Fix nits in the lexical analysis section: \u requires four digits, backtick is not allowed in source in 3.x.
diff --git a/Doc/reference/lexical_analysis.rst b/Doc/reference/lexical_analysis.rst
index 7df0c2b..11b99f0 100644
--- a/Doc/reference/lexical_analysis.rst
+++ b/Doc/reference/lexical_analysis.rst
@@ -512,13 +512,13 @@
(4)
Individual code units which form parts of a surrogate pair can be encoded using
- this escape sequence. Unlike in Standard C, exactly two hex digits are required.
+ this escape sequence. Exactly four hex digits are required.
(5)
Any Unicode character can be encoded this way, but characters outside the Basic
Multilingual Plane (BMP) will be encoded using a surrogate pair if Python is
- compiled to use 16-bit code units (the default). Individual code units which
- form parts of a surrogate pair can be encoded using this escape sequence.
+ compiled to use 16-bit code units (the default). Exactly eight hex digits
+ are required.
.. index:: unrecognized escape sequence
@@ -700,4 +700,4 @@
The following printing ASCII characters are not used in Python. Their
occurrence outside string literals and comments is an unconditional error::
- $ ?
+ $ ? `