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Is it possible for markdown export to link to other files?

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I exported a notebook to markdown (which is great), but I found that the files don't have links to other files like they were in Siyuan.

So, is there anyway to make markdown exports have links to other files?

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    Is it possible for markdown export to link to other files?

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    • adham • • 1
      Author

      I was able to do it (for documents only, not blocks, as I don't know how to find out if the link is of a block or a document, and I don't want to mutate the linked documents anyway).

      Here's the Python script:

      import os
import re
import requests

# Replace 'YOUR_API_ENDPOINT' with the actual Siyuan API endpoint
SIYUAN_API_ENDPOINT = "http://localhost:6806"


# Function to make a SQL query to Siyuan API
def query_block_details(block_id):
    query = {"stmt": f"SELECT * FROM blocks WHERE id='{block_id}'"}
    response = requests.post(f"{SIYUAN_API_ENDPOINT}/api/query/sql", json=query)
    return response.json()


# Function to process each markdown file
def process_markdown_file(file_path):
    with open(file_path, "r", encoding="utf-8") as file:
        content = file.read()

        # Use regex to find instances of [Anchor text](siyuan://blocks/block-id)
        matches = re.findall(r"\[.*?\]\(siyuan://blocks/(.*?)\)", content)

        for block_id in matches:
            # Query Siyuan API to get block details
            result = query_block_details(block_id)

            # Assumes ref is of a document, not a block
            if result:
                hpath_value = result["data"][0].get("hpath")

                # Replace the siyuan://blocks/block-id with hpath_value.md
                new_link = f"({hpath_value}.md)"

                # Replace the old link in the content
                content = content.replace(f"(siyuan://blocks/{block_id})", new_link)

    # Write the updated content back to the file
    with open(file_path, "w", encoding="utf-8") as file:
        file.write(content)


def process_markdown_directory(directory_path):
    for root, _, files in os.walk(directory_path):
        for file_name in files:
            if file_name.endswith(".md"):
                file_path = os.path.join(root, file_name)
                process_markdown_file(file_path)


# Replace 'YOUR_MARKDOWN_DIRECTORY_PATH' with the actual path to your exported markdown files
markdown_directory_path = "YOUR_MARKDOWN_DIRECTORY_PATH"

# Process each markdown file in the specified path
process_markdown_directory(markdown_directory_path)
    • MiscReply
    • Siysuy •

      I appreciate your resonse, but it is not only for complete batch export for users to turn away from siyuan, but rather for collaborative reasons and to publish notes. Users of Siyuan can collaborate and share specific notes.

      I just want a guide on how to use anchor hash. How would I proceed after I used the feature after export, so post anchor hash. I do not quite understand what to do with the new file after export.

      1 Reply
    • 88250 •
      MOD

      The reason why this function is placed at the notebook level is because some users no longer want to use SiYuan and need complete batch export, so support for this function is not considered at the document level.

      I'm not sure if the span tag still exists after pandoc converts the HTML, but I'm sure anchor jumps can be used and you can write HTML tests in the browser.

      1 Reply
    • sagar •
      VIP Warrior

      @adham Wow 😍 You are a master programmer indeed! I was still trying to figure out how to use Python to open all .md files in a directory, by copy/pasting code from Stackoverflow 😄 This solution is exactly what I meant.

      I do believe it can be extended to include references to any arbitrary block, not just a document block. You did say that you don't want to mutate the linked documents, but I am just laying out the approach in case any other master programmers want to try it 😄. You wrote,

      I don't know how to find out if the link is of a block or a document,

      I see a few different possible checks for this

      • Look at the 'type' field in the response of the SQL query. If it is a document block, the type value will be 'd'. Other type values are given in the documentation at /Please Start Here/Advanced search/Type filtering
      • I believe that if the block is of type document, then the 'root_id' will be the same as 'id'. See the documentation of the SQL table fields at /Please Start Here/Advanced search/Database table

      So one or both of the above checks can be used to determine if the block is of type 'document' or something else.

      If the block is of type something else, then the way to link to it would be

      1. Open the target document that contains the block (i.e. the hpath)
      2. Search for the occurrence of the content in the 'markdown' field of the SQL query response. This will place the "cursor" inside the document to the start of the paragraph (or whatever other content) the block points to
      3. At this cursor position, insert an HTML anchor text like: <a name="block-id"></a>
      4. Then, update the siyuan://blocks/block-id part of the link to hpath_value.md#block-id

      This approach enables having links in the markdown files to any other markdown files or parts inside markdown files.

      @adham Thank you once again for your example code 🙏

      3 Operate
      sagar updated this reply at 2023-12-02 01:22:47
      sagar updated this reply at 2023-12-02 01:21:03
      sagar updated this reply at 2023-12-02 01:18:06
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