Add initial version of hilex

hilex is meant to replace hi, based on lex rather than a mess of
overlapping regexps. I want to preserve hi's tagging abilities, but that
will require some amount of parsing/post-processing, which I'm not sure
how to approach yet.

Macro lexing for C still needs work, as I want to match strings and
comments inside macros.

1 files changed, 35 insertions, 0 deletions

diff --git a/bin/hilex/text.l b/bin/hilex/text.l
new file mode 100644
index 00000000..78ebb7a2
--- /dev/null
+++ b/bin/hilex/text.l
@@ -0,0 +1,35 @@
+/* Copyright (C) 2020  June 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="text"
+%option noyywrap
+
+%{
+#include "hilex.h"
+%}
+
+%%
+
+.*"\n"? { return Normal; }
+
+%{
+	(void)yyunput;
+	(void)input;
+%}
+
+%%
+
+const struct Lexer LexText = { yylex, &yyin, &yytext };