GOPROXY means we can avoid vendoring

1 files changed, 0 insertions, 473 deletions

diff --git a/vendor/github.com/jaytaylor/html2text/html2text.go b/vendor/github.com/jaytaylor/html2text/html2text.go
deleted file mode 100644
index fa36990..0000000
--- a/vendor/github.com/jaytaylor/html2text/html2text.go
+++ /dev/null
@@ -1,473 +0,0 @@
-package html2text
-
-import (
-	"bytes"
-	"io"
-	"regexp"
-	"strings"
-	"unicode"
-
-	"github.com/olekukonko/tablewriter"
-	"github.com/ssor/bom"
-	"golang.org/x/net/html"
-	"golang.org/x/net/html/atom"
-)
-
-// Options provide toggles and overrides to control specific rendering behaviors.
-type Options struct {
-	PrettyTables bool // Turns on pretty ASCII rendering for table elements.
-	OmitLinks    bool // Turns on omitting links
-}
-
-// FromHTMLNode renders text output from a pre-parsed HTML document.
-func FromHTMLNode(doc *html.Node, o ...Options) (string, error) {
-	var options Options
-	if len(o) > 0 {
-		options = o[0]
-	}
-
-	ctx := textifyTraverseContext{
-		buf:     bytes.Buffer{},
-		options: options,
-	}
-	if err := ctx.traverse(doc); err != nil {
-		return "", err
-	}
-
-	text := strings.TrimSpace(newlineRe.ReplaceAllString(
-		strings.Replace(ctx.buf.String(), "\n ", "\n", -1), "\n\n"),
-	)
-	return text, nil
-}
-
-// FromReader renders text output after parsing HTML for the specified
-// io.Reader.
-func FromReader(reader io.Reader, options ...Options) (string, error) {
-	newReader, err := bom.NewReaderWithoutBom(reader)
-	if err != nil {
-		return "", err
-	}
-	doc, err := html.Parse(newReader)
-	if err != nil {
-		return "", err
-	}
-	return FromHTMLNode(doc, options...)
-}
-
-// FromString parses HTML from the input string, then renders the text form.
-func FromString(input string, options ...Options) (string, error) {
-	bs := bom.CleanBom([]byte(input))
-	text, err := FromReader(bytes.NewReader(bs), options...)
-	if err != nil {
-		return "", err
-	}
-	return text, nil
-}
-
-var (
-	spacingRe = regexp.MustCompile(`[ \r\n\t]+`)
-	newlineRe = regexp.MustCompile(`\n\n+`)
-)
-
-// traverseTableCtx holds text-related context.
-type textifyTraverseContext struct {
-	buf bytes.Buffer
-
-	prefix          string
-	tableCtx        tableTraverseContext
-	options         Options
-	endsWithSpace   bool
-	justClosedDiv   bool
-	blockquoteLevel int
-	lineLength      int
-	isPre           bool
-}
-
-// tableTraverseContext holds table ASCII-form related context.
-type tableTraverseContext struct {
-	header     []string
-	body       [][]string
-	footer     []string
-	tmpRow     int
-	isInFooter bool
-}
-
-func (tableCtx *tableTraverseContext) init() {
-	tableCtx.body = [][]string{}
-	tableCtx.header = []string{}
-	tableCtx.footer = []string{}
-	tableCtx.isInFooter = false
-	tableCtx.tmpRow = 0
-}
-
-func (ctx *textifyTraverseContext) handleElement(node *html.Node) error {
-	ctx.justClosedDiv = false
-
-	switch node.DataAtom {
-	case atom.Br:
-		return ctx.emit("\n")
-
-	case atom.H1, atom.H2, atom.H3:
-		subCtx := textifyTraverseContext{}
-		if err := subCtx.traverseChildren(node); err != nil {
-			return err
-		}
-
-		str := subCtx.buf.String()
-		dividerLen := 0
-		for _, line := range strings.Split(str, "\n") {
-			if lineLen := len([]rune(line)); lineLen-1 > dividerLen {
-				dividerLen = lineLen - 1
-			}
-		}
-		var divider string
-		if node.DataAtom == atom.H1 {
-			divider = strings.Repeat("*", dividerLen)
-		} else {
-			divider = strings.Repeat("-", dividerLen)
-		}
-
-		if node.DataAtom == atom.H3 {
-			return ctx.emit("\n\n" + str + "\n" + divider + "\n\n")
-		}
-		return ctx.emit("\n\n" + divider + "\n" + str + "\n" + divider + "\n\n")
-
-	case atom.Blockquote:
-		ctx.blockquoteLevel++
-		ctx.prefix = strings.Repeat(">", ctx.blockquoteLevel) + " "
-		if err := ctx.emit("\n"); err != nil {
-			return err
-		}
-		if ctx.blockquoteLevel == 1 {
-			if err := ctx.emit("\n"); err != nil {
-				return err
-			}
-		}
-		if err := ctx.traverseChildren(node); err != nil {
-			return err
-		}
-		ctx.blockquoteLevel--
-		ctx.prefix = strings.Repeat(">", ctx.blockquoteLevel)
-		if ctx.blockquoteLevel > 0 {
-			ctx.prefix += " "
-		}
-		return ctx.emit("\n\n")
-
-	case atom.Div:
-		if ctx.lineLength > 0 {
-			if err := ctx.emit("\n"); err != nil {
-				return err
-			}
-		}
-		if err := ctx.traverseChildren(node); err != nil {
-			return err
-		}
-		var err error
-		if !ctx.justClosedDiv {
-			err = ctx.emit("\n")
-		}
-		ctx.justClosedDiv = true
-		return err
-
-	case atom.Li:
-		if err := ctx.emit("* "); err != nil {
-			return err
-		}
-
-		if err := ctx.traverseChildren(node); err != nil {
-			return err
-		}
-
-		return ctx.emit("\n")
-
-	case atom.B, atom.Strong:
-		subCtx := textifyTraverseContext{}
-		subCtx.endsWithSpace = true
-		if err := subCtx.traverseChildren(node); err != nil {
-			return err
-		}
-		str := subCtx.buf.String()
-		return ctx.emit("*" + str + "*")
-
-	case atom.A:
-		linkText := ""
-		// For simple link element content with single text node only, peek at the link text.
-		if node.FirstChild != nil && node.FirstChild.NextSibling == nil && node.FirstChild.Type == html.TextNode {
-			linkText = node.FirstChild.Data
-		}
-
-		// If image is the only child, take its alt text as the link text.
-		if img := node.FirstChild; img != nil && node.LastChild == img && img.DataAtom == atom.Img {
-			if altText := getAttrVal(img, "alt"); altText != "" {
-				if err := ctx.emit(altText); err != nil {
-					return err
-				}
-			}
-		} else if err := ctx.traverseChildren(node); err != nil {
-			return err
-		}
-
-		hrefLink := ""
-		if attrVal := getAttrVal(node, "href"); attrVal != "" {
-			attrVal = ctx.normalizeHrefLink(attrVal)
-			// Don't print link href if it matches link element content or if the link is empty.
-			if !ctx.options.OmitLinks && attrVal != "" && linkText != attrVal {
-				hrefLink = "( " + attrVal + " )"
-			}
-		}
-
-		return ctx.emit(hrefLink)
-
-	case atom.P, atom.Ul:
-		return ctx.paragraphHandler(node)
-
-	case atom.Table, atom.Tfoot, atom.Th, atom.Tr, atom.Td:
-		if ctx.options.PrettyTables {
-			return ctx.handleTableElement(node)
-		} else if node.DataAtom == atom.Table {
-			return ctx.paragraphHandler(node)
-		}
-		return ctx.traverseChildren(node)
-
-	case atom.Pre:
-		ctx.isPre = true
-		err := ctx.traverseChildren(node)
-		ctx.isPre = false
-		return err
-
-	case atom.Style, atom.Script, atom.Head:
-		// Ignore the subtree.
-		return nil
-
-	default:
-		return ctx.traverseChildren(node)
-	}
-}
-
-// paragraphHandler renders node children surrounded by double newlines.
-func (ctx *textifyTraverseContext) paragraphHandler(node *html.Node) error {
-	if err := ctx.emit("\n\n"); err != nil {
-		return err
-	}
-	if err := ctx.traverseChildren(node); err != nil {
-		return err
-	}
-	return ctx.emit("\n\n")
-}
-
-// handleTableElement is only to be invoked when options.PrettyTables is active.
-func (ctx *textifyTraverseContext) handleTableElement(node *html.Node) error {
-	if !ctx.options.PrettyTables {
-		panic("handleTableElement invoked when PrettyTables not active")
-	}
-
-	switch node.DataAtom {
-	case atom.Table:
-		if err := ctx.emit("\n\n"); err != nil {
-			return err
-		}
-
-		// Re-intialize all table context.
-		ctx.tableCtx.init()
-
-		// Browse children, enriching context with table data.
-		if err := ctx.traverseChildren(node); err != nil {
-			return err
-		}
-
-		buf := &bytes.Buffer{}
-		table := tablewriter.NewWriter(buf)
-		table.SetHeader(ctx.tableCtx.header)
-		table.SetFooter(ctx.tableCtx.footer)
-		table.AppendBulk(ctx.tableCtx.body)
-
-		// Render the table using ASCII.
-		table.Render()
-		if err := ctx.emit(buf.String()); err != nil {
-			return err
-		}
-
-		return ctx.emit("\n\n")
-
-	case atom.Tfoot:
-		ctx.tableCtx.isInFooter = true
-		if err := ctx.traverseChildren(node); err != nil {
-			return err
-		}
-		ctx.tableCtx.isInFooter = false
-
-	case atom.Tr:
-		ctx.tableCtx.body = append(ctx.tableCtx.body, []string{})
-		if err := ctx.traverseChildren(node); err != nil {
-			return err
-		}
-		ctx.tableCtx.tmpRow++
-
-	case atom.Th:
-		res, err := ctx.renderEachChild(node)
-		if err != nil {
-			return err
-		}
-
-		ctx.tableCtx.header = append(ctx.tableCtx.header, res)
-
-	case atom.Td:
-		res, err := ctx.renderEachChild(node)
-		if err != nil {
-			return err
-		}
-
-		if ctx.tableCtx.isInFooter {
-			ctx.tableCtx.footer = append(ctx.tableCtx.footer, res)
-		} else {
-			ctx.tableCtx.body[ctx.tableCtx.tmpRow] = append(ctx.tableCtx.body[ctx.tableCtx.tmpRow], res)
-		}
-
-	}
-	return nil
-}
-
-func (ctx *textifyTraverseContext) traverse(node *html.Node) error {
-	switch node.Type {
-	default:
-		return ctx.traverseChildren(node)
-
-	case html.TextNode:
-		var data string
-		if ctx.isPre {
-			data = node.Data
-		} else {
-			data = strings.Trim(spacingRe.ReplaceAllString(node.Data, " "), " ")
-		}
-		return ctx.emit(data)
-
-	case html.ElementNode:
-		return ctx.handleElement(node)
-	}
-}
-
-func (ctx *textifyTraverseContext) traverseChildren(node *html.Node) error {
-	for c := node.FirstChild; c != nil; c = c.NextSibling {
-		if err := ctx.traverse(c); err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
-func (ctx *textifyTraverseContext) emit(data string) error {
-	if data == "" {
-		return nil
-	}
-	var (
-		lines = ctx.breakLongLines(data)
-		err   error
-	)
-	for _, line := range lines {
-		runes := []rune(line)
-		startsWithSpace := unicode.IsSpace(runes[0])
-		if !startsWithSpace && !ctx.endsWithSpace && !strings.HasPrefix(data, ".") {
-			if err = ctx.buf.WriteByte(' '); err != nil {
-				return err
-			}
-			ctx.lineLength++
-		}
-		ctx.endsWithSpace = unicode.IsSpace(runes[len(runes)-1])
-		for _, c := range line {
-			if _, err = ctx.buf.WriteString(string(c)); err != nil {
-				return err
-			}
-			ctx.lineLength++
-			if c == '\n' {
-				ctx.lineLength = 0
-				if ctx.prefix != "" {
-					if _, err = ctx.buf.WriteString(ctx.prefix); err != nil {
-						return err
-					}
-				}
-			}
-		}
-	}
-	return nil
-}
-
-const maxLineLen = 74
-
-func (ctx *textifyTraverseContext) breakLongLines(data string) []string {
-	// Only break lines when in blockquotes.
-	if ctx.blockquoteLevel == 0 {
-		return []string{data}
-	}
-	var (
-		ret      = []string{}
-		runes    = []rune(data)
-		l        = len(runes)
-		existing = ctx.lineLength
-	)
-	if existing >= maxLineLen {
-		ret = append(ret, "\n")
-		existing = 0
-	}
-	for l+existing > maxLineLen {
-		i := maxLineLen - existing
-		for i >= 0 && !unicode.IsSpace(runes[i]) {
-			i--
-		}
-		if i == -1 {
-			// No spaces, so go the other way.
-			i = maxLineLen - existing
-			for i < l && !unicode.IsSpace(runes[i]) {
-				i++
-			}
-		}
-		ret = append(ret, string(runes[:i])+"\n")
-		for i < l && unicode.IsSpace(runes[i]) {
-			i++
-		}
-		runes = runes[i:]
-		l = len(runes)
-		existing = 0
-	}
-	if len(runes) > 0 {
-		ret = append(ret, string(runes))
-	}
-	return ret
-}
-
-func (ctx *textifyTraverseContext) normalizeHrefLink(link string) string {
-	link = strings.TrimSpace(link)
-	link = strings.TrimPrefix(link, "mailto:")
-	return link
-}
-
-// renderEachChild visits each direct child of a node and collects the sequence of
-// textuual representaitons separated by a single newline.
-func (ctx *textifyTraverseContext) renderEachChild(node *html.Node) (string, error) {
-	buf := &bytes.Buffer{}
-	for c := node.FirstChild; c != nil; c = c.NextSibling {
-		s, err := FromHTMLNode(c, ctx.options)
-		if err != nil {
-			return "", err
-		}
-		if _, err = buf.WriteString(s); err != nil {
-			return "", err
-		}
-		if c.NextSibling != nil {
-			if err = buf.WriteByte('\n'); err != nil {
-				return "", err
-			}
-		}
-	}
-	return buf.String(), nil
-}
-
-func getAttrVal(node *html.Node, attrName string) string {
-	for _, attr := range node.Attr {
-		if attr.Key == attrName {
-			return attr.Val
-		}
-	}
-
-	return ""
-}