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Changes On Branch markdown-header-ids
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Changes On Branch markdown-header-ids

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Changes In Branch markdown-header-ids Excluding Merge-Ins

This is equivalent to a diff from b0188ce122 to a190fae4a2

2026-01-13
19:52
Tag labels in Markdown with IDs that are compatible with GitHub. ... (check-in: f9ead7530c user: drh tags: trunk)
19:51
Update the change log. ... (Closed-Leaf check-in: a190fae4a2 user: drh tags: markdown-header-ids)
19:50
A more precise implementation of "slugify". ... (check-in: 8c9810e693 user: drh tags: markdown-header-ids)
2026-01-12
19:51
Avoid unsigned integer overflow in the delta_apply() function when handed a maliciously malformed input. ... (check-in: e417a5070b user: drh tags: trunk)
18:55
Attempt to add IDs to headers in markdown, the same way that GitHub does. Needs additional testing to confirm that unusual characters in headers are handled reasonably. ... (check-in: 21cbb8c467 user: drh tags: markdown-header-ids)
2026-01-11
17:04
Modify the accordion panel style to hide only vertical overflow and keep the box shadows of selected and current timeline entries visible in the context section of /info pages. Set the CSS property to `clip' instead of `hidden' to disallow any vertical scrolling (for example, by tabbing through hyperlinks), although this is probably not relevant for accordion panels. ... (check-in: b0188ce122 user: florian tags: trunk)
2026-01-10
11:52
Do not try to use "notepad" as a text editor on non-windows systems. ... (check-in: 9b263d87c1 user: drh tags: trunk)

Changes to src/markdown_html.c.
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static void html_header(
  struct Blob *ob,
  struct Blob *text,
  int level,
  void *opaque
){
  struct Blob *title = ((MarkdownToHtml*)opaque)->output_title;
  char *z = 0;
  int i,j;
  /* The first header at the beginning of a text is considered as
   * a title and not output. */
  if( blob_size(ob)<=PROLOG_SIZE && title!=0 && blob_size(title)==0 ){
    blob_appendb(title, text);
    return;
  }
  INTER_BLOCK(ob);
  z = fossil_strdup(blob_buffer(text));
  if( z==0 ){
    j = 0;
  }else{
    /*
    ** The GitHub "slugify" algorithm converts the text of a markdown header
    ** into a ID for that header.  The algorithm is:
    **
    **   1.  ASCII alphanumerics -> convert to lower case
    **   2.  Spaces, hyphens, underscores -> convert to '-'
    **   3.  Non-ASCII -> preserve as-is
    **   4.  Other punctuation -> remove
    **   5.  Multiple consecutive dashes -> collapse to one
    **   6.  Leading and trailing dashes -> remove
    **   7.  Markup <...> and &...; -> remove
    **
    ** This implementation does the conversion in-place.
    */
    for(i=j=0; z[i]; i++){
      if( fossil_isalnum(z[i]) ){
        z[j++] = fossil_tolower(z[i]);
      }else if( fossil_isspace(z[i]) || z[i]=='-' || z[i]=='_' ){
        if( j>0 && z[j-1]!='-' ) z[j++] = '-';
      }else if( z[i]=='<' ){
        do{ i++; }while( z[i]!=0 && z[i]!='>' );
      }else if( z[i]=='&' ){
        do{ i++; }while( z[i]!=0 && z[i]!=';' );
      }else if( (z[i]&0x80)!=0 ){
        z[j++] = z[i];
      }
    }
    if( j>0 && z[j-1]=='-' ) j--;
    z[j] = 0;
  }
  if( j>0 ){
    blob_appendf(ob, "<h%d id=\"%s\">", level, z);
  }else{
  blob_appendf(ob, "<h%d>", level);
    blob_appendf(ob, "<h%d>", level);
  }
  blob_appendb(ob, text);
  blob_appendf(ob, "</h%d>", level);
  fossil_free(z);
}

static void html_hrule(struct Blob *ob, void *opaque){
  INTER_BLOCK(ob);
  blob_append_literal(ob, "<hr>\n");
}
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Changes to www/changes.wiki.
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       <li> New setting [/help/timeline-mark-leaves|timeline-mark-leaves] controls
            whether or not leaf check-ins are marked in the timeline.
       <li> "No-graph" timelines (using the "ng" query parameter) now show
            branch colors and bare check-in circles on the left.  The check-in
            circles appear, but no lines connecting them.
            ([/timeline?ng|example]).
       </ol>
  <li> Labels in Markdown now have IDs generated using the GitHub "slugify"
       algorithm.
  <li> The [/help/timeline|timeline command] is enhanced with the new options
       "<tt>-u|--for-user</tt>" to filter by user, and "<tt>-r</tt>" to display
       entries in chronological order.
  <li> The [/help/open|open command]'s new "<tt>--reopen REPOFILE</tt>" flag
       can be used to fix a checkout after moving its repository file.
  <li> Update internal Unicode character tables, used in regular expression
       handling, from version 13 to 17.
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