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<h1 class="settitle" align="center">Ada Mode</h1>
<div class="top" id="Top">
<div class="header">
<p>
Next: <a href="#Overview" accesskey="n" rel="next">Overview</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Ada-Mode"></span><h1 class="top">Ada Mode</h1>
<p>Copyright © 1999–2019 Free Software Foundation, Inc.
</p>
<blockquote>
<p>Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3 or
any later version published by the Free Software Foundation; with no
Invariant Sections, with the Front-Cover Texts being “A GNU Manual”,
and with the Back-Cover Texts as in (a) below. A copy of the license
is included in the section entitled “GNU Free Documentation License”.
</p>
<p>(a) The FSF’s Back-Cover Text is: “You have the freedom to copy and
modify this GNU manual.”
</p></blockquote>
<div class="Contents_element" id="SEC_Contents">
<h2 class="contents-heading">Table of Contents</h2>
<div class="contents">
<ul class="no-bullet">
<li><a id="toc-Overview-1" href="#Overview">1 Overview</a></li>
<li><a id="toc-Installation-1" href="#Installation">2 Installation</a></li>
<li><a id="toc-Customizing-Ada-mode" href="#Customization">3 Customizing Ada mode</a>
<ul class="no-bullet">
<li><a id="toc-Non_002dstandard-file-names-1" href="#Non_002dstandard-file-names">3.1 Non-standard file names</a></li>
<li><a id="toc-Other-compiler-1" href="#Other-compiler">3.2 Other compiler</a></li>
<li><a id="toc-Other-customization-1" href="#Other-customization">3.3 Other customization</a></li>
</ul></li>
<li><a id="toc-Compiling-Executing-1" href="#Compiling-Executing">4 Compiling Executing</a>
<ul class="no-bullet">
<li><a id="toc-Compile-commands-1" href="#Compile-commands">4.1 Compile commands</a></li>
<li><a id="toc-Compiler-errors-1" href="#Compiler-errors">4.2 Compiler errors</a></li>
</ul></li>
<li><a id="toc-Project-files-1" href="#Project-files">5 Project files</a>
<ul class="no-bullet">
<li><a id="toc-Project-File-Overview-1" href="#Project-File-Overview">5.1 Project File Overview</a></li>
<li><a id="toc-GUI-Editor-1" href="#GUI-Editor">5.2 GUI Editor</a></li>
<li><a id="toc-Project-file-variables-1" href="#Project-file-variables">5.3 Project file variables</a></li>
</ul></li>
<li><a id="toc-Compiling-Examples-1" href="#Compiling-Examples">6 Compiling Examples</a>
<ul class="no-bullet">
<li><a id="toc-No-project-files-1" href="#No-project-files">6.1 No project files</a></li>
<li><a id="toc-Set-compiler-options-1" href="#Set-compiler-options">6.2 Set compiler options</a></li>
<li><a id="toc-Set-source-search-path-1" href="#Set-source-search-path">6.3 Set source search path</a></li>
<li><a id="toc-Use-GNAT-project-file-1" href="#Use-GNAT-project-file">6.4 Use GNAT project file</a></li>
<li><a id="toc-Use-multiple-GNAT-project-files-1" href="#Use-multiple-GNAT-project-files">6.5 Use multiple GNAT project files</a></li>
</ul></li>
<li><a id="toc-Moving-Through-Ada-Code-1" href="#Moving-Through-Ada-Code">7 Moving Through Ada Code</a></li>
<li><a id="toc-Identifier-completion-1" href="#Identifier-completion">8 Identifier completion</a></li>
<li><a id="toc-Automatic-Smart-Indentation-1" href="#Automatic-Smart-Indentation">9 Automatic Smart Indentation</a></li>
<li><a id="toc-Formatting-Parameter-Lists-1" href="#Formatting-Parameter-Lists">10 Formatting Parameter Lists</a></li>
<li><a id="toc-Automatic-Casing-1" href="#Automatic-Casing">11 Automatic Casing</a></li>
<li><a id="toc-Statement-Templates-1" href="#Statement-Templates">12 Statement Templates</a></li>
<li><a id="toc-Comment-Handling-1" href="#Comment-Handling">13 Comment Handling</a></li>
<li><a id="toc-GNU-Free-Documentation-License-1" href="#GNU-Free-Documentation-License">Appendix A GNU Free Documentation License</a></li>
<li><a id="toc-Index-1" href="#Index" rel="index">Index</a></li>
</ul>
</div>
</div>
<hr>
<div class="chapter" id="Overview">
<div class="header">
<p>
Next: <a href="#Installation" accesskey="n" rel="next">Installation</a>, Previous: <a href="#Top" accesskey="p" rel="prev">Ada Mode</a>, Up: <a href="#Top" accesskey="u" rel="up">Ada Mode</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Overview-1"></span><h2 class="chapter">1 Overview</h2>
<p>The Emacs mode for programming in Ada helps the user in understanding
existing code and facilitates writing new code.
</p>
<p>When the GNU Ada compiler GNAT is used, the cross-reference
information output by the compiler is used to provide powerful code
navigation (jump to definition, find all uses, etc.).
</p>
<p>When you open a file with a file extension of <samp>.ads</samp> or
<samp>.adb</samp>, Emacs will automatically load and activate Ada mode.
</p>
<p>Ada mode works without any customization, if you are using the GNAT
compiler (<a href="https://libre2.adacore.com/">https://libre2.adacore.com/</a>) and the GNAT default
naming convention.
</p>
<p>You must customize a few things if you are using a different compiler
or file naming convention; See <a href="#Other-compiler">Other compiler</a>, See <a href="#Non_002dstandard-file-names">Non-standard file names</a>.
</p>
<p>In addition, you may want to customize the indentation,
capitalization, and other things; See <a href="#Other-customization">Other customization</a>.
</p>
<p>Finally, for large Ada projects, you will want to set up an Emacs
Ada mode project file for each project; See <a href="#Project-files">Project files</a>. Note
that these are different from the GNAT project files used by gnatmake
and other GNAT commands.
</p>
<p>See the Emacs info manual, section ’Running Debuggers Under Emacs’,
for general information on debugging.
</p>
<hr>
</div>
<div class="chapter" id="Installation">
<div class="header">
<p>
Next: <a href="#Customization" accesskey="n" rel="next">Customizing Ada mode</a>, Previous: <a href="#Overview" accesskey="p" rel="prev">Overview</a>, Up: <a href="#Top" accesskey="u" rel="up">Ada Mode</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Installation-1"></span><h2 class="chapter">2 Installation</h2>
<p>Ada mode is part of the standard Emacs distribution; if you use that,
no files need to be installed.
</p>
<p>Ada mode is also available as a separate distribution, from the Emacs
Ada mode website
<a href="http://stephe-leake.org/emacs/ada-mode/emacs-ada-mode.html">http://stephe-leake.org/emacs/ada-mode/emacs-ada-mode.html</a>. The
separate distribution may be more recent.
</p>
<p>For installing the separate distribution, see the <samp>README</samp> file
in the distribution.
</p>
<p>To see what version of Ada mode you have installed, do <kbd>M-x
ada-mode-version</kbd>.
</p>
<p>The following files are provided with the Ada mode distribution:
</p>
<ul>
<li> <samp>ada-mode.el</samp>: The main file for Ada mode, providing indentation,
formatting of parameter lists, moving through code, comment handling
and automatic casing.
</li><li> <samp>ada-prj.el</samp>: GUI editing of Ada mode project files, using Emacs
widgets.
</li><li> <samp>ada-stmt.el</samp>: Ada statement templates.
</li><li> <samp>ada-xref.el</samp>: GNAT cross-references, completion of identifiers,
and compilation. Also provides project files (which are not
GNAT-specific).
</li></ul>
<hr>
</div>
<div class="chapter" id="Customization">
<div class="header">
<p>
Next: <a href="#Compiling-Executing" accesskey="n" rel="next">Compiling Executing</a>, Previous: <a href="#Installation" accesskey="p" rel="prev">Installation</a>, Up: <a href="#Top" accesskey="u" rel="up">Ada Mode</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Customizing-Ada-mode"></span><h2 class="chapter">3 Customizing Ada mode</h2>
<p>Here we assume you are familiar with setting variables in Emacs,
either thru ’customize’ or in elisp (in your <samp>.emacs</samp> file). For
a basic introduction to customize, elisp, and Emacs in general, see
the tutorial in
<cite>The GNU Emacs Manual</cite>.
</p>
<p>These global Emacs settings are strongly recommended (put them in your
.emacs):
</p>
<div class="example">
<pre class="example">(global-font-lock-mode t)
(transient-mark-mode t)
</pre></div>
<p>‘<samp>(global-font-lock-mode t)</samp>’ turns on syntax
highlighting for all buffers (it is off by default because it may be
too slow for some machines).
</p>
<p>‘<samp>(transient-mark-mode t)</samp>’ highlights selected text.
</p>
<p>See the Emacs help for each of these variables for more information.
</p>
<ul class="section-toc">
<li><a href="#Non_002dstandard-file-names" accesskey="1">Non-standard file names</a></li>
<li><a href="#Other-compiler" accesskey="2">Other compiler</a></li>
<li><a href="#Other-customization" accesskey="3">Other customization</a></li>
</ul>
<hr>
<div class="section" id="Non_002dstandard-file-names">
<div class="header">
<p>
Next: <a href="#Other-compiler" accesskey="n" rel="next">Other compiler</a>, Up: <a href="#Customization" accesskey="u" rel="up">Customizing Ada mode</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Non_002dstandard-file-names-1"></span><h3 class="section">3.1 Non-standard file names</h3>
<p>By default, Ada mode is configured to use the GNAT file naming
convention, where file names are a simple modification of the Ada
names, and the extension for specs and bodies are
‘<samp>.ads</samp>’ and ‘<samp>.adb</samp>’, respectively.
</p>
<p>Ada mode uses the file extensions to allow moving from a package body
to the corresponding spec and back.
</p>
<p>Ada mode supports a list of alternative file extensions for specs and bodies.
</p>
<p>For instance, if your spec and bodies files are called
<samp><var>unit</var>_s.ada</samp> and <samp><var>unit</var>_b.ada</samp>, respectively, you
can add the following to your <samp>.emacs</samp> file:
</p>
<div class="example">
<pre class="example">(ada-add-extensions "_s.ada" "_b.ada")
</pre></div>
<p>You can define additional extensions:
</p>
<div class="example">
<pre class="example">(ada-add-extensions ".ads" "_b.ada")
(ada-add-extensions ".ads" ".body")
</pre></div>
<p>This means that whenever Ada mode looks for the body for a file
whose extension is <samp>.ads</samp>, it will take the first available file
that ends with either <samp>.adb</samp>, <samp>_b.ada</samp> or
<samp>.body</samp>.
</p>
<p>Similarly, if Ada mode is looking for a spec, it will look for
<samp>.ads</samp> or <samp>_s.ada</samp>.
</p>
<p>If the filename is not derived from the Ada name following the GNAT
convention, things are a little more complicated. You then need to
rewrite the function <code>ada-make-filename-from-adaname</code>. Doing that
is beyond the scope of this manual; see the current definitions in
<samp>ada-mode.el</samp> and <samp>ada-xref.el</samp> for examples.
</p>
<hr>
</div>
<div class="section" id="Other-compiler">
<div class="header">
<p>
Next: <a href="#Other-customization" accesskey="n" rel="next">Other customization</a>, Previous: <a href="#Non_002dstandard-file-names" accesskey="p" rel="prev">Non-standard file names</a>, Up: <a href="#Customization" accesskey="u" rel="up">Customizing Ada mode</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Other-compiler-1"></span><h3 class="section">3.2 Other compiler</h3>
<p>By default, Ada mode is configured to use the GNU Ada compiler GNAT.
</p>
<p>To use a different Ada compiler, you must specify the command lines
used to run that compiler, either in lisp variables or in Emacs
Ada mode project files. See <a href="#Project-file-variables">Project file variables</a> for the list
of project variables, and the corresponding lisp variables.
</p>
<hr>
</div>
<div class="section" id="Other-customization">
<div class="header">
<p>
Previous: <a href="#Other-compiler" accesskey="p" rel="prev">Other compiler</a>, Up: <a href="#Customization" accesskey="u" rel="up">Customizing Ada mode</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Other-customization-1"></span><h3 class="section">3.3 Other customization</h3>
<p>All user-settable Ada mode variables can be set via the menu
‘<samp>Ada | Customize</samp>’. Click on the ‘<samp>Help</samp>’ button there for help
on using customize.
</p>
<p>To modify a specific variable, you can directly call the function
<code>customize-variable</code>; just type <kbd>M-x customize-variable
<span class="key">RET</span> <var>variable-name</var> <span class="key">RET</span></kbd>).
</p>
<p>Alternately, you can specify variable settings in the Emacs
configuration file, <samp>.emacs</samp>. This file is coded in Emacs lisp,
and the syntax to set a variable is the following:
</p><div class="example">
<pre class="example">(setq variable-name value)
</pre></div>
<hr>
</div>
</div>
<div class="chapter" id="Compiling-Executing">
<div class="header">
<p>
Next: <a href="#Project-files" accesskey="n" rel="next">Project files</a>, Previous: <a href="#Customization" accesskey="p" rel="prev">Customizing Ada mode</a>, Up: <a href="#Top" accesskey="u" rel="up">Ada Mode</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Compiling-Executing-1"></span><h2 class="chapter">4 Compiling Executing</h2>
<p>Ada projects can be compiled, linked, and executed using commands on
the Ada menu. All of these commands can be customized via a project
file (see <a href="#Project-files">Project files</a>), but the defaults are sufficient for using
the GNAT compiler for simple projects (single files, or several files
in a single directory).
</p>
<p>Even when no project file is used, the GUI project editor (menu
‘<samp>Ada | Project | Edit</samp>’) shows the settings of the various project
file variables referenced here.
</p>
<ul class="section-toc">
<li><a href="#Compile-commands" accesskey="1">Compile commands</a></li>
<li><a href="#Compiler-errors" accesskey="2">Compiler errors</a></li>
</ul>
<hr>
<div class="section" id="Compile-commands">
<div class="header">
<p>
Next: <a href="#Compiler-errors" accesskey="n" rel="next">Compiler errors</a>, Up: <a href="#Compiling-Executing" accesskey="u" rel="up">Compiling Executing</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Compile-commands-1"></span><h3 class="section">4.1 Compile commands</h3>
<p>Here are the commands for building and using an Ada project, as
listed in the Ada menu.
</p>
<p>In multi-file projects, there must be one file that is the main
program. That is given by the <code>main</code> project file variable;
it defaults to the current file if not yet set, but is also set by the
“set main and build” command.
</p>
<dl compact="compact">
<dt><span><code>Check file</code></span></dt>
<dd><p>Compiles the current file in syntax check mode, by running
<code>check_cmd</code> defined in the current project file. This typically
runs faster than full compile mode, speeding up finding and fixing
compilation errors.
</p>
<p>This sets <code>main</code> only if it has not been set yet.
</p>
</dd>
<dt><span><code>Compile file</code></span></dt>
<dd><p>Compiles the current file, by running <code>comp_cmd</code> from the current
project file.
</p>
<p>This does not set <code>main</code>.
</p>
</dd>
<dt><span><code>Set main and Build</code></span></dt>
<dd><p>Sets <code>main</code> to the current file, then executes the Build
command.
</p>
</dd>
<dt><span><code>Show main</code></span></dt>
<dd><p>Display <code>main</code> in the message buffer.
</p>
</dd>
<dt><span><code>Build</code></span></dt>
<dd><p>Compiles all obsolete units of the current <code>main</code>, and links
<code>main</code>, by running <code>make_cmd</code> from the current project.
</p>
<p>This sets <code>main</code> only if it has not been set yet.
</p>
</dd>
<dt><span><code>Run</code></span></dt>
<dd><p>Executes the main program in a shell, displayed in a separate Emacs
buffer. This runs <code>run_cmd</code> from the current project. The
execution buffer allows for interactive input/output.
</p>
<p>To modify the run command, in particular to provide or change the
command line arguments, type <kbd>C-u</kbd> before invoking the command.
</p>
<p>This command is not available for a cross-compilation toolchain.
</p>
</dd>
</dl>
<p>It is important when using these commands to understand how
<code>main</code> is used and changed.
</p>
<p>Build runs ’gnatmake’ on the main unit. During a typical edit/compile
session, this is the only command you need to invoke, which is why it
is bound to <kbd>C-c C-c</kbd>. It will compile all files needed by the
main unit, and display compilation errors in any of them.
</p>
<p>Note that Build can be invoked from any Ada buffer; typically you will
be fixing errors in files other than the main, but you don’t have to
switch back to the main to invoke the compiler again.
</p>
<p>Novices and students typically work on single-file Ada projects. In
this case, <kbd>C-c C-m</kbd> will normally be the only command needed; it
will build the current file, rather than the last-built main.
</p>
<p>There are three ways to change <code>main</code>:
</p>
<ol>
<li> Invoke ‘<samp>Ada | Set main and Build</samp>’, which sets <code>main</code> to
the current file.
</li><li> Invoke ‘<samp>Ada | Project | Edit</samp>’, edit <code>main</code> and
<code>main</code>, and click ‘<samp>[save]</samp>’
</li><li> Invoke ‘<samp>Ada | Project | Load</samp>’, and load a project file that specifies <code>main</code>
</li></ol>
<hr>
</div>
<div class="section" id="Compiler-errors">
<div class="header">
<p>
Previous: <a href="#Compile-commands" accesskey="p" rel="prev">Compile commands</a>, Up: <a href="#Compiling-Executing" accesskey="u" rel="up">Compiling Executing</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Compiler-errors-1"></span><h3 class="section">4.2 Compiler errors</h3>
<p>The <code>Check file</code>, <code>Compile file</code>, and <code>Build</code> commands
all place compilation errors in a separate buffer named
<samp>*compilation*</samp>.
</p>
<p>Each line in this buffer will become active: you can simply click on
it with the middle button of the mouse, or move point to it and press
<tt class="key">RET</tt>. Emacs will then display the relevant source file and put
point on the line and column where the error was found.
</p>
<p>You can also press the <kbd>C-x `</kbd> key (<code>next-error</code>), and Emacs
will jump to the first error. If you press that key again, it will
move you to the second error, and so on.
</p>
<p>Some error messages might also include references to other files. These
references are also clickable in the same way, or put point after the
line number and press <tt class="key">RET</tt>.
</p>
<hr>
</div>
</div>
<div class="chapter" id="Project-files">
<div class="header">
<p>
Next: <a href="#Compiling-Examples" accesskey="n" rel="next">Compiling Examples</a>, Previous: <a href="#Compiling-Executing" accesskey="p" rel="prev">Compiling Executing</a>, Up: <a href="#Top" accesskey="u" rel="up">Ada Mode</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Project-files-1"></span><h2 class="chapter">5 Project files</h2>
<p>An Emacs Ada mode project file specifies what directories hold sources
for your project, and allows you to customize the compilation commands
and other things on a per-project basis.
</p>
<p>Note that Ada mode project files <samp>*.adp</samp> are different than GNAT
compiler project files <samp>*.gpr</samp>. However, Emacs Ada mode can use a
GNAT project file to specify the project directories. If no
other customization is needed, a GNAT project file can be used without
an Emacs Ada mode project file.
</p>
<ul class="section-toc">
<li><a href="#Project-File-Overview" accesskey="1">Project File Overview</a></li>
<li><a href="#GUI-Editor" accesskey="2">GUI Editor</a></li>
<li><a href="#Project-file-variables" accesskey="3">Project file variables</a></li>
</ul>
<hr>
<div class="section" id="Project-File-Overview">
<div class="header">
<p>
Next: <a href="#GUI-Editor" accesskey="n" rel="next">GUI Editor</a>, Up: <a href="#Project-files" accesskey="u" rel="up">Project files</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Project-File-Overview-1"></span><h3 class="section">5.1 Project File Overview</h3>
<p>Project files have a simple syntax; they may be edited directly. Each
line specifies a project variable name and its value, separated by “=”:
</p><div class="example">
<pre class="example">src_dir=/Projects/my_project/src_1
src_dir=/Projects/my_project/src_2
</pre></div>
<p>Some variables (like <code>src_dir</code>) are lists; multiple occurrences
are concatenated.
</p>
<p>There must be no space between the variable name and “=”, and no
trailing spaces.
</p>
<p>Alternately, a GUI editor for project files is available (see <a href="#GUI-Editor">GUI Editor</a>). It uses Emacs widgets, similar to Emacs customize.
</p>
<p>The GUI editor also provides a convenient way to view current project
settings, if they have been modified using menu commands rather than
by editing the project file.
</p>
<p>After the first Ada mode build command is invoked, there is always a
current project file, given by the lisp variable
<code>ada-prj-default-project-file</code>. Currently, the only way to show
the current project file is to invoke the GUI editor.
</p>
<p>To find the project file the first time, Ada mode uses the following
search algorithm:
</p>
<ul>
<li> If <code>ada-prj-default-project-file</code> is set, use that.
</li><li> Otherwise, search for a file in the current directory with
the same base name as the Ada file, but extension given by
<code>ada-prj-file-extension</code> (default <code>".adp"</code>).
</li><li> If not found, search for <samp>*.adp</samp> in the current directory; if
several are found, prompt the user to select one.
</li><li> If none are found, use <samp>default.adp</samp> in the current directory (even
if it does not exist).
</li></ul>
<p>This algorithm always sets <code>ada-prj-default-project-file</code>, even
when the file does not actually exist.
</p>
<p>To change the project file before or after the first one is found,
invoke ‘<samp>Ada | Project | Load ...</samp>’.
</p>
<p>Or, in lisp, evaluate <code>(ada-set-default-project-file "/path/file.adp")</code>.
This sets <code>ada-prj-default-project-file</code>, and reads the project file.
</p>
<p>You can also specify a GNAT project file to ‘<samp>Ada | Project | Load
...</samp>’ or <code>ada-set-default-project-file</code>. Emacs Ada mode checks the
file extension; if it is <code>.gpr</code>, the file is treated as a GNAT
project file. Any other extension is treated as an Emacs Ada mode
project file.
</p>
<hr>
</div>
<div class="section" id="GUI-Editor">
<div class="header">
<p>
Next: <a href="#Project-file-variables" accesskey="n" rel="next">Project file variables</a>, Previous: <a href="#Project-File-Overview" accesskey="p" rel="prev">Project File Overview</a>, Up: <a href="#Project-files" accesskey="u" rel="up">Project files</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="GUI-Editor-1"></span><h3 class="section">5.2 GUI Editor</h3>
<p>The project file editor is invoked with the menu ‘<samp>Ada | Projects
| Edit</samp>’.
</p>
<p>Once in the buffer for editing the project file, you can save your
modification using the ‘<samp>[save]</samp>’ button at the bottom of the
buffer, or the <kbd>C-x C-s</kbd> binding. To cancel your modifications,
kill the buffer or click on the ‘<samp>[cancel]</samp>’ button.
</p>
<hr>
</div>
<div class="section" id="Project-file-variables">
<div class="header">
<p>
Previous: <a href="#GUI-Editor" accesskey="p" rel="prev">GUI Editor</a>, Up: <a href="#Project-files" accesskey="u" rel="up">Project files</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Project-file-variables-1"></span><h3 class="section">5.3 Project file variables</h3>
<p>The following variables can be defined in a project file; some can
also be defined in lisp variables.
</p>
<p>To set a project variable that is a list, specify each element of the
list on a separate line in the project file.
</p>
<p>Any project variable can be referenced in other project variables,
using a shell-like notation. For instance, if the variable
<code>comp_cmd</code> contains <code>${comp_opt}</code>, the value of the
<code>comp_opt</code> variable will be substituted when <code>comp_cmd</code> is
used.
</p>
<p>In addition, process environment variables can be referenced using the
same syntax, or the normal <code>$var</code> syntax.
</p>
<p>Most project variables have defaults that can be changed by setting
lisp variables; the table below identifies the lisp variable for each
project variable. Lisp variables corresponding to project variables
that are lists are lisp lists.
</p>
<p>In general, project variables are evaluated when referenced in
Emacs Ada mode commands. Relative file paths are expanded to
absolute relative to <code>${build_dir}</code>.
</p>
<p>Here is the list of variables. In the default values, the current
directory <code>"."</code> is the project file directory.
</p>
<dl compact="compact">
<dt><span><code>ada_project_path_sep</code> [default: <code>":" or ";"</code>]</span></dt>
<dd><p>Path separator for <code>ADA_PROJECT_PATH</code>. It defaults to the correct
value for a native implementation of GNAT for the current operating
system. The user must override this when using Windows native GNAT
with Cygwin Emacs, and perhaps in other cases.
</p>
<p>Lisp variable: <code>ada-prj-ada-project-path-sep</code>.
</p>
</dd>
<dt><span><code>ada_project_path</code> [default: <code>""</code>]</span></dt>
<dd><p>A list of directories to search for GNAT project files.
</p>
<p>If set, the <code>ADA_PROJECT_PATH</code> process environment variable is
set to this value in the Emacs process when the Emacs Ada mode project
is selected via menu ‘<samp>Ada | Project | Load</samp>’.
</p>
<p>For <code>ada_project_path</code>, relative file paths are expanded to
absolute when the Emacs Ada project file is read, rather than when the
project file is selected.
</p>
<p>For example if the project file is in the directory
<samp>/home/myproject</samp>, the environment variable <code>GDS_ROOT</code> is
set to <code>/home/shared</code>, and the project file contains:
</p><div class="example">
<pre class="example">ada_project_path_sep=:
ada_project_path=$GDS_ROOT/makerules
ada_project_path=../opentoken
</pre></div>
<p>then as a result the environment variable <code>ADA_PROJECT_PATH</code> will
be set to <code>"/home/shared/makerules:/home/opentoken/"</code>.
</p>
<p>The default value is not the current value of this environment
variable, because that will typically have been set by another
project, and will therefore be incorrect for this project.
</p>
<p>If you have the environment variable set correctly for all of your
projects, you do not need to set this project variable.
</p>
</dd>
<dt><span><code>bind_opt</code> [default: <code>""</code>]</span></dt>
<dd><p>Holds user binder options; used in the default build commands.
</p>
<p>Lisp variable: <code>ada-prj-default-bind-opt</code>.
</p>
</dd>
<dt><span><code>build_dir</code> [default: <code>"."</code>]</span></dt>
<dd><p>The compile commands will be issued in this directory.
</p>
</dd>
<dt><span><code>casing</code> [default: <code>("~/.emacs_case_exceptions")</code>]</span></dt>
<dd><p>List of files containing casing exceptions. See the help on
<code>ada-case-exception-file</code> for more info.
</p>
<p>Lisp variable: <code>ada-case-exception-file</code>.
</p>
</dd>
<dt><span><code>check_cmd</code> [default: <code>"${cross_prefix}gnatmake -u -c -gnatc ${gnatmake_opt} ${full_current} -cargs ${comp_opt}"</code>]</span></dt>
<dd><p>Command used to syntax check a single file.
The name of the file is substituted for <code>full_current</code>.
</p>
<p>Lisp variable: <code>ada-prj-default-check-cmd</code>
</p>
</dd>
<dt><span><code>comp_cmd</code> [default: <code>"${cross_prefix}gnatmake -u -c ${gnatmake_opt} ${full_current} -cargs ${comp_opt}"</code>]</span></dt>
<dd><p>Command used to compile a single file.
The name of the file is substituted for <code>full_current</code>.
</p>
<p>Lisp variable: <code>ada-prj-default-comp-cmd</code>.
</p>
</dd>
<dt><span><code>comp_opt</code> [default: <code>"-gnatq -gnatQ"</code>]</span></dt>
<dd><p>Holds user compiler options; used in the default compile commands. The
default value tells gnatmake to generate library files for
cross-referencing even when there are errors.
</p>
<p>If source code for the project is in multiple directories, the
appropriate compiler options must be added here. <a href="#Set-source-search-path">Set source search path</a> for examples of this. Alternately, GNAT project files may
be used; <a href="#Use-GNAT-project-file">Use GNAT project file</a>.
</p>
<p>Lisp variable: <code>ada-prj-default-comp-opt</code>.
</p>
</dd>
<dt><span><code>cross_prefix</code> [default: <code>""</code>]</span></dt>
<dd><p>Name of target machine in a cross-compilation environment. Used in
default compile and build commands.
</p>
</dd>
<dt><span><code>debug_cmd</code> [default: <code>"${cross_prefix}gdb ${main}"</code>]</span></dt>
<dd><p>Command used to debug the application
</p>
<p>Lisp variable: <code>ada-prj-default-debugger</code>.
</p>
</dd>
<dt><span><code>debug_post_cmd</code> [default: <code>""</code>]</span></dt>
<dd><p>Command executed after <code>debug_cmd</code>.
</p>
</dd>
<dt><span><code>debug_pre_cmd</code> [default: <code>"cd ${build_dir}"</code>]</span></dt>
<dd><p>Command executed before <code>debug_cmd</code>.
</p>
</dd>
<dt><span><code>gnatfind_opt</code> [default: <code>"-rf"</code>]</span></dt>
<dd><p>Holds user gnatfind options; used in the default find commands.
</p>
<p>Lisp variable: <code>ada-prj-gnatfind-switches</code>.
</p>
</dd>
<dt><span><code>gnatmake_opt</code> [default: <code>"-g"</code>]</span></dt>
<dd><p>Holds user gnatmake options; used in the default build commands.
</p>
<p>Lisp variable: <code>ada-prj-default-gnatmake-opt</code>.
</p>
</dd>
<dt><span><code>gpr_file</code> [default: <code>""</code>]</span></dt>
<dd><p>Specify GNAT project file.
</p>
<p>If set, the source and object directories specified in the GNAT
project file are appended to <code>src_dir</code> and <code>obj_dir</code>. This
allows specifying Ada source directories with a GNAT project file, and
other source directories with the Emacs project file.
</p>
<p>In addition, <code>-P{gpr_file}</code> is added to the project variable
<code>gnatmake_opt</code> whenever it is referenced. With the default
project variables, this passes the project file to all gnatmake
commands.
</p>
<p>Lisp variable: <code>ada-prj-default-gpr-file</code>.
</p>
</dd>
<dt><span><code>link_opt</code> [default: <code>""</code>]</span></dt>
<dd><p>Holds user linker options; used in the default build commands.
</p>
<p>Lisp variable: <code>ada-prj-default-link-opt</code>.
</p>
</dd>
<dt><span><code>main</code> [default: current file]</span></dt>
<dd><p>Specifies the name of the executable file for the project; used in the
default build commands.
</p>
</dd>
<dt><span><code>make_cmd</code> [default: <code>"${cross_prefix}gnatmake -o ${main} ${main} ${gnatmake_opt} -cargs ${comp_opt} -bargs ${bind_opt} -largs ${link_opt}"</code>]</span></dt>
<dd><p>Command used to build the application.
</p>
<p>Lisp variable: <code>ada-prj-default-make-cmd</code>.
</p>
</dd>
<dt><span><code>obj_dir</code> [default: <code>"."</code>]</span></dt>
<dd><p>A list of directories to search for library files. Ada mode searches
this list for the ‘<samp>.ali</samp>’ files generated by GNAT that contain
cross-reference information.
</p>
<p>The compiler commands must place the ‘<samp>.ali</samp>’ files in one of these
directories; the default commands do that.
</p>
</dd>
<dt><span><code>remote_machine</code> [default: <code>""</code>]</span></dt>
<dd><p>Name of the machine to log into before issuing the compile and build
commands. If this variable is empty, the command will be run on the
local machine.
</p>
</dd>
<dt><span><code>run_cmd</code> [default: <code>"./${main}"</code>]</span></dt>
<dd><p>Command used to run the application.
</p>
</dd>
<dt><span><code>src_dir</code> [default: <code>"."</code>]</span></dt>
<dd><p>A list of directories to search for source files, both for compile
commands and source navigation.
</p>
</dd>
</dl>
<hr>
</div>
</div>
<div class="chapter" id="Compiling-Examples">
<div class="header">
<p>
Next: <a href="#Moving-Through-Ada-Code" accesskey="n" rel="next">Moving Through Ada Code</a>, Previous: <a href="#Project-files" accesskey="p" rel="prev">Project files</a>, Up: <a href="#Top" accesskey="u" rel="up">Ada Mode</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Compiling-Examples-1"></span><h2 class="chapter">6 Compiling Examples</h2>
<p>We present several small projects, and walk thru the process of
compiling, linking, and running them.
</p>
<p>The first example illustrates more Ada mode features than the others;
you should work thru that example before doing the others.
</p>
<p>All of these examples assume you are using GNAT.
</p>
<p>The source for these examples is available on the Emacs Ada mode
website mentioned in See <a href="#Installation">Installation</a>.
</p>
<ul class="section-toc">
<li><a href="#No-project-files" accesskey="1">No project files</a></li>
<li><a href="#Set-compiler-options" accesskey="2">Set compiler options</a></li>
<li><a href="#Set-source-search-path" accesskey="3">Set source search path</a></li>
<li><a href="#Use-GNAT-project-file" accesskey="4">Use GNAT project file</a></li>
<li><a href="#Use-multiple-GNAT-project-files" accesskey="5">Use multiple GNAT project files</a></li>
</ul>
<hr>
<div class="section" id="No-project-files">
<div class="header">
<p>
Next: <a href="#Set-compiler-options" accesskey="n" rel="next">Set compiler options</a>, Up: <a href="#Compiling-Examples" accesskey="u" rel="up">Compiling Examples</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="No-project-files-1"></span><h3 class="section">6.1 No project files</h3>
<p>This example uses no project files.
</p>
<p>First, create a directory <samp>Example_1</samp>, containing:
</p>
<p><samp>hello.adb</samp>:
</p>
<div class="example">
<pre class="example">with Ada.Text_IO;
procedure Hello
is begin
Put_Line("Hello from hello.adb");
end Hello;
</pre></div>
<p>Yes, this is missing “use Ada.Text_IO;” - we want to demonstrate
compiler error handling.
</p>
<p><samp>hello_2.adb</samp>:
</p>
<div class="example">
<pre class="example">with Hello_Pkg;
procedure Hello_2
is begin
Hello_Pkg.Say_Hello;
end Hello_2;
</pre></div>
<p>This file has no errors.
</p>
<p><samp>hello_pkg.ads</samp>:
</p>
<div class="example">
<pre class="example">package Hello_Pkg is
procedure Say_Hello;
end Hello_Pkg;
</pre></div>
<p>This file has no errors.
</p>
<p><samp>hello_pkg.adb</samp>:
</p>
<div class="example">
<pre class="example">with Ada.Text_IO;
package Hello_Pkg is
procedure Say_Hello
is begin
Ada.Text_IO.Put_Line ("Hello from hello_pkg.adb");
end Say_Hello;
end Hello_Pkg;
</pre></div>
<p>Yes, this is missing the keyword <code>body</code>; another compiler error
example.
</p>
<p>In buffer <samp>hello.adb</samp>, invoke ‘<samp>Ada | Check file</samp>’. You should
get a <samp>*compilation*</samp> buffer containing something like (the
directory paths will be different):
</p>
<div class="example">
<pre class="example">cd c:/Examples/Example_1/
gnatmake -u -c -gnatc -g c:/Examples/Example_1/hello.adb -cargs -gnatq -gnatQ
gcc -c -Ic:/Examples/Example_1/ -gnatc -g -gnatq -gnatQ -I- c:/Examples/Example_1/hello.adb
hello.adb:4:04: "Put_Line" is not visible
hello.adb:4:04: non-visible declaration at a-textio.ads:264
hello.adb:4:04: non-visible declaration at a-textio.ads:260
gnatmake: "c:/Examples/Example_1/hello.adb" compilation error
</pre></div>
<p>If you have enabled font-lock, the lines with actual errors (starting
with <samp>hello.adb</samp>) are highlighted, with the file name in red.
</p>
<p>Now type <kbd>C-x `</kbd> (on a PC keyboard, <tt class="key">`</tt> is next to <tt class="key">1</tt>).
Or you can click the middle mouse button on the first error line. The
compilation buffer scrolls to put the first error on the top line, and
point is put at the place of the error in the <samp>hello.adb</samp> buffer.
</p>
<p>To fix the error, change the line to be
</p>
<div class="example">
<pre class="example"> Ada.Text_IO.Put_Line ("hello from hello.adb");
</pre></div>
<p>Now invoke ‘<samp>Ada | Show main</samp>’; this displays ‘<samp>Ada mode main: hello</samp>’.
</p>
<p>Now (in buffer <samp>hello.adb</samp>), invoke ‘<samp>Ada | Build</samp>’. You are
prompted to save the file (if you haven’t already). Then the
compilation buffer is displayed again, containing:
</p>
<div class="example">
<pre class="example">cd c:/Examples/Example_1/
gnatmake -o hello hello -g -cargs -gnatq -gnatQ -bargs -largs
gcc -c -g -gnatq -gnatQ hello.adb
gnatbind -x hello.ali
gnatlink hello.ali -o hello.exe -g
</pre></div>
<p>The compilation has succeeded without errors; <samp>hello.exe</samp> now
exists in the same directory as <samp>hello.adb</samp>.
</p>
<p>Now invoke ‘<samp>Ada | Run</samp>’. A <samp>*run*</samp> buffer is displayed,
containing
</p>
<div class="example">
<pre class="example">Hello from hello.adb
Process run finished
</pre></div>
<p>That completes the first part of this example.
</p>
<p>Now we will compile a multi-file project. Open the file
<samp>hello_2.adb</samp>, and invoke ‘<samp>Ada | Set main and Build</samp>’. This
finds an error in <samp>hello_pkg.adb</samp>:
</p>
<div class="example">
<pre class="example">cd c:/Examples/Example_1/
gnatmake -o hello_2 hello_2 -g -cargs -gnatq -gnatQ -bargs -largs
gcc -c -g -gnatq -gnatQ hello_pkg.adb
hello_pkg.adb:2:08: keyword "body" expected here [see file name]
gnatmake: "hello_pkg.adb" compilation error
</pre></div>
<p>This demonstrates that gnatmake finds the files needed by the main
program. However, it cannot find files in a different directory,
unless you use an Emacs Ada mode project file to specify the other directories;
See <a href="#Set-source-search-path">Set source search path</a>, or a GNAT project file; <a href="#Use-GNAT-project-file">Use GNAT project file</a>.
</p>
<p>Invoke ‘<samp>Ada | Show main</samp>’; this displays <samp>Ada mode main: hello_2</samp>.
</p>
<p>Move to the error with <kbd>C-x `</kbd>, and fix the error by adding <code>body</code>:
</p>
<div class="example">
<pre class="example">package body Hello_Pkg is
</pre></div>
<p>Now, while still in <samp>hello_pkg.adb</samp>, invoke ‘<samp>Ada | Build</samp>’.
gnatmake successfully builds <samp>hello_2</samp>. This demonstrates that
Emacs has remembered the main file, in the project variable
<code>main</code>, and used it for the Build command.
</p>
<p>Finally, again while in <samp>hello_pkg.adb</samp>, invoke ‘<samp>Ada | Run</samp>’.
The <samp>*run*</samp> buffer displays <code>Hello from hello_pkg.adb</code>.
</p>
<p>One final point. If you switch back to buffer <samp>hello.adb</samp>, and
invoke ‘<samp>Ada | Run</samp>’, <samp>hello_2.exe</samp> will be run. That is
because <code>main</code> is still set to <code>hello_2</code>, as you can
see when you invoke ‘<samp>Ada | Project | Edit</samp>’.
</p>
<p>There are three ways to change <code>main</code>:
</p>
<ol>
<li> Invoke ‘<samp>Ada | Set main and Build</samp>’, which sets <code>main</code> to
the current file.
</li><li> Invoke ‘<samp>Ada | Project | Edit</samp>’, edit <code>main</code>, and click ‘<samp>[save]</samp>’
</li><li> Invoke ‘<samp>Ada | Project | Load</samp>’, and load a project file that specifies <code>main</code>
</li></ol>
<hr>
</div>
<div class="section" id="Set-compiler-options">
<div class="header">
<p>
Next: <a href="#Set-source-search-path" accesskey="n" rel="next">Set source search path</a>, Previous: <a href="#No-project-files" accesskey="p" rel="prev">No project files</a>, Up: <a href="#Compiling-Examples" accesskey="u" rel="up">Compiling Examples</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Set-compiler-options-1"></span><h3 class="section">6.2 Set compiler options</h3>
<p>This example illustrates using an Emacs Ada mode project file to set a
compiler option.
</p>
<p>If you have files from <samp>Example_1</samp> open in Emacs, you should
close them so you don’t get confused. Use menu ‘<samp>File | Close
(current buffer)</samp>’.
</p>
<p>In directory <samp>Example_2</samp>, create these files:
</p>
<p><samp>hello.adb</samp>:
</p>
<div class="example">
<pre class="example">with Ada.Text_IO;
procedure Hello
is begin
Put_Line("Hello from hello.adb");
end Hello;
</pre></div>
<p>This is the same as <samp>hello.adb</samp> from <samp>Example_1</samp>. It has two
errors; missing “use Ada.Text_IO;”, and no space between
<code>Put_Line</code> and its argument list.
</p>
<p><samp>hello.adp</samp>:
</p>
<div class="example">
<pre class="example">comp_opt=-gnatyt
</pre></div>
<p>This tells the GNAT compiler to check for token spacing; in
particular, there must be a space preceding a parenthesis.
</p>
<p>In buffer <samp>hello.adb</samp>, invoke ‘<samp>Ada | Project | Load...</samp>’, and
select <samp>Example_2/hello.adp</samp>.
</p>
<p>Then, again in buffer <samp>hello.adb</samp>, invoke ‘<samp>Ada | Set main and
Build</samp>’. You should get a <samp>*compilation*</samp> buffer containing
something like (the directory paths will be different):
</p>
<div class="example">
<pre class="example">cd c:/Examples/Example_2/
gnatmake -o hello hello -g -cargs -gnatyt -bargs -largs
gcc -c -g -gnatyt hello.adb
hello.adb:4:04: "Put_Line" is not visible
hello.adb:4:04: non-visible declaration at a-textio.ads:264
hello.adb:4:04: non-visible declaration at a-textio.ads:260
hello.adb:4:12: (style) space required
gnatmake: "hello.adb" compilation error
</pre></div>
<p>Compare this to the compiler output in <a href="#No-project-files">No project files</a>; the
gnatmake option <code>-cargs -gnatq -gnatQ</code> has been replaced by
<code>-cargs -gnaty</code>, and an additional error is reported in
<samp>hello.adb</samp> on line 4. This shows that <samp>hello.adp</samp> is being
used to set the compiler options.
</p>
<p>Fixing the error, linking and running the code proceed as in <a href="#No-project-files">No project files</a>.
</p>
<hr>
</div>
<div class="section" id="Set-source-search-path">
<div class="header">
<p>
Next: <a href="#Use-GNAT-project-file" accesskey="n" rel="next">Use GNAT project file</a>, Previous: <a href="#Set-compiler-options" accesskey="p" rel="prev">Set compiler options</a>, Up: <a href="#Compiling-Examples" accesskey="u" rel="up">Compiling Examples</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Set-source-search-path-1"></span><h3 class="section">6.3 Set source search path</h3>
<p>In this example, we show how to deal with files in more than one
directory. We start with the same code as in <a href="#No-project-files">No project files</a>;
create those files (with the errors present)
</p>
<p>Create the directory <samp>Example_3</samp>, containing:
</p>
<p><samp>hello_pkg.ads</samp>:
</p>
<div class="example">
<pre class="example">package Hello_Pkg is
procedure Say_Hello;
end Hello_Pkg;
</pre></div>
<p><samp>hello_pkg.adb</samp>:
</p>
<div class="example">
<pre class="example">with Ada.Text_IO;
package Hello_Pkg is
procedure Say_Hello
is begin
Ada.Text_IO.Put_Line ("Hello from hello_pkg.adb");
end Say_Hello;
end Hello_Pkg;
</pre></div>
<p>These are the same files from example 1; <samp>hello_pkg.adb</samp> has an
error on line 2.
</p>
<p>In addition, create a directory <samp>Example_3/Other</samp>, containing these files:
</p>
<p><samp>Other/hello_3.adb</samp>:
</p>
<div class="example">
<pre class="example">with Hello_Pkg;
with Ada.Text_IO; use Ada.Text_IO;
procedure Hello_3
is begin
Hello_Pkg.Say_Hello;
Put_Line ("From hello_3");
end Hello_3;
</pre></div>
<p>There are no errors in this file.
</p>
<p><samp>Other/other.adp</samp>:
</p>
<div class="example">
<pre class="example">src_dir=..
comp_opt=-I..
</pre></div>
<p>Note that there must be no trailing spaces.
</p>
<p>In buffer <samp>hello_3.adb</samp>, invoke ‘<samp>Ada | Project | Load...</samp>’, and
select <samp>Example_3/Other/other.adp</samp>.
</p>
<p>Then, again in <samp>hello_3.adb</samp>, invoke ‘<samp>Ada | Set main and
Build</samp>’. You should get a <samp>*compilation*</samp> buffer containing
something like (the directory paths will be different):
</p>
<div class="example">
<pre class="example">cd c:/Examples/Example_3/Other/
gnatmake -o hello_3 hello_3 -g -cargs -I.. -bargs -largs
gcc -c -g -I.. hello_3.adb
gcc -c -I./ -g -I.. -I- C:\Examples\Example_3\hello_pkg.adb
hello_pkg.adb:2:08: keyword "body" expected here [see file name]
gnatmake: "C:\Examples\Example_3\hello_pkg.adb" compilation error
</pre></div>
<p>Compare the <code>-cargs</code> option to the compiler output in <a href="#Set-compiler-options">Set compiler options</a>; this shows that <samp>other.adp</samp> is being used to
set the compiler options.
</p>
<p>Move to the error with <kbd>C-x `</kbd>. Ada mode searches the list of
directories given by <code>src_dir</code> for the file mentioned in the
compiler error message.
</p>
<p>Fixing the error, linking and running the code proceed as in <a href="#No-project-files">No project files</a>.
</p>
<hr>
</div>
<div class="section" id="Use-GNAT-project-file">
<div class="header">
<p>
Next: <a href="#Use-multiple-GNAT-project-files" accesskey="n" rel="next">Use multiple GNAT project files</a>, Previous: <a href="#Set-source-search-path" accesskey="p" rel="prev">Set source search path</a>, Up: <a href="#Compiling-Examples" accesskey="u" rel="up">Compiling Examples</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Use-GNAT-project-file-1"></span><h3 class="section">6.4 Use GNAT project file</h3>
<p>In this example, we show how to use a GNAT project file, with no Ada
mode project file.
</p>
<p>Create the directory <samp>Example_4</samp>, containing:
</p>
<p><samp>hello_pkg.ads</samp>:
</p>
<div class="example">
<pre class="example">package Hello_Pkg is
procedure Say_Hello;
end Hello_Pkg;
</pre></div>
<p><samp>hello_pkg.adb</samp>:
</p>
<div class="example">
<pre class="example">with Ada.Text_IO;
package Hello_Pkg is
procedure Say_Hello
is begin
Ada.Text_IO.Put_Line ("Hello from hello_pkg.adb");
end Say_Hello;
end Hello_Pkg;
</pre></div>
<p>These are the same files from example 1; <samp>hello_pkg.adb</samp> has an
error on line 2.
</p>
<p>In addition, create a directory <samp>Example_4/Gnat_Project</samp>,
containing these files:
</p>
<p><samp>Gnat_Project/hello_4.adb</samp>:
</p>
<div class="example">
<pre class="example">with Hello_Pkg;
with Ada.Text_IO; use Ada.Text_IO;
procedure Hello_4
is begin
Hello_Pkg.Say_Hello;
Put_Line ("From hello_4");
end Hello_4;
</pre></div>
<p>There are no errors in this file.
</p>
<p><samp>Gnat_Project/hello_4.gpr</samp>:
</p>
<div class="example">
<pre class="example">Project Hello_4 is
for Source_Dirs use (".", "..");
end Hello_4;
</pre></div>
<p>In buffer <samp>hello_4.adb</samp>, invoke ‘<samp>Ada | Project | Load...</samp>’, and
select <samp>Example_4/Gnat_Project/hello_4.gpr</samp>.
</p>
<p>Then, again in <samp>hello_4.adb</samp>, invoke ‘<samp>Ada | Set main and
Build</samp>’. You should get a <samp>*compilation*</samp> buffer containing
something like (the directory paths will be different):
</p>
<div class="example">
<pre class="example">cd c:/Examples/Example_4/Gnat_Project/
gnatmake -o hello_4 hello_4 -Phello_4.gpr -cargs -gnatq -gnatQ -bargs -largs
gcc -c -g -gnatyt -gnatq -gnatQ -I- -gnatA c:\Examples\Example_4\Gnat_Project\hello_4.adb
gcc -c -g -gnatyt -gnatq -gnatQ -I- -gnatA c:\Examples\Example_4\hello_pkg.adb
hello_pkg.adb:2:08: keyword "body" expected here [see file name]
gnatmake: "c:\examples\example_4\hello_pkg.adb" compilation error
</pre></div>
<p>Compare the <code>gcc</code> options to the compiler output in <a href="#Set-compiler-options">Set compiler options</a>; this shows that <samp>hello_4.gpr</samp> is being used to
set the compiler options.
</p>
<p>Fixing the error, linking and running the code proceed as in <a href="#No-project-files">No project files</a>.
</p>
<hr>
</div>
<div class="section" id="Use-multiple-GNAT-project-files">
<div class="header">
<p>
Previous: <a href="#Use-GNAT-project-file" accesskey="p" rel="prev">Use GNAT project file</a>, Up: <a href="#Compiling-Examples" accesskey="u" rel="up">Compiling Examples</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Use-multiple-GNAT-project-files-1"></span><h3 class="section">6.5 Use multiple GNAT project files</h3>
<p>In this example, we show how to use multiple GNAT project files,
specifying the GNAT project search path in an Ada mode project file.
</p>
<p>Create the directory <samp>Example_4</samp> as specified in <a href="#Use-GNAT-project-file">Use GNAT project file</a>.
</p>
<p>Create the directory <samp>Example_5</samp>, containing:
</p>
<p><samp>hello_5.adb</samp>:
</p>
<div class="example">
<pre class="example">with Hello_Pkg;
with Ada.Text_IO; use Ada.Text_IO;
procedure Hello_5
is begin
Hello_Pkg.Say_Hello;
Put_Line ("From hello_5");
end Hello_5;
</pre></div>
<p>There are no errors in this file.
</p>
<p><samp>hello_5.adp</samp>:
</p>
<div class="example">
<pre class="example">ada_project_path=../Example_4/Gnat_Project
gpr_file=hello_5.gpr
</pre></div>
<p><samp>hello_5.gpr</samp>:
</p>
<div class="example">
<pre class="example">with "hello_4";
Project Hello_5 is
for Source_Dirs use (".");
package Compiler is
for Default_Switches ("Ada") use ("-g", "-gnatyt");
end Compiler;
end Hello_5;
</pre></div>
<p>In buffer <samp>hello_5.adb</samp>, invoke ‘<samp>Ada | Project | Load...</samp>’, and
select <samp>Example_5/hello_5.adp</samp>.
</p>
<p>Then, again in <samp>hello_5.adb</samp>, invoke ‘<samp>Ada | Set main and
Build</samp>’. You should get a <samp>*compilation*</samp> buffer containing
something like (the directory paths will be different):
</p>
<div class="example">
<pre class="example">cd c:/Examples/Example_5/
gnatmake -o hello_5 hello_5 -Phello_5.gpr -g -cargs -gnatq -gnatQ -bargs -largs
gcc -c -g -gnatyt -g -gnatq -gnatQ -I- -gnatA c:\Examples\Example_5\hello_5.adb
gcc -c -g -gnatyt -g -gnatq -gnatQ -I- -gnatA c:\Examples\Example_4\hello_pkg.adb
hello_pkg.adb:2:08: keyword "body" expected here [see file name]
gnatmake: "c:\examples\example_4\hello_pkg.adb" compilation error
</pre></div>
<p>Now type <kbd>C-x `</kbd>. <samp>Example_4/hello_pkg.adb</samp> is shown,
demonstrating that <samp>hello_5.gpr</samp> and <samp>hello_4.gpr</samp> are being
used to set the compilation search path.
</p>
<hr>
</div>
</div>
<div class="chapter" id="Moving-Through-Ada-Code">
<div class="header">
<p>
Next: <a href="#Identifier-completion" accesskey="n" rel="next">Identifier completion</a>, Previous: <a href="#Compiling-Examples" accesskey="p" rel="prev">Compiling Examples</a>, Up: <a href="#Top" accesskey="u" rel="up">Ada Mode</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Moving-Through-Ada-Code-1"></span><h2 class="chapter">7 Moving Through Ada Code</h2>
<p>There are several easy to use commands to navigate through Ada code. All
these functions are available through the Ada menu, and you can also
use the following key bindings or the command names. Some of these
menu entries are available only if the GNAT compiler is used, since
the implementation relies on the GNAT cross-referencing information.
</p>
<dl compact="compact">
<dt id='index-ada_002dnext_002dprocedure'><span><kbd>M-C-e</kbd><a href='#index-ada_002dnext_002dprocedure' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>Move to the next function/procedure/task, which ever comes next
(<code>ada-next-procedure</code>).
</p></dd>
<dt id='index-ada_002dprevious_002dprocedure'><span><kbd>M-C-a</kbd><a href='#index-ada_002dprevious_002dprocedure' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>Move to previous function/procedure/task
(<code>ada-previous-procedure</code>).
</p></dd>
<dt id='index-ada_002dnext_002dpackage'><span><kbd>M-x ada-next-package</kbd><a href='#index-ada_002dnext_002dpackage' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>Move to next package.
</p></dd>
<dt id='index-ada_002dprevious_002dpackage'><span><kbd>M-x ada-previous-package</kbd><a href='#index-ada_002dprevious_002dpackage' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>Move to previous package.
</p></dd>
<dt id='index-ada_002dmove_002dto_002dstart'><span><kbd>C-c C-a</kbd><a href='#index-ada_002dmove_002dto_002dstart' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>Move to matching start of <code>end</code> (<code>ada-move-to-start</code>). If
point is at the end of a subprogram, this command jumps to the
corresponding <code>begin</code> if the user option
<code>ada-move-to-declaration</code> is <code>nil</code> (default), otherwise it jumps to
the subprogram declaration.
</p></dd>
<dt id='index-ada_002dmove_002dto_002dend'><span><kbd>C-c C-e</kbd><a href='#index-ada_002dmove_002dto_002dend' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>Move point to end of current block (<code>ada-move-to-end</code>).
</p></dd>
<dt><span><kbd>C-c o</kbd></span></dt>
<dd><p>Switch between corresponding spec and body file
(<code>ff-find-other-file</code>). If point is in a subprogram, position
point on the corresponding declaration or body in the other file.
</p></dd>
<dt id='index-ada_002dgoto_002ddeclaration'><span><kbd>C-c c-d</kbd><a href='#index-ada_002dgoto_002ddeclaration' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>Move from any reference to its declaration, for from a declaration to
its body (for procedures, tasks, private and incomplete types).
</p></dd>
<dt id='index-ada_002dfind_002dreferences'><span><kbd>C-c C-r</kbd><a href='#index-ada_002dfind_002dreferences' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>Runs the <samp>gnatfind</samp> command to search for all references to the
identifier surrounding point (<code>ada-find-references</code>). Use
<kbd>C-x `</kbd> (<code>next-error</code>) to visit each reference (as for
compilation errors).
</p></dd>
</dl>
<p>If the <code>ada-xref-create-ali</code> variable is non-<code>nil</code>, Emacs
will try to run GNAT for you whenever cross-reference information is
needed, and is older than the current source file.
</p>
<hr>
</div>
<div class="chapter" id="Identifier-completion">
<div class="header">
<p>
Next: <a href="#Automatic-Smart-Indentation" accesskey="n" rel="next">Automatic Smart Indentation</a>, Previous: <a href="#Moving-Through-Ada-Code" accesskey="p" rel="prev">Moving Through Ada Code</a>, Up: <a href="#Top" accesskey="u" rel="up">Ada Mode</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Identifier-completion-1"></span><h2 class="chapter">8 Identifier completion</h2>
<p>Emacs and Ada mode provide two general ways for the completion of
identifiers. This is an easy way to type faster: you just have to type
the first few letters of an identifiers, and then loop through all the
possible completions.
</p>
<p>The first method is general for Emacs. It works by parsing all open
files for possible completions.
</p>
<p>For instance, if the words ‘<samp>my_identifier</samp>’, ‘<samp>my_subprogram</samp>’
are the only words starting with ‘<samp>my</samp>’ in any of the opened files,
then you will have this scenario:
</p>
<div class="example">
<pre class="example">You type: my<kbd>M-/</kbd>
Emacs inserts: ‘<samp>my_identifier</samp>’
If you press <kbd>M-/</kbd> once again, Emacs replaces ‘<samp>my_identifier</samp>’ with
‘<samp>my_subprogram</samp>’.
Pressing <kbd>M-/</kbd> once more will bring you back to ‘<samp>my_identifier</samp>’.
</pre></div>
<p>This is a very fast way to do completion, and the casing of words will
also be respected.
</p>
<p>The second method (<kbd>C-<span class="key">TAB</span></kbd>) is specific to Ada mode and the GNAT
compiler. Emacs will search the cross-information for possible
completions.
</p>
<p>The main advantage is that this completion is more accurate: only
existing identifier will be suggested.
</p>
<p>On the other hand, this completion is a little bit slower and requires
that you have compiled your file at least once since you created that
identifier.
</p>
<dl compact="compact">
<dt id='index-ada_002dcomplete_002didentifier'><span><kbd>C-<span class="key">TAB</span></kbd><a href='#index-ada_002dcomplete_002didentifier' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>Complete current identifier using cross-reference information.
</p></dd>
<dt><span><kbd>M-/</kbd></span></dt>
<dd><p>Complete identifier using buffer information (not Ada-specific).
</p></dd>
</dl>
<hr>
</div>
<div class="chapter" id="Automatic-Smart-Indentation">
<div class="header">
<p>
Next: <a href="#Formatting-Parameter-Lists" accesskey="n" rel="next">Formatting Parameter Lists</a>, Previous: <a href="#Identifier-completion" accesskey="p" rel="prev">Identifier completion</a>, Up: <a href="#Top" accesskey="u" rel="up">Ada Mode</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Automatic-Smart-Indentation-1"></span><h2 class="chapter">9 Automatic Smart Indentation</h2>
<p>Ada mode comes with a full set of rules for automatic indentation. You
can also configure the indentation, via the following variables:
</p>
<dl compact="compact">
<dt><span><code>ada-broken-indent</code> (default value: 2)</span></dt>
<dd><p>Number of columns to indent the continuation of a broken line.
</p>
</dd>
<dt><span><code>ada-indent</code> (default value: 3)</span></dt>
<dd><p>Number of columns for default indentation.
</p>
</dd>
<dt><span><code>ada-indent-record-rel-type</code> (default value: 3)</span></dt>
<dd><p>Indentation for <code>record</code> relative to <code>type</code> or <code>use</code>.
</p>
</dd>
<dt><span><code>ada-indent-return</code> (default value: 0)</span></dt>
<dd><p>Indentation for <code>return</code> relative to <code>function</code> (if
<code>ada-indent-return</code> is greater than 0), or the open parenthesis
(if <code>ada-indent-return</code> is negative or 0). Note that in the second
case, when there is no open parenthesis, the indentation is done
relative to <code>function</code> with the value of <code>ada-broken-indent</code>.
</p>
</dd>
<dt><span><code>ada-label-indent</code> (default value: -4)</span></dt>
<dd><p>Number of columns to indent a label.
</p>
</dd>
<dt><span><code>ada-stmt-end-indent</code> (default value: 0)</span></dt>
<dd><p>Number of columns to indent a statement <code>end</code> keyword on a separate line.
</p>
</dd>
<dt><span><code>ada-when-indent</code> (default value: 3)</span></dt>
<dd><p>Indentation for <code>when</code> relative to <code>exception</code> or <code>case</code>.
</p>
</dd>
<dt><span><code>ada-indent-is-separate</code> (default value: t)</span></dt>
<dd><p>Non-<code>nil</code> means indent <code>is separate</code> or <code>is abstract</code> if on a single line.
</p>
</dd>
<dt><span><code>ada-indent-to-open-paren</code> (default value: t)</span></dt>
<dd><p>Non-<code>nil</code> means indent according to the innermost open parenthesis.
</p>
</dd>
<dt><span><code>ada-indent-after-return</code> (default value: t)</span></dt>
<dd><p>Non-<code>nil</code> means that the current line will also be re-indented
before inserting a newline, when you press <tt class="key">RET</tt>.
</p></dd>
</dl>
<p>Most of the time, the indentation will be automatic, i.e., when you
press <tt class="key">RET</tt>, the cursor will move to the correct column on the
next line.
</p>
<p>You can also indent single lines, or the current region, with <tt class="key">TAB</tt>.
</p>
<p>Another mode of indentation exists that helps you to set up your
indentation scheme. If you press <kbd>C-c <span class="key">TAB</span></kbd>, Ada mode will do
the following:
</p>
<ul>
<li> Reindent the current line, as <tt class="key">TAB</tt> would do.
</li><li> Temporarily move the cursor to a reference line, i.e., the line that
was used to calculate the current indentation.
</li><li> Display in the message window the name of the variable that provided
the offset for the indentation.
</li></ul>
<p>The exact indentation of the current line is the same as the one for the
reference line, plus an offset given by the variable.
</p>
<dl compact="compact">
<dt><span><kbd><span class="key">TAB</span></kbd></span></dt>
<dd><p>Indent the current line or the current region.
</p></dd>
<dt><span><kbd>C-M-\</kbd></span></dt>
<dd><p>Indent lines in the current region.
</p></dd>
<dt><span><kbd>C-c <span class="key">TAB</span></kbd></span></dt>
<dd><p>Indent the current line and display the name of the variable used for
indentation.
</p></dd>
</dl>
<hr>
</div>
<div class="chapter" id="Formatting-Parameter-Lists">
<div class="header">
<p>
Next: <a href="#Automatic-Casing" accesskey="n" rel="next">Automatic Casing</a>, Previous: <a href="#Automatic-Smart-Indentation" accesskey="p" rel="prev">Automatic Smart Indentation</a>, Up: <a href="#Top" accesskey="u" rel="up">Ada Mode</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Formatting-Parameter-Lists-1"></span><h2 class="chapter">10 Formatting Parameter Lists</h2>
<dl compact="compact">
<dt id='index-ada_002dformat_002dparamlist'><span><kbd>C-c C-f</kbd><a href='#index-ada_002dformat_002dparamlist' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>Format the parameter list (<code>ada-format-paramlist</code>).
</p></dd>
</dl>
<p>This aligns the declarations on the colon (‘<samp>:</samp>’) separating
argument names and argument types, and aligns the <code>in</code>,
<code>out</code> and <code>in out</code> keywords.
</p>
<hr>
</div>
<div class="chapter" id="Automatic-Casing">
<div class="header">
<p>
Next: <a href="#Statement-Templates" accesskey="n" rel="next">Statement Templates</a>, Previous: <a href="#Formatting-Parameter-Lists" accesskey="p" rel="prev">Formatting Parameter Lists</a>, Up: <a href="#Top" accesskey="u" rel="up">Ada Mode</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Automatic-Casing-1"></span><h2 class="chapter">11 Automatic Casing</h2>
<p>Casing of identifiers, attributes and keywords is automatically
performed while typing when the variable <code>ada-auto-case</code> is set.
Every time you press a word separator, the previous word is
automatically cased.
</p>
<p>You can customize the automatic casing differently for keywords,
attributes and identifiers. The relevant variables are the following:
<code>ada-case-keyword</code>, <code>ada-case-attribute</code> and
<code>ada-case-identifier</code>.
</p>
<p>All these variables can have one of the following values:
</p>
<dl compact="compact">
<dt><span><code>downcase-word</code></span></dt>
<dd><p>The word will be lowercase. For instance <code>My_vARIable</code> is
converted to <code>my_variable</code>.
</p>
</dd>
<dt><span><code>upcase-word</code></span></dt>
<dd><p>The word will be uppercase. For instance <code>My_vARIable</code> is
converted to <code>MY_VARIABLE</code>.
</p>
</dd>
<dt><span><code>ada-capitalize-word</code></span></dt>
<dd><p>The first letter and each letter following an underscore (‘<samp>_</samp>’)
are uppercase, others are lowercase. For instance <code>My_vARIable</code>
is converted to <code>My_Variable</code>.
</p>
</dd>
<dt><span><code>ada-loose-case-word</code></span></dt>
<dd><p>Characters after an underscore ‘<samp>_</samp>’ character are uppercase,
others are not modified. For instance <code>My_vARIable</code> is converted
to <code>My_VARIable</code>.
</p></dd>
</dl>
<p>Ada mode allows you to define exceptions to these rules, in a file
specified by the variable <code>ada-case-exception-file</code>
(default <samp>~/.emacs_case_exceptions</samp>). Each line in this file
specifies the casing of one word or word fragment. Comments may be
included, separated from the word by a space.
</p>
<p>If the word starts with an asterisk (‘<samp>*</samp>’), it defines the casing
as a word fragment (or “substring”); part of a word between two
underscores or word boundary.
</p>
<p>For example:
</p>
<div class="example">
<pre class="example">DOD Department of Defense
*IO
GNAT The GNAT compiler from Ada Core Technologies
</pre></div>
<p>The word fragment <code>*IO</code> applies to any word containing “_io”;
<code>Text_IO</code>, <code>Hardware_IO</code>, etc.
</p>
<span id="index-ada_002dcreate_002dcase_002dexception"></span>
<p>There are two ways to add new items to this file: you can simply edit
it as you would edit any text file. Or you can position point on the
word you want to add, and select menu ‘<samp>Ada | Edit | Create Case
Exception</samp>’, or press <kbd>C-c C-y</kbd> (<code>ada-create-case-exception</code>).
The word will automatically be added to the current list of exceptions
and to the file.
</p>
<p>To define a word fragment case exception, select the word fragment,
then select menu ‘<samp>Ada | Edit | Create Case Exception Substring</samp>’.
</p>
<p>It is sometimes useful to have multiple exception files around (for
instance, one could be the standard Ada acronyms, the second some
company specific exceptions, and the last one some project specific
exceptions). If you set up the variable <code>ada-case-exception-file</code>
as a list of files, each of them will be parsed and used in your emacs
session. However, when you save a new exception through the menu, as
described above, the new exception will be added to the first file in
the list.
</p>
<dl compact="compact">
<dt id='index-ada_002dadjust_002dcase_002dbuffer'><span><kbd>C-c C-b</kbd><a href='#index-ada_002dadjust_002dcase_002dbuffer' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>Adjust case in the whole buffer (<code>ada-adjust-case-buffer</code>).
</p></dd>
<dt><span><kbd>C-c C-y</kbd></span></dt>
<dd><p>Create a new entry in the exception dictionary, with the word under
the cursor (<code>ada-create-case-exception</code>)
</p></dd>
<dt id='index-ada_002dcase_002dread_002dexceptions'><span><kbd>C-c C-t</kbd><a href='#index-ada_002dcase_002dread_002dexceptions' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>Rereads the exception dictionary from the file
<code>ada-case-exception-file</code> (<code>ada-case-read-exceptions</code>).
</p></dd>
</dl>
<hr>
</div>
<div class="chapter" id="Statement-Templates">
<div class="header">
<p>
Next: <a href="#Comment-Handling" accesskey="n" rel="next">Comment Handling</a>, Previous: <a href="#Automatic-Casing" accesskey="p" rel="prev">Automatic Casing</a>, Up: <a href="#Top" accesskey="u" rel="up">Ada Mode</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Statement-Templates-1"></span><h2 class="chapter">12 Statement Templates</h2>
<p>Templates are defined for most Ada statements, using the Emacs
“skeleton” package. They can be inserted in the buffer using the
following commands:
</p>
<dl compact="compact">
<dt id='index-ada_002dexception_002dblock'><span><kbd>C-c t b</kbd><a href='#index-ada_002dexception_002dblock' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>exception Block (<code>ada-exception-block</code>).
</p></dd>
<dt id='index-ada_002dcase'><span><kbd>C-c t c</kbd><a href='#index-ada_002dcase' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>case (<code>ada-case</code>).
</p></dd>
<dt id='index-ada_002ddeclare_002dblock'><span><kbd>C-c t d</kbd><a href='#index-ada_002ddeclare_002dblock' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>declare Block (<code>ada-declare-block</code>).
</p></dd>
<dt id='index-ada_002delse'><span><kbd>C-c t e</kbd><a href='#index-ada_002delse' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>else (<code>ada-else</code>).
</p></dd>
<dt id='index-ada_002dfor_002dloop'><span><kbd>C-c t f</kbd><a href='#index-ada_002dfor_002dloop' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>for Loop (<code>ada-for-loop</code>).
</p></dd>
<dt id='index-ada_002dheader'><span><kbd>C-c t h</kbd><a href='#index-ada_002dheader' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>Header (<code>ada-header</code>).
</p></dd>
<dt id='index-ada_002dif'><span><kbd>C-c t i</kbd><a href='#index-ada_002dif' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>if (<code>ada-if</code>).
</p></dd>
<dt id='index-ada_002dpackage_002dbody'><span><kbd>C-c t k</kbd><a href='#index-ada_002dpackage_002dbody' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>package Body (<code>ada-package-body</code>).
</p></dd>
<dt id='index-ada_002dloop'><span><kbd>C-c t l</kbd><a href='#index-ada_002dloop' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>loop (<code>ada-loop</code>).
</p></dd>
<dt id='index-ada_002dsubprogram_002dbody'><span><kbd>C-c p</kbd><a href='#index-ada_002dsubprogram_002dbody' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>subprogram body (<code>ada-subprogram-body</code>).
</p></dd>
<dt id='index-ada_002dtask_002dbody'><span><kbd>C-c t t</kbd><a href='#index-ada_002dtask_002dbody' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>task Body (<code>ada-task-body</code>).
</p></dd>
<dt id='index-ada_002dwhile'><span><kbd>C-c t w</kbd><a href='#index-ada_002dwhile' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>while Loop (<code>ada-while</code>).
</p></dd>
<dt id='index-ada_002duse'><span><kbd>C-c t u</kbd><a href='#index-ada_002duse' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>use (<code>ada-use</code>).
</p></dd>
<dt id='index-ada_002dexit'><span><kbd>C-c t x</kbd><a href='#index-ada_002dexit' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>exit (<code>ada-exit</code>).
</p></dd>
<dt id='index-ada_002darray'><span><kbd>C-c t C-a</kbd><a href='#index-ada_002darray' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>array (<code>ada-array</code>).
</p></dd>
<dt id='index-ada_002delsif'><span><kbd>C-c t C-e</kbd><a href='#index-ada_002delsif' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>elsif (<code>ada-elsif</code>).
</p></dd>
<dt id='index-ada_002dfunction_002dspec'><span><kbd>C-c t C-f</kbd><a href='#index-ada_002dfunction_002dspec' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>function Spec (<code>ada-function-spec</code>).
</p></dd>
<dt id='index-ada_002dpackage_002dspec'><span><kbd>C-c t C-k</kbd><a href='#index-ada_002dpackage_002dspec' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>package Spec (<code>ada-package-spec</code>).
</p></dd>
<dt id='index-ada_002dprocedure_002dspec'><span><kbd>C-c t C-p</kbd><a href='#index-ada_002dprocedure_002dspec' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>procedure Spec (<code>ada-package-spec</code>.
</p></dd>
<dt id='index-ada_002drecord'><span><kbd>C-c t C-r</kbd><a href='#index-ada_002drecord' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>record (<code>ada-record</code>).
</p></dd>
<dt id='index-ada_002dsubtype'><span><kbd>C-c t C-s</kbd><a href='#index-ada_002dsubtype' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>subtype (<code>ada-subtype</code>).
</p></dd>
<dt id='index-ada_002dtask_002dspec'><span><kbd>C-c t C-t</kbd><a href='#index-ada_002dtask_002dspec' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>task Spec (<code>ada-task-spec</code>).
</p></dd>
<dt id='index-ada_002dwith'><span><kbd>C-c t C-u</kbd><a href='#index-ada_002dwith' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>with (<code>ada-with</code>).
</p></dd>
<dt id='index-ada_002dprivate'><span><kbd>C-c t C-v</kbd><a href='#index-ada_002dprivate' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>private (<code>ada-private</code>).
</p></dd>
<dt id='index-ada_002dwhen'><span><kbd>C-c t C-w</kbd><a href='#index-ada_002dwhen' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>when (<code>ada-when</code>).
</p></dd>
<dt id='index-ada_002dexception'><span><kbd>C-c t C-x</kbd><a href='#index-ada_002dexception' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>exception (<code>ada-exception</code>).
</p></dd>
<dt id='index-ada_002dtype'><span><kbd>C-c t C-y</kbd><a href='#index-ada_002dtype' class='copiable-anchor'> ¶</a></span></dt>
<dd><p>type (<code>ada-type</code>).
</p></dd>
</dl>
<hr>
</div>
<div class="chapter" id="Comment-Handling">
<div class="header">
<p>
Next: <a href="#GNU-Free-Documentation-License" accesskey="n" rel="next">GNU Free Documentation License</a>, Previous: <a href="#Statement-Templates" accesskey="p" rel="prev">Statement Templates</a>, Up: <a href="#Top" accesskey="u" rel="up">Ada Mode</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Comment-Handling-1"></span><h2 class="chapter">13 Comment Handling</h2>
<p>By default, comment lines get indented like Ada code. There are a few
additional functions to handle comments:
</p>
<dl compact="compact">
<dt><span><kbd>M-;</kbd></span></dt>
<dd><p>Start a comment in default column.
</p></dd>
<dt><span><kbd>M-j</kbd></span></dt>
<dd><p>Continue comment on next line.
</p></dd>
<dt><span><kbd>C-c ;</kbd></span></dt>
<dd><p>Comment the selected region (add ‘<samp>--</samp>’ at the beginning of lines).
</p></dd>
<dt><span><kbd>C-c :</kbd></span></dt>
<dd><p>Uncomment the selected region
</p></dd>
<dt><span><kbd>M-q</kbd></span></dt>
<dd><p>autofill the current comment.
</p></dd>
</dl>
<hr>
</div>
<div class="appendix" id="GNU-Free-Documentation-License">
<div class="header">
<p>
Next: <a href="#Index" accesskey="n" rel="next">Index</a>, Previous: <a href="#Comment-Handling" accesskey="p" rel="prev">Comment Handling</a>, Up: <a href="#Top" accesskey="u" rel="up">Ada Mode</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="GNU-Free-Documentation-License-1"></span><h2 class="appendix">Appendix A GNU Free Documentation License</h2>
<div align="center">Version 1.3, 3 November 2008
</div>
<div class="display">
<pre class="display">Copyright © 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
<a href="https://fsf.org/">https://fsf.org/</a>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
</pre></div>
<ol start="0">
<li> PREAMBLE
<p>The purpose of this License is to make a manual, textbook, or other
functional and useful document <em>free</em> in the sense of freedom: to
assure everyone the effective freedom to copy and redistribute it,
with or without modifying it, either commercially or noncommercially.
Secondarily, this License preserves for the author and publisher a way
to get credit for their work, while not being considered responsible
for modifications made by others.
</p>
<p>This License is a kind of “copyleft”, which means that derivative
works of the document must themselves be free in the same sense. It
complements the GNU General Public License, which is a copyleft
license designed for free software.
</p>
<p>We have designed this License in order to use it for manuals for free
software, because free software needs free documentation: a free
program should come with manuals providing the same freedoms that the
software does. But this License is not limited to software manuals;
it can be used for any textual work, regardless of subject matter or
whether it is published as a printed book. We recommend this License
principally for works whose purpose is instruction or reference.
</p>
</li><li> APPLICABILITY AND DEFINITIONS
<p>This License applies to any manual or other work, in any medium, that
contains a notice placed by the copyright holder saying it can be
distributed under the terms of this License. Such a notice grants a
world-wide, royalty-free license, unlimited in duration, to use that
work under the conditions stated herein. The “Document”, below,
refers to any such manual or work. Any member of the public is a
licensee, and is addressed as “you”. You accept the license if you
copy, modify or distribute the work in a way requiring permission
under copyright law.
</p>
<p>A “Modified Version” of the Document means any work containing the
Document or a portion of it, either copied verbatim, or with
modifications and/or translated into another language.
</p>
<p>A “Secondary Section” is a named appendix or a front-matter section
of the Document that deals exclusively with the relationship of the
publishers or authors of the Document to the Document’s overall
subject (or to related matters) and contains nothing that could fall
directly within that overall subject. (Thus, if the Document is in
part a textbook of mathematics, a Secondary Section may not explain
any mathematics.) The relationship could be a matter of historical
connection with the subject or with related matters, or of legal,
commercial, philosophical, ethical or political position regarding
them.
</p>
<p>The “Invariant Sections” are certain Secondary Sections whose titles
are designated, as being those of Invariant Sections, in the notice
that says that the Document is released under this License. If a
section does not fit the above definition of Secondary then it is not
allowed to be designated as Invariant. The Document may contain zero
Invariant Sections. If the Document does not identify any Invariant
Sections then there are none.
</p>
<p>The “Cover Texts” are certain short passages of text that are listed,
as Front-Cover Texts or Back-Cover Texts, in the notice that says that
the Document is released under this License. A Front-Cover Text may
be at most 5 words, and a Back-Cover Text may be at most 25 words.
</p>
<p>A “Transparent” copy of the Document means a machine-readable copy,
represented in a format whose specification is available to the
general public, that is suitable for revising the document
straightforwardly with generic text editors or (for images composed of
pixels) generic paint programs or (for drawings) some widely available
drawing editor, and that is suitable for input to text formatters or
for automatic translation to a variety of formats suitable for input
to text formatters. A copy made in an otherwise Transparent file
format whose markup, or absence of markup, has been arranged to thwart
or discourage subsequent modification by readers is not Transparent.
An image format is not Transparent if used for any substantial amount
of text. A copy that is not “Transparent” is called “Opaque”.
</p>
<p>Examples of suitable formats for Transparent copies include plain
ASCII without markup, Texinfo input format, LaTeX input
format, SGML or XML using a publicly available
DTD, and standard-conforming simple HTML,
PostScript or PDF designed for human modification. Examples
of transparent image formats include PNG, XCF and
JPG. Opaque formats include proprietary formats that can be
read and edited only by proprietary word processors, SGML or
XML for which the DTD and/or processing tools are
not generally available, and the machine-generated HTML,
PostScript or PDF produced by some word processors for
output purposes only.
</p>
<p>The “Title Page” means, for a printed book, the title page itself,
plus such following pages as are needed to hold, legibly, the material
this License requires to appear in the title page. For works in
formats which do not have any title page as such, “Title Page” means
the text near the most prominent appearance of the work’s title,
preceding the beginning of the body of the text.
</p>
<p>The “publisher” means any person or entity that distributes copies
of the Document to the public.
</p>
<p>A section “Entitled XYZ” means a named subunit of the Document whose
title either is precisely XYZ or contains XYZ in parentheses following
text that translates XYZ in another language. (Here XYZ stands for a
specific section name mentioned below, such as “Acknowledgements”,
“Dedications”, “Endorsements”, or “History”.) To “Preserve the Title”
of such a section when you modify the Document means that it remains a
section “Entitled XYZ” according to this definition.
</p>
<p>The Document may include Warranty Disclaimers next to the notice which
states that this License applies to the Document. These Warranty
Disclaimers are considered to be included by reference in this
License, but only as regards disclaiming warranties: any other
implication that these Warranty Disclaimers may have is void and has
no effect on the meaning of this License.
</p>
</li><li> VERBATIM COPYING
<p>You may copy and distribute the Document in any medium, either
commercially or noncommercially, provided that this License, the
copyright notices, and the license notice saying this License applies
to the Document are reproduced in all copies, and that you add no other
conditions whatsoever to those of this License. You may not use
technical measures to obstruct or control the reading or further
copying of the copies you make or distribute. However, you may accept
compensation in exchange for copies. If you distribute a large enough
number of copies you must also follow the conditions in section 3.
</p>
<p>You may also lend copies, under the same conditions stated above, and
you may publicly display copies.
</p>
</li><li> COPYING IN QUANTITY
<p>If you publish printed copies (or copies in media that commonly have
printed covers) of the Document, numbering more than 100, and the
Document’s license notice requires Cover Texts, you must enclose the
copies in covers that carry, clearly and legibly, all these Cover
Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on
the back cover. Both covers must also clearly and legibly identify
you as the publisher of these copies. The front cover must present
the full title with all words of the title equally prominent and
visible. You may add other material on the covers in addition.
Copying with changes limited to the covers, as long as they preserve
the title of the Document and satisfy these conditions, can be treated
as verbatim copying in other respects.
</p>
<p>If the required texts for either cover are too voluminous to fit
legibly, you should put the first ones listed (as many as fit
reasonably) on the actual cover, and continue the rest onto adjacent
pages.
</p>
<p>If you publish or distribute Opaque copies of the Document numbering
more than 100, you must either include a machine-readable Transparent
copy along with each Opaque copy, or state in or with each Opaque copy
a computer-network location from which the general network-using
public has access to download using public-standard network protocols
a complete Transparent copy of the Document, free of added material.
If you use the latter option, you must take reasonably prudent steps,
when you begin distribution of Opaque copies in quantity, to ensure
that this Transparent copy will remain thus accessible at the stated
location until at least one year after the last time you distribute an
Opaque copy (directly or through your agents or retailers) of that
edition to the public.
</p>
<p>It is requested, but not required, that you contact the authors of the
Document well before redistributing any large number of copies, to give
them a chance to provide you with an updated version of the Document.
</p>
</li><li> MODIFICATIONS
<p>You may copy and distribute a Modified Version of the Document under
the conditions of sections 2 and 3 above, provided that you release
the Modified Version under precisely this License, with the Modified
Version filling the role of the Document, thus licensing distribution
and modification of the Modified Version to whoever possesses a copy
of it. In addition, you must do these things in the Modified Version:
</p>
<ol type="A" start="1">
<li> Use in the Title Page (and on the covers, if any) a title distinct
from that of the Document, and from those of previous versions
(which should, if there were any, be listed in the History section
of the Document). You may use the same title as a previous version
if the original publisher of that version gives permission.
</li><li> List on the Title Page, as authors, one or more persons or entities
responsible for authorship of the modifications in the Modified
Version, together with at least five of the principal authors of the
Document (all of its principal authors, if it has fewer than five),
unless they release you from this requirement.
</li><li> State on the Title page the name of the publisher of the
Modified Version, as the publisher.
</li><li> Preserve all the copyright notices of the Document.
</li><li> Add an appropriate copyright notice for your modifications
adjacent to the other copyright notices.
</li><li> Include, immediately after the copyright notices, a license notice
giving the public permission to use the Modified Version under the
terms of this License, in the form shown in the Addendum below.
</li><li> Preserve in that license notice the full lists of Invariant Sections
and required Cover Texts given in the Document’s license notice.
</li><li> Include an unaltered copy of this License.
</li><li> Preserve the section Entitled “History”, Preserve its Title, and add
to it an item stating at least the title, year, new authors, and
publisher of the Modified Version as given on the Title Page. If
there is no section Entitled “History” in the Document, create one
stating the title, year, authors, and publisher of the Document as
given on its Title Page, then add an item describing the Modified
Version as stated in the previous sentence.
</li><li> Preserve the network location, if any, given in the Document for
public access to a Transparent copy of the Document, and likewise
the network locations given in the Document for previous versions
it was based on. These may be placed in the “History” section.
You may omit a network location for a work that was published at
least four years before the Document itself, or if the original
publisher of the version it refers to gives permission.
</li><li> For any section Entitled “Acknowledgements” or “Dedications”, Preserve
the Title of the section, and preserve in the section all the
substance and tone of each of the contributor acknowledgements and/or
dedications given therein.
</li><li> Preserve all the Invariant Sections of the Document,
unaltered in their text and in their titles. Section numbers
or the equivalent are not considered part of the section titles.
</li><li> Delete any section Entitled “Endorsements”. Such a section
may not be included in the Modified Version.
</li><li> Do not retitle any existing section to be Entitled “Endorsements” or
to conflict in title with any Invariant Section.
</li><li> Preserve any Warranty Disclaimers.
</li></ol>
<p>If the Modified Version includes new front-matter sections or
appendices that qualify as Secondary Sections and contain no material
copied from the Document, you may at your option designate some or all
of these sections as invariant. To do this, add their titles to the
list of Invariant Sections in the Modified Version’s license notice.
These titles must be distinct from any other section titles.
</p>
<p>You may add a section Entitled “Endorsements”, provided it contains
nothing but endorsements of your Modified Version by various
parties—for example, statements of peer review or that the text has
been approved by an organization as the authoritative definition of a
standard.
</p>
<p>You may add a passage of up to five words as a Front-Cover Text, and a
passage of up to 25 words as a Back-Cover Text, to the end of the list
of Cover Texts in the Modified Version. Only one passage of
Front-Cover Text and one of Back-Cover Text may be added by (or
through arrangements made by) any one entity. If the Document already
includes a cover text for the same cover, previously added by you or
by arrangement made by the same entity you are acting on behalf of,
you may not add another; but you may replace the old one, on explicit
permission from the previous publisher that added the old one.
</p>
<p>The author(s) and publisher(s) of the Document do not by this License
give permission to use their names for publicity for or to assert or
imply endorsement of any Modified Version.
</p>
</li><li> COMBINING DOCUMENTS
<p>You may combine the Document with other documents released under this
License, under the terms defined in section 4 above for modified
versions, provided that you include in the combination all of the
Invariant Sections of all of the original documents, unmodified, and
list them all as Invariant Sections of your combined work in its
license notice, and that you preserve all their Warranty Disclaimers.
</p>
<p>The combined work need only contain one copy of this License, and
multiple identical Invariant Sections may be replaced with a single
copy. If there are multiple Invariant Sections with the same name but
different contents, make the title of each such section unique by
adding at the end of it, in parentheses, the name of the original
author or publisher of that section if known, or else a unique number.
Make the same adjustment to the section titles in the list of
Invariant Sections in the license notice of the combined work.
</p>
<p>In the combination, you must combine any sections Entitled “History”
in the various original documents, forming one section Entitled
“History”; likewise combine any sections Entitled “Acknowledgements”,
and any sections Entitled “Dedications”. You must delete all
sections Entitled “Endorsements.”
</p>
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<span id="ADDENDUM_003a-How-to-use-this-License-for-your-documents"></span><h3 class="heading">ADDENDUM: How to use this License for your documents</h3>
<p>To use this License in a document you have written, include a copy of
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<pre class="example"> Copyright (C) <var>year</var> <var>your name</var>.
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3
or any later version published by the Free Software Foundation;
with no Invariant Sections, no Front-Cover Texts, and no Back-Cover
Texts. A copy of the license is included in the section entitled ``GNU
Free Documentation License''.
</pre></div>
<p>If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts,
replace the “with…Texts.” line with this:
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<div class="example">
<pre class="example"> with the Invariant Sections being <var>list their titles</var>, with
the Front-Cover Texts being <var>list</var>, and with the Back-Cover Texts
being <var>list</var>.
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<hr>
</div>
<div class="unnumbered" id="Index">
<div class="header">
<p>
Previous: <a href="#GNU-Free-Documentation-License" accesskey="p" rel="prev">GNU Free Documentation License</a>, Up: <a href="#Top" accesskey="u" rel="up">Ada Mode</a> [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Index-1"></span><h2 class="unnumbered">Index</h2>
<table><tr><th valign="top">Jump to: </th><td><a class="summary-letter" href="#Index_fn_letter-A"><b>A</b></a>
</td></tr></table>
<table class="index-fn" border="0">
<tr><td></td><th align="left">Index Entry</th><td> </td><th align="left"> Section</th></tr>
<tr><td colspan="4"> <hr></td></tr>
<tr><th id="Index_fn_letter-A">A</th><td></td><td></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dadjust_002dcase_002dbuffer"><code>ada-adjust-case-buffer</code></a>:</td><td> </td><td valign="top"><a href="#Automatic-Casing">Automatic Casing</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002darray"><code>ada-array</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dcase"><code>ada-case</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dcase_002dread_002dexceptions"><code>ada-case-read-exceptions</code></a>:</td><td> </td><td valign="top"><a href="#Automatic-Casing">Automatic Casing</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dcomplete_002didentifier"><code>ada-complete-identifier</code></a>:</td><td> </td><td valign="top"><a href="#Identifier-completion">Identifier completion</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dcreate_002dcase_002dexception"><code>ada-create-case-exception</code></a>:</td><td> </td><td valign="top"><a href="#Automatic-Casing">Automatic Casing</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002ddeclare_002dblock"><code>ada-declare-block</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002delse"><code>ada-else</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002delsif"><code>ada-elsif</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dexception"><code>ada-exception</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dexception_002dblock"><code>ada-exception-block</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dexit"><code>ada-exit</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dfind_002dreferences"><code>ada-find-references</code></a>:</td><td> </td><td valign="top"><a href="#Moving-Through-Ada-Code">Moving Through Ada Code</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dfor_002dloop"><code>ada-for-loop</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dformat_002dparamlist"><code>ada-format-paramlist</code></a>:</td><td> </td><td valign="top"><a href="#Formatting-Parameter-Lists">Formatting Parameter Lists</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dfunction_002dspec"><code>ada-function-spec</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dgoto_002ddeclaration"><code>ada-goto-declaration</code></a>:</td><td> </td><td valign="top"><a href="#Moving-Through-Ada-Code">Moving Through Ada Code</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dheader"><code>ada-header</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dif"><code>ada-if</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dloop"><code>ada-loop</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dmove_002dto_002dend"><code>ada-move-to-end</code></a>:</td><td> </td><td valign="top"><a href="#Moving-Through-Ada-Code">Moving Through Ada Code</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dmove_002dto_002dstart"><code>ada-move-to-start</code></a>:</td><td> </td><td valign="top"><a href="#Moving-Through-Ada-Code">Moving Through Ada Code</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dnext_002dpackage"><code>ada-next-package</code></a>:</td><td> </td><td valign="top"><a href="#Moving-Through-Ada-Code">Moving Through Ada Code</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dnext_002dprocedure"><code>ada-next-procedure</code></a>:</td><td> </td><td valign="top"><a href="#Moving-Through-Ada-Code">Moving Through Ada Code</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dpackage_002dbody"><code>ada-package-body</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dpackage_002dspec"><code>ada-package-spec</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dprevious_002dpackage"><code>ada-previous-package</code></a>:</td><td> </td><td valign="top"><a href="#Moving-Through-Ada-Code">Moving Through Ada Code</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dprevious_002dprocedure"><code>ada-previous-procedure</code></a>:</td><td> </td><td valign="top"><a href="#Moving-Through-Ada-Code">Moving Through Ada Code</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dprivate"><code>ada-private</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dprocedure_002dspec"><code>ada-procedure-spec</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002drecord"><code>ada-record</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dsubprogram_002dbody"><code>ada-subprogram-body</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dsubtype"><code>ada-subtype</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dtask_002dbody"><code>ada-task-body</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dtask_002dspec"><code>ada-task-spec</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dtype"><code>ada-type</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002duse"><code>ada-use</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dwhen"><code>ada-when</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dwhile"><code>ada-while</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ada_002dwith"><code>ada-with</code></a>:</td><td> </td><td valign="top"><a href="#Statement-Templates">Statement Templates</a></td></tr>
<tr><td colspan="4"> <hr></td></tr>
</table>
<table><tr><th valign="top">Jump to: </th><td><a class="summary-letter" href="#Index_fn_letter-A"><b>A</b></a>
</td></tr></table>
</div>
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