1 files changed, 58 insertions, 0 deletions
diff --git a/jsdoc/c-transpiler.js b/jsdoc/c-transpiler.js
new file mode 100644
index 0000000..55bc617
--- /dev/null
+++ b/jsdoc/c-transpiler.js
@@ -0,0 +1,58 @@
+/*
+ * c-transpiler.js - transpile C to JS while retaining line numbers.
+ *
+ * Copyright (C) 2023 Jo-Philipp Wich <jo@mein.io>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+'use strict';
+
+exports.handlers = {
+  beforeParse: function(e) {
+	if (!e.filename.match(/\.(c|h)$/))
+		return;
+
+	let chunks = [ { start: 0, end: -1, comment: false } ];
+	let chunk = chunks[0];
+	let i = 0;
+
+	for (i = 0; i < e.source.length; i++) {
+		if (!chunk.comment && e.source[i] == '\n' && e.source[i+1] == '/' && e.source[i+2] == '*' && e.source[i+3] == '*') {
+			chunk.end = i;
+			chunk = { start: i, end: -1, comment: true };
+			chunks.push(chunk);
+			i += 3;
+		}
+		else if (chunk.comment && e.source[i] == '*' && e.source[i+1] == '/') {
+			chunk.end = i + 1;
+			chunk = { start: i + 1, end: -1, comment: false };
+			chunks.push(chunk);
+			i += 1;
+		}
+	}
+
+	chunk.end = i;
+
+	let source = '';
+
+	for (chunk of chunks) {
+		if (chunk.comment)
+			source += e.source.substring(chunk.start, chunk.end);
+		else
+			source += e.source.substring(chunk.start, chunk.end).replace(/(^|\n)/g, '$1//');
+	}
+
+	e.source = source;
+  }
+};