From: Hiroshi Shirosaki <h.shirosaki@gmail.com>
Date: Mon, 18 Jan 2016 02:03:51 +0000 (+0900)
Subject: Add TOML/JSON front matter support
X-Git-Url: https://git.madduck.net/etc/vim.git/commitdiff_plain/a3f273839d1b45fe73b3bc48e1d7a8c6d1422187?hp=06820bf116da25bf9fc44f7091c3e9bcc5e972b1

Add TOML/JSON front matter support

Add new options to enable front matter.
Fix #188, #242
---

diff --git a/Makefile b/Makefile
index 5d23114..a50adc0 100644
--- a/Makefile
+++ b/Makefile
@@ -18,18 +18,22 @@ install:
 	mkdir -pv ${REGISTRY}
 	cp -v registry/markdown.yaml ${REGISTRY}/markdown.yaml
 
-test: build/tabular build/vader.vim
+test: build/tabular build/vim-toml build/vader.vim
 	test/run-tests.sh
 .PHONY: test
 
-update: build/tabular build/vader.vim
+update: build/tabular build/vim-toml build/vader.vim
 	cd build/tabular && git pull
+	cd build/vim-toml && git pull
 	cd build/vader.vim && git pull
 .PHONY: update
 
 build/tabular: | build
 	git clone https://github.com/godlygeek/tabular build/tabular
 
+build/vim-toml: | build
+	git clone https://github.com/cespare/vim-toml build/vim-toml
+
 build/vader.vim: | build
 	git clone https://github.com/junegunn/vader.vim build/vader.vim
 
diff --git a/README.md b/README.md
index 1243577..60c58ec 100644
--- a/README.md
+++ b/README.md
@@ -137,14 +137,32 @@ Used as `$x^2$`, `$$x^2$$`, escapable as `\$x\$` and `\$\$x\$\$`.
 let g:vim_markdown_math = 1
 ```
 
-#### YAML frontmatter
+#### YAML Front Matter
 
-Highlight YAML frontmatter as used by Jekyll:
+Highlight YAML front matter as used by Jekyll or [Hugo](https://gohugo.io/content/front-matter/).
 
 ```vim
 let g:vim_markdown_frontmatter = 1
 ```
 
+#### TOML Front Matter
+
+Highlight TOML front matter as used by [Hugo](https://gohugo.io/content/front-matter/).
+
+TOML syntax highlight requires [vim-toml](https://github.com/cespare/vim-toml).
+
+```vim
+let g:vim_markdown_toml_frontmatter = 1
+```
+
+#### JSON Front Matter
+
+Highlight JSON front matter as used by [Hugo](https://gohugo.io/content/front-matter/).
+
+```vim
+let g:vim_markdown_json_frontmatter = 1
+```
+
 ## Mappings
 
 The following work on normal and visual modes:
diff --git a/syntax/markdown.vim b/syntax/markdown.vim
index 778e818..05cf751 100644
--- a/syntax/markdown.vim
+++ b/syntax/markdown.vim
@@ -110,6 +110,23 @@ syn match  mkdRule         /^\s*\*\{3,5}$/
 if get(g:, 'vim_markdown_frontmatter', 0)
   syn include @yamlTop syntax/yaml.vim
   syn region Comment matchgroup=mkdDelimiter start="\%^---$" end="^---$" contains=@yamlTop
+  unlet! b:current_syntax
+endif
+
+if get(g:, 'vim_markdown_toml_frontmatter', 0)
+  try
+    syn include @tomlTop syntax/toml.vim
+    syn region Comment matchgroup=mkdDelimiter start="\%^+++$" end="^+++$" transparent contains=@tomlTop
+    unlet! b:current_syntax
+  catch /E484/
+    syn region Comment matchgroup=mkdDelimiter start="\%^+++$" end="^+++$"
+  endtry
+endif
+
+if get(g:, 'vim_markdown_json_frontmatter', 0)
+  syn include @jsonTop syntax/json.vim
+  syn region Comment matchgroup=mkdDelimiter start="\%^{$" end="^}$" contains=@jsonTop
+  unlet! b:current_syntax
 endif
 
 if get(g:, 'vim_markdown_math', 0)
diff --git a/test/run-tests.sh b/test/run-tests.sh
index 731b3ce..ba00fc0 100755
--- a/test/run-tests.sh
+++ b/test/run-tests.sh
@@ -5,7 +5,7 @@ set -e
 
 cd "$( dirname "${BASH_SOURCE[0]}" )"
 
-for dep in ../build/tabular ../build/vader.vim; do
+for dep in ../build/tabular ../build/vim-toml ../build/vader.vim; do
   if [[ ! -d $dep ]]; then
     echo "Missing dependency: $dep"
     echo "You may just want to use 'make test'."
diff --git a/test/syntax.vader b/test/syntax.vader
index ecf36b7..f2fc936 100644
--- a/test/syntax.vader
+++ b/test/syntax.vader
@@ -489,6 +489,65 @@ Execute (rules are not mistaken by YAML frontmatter delimiters):
   let g:vim_markdown_frontmatter=1
   syn off | syn on
   AssertEqual SyntaxAt(5, 1), 'mkdRule'
+  unlet g:vim_markdown_frontmatter
+
+# TOML frontmatter
+
+Given markdown;
++++
+a = "b"
++++
+
+Execute (TOML frontmatter is controlled by the option):
+  syn off | syn on
+  AssertNotEqual SyntaxOf('b'), 'tomlString'
+  let g:vim_markdown_toml_frontmatter=1
+  syn off | syn on
+  AssertEqual SyntaxOf('b'), 'tomlString'
+  let g:vim_markdown_toml_frontmatter=0
+  syn off | syn on
+  AssertNotEqual SyntaxOf('b'), 'tomlString'
+
+Given markdown;
+
++++
+a = "b"
++++
+
+Execute (TOML frontmatter only works if it's the first thing in the file):
+  let g:vim_markdown_toml_frontmatter=1
+  syn off | syn on
+  AssertNotEqual SyntaxOf('b'), 'tomlString'
+  unlet g:vim_markdown_toml_frontmatter
+
+# JSON frontmatter
+
+Given markdown;
+{
+  "a": "b"
+}
+
+Execute (JSON frontmatter is controlled by the option):
+  syn off | syn on
+  AssertNotEqual SyntaxOf('a'), 'jsonKeyword'
+  let g:vim_markdown_json_frontmatter=1
+  syn off | syn on
+  AssertEqual SyntaxOf('a'), 'jsonKeyword'
+  let g:vim_markdown_json_frontmatter=0
+  syn off | syn on
+  AssertNotEqual SyntaxOf('a'), 'jsonKeyword'
+
+Given markdown;
+
+{
+  "a": "b"
+}
+
+Execute (JSON frontmatter only works if it's the first thing in the file):
+  let g:vim_markdown_json_frontmatter=1
+  syn off | syn on
+  AssertNotEqual SyntaxOf('a'), 'jsonKeyword'
+  unlet g:vim_markdown_json_frontmatter
 
 # Header
 
diff --git a/test/vimrc b/test/vimrc
index 524fe6c..015febf 100644
--- a/test/vimrc
+++ b/test/vimrc
@@ -1,6 +1,7 @@
 set nocompatible
 set rtp+=../
 set rtp+=../build/tabular/
+set rtp+=../build/vim-toml/
 set rtp+=../build/vader.vim/
 let $LANG='en_US'
 filetype on