libs/web: add template parser reimplemented in C

[project/luci.git] / libs / web / src / template_parser.h

diff --git a/libs/web/src/template_parser.h b/libs/web/src/template_parser.h
new file mode 100644 (file)
index 0000000..42ebdff
--- /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