Support file://localhost/foo URIs in serd_uri_to_path().

Support Windows file://c:/foo URIs in serd_uri_to_path() on all platforms.
100% test coverage (by line) for uri.c.


git-svn-id: http://svn.drobilla.net/serd/trunk@269 490d8e77-9747-427b-9fa3-0b8f29cee8a0

ChangeLog

@@ -19,6 +19,8 @@ serd (UNRELEASED) unstable; urgency=low
   * Escape ASCII control characters in output (e.g. fix problems with string
     literals that start with a backspace)
   * Improve URI resolution to cover most of the abnormal cases from RFC3986
+  * Support file://localhost/foo URIs in serd_uri_to_path()
+  * Support Windows file://c:/foo URIs in serd_uri_to_path() on all platforms
 
  -- David Robillard <d@drobilla.net>  (UNRELEASED)
 

src/serd_test.c

@@ -126,6 +126,7 @@ main()
 	}
 
 	// Test serd_strlen
+
 	const uint8_t str[] = { '"', '5', 0xE2, 0x82, 0xAC, '"', '\n', 0 };
 
 	size_t        n_bytes;
@@ -139,6 +140,7 @@ main()
 	}
 
 	// Test serd_strerror
+
 	const uint8_t* msg = NULL;
 	if (strcmp((const char*)(msg = serd_strerror(SERD_SUCCESS)), "Success")) {
 		fprintf(stderr, "Bad message `%s' for SERD_SUCCESS\n", msg);
@@ -151,7 +153,29 @@ main()
 			return 1;
 		}
 	}
-	
+
+	// Test serd_uri_to_path
+	const uint8_t* uri = (const uint8_t*)"file:///home/user/foo.ttl";
+	if (strcmp((const char*)serd_uri_to_path(uri), "/home/user/foo.ttl")) {
+		fprintf(stderr, "Bad path %s for %s\n", serd_uri_to_path(uri), uri);
+		return 1;
+	}
+	uri = (const uint8_t*)"file://localhost/home/user/foo.ttl";
+	if (strcmp((const char*)serd_uri_to_path(uri), "/home/user/foo.ttl")) {
+		fprintf(stderr, "Bad path %s for %s\n", serd_uri_to_path(uri), uri);
+		return 1;
+	}
+	uri = (const uint8_t*)"file:illegal/file/uri";
+	if (serd_uri_to_path(uri)) {
+		fprintf(stderr, "Converted invalid URI `%s' to path `%s'\n",
+		        uri, serd_uri_to_path(uri));
+	}
+	uri = (const uint8_t*)"file:///c:/awful/system";
+	if (strcmp((const char*)serd_uri_to_path(uri), "c:/awful/system")) {
+		fprintf(stderr, "Bad path %s for %s\n", serd_uri_to_path(uri), uri);
+		return 1;
+	}
+
 	printf("Success\n");
 	return 0;
 }

src/uri.c

@@ -26,29 +26,27 @@ SERD_API
 const uint8_t*
 serd_uri_to_path(const uint8_t* uri)
 {
-	const uint8_t* filename = NULL;
+	const uint8_t* path = NULL;
 	if (serd_uri_string_has_scheme(uri)) {
-		// Absolute URI, ensure it a file and chop scheme
 		if (strncmp((const char*)uri, "file:", 5)) {
 			fprintf(stderr, "Non-file URI `%s'\n", uri);
 			return NULL;
-		} else if (strncmp((const char*)uri + 5, "//", 2)) {
-			fprintf(stderr, "Illegal file URI `%s'\n", uri);
-			return NULL;
-#ifdef __WIN32__
-		} else if (!strncmp((const char*)uri, "file:///", 8)) {
-			filename = uri + 8;
-#else
+		} else if (!strncmp((const char*)uri, "file://localhost/", 17)) {
+			path = uri + 16;
 		} else if (!strncmp((const char*)uri, "file://", 7)) {
-			filename = uri + 7;
-#endif
+			path = uri + 7;
 		} else {
-			filename = uri + 5;
+			fprintf(stderr, "Invalid file URI `%s'\n", uri);
+			return NULL;
+		}
+		// Special case for awful Windows file URIs
+		if (is_alpha(path[1]) && path[2] == ':' && path[3] == '/') {
+			++path;  // Special case for terrible Windows file URIs
 		}
 	} else {
-		filename = uri;
+		path = uri;
 	}
-	return filename;
+	return path;
 }
 
 SERD_API