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Overview
| Comment: | Add the json_check() function, which returns its argument if the argument is well-formed JSON or which throws an error otherwise. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
64abb65d4df11e5b3bcc4afc8e7c18e9 |
| User & Date: | drh 2015-08-28 03:48:04 |
Context
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2015-08-28
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| 16:18 | When searching the wal file for a frame, do not search that part that was already checkpointed when the transaction was opened. (check-in: a84cf4f5 user: dan tags: trunk) | |
| 15:50 | Merge latest trunk into this branch. (Closed-Leaf check-in: ab93024d user: dan tags: wal-read-change) | |
| 09:27 | Merge latest trunk changes with this branch. (check-in: 57bc0194 user: dan tags: begin-concurrent) | |
| 03:48 | Add the json_check() function, which returns its argument if the argument is well-formed JSON or which throws an error otherwise. (check-in: 64abb65d user: drh tags: trunk) | |
| 03:33 | Enhance the json_insert(), json_replace(), and json_set() functions with the ability to add JSON instead of text if the argument is text and if the PATH begins with '$$' instead of just '$'. (check-in: 44f103d8 user: drh tags: trunk) | |
Changes
Changes to ext/misc/json1.c.
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}
}
}
jsonParseReset(&x);
}
if( !x.oom ) sqlite3_result_int64(ctx, n);
}
/*
** json_extract(JSON, PATH)
**
** Return the element described by PATH. Return NULL if JSON is not
** valid JSON or if there is no PATH element or if PATH is malformed.
*/
................................................................................
int nArg;
int flag;
void (*xFunc)(sqlite3_context*,int,sqlite3_value**);
} aFunc[] = {
{ "json_array", -1, 0, jsonArrayFunc },
{ "json_array_length", 1, 0, jsonArrayLengthFunc },
{ "json_array_length", 2, 0, jsonArrayLengthFunc },
{ "json_extract", 2, 0, jsonExtractFunc },
{ "json_insert", -1, 0, jsonSetFunc },
{ "json_object", -1, 0, jsonObjectFunc },
{ "json_remove", -1, 0, jsonRemoveFunc },
{ "json_replace", -1, 0, jsonReplaceFunc },
{ "json_set", -1, 1, jsonSetFunc },
{ "json_type", 1, 0, jsonTypeFunc },
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}
}
}
jsonParseReset(&x);
}
if( !x.oom ) sqlite3_result_int64(ctx, n);
}
/*
** json_check(JSON)
**
** Check the JSON argument to verify that it is well-formed. Return a
** compacted version of the argument (with white-space removed) if the
** argument is well-formed. Through an error if the argument is not
** correctly formatted JSON.
*/
static void jsonCheckFunc(
sqlite3_context *ctx,
int argc,
sqlite3_value **argv
){
JsonParse x; /* The parse */
if( jsonParse(&x, ctx, (const char*)sqlite3_value_text(argv[0])) ){
sqlite3_result_error(ctx, "malformed JSON", -1);
return;
}
jsonReturn(x.aNode, ctx, argv);
jsonParseReset(&x);
}
/*
** json_extract(JSON, PATH)
**
** Return the element described by PATH. Return NULL if JSON is not
** valid JSON or if there is no PATH element or if PATH is malformed.
*/
................................................................................
int nArg;
int flag;
void (*xFunc)(sqlite3_context*,int,sqlite3_value**);
} aFunc[] = {
{ "json_array", -1, 0, jsonArrayFunc },
{ "json_array_length", 1, 0, jsonArrayLengthFunc },
{ "json_array_length", 2, 0, jsonArrayLengthFunc },
{ "json_check", 1, 0, jsonCheckFunc },
{ "json_extract", 2, 0, jsonExtractFunc },
{ "json_insert", -1, 0, jsonSetFunc },
{ "json_object", -1, 0, jsonObjectFunc },
{ "json_remove", -1, 0, jsonRemoveFunc },
{ "json_replace", -1, 0, jsonReplaceFunc },
{ "json_set", -1, 1, jsonSetFunc },
{ "json_type", 1, 0, jsonTypeFunc },
|
Changes to test/json101.test.
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} {{{"a":[3,4,5],"b":2}}}
do_execsql_test json1-3.3 {
SELECT json_type(json_set('{"a":1,"b":2}','$.b','{"x":3,"y":4}'),'$.b');
} {text}
do_execsql_test json1-3.4 {
SELECT json_type(json_set('{"a":1,"b":2}','$$.b','{"x":3,"y":4}'),'$.b');
} {object}
finish_test
|
> > > > > > > |
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} {{{"a":[3,4,5],"b":2}}}
do_execsql_test json1-3.3 {
SELECT json_type(json_set('{"a":1,"b":2}','$.b','{"x":3,"y":4}'),'$.b');
} {text}
do_execsql_test json1-3.4 {
SELECT json_type(json_set('{"a":1,"b":2}','$$.b','{"x":3,"y":4}'),'$.b');
} {object}
do_execsql_test json1-4.1 {
SELECT json_check(' [ 1, 2] ');
} {[1,2]}
do_catchsql_test json1-4.2 {
SELECT json_check(' [ 1, 2 ');
} {1 {malformed JSON}}
finish_test
|