diff options
Diffstat (limited to 'hasp')
| -rw-r--r-- | hasp/main.go | 91 | 
1 files changed, 0 insertions, 91 deletions
diff --git a/hasp/main.go b/hasp/main.go deleted file mode 100644 index dd2ba7a..0000000 --- a/hasp/main.go +++ /dev/null @@ -1,91 +0,0 @@ -// Program hasp is a preprocessor for libasciidoc to make it understand -// two-line/underlined titles, intended to be used in Gitea. -package main - -import ( -	"bytes" -	"encoding/xml" -	"io" -	"io/ioutil" -	"os" -	"strings" -	"unicode" -	"unicode/utf8" - -	"github.com/bytesparadise/libasciidoc" -	"github.com/bytesparadise/libasciidoc/pkg/configuration" -) - -// isTitle returns the title level if the lines seem to form a title, -// zero otherwise. Input lines may inclide trailing newlines. -func isTitle(line1, line2 []byte) int { -	// This is a very naïve method, we should target graphemes (thus at least -	// NFC normalize the lines first) and account for wide characters. -	diff := utf8.RuneCount(line1) - utf8.RuneCount(line2) -	if len(line2) < 2 || diff < -1 || diff > 1 { -		return 0 -	} - -	// "Don't be fooled by back-to-back delimited blocks." -	// Still gets fooled by other things, though. -	if bytes.IndexFunc(line1, func(r rune) bool { -		return unicode.IsLetter(r) || unicode.IsNumber(r) -	}) < 0 { -		return 0 -	} - -	// The underline must be homogenous. -	for _, r := range bytes.TrimRight(line2, "\r\n") { -		if r != line2[0] { -			return 0 -		} -	} -	return 1 + strings.IndexByte("=-~^+", line2[0]) -} - -func writeLine(w *io.PipeWriter, cur, next []byte) []byte { -	if level := isTitle(cur, next); level > 0 { -		w.Write(append(bytes.Repeat([]byte{'='}, level), ' ')) -		next = nil -	} -	w.Write(cur) -	return next -} - -// ConvertTitles converts AsciiDoc two-line (underlined) titles to single-line. -func ConvertTitles(w *io.PipeWriter, input []byte) { -	var last []byte -	for _, cur := range bytes.SplitAfter(input, []byte{'\n'}) { -		last = writeLine(w, last, cur) -	} -	writeLine(w, last, nil) -} - -func main() { -	input, err := ioutil.ReadAll(os.Stdin) -	if err != nil { -		panic(err) -	} - -	pr, pw := io.Pipe() -	go func() { -		defer pw.Close() -		ConvertTitles(pw, input) -	}() - -	// io.Copy(os.Stdout, pr) -	// return - -	config := configuration.NewConfiguration( -		configuration.WithHeaderFooter(true)) -	_, err = libasciidoc.ConvertToHTML(pr, os.Stdout, config) -	if err != nil { -		// Fallback: output all the text sanitized for direct inclusion. -		os.Stdout.WriteString("<pre>") -		for _, line := range bytes.Split(input, []byte{'\n'}) { -			xml.EscapeText(os.Stdout, line) -			os.Stdout.WriteString("\n") -		} -		os.Stdout.WriteString("</pre>") -	} -}  | 
