96 lines
2 KiB
Go
96 lines
2 KiB
Go
package convert
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import (
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"io"
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"os"
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"path/filepath"
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"strings"
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"github.com/gomarkdown/markdown"
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"github.com/gomarkdown/markdown/html"
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"github.com/gomarkdown/markdown/parser"
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)
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// This function takes a Markdown document and returns an HTML document.
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func MdToHTML(md []byte) ([]byte, error) {
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// create parser with extensions
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extensions := parser.CommonExtensions | parser.AutoHeadingIDs | parser.NoEmptyLineBeforeBlock
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p := parser.NewWithExtensions(extensions)
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doc := p.Parse(md)
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// build HTML renderer
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htmlFlags := html.CommonFlags | html.HrefTargetBlank
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opts := html.RendererOptions{Flags: htmlFlags}
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renderer := html.NewRenderer(opts)
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return markdown.Render(doc, renderer), nil
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}
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// WriteFile writes a given byte array to the given path.
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func WriteFile(b []byte, p string) error {
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f, err := os.Create(p)
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if err != nil {
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return err
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}
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_, err = f.Write(b)
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defer f.Close()
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if err != nil {
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return err
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}
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return nil
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}
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// ReadFile reads a byte array from a given path.
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func ReadFile(p string) ([]byte, error) {
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f, err := os.Open(p)
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if err != nil {
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return nil, err
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}
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var result []byte
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buf := make([]byte, 1024)
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for {
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n, err := f.Read(buf)
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// check for a non EOF error
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if err != nil && err != io.EOF {
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return nil, err
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}
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// n==0 when there are no chunks left to read
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if n == 0 {
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defer f.Close()
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break
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}
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result = append(result, buf[:n]...)
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}
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return result, nil
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}
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// CopyFile reads the file at the input path, and write
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// it to the output path.
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func CopyFile(inPath string, outPath string) error {
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inB, err := ReadFile(inPath)
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if err != nil {
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return err
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}
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if err := WriteFile(inB, outPath); err != nil {
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return err
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} else {
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return nil
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}
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}
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func ConvertFile(in string, out string) error {
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md, err := ReadFile(in)
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if err != nil {
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return err
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}
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html, err := MdToHTML(md)
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if err != nil {
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return err
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}
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err = WriteFile(html, out)
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return err
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}
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func ChangeExtension(in string, outExt string) string {
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return strings.TrimSuffix(in, filepath.Ext(in)) + outExt
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}
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