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code_migration.html
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code_migration.html
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<h1 data-toc-skip>Migrating old code to the new mRpostman’s
syntax</h1>
<small class="dont-index">Source: <a href="https://github.com/allanvc/mRpostman/blob/master/vignettes/code_migration.Rmd"><code>vignettes/code_migration.Rmd</code></a></small>
<div class="hidden name"><code>code_migration.Rmd</code></div>
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<div id="introduction" class="section level2">
<h2 class="hasAnchor">
<a href="#introduction" class="anchor"></a>Introduction</h2>
<p>This vignette aims to provide an easy source of code migration
examples so old <code>mRpostman</code> users can transition between the
old version and the new format which implements an OO approach trough
the use of R6 class and methods.</p>
<p>This is the summary of the main modifications in the package between
versions <code>0.3.1</code> and <code>0.9.X</code>:</p>
<ul>
<li><p>All main functions, except <code>list_attachments</code> and the
custom-search helper functions, now are methods of the R6 class
<code>ImapConf</code>;</p></li>
<li><p>The way the connection token is passed through functions (now
methods) has changed. The connection handle is created inside
<code><a href="../reference/configure_imap.html">configure_imap()</a></code> (or <code>ImapCon$new()</code>) and
modified with custom requests from the methods that trigger IMAP
commands. As a consequence, the password is now hidden inside the curl
handle C pointer, resulting in a more secure token chain. This resulted
in changes in every request function. These functions (that are methods
now) do not use <code>config_handle()</code> anymore, and a call to
<code>curl::set_opt()</code> is made in every request function so that a
custom request is supplied or replaced by a new one in the original
handle.</p></li>
<li><p>The “by” argument used in search and fetch functions was replaced
by <code>use_uid</code>, which is a logical now with the default value
set as <code>FALSE</code>. This is equivalent to the former
<code>by = MSN</code> default configuration.</p></li>
<li><p>all functions that returned <code>invisible(0L)</code> now return
<code>invisible(TRUE)</code></p></li>
<li><p>Users that prefer a tidy approach, only need to apply the pipe
<code>%>%</code> operator between search and fetch methods (or other
complementary operations), in which messages’ ids are carried from one
level to another. The exposition pipe <code>%$%</code> is not necessary
anymore.</p></li>
</ul>
<p>In the following sections, we present some code migration examples
between the old and the new version of <code>mRpostman</code>.</p>
</div>
<div id="configuring-the-imap-connection" class="section level2">
<h2 class="hasAnchor">
<a href="#configuring-the-imap-connection" class="anchor"></a>1) Configuring the IMAP connection</h2>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb1"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="kw"><a href="https://rdrr.io/r/base/library.html">library</a></span><span class="op">(</span><span class="va"><a href="https://allanvc.github.io/mRpostman/">mRpostman</a></span><span class="op">)</span></span>
<span></span>
<span><span class="co"># Outlook - Office 365</span></span>
<span><span class="va">imapconf</span> <span class="op"><-</span> <span class="fu"><a href="../reference/configure_imap.html">configure_imap</a></span><span class="op">(</span>url<span class="op">=</span><span class="st">"imaps://outlook.office365.com"</span>,</span>
<span> username<span class="op">=</span><span class="st">"your_user@company.com"</span>,</span>
<span> password<span class="op">=</span><span class="fu">rstudioapi</span><span class="fu">::</span><span class="fu"><a href="https://rstudio.github.io/rstudioapi/reference/askForPassword.html">askForPassword</a></span><span class="op">(</span><span class="op">)</span><span class="op">)</span></span>
<span></span>
<span><span class="co"># other mail providers that were tested: Gmail (imaps://imap.gmail.com), </span></span>
<span><span class="co"># Hotmail ("imaps://imap-mail.outlook.com"), Yahoo (imaps://imap.mail.yahoo.com/), </span></span>
<span><span class="co"># AOL (imaps://export.imap.aol.com/), Yandex (imaps://imap.yandex.com)</span></span></code></pre></div>
<p><br></p>
<p>New format:</p>
<div class="sourceCode" id="cb2"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="kw"><a href="https://rdrr.io/r/base/library.html">library</a></span><span class="op">(</span><span class="va"><a href="https://allanvc.github.io/mRpostman/">mRpostman</a></span><span class="op">)</span></span>
<span></span>
<span><span class="co"># Outlook - Office 365</span></span>
<span><span class="va">con</span> <span class="op"><-</span> <span class="fu"><a href="../reference/configure_imap.html">configure_imap</a></span><span class="op">(</span>url<span class="op">=</span><span class="st">"imaps://outlook.office365.com"</span>,</span>
<span> username<span class="op">=</span><span class="st">"your_user@company.com"</span>,</span>
<span> password<span class="op">=</span><span class="fu">rstudioapi</span><span class="fu">::</span><span class="fu"><a href="https://rstudio.github.io/rstudioapi/reference/askForPassword.html">askForPassword</a></span><span class="op">(</span><span class="op">)</span><span class="op">)</span></span>
<span></span>
<span><span class="co"># alternative</span></span>
<span><span class="va">con</span> <span class="op"><-</span> <span class="va"><a href="../reference/ImapCon.html">ImapCon</a></span><span class="op">$</span><span class="fu">new</span><span class="op">(</span>url<span class="op">=</span><span class="st">"imaps://outlook.office365.com"</span>,</span>
<span> username<span class="op">=</span><span class="st">"your_user@company.com"</span>,</span>
<span> password<span class="op">=</span><span class="fu">rstudioapi</span><span class="fu">::</span><span class="fu"><a href="https://rstudio.github.io/rstudioapi/reference/askForPassword.html">askForPassword</a></span><span class="op">(</span><span class="op">)</span><span class="op">)</span></span></code></pre></div>
</div>
<p>Although the object that is created is different (now we have an R6
<code>ImapCon</code> class), the code to create a connection object is
pretty much the same, but with an alternative that uses the “initialize”
method of the R6 class.</p>
<p>Other useful options are <code>timeout_ms</code>,
<code>verbose = TRUE</code>, and <code>buffersize</code>. Further ‘curl’
options related to IMAP functionalities can be passed to
<code><a href="../reference/configure_imap.html">configure_imap()</a></code>, depending on the libcurl version
installed on the user’s machine. See <code><a href="https://rdrr.io/pkg/curl/man/curl_options.html">curl::curl_options()</a></code>.
In this new version, there is an important curl parameter exposed,
<code>xoauth2_bearer</code>, which enables OAuth2.0 authentication. For
more details, check the <a href="https://allanvc.github.io/mRpostman/articles/xoauth2.0.html"><em>“IMAP
OAuth2.0 authentication in mRpostman”</em></a> vignette.</p>
</div>
<div id="listing-server-capabilities" class="section level2">
<h2 class="hasAnchor">
<a href="#listing-server-capabilities" class="anchor"></a>2) Listing Server Capabilities</h2>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb3"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">list_server_capabilities</span><span class="op">(</span><span class="op">)</span></span></code></pre></div>
<p>New format:</p>
<div class="sourceCode" id="cb4"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">list_server_capabilities</span><span class="op">(</span><span class="op">)</span></span></code></pre></div>
</div>
</div>
<div id="mailbox-commands" class="section level2">
<h2 class="hasAnchor">
<a href="#mailbox-commands" class="anchor"></a>3) Mailbox Commands</h2>
<div id="listing-mail-folders" class="section level3">
<h3 class="hasAnchor">
<a href="#listing-mail-folders" class="anchor"></a>3.1) Listing mail folders</h3>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb5"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="co"># Listing</span></span>
<span><span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">list_mailboxes</span><span class="op">(</span><span class="op">)</span></span></code></pre></div>
<p>New format:</p>
<div class="sourceCode" id="cb6"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="co"># Listing</span></span>
<span><span class="va">con</span><span class="op">$</span><span class="fu">list_folders</span><span class="op">(</span><span class="op">)</span></span></code></pre></div>
</div>
</div>
<div id="folder-selection" class="section level3">
<h3 class="hasAnchor">
<a href="#folder-selection" class="anchor"></a>3.2) Folder selection</h3>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb7"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">select_mailbox</span><span class="op">(</span>mbox <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span> <span class="co"># only INBOX is case sensitive</span></span></code></pre></div>
<p>New format:</p>
<div class="sourceCode" id="cb8"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">select_folder</span><span class="op">(</span>name <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span></span></code></pre></div>
</div>
</div>
<div id="examining-a-mail-folder" class="section level3">
<h3 class="hasAnchor">
<a href="#examining-a-mail-folder" class="anchor"></a>3.3) Examining a mail folder</h3>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb9"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">select_mailbox</span><span class="op">(</span>mbox <span class="op">=</span> <span class="st">"K-State"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">examine_mailbox</span><span class="op">(</span><span class="op">)</span></span></code></pre></div>
<p>New format:</p>
<div class="sourceCode" id="cb10"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">select_folder</span><span class="op">(</span>name <span class="op">=</span> <span class="st">"K-State"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">con</span><span class="op">$</span><span class="fu">examine_folder</span><span class="op">(</span><span class="op">)</span></span></code></pre></div>
</div>
<p>In the new format, the previously selected folder is kept during the
session unless you execute a new selection.</p>
</div>
<div id="renaming-a-mail-folder" class="section level3">
<h3 class="hasAnchor">
<a href="#renaming-a-mail-folder" class="anchor"></a>3.4) Renaming a mail folder</h3>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb11"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">select_mailbox</span><span class="op">(</span>mbox <span class="op">=</span> <span class="st">"CRAN messages"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">rename_mailbox</span><span class="op">(</span>new_name <span class="op">=</span> <span class="st">"CRAN messages2"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">list_mailboxes</span><span class="op">(</span><span class="op">)</span> <span class="co"># and list again to check</span></span></code></pre></div>
<p><br><br></p>
<p>New format:</p>
<div class="sourceCode" id="cb12"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">select_folder</span><span class="op">(</span>name <span class="op">=</span> <span class="st">"CRAN messages"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">con</span><span class="op">$</span><span class="fu">rename_folder</span><span class="op">(</span>new_name <span class="op">=</span> <span class="st">"CRAN messages2"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">con</span><span class="op">$</span><span class="fu">list_mail_folders</span><span class="op">(</span><span class="op">)</span> <span class="co"># and list again to check</span></span></code></pre></div>
</div>
</div>
</div>
<div id="single-search" class="section level2">
<h2 class="hasAnchor">
<a href="#single-search" class="anchor"></a>4) Single Search</h2>
<p>All search functions now return only the message ids.</p>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb13"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">result</span> <span class="op"><-</span> <span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">select_mailbox</span><span class="op">(</span>mbox <span class="op">=</span> <span class="st">"K-State"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">search_before</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"02-May-2019"</span>, </span>
<span> by <span class="op">=</span> <span class="st">"UID"</span>, </span>
<span> flag <span class="op">=</span> <span class="st">"UNANSWERED"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">result</span><span class="op">$</span><span class="va">msg_id</span></span></code></pre></div>
<p><br><br><br><br> New format:</p>
<div class="sourceCode" id="cb14"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">select_folder</span><span class="op">(</span>name <span class="op">=</span> <span class="st">"K-State"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">result</span> <span class="op"><-</span> <span class="va">con</span><span class="op">$</span><span class="fu">search_before</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"02-May-2019"</span>,</span>
<span> use_uid <span class="op">=</span> <span class="cn">TRUE</span>,</span>
<span> flag <span class="op">=</span> <span class="st">"UNANSWERED"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">result</span></span></code></pre></div>
</div>
<p>You can also <strong>NEGATE</strong> the statement to search for
messages <strong>NOT BEFORE a date</strong>:</p>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb15"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">results</span> <span class="op"><-</span> <span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">select_mailbox</span><span class="op">(</span>mbox <span class="op">=</span> <span class="st">"K-State"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">search_before</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"02-May-2019"</span>, </span>
<span> negate <span class="op">=</span> <span class="cn">TRUE</span>, </span>
<span> by <span class="op">=</span> <span class="st">"UID"</span>, </span>
<span> flag <span class="op">=</span> <span class="st">"UNANSWERED"</span>,</span>
<span> esearch <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span></span>
<span></span>
<span><span class="va">results</span><span class="op">$</span><span class="va">msg_id</span></span></code></pre></div>
<p>New format:</p>
<div class="sourceCode" id="cb16"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">select_folder</span><span class="op">(</span>name <span class="op">=</span> <span class="st">"K-State"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">result</span> <span class="op"><-</span> <span class="va">con</span><span class="op">$</span><span class="fu">search_before</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"02-May-2019"</span>,</span>
<span> use_uid <span class="op">=</span> <span class="cn">TRUE</span>,</span>
<span> flag <span class="op">=</span> <span class="st">"UNANSWERED"</span>,</span>
<span> negate <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span></span>
<span></span>
<span><span class="va">result</span></span></code></pre></div>
</div>
<p>This pattern is applied to all SEARCH functions.</p>
<p>Special attention should be paid to the <code>search_string</code>
and <code>search_flag</code> methods due to changes in the names and
order of the arguments.</p>
<div id="search-by-string---example-1" class="section level4">
<h4 class="hasAnchor">
<a href="#search-by-string---example-1" class="anchor"></a>Search by string - example 1</h4>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb17"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">results</span> <span class="op"><-</span> <span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">select_mailbox</span><span class="op">(</span>mbox <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">search_string</span><span class="op">(</span>section_or_field <span class="op">=</span> <span class="st">"FROM"</span>, string <span class="op">=</span> <span class="st">"hadley@rstudio.com"</span>,</span>
<span> negate <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span> <span class="co"># not FROM "hadley@rstudio.com"</span></span>
<span></span>
<span><span class="va">results</span><span class="op">$</span><span class="va">msg_id</span></span></code></pre></div>
<p><br><br></p>
<p>New format:</p>
<div class="sourceCode" id="cb18"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">select_folder</span><span class="op">(</span>name <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">result</span> <span class="op"><-</span> <span class="va">con</span><span class="op">$</span><span class="fu">search_string</span><span class="op">(</span>expr <span class="op">=</span> <span class="st">"hadley@rstudio.com"</span>,</span>
<span> where <span class="op">=</span> <span class="st">"FROM"</span>,</span>
<span> negate <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span> <span class="co"># not FROM "hadley@rstudio.com"</span></span>
<span></span>
<span><span class="va">result</span></span></code></pre></div>
</div>
</div>
<div id="search-by-string---example-2" class="section level4">
<h4 class="hasAnchor">
<a href="#search-by-string---example-2" class="anchor"></a>Search by string - example 2</h4>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb19"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">results</span> <span class="op"><-</span> <span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">select_mailbox</span><span class="op">(</span>mbox <span class="op">=</span> <span class="st">"K-State"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">search_string</span><span class="op">(</span>section_or_field <span class="op">=</span> <span class="st">"TEXT"</span>, string <span class="op">=</span> <span class="st">"Dear Allan"</span><span class="op">)</span></span></code></pre></div>
<p><br><br></p>
<p>New format:</p>
<div class="sourceCode" id="cb20"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">select_folder</span><span class="op">(</span>name <span class="op">=</span> <span class="st">"K-State"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">result</span> <span class="op"><-</span> <span class="va">con</span><span class="op">$</span><span class="fu">search_string</span><span class="op">(</span>expr <span class="op">=</span> <span class="st">"Dear Allan"</span>, where <span class="op">=</span> <span class="st">"TEXT"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">result</span></span></code></pre></div>
</div>
<div id="search-by-flag" class="section level4">
<h4 class="hasAnchor">
<a href="#search-by-flag" class="anchor"></a>Search by flag</h4>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb21"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">results</span> <span class="op"><-</span> <span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">select_mailbox</span><span class="op">(</span>mbox <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">search_flag</span><span class="op">(</span>flag <span class="op">=</span> <span class="st">"RECENT"</span>, by <span class="op">=</span> <span class="st">"UID"</span><span class="op">)</span></span></code></pre></div>
<p><br><br><br></p>
<p>New format:</p>
<div class="sourceCode" id="cb22"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">select_folder</span><span class="op">(</span>name <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">result</span> <span class="op"><-</span> <span class="va">con</span><span class="op">$</span><span class="fu">search_flag</span><span class="op">(</span>expr <span class="op">=</span> <span class="st">"RECENT"</span>, use_uid <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span></span>
<span></span>
<span><span class="va">result</span></span></code></pre></div>
</div>
<p>Now you can check which flags are available in a mail folder with the
<code>list_flags()</code> method. Also, you can pass multiple flags as
the search criterion.</p>
</div>
</div>
<div id="custom-search" class="section level2">
<h2 class="hasAnchor">
<a href="#custom-search" class="anchor"></a>5) Custom Search</h2>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb23"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">results</span> <span class="op"><-</span> <span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">select_mailbox</span><span class="op">(</span>mbox <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">custom_search</span><span class="op">(</span>custom_request <span class="op">=</span> </span>
<span> <span class="fu"><a href="../reference/AND.html">AND</a></span><span class="op">(</span></span>
<span> <span class="fu"><a href="../reference/string.html">string</a></span><span class="op">(</span>section_or_field <span class="op">=</span> <span class="st">"FROM"</span>, string <span class="op">=</span> <span class="st">"@toronto"</span><span class="op">)</span>,</span>
<span> <span class="fu"><a href="../reference/before.html">before</a></span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"12-Apr-2019"</span><span class="op">)</span></span>
<span> <span class="op">)</span></span>
<span> <span class="op">)</span></span>
<span></span>
<span><span class="va">results</span><span class="op">$</span><span class="va">msg_id</span></span></code></pre></div>
<p>New format:</p>
<div class="sourceCode" id="cb24"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">select_folder</span><span class="op">(</span>name <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">result</span> <span class="op"><-</span> <span class="va">con</span><span class="op">$</span><span class="fu">search</span><span class="op">(</span>custom_request <span class="op">=</span> </span>
<span> <span class="fu"><a href="../reference/AND.html">AND</a></span><span class="op">(</span></span>
<span> <span class="fu"><a href="../reference/string.html">string</a></span><span class="op">(</span>expr <span class="op">=</span> <span class="st">"@toronto"</span>, where <span class="op">=</span> <span class="st">"FROM"</span><span class="op">)</span>,</span>
<span> <span class="fu"><a href="../reference/before.html">before</a></span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"12-Apr-2019"</span><span class="op">)</span></span>
<span> <span class="op">)</span></span>
<span> <span class="op">)</span></span>
<span><span class="va">result</span></span></code></pre></div>
</div>
</div>
<div id="fetch" class="section level2">
<h2 class="hasAnchor">
<a href="#fetch" class="anchor"></a>6) Fetch</h2>
<div id="fetch-body" class="section level3">
<h3 class="hasAnchor">
<a href="#fetch-body" class="anchor"></a>6.1) Fetch body</h3>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb25"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">results</span> <span class="op"><-</span> <span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">select_mailbox</span><span class="op">(</span>mbox <span class="op">=</span> <span class="st">"K-State"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">search_before</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"10-Mar-2019"</span>, by <span class="op">=</span> <span class="st">"UID"</span><span class="op">)</span> <span class="op">%$%</span> <span class="co">#exposition pipe operator</span></span>
<span> <span class="fu">fetch_full_msg</span><span class="op">(</span>imapconf <span class="op">=</span> <span class="va">imapconf</span>, msg_id <span class="op">=</span> <span class="va">msg_id</span>,</span>
<span> by<span class="op">=</span><span class="st">"UID"</span>, write_to_disk <span class="op">=</span> <span class="cn">TRUE</span>, keep_in_mem <span class="op">=</span> <span class="cn">TRUE</span>,</span>
<span> partial <span class="op">=</span> <span class="st">"0.789"</span><span class="op">)</span></span></code></pre></div>
<p>New format:</p>
<div class="sourceCode" id="cb26"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">select_folder</span><span class="op">(</span>name <span class="op">=</span> <span class="st">"K-State"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">results</span> <span class="op"><-</span> <span class="va">con</span><span class="op">$</span><span class="fu">search_before</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"10-Mar-2019"</span>, use_uid <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span> <span class="co">#regular pipe</span></span>
<span> <span class="va">con</span><span class="op">$</span><span class="fu">fetch_body</span><span class="op">(</span>use_uid <span class="op">=</span> <span class="cn">TRUE</span>, write_to_disk <span class="op">=</span> <span class="cn">TRUE</span>, </span>
<span> keep_in_mem <span class="op">=</span> <span class="cn">TRUE</span>, partial <span class="op">=</span> <span class="st">"0.789"</span><span class="op">)</span></span></code></pre></div>
</div>
</div>
<div id="fetch-header" class="section level3">
<h3 class="hasAnchor">
<a href="#fetch-header" class="anchor"></a>6.2) Fetch header</h3>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb27"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">results</span> <span class="op"><-</span> <span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">select_mailbox</span><span class="op">(</span>mbox <span class="op">=</span> <span class="st">"K-State"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">search_since</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"15-Aug-2019"</span>, by <span class="op">=</span> <span class="st">"UID"</span><span class="op">)</span> <span class="op">%$%</span> <span class="co">#exposition pipe operator</span></span>
<span> <span class="fu">fetch_msg_header</span><span class="op">(</span>imapconf <span class="op">=</span> <span class="va">imapconf</span>, </span>
<span> msg_id <span class="op">=</span> <span class="va">msg_id</span>, </span>
<span> fields <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html">c</a></span><span class="op">(</span><span class="st">"DATE"</span>, <span class="st">"SUBJECT"</span><span class="op">)</span>,</span>
<span> by <span class="op">=</span> <span class="st">"UID"</span><span class="op">)</span></span></code></pre></div>
<p>New format:</p>
<div class="sourceCode" id="cb28"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">select_folder</span><span class="op">(</span>name <span class="op">=</span> <span class="st">"K-State"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">results</span> <span class="op"><-</span> <span class="va">con</span><span class="op">$</span><span class="fu">search_since</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"15-Aug-2019"</span>, use_uid <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span> <span class="co">#regular pipe</span></span>
<span> <span class="va">con</span><span class="op">$</span><span class="fu">fetch_header</span><span class="op">(</span>use_uid <span class="op">=</span> <span class="cn">TRUE</span>, fields <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html">c</a></span><span class="op">(</span><span class="st">"DATE"</span>, <span class="st">"SUBJECT"</span><span class="op">)</span><span class="op">)</span></span></code></pre></div>
</div>
</div>
<div id="fetch-text" class="section level3">
<h3 class="hasAnchor">
<a href="#fetch-text" class="anchor"></a>6.3) Fetch text</h3>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb29"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">results</span> <span class="op"><-</span> <span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">select_mailbox</span><span class="op">(</span>mbox <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">search_since</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"17-Aug-2019"</span>, by <span class="op">=</span> <span class="st">"UID"</span><span class="op">)</span> <span class="op">%$%</span> <span class="co">#exposition pipe operator</span></span>
<span> <span class="fu">fetch_msg_text</span><span class="op">(</span>imapconf <span class="op">=</span> <span class="va">imapconf</span>, msg_id <span class="op">=</span> <span class="va">msg_id</span>, by <span class="op">=</span> <span class="st">"UID"</span>, try_b64decode <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span></span></code></pre></div>
<p>New format:</p>
<div class="sourceCode" id="cb30"><pre class="sourceCode r"><code class="sourceCode r"><span id="cb30-1"><a href="#cb30-1" aria-hidden="true" tabindex="-1"></a>con<span class="sc">$</span><span class="fu">select_folder</span>(<span class="at">name =</span> <span class="st">"INBOX"</span>)</span>
<span id="cb30-2"><a href="#cb30-2" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb30-3"><a href="#cb30-3" aria-hidden="true" tabindex="-1"></a>results <span class="ot"><-</span> con<span class="sc">$</span><span class="fu">search_since</span>(<span class="at">date_char =</span> <span class="st">"17-Aug-2019"</span>, <span class="at">use_uid =</span> <span class="cn">TRUE</span>) <span class="sc">%>%</span> <span class="co">#regular pipe</span></span>
<span id="cb30-4"><a href="#cb30-4" aria-hidden="true" tabindex="-1"></a> con<span class="sc">$</span><span class="fu">fetch_text</span>(<span class="at">use_uid =</span> <span class="cn">TRUE</span>, <span class="at">base64_decode =</span> <span class="cn">TRUE</span>)<span class="er">)</span></span></code></pre></div>
</div>
</div>
<div id="fetch-metadata" class="section level3">
<h3 class="hasAnchor">
<a href="#fetch-metadata" class="anchor"></a>6.4) Fetch metadata</h3>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb31"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">results</span> <span class="op"><-</span> <span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">select_mailbox</span><span class="op">(</span>mbox <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">search_on</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"10-May-2019"</span>, by <span class="op">=</span> <span class="st">"UID"</span><span class="op">)</span> <span class="op">%$%</span> <span class="co">#exposition pipe operator</span></span>
<span> <span class="fu">fetch_msg_metadata</span><span class="op">(</span><span class="va">imapconf</span>, msg_id <span class="op">=</span> <span class="va">msg_id</span>, by <span class="op">=</span> <span class="st">"UID"</span>,</span>
<span> metadata <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html">c</a></span><span class="op">(</span><span class="st">"INTERNALDATE"</span>, <span class="st">"UID"</span>, <span class="st">"ENVELOPE"</span><span class="op">)</span><span class="op">)</span></span></code></pre></div>
<p>New format:</p>
<div class="sourceCode" id="cb32"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">select_folder</span><span class="op">(</span>name <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">results</span> <span class="op"><-</span> <span class="va">con</span><span class="op">$</span><span class="fu">search_since</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"10-May-2019"</span>, use_uid <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span> <span class="co">#regular pipe</span></span>
<span> <span class="va">con</span><span class="op">$</span><span class="fu">fetch_text</span><span class="op">(</span>use_uid <span class="op">=</span> <span class="cn">TRUE</span>, attribute <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html">c</a></span><span class="op">(</span><span class="st">"INTERNALDATE"</span>, <span class="st">"UID"</span>, <span class="st">"ENVELOPE"</span><span class="op">)</span><span class="op">)</span></span></code></pre></div>
</div>
<p>You can check the available metadata attributes with
<code><a href="../reference/metadata_options.html">metadata_options()</a></code>.</p>
</div>
</div>
<div id="attachments" class="section level2">
<h2 class="hasAnchor">
<a href="#attachments" class="anchor"></a>7) Attachments</h2>
<div id="attachments-listing" class="section level3">
<h3 class="hasAnchor">
<a href="#attachments-listing" class="anchor"></a>7.1) Attachments listing</h3>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb33"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">select_mailbox</span><span class="op">(</span>mbox <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">search_on</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"23-Sep-2019"</span><span class="op">)</span> <span class="op">%$%</span></span>
<span> <span class="fu">fetch_full_msg</span><span class="op">(</span><span class="va">imapconf</span>, msg_id<span class="op">=</span><span class="va">msg_id</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu"><a href="../reference/list_attachments.html">list_attachments</a></span><span class="op">(</span><span class="op">)</span></span></code></pre></div>
<p><br><br></p>
<p>New format:</p>
<div class="sourceCode" id="cb34"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">select_folder</span><span class="op">(</span>name <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">results</span> <span class="op"><-</span> <span class="va">con</span><span class="op">$</span><span class="fu">search_on</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"23-Sep-2019"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span> <span class="co">#regular pipe</span></span>
<span> <span class="va">con</span><span class="op">$</span><span class="fu">fetch_body</span><span class="op">(</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span> <span class="co"># or fetch_text()</span></span>
<span> <span class="fu"><a href="../reference/list_attachments.html">list_attachments</a></span><span class="op">(</span><span class="op">)</span></span></code></pre></div>
</div>
<p>Note that <code>list_attachment()</code> is an independent function.
It is not a method of the <code>ImapCon</code> class that depends on the
connection object.</p>
<p>The new version brings an alternative fetch method
(<code>fetch_atachments_list()</code>) for listing attachments without
the need of previously executing a <code>fetch_body</code> or
<code>fetch_text</code> operation:</p>
<div class="sourceCode" id="cb35"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">select_folder</span><span class="op">(</span>name <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">con</span><span class="op">$</span><span class="fu">search_on</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"23-Sep-2019"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span> <span class="co">#regular pipe</span></span>
<span> <span class="va">con</span><span class="op">$</span><span class="fu">fetch_attachments_list</span><span class="op">(</span><span class="op">)</span></span></code></pre></div>
</div>
<div id="attachments-extraction" class="section level3">
<h3 class="hasAnchor">
<a href="#attachments-extraction" class="anchor"></a>7.2) Attachments Extraction</h3>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb36"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">select_mailbox</span><span class="op">(</span>mbox <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">search_on</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"23-Sep-2019"</span><span class="op">)</span> <span class="op">%$%</span></span>
<span> <span class="fu">fetch_full_msg</span><span class="op">(</span><span class="va">imapconf</span>, msg_id<span class="op">=</span><span class="va">msg_id</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">get_attachments</span><span class="op">(</span><span class="op">)</span></span></code></pre></div>
<p><br><br></p>
<p>New format:</p>
<div class="sourceCode" id="cb37"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">select_folder</span><span class="op">(</span>name <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">results</span> <span class="op"><-</span> <span class="va">con</span><span class="op">$</span><span class="fu">search_on</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"23-Sep-2019"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span> <span class="co">#regular pipe</span></span>
<span> <span class="va">con</span><span class="op">$</span><span class="fu">fetch_body</span><span class="op">(</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span> <span class="co"># or fetch_text()</span></span>
<span> <span class="fu">get_attachments</span><span class="op">(</span><span class="op">)</span></span></code></pre></div>
</div>
<p>The new version brings an alternative fetch method
(<code>fetch_atachments()</code>) for downloading attachments without
the need of previously executing a <code>fetch_body</code> or
<code>fetch_text</code> operation:</p>
<div class="sourceCode" id="cb38"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">select_folder</span><span class="op">(</span>name <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">con</span><span class="op">$</span><span class="fu">search_on</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"23-Sep-2019"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span> <span class="co">#regular pipe</span></span>
<span> <span class="va">con</span><span class="op">$</span><span class="fu">fetch_attachments</span><span class="op">(</span><span class="op">)</span></span></code></pre></div>
</div>
</div>
<div id="complementary-operations" class="section level2">
<h2 class="hasAnchor">
<a href="#complementary-operations" class="anchor"></a>8) Complementary Operations</h2>
<div id="copy-messages" class="section level3">
<h3 class="hasAnchor">
<a href="#copy-messages" class="anchor"></a>8.1) Copy message(s)</h3>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb39"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">results</span> <span class="op"><-</span> <span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">select_mailbox</span><span class="op">(</span>mbox <span class="op">=</span> <span class="st">"CRAN messages2"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">search_since</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"10-May-2019"</span><span class="op">)</span> <span class="op">%$%</span> <span class="co">#exposition pipe operator</span></span>
<span> <span class="fu">copy_msg</span><span class="op">(</span>imapconf <span class="op">=</span> <span class="va">imapconf</span>, msg_id <span class="op">=</span> <span class="va">msg_id</span>, to_mbox <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span></span></code></pre></div>
<p>New format:</p>
<div class="sourceCode" id="cb40"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">select_folder</span><span class="op">(</span>name <span class="op">=</span> <span class="st">"CRAN messages2"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">results</span> <span class="op"><-</span> <span class="va">con</span><span class="op">$</span><span class="fu">search_since</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"10-May-2019"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="va">con</span><span class="op">$</span><span class="fu">copy_msg</span><span class="op">(</span>to_folder <span class="op">=</span> <span class="st">"INBOX"</span>, reselect <span class="op">=</span> <span class="cn">FALSE</span><span class="op">)</span></span></code></pre></div>
</div>
</div>
<div id="move-messages-depends-on-move-capability" class="section level3">
<h3 class="hasAnchor">
<a href="#move-messages-depends-on-move-capability" class="anchor"></a>8.2) Move message(s) (depends on MOVE capability)</h3>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb41"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">results</span> <span class="op"><-</span> <span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">select_mailbox</span><span class="op">(</span>mbox <span class="op">=</span> <span class="st">"[Gmail]/Sent"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">search_before</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"10-may-2012"</span><span class="op">)</span> <span class="op">%$%</span> <span class="co">#exposition pipe operator</span></span>
<span> <span class="fu">move_msg</span><span class="op">(</span>imapconf <span class="op">=</span> <span class="va">imapconf</span>, msg_id <span class="op">=</span> <span class="va">msg_id</span>, to_mbox <span class="op">=</span> <span class="st">"CRAN messages2"</span><span class="op">)</span></span></code></pre></div>
<p>New format:</p>
<div class="sourceCode" id="cb42"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">select_folder</span><span class="op">(</span>name <span class="op">=</span> <span class="st">"[Gmail]/Sent"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">con</span><span class="op">$</span><span class="fu">search_before</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"10-May-2012"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="va">con</span><span class="op">$</span><span class="fu">move_msg</span><span class="op">(</span>to_folder <span class="op">=</span> <span class="st">"CRAN messages2"</span>, reselect <span class="op">=</span> <span class="cn">FALSE</span><span class="op">)</span></span></code></pre></div>
</div>
</div>
<div id="search-the-minimum-message-id-with-specific-flags-depends-on-esearch-capability" class="section level3">
<h3 class="hasAnchor">
<a href="#search-the-minimum-message-id-with-specific-flags-depends-on-esearch-capability" class="anchor"></a>8.3) Search the minimum message ID with specific flag(s) (depends on
ESEARCH capability)</h3>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb43"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">results</span> <span class="op"><-</span> <span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">select_mailbox</span><span class="op">(</span>mbox <span class="op">=</span> <span class="st">"[GMail]/Trash"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">get_min_id</span><span class="op">(</span>flag <span class="op">=</span> <span class="st">"UNSEEN"</span><span class="op">)</span></span></code></pre></div>
<p>New format:</p>
<div class="sourceCode" id="cb44"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">select_folder</span><span class="op">(</span>name <span class="op">=</span> <span class="st">"[GMail]/Trash"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">con</span><span class="op">$</span><span class="fu">esearch_min_id</span><span class="op">(</span>flag <span class="op">=</span> <span class="st">"UNSEEN"</span><span class="op">)</span></span></code></pre></div>
</div>
</div>
<div id="search-the-maximum-message-id-with-specific-flags-depends-on-esearch-capability" class="section level3">
<h3 class="hasAnchor">
<a href="#search-the-maximum-message-id-with-specific-flags-depends-on-esearch-capability" class="anchor"></a>8.4) Search the maximum message ID with specific flag(s) (depends on
ESEARCH capability)</h3>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb45"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">results</span> <span class="op"><-</span> <span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">select_mailbox</span><span class="op">(</span>mbox <span class="op">=</span> <span class="st">"[Gmail]/Trash"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">get_max_id</span><span class="op">(</span>flag <span class="op">=</span> <span class="st">"UNSEEN"</span><span class="op">)</span></span></code></pre></div>
<p>New format:</p>
<div class="sourceCode" id="cb46"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">select_folder</span><span class="op">(</span>name <span class="op">=</span> <span class="st">"[GMail]/Trash"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">con</span><span class="op">$</span><span class="fu">esearch_max_id</span><span class="op">(</span>flag <span class="op">=</span> <span class="st">"UNSEEN"</span><span class="op">)</span></span></code></pre></div>
</div>
</div>
<div id="delete-messages" class="section level3">
<h3 class="hasAnchor">
<a href="#delete-messages" class="anchor"></a>8.5) Delete message(s)</h3>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb47"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">results</span> <span class="op"><-</span> <span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">select_mailbox</span><span class="op">(</span>mbox <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">delete_msg</span><span class="op">(</span>msg_id <span class="op">=</span> <span class="fl">66128</span><span class="op">)</span></span></code></pre></div>
<p>New format:</p>
<div class="sourceCode" id="cb48"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">select_folder</span><span class="op">(</span>name <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">con</span><span class="op">$</span><span class="fu">delete_msg</span><span class="op">(</span>msg_id <span class="op">=</span> <span class="fl">66128</span><span class="op">)</span></span></code></pre></div>
</div>
</div>
<div id="expunge" class="section level3">
<h3 class="hasAnchor">
<a href="#expunge" class="anchor"></a>8.6) Expunge</h3>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb49"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">results</span> <span class="op"><-</span> <span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">select_mailbox</span><span class="op">(</span>mbox <span class="op">=</span> <span class="st">"[Gmail]/Trash"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">delete_msg</span><span class="op">(</span>msg_id <span class="op">=</span> <span class="fl">71772</span>, by <span class="op">=</span> <span class="st">"UID"</span><span class="op">)</span> <span class="op">%$%</span></span>
<span> <span class="fu">expunge</span><span class="op">(</span>imapconf <span class="op">=</span> <span class="va">imapconf</span>, specific_UID <span class="op">=</span> <span class="va">msg_id</span><span class="op">)</span></span></code></pre></div>
<p><br><br><br></p>
<p>New format:</p>
<div class="sourceCode" id="cb50"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">select_folder</span><span class="op">(</span>name <span class="op">=</span> <span class="st">"[GMail]/Trash"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">con</span><span class="op">$</span><span class="fu">delete_msg</span><span class="op">(</span>msg_id <span class="op">=</span> <span class="fl">71772</span>, use_uid <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="va">con</span><span class="op">$</span><span class="fu">expunge</span><span class="op">(</span><span class="op">)</span> <span class="co"># expunge the specific UID</span></span>
<span></span>
<span><span class="co"># or, if the user wants to expunge the entire mail folder:</span></span>
<span><span class="va">con</span><span class="op">$</span><span class="fu">expunge</span><span class="op">(</span><span class="op">)</span></span></code></pre></div>
</div>
</div>
<div id="addremovereplace-flags" class="section level3">
<h3 class="hasAnchor">
<a href="#addremovereplace-flags" class="anchor"></a>8.7) Add/Remove/Replace flags</h3>
<div id="add-flags" class="section level4">
<h4 class="hasAnchor">
<a href="#add-flags" class="anchor"></a>8.7.1) Add flags</h4>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb51"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">results</span> <span class="op"><-</span> <span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">select_mailbox</span><span class="op">(</span>mbox <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">search_since</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"18-Aug-2020"</span>, by <span class="op">=</span> <span class="st">"UID"</span><span class="op">)</span> <span class="op">%$%</span> <span class="co">#exposition pipe operator</span></span>
<span> <span class="fu">add_flags</span><span class="op">(</span>imapconf <span class="op">=</span> <span class="va">imapconf</span>, msg_id <span class="op">=</span> <span class="va">msg_id</span>, flags_to_set <span class="op">=</span> <span class="st">"\\Seen"</span><span class="op">)</span></span></code></pre></div>
<p>New format:</p>
<div class="sourceCode" id="cb52"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">select_folder</span><span class="op">(</span>name <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">con</span><span class="op">$</span><span class="fu">search_since</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"18-Aug-2020"</span>, use_uid <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="va">con</span><span class="op">$</span><span class="fu">add_flags</span><span class="op">(</span>use_uid <span class="op">=</span> <span class="cn">TRUE</span>, flags_to_set <span class="op">=</span> <span class="st">"\\Seen"</span><span class="op">)</span> <span class="co"># system flags need the "\\" prefix</span></span></code></pre></div>
</div>
</div>
<div id="remove-flags" class="section level4">
<h4 class="hasAnchor">
<a href="#remove-flags" class="anchor"></a>8.7.2) Remove flags</h4>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb53"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">results</span> <span class="op"><-</span> <span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">select_mailbox</span><span class="op">(</span>mbox <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">search_since</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"18-Aug-2020"</span>, by <span class="op">=</span> <span class="st">"UID"</span><span class="op">)</span> <span class="op">%$%</span> <span class="co">#exposition pipe operator</span></span>
<span> <span class="fu">remove_flags</span><span class="op">(</span>imapconf <span class="op">=</span> <span class="va">imapconf</span>, msg_id <span class="op">=</span> <span class="va">msg_id</span>, flags_to_unset <span class="op">=</span> <span class="st">"\\Seen"</span><span class="op">)</span></span></code></pre></div>
<p>New format:</p>
<div class="sourceCode" id="cb54"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">select_folder</span><span class="op">(</span>name <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">con</span><span class="op">$</span><span class="fu">search_since</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"18-Aug-2020"</span>, use_uid <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="va">con</span><span class="op">$</span><span class="fu">remove_flags</span><span class="op">(</span>use_uid <span class="op">=</span> <span class="cn">TRUE</span>, flags_to_unset <span class="op">=</span> <span class="st">"\\Seen"</span><span class="op">)</span> <span class="co"># system flags need the "\\" prefix</span></span></code></pre></div>
</div>
</div>
<div id="replace-flags" class="section level4">
<h4 class="hasAnchor">
<a href="#replace-flags" class="anchor"></a>8.7.3) Replace flags</h4>
<div class="col2">
<p>Previous code:</p>
<div class="sourceCode" id="cb55"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">results</span> <span class="op"><-</span> <span class="va">imapconf</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">select_mailbox</span><span class="op">(</span>mbox <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="fu">search_since</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"18-Aug-2020"</span>, by <span class="op">=</span> <span class="st">"UID"</span><span class="op">)</span> <span class="op">%$%</span> <span class="co">#exposition pipe operator</span></span>
<span> <span class="fu">replace_flags</span><span class="op">(</span>imapconf <span class="op">=</span> <span class="va">imapconf</span>, msg_id <span class="op">=</span> <span class="va">msg_id</span>, flags_to_set <span class="op">=</span> <span class="st">"\\Seen"</span><span class="op">)</span></span></code></pre></div>
<p>New format:</p>
<div class="sourceCode" id="cb56"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">con</span><span class="op">$</span><span class="fu">select_folder</span><span class="op">(</span>name <span class="op">=</span> <span class="st">"INBOX"</span><span class="op">)</span></span>
<span></span>
<span><span class="va">con</span><span class="op">$</span><span class="fu">search_since</span><span class="op">(</span>date_char <span class="op">=</span> <span class="st">"18-Aug-2020"</span>, use_uid <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span> <span class="op"><a href="../reference/%>%.html">%>%</a></span></span>
<span> <span class="va">con</span><span class="op">$</span><span class="fu">replace_flags</span><span class="op">(</span>use_uid <span class="op">=</span> <span class="cn">TRUE</span>, flags_to_set <span class="op">=</span> <span class="st">"\\Seen"</span><span class="op">)</span> <span class="co"># system flags need the "\\" prefix</span></span></code></pre></div>
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