we can now follow links to headings and paragraphs both globally and

within specific notes!

BACKLOG.md

@@ -46,44 +46,28 @@
 
 ## Special links
 
-- like this
+Everything behind a # is a search!
-   - [[2021-11-27#Make it]]
-   - [[2021-11-27# it]]
-   - [[2021-11-27#^4ba88c]]
-     - block references only need to be local to the file
-     - for grepping, it makes sense for them to rather not collide
-     - we could use hex format of current time when creating them
-     - or some hash of the block - plus some time info
 
-- also provide highlighting 
+- [[#some heading]] -- will search for the heading 'some heading' 
-- yank link to this heading
-- yank link to this paragraph
-  - warning: appends ^xxxxxx to the paragraph, if not present
 
-- can we jump to a specific line (col) from telescope?
+- [[some note#some heading]] -- will search for 'some note' in filns and within it the heading 'some heading' 
-- how can we jump to the heading / para in the preview?
-- can we use live_grep or file_finder?
-  - con for live_grep: will find any file with the same heading
-    - --> pressing enter might jump to a wrong default
-  - con for file finder:
-    - maybe not possible to move preview to correct line
-      - better previewer?
-- or shall everything be custom?
-  - only 1 file or a list of files containing the same heading, with the one under the link as default
-  - and a pre-viewer at correct line (cat new or so)
 
-`require('telescope.previewers').vim_buffer_vimgrep()`:
+- [[#^some-para-id]] -- will search for the ^para-id
-A previewer that is used to display a file and jump to the provided line.
+- [[some note#^some-para-id]] -- will search for the ^para-id in the note whose filn matches some note
-It uses the `buffer_previewer` interface. To integrate this one into your
-own picker make sure that the field `path` or `filename` and `lnum` is set
-in each entry. If the latter is not present, it will default to the first
-line. The preferred way of using this previewer is like this
-`require('telescope.config').values.grep_previewer` This will respect user
-configuration and will use `termopen_previewer` in case it's configured
-that way.
 
-Also interesting: termopen_previewer!
+If note is specified and cannot be found, it will be ignored and a global search triggered instead
-`vim.fn.search` to jump to a specific line
 
-> Start typing a link like you would normally. When the note you want is highlighted, press # instead of Enter and you'll see a list of headings in that file. Continue typing or navigate with arrow keys as before, press # again at each subheading you want to add, and Enter to complete the link.
+## Supportive features
+
+- Yank link to heading
+- Yank link to paragraph
+
+### Insert links...?
+Maybe as an extra action: link with heading -> telescope popup for headings
+Maybe as an extra action: link with paragraph -> telescope popup for paragraphs
+
+Global: link to heading: search through all headings
+Global: link to paragraphs: search all paragraphs: maybe overkill
+Global: link to already postfixed paragraphs
+Global: Place paragraph id
 

README.md

@@ -12,6 +12,8 @@ mixing it with a journal, based on [telescope.nvim](https://github.com/nvim-tele
 - following a link to a non-existing note can also create the missing note (optional)
 - find notes **that link back to your notes**
 - find other notes that link to the same note as the link under the cursor
+- support for **links to headings or specific paragraphs** within specific notes or globally (see [link
+  notation](#20-link-notation))
 - calendar support
 - paste images from clipboard
 - toggle [ ] todo status of line
@@ -78,11 +80,12 @@ of being able to edit it.
     * [0.3 Configure your own colors](#03-configure-your-own-colors)
 * [1. Get Help](#1-get-help)
 * [2. Use it](#2-use-it)
-    * [3. Note templates](#3-note-templates)
+    * [2.0 Link notation](#20-link-notation)
-        * [3.1 Template files](#31-template-files)
+    * [2.1 Note templates](#21-note-templates)
-    * [3.2 Using the calendar](#32-using-the-calendar)
+        * [2.1.1 Template files](#211-template-files)
-* [4. Bind it](#4-bind-it)
+    * [2.2 Using the calendar](#22-using-the-calendar)
-* [5. The hardcoded stuff](#5-the-hardcoded-stuff)
+* [3. Bind it](#3-bind-it)
+* [4. The hardcoded stuff](#4-the-hardcoded-stuff)
 
 <!-- vim-markdown-toc -->
 
@@ -296,7 +299,7 @@ or .. **just use telescope**: `:Telescope help_tags` and search for `telekasten`
 
 ## 2. Use it
 
-The plugin defines the following functions.
+The plugin defines the following functions:
 
 - `new_note()` : prompts for title and creates new note by template, then shows it in Telescope
 - `new_templated_note()` : prompts for title and then uses telescope for choosing a template. When a template is
@@ -314,10 +317,12 @@ The plugin defines the following functions.
 - `insert_link()` : select a note by name, via Telescope, and place a `[[link]]` at the current cursor position
   - **note**: 
     - this function accepts a parameter `{i}`. If `true`, it will enter input mode by pressing the 'A' key. This is
-      useful when being used in a simple `inoremap` key mapping like shown in [Bind it](#4-bind-it).
+      useful when being used in a simple `inoremap` key mapping like shown in [Bind it](#3-bind-it).
     - example: `insert_link({ i=true })`
 - `follow_link()`: take text between brackets (linked note) and open a Telescope file finder with it: selects note to
   open (incl. preview) - with optional note creation for non-existing notes, honoring the configured template
+  - **note**:
+    - notes linked to with headings or paragraph IDs **will not be created automatically**. See below for link notation.
 - `yank_notelink()` : yank a link to the current note, ready to paste
 - `show_calendar()` : opens up the calendar in a properly-sized vertical split at the very right
 - `paste_img_and_link()` : pastes an image from the clipboard into a file under `image_subdir` and inserts a link to it
@@ -325,7 +330,7 @@ The plugin defines the following functions.
 - `toggle_todo()` : turn a line into a `- [ ] ` line, or toggle between `- [ ]`, `- [x]`, and `- `.
   - **note**:
     - this function accepts a parameter `{i}`. If `true`, it will enter input mode by pressing the 'A' key. This is
-      useful when being used in a simple `inoremap` key mapping like shown in [Bind it](#4-bind-it).
+      useful when being used in a simple `inoremap` key mapping like shown in [Bind it](#3-bind-it).
     - example: `toggle_todo({ i=true })`
 - `show_backlinks()` : opens a telescope search for notes that `[[link]]` back to the current note.
 - `find_friends()` : opens a telescope search for notes that also `[[link]]` to the link under the cursor.
@@ -335,7 +340,7 @@ The plugin defines the following functions.
     - if the `telescope-media-files.nvim` plugin is installed, **a preview of images / media files will be given**
       during the search.
     - this function accepts a parameter `{i}`. If `true`, it will enter input mode by pressing the 'A' key. This is
-      useful for being able to continue to type after link insertion. See also: [Bind it](#4-bind-it).
+      useful for being able to continue to type after link insertion. See also: [Bind it](#3-bind-it).
     - example: `insert_link({ i=true })`
 - `preview_img()` : uses the `telescope-media-files.nvim` extension to preview the image / media file under the cursor
   of a markdown image link: `![](path/to/img.png)`. The cursor must be between `(the two parenthesis)`.
@@ -348,7 +353,44 @@ To use one of the functions above, just run them with the `:lua ...` command.
 :lua require("telekasten").find_daily_notes()
 ```
 
-### 3. Note templates
+### 2.0 Link notation
+
+The following links are supported:
+
+```markdown
+# Note links
+
+- [[A cool title]]  ................. links to the note named 'A cool title'
+- [[A cool title#Heading 27]]  ...... links to the heading 'Heading 27' within the note 
+                                      named 'A cool title'
+- [[A cool title#^xxxxxxxx]]  ....... links to the paragraph with id ^xxxxxxxx within the note 
+                                      named 'A cool title'
+- [[#Heading 27]]  .................. links to the heading 'Heading 27' within all notes
+- [[#^xxxxxxxx]]  ................... links to the paragraph with id ^xxxxxxxx within all notes
+
+## Optionally, notes can live in specific sub-directories
+
+- [[some/subdirectory/A cool title]]  ................. links to note named 'A cool title' 
+                                                        in some/subdirectory
+- [[some/subdirectory/A cool title#Heading 27]]  ...... links to the heading 'Heading 27' within 
+                                                        the note named 'A cool title' 
+                                                        in some/subdirectory
+- [[some/subdirectory/A cool title#^xxxxxxxx]]  ....... links to the paragraph with 
+                                                        id ^xxxxxxxx within the note named 
+                                                        'A cool title' in some/subdirectory
+
+# Media links
+
+Use these for images, PDF files, videos. If telescope-media-files is installed, these can 
+be previewed.
+
+- ![optional title](path/to/file) ... links to the file `path/to/file`
+```
+
+Note that notes linked to with headings or paragraph IDs **will not be created automatically**. 
+
+
+### 2.1 Note templates
 
 The functions `goto_today`, `goto_thisweek`, `find_daily_notes`, `find_weekly_notes`, and `follow_link` can create
 non-existing notes. This allows you to 'go to today' without having to create today's note beforehand. When you just
@@ -369,7 +411,7 @@ The following table shows which command relies on what config option:
 
 If the associated option is `true`, non-existing notes will be created.
 
-#### 3.1 Template files
+#### 2.1.1 Template files
 
 The options `template_new_note`, `template_new_daily`, and `template_new_weekly` are used to specify the paths to
 template text files that are used for creating new notes.
@@ -426,7 +468,7 @@ date:  {{hdate}}
 ## Sunday link
 ```
 
-### 3.2 Using the calendar
+### 2.2 Using the calendar
 
 When invoking `show_calendar()`, a calendar showing the previous, current, and next month is shown at the right side of
 vim.
@@ -443,7 +485,7 @@ command in vim:
 :CalendarT
 ```
 
-## 4. Bind it
+## 3. Bind it
 Usually, you would set up some key bindings, though:
 
 ```vim
@@ -482,7 +524,7 @@ hi tkBrackets ctermfg=gray
 hi tkHighlight ctermbg=yellow ctermfg=darkred cterm=bold
 ```
 
-## 5. The hardcoded stuff
+## 4. The hardcoded stuff
 
 Currently, the following things are hardcoded:
 - the file naming format for daily note files: `YYYY-MM-DD.ext` (e.g. `2021-11-21.md`)

doc/telekasten.txt

@@ -28,8 +28,9 @@ CONTENTS
     1. Setup ......................... |telekasten.setup|
     2. Colors ........................ |telekasten.colors|
     3. Usage ......................... |telekasten.usage|
-        3.1 Templates ................ |telekasten.templates|
+        3.1 Link Notation ............ |telekasten.link_notation|
-        3.2 Calendar ................. |telekasten.calendar|
+        3.2 Templates ................ |telekasten.templates|
+        3.3 Calendar ................. |telekasten.calendar|
     4. Suggested mappings ............ |telekasten.mappings|
     5. Credits ....................... |telekasten.credits|
 
@@ -464,7 +465,50 @@ telekasten.preview_img()~
     This requires the `telescope-media-files.nvim` plugin to be installed.
 
 --------------------------------------------------------------------------------
-Section 3.1: Templates                                    *telekasten.templates*
+Section 3.1: Link notation                            *telekasten.link_notation*
+
+The following links are supported:
+
+Note links~
+
+`[[A cool title]]`  ................. links to the note named 'A cool title'
+
+`[[A cool title#Heading 27]]`  ...... links to the heading 'Heading 27' within
+                                    the note named 'A cool title'
+
+`[[A cool title#^xxxxxxxx]]`  ....... links to the paragraph with id ^xxxxxxxx
+                                    within the note named 'A cool title'
+
+`[[#Heading 27]]`  .................. links to the heading 'Heading 27' within
+                                    all notes
+                                    
+`[[#^xxxxxxxx]]`  ................... links to the paragraph with id ^xxxxxxxx
+                                    within all notes
+
+Optionally, notes can live in specific sub-directories:
+
+`[[some/subdirectory/A cool title]]`: links to note named 'A cool title' 
+                                    in some/subdirectory
+
+`[[some/subdirectory/A cool title#Heading 27]]`: links to the heading
+                                    'Heading 27' within the note named 
+                                    'A cool title' in some/subdirectory
+
+`[[some/subdirectory/A cool title#^xxxxxxxx]]` : links to the paragraph
+                                    with id ^xxxxxxxx within the note named 
+                                    'A cool title' in some/subdirectory
+
+Media links~
+Use these for images, PDF files, videos. If telescope-media-files is installed,
+these can be previewed.
+
+`![optional title](path/to/file)` ... links to the file `path/to/file`
+
+Note that notes linked to with headings or paragraph IDs **will not be created
+automatically**. 
+
+--------------------------------------------------------------------------------
+Section 3.2: Templates                                    *telekasten.templates*
 
 Telekasten.nvim can create non-existing notes, providing this is enabled in
 the settings - which it is by default. Auto-creation of notes is useful when
@@ -549,7 +593,7 @@ And finally, what a template for weekly notes could look like:
 <
 
 --------------------------------------------------------------------------------
-Section 3.2: Calendar                                    *telekasten.calendar*
+Section 3.3: Calendar                                    *telekasten.calendar*
 
 When invoking `show_calendar()`, a calendar showing the previous, current, and
 next month is shown at the right side of vim.

lua/telekasten.lua

@@ -7,6 +7,7 @@ local conf = require("telescope.config").values
 local scan = require("plenary.scandir")
 local utils = require("telescope.utils")
 local previewers = require("telescope.previewers")
+local make_entry = require("telescope.make_entry")
 
 -- declare locals for the nvim api stuff to avoid more lsp warnings
 local vim = vim
@@ -348,7 +349,7 @@ local function find_files_sorted(opts)
 		return popup_opts.preview
 	end
 
-	local function make_entry(entry)
+	local function entry_maker(entry)
 		local iconic_entry = {}
 		iconic_entry.value = entry
 		iconic_entry.ordinal = entry
@@ -364,7 +365,7 @@ local function find_files_sorted(opts)
 	local picker = pickers.new(opts, {
 		finder = finders.new_table({
 			results = file_list,
-			entry_maker = make_entry,
+			entry_maker = entry_maker,
 		}),
 		sorter = conf.generic_sorter(opts),
 
@@ -469,14 +470,53 @@ local function FollowLink(opts)
 	opts = opts or {}
 	vim.cmd("normal yi]")
 	local title = vim.fn.getreg('"0')
+	local search_mode = "files"
 
+	local parts = vim.split(title, "#")
+	local filename
+
+	-- if there is a #
+	if #parts ~= 1 then
+		search_mode = "heading"
+		title = parts[2]
+		filename = parts[1]
+		parts = vim.split(title, "%^")
+		if #parts ~= 1 then
+			search_mode = "para"
+			title = parts[2]
+		end
+	end
+
+	if #filename > 0 then
+		local fexists = false
+		if file_exists(M.Cfg.weeklies .. "/" .. filename .. M.Cfg.extension) then
+			filename = M.Cfg.weeklies .. "/" .. filename .. M.Cfg.extension
+			fexists = true
+		end
+		if file_exists(M.Cfg.dailies .. "/" .. filename .. M.Cfg.extension) then
+			filename = M.Cfg.dailies .. "/" .. filename .. M.Cfg.extension
+			fexists = true
+		end
+		if file_exists(M.Cfg.home .. "/" .. filename .. M.Cfg.extension) then
+			filename = M.Cfg.home .. "/" .. filename .. M.Cfg.extension
+			fexists = true
+		end
+
+		if fexists == false then
+			-- print("error")
+			filename = ""
+		end
+	end
+
+	if search_mode == "files" then
 		-- check if fname exists anywhere
 		local fexists = file_exists(M.Cfg.weeklies .. "/" .. title .. M.Cfg.extension)
 		fexists = fexists or file_exists(M.Cfg.dailies .. "/" .. title .. M.Cfg.extension)
 		fexists = fexists or file_exists(M.Cfg.home .. "/" .. title .. M.Cfg.extension)
 
 		if
-		(fexists ~= true) and ((opts.follow_creates_nonexisting == true) or M.Cfg.follow_creates_nonexisting == true)
+			(fexists ~= true)
+			and ((opts.follow_creates_nonexisting == true) or M.Cfg.follow_creates_nonexisting == true)
 		then
 			local fname = M.Cfg.home .. "/" .. title .. M.Cfg.extension
 			create_note_from_template(title, fname, M.note_type_templates.normal)
@@ -490,6 +530,45 @@ local function FollowLink(opts)
 		})
 	end
 
+	if search_mode ~= "files" then
+		local search_pattern = title
+		local cwd = M.Cfg.home
+
+		opts.cwd = cwd
+
+		local live_grepper = finders.new_job(function(prompt)
+			if not prompt or prompt == "" then
+				return nil
+			end
+
+			local search_command = { "rg", "--vimgrep", "-e", "^#+\\s" .. prompt, "--" }
+			if search_mode == "para" then
+				search_command = { "rg", "--vimgrep", "-e", "\\^" .. prompt, "--" }
+			end
+
+			if #filename > 0 then
+				table.insert(search_command, filename)
+			else
+				table.insert(search_command, cwd)
+			end
+
+			local ret = vim.tbl_flatten({ search_command })
+			return ret
+		end, make_entry.gen_from_vimgrep(opts), opts.max_results, opts.cwd)
+
+		builtin.live_grep({
+			cwd = cwd,
+			prompt_title = "Notes referencing `" .. title .. "`",
+			default_text = search_pattern,
+			-- link to heading in specific file (a daily file): [[2021-02-22#Touchpoint]]
+			-- link to heading globally [[#Touchpoint]]
+			-- link to heading in specific file (a daily file): [[The cool note#^xAcSh-xxr]]
+			-- link to paragraph globally [[#^xAcSh-xxr]]
+			finder = live_grepper,
+		})
+	end
+end
+
 --
 -- PreviewImg:
 -- -----------