Better null char handling

cmd/gendocs.go

@@ -24,7 +24,11 @@ func gendocCommand() *cli.Command {
 				text, _ = c.App.ToMarkdown()
 				text = addDepthToMd(strings.NewReader(text), 1)
 			}
-			fmt.Print(strings.ReplaceAll(text, "\x00", "")) //HACK: Some null characters are in generated docs (from array sep?)
+
+			// HACK: Some null characters are in generated docs (from array sep?)
+			// Normal cli help accounts for this, but markdown gen doesn't
+			fmt.Print(strings.ReplaceAll(text, "\x00", "\\x00"))
+
 			return nil
 		},
 		Flags: []cli.Flag{

docs/cli-help.md

@@ -165,7 +165,7 @@ Create a 2D heatmap of extracted data
 
 **--csv, -o**="": Write final results to csv. Use - to output to stdout
 
-**--delim**="": Character to tabulate on. Use {$} helper by default (default: )
+**--delim**="": Character to tabulate on. Use {$} helper by default (default: \x00)
 
 **--extract, -e**="": Expression that will generate the key to group by. Specify multiple times for multi-dimensions or use {$} helper (default: [{0}])
 
@@ -311,7 +311,7 @@ Create a 2D summarizing table of extracted data
 
 **--csv, -o**="": Write final results to csv. Use - to output to stdout
 
-**--delim**="": Character to tabulate on. Use {$} helper by default (default: )
+**--delim**="": Character to tabulate on. Use {$} helper by default (default: \x00)
 
 **--extra, -x**: Display row and column totals