mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-12-02 04:20:28 +00:00
1682f0b760
SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
81 lines
1.8 KiB
C++
81 lines
1.8 KiB
C++
/*
|
|
* Copyright (c) 2020, Matthew L. Curry <matthew.curry@gmail.com>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <AK/RefPtr.h>
|
|
#include <LibCore/ArgsParser.h>
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
struct linebuf {
|
|
char* buf = NULL;
|
|
size_t len = 0;
|
|
};
|
|
|
|
static FILE* get_stream(const char* filepath, const char* perms)
|
|
{
|
|
FILE* ret;
|
|
|
|
if (filepath == nullptr) {
|
|
if (perms[0] == 'r')
|
|
return stdin;
|
|
return stdout;
|
|
}
|
|
|
|
ret = fopen(filepath, perms);
|
|
if (ret == nullptr) {
|
|
perror("fopen");
|
|
exit(1);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int main(int argc, char** argv)
|
|
{
|
|
if (pledge("stdio rpath wpath cpath", nullptr) > 0) {
|
|
perror("pledge");
|
|
return 1;
|
|
}
|
|
|
|
const char* inpath = nullptr;
|
|
const char* outpath = nullptr;
|
|
Core::ArgsParser args_parser;
|
|
args_parser.add_positional_argument(inpath, "Input file", "input", Core::ArgsParser::Required::No);
|
|
args_parser.add_positional_argument(outpath, "Output file", "output", Core::ArgsParser::Required::No);
|
|
args_parser.parse(argc, argv);
|
|
|
|
FILE* infile = get_stream(inpath, "r");
|
|
FILE* outfile = get_stream(outpath, "w");
|
|
|
|
struct linebuf buffers[2];
|
|
struct linebuf* previous = &(buffers[0]);
|
|
struct linebuf* current = &(buffers[1]);
|
|
bool first_run = true;
|
|
for (;;) {
|
|
errno = 0;
|
|
ssize_t rc = getline(&(current->buf), &(current->len), infile);
|
|
if (rc < 0 && errno != 0) {
|
|
perror("getline");
|
|
exit(1);
|
|
}
|
|
if (rc < 0)
|
|
break;
|
|
if (!first_run && strcmp(current->buf, previous->buf) == 0)
|
|
continue;
|
|
|
|
fputs(current->buf, outfile);
|
|
swap(current, previous);
|
|
first_run = false;
|
|
}
|
|
|
|
fclose(infile);
|
|
fclose(outfile);
|
|
|
|
return 0;
|
|
}
|