229 lines
9.0 KiB
Lua
229 lines
9.0 KiB
Lua
-- mod-version:2 -- lite-xl 2.0
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local syntax = require "core.syntax"
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local style = require "core.style"
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local core = require "core"
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local initial_scale = SCALE
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local initial_color = style.syntax["keyword2"]
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-- Add 3 type of font styles for use on markdown files
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for _, attr in pairs({"bold", "italic", "bold_italic"}) do
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local attributes = {}
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if attr ~= "bold_italic" then
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attributes[attr] = true
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else
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attributes["bold"] = true
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attributes["italic"] = true
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end
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-- no way to copy user custom font with additional attributes :(
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style.syntax_fonts["markdown_"..attr] = renderer.font.load(
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DATADIR .. "/fonts/JetBrainsMono-Regular.ttf",
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style.code_font:get_size(),
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attributes
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)
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-- also add a color for it
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style.syntax["markdown_"..attr] = style.syntax["keyword2"]
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end
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local in_squares_match = "^%[%]"
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local in_parenthesis_match = "^%(%)"
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syntax.add {
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name = "Markdown",
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files = { "%.md$", "%.markdown$" },
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block_comment = { "<!--", "-->" },
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patterns = {
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---- HTML rules imported and adapted from language_html
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---- to not conflict with markdown rules
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-- Inline JS and CSS
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{
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pattern = {
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"<%s*[sS][cC][rR][iI][pP][tT]%s+[tT][yY][pP][eE]%s*=%s*" ..
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"['\"]%a+/[jJ][aA][vV][aA][sS][cC][rR][iI][pP][tT]['\"]%s*>",
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"<%s*/[sS][cC][rR][iI][pP][tT]>"
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},
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syntax = ".js",
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type = "function"
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},
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{
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pattern = {
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"<%s*[sS][cC][rR][iI][pP][tT]%s*>",
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"<%s*/%s*[sS][cC][rR][iI][pP][tT]>"
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},
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syntax = ".js",
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type = "function"
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},
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{
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pattern = {
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"<%s*[sS][tT][yY][lL][eE][^>]*>",
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"<%s*/%s*[sS][tT][yY][lL][eE]%s*>"
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},
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syntax = ".css",
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type = "function"
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},
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-- Comments
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{ pattern = { "<!%-%-", "%-%->" }, type = "comment" },
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-- Tags
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{ pattern = "%f[^<]![%a_][%w_]*", type = "keyword2" },
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{ pattern = "%f[^<][%a_][%w_]*", type = "function" },
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{ pattern = "%f[^<]/[%a_][%w_]*", type = "function" },
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-- Attributes
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{
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pattern = "[a-z%-]+%s*()=%s*()\".-\"",
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type = { "keyword", "operator", "string" }
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},
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{
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pattern = "[a-z%-]+%s*()=%s*()'.-'",
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type = { "keyword", "operator", "string" }
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},
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{
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pattern = "[a-z%-]+%s*()=%s*()%-?%d[%d%.]*",
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type = { "keyword", "operator", "number" }
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},
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-- Entities
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{ pattern = "&#?[a-zA-Z0-9]+;", type = "keyword2" },
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---- Markdown rules
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-- code blocks
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{ pattern = { "```c++", "```" }, type = "string", syntax = ".cpp" },
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{ pattern = { "```cpp", "```" }, type = "string", syntax = ".cpp" },
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{ pattern = { "```python", "```" }, type = "string", syntax = ".py" },
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{ pattern = { "```ruby", "```" }, type = "string", syntax = ".rb" },
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{ pattern = { "```perl", "```" }, type = "string", syntax = ".pl" },
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{ pattern = { "```php", "```" }, type = "string", syntax = ".php" },
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{ pattern = { "```javascript", "```" }, type = "string", syntax = ".js" },
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{ pattern = { "```json", "```" }, type = "string", syntax = ".js" },
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{ pattern = { "```html", "```" }, type = "string", syntax = ".html" },
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{ pattern = { "```ini", "```" }, type = "string", syntax = ".ini" },
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{ pattern = { "```xml", "```" }, type = "string", syntax = ".xml" },
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{ pattern = { "```css", "```" }, type = "string", syntax = ".css" },
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{ pattern = { "```lua", "```" }, type = "string", syntax = ".lua" },
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{ pattern = { "```bash", "```" }, type = "string", syntax = ".sh" },
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{ pattern = { "```sh", "```" }, type = "string", syntax = ".sh" },
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{ pattern = { "```java", "```" }, type = "string", syntax = ".java" },
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{ pattern = { "```c#", "```" }, type = "string", syntax = ".cs" },
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{ pattern = { "```cmake", "```" }, type = "string", syntax = ".cmake" },
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{ pattern = { "```d", "```" }, type = "string", syntax = ".d" },
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{ pattern = { "```glsl", "```" }, type = "string", syntax = ".glsl" },
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{ pattern = { "```c", "```" }, type = "string", syntax = ".c" },
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{ pattern = { "```julia", "```" }, type = "string", syntax = ".jl" },
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{ pattern = { "```rust", "```" }, type = "string", syntax = ".rs" },
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{ pattern = { "```dart", "```" }, type = "string", syntax = ".dart" },
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{ pattern = { "```v", "```" }, type = "string", syntax = ".v" },
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{ pattern = { "```toml", "```" }, type = "string", syntax = ".toml" },
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{ pattern = { "```yaml", "```" }, type = "string", syntax = ".yaml" },
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{ pattern = { "```nim", "```" }, type = "string", syntax = ".nim" },
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{ pattern = { "```typescript", "```" }, type = "string", syntax = ".ts" },
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{ pattern = { "```rescript", "```" }, type = "string", syntax = ".res" },
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{ pattern = { "```moon", "```" }, type = "string", syntax = ".moon" },
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{ pattern = { "```go", "```" }, type = "string", syntax = ".go" },
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{ pattern = { "```lobster", "```" }, type = "string", syntax = ".lobster" },
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{ pattern = { "```liquid", "```" }, type = "string", syntax = ".liquid" },
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{ pattern = { "```", "```" }, type = "string" },
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{ pattern = { "``", "``" }, type = "string" },
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{ pattern = { "`", "`" }, type = "string" },
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-- strike
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{ pattern = { "~~", "~~" }, type = "keyword2" },
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-- highlight
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{ pattern = { "==", "==" }, type = "literal" },
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-- lines
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{ regex = "^\\-{2,}\\-$", type = "comment" },
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{ regex = "^\\*{2,}\\*$", type = "comment" },
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{ regex = "^\\_{2,}_$", type = "comment" },
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-- bullets
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{ regex = "^\\s*\\*\\s", type = "number" },
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{ regex = "^\\s*-\\s", type = "number" },
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{ regex = "^\\s*\\+\\s", type = "number" },
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-- numbered bullet
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{ regex = "^\\s*[0-9]+\\.\\s", type = "number" },
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-- blockquote
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{ regex = "^\\s*>{1,}\\s", type = "string" },
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-- bold and italic
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{ pattern = { "%*%*%*", "%*%*%*" }, type = "markdown_bold_italic" },
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{ pattern = { "%*%*", "%*%*" }, type = "markdown_bold" },
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-- handle edge case where asterisk can be at end of line and not close
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{ pattern = { "%*[%S]", "%*" }, type = "markdown_italic" },
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-- alternative bold italic formats
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{
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regex = "^_{3}[\\s[:punct:]A-Za-z0-9]+_{3}\\s" ,
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type = "markdown_bold_italic"
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},
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{
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regex = "^_{2}[\\s[:punct:]A-Za-z0-9]+_{2}\\s" ,
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type = "markdown_bold"
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},
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{
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regex = "^_{1}[\\s[:punct:]A-Za-z0-9]+_{1}\\s" ,
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type = "markdown_italic"
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},
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{ pattern = { "%s___", "___%f[%s]" }, type = "markdown_bold_italic" },
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{ pattern = { "%s__", "__%f[%s]" }, type = "markdown_bold" },
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{ pattern = { "%s_[%S]", "_%f[%s]" }, type = "markdown_italic" },
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-- headings
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{ regex = "^#{1,6}.+", type = "keyword" },
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-- superscript and subscript
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{
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pattern = "%^()%d+()%^",
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type = { "function", "number", "function" }
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},
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{
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pattern = "%~()%d+()%~",
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type = { "function", "number", "function" }
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},
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-- definitions
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{ regex = "^:\\s.+", type = "function" },
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-- emoji
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{ pattern = ":[a-zA-Z0-9_%-]+:", type = "literal" },
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-- images and links
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{
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pattern = "!?%[()["..in_squares_match.."]+()%]()%(()["..in_parenthesis_match.."]+()%)",
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type = { "function", "string", "function", "function", "number", "function" }
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},
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-- reference links
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{
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pattern = "%[()["..in_squares_match.."]+()%] *()%[()["..in_squares_match.."]+()%]",
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type = { "function", "string", "function", "function", "number", "function" }
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},
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{
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pattern = "%[%^?()["..in_squares_match.."]+()%]: ",
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type = { "function", "number", "function" }
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},
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{
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pattern = "%[%^?()["..in_squares_match.."]+()%]",
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type = { "function", "number", "function" }
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},
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-- url's and email
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{
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pattern = "<[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+%.[a-zA-Z0-9-.]+>",
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type = "function"
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},
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{ pattern = "<https?://%S+>", type = "function" },
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{ pattern = "https?://%S+", type = "function" }
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},
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symbols = { },
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}
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-- Adjust markdown fonts on scale changes.
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-- Note: this should be performed by lite-xl it self to all style.syntax_fonts
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core.add_thread(function()
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while true do
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if initial_scale ~= SCALE then
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for _, attr in pairs({"bold", "italic", "bold_italic"}) do
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style.syntax_fonts["markdown_"..attr] =
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style.syntax_fonts["markdown_"..attr]:copy(
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style.code_font:get_size()
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)
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end
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initial_scale = SCALE
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end
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-- we also adjust the color on theme changes
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if initial_color ~= style.syntax["keyword2"] then
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for _, attr in pairs({"bold", "italic", "bold_italic"}) do
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style.syntax["markdown_"..attr] = style.syntax["keyword2"]
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end
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initial_color = style.syntax["keyword2"]
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end
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coroutine.yield(1)
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end
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end)
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