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- Next: <a href="GDB_002fMI-Output-Syntax.html#GDB_002fMI-Output-Syntax" accesskey="n" rel="next">GDB/MI Output Syntax</a>, Up: <a href="GDB_002fMI-Command-Syntax.html#GDB_002fMI-Command-Syntax" accesskey="u" rel="up">GDB/MI Command Syntax</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
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- <a name="GDB_002fMI-Input-Syntax-1"></a>
- <h4 class="subsection">27.2.1 <small>GDB/MI</small> Input Syntax</h4>
-
- <a name="index-input-syntax-for-GDB_002fMI"></a>
- <a name="index-GDB_002fMI_002c-input-syntax"></a>
- <dl compact="compact">
- <dt><code><var>command</var> →</code></dt>
- <dd><p><code><var>cli-command</var> | <var>mi-command</var></code>
- </p>
- </dd>
- <dt><code><var>cli-command</var> →</code></dt>
- <dd><p><code>[ <var>token</var> ] <var>cli-command</var> <var>nl</var></code>, where
- <var>cli-command</var> is any existing <small>GDB</small> CLI command.
- </p>
- </dd>
- <dt><code><var>mi-command</var> →</code></dt>
- <dd><p><code>[ <var>token</var> ] "-" <var>operation</var> ( " " <var>option</var> )*
- <code>[</code> " --" <code>]</code> ( " " <var>parameter</var> )* <var>nl</var></code>
- </p>
- </dd>
- <dt><code><var>token</var> →</code></dt>
- <dd><p>"any sequence of digits"
- </p>
- </dd>
- <dt><code><var>option</var> →</code></dt>
- <dd><p><code>"-" <var>parameter</var> [ " " <var>parameter</var> ]</code>
- </p>
- </dd>
- <dt><code><var>parameter</var> →</code></dt>
- <dd><p><code><var>non-blank-sequence</var> | <var>c-string</var></code>
- </p>
- </dd>
- <dt><code><var>operation</var> →</code></dt>
- <dd><p><em>any of the operations described in this chapter</em>
- </p>
- </dd>
- <dt><code><var>non-blank-sequence</var> →</code></dt>
- <dd><p><em>anything, provided it doesn’t contain special characters such as
- "-", <var>nl</var>, """ and of course " "</em>
- </p>
- </dd>
- <dt><code><var>c-string</var> →</code></dt>
- <dd><p><code>""" <var>seven-bit-iso-c-string-content</var> """</code>
- </p>
- </dd>
- <dt><code><var>nl</var> →</code></dt>
- <dd><p><code>CR | CR-LF</code>
- </p></dd>
- </dl>
-
- <p>Notes:
- </p>
- <ul>
- <li> The CLI commands are still handled by the <small>MI</small> interpreter; their
- output is described below.
-
- </li><li> The <code><var>token</var></code>, when present, is passed back when the command
- finishes.
-
- </li><li> Some <small>MI</small> commands accept optional arguments as part of the parameter
- list. Each option is identified by a leading ‘<samp>-</samp>’ (dash) and may be
- followed by an optional argument parameter. Options occur first in the
- parameter list and can be delimited from normal parameters using
- ‘<samp>--</samp>’ (this is useful when some parameters begin with a dash).
- </li></ul>
-
- <p>Pragmatics:
- </p>
- <ul>
- <li> We want easy access to the existing CLI syntax (for debugging).
-
- </li><li> We want it to be easy to spot a <small>MI</small> operation.
- </li></ul>
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