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1 files changed, 17 insertions, 0 deletions
diff --git a/mdoclint.1 b/mdoclint.1
index 1cfc0fb2..2be01323 100644
--- a/mdoclint.1
+++ b/mdoclint.1
@@ -100,6 +100,8 @@ When rewinding the scope of a block macro, forces the compiler to ignore
scope violations. This can seriously mangle the resulting tree.
.It Fl f Ns Ar ign-escape
Ignore invalid escape sequences.
+.It Fl f Ns Ar ign-macro
+Ignore unknown macros at the start of input lines.
.El
.\" PARAGRAPH
.Pp
@@ -110,6 +112,21 @@ flag, multiple
options may be grouped and delimited with a comma. Using
.Fl f Ns Ar ign-scope,ign-escape ,
for example, will try to ignore scope and character-escape errors.
+.\" SUB-SECTION
+.Ss Input Encoding
+The
+.Nm
+utility expects its input to be 7-bit ASCII as defined in
+.Xr ascii 7 .
+The only non-graphing characters accepted are spaces,
+.Sq \ ,
+and tabs,
+.Sq \et .
+Tabs are only accepted in literal block-displays and as column
+delimiters.
+.Pp
+Only Unix-style newlines (\en) are accepted; if the newline is escaped,
+the line is concatenated with the next.
.\" SECTION
.Sh EXAMPLES
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