feat: added sling url decomposition

kernel/util/slingurl.c

@@ -0,0 +1,71 @@
+//
+// Created by rick on 26-03-21.
+//
+
+#include <string.h>
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <myke/mem/malloc.h>
+
+void slingurl_decompose(const char* url) {
+    uint32_t urllen = strlen(url);
+    if (urllen <= 0) {
+        printf("Url empty");
+        return;
+    }
+    char* lurl = malloc(urllen + 1);
+    strcpy(lurl, url);
+
+    // get path section
+    char* path = lurl;
+
+    // find fist selector
+    char* selector = strchr(lurl, '.');
+    int nselectors = 0;
+    // to lazy to deal with urls without selectors and extension
+    if (selector == NULL) goto free_malloc;
+    selector[0] = 0;
+    selector += 1;
+
+    // find suffix
+    char* suffix = strchr(selector, '/');
+    if (suffix != NULL) {
+        suffix[0] = 0;
+        suffix += 1;
+    }
+
+    // pick last "suffix" as extension
+    char* extension = strrchr(selector, '.');
+    if (extension == NULL) {
+        // no dots in suffix section, so only an extension
+        extension = selector;
+        selector = NULL;
+    } else {
+        extension[0] = 0;
+        extension += 1;
+    }
+
+    if (selector != NULL) {
+        nselectors = 1;
+        char* cselector = selector;
+        while ((cselector = strchr(cselector, '.')) != NULL) {
+            cselector[0] = 0;
+            cselector += 1;
+            nselectors++;
+        }
+    }
+
+    printf("path: %s\n", path);
+    printf("selectors: ");
+    char* cselector = selector;
+    for (int i = 0; i < nselectors; ++i) {
+        printf("%s,", cselector);
+        cselector += strlen(cselector) + 1;
+    }
+    printf("\n");
+    printf("extension: %s\n", extension);
+    printf("suffix: %s\n", suffix);
+    free_malloc:
+    free(lurl);
+}