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     JSON_ERROR,
  29 } JSONTokenType;
  30
  31 typedef struct JSONLexer JSONLexer;
  32
  33 typedef void (JSONLexerEmitter)(JSONLexer *, QString *, JSONTokenType, int x, int y);
  34
  35 struct JSONLexer
  36 {
  37     JSONLexerEmitter *emit;
  38     int state;
  39     QString *token;
  40     int x, y;
  41 };
  42
  43 void json_lexer_init(JSONLexer *lexer, JSONLexerEmitter func);
  44
  45 int json_lexer_feed(JSONLexer *lexer, const char *buffer, size_t size);
  46
  47 int json_lexer_flush(JSONLexer *lexer);
  48
  49 void json_lexer_destroy(JSONLexer *lexer);
  50
  51 #endif