Expand tabs

[etc/vim.git] / README.md

diff --git a/README.md b/README.md
index f5cbaf9aa4c1bf0988a6b694da3024bf458aef67..6695b06ac74f62d5d312f55bbb22083f22fe0e94 100644 (file)
--- a/README.md
+++ b/README.md
@@ -5,6 +5,7 @@
 Syntax highlighting, matching rules and mappings for [the original Markdown](http://daringfireball.net/projects/markdown/) and extensions.
 
 1. [Installation](#installation)
 Syntax highlighting, matching rules and mappings for [the original Markdown](http://daringfireball.net/projects/markdown/) and extensions.
 
 1. [Installation](#installation)

+1. [Basic usage](#basic-usage)

 1. [Options](#options)
 1. [Mappings](#mappings)
 1. [Commands](#commands)
 1. [Options](#options)
 1. [Mappings](#mappings)
 1. [Commands](#commands)


@@ -13,7 +14,7 @@ Syntax highlighting, matching rules and mappings for [the original Markdown](htt
 
 ## Installation
 
 
 ## Installation
 

-If you use [Vundle](https://github.com/gmarik/vundle), add the following line to your `~/.vimrc`:
+If you use [Vundle](https://github.com/gmarik/vundle), add the following lines to your `~/.vimrc`:

 
 ```vim
 Plugin 'godlygeek/tabular'
 
 ```vim
 Plugin 'godlygeek/tabular'


@@ -52,117 +53,187 @@ cd ~/.vim
 tar --strip=1 -zxf vim-markdown-master.tar.gz
 ```
 
 tar --strip=1 -zxf vim-markdown-master.tar.gz
 ```
 

+## Basic usage
+
+### Folding
+
+Folding is enabled for headers by default.
+
+The following commands are useful to open and close folds:
+
+- `zr`: reduces fold level throughout the buffer
+- `zR`: opens all folds
+- `zm`: increases fold level throughout the buffer
+- `zM`: folds everything all the way
+- `za`: open a fold your cursor is on
+- `zA`: open a fold your cursor is on recursively
+- `zc`: close a fold your cursor is on
+- `zC`: close a fold your cursor is on recursively
+
+[Options](#options) are available to disable folding or change folding style.
+
+Try `:help fold-expr` and `:help fold-commands` for details.
+
+### Concealing
+
+Concealing is set for some syntax such as bold, italic, code block and link.
+
+Concealing lets you conceal text with other text. The actual source text is not modified. If you put your cursor on the concealed line, the conceal goes away.
+
+[Options](#options) are available to disable or change concealing.
+
+Try `:help concealcursor` and `:help conceallevel` for details.
+

 ## Options
 
 ### Disable Folding
 
 ## Options
 
 ### Disable Folding
 

-Add the following line to your `.vimrc` to disable the folding configuration:
+-   `g:vim_markdown_folding_disabled`

 
 

-```vim
-let g:vim_markdown_folding_disabled = 1
-```
+    Add the following line to your `.vimrc` to disable the folding configuration:

 
 

-This option only controls Vim Markdown specific folding configuration.
+        let g:vim_markdown_folding_disabled = 1

 
 

-To enable/disable folding use Vim's standard folding configuration.
+    This option only controls Vim Markdown specific folding configuration.

 
 

-```vim
-set [no]foldenable
-```
+    To enable/disable folding use Vim's standard folding configuration.
+
+        set [no]foldenable

 
 ### Change fold style
 
 
 ### Change fold style
 

-To fold in a style like [python-mode](https://github.com/klen/python-mode), add the following to your `.vimrc`:
+-   `g:vim_markdown_folding_style_pythonic`

 
 

-```vim
-let g:vim_markdown_folding_style_pythonic = 1
-```
+    To fold in a style like [python-mode](https://github.com/klen/python-mode), add the following to your `.vimrc`:

 
 

-Level 1 heading which is served as a document title is not folded.
-`g:vim_markdown_folding_level` setting is not active with this fold style.
+        let g:vim_markdown_folding_style_pythonic = 1

 
 

-To prevent foldtext from being set add the following to your `.vimrc`:
+    Level 1 heading which is served as a document title is not folded.
+    `g:vim_markdown_folding_level` setting is not active with this fold style.

 
 

-```vim
-let g:vim_markdown_override_foldtext = 0
-```
+-   `g:vim_markdown_override_foldtext`
+
+    To prevent foldtext from being set add the following to your `.vimrc`:
+
+        let g:vim_markdown_override_foldtext = 0

 
 ### Set header folding level
 
 
 ### Set header folding level
 

-Folding level is a number between 1 and 6. By default, if not specified, it is set to 1.
+-   `g:vim_markdown_folding_level`

 
 

-```vim
-let g:vim_markdown_folding_level = 6
-```
+    Folding level is a number between 1 and 6. By default, if not specified, it is set to 1.

 
 

-Tip: it can be changed on the fly with:
+        let g:vim_markdown_folding_level = 6

 
 

-```vim
-:let g:vim_markdown_folding_level = 1
-:edit
-```
+    Tip: it can be changed on the fly with:
+
+        :let g:vim_markdown_folding_level = 1
+        :edit

 
 ### Disable Default Key Mappings
 
 
 ### Disable Default Key Mappings
 

-Add the following line to your `.vimrc` to disable default key mappings:
+-   `g:vim_markdown_no_default_key_mappings`

 
 

-```vim
-let g:vim_markdown_no_default_key_mappings = 1
-```
+    Add the following line to your `.vimrc` to disable default key mappings:
+
+        let g:vim_markdown_no_default_key_mappings = 1

 
 

-You can also map them by yourself with `<Plug>` mappings.
+    You can also map them by yourself with `<Plug>` mappings.

 
 ### Enable TOC window auto-fit
 
 
 ### Enable TOC window auto-fit
 

-Allow for the TOC window to auto-fit when it's possible for it to shrink.
-It never increases its default size (half screen), it only shrinks.
+-   `g:vim_markdown_toc_autofit`

 
 

-```vim
-let g:vim_markdown_toc_autofit = 1
-```
+    Allow for the TOC window to auto-fit when it's possible for it to shrink.
+    It never increases its default size (half screen), it only shrinks.
+
+        let g:vim_markdown_toc_autofit = 1

 
 ### Text emphasis restriction to single-lines
 
 
 ### Text emphasis restriction to single-lines
 

-By default text emphasis works across multiple lines until a closing token is found. However, it's possible to restrict text emphasis to a single line (ie, for it to be applied a closing token must be found on the same line). To do so:
+-   `g:vim_markdown_emphasis_multiline`

 
 

-```vim
-let g:vim_markdown_emphasis_multiline = 0
-```
+    By default text emphasis works across multiple lines until a closing token is found. However, it's possible to restrict text emphasis to a single line (i.e., for it to be applied a closing token must be found on the same line). To do so:
+
+        let g:vim_markdown_emphasis_multiline = 0

 
 ### Syntax Concealing
 
 
 ### Syntax Concealing
 

-Concealing is set for some syntax.
+-   `g:vim_markdown_conceal`

 
 

-For example, conceal `[link text](link url)` as just `link text`.
+    Concealing is set for some syntax.

 
 

-To enable conceal use Vim's standard conceal configuration.
+    For example, conceal `[link text](link url)` as just `link text`.
+    Also, `_italic_` and `*italic*` will conceal to just _italic_.
+    Similarly `__bold__`, `**bold**`, `___italic bold___`, and `***italic bold***`
+    will conceal to just __bold__, **bold**, ___italic bold___, and ***italic bold*** respectively.

 
 

-```vim
-set conceallevel=2
-```
+    To enable conceal use Vim's standard conceal configuration.

 
 

-To disable conceal regardless of `conceallevel` setting, add the following to your `.vimrc`:
+        set conceallevel=2

 
 

-```vim
-let g:vim_markdown_conceal = 0
-```
+    To disable conceal regardless of `conceallevel` setting, add the following to your `.vimrc`:
+
+        let g:vim_markdown_conceal = 0
+
+    To disable math conceal with LaTeX math syntax enabled, add the following to your `.vimrc`:
+
+        let g:tex_conceal = ""
+        let g:vim_markdown_math = 1
+
+-   `g:vim_markdown_conceal_code_blocks`
+
+    Disabling conceal for code fences requires an additional setting:
+
+        let g:vim_markdown_conceal_code_blocks = 0

 
 ### Fenced code block languages
 
 
 ### Fenced code block languages
 

-You can use filetype name as fenced code block languages for syntax highlighting.
-If you want to use different name from filetype, you can add it in your `.vimrc` like so:
+-   `g:vim_markdown_fenced_languages`

 
 

-```vim
-let g:vim_markdown_fenced_languages = ['csharp=cs']
-```
+    You can use filetype name as fenced code block languages for syntax highlighting.
+    If you want to use different name from filetype, you can add it in your `.vimrc` like so:
+
+        let g:vim_markdown_fenced_languages = ['csharp=cs']
+
+    This will cause the following to be highlighted using the `cs` filetype syntax.
+
+        ```csharp
+        ...
+        ```
+
+    Default is `['c++=cpp', 'viml=vim', 'bash=sh', 'ini=dosini']`.

 
 

-This will cause the following to be highlighted using the `cs` filetype syntax.
+### Follow named anchors

 
 

-    ```csharp
-    ...
-    ```
+-   `g:vim_markdown_follow_anchor`

 
 

-Default is `['c++=cpp', 'viml=vim', 'bash=sh', 'ini=dosini']`.
+    This feature allows the `ge` command to follow named anchors in links of the form
+    `file#anchor` or just `#anchor`, where file may omit the `.md` extension as
+    usual. Two variables control its operation:
+
+        let g:vim_markdown_follow_anchor = 1
+
+    This tells vim-markdown whether to attempt to follow a named anchor in a link or
+    not. When it is 1, and only if a link can be split in two parts by the pattern
+    '#', then the first part is interpreted as the file and the second one as the
+    named anchor. This also includes urls of the form `#anchor`, for which the first
+    part is considered empty, meaning that the target file is the current one. After
+    the file is opened, the anchor will be searched.
+
+    Default is `0`.
+
+-   `g:vim_markdown_anchorexpr`
+
+        let g:vim_markdown_anchorexpr = "'<<'.v:anchor.'>>'"
+
+    This expression will be evaluated substituting `v:anchor` with a quoted string
+    that contains the anchor to visit. The result of the evaluation will become the
+    real anchor to search in the target file. This is useful in order to convert
+    anchors of the form, say, `my-section-title` to searches of the form `My Section
+    Title` or `<<my-section-title>>`.
+
+    Default is `''`.

 
 ### Syntax extensions
 
 
 ### Syntax extensions
 


@@ -170,61 +241,114 @@ The following options control which syntax extensions will be turned on. They ar
 
 #### LaTeX math
 
 
 #### LaTeX math
 

-Used as `$x^2$`, `$$x^2$$`, escapable as `\$x\$` and `\$\$x\$\$`.
+-   `g:vim_markdown_math`

 
 

-```vim
-let g:vim_markdown_math = 1
-```
+    Used as `$x^2$`, `$$x^2$$`, escapable as `\$x\$` and `\$\$x\$\$`.
+
+        let g:vim_markdown_math = 1

 
 #### YAML Front Matter
 
 
 #### YAML Front Matter
 

-Highlight YAML front matter as used by Jekyll or [Hugo](https://gohugo.io/content/front-matter/).
+-   `g:vim_markdown_frontmatter`

 
 

-```vim
-let g:vim_markdown_frontmatter = 1
-```
+    Highlight YAML front matter as used by Jekyll or [Hugo](https://gohugo.io/content/front-matter/).
+
+        let g:vim_markdown_frontmatter = 1

 
 #### TOML Front Matter
 
 
 #### TOML Front Matter
 

-Highlight TOML front matter as used by [Hugo](https://gohugo.io/content/front-matter/).
+-   `g:vim_markdown_toml_frontmatter`

 
 

-TOML syntax highlight requires [vim-toml](https://github.com/cespare/vim-toml).
+    Highlight TOML front matter as used by [Hugo](https://gohugo.io/content/front-matter/).

 
 

-```vim
-let g:vim_markdown_toml_frontmatter = 1
-```
+    TOML syntax highlight requires [vim-toml](https://github.com/cespare/vim-toml).
+
+        let g:vim_markdown_toml_frontmatter = 1

 
 #### JSON Front Matter
 
 
 #### JSON Front Matter
 

-Highlight JSON front matter as used by [Hugo](https://gohugo.io/content/front-matter/).
+-   `g:vim_markdown_json_frontmatter`

 
 

-JSON syntax highlight requires [vim-json](https://github.com/elzr/vim-json).
+    Highlight JSON front matter as used by [Hugo](https://gohugo.io/content/front-matter/).

 
 

-```vim
-let g:vim_markdown_json_frontmatter = 1
-```
+    JSON syntax highlight requires [vim-json](https://github.com/elzr/vim-json).
+
+        let g:vim_markdown_json_frontmatter = 1
+
+#### Strikethrough
+
+-   `g:vim_markdown_strikethrough`
+
+    Strikethrough uses two tildes. `~~Scratch this.~~`
+
+        let g:vim_markdown_strikethrough = 1

 
 ### Adjust new list item indent
 
 
 ### Adjust new list item indent
 

-You can adjust a new list indent. For example, you insert a single line like below:
+-   `g:vim_markdown_new_list_item_indent`

 
 

-```
-* item1
-```
+    You can adjust a new list indent. For example, you insert a single line like below:

 
 

-Then if you type `o` to insert new line in vim and type `* item2`, the result will be:
+        * item1

 
 

-```
-* item1
-    * item2
-```
+    Then if you type `o` to insert new line in vim and type `* item2`, the result will be:

 
 

-vim-markdown automatically insert the indent. By default, the number of spaces of indent is 4. If you'd like to change the number as 2, just write:
+        * item1
+            * item2

 
 

-```vim
-let g:vim_markdown_new_list_item_indent = 2
-```
+    vim-markdown automatically insert the indent. By default, the number of spaces of indent is 4. If you'd like to change the number as 2, just write:
+
+        let g:vim_markdown_new_list_item_indent = 2
+
+### Do not require .md extensions for Markdown links
+
+-   `g:vim_markdown_no_extensions_in_markdown`
+
+    If you want to have a link like this `[link text](link-url)` and follow it for editing in vim using the `ge` command, but have it open the file "link-url.md" instead of the file "link-url", then use this option:
+
+        let g:vim_markdown_no_extensions_in_markdown = 1
+
+    This is super useful for GitLab and GitHub wiki repositories.
+
+    Normal behaviour would be that vim-markup required you to do this `[link text](link-url.md)`, but this is not how the Gitlab and GitHub wiki repositories work. So this option adds some consistency between the two.
+
+### Auto-write when following link
+
+-   `g:vim_markdown_autowrite`
+
+    If you follow a link like this `[link text](link-url)` using the `ge` shortcut, this option will automatically save any edits you made before moving you:
+
+        let g:vim_markdown_autowrite = 1
+
+### Change default file extension
+
+-   `g:vim_markdown_auto_extension_ext`
+
+    If you would like to use a file extension other than `.md` you may do so using the `vim_markdown_auto_extension_ext` variable:
+
+        let g:vim_markdown_auto_extension_ext = 'txt'
+
+### Do not automatically insert bulletpoints
+
+-   `g:vim_markdown_auto_insert_bullets`
+
+    Automatically inserting bulletpoints can lead to problems when wrapping text
+    (see issue #232 for details), so it can be disabled:
+
+        let g:vim_markdown_auto_insert_bullets = 0
+
+    In that case, you probably also want to set the new list item indent to 0 as
+    well, or you will have to remove an indent each time you add a new list item:
+
+        let g:vim_markdown_new_list_item_indent = 0
+
+### Change how to open new files
+
+-   `g:vim_markdown_edit_url_in`
+
+    By default when following a link the target file will be opened in your current buffer.  This behavior can change if you prefer using splits or tabs by using the `vim_markdown_edit_url_in` variable.  Possible values are `tab`, `vsplit`, `hsplit`, `current` opening in a new tab, vertical split, horizontal split, and current buffer respectively.  Defaults to current buffer if not set:

 
 

+        let g:vim_markdown_edit_url_in = 'tab'

 
 ## Mappings
 
 
 ## Mappings