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-rw-r--r--Doc/lib/libstdtypes.tex3
1 files changed, 2 insertions, 1 deletions
diff --git a/Doc/lib/libstdtypes.tex b/Doc/lib/libstdtypes.tex
index 2b87159..ed0c4d9 100644
--- a/Doc/lib/libstdtypes.tex
+++ b/Doc/lib/libstdtypes.tex
@@ -670,10 +670,11 @@ Return a copy of the string converted to uppercase.
\subsubsection{String Formatting Operations \label{typesseq-strings}}
-\index{formatting, string}
+\index{formatting, string (\%{})}
\index{string!formatting}
\index{printf-style formatting}
\index{sprintf-style formatting}
+\index{\protect\%{} formatting}
String and Unicode objects have one unique built-in operation: the
\code{\%} operator (modulo). Given \code{\var{format} \%