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diff --git a/old_ada/doc/ada-mode.html b/old_ada/doc/ada-mode.html new file mode 100644 index 0000000..6788acb --- /dev/null +++ b/old_ada/doc/ada-mode.html @@ -0,0 +1,2288 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> +<html> +<!-- Created by GNU Texinfo 6.8, https://www.gnu.org/software/texinfo/ --> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> +<!-- Copyright (C) 1999-2019 Free Software Foundation, Inc. + +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". + +(a) The FSF's Back-Cover Text is: "You have the freedom to copy and +modify this GNU manual." --> +<title>Ada Mode</title> + +<meta name="description" content="Ada Mode"> +<meta name="keywords" content="Ada Mode"> +<meta name="resource-type" content="document"> +<meta name="distribution" content="global"> +<meta name="Generator" content="texi2any"> +<meta name="viewport" content="width=device-width,initial-scale=1"> + +<link href="#Top" rel="start" title="Top"> +<link href="#Index" rel="index" title="Index"> +<link href="#SEC_Contents" rel="contents" title="Table of Contents"> +<link href="#Overview" rel="next" title="Overview"> +<style type="text/css"> +<!-- +a.copiable-anchor {visibility: hidden; text-decoration: none; line-height: 0em} +a.summary-letter {text-decoration: none} +blockquote.indentedblock {margin-right: 0em} +div.display {margin-left: 3.2em} +div.example {margin-left: 3.2em} +kbd {font-style: oblique} +pre.display {font-family: inherit} +pre.format {font-family: inherit} +pre.menu-comment {font-family: serif} +pre.menu-preformatted {font-family: serif} +span.nolinebreak {white-space: nowrap} +span.roman {font-family: initial; font-weight: normal} +span.sansserif {font-family: sans-serif; font-weight: normal} +span:hover a.copiable-anchor {visibility: visible} +ul.no-bullet {list-style: none} +--> +</style> + + +</head> + +<body lang="en"> +<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. 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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: +</p> +<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>. +</pre></div> + +<p>If you have Invariant Sections without Cover Texts, or some other +combination of the three, merge those two alternatives to suit the +situation. +</p> +<p>If your document contains nontrivial examples of program code, we +recommend releasing these examples in parallel under your choice of +free software license, such as the GNU General Public License, +to permit their use in free software. +</p> + +<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> +</div> + + + +</body> +</html> |