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Diffstat (limited to 'vendor/github.com/writeas/go-strip-markdown')
4 files changed, 141 insertions, 0 deletions
diff --git a/vendor/github.com/writeas/go-strip-markdown/.gitignore b/vendor/github.com/writeas/go-strip-markdown/.gitignore new file mode 100644 index 00000000..270dc7ce --- /dev/null +++ b/vendor/github.com/writeas/go-strip-markdown/.gitignore @@ -0,0 +1,3 @@ +*~ +*.swp +cmd/strip/strip diff --git a/vendor/github.com/writeas/go-strip-markdown/LICENSE b/vendor/github.com/writeas/go-strip-markdown/LICENSE new file mode 100644 index 00000000..134a5b8e --- /dev/null +++ b/vendor/github.com/writeas/go-strip-markdown/LICENSE @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2016 Write.as + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/vendor/github.com/writeas/go-strip-markdown/README.md b/vendor/github.com/writeas/go-strip-markdown/README.md new file mode 100644 index 00000000..41664c52 --- /dev/null +++ b/vendor/github.com/writeas/go-strip-markdown/README.md @@ -0,0 +1,51 @@ +# go-strip-markdown + +[](https://godoc.org/github.com/writeas/go-strip-markdown) + +A Markdown stripper written in Go (golang). + +## Usage +You could create a simple command-line utility: + +```go +package main + +import ( + "fmt" + "github.com/writeas/go-strip-markdown" + "os" +) + +func main() { + if len(os.Args) < 2 { + os.Exit(1) + } + fmt.Println(stripmd.Strip(os.Args[1])) +} +``` + +You could pass it Markdown and get pure, beauteous text in return: + +```bash +./strip "# A Tale of Text Formatting + +_One fateful day_ a developer was presented with [Markdown](https://daringfireball.net/projects/markdown/). +And they wanted **none of it**." + +# A Tale of Text Formatting +# +# One fateful day a developer was presented with Markdown. +# And they wanted none of it. +``` + +## Inspiration +This was largely based off of [remove-markdown](https://github.com/stiang/remove-markdown), a Markdown stripper written in Javascript. + +## Used by + +This library is used in these projects: + +* [WriteFreely](https://github.com/writeas/writefreely) + +## License +MIT. diff --git a/vendor/github.com/writeas/go-strip-markdown/strip.go b/vendor/github.com/writeas/go-strip-markdown/strip.go new file mode 100644 index 00000000..c20812f6 --- /dev/null +++ b/vendor/github.com/writeas/go-strip-markdown/strip.go @@ -0,0 +1,66 @@ +// Package stripmd strips Markdown from text +package stripmd + +import ( + "regexp" +) + +var ( + listLeadersReg = regexp.MustCompile(`(?m)^([\s\t]*)([\*\-\+]|\d\.)\s+`) + + headerReg = regexp.MustCompile(`\n={2,}`) + strikeReg = regexp.MustCompile(`~~`) + codeReg = regexp.MustCompile("`{3}" + `.*\n`) + + htmlReg = regexp.MustCompile("<(.*?)>") + emphReg = regexp.MustCompile(`\*\*([^*]+)\*\*`) + emphReg2 = regexp.MustCompile(`\*([^*]+)\*`) + emphReg3 = regexp.MustCompile(`__([^_]+)__`) + emphReg4 = regexp.MustCompile(`_([^_]+)_`) + setextHeaderReg = regexp.MustCompile(`^[=\-]{2,}\s*$`) + footnotesReg = regexp.MustCompile(`\[\^.+?\](\: .*?$)?`) + footnotes2Reg = regexp.MustCompile(`\s{0,2}\[.*?\]: .*?$`) + imagesReg = regexp.MustCompile(`\!\[(.*?)\]\s?[\[\(].*?[\]\)]`) + linksReg = regexp.MustCompile(`\[(.*?)\][\[\(].*?[\]\)]`) + blockquoteReg = regexp.MustCompile(`>\s*`) + refLinkReg = regexp.MustCompile(`^\s{1,2}\[(.*?)\]: (\S+)( ".*?")?\s*$`) + atxHeaderReg = regexp.MustCompile(`(?m)^\#{1,6}\s*([^#]+)\s*(\#{1,6})?$`) + atxHeaderReg2 = regexp.MustCompile(`([\*_]{1,3})(\S.*?\S)?P1`) + atxHeaderReg3 = regexp.MustCompile("(?m)(`{3,})" + `(.*?)?P1`) + atxHeaderReg4 = regexp.MustCompile(`^-{3,}\s*$`) + atxHeaderReg5 = regexp.MustCompile("`(.+?)`") + atxHeaderReg6 = regexp.MustCompile(`\n{2,}`) +) + +// Strip returns the given string sans any Markdown. +// Where necessary, elements are replaced with their best textual forms, so +// for example, hyperlinks are stripped of their URL and become only the link +// text, and images lose their URL and become only the alt text. +func Strip(s string) string { + res := s + res = listLeadersReg.ReplaceAllString(res, "$1") + + res = headerReg.ReplaceAllString(res, "\n") + res = strikeReg.ReplaceAllString(res, "") + res = codeReg.ReplaceAllString(res, "") + + res = emphReg.ReplaceAllString(res, "$1") + res = emphReg2.ReplaceAllString(res, "$1") + res = emphReg3.ReplaceAllString(res, "$1") + res = emphReg4.ReplaceAllString(res, "$1") + res = htmlReg.ReplaceAllString(res, "$1") + res = setextHeaderReg.ReplaceAllString(res, "") + res = footnotesReg.ReplaceAllString(res, "") + res = footnotes2Reg.ReplaceAllString(res, "") + res = imagesReg.ReplaceAllString(res, "$1") + res = linksReg.ReplaceAllString(res, "$1") + res = blockquoteReg.ReplaceAllString(res, " ") + res = refLinkReg.ReplaceAllString(res, "") + res = atxHeaderReg.ReplaceAllString(res, "$1") + res = atxHeaderReg2.ReplaceAllString(res, "$2") + res = atxHeaderReg3.ReplaceAllString(res, "$2") + res = atxHeaderReg4.ReplaceAllString(res, "") + res = atxHeaderReg5.ReplaceAllString(res, "$1") + res = atxHeaderReg6.ReplaceAllString(res, "\n\n") + return res +} |