10 #define MAX_VARLEN 256
12 static const char *var_prefix
= "";
13 static int var_prefix_len
= 0;
15 static int add_json_element(const char *key
, json_object
*obj
);
17 static int add_json_object(json_object
*obj
)
21 json_object_object_foreach(obj
, key
, val
) {
22 ret
= add_json_element(key
, val
);
29 static int add_json_array(struct array_list
*a
)
35 for (i
= 0, len
= array_list_length(a
); i
< len
; i
++) {
36 sprintf(seq
, "%d", i
);
37 ret
= add_json_element(seq
, array_list_get_idx(a
, i
));
45 static void add_json_string(const char *str
)
47 char *ptr
= (char *) str
;
51 while ((c
= strchr(ptr
, '\'')) != NULL
) {
54 fwrite(ptr
, len
, 1, stdout
);
57 fwrite(c
, strlen(c
), 1, stdout
);
61 fwrite(ptr
, len
, 1, stdout
);
64 static void write_key_string(const char *key
)
67 putc(isalnum(*key
) ? *key
: '_', stdout
);
72 static int add_json_element(const char *key
, json_object
*obj
)
79 switch (json_object_get_type(obj
)) {
80 case json_type_object
:
86 case json_type_string
:
89 case json_type_boolean
:
99 fprintf(stdout
, "json_add_%s '", type
);
100 write_key_string(key
);
102 switch (json_object_get_type(obj
)) {
103 case json_type_object
:
104 fprintf(stdout
, "';\n");
105 add_json_object(obj
);
106 fprintf(stdout
, "json_close_object;\n");
108 case json_type_array
:
109 fprintf(stdout
, "';\n");
110 add_json_array(json_object_get_array(obj
));
111 fprintf(stdout
, "json_close_array;\n");
113 case json_type_string
:
114 fprintf(stdout
, "' '");
115 add_json_string(json_object_get_string(obj
));
116 fprintf(stdout
, "';\n");
118 case json_type_boolean
:
119 fprintf(stdout
, "' %d;\n", json_object_get_boolean(obj
));
122 fprintf(stdout
, "' %d;\n", json_object_get_int(obj
));
131 static int jshn_parse(const char *str
)
135 obj
= json_tokener_parse(str
);
136 if (is_error(obj
) || json_object_get_type(obj
) != json_type_object
) {
137 fprintf(stderr
, "Failed to parse message data\n");
140 fprintf(stdout
, "json_init;\n");
141 add_json_object(obj
);
147 static char *get_keys(const char *prefix
)
151 keys
= alloca(var_prefix_len
+ strlen(prefix
) + sizeof("KEYS_") + 1);
152 sprintf(keys
, "%sKEYS_%s", var_prefix
, prefix
);
156 static void get_var(const char *prefix
, const char **name
, char **var
, char **type
)
158 char *tmpname
, *varname
;
160 tmpname
= alloca(var_prefix_len
+ strlen(prefix
) + 1 + strlen(*name
) + 1 + sizeof("TYPE_"));
162 sprintf(tmpname
, "%s%s_%s", var_prefix
, prefix
, *name
);
163 *var
= getenv(tmpname
);
165 sprintf(tmpname
, "%sTYPE_%s_%s", var_prefix
, prefix
, *name
);
166 *type
= getenv(tmpname
);
168 sprintf(tmpname
, "%sNAME_%s_%s", var_prefix
, prefix
, *name
);
169 varname
= getenv(tmpname
);
174 static json_object
*jshn_add_objects(json_object
*obj
, const char *prefix
, bool array
);
176 static void jshn_add_object_var(json_object
*obj
, bool array
, const char *prefix
, const char *name
)
181 get_var(prefix
, &name
, &var
, &type
);
185 if (!strcmp(type
, "array")) {
186 new = json_object_new_array();
187 jshn_add_objects(new, var
, true);
188 } else if (!strcmp(type
, "object")) {
189 new = json_object_new_object();
190 jshn_add_objects(new, var
, false);
191 } else if (!strcmp(type
, "string")) {
192 new = json_object_new_string(var
);
193 } else if (!strcmp(type
, "int")) {
194 new = json_object_new_int(atoi(var
));
195 } else if (!strcmp(type
, "boolean")) {
196 new = json_object_new_boolean(!!atoi(var
));
202 json_object_array_add(obj
, new);
204 json_object_object_add(obj
, name
, new);
207 static json_object
*jshn_add_objects(json_object
*obj
, const char *prefix
, bool array
)
209 char *keys
, *key
, *brk
;
211 keys
= get_keys(prefix
);
215 for (key
= strtok_r(keys
, " ", &brk
); key
;
216 key
= strtok_r(NULL
, " ", &brk
)) {
217 jshn_add_object_var(obj
, array
, prefix
, key
);
224 static int jshn_format(bool no_newline
)
228 obj
= json_object_new_object();
229 jshn_add_objects(obj
, "JSON_VAR", false);
230 fprintf(stdout
, "%s%s", json_object_to_json_string(obj
),
231 no_newline
? "" : "\n");
232 json_object_put(obj
);
236 static int usage(const char *progname
)
238 fprintf(stderr
, "Usage: %s [-n] -r <message>|-w\n", progname
);
242 int main(int argc
, char **argv
)
244 bool no_newline
= false;
247 while ((ch
= getopt(argc
, argv
, "p:nr:w")) != -1) {
251 var_prefix_len
= strlen(var_prefix
);
254 return jshn_parse(optarg
);
256 return jshn_format(no_newline
);
261 return usage(argv
[0]);
264 return usage(argv
[0]);