From 8cb2140bbeb2baa4db3de40e2b9b3c34914e4bcf Mon Sep 17 00:00:00 2001
From: "C. McEnroe" <june@causal.agency>
Date: Mon, 28 Dec 2020 22:44:25 -0500
Subject: Add mdoc lexer

---
 bin/hilex/mdoc.l | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 bin/hilex/mdoc.l

(limited to 'bin/hilex/mdoc.l')

diff --git a/bin/hilex/mdoc.l b/bin/hilex/mdoc.l
new file mode 100644
index 00000000..50e2f94f
--- /dev/null
+++ b/bin/hilex/mdoc.l
@@ -0,0 +1,61 @@
+/* Copyright (C) 2020  C. McEnroe <june@causal.agency>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+%option prefix="mdoc"
+%option noyywrap
+
+%{
+#include "hilex.h"
+%}
+
+%s MacroLine
+
+%%
+
+^"." {
+	BEGIN(MacroLine);
+	return Keyword;
+}
+
+^".\\\"".* { return Comment; }
+
+<MacroLine>{
+	"\n" {
+		BEGIN(0);
+		return Normal;
+	}
+
+	%[ABCDIJNOPQRTUV]|A[cdnopqrt]|B[cdfkloqtx]|Br[coq]|Bsx|C[dm]|D[1bcdloqtvx] |
+	E[cdfklmnorsvx]|F[acdlnortx]|Hf|I[cnt]|L[bikp]|M[st]|N[dmosx]|O[copstx] |
+	P[acfopq]|Q[cloq]|R[esv]|S[chmoqstxy]|T[an]|U[dx]|V[at]|X[cor] {
+		return Keyword;
+	}
+
+	"\""([^""]|"\\\"")*"\"" { return String; }
+}
+
+"\\"(.|"("..|"["[^]]*"]") { return String; }
+
+[[:blank:]]+|[^.\n""\\[:space:]]+|.|\n { return Normal; }
+
+%{
+	(void)yyunput;
+	(void)input;
+%}
+
+%%
+
+const struct Lexer LexMdoc = { yylex, &yyin, &yytext };
-- 
cgit 1.4.1