diff options
Diffstat (limited to 'docs/doc/expression.html')
| -rw-r--r-- | docs/doc/expression.html | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/docs/doc/expression.html b/docs/doc/expression.html index 8676b3d9..6b7f588c 100644 --- a/docs/doc/expression.html +++ b/docs/doc/expression.html @@ -22,7 +22,7 @@ </thead> <tbody> <tr> -<td><code><span class='Value'>w?</span></code></td> +<td><code><span class='Value'>w</span><span class='Head'>?</span></code></td> <td><code><span class='Function'>F</span></code></td> <td><code><span class='Value'>x</span></code></td> <td>Subject</td> @@ -30,7 +30,7 @@ <td>RtL, looser</td> </tr> <tr> -<td><code><span class='Function'>F</span><span class='Value'>?</span></code></td> +<td><code><span class='Function'>F</span><span class='Head'>?</span></code></td> <td><code><span class='Function'>G</span></code></td> <td><code><span class='Function'>H</span></code></td> <td>Function</td> @@ -56,7 +56,7 @@ </tbody> </table> <p>The four roles (subject, function, two kinds of modifier) describe expressions, not values. When an expression is evaluated, the value's <a href="types.html">type</a> doesn't have to correspond to its role, and can even change from one evaluation to another. An expression's role is determined entirely by its source code, so it's fixed.</p> -<p>In the table, <code><span class='Value'>?</span></code> marks an optional left argument. If there isn't a value in that position, or it's <a href="#nothing">Nothing</a> (<code><span class='Nothing'>·</span></code>), the middle function will be called with only one argument.</p> +<p>In the table, <code><span class='Head'>?</span></code> marks an optional left argument. If there isn't a value in that position, or it's <a href="#nothing">Nothing</a> (<code><span class='Nothing'>·</span></code>), the middle function will be called with only one argument.</p> <p>If you're comfortable reading <a href="https://en.wikipedia.org/wiki/Backus%E2%80%93Naur_form">BNF</a> and want to understand things in more detail than described below, you might check the <a href="../spec/grammar.html">grammar specification</a> as well.</p> <h2 id="syntactic-role"><a class="header" href="#syntactic-role">Syntactic role</a></h2> <p><em>This issue is approached from a different angle in <a href="context.html">Context free grammar</a>.</em></p> |