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Utilities: Add 'file' and 'definitions' arguments to cpp-preprocessor

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The 'file' argument allows specifying a file path.
The 'definitions' flag controls whether preprocessor definitions are
printed.
This commit is contained in:
Itamar 2021-08-08 21:13:02 +03:00 • committed by Andreas Kling
parent f6c9071f0d
commit fd864fbb74
1 changed files with 22 additions and 12 deletions
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20
Userland/Utilities/cpp-preprocessor.cpp
View file

@ -4,20 +4,30 @@
* SPDX-License-Identifier: BSD-2-Clause * SPDX-License-Identifier: BSD-2-Clause
*/ */
#include <AK/LexicalPath.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/File.h> #include <LibCore/File.h>
#include <LibCpp/Preprocessor.h> #include <LibCpp/Preprocessor.h>
int main(int, char**) int main(int argc, char** argv)
{ {
auto file = Core::File::construct("/home/anon/Source/little/other.h"); Core::ArgsParser args_parser;
const char* path = nullptr;
bool print_definitions = false;
args_parser.add_positional_argument(path, "File", "file", Core::ArgsParser::Required::Yes);
args_parser.add_option(print_definitions, "Print preprocessor definitions", "definitions", 'D');
args_parser.parse(argc, argv);
auto file = Core::File::construct(path);
if (!file->open(Core::OpenMode::ReadOnly)) { if (!file->open(Core::OpenMode::ReadOnly)) {
perror("open"); perror("open");
exit(1); exit(1);
} }
auto content = file->read_all(); auto content = file->read_all();
Cpp::Preprocessor cpp("other.h", StringView { content }); String name = LexicalPath::basename(path);
Cpp::Preprocessor cpp(name, StringView { content });
auto tokens = cpp.process_and_lex(); auto tokens = cpp.process_and_lex();
if (print_definitions) {
outln("Definitions:"); outln("Definitions:");
for (auto& definition : cpp.definitions()) { for (auto& definition : cpp.definitions()) {
if (definition.value.parameters.is_empty()) if (definition.value.parameters.is_empty())
@ -25,10 +35,10 @@ int main(int, char**)
else else
outln("{}({}): {}", definition.key, String::join(",", definition.value.parameters), definition.value.value); outln("{}({}): {}", definition.key, String::join(",", definition.value.parameters), definition.value.value);
} }
outln(""); outln("");
}
for (auto& token : tokens) { for (auto& token : tokens) {
dbgln("{}", token.to_string()); outln("{}", token.to_string());
} }
} }