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<h1>Format Strings</h1>
<p>repartee implements a full irssi-compatible format string engine with extensions for 24-bit color.</p>
<h2>Color codes</h2>
<h3>24-bit foreground: <code>%Z</code> + RRGGBB</h3>
<pre><code>%Z7aa2f7Hello → "Hello" in blue (#7aa2f7)
</code></pre>
<h3>24-bit background: <code>%z</code> + RRGGBB</h3>
<pre><code>%z1a1b26%Za9b1d6Text → Light text on dark background
</code></pre>
<h3>irssi single-letter codes: <code>%X</code></h3>
<table>
<thead>
<tr>
<th>Code</th>
<th>Color</th>
</tr>
</thead>
<tbody><tr>
<td><code>%k</code> / <code>%K</code></td>
<td>Black / Dark gray</td>
</tr>
<tr>
<td><code>%r</code> / <code>%R</code></td>
<td>Red / Light red</td>
</tr>
<tr>
<td><code>%g</code> / <code>%G</code></td>
<td>Green / Light green</td>
</tr>
<tr>
<td><code>%y</code> / <code>%Y</code></td>
<td>Yellow / Light yellow</td>
</tr>
<tr>
<td><code>%b</code> / <code>%B</code></td>
<td>Blue / Light blue</td>
</tr>
<tr>
<td><code>%m</code> / <code>%M</code></td>
<td>Magenta / Light magenta</td>
</tr>
<tr>
<td><code>%c</code> / <code>%C</code></td>
<td>Cyan / Light cyan</td>
</tr>
<tr>
<td><code>%w</code> / <code>%W</code></td>
<td>White / Bright white</td>
</tr>
</tbody></table>
<h3>Style codes</h3>
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<thead>
<tr>
<th>Code</th>
<th>Effect</th>
</tr>
</thead>
<tbody><tr>
<td><code>%_</code></td>
<td>Bold</td>
</tr>
<tr>
<td><code>%/</code></td>
<td>Italic</td>
</tr>
<tr>
<td><code>%-</code></td>
<td>Strikethrough</td>
</tr>
<tr>
<td><code>%U</code></td>
<td>Underline</td>
</tr>
<tr>
<td><code>%n</code> / <code>%N</code></td>
<td>Reset all formatting</td>
</tr>
</tbody></table>
<h2>Abstracts: <code>{name args}</code></h2>
<p>Abstracts are named templates that expand recursively:</p>
<pre><code class="language-toml">[abstracts]
sb_background = "%z24283b"
timestamp = "%Z565f89$*"
line_start = "{timestamp $Z}{sb_background}"
</code></pre>
<p>Usage in another abstract: <code>{timestamp 12:34}</code> expands <code>$*</code> to <code>12:34</code>.</p>
<h2>Variable substitution</h2>
<table>
<thead>
<tr>
<th>Syntax</th>
<th>Meaning</th>
</tr>
</thead>
<tbody><tr>
<td><code>$0</code> – <code>$9</code></td>
<td>Positional argument</td>
</tr>
<tr>
<td><code>$*</code></td>
<td>All arguments joined</td>
</tr>
<tr>
<td><code>$[N]0</code></td>
<td>Argument padded/truncated to N characters</td>
</tr>
</tbody></table>
<p>Example: <code>$[8]0</code> pads argument 0 to 8 characters (right-aligned by default).</p>
<h2>mIRC control characters</h2>
<p>repartee also parses mIRC-style control characters in incoming messages:</p>
<table>
<thead>
<tr>
<th>Char</th>
<th>Hex</th>
<th>Effect</th>
</tr>
</thead>
<tbody><tr>
<td>Bold</td>
<td><code>\x02</code></td>
<td>Toggle bold</td>
</tr>
<tr>
<td>Color</td>
<td><code>\x03</code></td>
<td>mIRC color code (fg,bg)</td>
</tr>
<tr>
<td>Hex color</td>
<td><code>\x04</code></td>
<td>Hex color code</td>
</tr>
<tr>
<td>Reset</td>
<td><code>\x0F</code></td>
<td>Reset all formatting</td>
</tr>
<tr>
<td>Reverse</td>
<td><code>\x16</code></td>
<td>Swap fg/bg</td>
</tr>
<tr>
<td>Italic</td>
<td><code>\x1D</code></td>
<td>Toggle italic</td>
</tr>
<tr>
<td>Strikethrough</td>
<td><code>\x1E</code></td>
<td>Toggle strikethrough</td>
</tr>
<tr>
<td>Underline</td>
<td><code>\x1F</code></td>
<td>Toggle underline</td>
</tr>
</tbody></table>
<h2>Abstraction depth</h2>
<p>Abstracts can reference other abstracts up to 10 levels deep to prevent infinite recursion.</p>
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