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| author | Marshall Lochbaum <mwlochbaum@gmail.com> | 2020-07-18 23:35:02 -0400 |
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| committer | Marshall Lochbaum <mwlochbaum@gmail.com> | 2020-07-18 23:35:02 -0400 |
| commit | 4b9b761cc990f9247083ea28a32d9123bb752818 (patch) | |
| tree | 9e491c67662f8378ba39c8da90b6ae6a6783d596 /docs/spec/grammar.html | |
| parent | c63290ae05990f54619207ac6ee0b3fbf6f9c145 (diff) | |
Add a main repository link to html files and titles to spec files
Diffstat (limited to 'docs/spec/grammar.html')
| -rw-r--r-- | docs/spec/grammar.html | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/docs/spec/grammar.html b/docs/spec/grammar.html index 09d0bafa..8a3ead18 100644 --- a/docs/spec/grammar.html +++ b/docs/spec/grammar.html @@ -1,4 +1,6 @@ <head><link href="../style.css" rel="stylesheet"/></head> +<div class="nav"><a href="https://github.com/mlochbaum/BQN">BQN</a></div> +<h1 id="specification--bqn-grammar">Specification: BQN grammar</h1> <p>BQN's grammar is given below. Terms are defined in a <a href="https://en.wikipedia.org/wiki/Backus%E2%80%93Naur_form">BNF</a> variant. However, handling special names properly is possible but difficult in BNF, so they are explained in text along with the braced block grammar.</p> <p>The symbols <code><span class='Value'>s</span></code>, <code><span class='Function'>F</span></code>, <code><span class='Modifier'>_m</span></code>, and <code><span class='Modifier2'>_c_</span></code> are identifier tokens with subject, function, 1-modifier, and 2-modifier classes respectively. Similarly, <code><span class='Value'>sl</span></code>, <code><span class='Function'>Fl</span></code>, <code><span class='Modifier'>_ml</span></code>, and <code><span class='Modifier2'>_cl_</span></code> refer to literals and primitives of those classes. While names in the BNF here follow the identifier naming scheme, this is informative only: syntactic classes are no longer used after parsing and cannot be inspected in a running program.</p> <p>A program is a list of statements. Almost all statements are expressions. However, explicit definitions and valueless results stemming from <code><span class='Nothing'>·</span></code>, or <code><span class='Value'>𝕨</span></code> in a monadic brace function, can be used as statements but not expressions.</p> |