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      1 /*
      2  * JSON lexer
      3  *
      4  * Copyright IBM, Corp. 2009
      5  *
      6  * Authors:
      7  *  Anthony Liguori   <aliguori (at) 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 "qapi/qmp/qstring.h"
     18 #include "qapi/qmp/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
     52