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Merge 'implement json_pretty' from Pedro Muniz

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This PR implements json_pretty. At the moment, support for jsonb is
being added, so this function suffers from the same limitations as in
json(x). Also, I have not found a way to implement the same conversion
of Blob -> String that SQLite does. From my own experimentation, I
believe SQLite converts blobs to a lossy ascii representation, but I
would appreciate some help on this.

Closes #860
This commit is contained in:
Pekka Enberg
2025-02-04 14:51:47 +02:00
parent 0050f4aeea 2e115d948d
commit 2d9a54ccba
7 changed files with 237 additions and 18 deletions
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122
testing/json.test
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@@ -60,6 +60,128 @@ do_execsql_test json5-multi-comment {
123 /* xyz */ , /* 123 */ }')
} {{{"aaa":123}}}
do_execsql_test json5-ecma-script-1-pretty {
select json_pretty('{a:5,b:6}') ;
} {{{
"a": 5,
"b": 6
}}}
do_execsql_test json5-ecma-script-2-pretty {
select json_pretty('{a:5,a:3}') ;
} {{{
"a": 5,
"a": 3
}}}
do_execsql_test json5-ecma-script-3-pretty {
SELECT json_pretty('{ MNO_123$xyz : 789 }');
} {{{
"MNO_123$xyz": 789
}}}
do_execsql_test json5-with-single-trailing-comma-valid-pretty {
select json_pretty('{"a":5, "b":6, }');
} {{{
"a": 5,
"b": 6
}}}
do_execsql_test json5-single-quoted-pretty {
SELECT json_pretty('{"a": ''abcd''}');
} {{{
"a": "abcd"
}}}
do_execsql_test json5-hexadecimal-1-pretty {
SELECT json_pretty('{a: 0x0}');
} {{{
"a": 0
}}}
do_execsql_test json5-hexadecimal-2-pretty {
SELECT json_pretty('{a: 0xabcdef}');
} {{{
"a": 11259375
}}}
do_execsql_test json5-hexadecimal-2-pretty {
SELECT json_pretty('{a: -0xabcdef}');
} {{{
"a": -11259375
}}}
do_execsql_test json5-number-1-pretty {
SELECT json_pretty('{x: 4.}');
} {{{
"x": 4.0
}}}
do_execsql_test json5-number-2-pretty {
SELECT json_pretty('{x: +4.}');
} {{{
"x": 4.0
}}}
do_execsql_test json5-number-3-pretty {
SELECT json_pretty('{x: -4.}');
} {{{
"x": -4.0
}}}
do_execsql_test json5-number-5-pretty {
SELECT json_pretty('{x: Infinity}');
} {{{
"x": 9e999
}}}
do_execsql_test json5-number-6-pretty {
SELECT json_pretty('{x: -Infinity}');
} {{{
"x": -9e999
}}}
do_execsql_test json5-multi-comment-pretty {
SELECT json_pretty(' /* abc */ { /*def*/ aaa /* xyz */ : // to the end of line
123 /* xyz */ , /* 123 */ }');
} {{{
"aaa": 123
}}}
do_execsql_test json-pretty-ident-1 {
SELECT json_pretty('{x: 1}', '');
} {{{
"x": 1
}}}
do_execsql_test json-pretty-ident-2 {
SELECT json_pretty('{x: 1}', '11');
} {{{
11"x": 1
}}}
do_execsql_test json-pretty-ident-null {
SELECT json_pretty('{x: 1}', NULL);
} {{{
"x": 1
}}}
do_execsql_test json-pretty-ident-blob-1 {
SELECT json_pretty('{x: 1}', x'33');
} {{{
3"x": 1
}}}
# TODO
# Currently conversion from blob to string is not exactly the same as in sqlite.
# The blob below should evaluate to two whitespaces TEXT value
# do_execsql_test json-pretty-ident-blob-2 {
# SELECT json_pretty('{x: 1}', x'1111');
# } {{{
# "x": 1
# }}}
do_execsql_test json_array_str {
SELECT json_array('a')
} {{["a"]}}