cli: Refactor handling of negative numbers
[deliverable/babeltrace.git] / cli / babeltrace-cfg-cli-args.c
index 1a41bcbf29859707cf45c772521d931c7a42f488..af2274610c66273b334fc120090936d56e9b1c1f 100644 (file)
@@ -70,9 +70,6 @@ enum ini_parsing_fsm_state {
        /* Expect a value */
        INI_EXPECT_VALUE,
 
-       /* Expect a negative number value */
-       INI_EXPECT_VALUE_NUMBER_NEG,
-
        /* Expect a comma character (',') */
        INI_EXPECT_COMMA,
 };
@@ -188,6 +185,41 @@ void ini_append_error_expecting(struct ini_parsing_state *state,
        g_string_append_printf(state->ini_error, "^\n\n");
 }
 
+/* Parse the next token as a number and return its negation. */
+static
+bt_value *ini_parse_neg_number(struct ini_parsing_state *state)
+{
+       bt_value *value = NULL;
+       GTokenType token_type = g_scanner_get_next_token(state->scanner);
+
+       switch (token_type) {
+       case G_TOKEN_INT:
+       {
+               /* Negative integer */
+               uint64_t int_val = state->scanner->value.v_int64;
+
+               if (int_val > (1ULL << 63) - 1) {
+                       g_string_append_printf(state->ini_error,
+                               "Integer value -%" PRIu64 " is outside the range of a 64-bit signed integer\n",
+                               int_val);
+               } else {
+                       value = bt_value_integer_create_init(-((int64_t) int_val));
+               }
+
+               break;
+       }
+       case G_TOKEN_FLOAT:
+               /* Negative floating point number */
+               value = bt_value_real_create_init(-state->scanner->value.v_float);
+               break;
+       default:
+               ini_append_error_expecting(state, state->scanner, "value");
+               break;
+       }
+
+       return value;
+}
+
 static
 int ini_handle_state(struct ini_parsing_state *state)
 {
@@ -204,7 +236,6 @@ int ini_handle_state(struct ini_parsing_state *state)
                                        state->scanner, "'='");
                                break;
                        case INI_EXPECT_VALUE:
-                       case INI_EXPECT_VALUE_NUMBER_NEG:
                                ini_append_error_expecting(state,
                                        state->scanner, "value");
                                break;
@@ -271,8 +302,12 @@ int ini_handle_state(struct ini_parsing_state *state)
                case G_TOKEN_CHAR:
                        if (state->scanner->value.v_char == '-') {
                                /* Negative number */
-                               state->expecting =
-                                       INI_EXPECT_VALUE_NUMBER_NEG;
+                               value = ini_parse_neg_number(state);
+                               if (!value) {
+                                       goto error;
+                               }
+
+                               state->expecting = INI_EXPECT_COMMA;
                                goto success;
                        } else {
                                ini_append_error_expecting(state,
@@ -348,42 +383,6 @@ int ini_handle_state(struct ini_parsing_state *state)
                state->expecting = INI_EXPECT_COMMA;
                goto success;
        }
-       case INI_EXPECT_VALUE_NUMBER_NEG:
-       {
-               switch (token_type) {
-               case G_TOKEN_INT:
-               {
-                       /* Negative integer */
-                       uint64_t int_val = state->scanner->value.v_int64;
-
-                       if (int_val > (1ULL << 63) - 1) {
-                               g_string_append_printf(state->ini_error,
-                                       "Integer value -%" PRIu64 " is outside the range of a 64-bit signed integer\n",
-                                       int_val);
-                               goto error;
-                       }
-
-                       value = bt_value_integer_create_init(-((int64_t)int_val));
-                       break;
-               }
-               case G_TOKEN_FLOAT:
-                       /* Negative floating point number */
-                       value = bt_value_real_create_init(-state->scanner->value.v_float);
-                       break;
-               default:
-                       /* Unset value variable will trigger the error */
-                       break;
-               }
-
-               if (!value) {
-                       ini_append_error_expecting(state,
-                               state->scanner, "value");
-                       goto error;
-               }
-
-               state->expecting = INI_EXPECT_COMMA;
-               goto success;
-       }
        case INI_EXPECT_COMMA:
                if (token_type != G_TOKEN_CHAR) {
                        ini_append_error_expecting(state,
@@ -596,7 +595,7 @@ end:
  */
 static
 void plugin_comp_cls_names(const char *arg, char **name, char **plugin,
-               char **comp_cls, enum bt_component_class_type *comp_cls_type)
+               char **comp_cls, bt_component_class_type *comp_cls_type)
 {
        const char *at = arg;
        GString *gs_name = NULL;
@@ -775,7 +774,7 @@ end:
  */
 static
 struct bt_config_component *bt_config_component_create(
-               enum bt_component_class_type type,
+               bt_component_class_type type,
                const char *plugin_name, const char *comp_cls_name)
 {
        struct bt_config_component *cfg_component = NULL;
@@ -834,7 +833,7 @@ struct bt_config_component *bt_config_component_from_arg(const char *arg)
        char *name = NULL;
        char *plugin_name = NULL;
        char *comp_cls_name = NULL;
-       enum bt_component_class_type type;
+       bt_component_class_type type;
 
        plugin_comp_cls_names(arg, &name, &plugin_name, &comp_cls_name, &type);
        if (!plugin_name || !comp_cls_name) {
@@ -1993,7 +1992,10 @@ struct bt_config *bt_config_query_from_args(int argc, const char *argv[],
        int ret;
        struct bt_config *cfg = NULL;
        const char *leftover;
-       bt_value *params = bt_value_null;
+       bt_value *params;
+
+       params = bt_value_null;
+       bt_value_get_ref(bt_value_null);
 
        *retcode = 0;
        cfg = bt_config_query_create(initial_plugin_paths);
@@ -2289,7 +2291,7 @@ void print_run_usage(FILE *fp)
        fprintf(fp, "                                    in the plugin PLUGIN, add it to the graph,\n");
        fprintf(fp, "                                    and optionally name it NAME (you can also\n");
        fprintf(fp, "                                    specify the name with --name)\n");
-       fprintf(fp, "  -C, --connect=CONNECTION          Connect two created components (see the\n");
+       fprintf(fp, "  -x, --connect=CONNECTION          Connect two created components (see the\n");
        fprintf(fp, "                                    expected format of CONNECTION below)\n");
        fprintf(fp, "      --key=KEY                     Set the current initialization string\n");
        fprintf(fp, "                                    parameter key to KEY (see --value)\n");
@@ -2379,11 +2381,11 @@ struct bt_config *bt_config_run_from_args(int argc, const char *argv[],
        GString *cur_param_key = NULL;
        char error_buf[256] = { 0 };
        long retry_duration = -1;
-       enum bt_value_status status;
+       bt_value_status status;
        struct poptOption run_long_options[] = {
                { "base-params", 'b', POPT_ARG_STRING, NULL, OPT_BASE_PARAMS, NULL, NULL },
                { "component", 'c', POPT_ARG_STRING, NULL, OPT_COMPONENT, NULL, NULL },
-               { "connect", 'C', POPT_ARG_STRING, NULL, OPT_CONNECT, NULL, NULL },
+               { "connect", 'x', POPT_ARG_STRING, NULL, OPT_CONNECT, NULL, NULL },
                { "help", 'h', POPT_ARG_NONE, NULL, OPT_HELP, NULL, NULL },
                { "key", '\0', POPT_ARG_STRING, NULL, OPT_KEY, NULL, NULL },
                { "name", 'n', POPT_ARG_STRING, NULL, OPT_NAME, NULL, NULL },
@@ -3518,7 +3520,7 @@ int fill_implicit_ctf_inputs_args(GPtrArray *implicit_ctf_inputs_args,
 {
        int ret = 0;
        GList *leftover;
-       enum bt_value_status status;
+       bt_value_status status;
 
        for (leftover = leftovers; leftover != NULL;
                        leftover = g_list_next(leftover)) {
@@ -3737,7 +3739,7 @@ struct bt_config *bt_config_convert_from_args(int argc, const char *argv[],
                switch (opt) {
                case OPT_COMPONENT:
                {
-                       enum bt_component_class_type type;
+                       bt_component_class_type type;
                        const char *type_prefix;
 
                        /* Append current component's name if needed */
@@ -4099,7 +4101,7 @@ struct bt_config *bt_config_convert_from_args(int argc, const char *argv[],
                        append_implicit_component_param(
                                &implicit_text_args, "clock-gmt", "yes");
                        append_implicit_component_param(
-                               &implicit_trimmer_args, "clock-gmt", "yes");
+                               &implicit_trimmer_args, "gmt", "yes");
                        implicit_text_args.exists = true;
                        break;
                case OPT_CLOCK_OFFSET:
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