modules/base/src/template_parser.h

   1 /*
   2  * LuCI Template - Parser header
   3  *
   4  *   Copyright (C) 2009 Jo-Philipp Wich <xm@subsignal.org>
   5  *
   6  *  Licensed under the Apache License, Version 2.0 (the "License");
   7  *  you may not use this file except in compliance with the License.
   8  *  You may obtain a copy of the License at
   9  *
  10  *      http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  *  Unless required by applicable law or agreed to in writing, software
  13  *  distributed under the License is distributed on an "AS IS" BASIS,
  14  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  *  See the License for the specific language governing permissions and
  16  *  limitations under the License.
  17  */
  18
  19 #ifndef _TEMPLATE_PARSER_H_
  20 #define _TEMPLATE_PARSER_H_
  21
  22 #include <stdlib.h>
  23 #include <stdio.h>
  24 #include <stdint.h>
  25 #include <unistd.h>
  26 #include <fcntl.h>
  27 #include <sys/stat.h>
  28 #include <sys/mman.h>
  29 #include <string.h>
  30 #include <ctype.h>
  31 #include <errno.h>
  32
  33 #include <lua.h>
  34 #include <lualib.h>
  35 #include <lauxlib.h>
  36
  37
  38 /* code types */
  39 #define T_TYPE_INIT                     0
  40 #define T_TYPE_TEXT                     1
  41 #define T_TYPE_COMMENT          2
  42 #define T_TYPE_EXPR                     3
  43 #define T_TYPE_INCLUDE          4
  44 #define T_TYPE_I18N                     5
  45 #define T_TYPE_I18N_RAW         6
  46 #define T_TYPE_CODE                     7
  47 #define T_TYPE_EOF                      8
  48
  49
  50 struct template_chunk {
  51         const char *s;
  52         const char *e;
  53         int type;
  54         int line;
  55 };
  56
  57 /* parser state */
  58 struct template_parser {
  59         int fd;
  60         uint32_t size;
  61         char *data;
  62         char *off;
  63         char *gc;
  64         int line;
  65         int in_expr;
  66         int strip_before;
  67         int strip_after;
  68         struct template_chunk prv_chunk;
  69         struct template_chunk cur_chunk;
  70         const char *file;
  71 };
  72
  73 struct template_parser * template_open(const char *file);
  74 struct template_parser * template_string(const char *str, uint32_t len);
  75 void template_close(struct template_parser *parser);
  76
  77 const char *template_reader(lua_State *L, void *ud, size_t *sz);
  78 int template_error(lua_State *L, struct template_parser *parser);
  79
  80 #endif