package html
import (
"bytes"
"io"
"github.com/gomarkdown/markdown/ast"
"github.com/gomarkdown/markdown/parser"
)
// EscapeHTMLCallouts writes html-escaped d to w. It escapes &, <, > and " characters, *but*
// expands callouts <> with the callout HTML, i.e. by calling r.callout() with a newly created
// ast.Callout node.
func (r *Renderer) EscapeHTMLCallouts(w io.Writer, d []byte) {
ld := len(d)
Parse:
for i := 0; i < ld; i++ {
for _, comment := range r.opts.Comments {
if !bytes.HasPrefix(d[i:], comment) {
break
}
lc := len(comment)
if i+lc < ld {
if id, consumed := parser.IsCallout(d[i+lc:]); consumed > 0 {
// We have seen a callout
callout := &ast.Callout{ID: id}
r.callout(w, callout)
i += consumed + lc - 1
continue Parse
}
}
}
escSeq := Escaper[d[i]]
if escSeq != nil {
w.Write(escSeq)
} else {
w.Write([]byte{d[i]})
}
}
}