bpo-35054: Add yet more index entries for symbols. (GH-10121)

23 files changed, 140 insertions, 94 deletions

diff --git a/Doc/library/argparse.rst b/Doc/library/argparse.rst
index 1973afc..cef197f 100644
--- a/Doc/library/argparse.rst
+++ b/Doc/library/argparse.rst
@@ -844,6 +844,8 @@ values are:
   Note that ``nargs=1`` produces a list of one item.  This is different from
   the default, in which the item is produced by itself.
 
+.. index:: single: ? (question mark); in argparse module
+
 * ``'?'``. One argument will be consumed from the command line if possible, and
   produced as a single item.  If no command-line argument is present, the value from
   default_ will be produced.  Note that for optional arguments, there is an
@@ -876,6 +878,8 @@ values are:
      Namespace(infile=<_io.TextIOWrapper name='<stdin>' encoding='UTF-8'>,
                outfile=<_io.TextIOWrapper name='<stdout>' encoding='UTF-8'>)
 
+.. index:: single: * (asterisk); in argparse module
+
 * ``'*'``.  All command-line arguments present are gathered into a list.  Note that
   it generally doesn't make much sense to have more than one positional argument
   with ``nargs='*'``, but multiple optional arguments with ``nargs='*'`` is
@@ -888,6 +892,8 @@ values are:
      >>> parser.parse_args('a b --foo x y --bar 1 2'.split())
      Namespace(bar=['1', '2'], baz=['a', 'b'], foo=['x', 'y'])
 
+.. index:: single: + (plus); in argparse module
+
 * ``'+'``. Just like ``'*'``, all command-line args present are gathered into a
   list.  Additionally, an error message will be generated if there wasn't at
   least one command-line argument present.  For example::
diff --git a/Doc/library/ast.rst b/Doc/library/ast.rst
index 97ce2f5..2883f3c 100644
--- a/Doc/library/ast.rst
+++ b/Doc/library/ast.rst
@@ -41,6 +41,9 @@ Node classes
    with alternatives (aka "sums"), the left-hand side class is abstract: only
    instances of specific constructor nodes are ever created.
 
+   .. index:: single: ? (question mark); in AST grammar
+   .. index:: single: * (asterisk); in AST grammar
+
    .. attribute:: _fields
 
       Each concrete class has an attribute :attr:`_fields` which gives the names
diff --git a/Doc/library/cmd.rst b/Doc/library/cmd.rst
index 3b4a8ff..d57edb7 100644
--- a/Doc/library/cmd.rst
+++ b/Doc/library/cmd.rst
@@ -61,6 +61,10 @@ A :class:`Cmd` instance has the following methods:
 
    An end-of-file on input is passed back as the string ``'EOF'``.
 
+   .. index::
+      single: ? (question mark); in a command interpreter
+      single: ! (exclamation); in a command interpreter
+
    An interpreter instance will recognize a command name ``foo`` if and only if it
    has a method :meth:`do_foo`.  As a special case, a line beginning with the
    character ``'?'`` is dispatched to the method :meth:`do_help`.  As another
diff --git a/Doc/library/codecs.rst b/Doc/library/codecs.rst
index b323ab5..65f41f6 100644
--- a/Doc/library/codecs.rst
+++ b/Doc/library/codecs.rst
@@ -312,6 +312,14 @@ defined and implemented by all standard Python codecs:
 The following error handlers are only applicable to
 :term:`text encodings <text encoding>`:
 
+.. index::
+   single: ? (question mark); replacement character
+   single: \ (backslash); escape sequence
+   single: \x; escape sequence
+   single: \u; escape sequence
+   single: \U; escape sequence
+   single: \N; escape sequence
+
 +-------------------------+-----------------------------------------------+
 | Value                   | Meaning                                       |
 +=========================+===============================================+
diff --git a/Doc/library/configparser.rst b/Doc/library/configparser.rst
index 1a5417f..efafd63 100644
--- a/Doc/library/configparser.rst
+++ b/Doc/library/configparser.rst
@@ -295,7 +295,7 @@ On top of the core functionality, :class:`ConfigParser` supports
 interpolation.  This means values can be preprocessed before returning them
 from ``get()`` calls.
 
-.. index:: single: %; interpolation in configuration files
+.. index:: single: % (percent); interpolation in configuration files
 
 .. class:: BasicInterpolation()
 
@@ -325,7 +325,7 @@ from ``get()`` calls.
    ``%(my_dir)s/Pictures`` as the value of ``my_pictures`` and
    ``%(home_dir)s/lumberjack`` as the value of ``my_dir``.
 
-.. index:: single: $; interpolation in configuration files
+.. index:: single: $ (dollar); interpolation in configuration files
 
 .. class:: ExtendedInterpolation()
 
diff --git a/Doc/library/curses.ascii.rst b/Doc/library/curses.ascii.rst
index 04b2a26..a69dbb2 100644
--- a/Doc/library/curses.ascii.rst
+++ b/Doc/library/curses.ascii.rst
@@ -207,6 +207,10 @@ The following function takes either a single-character string or integer value;
 it returns a string.
 
 
+.. index::
+   single: ^ (caret); in curses module
+   single: ! (exclamation); in curses module
+
 .. function:: unctrl(c)
 
    Return a string representation of the ASCII character *c*.  If *c* is printable,
diff --git a/Doc/library/datetime.rst b/Doc/library/datetime.rst
index e7a0fdb..a1a60b0 100644
--- a/Doc/library/datetime.rst
+++ b/Doc/library/datetime.rst
@@ -2000,7 +2000,7 @@ Class attributes:
 
 
 .. index::
-   single: %; datetime format
+   single: % (percent); datetime format
 
 .. _strftime-strptime-behavior:
 
diff --git a/Doc/library/doctest.rst b/Doc/library/doctest.rst
index 9988429..e7c0033 100644
--- a/Doc/library/doctest.rst
+++ b/Doc/library/doctest.rst
@@ -485,7 +485,7 @@ Some details you should read once, but won't need to remember:
   to test a :exc:`SyntaxError` that omits the traceback header, you will need to
   manually add the traceback header line to your test example.
 
-.. index:: single: ^; caret
+.. index:: single: ^ (caret); marker
 
 * For some :exc:`SyntaxError`\ s, Python displays the character position of the
   syntax error, using a ``^`` marker::
@@ -695,9 +695,9 @@ useful unless you intend to extend :mod:`doctest` internals via subclassing:
 
 
 .. index::
-   single: #; in doctests
-   single: +; in doctests
-   single: -; in doctests
+   single: # (hash); in doctests
+   single: + (plus); in doctests
+   single: - (minus); in doctests
 .. _doctest-directives:
 
 Directives
diff --git a/Doc/library/fnmatch.rst b/Doc/library/fnmatch.rst
index abf9523..ecba4aa 100644
--- a/Doc/library/fnmatch.rst
+++ b/Doc/library/fnmatch.rst
@@ -16,6 +16,13 @@ This module provides support for Unix shell-style wildcards, which are *not* the
 same as regular expressions (which are documented in the :mod:`re` module).  The
 special characters used in shell-style wildcards are:
 
+.. index::
+   single: * (asterisk); in glob-style wildcards
+   single: ? (question mark); in glob-style wildcards
+   single: [] (square brackets); in glob-style wildcards
+   single: ! (exclamation); in glob-style wildcards
+   single: - (minus); in glob-style wildcards
+
 +------------+------------------------------------+
 | Pattern    | Meaning                            |
 +============+====================================+
diff --git a/Doc/library/gettext.rst b/Doc/library/gettext.rst
index 0a9456a..ef315e0 100644
--- a/Doc/library/gettext.rst
+++ b/Doc/library/gettext.rst
@@ -63,7 +63,7 @@ class-based API instead.
    *domain*, which is returned.
 
 
-.. index:: single: _; gettext
+.. index:: single: _ (underscore); gettext
 .. function:: gettext(message)
 
    Return the localized translation of *message*, based on the current global
diff --git a/Doc/library/glob.rst b/Doc/library/glob.rst
index 25bd4b7..0db10b5 100644
--- a/Doc/library/glob.rst
+++ b/Doc/library/glob.rst
@@ -10,6 +10,14 @@
 
 --------------
 
+.. index::
+   single: * (asterisk); in glob-style wildcards
+   single: ? (question mark); in glob-style wildcards
+   single: [] (square brackets); in glob-style wildcards
+   single: ! (exclamation); in glob-style wildcards
+   single: - (minus); in glob-style wildcards
+   single: . (dot); in glob-style wildcards
+
 The :mod:`glob` module finds all the pathnames matching a specified pattern
 according to the rules used by the Unix shell, although results are returned in
 arbitrary order.  No tilde expansion is done, but ``*``, ``?``, and character
@@ -36,6 +44,9 @@ For example, ``'[?]'`` matches the character ``'?'``.
    :file:`../../Tools/\*/\*.gif`), and can contain shell-style wildcards. Broken
    symlinks are included in the results (as in the shell).
 
+   .. index::
+      single: **; in glob-style wildcards
+
    If *recursive* is true, the pattern "``**``" will match any files and zero or
    more directories and subdirectories.  If the pattern is followed by an
    ``os.sep``, only directories and subdirectories match.
diff --git a/Doc/library/os.path.rst b/Doc/library/os.path.rst
index 03644e2..469b262 100644
--- a/Doc/library/os.path.rst
+++ b/Doc/library/os.path.rst
@@ -160,7 +160,7 @@ the :mod:`glob` module.)
       Accepts a :term:`path-like object`.
 
 
-.. index:: single: ~; home directory expansion
+.. index:: single: ~ (tilde); home directory expansion
 
 .. function:: expanduser(path)
 
@@ -186,8 +186,8 @@ the :mod:`glob` module.)
       Accepts a :term:`path-like object`.
 
 .. index::
-   single: $; environment variables expansion
-   single: %; environment variables expansion (Windows)
+   single: $ (dollar); environment variables expansion
+   single: % (percent); environment variables expansion (Windows)
 
 .. function:: expandvars(path)
 
diff --git a/Doc/library/os.rst b/Doc/library/os.rst
index b174b9d..6a9fe36 100644
--- a/Doc/library/os.rst
+++ b/Doc/library/os.rst
@@ -4086,7 +4086,7 @@ are defined for all platforms.
 Higher-level operations on pathnames are defined in the :mod:`os.path` module.
 
 
-.. index:: single: .; in pathnames
+.. index:: single: . (dot); in pathnames
 .. data:: curdir
 
    The constant string used by the operating system to refer to the current
@@ -4102,8 +4102,8 @@ Higher-level operations on pathnames are defined in the :mod:`os.path` module.
    :mod:`os.path`.
 
 
-.. index:: single: /; in pathnames
-.. index:: single: \; in pathnames (Windows)
+.. index:: single: / (slash); in pathnames
+.. index:: single: \ (backslash); in pathnames (Windows)
 .. data:: sep
 
    The character used by the operating system to separate pathname components.
@@ -4113,7 +4113,7 @@ Higher-level operations on pathnames are defined in the :mod:`os.path` module.
    useful. Also available via :mod:`os.path`.
 
 
-.. index:: single: /; in pathnames
+.. index:: single: / (slash); in pathnames
 .. data:: altsep
 
    An alternative character used by the operating system to separate pathname
@@ -4122,14 +4122,15 @@ Higher-level operations on pathnames are defined in the :mod:`os.path` module.
    :mod:`os.path`.
 
 
-.. index:: single: .; in pathnames
+.. index:: single: . (dot); in pathnames
 .. data:: extsep
 
    The character which separates the base filename from the extension; for example,
    the ``'.'`` in :file:`os.py`. Also available via :mod:`os.path`.
 
 
-.. index:: single: :; path separator (POSIX)
+.. index:: single: : (colon); path separator (POSIX)
+   single: ; (semicolon)
 .. data:: pathsep
 
    The character conventionally used by the operating system to separate search
diff --git a/Doc/library/re.rst b/Doc/library/re.rst
index 57d7402..31fb628 100644
--- a/Doc/library/re.rst
+++ b/Doc/library/re.rst
@@ -93,20 +93,20 @@ the expression ``(?:a{6})*`` matches any multiple of six ``'a'`` characters.
 
 The special characters are:
 
-.. index:: single: .; in regular expressions
+.. index:: single: . (dot); in regular expressions
 
 ``.``
    (Dot.)  In the default mode, this matches any character except a newline.  If
    the :const:`DOTALL` flag has been specified, this matches any character
    including a newline.
 
-.. index:: single: ^; in regular expressions
+.. index:: single: ^ (caret); in regular expressions
 
 ``^``
    (Caret.)  Matches the start of the string, and in :const:`MULTILINE` mode also
    matches immediately after each newline.
 
-.. index:: single: $; in regular expressions
+.. index:: single: $ (dollar); in regular expressions
 
 ``$``
    Matches the end of the string or just before the newline at the end of the
@@ -117,21 +117,21 @@ The special characters are:
    a single ``$`` in ``'foo\n'`` will find two (empty) matches: one just before
    the newline, and one at the end of the string.
 
-.. index:: single: *; in regular expressions
+.. index:: single: * (asterisk); in regular expressions
 
 ``*``
    Causes the resulting RE to match 0 or more repetitions of the preceding RE, as
    many repetitions as are possible.  ``ab*`` will match 'a', 'ab', or 'a' followed
    by any number of 'b's.
 
-.. index:: single: +; in regular expressions
+.. index:: single: + (plus); in regular expressions
 
 ``+``
    Causes the resulting RE to match 1 or more repetitions of the preceding RE.
    ``ab+`` will match 'a' followed by any non-zero number of 'b's; it will not
    match just 'a'.
 
-.. index:: single: ?; in regular expressions
+.. index:: single: ? (question mark); in regular expressions
 
 ``?``
    Causes the resulting RE to match 0 or 1 repetitions of the preceding RE.
@@ -152,8 +152,7 @@ The special characters are:
    only ``'<a>'``.
 
 .. index::
-   single: {; in regular expressions
-   single: }; in regular expressions
+   single: {} (curly brackets); in regular expressions
 
 ``{m}``
    Specifies that exactly *m* copies of the previous RE should be matched; fewer
@@ -176,7 +175,7 @@ The special characters are:
    6-character string ``'aaaaaa'``, ``a{3,5}`` will match 5 ``'a'`` characters,
    while ``a{3,5}?`` will only match 3 characters.
 
-.. index:: single: \; in regular expressions
+.. index:: single: \ (backslash); in regular expressions
 
 ``\``
    Either escapes special characters (permitting you to match characters like
@@ -192,8 +191,7 @@ The special characters are:
    raw strings for all but the simplest expressions.
 
 .. index::
-   single: [; in regular expressions
-   single: ]; in regular expressions
+   single: [] (square brackets); in regular expressions
 
 ``[]``
    Used to indicate a set of characters.  In a set:
@@ -201,7 +199,7 @@ The special characters are:
    * Characters can be listed individually, e.g. ``[amk]`` will match ``'a'``,
      ``'m'``, or ``'k'``.
 
-   .. index:: single: -; in regular expressions
+   .. index:: single: - (minus); in regular expressions
 
    * Ranges of characters can be indicated by giving two characters and separating
      them by a ``'-'``, for example ``[a-z]`` will match any lowercase ASCII letter,
@@ -214,13 +212,13 @@ The special characters are:
      ``[(+*)]`` will match any of the literal characters ``'('``, ``'+'``,
      ``'*'``, or ``')'``.
 
-   .. index:: single: \; in regular expressions
+   .. index:: single: \ (backslash); in regular expressions
 
    * Character classes such as ``\w`` or ``\S`` (defined below) are also accepted
      inside a set, although the characters they match depends on whether
      :const:`ASCII` or :const:`LOCALE` mode is in force.
 
-   .. index:: single: ^; in regular expressions
+   .. index:: single: ^ (caret); in regular expressions
 
    * Characters that are not within a range can be matched by :dfn:`complementing`
      the set.  If the first character of the set is ``'^'``, all the characters
@@ -252,7 +250,7 @@ The special characters are:
       :exc:`FutureWarning` is raised if a character set contains constructs
       that will change semantically in the future.
 
-.. index:: single: |; in regular expressions
+.. index:: single: | (vertical bar); in regular expressions
 
 ``|``
    ``A|B``, where *A* and *B* can be arbitrary REs, creates a regular expression that
@@ -266,8 +264,7 @@ The special characters are:
    character class, as in ``[|]``.
 
 .. index::
-   single: (; in regular expressions
-   single: ); in regular expressions
+   single: () (parentheses); in regular expressions
 
 ``(...)``
    Matches whatever regular expression is inside the parentheses, and indicates the
@@ -433,7 +430,7 @@ If the ordinary character is not an ASCII digit or an ASCII letter, then the
 resulting RE will match the second character.  For example, ``\$`` matches the
 character ``'$'``.
 
-.. index:: single: \; in regular expressions
+.. index:: single: \ (backslash); in regular expressions
 
 ``\number``
    Matches the contents of the group of the same number.  Groups are numbered
@@ -719,7 +716,7 @@ form.
 .. data:: X
           VERBOSE
 
-   .. index:: single: #; in regular expressions
+   .. index:: single: # (hash); in regular expressions
 
    This flag allows you to write regular expressions that look nicer and are
    more readable by allowing you to visually separate logical sections of the
diff --git a/Doc/library/site.rst b/Doc/library/site.rst
index e6a2980..7974e20 100644
--- a/Doc/library/site.rst
+++ b/Doc/library/site.rst
@@ -50,7 +50,7 @@ the key "include-system-site-packages" set to anything other than "false"
 searched for site-packages; otherwise they won't.
 
 .. index::
-   single: #; comment
+   single: # (hash); comment
    statement: import
 
 A path configuration file is a file whose name has the form :file:`{name}.pth`
diff --git a/Doc/library/sqlite3.rst b/Doc/library/sqlite3.rst
index 9e3c56b..37087ac 100644
--- a/Doc/library/sqlite3.rst
+++ b/Doc/library/sqlite3.rst
@@ -598,6 +598,9 @@ Cursor Objects
 
    A :class:`Cursor` instance has the following attributes and methods.
 
+   .. index:: single: ? (question mark); in SQL statements
+   .. index:: single: : (colon); in SQL statements
+
    .. method:: execute(sql[, parameters])
 
       Executes an SQL statement. The SQL statement may be parameterized (i. e.
diff --git a/Doc/library/stdtypes.rst b/Doc/library/stdtypes.rst
index 381374c..4686cec 100644
--- a/Doc/library/stdtypes.rst
+++ b/Doc/library/stdtypes.rst
@@ -123,9 +123,9 @@ Comparisons
    pair: chaining; comparisons
    pair: operator; comparison
    operator: ==
-   operator: <
+   operator: < (less)
    operator: <=
-   operator: >
+   operator: > (greater)
    operator: >=
    operator: !=
    operator: is
@@ -246,16 +246,16 @@ and imaginary parts.
    builtin: int
    builtin: float
    builtin: complex
-   single: operator; +
-   single: +; unary operator
-   single: +; binary operator
-   single: operator; -
-   single: -; unary operator
-   single: -; binary operator
-   operator: *
-   operator: /
+   single: operator; + (plus)
+   single: + (plus); unary operator
+   single: + (plus); binary operator
+   single: operator; - (minus)
+   single: - (minus); unary operator
+   single: - (minus); binary operator
+   operator: * (asterisk)
+   operator: / (slash)
    operator: //
-   operator: %
+   operator: % (percent)
    operator: **
 
 Python fully supports mixed arithmetic: when a binary arithmetic operator has
@@ -391,12 +391,12 @@ Bitwise Operations on Integer Types
    pair: bitwise; operations
    pair: shifting; operations
    pair: masking; operations
-   operator: |
-   operator: ^
-   operator: &
+   operator: | (vertical bar)
+   operator: ^ (caret)
+   operator: & (ampersand)
    operator: <<
    operator: >>
-   operator: ~
+   operator: ~ (tilde)
 
 Bitwise operations only make sense for integers. The result of bitwise
 operations is calculated as though carried out in two's complement with an
@@ -2119,7 +2119,7 @@ expression support in the :mod:`re` module).
    single: string; interpolation, printf
    single: printf-style formatting
    single: sprintf-style formatting
-   single: %; printf-style formatting
+   single: % (percent); printf-style formatting
 
 .. note::
 
@@ -2148,8 +2148,7 @@ components, which must occur in this order:
 #. The ``'%'`` character, which marks the start of the specifier.
 
 .. index::
-   single: (; in printf-style formatting
-   single: ); in printf-style formatting
+   single: () (parentheses); in printf-style formatting
 
 #. Mapping key (optional), consisting of a parenthesised sequence of characters
    (for example, ``(somename)``).
@@ -2157,13 +2156,13 @@ components, which must occur in this order:
 #. Conversion flags (optional), which affect the result of some conversion
    types.
 
-.. index:: single: *; in printf-style formatting
+.. index:: single: * (asterisk); in printf-style formatting
 
 #. Minimum field width (optional).  If specified as an ``'*'`` (asterisk), the
    actual width is read from the next element of the tuple in *values*, and the
    object to convert comes after the minimum field width and optional precision.
 
-.. index:: single: .; in printf-style formatting
+.. index:: single: . (dot); in printf-style formatting
 
 #. Precision (optional), given as a ``'.'`` (dot) followed by the precision.  If
    specified as ``'*'`` (an asterisk), the actual precision is read from the next
@@ -2189,9 +2188,9 @@ sequential parameter list).
 The conversion flag characters are:
 
 .. index::
-   single: #; in printf-style formatting
-   single: -; in printf-style formatting
-   single: +; in printf-style formatting
+   single: # (hash); in printf-style formatting
+   single: - (minus); in printf-style formatting
+   single: + (plus); in printf-style formatting
    single: space; in printf-style formatting
 
 +---------+---------------------------------------------------------------------+
@@ -3256,7 +3255,7 @@ place, and instead produce new objects.
    single: bytearray; interpolation
    single: printf-style formatting
    single: sprintf-style formatting
-   single: %; printf-style formatting
+   single: % (percent); printf-style formatting
 
 .. note::
 
@@ -3283,8 +3282,7 @@ components, which must occur in this order:
 #. The ``'%'`` character, which marks the start of the specifier.
 
 .. index::
-   single: (; in printf-style formatting
-   single: ); in printf-style formatting
+   single: () (parentheses); in printf-style formatting
 
 #. Mapping key (optional), consisting of a parenthesised sequence of characters
    (for example, ``(somename)``).
@@ -3292,13 +3290,13 @@ components, which must occur in this order:
 #. Conversion flags (optional), which affect the result of some conversion
    types.
 
-.. index:: single: *; in printf-style formatting
+.. index:: single: * (asterisk); in printf-style formatting
 
 #. Minimum field width (optional).  If specified as an ``'*'`` (asterisk), the
    actual width is read from the next element of the tuple in *values*, and the
    object to convert comes after the minimum field width and optional precision.
 
-.. index:: single: .; in printf-style formatting
+.. index:: single: . (dot); in printf-style formatting
 
 #. Precision (optional), given as a ``'.'`` (dot) followed by the precision.  If
    specified as ``'*'`` (an asterisk), the actual precision is read from the next
@@ -3324,9 +3322,9 @@ sequential parameter list).
 The conversion flag characters are:
 
 .. index::
-   single: #; in printf-style formatting
-   single: -; in printf-style formatting
-   single: +; in printf-style formatting
+   single: # (hash); in printf-style formatting
+   single: - (minus); in printf-style formatting
+   single: + (plus); in printf-style formatting
    single: space; in printf-style formatting
 
 +---------+---------------------------------------------------------------------+
diff --git a/Doc/library/string.rst b/Doc/library/string.rst
index 55913f8..7ed52ab 100644
--- a/Doc/library/string.rst
+++ b/Doc/library/string.rst
@@ -193,13 +193,11 @@ related to that of :ref:`formatted string literals <f-strings>`, but
 there are differences.
 
 .. index::
-   single: {; in string formatting
-   single: }; in string formatting
-   single: .; in string formatting
-   single: [; in string formatting
-   single: ]; in string formatting
-   single: !; in string formatting
-   single: :; in string formatting
+   single: {} (curly brackets); in string formatting
+   single: . (dot); in string formatting
+   single: [] (square brackets); in string formatting
+   single: ! (exclamation); in string formatting
+   single: : (colon); in string formatting
 
 Format strings contain "replacement fields" surrounded by curly braces ``{}``.
 Anything that is not contained in braces is considered literal text, which is
@@ -333,10 +331,10 @@ affect the :func:`format` function.
 The meaning of the various alignment options is as follows:
 
    .. index::
-      single: <; in string formatting
-      single: >; in string formatting
-      single: =; in string formatting
-      single: ^; in string formatting
+      single: < (less); in string formatting
+      single: > (greater); in string formatting
+      single: = (equals); in string formatting
+      single: ^ (caret); in string formatting
 
    +---------+----------------------------------------------------------+
    | Option  | Meaning                                                  |
@@ -365,8 +363,8 @@ The *sign* option is only valid for number types, and can be one of the
 following:
 
    .. index::
-      single: +; in string formatting
-      single: -; in string formatting
+      single: + (plus); in string formatting
+      single: - (minus); in string formatting
       single: space; in string formatting
 
    +---------+----------------------------------------------------------+
@@ -383,7 +381,7 @@ following:
    +---------+----------------------------------------------------------+
 
 
-.. index:: single: #; in string formatting
+.. index:: single: # (hash); in string formatting
 
 The ``'#'`` option causes the "alternate form" to be used for the
 conversion.  The alternate form is defined differently for different
@@ -397,7 +395,7 @@ decimal-point character appears in the result of these conversions
 only if a digit follows it. In addition, for ``'g'`` and ``'G'``
 conversions, trailing zeros are not removed from the result.
 
-.. index:: single: ,; in string formatting
+.. index:: single: , (comma); in string formatting
 
 The ``','`` option signals the use of a comma for a thousands separator.
 For a locale aware separator, use the ``'n'`` integer presentation type
@@ -406,7 +404,7 @@ instead.
 .. versionchanged:: 3.1
    Added the ``','`` option (see also :pep:`378`).
 
-.. index:: single: _; in string formatting
+.. index:: single: _ (underscore); in string formatting
 
 The ``'_'`` option signals the use of an underscore for a thousands
 separator for floating point presentation types and for integer
@@ -694,7 +692,7 @@ formatting facilities in Python.  As an example of a library built on template
 strings for i18n, see the
 `flufl.i18n <http://flufli18n.readthedocs.io/en/latest/>`_ package.
 
-.. index:: single: $; in template strings
+.. index:: single: $ (dollar); in template strings
 
 Template strings support ``$``-based substitutions, using the following rules:
 
diff --git a/Doc/library/struct.rst b/Doc/library/struct.rst
index 9ba4047..1a0fd73 100644
--- a/Doc/library/struct.rst
+++ b/Doc/library/struct.rst
@@ -118,11 +118,11 @@ order, and properly aligned by skipping pad bytes if necessary (according to the
 rules used by the C compiler).
 
 .. index::
-   single: @; in struct format strings
-   single: =; in struct format strings
-   single: <; in struct format strings
-   single: >; in struct format strings
-   single: !; in struct format strings
+   single: @ (at); in struct format strings
+   single: = (equals); in struct format strings
+   single: < (less); in struct format strings
+   single: > (greater); in struct format strings
+   single: ! (exclamation); in struct format strings
 
 Alternatively, the first character of the format string can be used to indicate
 the byte order, size and alignment of the packed data, according to the
@@ -247,6 +247,8 @@ platform-dependent.
 Notes:
 
 (1)
+   .. index:: single: ? (question mark); in struct format strings
+
    The ``'?'`` conversion code corresponds to the :c:type:`_Bool` type defined by
    C99. If this type is not available, it is simulated using a :c:type:`char`. In
    standard mode, it is always represented by one byte.
@@ -329,6 +331,8 @@ are used.  Note that for :func:`unpack`, the ``'p'`` format character consumes
 ``count`` bytes, but that the string returned can never contain more than 255
 bytes.
 
+.. index:: single: ? (question mark); in struct format strings
+
 For the ``'?'`` format character, the return value is either :const:`True` or
 :const:`False`. When packing, the truth value of the argument object is used.
 Either 0 or 1 in the native or standard bool representation will be packed, and
diff --git a/Doc/library/time.rst b/Doc/library/time.rst
index d76e089..c6a1f33 100644
--- a/Doc/library/time.rst
+++ b/Doc/library/time.rst
@@ -370,7 +370,7 @@ Functions
 
 
 .. index::
-   single: %; datetime format
+   single: % (percent); datetime format
 
 .. function:: strftime(format[, t])
 
@@ -504,7 +504,7 @@ Functions
 
 
 .. index::
-   single: %; datetime format
+   single: % (percent); datetime format
 
 .. function:: strptime(string[, format])
 
diff --git a/Doc/library/tkinter.rst b/Doc/library/tkinter.rst
index d9c1c35..4af4b73 100644
--- a/Doc/library/tkinter.rst
+++ b/Doc/library/tkinter.rst
@@ -262,6 +262,8 @@ To make a widget in Tk, the command is always of the form::
 *classCommand*
    denotes which kind of widget to make (a button, a label, a menu...)
 
+.. index:: single: . (dot); in Tkinter
+
 *newPathname*
    is the new name for this widget.  All names in Tk must be unique.  To help
    enforce this, widgets in Tk are named with *pathnames*, just like files in a
diff --git a/Doc/library/traceback.rst b/Doc/library/traceback.rst
index a21ef8e..462a6a5 100644
--- a/Doc/library/traceback.rst
+++ b/Doc/library/traceback.rst
@@ -47,7 +47,7 @@ The module defines the following functions:
 
    * it prints the exception *etype* and *value* after the stack trace
 
-   .. index:: single: ^; caret
+   .. index:: single: ^ (caret); marker
 
    * if *type(value)* is :exc:`SyntaxError` and *value* has the appropriate
      format, it prints the line where the syntax error occurred with a caret
diff --git a/Doc/library/winreg.rst b/Doc/library/winreg.rst
index 99be47f..e9c0261 100644
--- a/Doc/library/winreg.rst
+++ b/Doc/library/winreg.rst
@@ -225,7 +225,7 @@ This module offers the following functions:
 
 
 .. index::
-   single: %; environment variables expansion (Windows)
+   single: % (percent); environment variables expansion (Windows)
 
 .. function:: ExpandEnvironmentStrings(str)