json-lexer.h

   1 /*
   2  * JSON lexer
   3  *
   4  * Copyright IBM, Corp. 2009
   5  *
   6  * Authors:
   7  *  Anthony Liguori   <aliguori@us.ibm.com>
   8  *
   9  * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
  10  * See the COPYING.LIB file in the top-level directory.
  11  *
  12  */
  13
  14 #ifndef QEMU_JSON_LEXER_H
  15 #define QEMU_JSON_LEXER_H
  16
  17 #include "qstring.h"
  18 #include "qlist.h"
  19
  20 typedef enum json_token_type {
  21     JSON_OPERATOR = 100,
  22     JSON_INTEGER,
  23     JSON_FLOAT,
  24     JSON_KEYWORD,
  25     JSON_STRING,
  26     JSON_ESCAPE,
  27     JSON_SKIP,
  28 } JSONTokenType;
  29
  30 typedef struct JSONLexer JSONLexer;
  31
  32 typedef void (JSONLexerEmitter)(JSONLexer *, QString *, JSONTokenType, int x, int y);
  33
  34 struct JSONLexer
  35 {
  36     JSONLexerEmitter *emit;
  37     int state;
  38     QString *token;
  39     int x, y;
  40 };
  41
  42 void json_lexer_init(JSONLexer *lexer, JSONLexerEmitter func);
  43
  44 int json_lexer_feed(JSONLexer *lexer, const char *buffer, size_t size);
  45
  46 int json_lexer_flush(JSONLexer *lexer);
  47
  48 void json_lexer_destroy(JSONLexer *lexer);
  49
  50 #endif