Luna/apps/edit.cpp

#include <os/ArgumentParser.h>

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(int argc, char** argv)
{
    FILE* f;
    StringView pathname;

    ArgumentParser parser;
    parser.add_positional_argument(pathname, "file"_sv, true);
    parser.parse(argc, argv);

    f = fopen(pathname.chars(), "w");
    if (!f)
    {
        perror(pathname.chars());
        return 1;
    }

    char buffer[4096];

    while (1)
    {
        char* rc = fgets(buffer, sizeof(buffer), stdin);
        if (rc == 0) break;
        fputs(buffer, f);
    }

    fclose(f);

    return 0;
}