X-Git-Url: https://git.notmuchmail.org/git?p=notmuch;a=blobdiff_plain;f=tag-util.c;h=343c161f471aa827ff186df01e7c24afe71e5d06;hp=eab482f3012888b6c401b85b3775b01c274d7d5f;hb=4e2c351c588ad74f4800ca0344232be90387c54a;hpb=5c7990f2510e2783ba4d02ad893d712ef201336d

diff --git a/tag-util.c b/tag-util.c
index eab482f3..343c161f 100644
--- a/tag-util.c
+++ b/tag-util.c
@@ -31,6 +31,24 @@ line_error (tag_parse_status_t status,
     return status;
 }
 
+const char *
+illegal_tag (const char *tag, notmuch_bool_t remove)
+{
+
+    if (*tag == '\0' && ! remove)
+	return "empty tag forbidden";
+
+    /* This disallows adding tags starting with "-", in particular the
+     * non-removable tag "-" and enables notmuch tag to take long
+     * options more easily.
+     */
+
+    if (*tag == '-' && ! remove)
+	return "tag starting with '-' forbidden";
+
+    return NULL;
+}
+
 tag_parse_status_t
 parse_tag_line (void *ctx, char *line,
 		tag_op_flag_t flags,
@@ -40,14 +58,14 @@ parse_tag_line (void *ctx, char *line,
     char *tok = line;
     size_t tok_len = 0;
     char *line_for_error;
-    int ret = 0;
+    tag_parse_status_t ret = TAG_PARSE_SUCCESS;
 
     chomp_newline (line);
 
     line_for_error = talloc_strdup (ctx, line);
     if (line_for_error == NULL) {
 	fprintf (stderr, "Error: out of memory\n");
-	return -1;
+	return TAG_PARSE_OUT_OF_MEMORY;
     }
 
     /* remove leading space */
@@ -95,11 +113,13 @@ parse_tag_line (void *ctx, char *line,
 	remove = (*tok == '-');
 	tag = tok + 1;
 
-	/* Maybe refuse empty tags. */
-	if (! (flags & TAG_FLAG_BE_GENEROUS) && *tag == '\0') {
-	    ret = line_error (TAG_PARSE_INVALID, line_for_error,
-			      "empty tag");
-	    goto DONE;
+	/* Maybe refuse illegal tags. */
+	if (! (flags & TAG_FLAG_BE_GENEROUS)) {
+	    const char *msg = illegal_tag (tag, remove);
+	    if (msg) {
+		ret = line_error (TAG_PARSE_INVALID, line_for_error, msg);
+		goto DONE;
+	    }
 	}
 
 	/* Decode tag. */
@@ -109,7 +129,7 @@ parse_tag_line (void *ctx, char *line,
 	    goto DONE;
 	}
 
-	if (tag_op_list_append (ctx, tag_ops, tag, remove)) {
+	if (tag_op_list_append (tag_ops, tag, remove)) {
 	    ret = line_error (TAG_PARSE_OUT_OF_MEMORY, line_for_error,
 			      "aborting");
 	    goto DONE;
@@ -124,12 +144,6 @@ parse_tag_line (void *ctx, char *line,
     }
 
     /* tok now points to the query string */
-    if (hex_decode_inplace (tok) != HEX_SUCCESS) {
-	ret = line_error (TAG_PARSE_INVALID, line_for_error,
-			  "hex decoding of query %s failed", tok);
-	goto DONE;
-    }
-
     *query_string = tok;
 
   DONE:
@@ -137,6 +151,45 @@ parse_tag_line (void *ctx, char *line,
     return ret;
 }
 
+tag_parse_status_t
+parse_tag_command_line (void *ctx, int argc, char **argv,
+			char **query_str, tag_op_list_t *tag_ops)
+{
+
+    int i;
+
+    for (i = 0; i < argc; i++) {
+	if (strcmp (argv[i], "--") == 0) {
+	    i++;
+	    break;
+	}
+
+	if (argv[i][0] != '+' && argv[i][0] != '-')
+	    break;
+
+	notmuch_bool_t is_remove = argv[i][0] == '-';
+	const char *msg;
+
+	msg = illegal_tag (argv[i] + 1, is_remove);
+	if (msg) {
+	    fprintf (stderr, "Error: %s\n", msg);
+	    return TAG_PARSE_INVALID;
+	}
+
+	tag_op_list_append (tag_ops, argv[i] + 1, is_remove);
+    }
+
+    *query_str = query_string_from_args (ctx, argc - i, &argv[i]);
+
+    if (*query_str == NULL) {
+	fprintf (stderr, "Out of memory.\n");
+	return TAG_PARSE_OUT_OF_MEMORY;
+    }
+
+    return TAG_PARSE_SUCCESS;
+}
+
+
 static inline void
 message_error (notmuch_message_t *message,
 	       notmuch_status_t status,
@@ -294,7 +347,7 @@ tag_op_list_create (void *ctx)
     list->size = TAG_OP_LIST_INITIAL_SIZE;
     list->count = 0;
 
-    list->ops = talloc_array (ctx, tag_operation_t, list->size);
+    list->ops = talloc_array (list, tag_operation_t, list->size);
     if (list->ops == NULL)
 	return NULL;
 
@@ -303,8 +356,7 @@ tag_op_list_create (void *ctx)
 
 
 int
-tag_op_list_append (void *ctx,
-		    tag_op_list_t *list,
+tag_op_list_append (tag_op_list_t *list,
 		    const char *tag,
 		    notmuch_bool_t remove)
 {
@@ -314,7 +366,7 @@ tag_op_list_append (void *ctx,
 
     if (list->count == list->size) {
 	list->size *= 2;
-	list->ops = talloc_realloc (ctx, list->ops, tag_operation_t,
+	list->ops = talloc_realloc (list, list->ops, tag_operation_t,
 				    list->size);
 	if (list->ops == NULL) {
 	    fprintf (stderr, "Out of memory.\n");