add: program to generate the README.md from

README_COMPLET.md

.gitignore

@@ -0,0 +1 @@
+a.out

create_short.c

@@ -0,0 +1,71 @@
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#define BUTTON "\n### [More](https://urlz.fr/mqBB)"
+#define TOTAL_SIZE 2272
+#define MAX_SIZE TOTAL_SIZE - strlen(BUTTON)
+
+char* read_file(const char* path)
+{
+    char* content;
+    int fd;
+
+    fd = open(path, O_RDONLY);
+    if (fd == -1)
+        goto open_fail;
+
+    content = malloc((TOTAL_SIZE + 1) * sizeof(char));
+    if (content == NULL)
+        goto alloc_fail;
+
+    int written = read(fd, content, MAX_SIZE);
+    if (written == -1)
+        goto read_fail;
+    
+    content[written] = '\0';
+
+    close(fd);
+    return content;
+
+    read_fail:
+    alloc_fail:
+    free(content);
+
+    open_fail:
+    close(fd);
+    return NULL;
+}
+
+int write_file(const char* path, const char* content)
+{
+    int fd = open(path, O_WRONLY | O_TRUNC);
+
+    if (fd == -1)
+        return 1;
+
+    return write(fd, content, strlen(content));
+}
+
+int main(int ac, char **av)
+{
+    char* path;
+
+    if (ac > 2)
+        path = av[1];
+    else
+        path = "README_COMPLET.md";
+
+    char* content = read_file(path);
+    if (content == NULL)
+        return 1;
+
+    strcat(content, BUTTON);
+
+    int ret = write_file("README.md", content);
+    free(content);
+    return ret;
+}

create_short.sh

@@ -0,0 +1,2 @@
+gcc -g -Wall -Werror -Wextra create_short.c &&
+./a.out