Go 的 Markdown 文本處理庫：blackfriday

blackfriday 是 Go 語言的 Markdown 文本處理庫。特點：兼容性強、通用擴展、安全、快速、線程安全、最小化依賴、標準兼容性。

所有功能支持，包括：

• Compatibility. The Markdown v1.0.3 test suite passes with the --tidy option. Without --tidy, the differences are mostly in whitespace and entity escaping, where blackfriday is more consistent and cleaner.

• Common extensions, including table support, fenced code blocks, autolinks, strikethroughs, non-strict emphasis, etc.

• Safety. Blackfriday is paranoid when parsing, making it safe to feed untrusted user input without fear of bad things happening. The test suite stress tests this and there are no known inputs that make it crash. If you find one, please let me know and send me the input that does it.

• Fast processing. It is fast enough to render on-demand in most web applications without having to cache the output.

• Thread safety. You can run multiple parsers in different goroutines without ill effect. There is no dependence on global shared state.

• Minimal dependencies. Blackfriday only depends on standard library packages in Go. The source code is pretty self-contained, so it is easy to add to any project, including Google App Engine projects.

• Standards compliant. Output successfully validates using the W3C validation tool for HTML 4.01 and XHTML 1.0 Transitional.

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