diff options
Diffstat (limited to 'Userland/Utilities/gron.cpp')
| -rw-r--r-- | Userland/Utilities/gron.cpp | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/Userland/Utilities/gron.cpp b/Userland/Utilities/gron.cpp new file mode 100644 index 0000000000..0c1b50eca9 --- /dev/null +++ b/Userland/Utilities/gron.cpp @@ -0,0 +1,137 @@ +/* + * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <AK/ByteBuffer.h> +#include <AK/JsonArray.h> +#include <AK/JsonObject.h> +#include <AK/JsonValue.h> +#include <AK/StringBuilder.h> +#include <LibCore/File.h> +#include <stdio.h> +#include <string.h> + +static bool use_color = false; +static void print(const String& name, const JsonValue&, Vector<String>& trail); + +static const char* color_name = ""; +static const char* color_index = ""; +static const char* color_brace = ""; +static const char* color_bool = ""; +static const char* color_null = ""; +static const char* color_string = ""; +static const char* color_off = ""; + +int main(int argc, char** argv) +{ + if (pledge("stdio tty rpath", nullptr) < 0) { + perror("pledge"); + return 1; + } + + if (isatty(STDOUT_FILENO)) + use_color = true; + + if (pledge("stdio rpath", nullptr) < 0) { + perror("pledge"); + return 1; + } + + if (argc != 2 || !strcmp(argv[1], "--help")) { + fprintf(stderr, "usage: gron <file>\n"); + fprintf(stderr, "Print each value in a JSON file with its fully expanded key.\n"); + return 0; + } + auto file = Core::File::construct(argv[1]); + if (!file->open(Core::IODevice::ReadOnly)) { + fprintf(stderr, "Couldn't open %s for reading: %s\n", argv[1], file->error_string()); + return 1; + } + + if (pledge("stdio", nullptr) < 0) { + perror("pledge"); + return 1; + } + + auto file_contents = file->read_all(); + auto json = JsonValue::from_string(file_contents); + ASSERT(json.has_value()); + + if (use_color) { + color_name = "\033[33;1m"; + color_index = "\033[35;1m"; + color_brace = "\033[36m"; + color_bool = "\033[32;1m"; + color_string = "\033[31;1m"; + color_null = "\033[34;1m"; + color_off = "\033[0m"; + } + + Vector<String> trail; + print("json", json.value(), trail); + return 0; +} + +static void print(const String& name, const JsonValue& value, Vector<String>& trail) +{ + for (size_t i = 0; i < trail.size(); ++i) + printf("%s", trail[i].characters()); + + printf("%s%s%s = ", color_name, name.characters(), color_off); + + if (value.is_object()) { + printf("%s{}%s;\n", color_brace, color_off); + trail.append(String::format("%s%s%s.", color_name, name.characters(), color_off)); + value.as_object().for_each_member([&](auto& on, auto& ov) { print(on, ov, trail); }); + trail.take_last(); + return; + } + if (value.is_array()) { + printf("%s[]%s;\n", color_brace, color_off); + trail.append(String::format("%s%s%s", color_name, name.characters(), color_off)); + for (int i = 0; i < value.as_array().size(); ++i) { + auto element_name = String::format("%s%s[%s%s%d%s%s]%s", color_off, color_brace, color_off, color_index, i, color_off, color_brace, color_off); + print(element_name, value.as_array()[i], trail); + } + trail.take_last(); + return; + } + switch (value.type()) { + case JsonValue::Type::Null: + printf("%s", color_null); + break; + case JsonValue::Type::Bool: + printf("%s", color_bool); + break; + case JsonValue::Type::String: + printf("%s", color_string); + break; + default: + printf("%s", color_index); + break; + } + + printf("%s%s;\n", value.serialized<StringBuilder>().characters(), color_off); +} |