Add name parameter to sord_read_file_handle (for error messages).

Support reading from string parameter or stdin in sordi.


git-svn-id: http://svn.drobilla.net/sord/trunk@119 3d64ff67-21c5-427c-a301-fe4f08042e5a

1 files changed, 54 insertions, 6 deletions

diff --git a/src/sordi.c b/src/sordi.c
index 2549549..7db7543 100644
--- a/src/sordi.c
+++ b/src/sordi.c
@@ -46,9 +46,11 @@ print_usage(const char* name, bool error)
 {
 	FILE* const os = error ? stderr : stdout;
 	fprintf(os, "Usage: %s [OPTION]... INPUT [BASE_URI]\n", name);
-	fprintf(os, "Load and re-serialise RDF syntax.\n\n");
+	fprintf(os, "Load and re-serialise RDF syntax.\n");
+	fprintf(os, "Use - for INPUT to read from standard input.\n\n");
 	fprintf(os, "  -h           Display this help and exit\n");
 	fprintf(os, "  -o SYNTAX    Output syntax (`turtle' or `ntriples')\n");
+	fprintf(os, "  -s INPUT     Parse INPUT as string (terminates options)\n");
 	fprintf(os, "  -v           Display version information and exit\n");
 	return error ? 1 : 0;
 }
@@ -67,13 +69,25 @@ main(int argc, char** argv)
 		return print_usage(argv[0], true);
 	}
 
-	SerdSyntax output_syntax = SERD_NTRIPLES;
+	FILE*          in_fd         = NULL;
+	SerdSyntax     output_syntax = SERD_NTRIPLES;
+	bool           from_file     = true;
+	const uint8_t* in_name       = NULL;
 	int a = 1;
 	for (; a < argc && argv[a][0] == '-'; ++a) {
-		if (argv[a][1] == 'h') {
+		if (argv[a][1] == '\0') {
+			in_name = (const uint8_t*)"(stdin)";
+			in_fd   = stdin;
+			break;
+		} else if (argv[a][1] == 'h') {
 			return print_usage(argv[0], false);
 		} else if (argv[a][1] == 'v') {
 			return print_version();
+		} else if (argv[a][1] == 's') {
+			in_name = (const uint8_t*)"(string)";
+			from_file = false;
+			++a;
+			break;
 		} else if (argv[a][1] == 'o') {
 			if (++a == argc) {
 				fprintf(stderr, "Missing value for -o\n");
@@ -94,6 +108,32 @@ main(int argc, char** argv)
 	}
 
 	const uint8_t* input = (const uint8_t*)argv[a++];
+	if (from_file) {
+		in_name = in_name ? in_name : input;
+		if (!in_fd) {
+			if (serd_uri_string_has_scheme(input)) {
+				// INPUT is an absolute URI, ensure it a file and chop scheme
+				if (strncmp((const char*)input, "file:", 5)) {
+					fprintf(stderr, "Unsupported URI scheme `%s'\n", input);
+					return 1;
+#ifdef __WIN32__
+				} else if (!strncmp((const char*)input, "file:///", 8)) {
+					input += 8;
+#else
+				} else if (!strncmp((const char*)input, "file://", 7)) {
+					input += 7;
+#endif
+				} else {
+					input += 5;
+				}
+			}
+			in_fd = fopen((const char*)input, "r");
+			if (!in_fd) {
+				fprintf(stderr, "Failed to open file %s\n", input);
+				return 1;
+			}
+		}
+	}
 
 	const uint8_t* base_uri_str = NULL;
 	SerdURI        base_uri;
@@ -104,20 +144,28 @@ main(int argc, char** argv)
 			return 1;
 		}
 		base_uri_str = in_base_uri;
-	} else  {  // Use input file URI
+	} else if (from_file) {  // Use input file URI
 		base_uri_str = input;
+	} else {
+		base_uri_str = (const uint8_t*)"";
 	}
 
 	if (serd_uri_parse(base_uri_str, &base_uri)) {
 		fprintf(stderr, "Invalid base URI <%s>\n", base_uri_str);
 		return 1;
 	}
-
+	
 	SordWorld* world = sord_world_new();
 	SordModel* sord  = sord_new(world, SORD_SPO|SORD_OPS, false);
 	SerdEnv*   env   = serd_env_new();
 
-	bool success = sord_read_file(sord, env, input, base_uri_str, NULL, NULL);
+	bool success = false;
+	if (from_file) {
+		sord_read_file_handle(sord, env, in_fd, in_name,
+		                      base_uri_str, NULL, NULL);
+	} else {
+		sord_read_string(sord, env, input, base_uri_str);
+	}
 
 	fprintf(stderr, "Loaded %zu statements\n", sord_num_quads(sord));