71 lines
1.8 KiB
Go
71 lines
1.8 KiB
Go
package blorg
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import (
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"reflect"
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"regexp"
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"strings"
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"github.com/alecthomas/chroma/v2"
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"github.com/alecthomas/chroma/v2/formatters/html"
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"github.com/alecthomas/chroma/v2/lexers"
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"github.com/alecthomas/chroma/v2/styles"
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"github.com/niklasfasching/go-org/org"
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)
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var snakeCaseRegexp = regexp.MustCompile(`(^[A-Za-z])|_([A-Za-z])`)
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var whitespaceRegexp = regexp.MustCompile(`\s+`)
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var nonWordCharRegexp = regexp.MustCompile(`[^\w-]`)
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func toMap(bufferSettings map[string]string, x interface{}) map[string]interface{} {
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m := map[string]interface{}{}
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for k, v := range bufferSettings {
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k = toCamelCase(k)
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if strings.HasSuffix(k, "[]") {
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m[k[:len(k)-2]] = strings.Fields(v)
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} else {
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m[k] = v
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}
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}
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if x == nil {
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return m
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}
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v := reflect.ValueOf(x).Elem()
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for i := 0; i < v.NumField(); i++ {
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m[v.Type().Field(i).Name] = v.Field(i).Interface()
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}
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return m
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}
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func toCamelCase(s string) string {
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return snakeCaseRegexp.ReplaceAllStringFunc(strings.ToLower(s), func(s string) string {
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return strings.ToUpper(strings.Replace(s, "_", "", -1))
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})
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}
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func slugify(s string) string {
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s = strings.ToLower(s)
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s = whitespaceRegexp.ReplaceAllString(s, "-")
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s = nonWordCharRegexp.ReplaceAllString(s, "")
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return strings.Trim(s, "-")
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}
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func getWriter() org.Writer {
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w := org.NewHTMLWriter()
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w.HighlightCodeBlock = highlightCodeBlock
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return w
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}
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func highlightCodeBlock(source, lang string, inline bool) string {
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var w strings.Builder
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l := lexers.Get(lang)
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if l == nil {
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l = lexers.Fallback
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}
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l = chroma.Coalesce(l)
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it, _ := l.Tokenise(nil, source)
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_ = html.New().Format(&w, styles.Get("github"), it)
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if inline {
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return `<div class="highlight-inline">` + "\n" + w.String() + "\n" + `</div>`
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}
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return `<div class="highlight">` + "\n" + w.String() + "\n" + `</div>`
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}
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