--- /dev/null
+/*
+ * Copyright 2019 Philippe Proulx <pproulx@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <glib.h>
+
+#include "common/assert.h"
+#include "common/common.h"
+
+#include "argpar.h"
+
+static
+void destroy_item(struct bt_argpar_item * const item)
+{
+ if (!item) {
+ goto end;
+ }
+
+ if (item->type == BT_ARGPAR_ITEM_TYPE_OPT) {
+ struct bt_argpar_item_opt * const opt_item = (void *) item;
+
+ g_free((void *) opt_item->arg);
+ }
+
+ g_free(item);
+
+end:
+ return;
+}
+
+static
+struct bt_argpar_item_opt *create_opt_item(
+ const struct bt_argpar_opt_descr * const descr,
+ const char * const arg)
+{
+ struct bt_argpar_item_opt *opt_item =
+ g_new0(struct bt_argpar_item_opt, 1);
+
+ if (!opt_item) {
+ goto end;
+ }
+
+ opt_item->base.type = BT_ARGPAR_ITEM_TYPE_OPT;
+ opt_item->descr = descr;
+
+ if (arg) {
+ opt_item->arg = g_strdup(arg);
+ if (!opt_item->arg) {
+ goto error;
+ }
+ }
+
+ goto end;
+
+error:
+ destroy_item(&opt_item->base);
+ opt_item = NULL;
+
+end:
+ return opt_item;
+}
+
+static
+struct bt_argpar_item_non_opt *create_non_opt_item(const char * const arg,
+ const unsigned int orig_index,
+ const unsigned int non_opt_index)
+{
+ struct bt_argpar_item_non_opt * const non_opt_item =
+ g_new0(struct bt_argpar_item_non_opt, 1);
+
+ if (!non_opt_item) {
+ goto end;
+ }
+
+ non_opt_item->base.type = BT_ARGPAR_ITEM_TYPE_NON_OPT;
+ non_opt_item->arg = arg;
+ non_opt_item->orig_index = orig_index;
+ non_opt_item->non_opt_index = non_opt_index;
+
+end:
+ return non_opt_item;
+}
+
+static
+const struct bt_argpar_opt_descr *find_descr(
+ const struct bt_argpar_opt_descr * const descrs,
+ const char short_name, const char * const long_name)
+{
+ const struct bt_argpar_opt_descr *descr;
+
+ for (descr = descrs; descr->short_name || descr->long_name; descr++) {
+ if (short_name && descr->short_name &&
+ short_name == descr->short_name) {
+ goto end;
+ }
+
+ if (long_name && descr->long_name &&
+ strcmp(long_name, descr->long_name) == 0) {
+ goto end;
+ }
+ }
+
+end:
+ return !descr->short_name && !descr->long_name ? NULL : descr;
+}
+
+enum parse_orig_arg_opt_ret {
+ PARSE_ORIG_ARG_OPT_RET_OK,
+ PARSE_ORIG_ARG_OPT_RET_ERROR_UNKNOWN_OPT = -2,
+ PARSE_ORIG_ARG_OPT_RET_ERROR = -1,
+};
+
+static
+enum parse_orig_arg_opt_ret parse_short_opts(const char * const short_opts,
+ const char * const next_orig_arg,
+ const struct bt_argpar_opt_descr * const descrs,
+ struct bt_argpar_parse_ret * const parse_ret,
+ bool * const used_next_orig_arg)
+{
+ enum parse_orig_arg_opt_ret ret = PARSE_ORIG_ARG_OPT_RET_OK;
+ const char *short_opt_ch = short_opts;
+
+ if (strlen(short_opts) == 0) {
+ g_string_append(parse_ret->error, "Invalid argument");
+ goto error;
+ }
+
+ while (*short_opt_ch) {
+ const char *opt_arg = NULL;
+ const struct bt_argpar_opt_descr *descr;
+ struct bt_argpar_item_opt *opt_item;
+
+ /* Find corresponding option descriptor */
+ descr = find_descr(descrs, *short_opt_ch, NULL);
+ if (!descr) {
+ ret = PARSE_ORIG_ARG_OPT_RET_ERROR_UNKNOWN_OPT;
+ g_string_append_printf(parse_ret->error,
+ "Unknown option `-%c`", *short_opt_ch);
+ goto error;
+ }
+
+ if (descr->with_arg) {
+ if (short_opt_ch[1]) {
+ /* `-oarg` form */
+ opt_arg = &short_opt_ch[1];
+ } else {
+ /* `-o arg` form */
+ opt_arg = next_orig_arg;
+ *used_next_orig_arg = true;
+ }
+
+ /*
+ * We accept `-o ''` (empty option's argument),
+ * but not `-o` alone if an option's argument is
+ * expected.
+ */
+ if (!opt_arg || (short_opt_ch[1] && strlen(opt_arg) == 0)) {
+ g_string_append_printf(parse_ret->error,
+ "Missing required argument for option `-%c`",
+ *short_opt_ch);
+ *used_next_orig_arg = false;
+ goto error;
+ }
+ }
+
+ /* Create and append option argument */
+ opt_item = create_opt_item(descr, opt_arg);
+ if (!opt_item) {
+ goto error;
+ }
+
+ g_ptr_array_add(parse_ret->items, opt_item);
+
+ if (descr->with_arg) {
+ /* Option has an argument: no more options */
+ break;
+ }
+
+ /* Go to next short option */
+ short_opt_ch++;
+ }
+
+ goto end;
+
+error:
+ if (ret == PARSE_ORIG_ARG_OPT_RET_OK) {
+ ret = PARSE_ORIG_ARG_OPT_RET_ERROR;
+ }
+
+end:
+ return ret;
+}
+
+static
+enum parse_orig_arg_opt_ret parse_long_opt(const char * const long_opt_arg,
+ const char * const next_orig_arg,
+ const struct bt_argpar_opt_descr * const descrs,
+ struct bt_argpar_parse_ret * const parse_ret,
+ bool * const used_next_orig_arg)
+{
+ const size_t max_len = 127;
+ enum parse_orig_arg_opt_ret ret = PARSE_ORIG_ARG_OPT_RET_OK;
+ const struct bt_argpar_opt_descr *descr;
+ struct bt_argpar_item_opt *opt_item;
+
+ /* Option's argument, if any */
+ const char *opt_arg = NULL;
+
+ /* Position of first `=`, if any */
+ const char *eq_pos;
+
+ /* Buffer holding option name when `long_opt_arg` contains `=` */
+ char buf[max_len + 1];
+
+ /* Option name */
+ const char *long_opt_name = long_opt_arg;
+
+ if (strlen(long_opt_arg) == 0) {
+ g_string_append(parse_ret->error, "Invalid argument");
+ goto error;
+ }
+
+ /* Find the first `=` in original argument */
+ eq_pos = strchr(long_opt_arg, '=');
+ if (eq_pos) {
+ const size_t long_opt_name_size = eq_pos - long_opt_arg;
+
+ /* Isolate the option name */
+ if (long_opt_name_size > max_len) {
+ g_string_append_printf(parse_ret->error,
+ "Invalid argument `--%s`", long_opt_arg);
+ goto error;
+ }
+
+ memcpy(buf, long_opt_arg, long_opt_name_size);
+ buf[long_opt_name_size] = '\0';
+ long_opt_name = buf;
+ }
+
+ /* Find corresponding option descriptor */
+ descr = find_descr(descrs, '\0', long_opt_name);
+ if (!descr) {
+ g_string_append_printf(parse_ret->error,
+ "Unknown option `--%s`", long_opt_name);
+ ret = PARSE_ORIG_ARG_OPT_RET_ERROR_UNKNOWN_OPT;
+ goto error;
+ }
+
+ /* Find option's argument if any */
+ if (descr->with_arg) {
+ if (eq_pos) {
+ /* `--long-opt=arg` style */
+ opt_arg = eq_pos + 1;
+ } else {
+ /* `--long-opt arg` style */
+ if (!next_orig_arg) {
+ g_string_append_printf(parse_ret->error,
+ "Missing required argument for option `--%s`",
+ long_opt_name);
+ goto error;
+ }
+
+ opt_arg = next_orig_arg;
+ *used_next_orig_arg = true;
+ }
+ }
+
+ /* Create and append option argument */
+ opt_item = create_opt_item(descr, opt_arg);
+ if (!opt_item) {
+ goto error;
+ }
+
+ g_ptr_array_add(parse_ret->items, opt_item);
+ goto end;
+
+error:
+ if (ret == PARSE_ORIG_ARG_OPT_RET_OK) {
+ ret = PARSE_ORIG_ARG_OPT_RET_ERROR;
+ }
+
+end:
+ return ret;
+}
+
+static
+enum parse_orig_arg_opt_ret parse_orig_arg_opt(const char * const orig_arg,
+ const char * const next_orig_arg,
+ const struct bt_argpar_opt_descr * const descrs,
+ struct bt_argpar_parse_ret * const parse_ret,
+ bool * const used_next_orig_arg)
+{
+ enum parse_orig_arg_opt_ret ret = PARSE_ORIG_ARG_OPT_RET_OK;
+
+ BT_ASSERT(orig_arg[0] == '-');
+
+ if (orig_arg[1] == '-') {
+ /* Long option */
+ ret = parse_long_opt(&orig_arg[2],
+ next_orig_arg, descrs, parse_ret,
+ used_next_orig_arg);
+ } else {
+ /* Short option */
+ ret = parse_short_opts(&orig_arg[1],
+ next_orig_arg, descrs, parse_ret,
+ used_next_orig_arg);
+ }
+
+ return ret;
+}
+
+static
+void prepend_while_parsing_arg_to_error(GString * const error,
+ const unsigned int i, const char * const arg)
+{
+ /* 🙁 There's no g_string_prepend_printf()! */
+ GString * const tmp_str = g_string_new(NULL);
+
+ BT_ASSERT(error);
+ BT_ASSERT(arg);
+
+ if (!tmp_str) {
+ goto end;
+ }
+
+ g_string_append_printf(tmp_str, "While parsing argument #%u (`%s`): %s",
+ i + 1, arg, error->str);
+ g_string_assign(error, tmp_str->str);
+ g_string_free(tmp_str, TRUE);
+
+end:
+ return;
+}
+
+BT_HIDDEN
+struct bt_argpar_parse_ret bt_argpar_parse(unsigned int argc,
+ const char * const *argv,
+ const struct bt_argpar_opt_descr * const descrs,
+ bool fail_on_unknown_opt)
+{
+ struct bt_argpar_parse_ret parse_ret = { 0 };
+ unsigned int i;
+ unsigned int non_opt_index = 0;
+
+ parse_ret.error = g_string_new(NULL);
+ if (!parse_ret.error) {
+ goto error;
+ }
+
+ parse_ret.items = g_ptr_array_new_with_free_func(
+ (GDestroyNotify) destroy_item);
+ if (!parse_ret.items) {
+ goto error;
+ }
+
+ for (i = 0; i < argc; i++) {
+ enum parse_orig_arg_opt_ret parse_orig_arg_opt_ret;
+ bool used_next_orig_arg = false;
+ const char * const orig_arg = argv[i];
+ const char * const next_orig_arg =
+ i < argc - 1 ? argv[i + 1] : NULL;
+
+ if (orig_arg[0] != '-') {
+ /* Non-option argument */
+ struct bt_argpar_item_non_opt *non_opt_item =
+ create_non_opt_item(orig_arg, i, non_opt_index);
+
+ if (!non_opt_item) {
+ goto error;
+ }
+
+ non_opt_index++;
+ g_ptr_array_add(parse_ret.items, non_opt_item);
+ continue;
+ }
+
+ /* Option argument */
+ parse_orig_arg_opt_ret = parse_orig_arg_opt(orig_arg,
+ next_orig_arg, descrs, &parse_ret, &used_next_orig_arg);
+ switch (parse_orig_arg_opt_ret) {
+ case PARSE_ORIG_ARG_OPT_RET_OK:
+ break;
+ case PARSE_ORIG_ARG_OPT_RET_ERROR_UNKNOWN_OPT:
+ BT_ASSERT(!used_next_orig_arg);
+
+ if (fail_on_unknown_opt) {
+ prepend_while_parsing_arg_to_error(
+ parse_ret.error, i, orig_arg);
+ goto error;
+ }
+
+ /*
+ * The current original argument is not
+ * considered ingested because it triggered an
+ * unknown option.
+ */
+ parse_ret.ingested_orig_args = i;
+ g_string_free(parse_ret.error, TRUE);
+ parse_ret.error = NULL;
+ goto end;
+ case PARSE_ORIG_ARG_OPT_RET_ERROR:
+ prepend_while_parsing_arg_to_error(
+ parse_ret.error, i, orig_arg);
+ goto error;
+ default:
+ bt_common_abort();
+ }
+
+ if (used_next_orig_arg) {
+ i++;
+ }
+ }
+
+ parse_ret.ingested_orig_args = argc;
+ g_string_free(parse_ret.error, TRUE);
+ parse_ret.error = NULL;
+ goto end;
+
+error:
+ if (parse_ret.items) {
+ /* That's how we indicate that an error occured */
+ g_ptr_array_free(parse_ret.items, TRUE);
+ parse_ret.items = NULL;
+ }
+
+end:
+ return parse_ret;
+}
+
+BT_HIDDEN
+void bt_argpar_parse_ret_fini(struct bt_argpar_parse_ret *ret)
+{
+ BT_ASSERT(ret);
+
+ if (ret->items) {
+ g_ptr_array_free(ret->items, TRUE);
+ ret->items = NULL;
+ }
+
+ if (ret->error) {
+ g_string_free(ret->error, TRUE);
+ ret->error = NULL;
+ }
+}
--- /dev/null
+#ifndef BABELTRACE_ARGPAR_H
+#define BABELTRACE_ARGPAR_H
+
+/*
+ * Copyright 2019 Philippe Proulx <pproulx@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <glib.h>
+#include <stdbool.h>
+
+#include "common/macros.h"
+
+/* Sentinel for an option descriptor array */
+#define BT_ARGPAR_OPT_DESCR_SENTINEL { -1, '\0', NULL, false }
+
+/* Option descriptor */
+struct bt_argpar_opt_descr {
+ /* Numeric ID for this option */
+ const int id;
+
+ /* Short option character, or `\0` */
+ const char short_name;
+
+ /* Long option name (without `--`), or `NULL` */
+ const char * const long_name;
+
+ /* True if this option has an argument */
+ const bool with_arg;
+};
+
+/* Item type */
+enum bt_argpar_item_type {
+ /* Option */
+ BT_ARGPAR_ITEM_TYPE_OPT,
+
+ /* Non-option */
+ BT_ARGPAR_ITEM_TYPE_NON_OPT,
+};
+
+/* Base item */
+struct bt_argpar_item {
+ enum bt_argpar_item_type type;
+};
+
+/* Option item */
+struct bt_argpar_item_opt {
+ struct bt_argpar_item base;
+
+ /* Corresponding descriptor */
+ const struct bt_argpar_opt_descr *descr;
+
+ /* Argument, or `NULL` if none */
+ const char *arg;
+};
+
+/* Non-option item */
+struct bt_argpar_item_non_opt {
+ struct bt_argpar_item base;
+
+ /*
+ * Complete argument, pointing to one of the entries of the
+ * original arguments (`argv`).
+ */
+ const char *arg;
+
+ /* Index of this argument amongst all original arguments (`argv`) */
+ unsigned int orig_index;
+
+ /* Index of this argument amongst other non-option arguments */
+ unsigned int non_opt_index;
+};
+
+/* What is returned by bt_argpar_parse() */
+struct bt_argpar_parse_ret {
+ /* Array of `struct bt_argpar_item *`, or `NULL` on error */
+ GPtrArray *items;
+
+ /* Error string, or `NULL` if none */
+ GString *error;
+
+ /* Number of original arguments (`argv`) ingested */
+ unsigned int ingested_orig_args;
+};
+
+/*
+ * Parses the arguments `argv` of which the count is `argc` using the
+ * sentinel-terminated (use `BT_ARGPAR_OPT_DESCR_SENTINEL`) option
+ * descriptor array `descrs`.
+ *
+ * This function considers ALL the elements of `argv`, including the
+ * first one, so that you would typically pass `argc - 1` and
+ * `&argv[1]` from what main() receives.
+ *
+ * This argument parser supports:
+ *
+ * * Short options without an argument, possibly tied together:
+ *
+ * -f -auf -n
+ *
+ * * Short options with argument:
+ *
+ * -b 45 -f/mein/file -xyzhello
+ *
+ * * Long options without an argument:
+ *
+ * --five-guys --burger-king --pizza-hut --subway
+ *
+ * * Long options with arguments:
+ *
+ * --security enable --time=18.56
+ *
+ * * Non-option arguments (anything else).
+ *
+ * This function does not accept `-` or `--` as arguments. The latter
+ * means "end of options" for many command-line tools, but this function
+ * is all about keeping the order of the arguments, so it does not mean
+ * much to put them at the end. This has the side effect that a
+ * non-option argument cannot have the form of an option, for example if
+ * you need to pass the exact relative path `--component`. In that case,
+ * you would need to pass `./--component`. There's no generic way to
+ * escape `-` for the moment.
+ *
+ * This function accepts duplicate options (the resulting array of items
+ * contains one entry for each instance).
+ *
+ * On success, this function returns an array of items
+ * (`struct bt_argpar_item *`). Each item is to be casted to the
+ * appropriate type (`struct bt_argpar_item_opt *` or
+ * `struct bt_argpar_item_non_opt *`) depending on its type.
+ *
+ * The returned array contains the items in the same order that the
+ * arguments were parsed, including non-option arguments. This means,
+ * for example, that for
+ *
+ * --hello --meow=23 /path/to/file -b
+ *
+ * the function returns an array of four items: two options, one
+ * non-option, and one option.
+ *
+ * In the returned structure, `ingested_orig_args` is the number of
+ * ingested arguments within `argv` to produce the resulting array of
+ * items. If `fail_on_unknown_opt` is true, then on success
+ * `ingested_orig_args` is equal to `argc`. Otherwise,
+ * `ingested_orig_args` contains the number of original arguments until
+ * an unknown _option_ occurs. For example, with
+ *
+ * --great --white contact nuance --shark nuclear
+ *
+ * if `--shark` is not described within `descrs` and
+ * `fail_on_unknown_opt` is false, then `ingested_orig_args` is 4 (two
+ * options, two non-options), whereas `argc` is 6.
+ *
+ * This makes it possible to know where a command name is, for example.
+ * With those arguments:
+ *
+ * --verbose --stuff=23 do-something --specific-opt -f -b
+ *
+ * and the descriptors for `--verbose` and `--stuff` only, the function
+ * returns the `--verbose` and `--stuff` option items, the
+ * `do-something` non-option item, and that three original arguments
+ * were ingested. This means you can start the next argument parsing
+ * stage, with option descriptors depending on the command name, at
+ * `&argv[3]`.
+ *
+ * Note that `ingested_orig_args` is not always equal to the number of
+ * returned items, as
+ *
+ * --hello -fdw
+ *
+ * for example contains two ingested original arguments, but four
+ * resulting items.
+ *
+ * On failure, the returned structure's `items` member is `NULL`, and
+ * the `error` string member contains details about the error.
+ *
+ * You can finalize the returned structure with
+ * bt_argpar_parse_ret_fini().
+ */
+BT_HIDDEN
+struct bt_argpar_parse_ret bt_argpar_parse(unsigned int argc,
+ const char * const *argv,
+ const struct bt_argpar_opt_descr *descrs,
+ bool fail_on_unknown_opt);
+
+/*
+ * Finalizes what is returned by bt_argpar_parse().
+ *
+ * It is safe to call bt_argpar_parse() multiple times with the same
+ * structure.
+ */
+BT_HIDDEN
+void bt_argpar_parse_ret_fini(struct bt_argpar_parse_ret *ret);
+
+#endif /* BABELTRACE_ARGPAR_H */
--- /dev/null
+/*
+ * Copyright (c) 2019 Philippe Proulx <pproulx@efficios.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; under version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <glib.h>
+
+#include "tap/tap.h"
+#include "common/assert.h"
+
+#include "argpar/argpar.h"
+
+/*
+ * Tests that the command line `cmdline`, with non-quoted
+ * space-delimited arguments, once parsed given the option descriptors
+ * `descrs` and the option `fail_on_unknown_opt`, succeeds and gives the
+ * expected command line `expected_cmd_line` and number of ingested
+ * original arguments `expected_ingested_orig_args`.
+ *
+ * The resulting command-line is built from the resulting arguments,
+ * space-delimiting each argument, preferring the `--long-opt=arg` style
+ * over the `-s arg` style, and using the `arg<A,B>` form for non-option
+ * arguments where `A` is the original argument index and `B` is the
+ * non-option argument index.
+ */
+static
+void test_succeed(const char *cmdline,
+ const char *expected_cmd_line,
+ const struct bt_argpar_opt_descr *descrs,
+ unsigned int expected_ingested_orig_args)
+{
+ struct bt_argpar_parse_ret parse_ret;
+ GString *res_str = g_string_new(NULL);
+ gchar **argv = g_strsplit(cmdline, " ", 0);
+ unsigned int i;
+
+ BT_ASSERT(argv);
+ BT_ASSERT(res_str);
+ parse_ret = bt_argpar_parse(g_strv_length(argv),
+ (const char * const *) argv, descrs, false);
+ ok(parse_ret.items,
+ "bt_argpar_parse() succeeds for command line `%s`", cmdline);
+ ok(!parse_ret.error,
+ "bt_argpar_parse() does not write an error for command line `%s`", cmdline);
+ ok(parse_ret.ingested_orig_args == expected_ingested_orig_args,
+ "bt_argpar_parse() returns the correct number of ingested "
+ "original arguments for command line `%s`", cmdline);
+ if (parse_ret.ingested_orig_args != expected_ingested_orig_args) {
+ diag("Expected: %u Got: %u", expected_ingested_orig_args,
+ parse_ret.ingested_orig_args);
+ }
+
+ if (!parse_ret.items) {
+ fail("bt_argpar_parse() returns the expected parsed arguments "
+ "for command line `%s`", cmdline);
+ goto end;
+ }
+
+ for (i = 0; i < parse_ret.items->len; i++) {
+ const struct bt_argpar_item *arg = parse_ret.items->pdata[i];
+
+ switch (arg->type) {
+ case BT_ARGPAR_ITEM_TYPE_OPT:
+ {
+ const struct bt_argpar_item_opt *arg_opt =
+ (const void *) arg;
+
+ if (arg_opt->descr->long_name) {
+ g_string_append_printf(res_str, "--%s",
+ arg_opt->descr->long_name);
+
+ if (arg_opt->arg) {
+ g_string_append_printf(res_str, "=%s",
+ arg_opt->arg);
+ }
+
+ g_string_append_c(res_str, ' ');
+ } else if (arg_opt->descr->short_name) {
+ g_string_append_printf(res_str, "-%c",
+ arg_opt->descr->short_name);
+
+ if (arg_opt->arg) {
+ g_string_append_printf(res_str, " %s",
+ arg_opt->arg);
+ }
+
+ g_string_append_c(res_str, ' ');
+ }
+
+ break;
+ }
+ case BT_ARGPAR_ITEM_TYPE_NON_OPT:
+ {
+ const struct bt_argpar_item_non_opt *arg_non_opt =
+ (const void *) arg;
+
+ g_string_append_printf(res_str, "%s<%u,%u> ",
+ arg_non_opt->arg, arg_non_opt->orig_index,
+ arg_non_opt->non_opt_index);
+ break;
+ }
+ default:
+ abort();
+ }
+ }
+
+ if (res_str->len > 0) {
+ g_string_truncate(res_str, res_str->len - 1);
+ }
+
+ ok(strcmp(expected_cmd_line, res_str->str) == 0,
+ "bt_argpar_parse() returns the expected parsed arguments "
+ "for command line `%s`", cmdline);
+ if (strcmp(expected_cmd_line, res_str->str) != 0) {
+ diag("Expected: `%s`", expected_cmd_line);
+ diag("Got: `%s`", res_str->str);
+ }
+
+end:
+ bt_argpar_parse_ret_fini(&parse_ret);
+ g_string_free(res_str, TRUE);
+ g_strfreev(argv);
+}
+
+static
+void succeed_tests(void)
+{
+ /* No arguments */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "",
+ "",
+ descrs, 0);
+ }
+
+ /* Single long option */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, '\0', "salut", false },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "--salut",
+ "--salut",
+ descrs, 1);
+ }
+
+ /* Single short option */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, 'f', NULL, false },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "-f",
+ "-f",
+ descrs, 1);
+ }
+
+ /* Short and long option (aliases) */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, 'f', "flaw", false },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "-f --flaw",
+ "--flaw --flaw",
+ descrs, 2);
+ }
+
+ /* Long option with argument (space form) */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, '\0', "tooth", true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "--tooth 67",
+ "--tooth=67",
+ descrs, 2);
+ }
+
+ /* Long option with argument (equal form) */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, '\0', "polish", true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "--polish=brick",
+ "--polish=brick",
+ descrs, 1);
+ }
+
+ /* Short option with argument (space form) */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, 'c', NULL, true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "-c chilly",
+ "-c chilly",
+ descrs, 2);
+ }
+
+ /* Short option with argument (glued form) */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, 'c', NULL, true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "-cchilly",
+ "-c chilly",
+ descrs, 1);
+ }
+
+ /* Short and long option (aliases) with argument (all forms) */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, 'd', "dry", true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "--dry=rate -dthing --dry street --dry=shape",
+ "--dry=rate --dry=thing --dry=street --dry=shape",
+ descrs, 5);
+ }
+
+ /* Many short options, last one with argument (glued form) */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, 'd', NULL, false },
+ { 0, 'e', NULL, false },
+ { 0, 'f', NULL, true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "-defmeow",
+ "-d -e -f meow",
+ descrs, 1);
+ }
+
+ /* Many options */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, 'd', NULL, false },
+ { 0, 'e', "east", true },
+ { 0, '\0', "mind", false },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "-d --mind -destart --mind --east cough -d --east=itch",
+ "-d --mind -d --east=start --mind --east=cough -d --east=itch",
+ descrs, 8);
+ }
+
+ /* Single non-option argument */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "kilojoule",
+ "kilojoule<0,0>",
+ descrs, 1);
+ }
+
+ /* Two non-option arguments */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "kilojoule mitaine",
+ "kilojoule<0,0> mitaine<1,1>",
+ descrs, 2);
+ }
+
+ /* Single non-option argument mixed with options */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, 'd', NULL, false },
+ { 0, '\0', "squeeze", true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "-d sprout yes --squeeze little bag -d",
+ "-d sprout<1,0> yes<2,1> --squeeze=little bag<5,2> -d",
+ descrs, 7);
+ }
+
+ /* Unknown short option (space form) */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, 'd', NULL, true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "-d salut -e -d meow",
+ "-d salut",
+ descrs, 2);
+ }
+
+ /* Unknown short option (glued form) */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, 'd', NULL, true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "-dsalut -e -d meow",
+ "-d salut",
+ descrs, 1);
+ }
+
+ /* Unknown long option (space form) */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, '\0', "sink", true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "--sink party --food --sink impulse",
+ "--sink=party",
+ descrs, 2);
+ }
+
+ /* Unknown long option (equal form) */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, '\0', "sink", true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "--sink=party --food --sink=impulse",
+ "--sink=party",
+ descrs, 1);
+ }
+
+ /* Unknown option before non-option argument */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, '\0', "thumb", true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "--thumb=party --food bateau --thumb waves",
+ "--thumb=party",
+ descrs, 1);
+ }
+
+ /* Unknown option after non-option argument */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, '\0', "thumb", true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "--thumb=party wound --food --thumb waves",
+ "--thumb=party wound<1,0>",
+ descrs, 2);
+ }
+
+ /* Valid `---opt` */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, '\0', "-fuel", true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "---fuel=three",
+ "---fuel=three",
+ descrs, 1);
+ }
+
+ /* Long option containing `=` in argument (equal form) */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, '\0', "zebra", true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "--zebra=three=yes",
+ "--zebra=three=yes",
+ descrs, 1);
+ }
+
+ /* Short option's argument starting with `-` (glued form) */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, 'z', NULL, true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "-z-will",
+ "-z -will",
+ descrs, 1);
+ }
+
+ /* Short option's argument starting with `-` (space form) */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, 'z', NULL, true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "-z -will",
+ "-z -will",
+ descrs, 2);
+ }
+
+ /* Long option's argument starting with `-` (space form) */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, '\0', "janine", true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "--janine -sutto",
+ "--janine=-sutto",
+ descrs, 2);
+ }
+
+ /* Long option's argument starting with `-` (equal form) */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, '\0', "janine", true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "--janine=-sutto",
+ "--janine=-sutto",
+ descrs, 1);
+ }
+
+ /* Long option's empty argument (equal form) */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, 'f', NULL, false },
+ { 0, '\0', "yeah", true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_succeed(
+ "-f --yeah= -f",
+ "-f --yeah= -f",
+ descrs, 3);
+ }
+}
+
+/*
+ * Tests that the command line `cmdline`, with non-quoted
+ * space-delimited arguments, once parsed given the option descriptors
+ * `descrs`, fails and gives the expected error `expected_error`.
+ */
+static
+void test_fail(const char *cmdline, const char *expected_error,
+ const struct bt_argpar_opt_descr *descrs)
+{
+ struct bt_argpar_parse_ret parse_ret;
+ gchar **argv = g_strsplit(cmdline, " ", 0);
+
+ parse_ret = bt_argpar_parse(g_strv_length(argv),
+ (const char * const *) argv, descrs, true);
+ ok(!parse_ret.items,
+ "bt_argpar_parse() fails for command line `%s`", cmdline);
+ ok(parse_ret.error,
+ "bt_argpar_parse() writes an error string for command line `%s`",
+ cmdline);
+ if (parse_ret.items) {
+ fail("bt_argpar_parse() writes the expected error string");
+ goto end;
+ }
+
+ ok(strcmp(expected_error, parse_ret.error->str) == 0,
+ "bt_argpar_parse() writes the expected error string "
+ "for command line `%s`", cmdline);
+ if (strcmp(expected_error, parse_ret.error->str) != 0) {
+ diag("Expected: `%s`", expected_error);
+ diag("Got: `%s`", parse_ret.error->str);
+ }
+
+end:
+ bt_argpar_parse_ret_fini(&parse_ret);
+ g_strfreev(argv);
+}
+
+static
+void fail_tests(void)
+{
+ /* Unknown long option */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, '\0', "thumb", true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_fail(
+ "--thumb=party --meow",
+ "While parsing argument #2 (`--meow`): Unknown option `--meow`",
+ descrs);
+ }
+
+ /* Unknown short option */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, '\0', "thumb", true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_fail(
+ "--thumb=party -x",
+ "While parsing argument #2 (`-x`): Unknown option `-x`",
+ descrs);
+ }
+
+ /* Missing long option argument */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, '\0', "thumb", true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_fail(
+ "--thumb",
+ "While parsing argument #1 (`--thumb`): Missing required argument for option `--thumb`",
+ descrs);
+ }
+
+ /* Missing short option argument */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, 'k', NULL, true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_fail(
+ "-k",
+ "While parsing argument #1 (`-k`): Missing required argument for option `-k`",
+ descrs);
+ }
+
+ /* Missing short option argument (multiple glued) */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, 'a', NULL, false },
+ { 0, 'b', NULL, false },
+ { 0, 'c', NULL, true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_fail(
+ "-abc",
+ "While parsing argument #1 (`-abc`): Missing required argument for option `-c`",
+ descrs);
+ }
+
+ /* Invalid `-` */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, 'a', NULL, false },
+ { 0, 'b', NULL, false },
+ { 0, 'c', NULL, true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_fail(
+ "-ab - -c",
+ "While parsing argument #2 (`-`): Invalid argument",
+ descrs);
+ }
+
+ /* Invalid `--` */
+ {
+ const struct bt_argpar_opt_descr descrs[] = {
+ { 0, 'a', NULL, false },
+ { 0, 'b', NULL, false },
+ { 0, 'c', NULL, true },
+ BT_ARGPAR_OPT_DESCR_SENTINEL
+ };
+
+ test_fail(
+ "-ab -- -c",
+ "While parsing argument #2 (`--`): Invalid argument",
+ descrs);
+ }
+}
+
+int main(void)
+{
+ plan_tests(129);
+ succeed_tests();
+ fail_tests();
+ return exit_status();
+}
projects / argpar.git / commitdiff
