </td> <td align=center><b>0-1</b></td> <td> </td> <td align=center><b>0-1</b></td> <td align=center><b>0-1</b></td> <td align=center><b>0-1</b></td> </tr> <tr> <td><b>P</b> <i>uuid ...</i></td> <td align=center><b>0-1</b></td> <td> </td> <td> </td> <td align=center><b>0-1</b></td> <td> </td> <td> </td> <td align=center><b>0-1</b></td> <td align=center><b>0-1</b></td> </tr> <tr> <td><b>Q</b> (<b>+</b>|<b>-</b>)<i>uuid</i> ?<i>uuid</i>?</td> <td align=center><b>0+</b></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> ................................................................................ <td align=center><b>0-1</b></td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <tr> <td><b>T</b> (<b>+</b>|<b>*</b>|<b>-</b>)<i>tagname</i> <i>uuid</i> ?<i>value</i>?</td> <td align=center><b>0+</b></td> <td> </td> <td align=center><b>1+</b></td> <td> </td> <td> </td> <td> </td> <td align=center><b>0+</b></td> <td> </td> </tr> <tr> <td><b>U</b> <i>username</i></td> <td align=center><b>1</b></td> <td> </td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> <td align=center><b>0-1</b></td> <td align=center><b>0-1</b></td> <td align=center><b>1</b></td> </tr> <tr> <td><b>W</b> <i>size</i> <b>\n</b> <i>text</i> <b>\n</b></td> <td> </td> <td> </td> <td> </td> <td align=center><b>1</b></td> <td> </td> <td> </td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> </tr> <tr> <td><b>Z</b> <i>md5sum</i></td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> <td align=center><b>1</b></td> |