271 lines
11 KiB
Lua
271 lines
11 KiB
Lua
-- mod-version:3
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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 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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space_handling = false, -- turn off this feature to handle it our selfs
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patterns = {
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---- Place patterns that require spaces at start to optimize matching speed
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---- and apply the %s+ optimization immediately afterwards
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-- bullets
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{ pattern = "^%s*%*%s", type = "number" },
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{ pattern = "^%s*%-%s", type = "number" },
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{ pattern = "^%s*%+%s", type = "number" },
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-- numbered bullet
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{ pattern = "^%s*[0-9]+[%.%)]%s", type = "number" },
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-- blockquote
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{ pattern = "^%s*>+%s", type = "string" },
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-- alternative bold italic formats
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{ pattern = { "%s___", "___" }, type = "markdown_bold_italic" },
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{ pattern = { "%s__", "__" }, type = "markdown_bold" },
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{ pattern = { "%s_[%S]", "_" }, type = "markdown_italic" },
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-- reference links
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{
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pattern = "^%s*%[%^()["..in_squares_match.."]+()%]: ",
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type = { "function", "number", "function" }
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},
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{
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pattern = "^%s*%[%^?()["..in_squares_match.."]+()%]:%s+.*",
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type = { "function", "number", "function" }
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},
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-- optimization
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{ pattern = "%s+", type = "normal" },
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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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-- math
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{ pattern = { "%$%$", "%$%$", "\\" }, type = "string", syntax = ".tex"},
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{ regex = { "\\$", [[\$|(?=\\*\n)]], "\\" }, type = "string", syntax = ".tex"},
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-- code blocks
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{ pattern = { "```caddyfile", "```" }, type = "string", syntax = "Caddyfile" },
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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 = { "```nix", "```" }, type = "string", syntax = ".nix" },
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{ pattern = { "```", "```" }, type = "string" },
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{ pattern = { "``", "``" }, type = "string" },
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{ pattern = { "%f[\\`]%`[%S]", "`" }, type = "string" },
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-- lines
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{ pattern = "^%-%-%-+\n" , type = "comment" },
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{ pattern = "^%*%*%*+\n", type = "comment" },
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{ pattern = "^___+\n", type = "comment" },
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{ pattern = "^===+\n", type = "comment" },
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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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-- bold and italic
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{ pattern = { "%*%*%*%S", "%*%*%*" }, type = "markdown_bold_italic" },
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{ pattern = { "%*%*%S", "%*%*" }, 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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{
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pattern = { "%f[\\%*]%*[%S]", "%*%f[^%*]" },
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type = "markdown_italic"
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},
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-- alternative bold italic formats
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{ pattern = "^___[%s%p%w]+___" , type = "markdown_bold_italic" },
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{ pattern = "^__[%s%p%w]+__" , type = "markdown_bold" },
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{ pattern = "^_[%s%p%w]+_" , type = "markdown_italic" },
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-- heading with custom id
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{
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pattern = "^#+%s[%w%s%p]+(){()#[%w%-]+()}",
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type = { "keyword", "function", "string", "function" }
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},
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-- headings
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{ pattern = "^#+%s.+\n", 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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{ pattern = "^:%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 link
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{
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pattern = "!?%[!?%[()["..in_squares_match.."]+()%]%(()["..in_parenthesis_match.."]+()%)%]%(()["..in_parenthesis_match.."]+()%)",
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type = { "function", "string", "function", "number", "function", "number", "function" }
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},
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{
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pattern = "!?%[!?%[?()["..in_squares_match.."]+()%]?%]%(()["..in_parenthesis_match.."]+()%)",
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type = { "function", "string", "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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-- 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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-- optimize consecutive dashes used in tables
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{ pattern = "%-+", type = "normal" },
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},
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symbols = { },
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}
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-- Adjust the color on theme changes
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core.add_thread(function()
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local custom_fonts = { bold = {font = nil, color = nil}, italic = {}, bold_italic = {} }
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local initial_color
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local last_code_font
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local function set_font(attr)
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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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local font = style.code_font:copy(
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style.code_font:get_size(),
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attributes
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)
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custom_fonts[attr].font = font
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style.syntax_fonts["markdown_"..attr] = font
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end
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local function set_color(attr)
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custom_fonts[attr].color = style.syntax["keyword2"]
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style.syntax["markdown_"..attr] = style.syntax["keyword2"]
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end
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-- Add 3 type of font styles for use on markdown files
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for attr, _ in pairs(custom_fonts) do
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-- Only set it if the font wasn't manually customized
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if not style.syntax_fonts["markdown_"..attr] then
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set_font(attr)
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end
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-- Only set it if the color wasn't manually customized
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if not style.syntax["markdown_"..attr] then
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set_color(attr)
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end
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end
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while true do
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if last_code_font ~= style.code_font then
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last_code_font = style.code_font
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for attr, _ in pairs(custom_fonts) do
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-- Only set it if the font wasn't manually customized
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if style.syntax_fonts["markdown_"..attr] == custom_fonts[attr].font then
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set_font(attr)
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end
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end
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end
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if initial_color ~= style.syntax["keyword2"] then
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initial_color = style.syntax["keyword2"]
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for attr, _ in pairs(custom_fonts) do
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-- Only set it if the color wasn't manually customized
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if style.syntax["markdown_"..attr] == custom_fonts[attr].color then
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set_color(attr)
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end
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end
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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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