Commit 79349ed8 authored by Brad King's avatar Brad King
Browse files

Help: Tell latex to use a small font for cmake-language.7 productions

parent 20c5f4fb
......@@ -79,6 +79,10 @@ A CMake Language source file consists of zero or more
`Command Invocations`_ separated by newlines and optionally
spaces and `Comments`_:
.. raw:: latex
\begin{small}
.. productionlist::
file: `file_element`*
file_element: `command_invocation` `line_ending` |
......@@ -87,6 +91,10 @@ spaces and `Comments`_:
space: <match '[ \t]+'>
newline: <match '\n'>
.. raw:: latex
\end{small}
Note that any source file line not inside `Command Arguments`_ or
a `Bracket Comment`_ can end in a `Line Comment`_.
......@@ -98,6 +106,10 @@ Command Invocations
A *command invocation* is a name followed by paren-enclosed arguments
separated by whitespace:
.. raw:: latex
\begin{small}
.. productionlist::
command_invocation: `space`* `identifier` `space`* '(' `arguments` ')'
identifier: <match '[A-Za-z_][A-Za-z0-9_]*'>
......@@ -106,6 +118,10 @@ separated by whitespace:
: `separation`* '(' `arguments` ')'
separation: `space` | `line_ending`
.. raw:: latex
\end{small}
For example:
.. code-block:: cmake
......@@ -137,9 +153,17 @@ Command Arguments
There are three types of arguments within `Command Invocations`_:
.. raw:: latex
\begin{small}
.. productionlist::
argument: `bracket_argument` | `quoted_argument` | `unquoted_argument`
.. raw:: latex
\end{small}
.. _`Bracket Argument`:
Bracket Argument
......@@ -149,6 +173,10 @@ A *bracket argument*, inspired by `Lua`_ long bracket syntax,
encloses content between opening and closing "brackets" of the
same length:
.. raw:: latex
\begin{small}
.. productionlist::
bracket_argument: `bracket_open` `bracket_content` `bracket_close`
bracket_open: '[' '='{len} '['
......@@ -156,6 +184,10 @@ same length:
: of the same {len} as the `bracket_open`>
bracket_close: ']' '='{len} ']'
.. raw:: latex
\end{small}
An opening bracket of length *len >= 0* is written ``[`` followed
by *len* ``=`` followed by ``[`` and the corresponding closing
bracket is written ``]`` followed by *len* ``=`` followed by ``]``.
......@@ -197,6 +229,10 @@ Quoted Argument
A *quoted argument* encloses content between opening and closing
double-quote characters:
.. raw:: latex
\begin{small}
.. productionlist::
quoted_argument: '"' `quoted_element`* '"'
quoted_element: <any character except '\' or '"'> |
......@@ -204,6 +240,10 @@ double-quote characters:
: `quoted_continuation`
quoted_continuation: '\' `newline`
.. raw:: latex
\end{small}
Quoted argument content consists of all text between opening and
closing quotes. Both `Escape Sequences`_ and `Variable References`_
are evaluated. A quoted argument is always given to the command
......@@ -246,12 +286,20 @@ An *unquoted argument* is not enclosed by any quoting syntax.
It may not contain any whitespace, ``(``, ``)``, ``#``, ``"``, or ``\``
except when escaped by a backslash:
.. raw:: latex
\begin{small}
.. productionlist::
unquoted_argument: `unquoted_element`+ | `unquoted_legacy`
unquoted_element: <any character except whitespace or one of '()#"\'> |
: `escape_sequence`
unquoted_legacy: <see note in text>
.. raw:: latex
\end{small}
Unquoted argument content consists of all text in a contiguous block
of allowed or escaped characters. Both `Escape Sequences`_ and
`Variable References`_ are evaluated. The resulting value is divided
......@@ -294,12 +342,20 @@ Escape Sequences
An *escape sequence* is a ``\`` followed by one character:
.. raw:: latex
\begin{small}
.. productionlist::
escape_sequence: `escape_identity` | `escape_encoded` | `escape_semicolon`
escape_identity: '\' <match '[^A-Za-z0-9;]'>
escape_encoded: '\t' | '\r' | '\n'
escape_semicolon: '\;'
.. raw:: latex
\end{small}
A ``\`` followed by a non-alphanumeric character simply encodes the literal
character without interpreting it as syntax. A ``\t``, ``\r``, or ``\n``
encodes a tab, carriage return, or newline character, respectively. A ``\;``
......@@ -348,9 +404,17 @@ Bracket Comment
A ``#`` immediately followed by a `Bracket Argument`_ forms a
*bracket comment* consisting of the entire bracket enclosure:
.. raw:: latex
\begin{small}
.. productionlist::
bracket_comment: '#' `bracket_argument`
.. raw:: latex
\end{small}
For example:
.. code-block:: cmake
......@@ -371,10 +435,18 @@ Line Comment
A ``#`` not immediately followed by a `Bracket Argument`_ forms a
*line comment* that runs until the end of the line:
.. raw:: latex
\begin{small}
.. productionlist::
line_comment: '#' <any text not starting in a `bracket_argument`
: and not containing a `newline`>
.. raw:: latex
\end{small}
For example:
.. code-block:: cmake
......
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