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Overview
Comment:Do not duplicate markdown titles in the title of the page and in the body of the document.
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SHA1: d407c3842116e163fce36055c3998e08731fc6f9
User & Date: drh 2015-12-03 15:19:39.583
Context
2015-12-03
15:41
Improved cross-linking of clusters. ... (check-in: 24606598 user: drh tags: trunk)
15:19
Do not duplicate markdown titles in the title of the page and in the body of the document. ... (check-in: d407c384 user: drh tags: trunk)
15:07
When markdown begins with a <h1> HTML element, consider the content of that element to be the title of the document. ... (check-in: cc7f4df4 user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/markdown_html.c.
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  INTER_BLOCK(ob);
  BLOB_APPEND_LITERAL(ob, "</div>\n");
}

static void html_raw_block(struct Blob *ob, struct Blob *text, void *opaque){
  char *data = blob_buffer(text);
  size_t size = blob_size(text);

  while( size>0 && fossil_isspace(data[0]) ){ data++; size--; }
  while( size>0 && fossil_isspace(data[size-1]) ){ size--; }
  /* If the first raw block is an <h1> element, then use it as the title. */
  if( blob_size(ob)<=PROLOG_SIZE
   && size>9

   && sqlite3_strnicmp("<h1",data,3)==0
   && sqlite3_strnicmp("</h1>", &data[size-5],5)==0
  ){
    Blob *title = (Blob*)opaque;
    int nTag = htmlTagLength(data);
    blob_append(title, data+nTag, size - nTag - 5);

  }
  INTER_BLOCK(ob);
  blob_append(ob, data, size);
  BLOB_APPEND_LITERAL(ob, "\n");
}

static void html_blockcode(struct Blob *ob, struct Blob *text, void *opaque){







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  INTER_BLOCK(ob);
  BLOB_APPEND_LITERAL(ob, "</div>\n");
}

static void html_raw_block(struct Blob *ob, struct Blob *text, void *opaque){
  char *data = blob_buffer(text);
  size_t size = blob_size(text);
  Blob *title = (Blob*)opaque;
  while( size>0 && fossil_isspace(data[0]) ){ data++; size--; }
  while( size>0 && fossil_isspace(data[size-1]) ){ size--; }
  /* If the first raw block is an <h1> element, then use it as the title. */
  if( blob_size(ob)<=PROLOG_SIZE
   && size>9
   && title!=0
   && sqlite3_strnicmp("<h1",data,3)==0
   && sqlite3_strnicmp("</h1>", &data[size-5],5)==0
  ){

    int nTag = htmlTagLength(data);
    blob_append(title, data+nTag, size - nTag - 5);
    return;
  }
  INTER_BLOCK(ob);
  blob_append(ob, data, size);
  BLOB_APPEND_LITERAL(ob, "\n");
}

static void html_blockcode(struct Blob *ob, struct Blob *text, void *opaque){
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  struct Blob *text,
  int level,
  void *opaque
){
  struct Blob *title = opaque;
  /* The first header at the beginning of a text is considered as
   * a title and not output. */
  if( blob_size(ob)<=PROLOG_SIZE && blob_size(title)==0 ){
    BLOB_APPEND_BLOB(title, text);

  }
  INTER_BLOCK(ob);
  blob_appendf(ob, "<h%d>", level);
  BLOB_APPEND_BLOB(ob, text);
  blob_appendf(ob, "</h%d>", level);
}








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  struct Blob *text,
  int level,
  void *opaque
){
  struct Blob *title = opaque;
  /* 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_APPEND_BLOB(title, text);
    return;
  }
  INTER_BLOCK(ob);
  blob_appendf(ob, "<h%d>", level);
  BLOB_APPEND_BLOB(ob, text);
  blob_appendf(ob, "</h%d>", level);
}

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}


static void html_normal_text(struct Blob *ob, struct Blob *text, void *opaque){
  html_escape(ob, blob_buffer(text), blob_size(text));
}







void markdown_to_html(
  struct Blob *input_markdown,
  struct Blob *output_title,
  struct Blob *output_body
){
  struct mkd_renderer html_renderer = {
    /* prolog and epilog */
    html_prolog,
    html_epilog,

    /* block level elements */







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}


static void html_normal_text(struct Blob *ob, struct Blob *text, void *opaque){
  html_escape(ob, blob_buffer(text), blob_size(text));
}

/*
** Convert markdown into HTML.
**
** The document title is placed in output_title if not NULL.  Or if
** output_title is NULL, the document title appears in the body.
*/
void markdown_to_html(
  struct Blob *input_markdown,   /* Markdown content to be rendered */
  struct Blob *output_title,     /* Put title here.  May be NULL */
  struct Blob *output_body       /* Put document body here. */
){
  struct mkd_renderer html_renderer = {
    /* prolog and epilog */
    html_prolog,
    html_epilog,

    /* block level elements */
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    /* misc. parameters */
    64, /* maximum stack */
    "*_", /* emphasis characters */
    0 /* opaque data */
  };
  html_renderer.opaque = output_title;
  blob_reset(output_title);
  blob_reset(output_body);
  markdown(output_body, input_markdown, &html_renderer);
}







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    /* misc. parameters */
    64, /* maximum stack */
    "*_", /* emphasis characters */
    0 /* opaque data */
  };
  html_renderer.opaque = output_title;
  if( output_title ) blob_reset(output_title);
  blob_reset(output_body);
  markdown(output_body, input_markdown, &html_renderer);
}
Changes to src/wiki.c.
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**   text/x-markdown         Markdown
**   anything else...        Plain text
*/
void wiki_render_by_mimetype(Blob *pWiki, const char *zMimetype){
  if( zMimetype==0 || fossil_strcmp(zMimetype, "text/x-fossil-wiki")==0 ){
    wiki_convert(pWiki, 0, 0);
  }else if( fossil_strcmp(zMimetype, "text/x-markdown")==0 ){
    Blob title = BLOB_INITIALIZER;
    Blob tail = BLOB_INITIALIZER;
    markdown_to_html(pWiki, &title, &tail);
#if 0
    if( blob_size(&title)>0 ){
      @ <h1>%s(blob_str(&title))</h1>
    }
#endif
    @ %s(blob_str(&tail))
    blob_reset(&title);
    blob_reset(&tail);
  }else{
    @ <pre>
    @ %h(blob_str(pWiki))
    @ </pre>
  }
}







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**   text/x-markdown         Markdown
**   anything else...        Plain text
*/
void wiki_render_by_mimetype(Blob *pWiki, const char *zMimetype){
  if( zMimetype==0 || fossil_strcmp(zMimetype, "text/x-fossil-wiki")==0 ){
    wiki_convert(pWiki, 0, 0);
  }else if( fossil_strcmp(zMimetype, "text/x-markdown")==0 ){

    Blob tail = BLOB_INITIALIZER;
    markdown_to_html(pWiki, 0, &tail);





    @ %s(blob_str(&tail))

    blob_reset(&tail);
  }else{
    @ <pre>
    @ %h(blob_str(pWiki))
    @ </pre>
  }
}