X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/sod/blobdiff_plain/a6ec8b3f5bd19ad4a2a6fc950639cdff196eea2c..e38e83673b59b89d7af42f4c3f177aa0f6eafeb5:/doc/parsing.tex

diff --git a/doc/parsing.tex b/doc/parsing.tex
index 17f0ecb..cd0e12f 100644
--- a/doc/parsing.tex
+++ b/doc/parsing.tex
@@ -252,6 +252,7 @@ Some scanners support an additional \emph{place-capture} protocol which
 allows rewinding the scanner to an earlier point in the input so that it can
 be scanned again.
 
+
 \subsection{Basic scanner protocol} \label{sec:parsing.scanner.basic}
 
 The basic protocol supports stepping the scanner forward through its input
@@ -272,6 +273,7 @@ sequence, and detecting the end of the sequence.
   step the scanner.
 \end{describe}
 
+
 \subsection{Place-capture scanner protocol} \label{sec:parsing.scanner.place}
 
 The place-capture protocol allows rewinding to an earlier point in the
@@ -319,6 +321,7 @@ the scanner and read that data again.  Therefore it's possible to
   return values are the values of the final @<form>.
 \end{describe}
 
+
 \subsection{Scanner file-location protocol} \label{sec:parsing.scanner.floc}
 
 Some scanners participate in the file-location protocol
@@ -352,6 +355,7 @@ here.
   return nil.
 \end{describe*}
 
+
 \subsection{Character scanners} \label{sec:parsing.scanner.char}
 
 Character scanners are scanners which read sequences of characters.
@@ -412,6 +416,7 @@ operations to the sequence of characters held by a character scanner.
   character scanner protocols is suitable.  See @|make-scanner-stream|.
 \end{describe}
 
+
 \subsection{String scanners} \label{sec:parsing.scanner.string}
 
 A \emph{string scanner} is a simple kind of character scanner which reads
@@ -436,6 +441,7 @@ and place-capture protocols.
   to the end of the @<string>).
 \end{describe}
 
+
 \subsection{Character buffer scanners} \label{sec:parsing.scanner.charbuf}
 
 A \emph{character buffer scanner}, or \emph{charbuf scanner} for short, is an
@@ -500,6 +506,7 @@ file-location protocols.
   at least once, or with $@<used> > @<start>$.
 \end{describe}
 
+
 \subsection{Token scanners} \label{sec:parsing.scanner.token}
 
 \begin{describe}{cls}
@@ -522,6 +529,7 @@ file-location protocols.
     {token-scanner-place-p @<value> @> @<generalized-boolean>}
 \end{describe}
 
+
 \subsection{List scanners}
 
 \begin{describe}{ty}{list-scanner}