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Disable syntax guessing for PygmentsCodeFences #2034

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Disable syntax guessing for PygmentsCodeFences #2034

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1 change: 1 addition & 0 deletions commands/hugo.go
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Expand Up @@ -309,6 +309,7 @@ func loadDefaultSettings() {
viper.SetDefault("DisablePathToLower", false)
viper.SetDefault("HasCJKLanguage", false)
viper.SetDefault("EnableEmoji", false)
viper.SetDefault("PygmentsCodeFencesGuessSyntax", false)
}

// InitializeConfig initializes a config file with sensible default configuration flags.
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2 changes: 2 additions & 0 deletions docs/content/overview/configuration.md
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Expand Up @@ -126,6 +126,8 @@ Following is a list of Hugo-defined variables that you can configure and their c
preserveTaxonomyNames: false
# filesystem path to write files to
publishdir: "public"
# enables syntax guessing for code fences without specified language
pygmentsCodeFencesGuessSyntax: false
# color-codes for highlighting derived from this style
pygmentsStyle: "monokai"
# true: use pygments-css or false: color-codes directly
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4 changes: 2 additions & 2 deletions helpers/content_renderer.go
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Expand Up @@ -35,7 +35,7 @@ type HugoHTMLRenderer struct {
}

func (renderer *HugoHTMLRenderer) BlockCode(out *bytes.Buffer, text []byte, lang string) {
if viper.GetBool("PygmentsCodeFences") {
if viper.GetBool("PygmentsCodeFences") && (lang != "" || viper.GetBool("PygmentsCodeFencesGuessSyntax")) {
opts := viper.GetString("PygmentsOptions")
str := html.UnescapeString(string(text))
out.WriteString(Highlight(str, lang, opts))
Expand Down Expand Up @@ -78,7 +78,7 @@ type HugoMmarkHTMLRenderer struct {
}

func (renderer *HugoMmarkHTMLRenderer) BlockCode(out *bytes.Buffer, text []byte, lang string, caption []byte, subfigure bool, callouts bool) {
if viper.GetBool("PygmentsCodeFences") {
if viper.GetBool("PygmentsCodeFences") && (lang != "" || viper.GetBool("PygmentsCodeFencesGuessSyntax")) {
str := html.UnescapeString(string(text))
out.WriteString(Highlight(str, lang, ""))
} else {
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