libs/web: add template parser reimplemented in C

1 files changed, 81 insertions, 0 deletions

diff --git a/libs/web/src/template_parser.h b/libs/web/src/template_parser.h
new file mode 100644
index 0000000000..42ebdff69d
--- /dev/null
+++ b/libs/web/src/template_parser.h
@@ -0,0 +1,81 @@
+/*
+ * LuCI Template - Parser header
+ *
+ *   Copyright (C) 2009 Jo-Philipp Wich <xm@subsignal.org>
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#ifndef _TEMPLATE_PARSER_H_
+#define _TEMPLATE_PARSER_H_
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <ctype.h>
+
+#include <lua.h>
+#include <lualib.h>
+#include <lauxlib.h>
+
+
+#define T_READBUFSZ			1024
+#define T_OUTBUFSZ			T_READBUFSZ * 3
+
+/* parser states */
+#define T_STATE_TEXT_INIT	0
+#define T_STATE_TEXT_NEXT	1
+#define T_STATE_CODE_INIT	2
+#define T_STATE_CODE_NEXT	3
+#define T_STATE_SKIP 		4
+
+/* parser flags */
+#define T_FLAG_EOF			0x01
+#define T_FLAG_SKIPWS		0x02
+
+/* tokens used in matching and expression generation */
+#define T_TOK_START			"<%"
+#define T_TOK_END			"%>"
+#define T_TOK_SKIPWS		"-"
+#define T_TOK_I18NSEP		"\", \""
+
+/* generator flags */
+#define T_GEN_START			0x01
+#define T_GEN_END			0x02
+
+/* code types */
+#define T_TYPE_TEXT			0
+#define T_TYPE_COMMENT		1
+#define T_TYPE_EXPR			2
+#define T_TYPE_INCLUDE 		3
+#define T_TYPE_I18N			4
+#define T_TYPE_CODE			5
+
+/* parser state */
+struct template_parser {
+	int fd;
+	int bufsize;
+	int outsize;
+	int state;
+	int flags;
+	int type;
+	char buf[T_READBUFSZ];
+	char out[T_OUTBUFSZ];
+};
+
+
+const char *template_reader(lua_State *L, void *ud, size_t *sz);
+
+#endif