simdjson-utilities: simdjson Utilities

In RcppSimdJson: 'Rcpp' Bindings for the 'simdjson' Header-Only Library for 'JSON' Parsing

simdjson Utilities

Description

simdjson Utilities

Usage

is_valid_json(json)

is_valid_utf8(x)

fminify(json)

Arguments

json	JSON string(s), or raw vectors representing JSON string(s)
x	String(s), or raw vectors representing string(s).

Examples

prettified_json <-
    '[
    {
        "b": true,
        "c": null
    },
    {
        "b": [
            [
                1,
                2,
                3
            ],
            [
                4,
                5,
                6
            ]
        ],
        "c": "Q"
    }
]'

example_text <- list(
    valid_json = c(json1 = prettified_json,
                   json2 = '{\n\t"good_json":true\n}'),
    invalid_json = c(bad_json1 = "BAD JSON",
                     bad_json2 = `Encoding<-`('"fa\xE7ile"', "latin1")),
    mixed_json = c(na = NA_character_, good_json = '{"good_json":true}',
                   bad_json =  `Encoding<-`('"fa\xE7ile"', "latin1")),
    good_raw_json = charToRaw('{\n\t"good_json":true\n}'),
    bad_raw_json = charToRaw("JUNK"),
    list_of_raw_json = lapply(
        c(na = NA_character_, good_json = '{"good_json":true}',
          bad_json =  `Encoding<-`('"fa\xE7ile"', "latin1")),
        charToRaw
    ),
    not_utf8 = `Encoding<-`('"fa\xE7ile"', "latin1")
)

# UTF-8 validation ==========================================================
example_text$valid_json
is_valid_utf8(example_text$valid_json)

example_text$invalid_json
is_valid_utf8(example_text$invalid_json)

example_text$mixed_json
is_valid_utf8(example_text$mixed_json)

example_text$good_raw_json
is_valid_utf8(example_text$good_raw_json)

example_text$bad_raw_json
is_valid_utf8(example_text$bad_raw_json)

example_text$list_of_raw_json
is_valid_utf8(example_text$list_of_raw_json)

example_text$not_utf8
is_valid_utf8(example_text$not_utf8)
is_valid_utf8(iconv(example_text$not_utf8, from = "latin1", to = "UTF-8"))

# JSON validation ===========================================================
cat(example_text$valid_json[[1L]])
cat(example_text$valid_json[[2L]])
is_valid_json(example_text$valid_json)

example_text$invalid_json
is_valid_json(example_text$invalid_json)

example_text$mixed_json
is_valid_json(example_text$mixed_json)

example_text$good_raw_json
cat(rawToChar(example_text$good_raw_json))
is_valid_json(example_text$good_raw_json)

example_text$bad_raw_json
rawToChar(example_text$bad_raw_json)
is_valid_json(example_text$bad_raw_json)

example_text$list_of_raw_json
lapply(example_text$list_of_raw_json, rawToChar)
is_valid_json(example_text$list_of_raw_json)

example_text$not_utf8
Encoding(example_text$not_utf8)
is_valid_json(example_text$not_utf8)
is_valid_json(iconv(example_text$not_utf8, from = "latin1", to = "UTF-8"))

# JSON minification =========================================================
cat(example_text$valid_json[[1L]])
cat(example_text$valid_json[[2L]])
fminify(example_text$valid_json)

example_text$invalid_json
fminify(example_text$invalid_json)

example_text$mixed_json
fminify(example_text$mixed_json)

example_text$good_raw_json
cat(rawToChar(example_text$good_raw_json))
fminify(example_text$good_raw_json)

example_text$bad_raw_json
rawToChar(example_text$bad_raw_json)
fminify(example_text$bad_raw_json)

example_text$list_of_raw_json
lapply(example_text$list_of_raw_json, rawToChar)
fminify(example_text$list_of_raw_json)

example_text$not_utf8
Encoding(example_text$not_utf8)
fminify(example_text$not_utf8)
fminify(iconv(example_text$not_utf8, from = "latin1", to = "UTF-8"))

RcppSimdJson documentation built on Sept. 11, 2024, 6:17 p.m.