include/qapi/qmp/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
  18 typedef enum json_token_type {
  19     JSON_MIN = 100,
  20     JSON_LCURLY = JSON_MIN,
  21     JSON_RCURLY,
  22     JSON_LSQUARE,
  23     JSON_RSQUARE,
  24     JSON_COLON,
  25     JSON_COMMA,
  26     JSON_INTEGER,
  27     JSON_FLOAT,
  28     JSON_KEYWORD,
  29     JSON_STRING,
  30     JSON_ESCAPE,
  31     JSON_SKIP,
  32     JSON_ERROR,
  33 } JSONTokenType;
  34
  35 typedef struct JSONLexer JSONLexer;
  36
  37 typedef void (JSONLexerEmitter)(JSONLexer *, GString *,
  38                                 JSONTokenType, int x, int y);
  39
  40 struct JSONLexer
  41 {
  42     JSONLexerEmitter *emit;
  43     int state;
  44     GString *token;
  45     int x, y;
  46 };
  47
  48 void json_lexer_init(JSONLexer *lexer, JSONLexerEmitter func);
  49
  50 int json_lexer_feed(JSONLexer *lexer, const char *buffer, size_t size);
  51
  52 int json_lexer_flush(JSONLexer *lexer);
  53
  54 void json_lexer_destroy(JSONLexer *lexer);
  55
  56 #endif