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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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