Fix printing of header when NUL byte is in the list

arp242 · arp242 · commit c48dd0178664 · 2025-06-26T20:58:50.000+01:00
NUL byte is 0, and header also got added as 0: so it would sometimes
sort after the NUL byte. rune is int32, so can add header as -1,
ensuring it's always on top.
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -3,6 +3,9 @@
 - Fix sorting of `print` and `search` with a custom `-format` flag which didn't
   include `%(dec)`.
 
+- Sometimes the would be printed on the second line instead of the first when
+  printing everything or control characters.
+
 - Recognize `c:[cat-name]` to print a category.
 
 ### v2.8.0 (2024-09-11)
diff --git a/format.go b/format.go
@@ -138,7 +138,7 @@ func NewFormat(format string, as printAs, knownCols ...string) (*Format, error)
 	h["tab"] = tabOrSpace()
 
 	if as == printAsList {
-		f.Line(0, h)
+		f.Line(-1, h)
 	}
 
 	// TODO: is this actually faster than just .*?

Original file line number	Diff line number	Diff line change
`@@ -138,7 +138,7 @@ func NewFormat(format string, as printAs, knownCols ...string) (*Format, error)`
`138`	`138`	`h["tab"] = tabOrSpace()`
`139`	`139`
`140`	`140`	`if as == printAsList {`
`141`		`- f.Line(0, h)`
	`141`	`+ f.Line(-1, h)`
`142`	`142`	`}`
`143`	`143`
`144`	`144`	`// TODO: is this actually faster than just .*?`