Import argp-test.c from glibc 2.33.
This change assumes that asprintf is always available.
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1 changed files with 31 additions and 73 deletions
104
argp-test.c
104
argp-test.c
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@ -1,22 +1,21 @@
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/* Test program for argp argument parser
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Copyright (C) 1997 Free Software Foundation, Inc.
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Copyright (C) 1997-2021 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Written by Miles Bader <miles@gnu.ai.mit.edu>.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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Lesser General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _GNU_SOURCE
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# define _GNU_SOURCE 1
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@ -29,66 +28,28 @@
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#include <stdlib.h>
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#include <time.h>
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#include <string.h>
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#include <stdio.h>
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#include "argp.h"
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#if !HAVE_ASPRINTF
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#include <stdarg.h>
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static int
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asprintf (char **result, const char *format, ...)
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{
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size_t size;
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char *p;
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for (size = 200, p = NULL;; size *= 2)
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{
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va_list args;
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int written;
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p = realloc(p, size + 1);
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if (!p)
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{
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fprintf(stderr, "Virtual memory exhausted.\n");
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abort();
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}
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p[size] = '\0';
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va_start(args, format);
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written = vsnprintf(p, size, format, args);
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va_end(args);
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if (written >= 0)
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{
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*result = p;
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return written;
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}
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}
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}
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#endif /* !HAVE_ASPRINTF */
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#include <argp.h>
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const char *argp_program_version = "argp-test 1.0";
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struct argp_option sub_options[] =
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{
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{"subopt1", 's', 0, 0, "Nested option 1", 0},
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{"subopt2", 'S', 0, 0, "Nested option 2", 0},
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{"subopt1", 's', 0, 0, "Nested option 1"},
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{"subopt2", 'S', 0, 0, "Nested option 2"},
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{ 0, 0, 0, 0, "Some more nested options:", 10},
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{"subopt3", 'p', 0, 0, "Nested option 3", 0},
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{"subopt3", 'p', 0, 0, "Nested option 3"},
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{"subopt4", 'q', 0, 0, "Nested option 4", 1},
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{0, 0, 0, 0, 0, 0}
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{0}
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};
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static const char sub_args_doc[] = "STRING...\n-";
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static const char sub_doc[] = "\vThis is the doc string from the sub-arg-parser.";
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static error_t
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sub_parse_opt (int key, char *arg, struct argp_state *state UNUSED)
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sub_parse_opt (int key, char *arg, struct argp_state *state)
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{
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switch (key)
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{
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}
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static char *
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sub_help_filter (int key, const char *text, void *input UNUSED)
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sub_help_filter (int key, const char *text, void *input)
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{
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if (key == ARGP_KEY_HELP_EXTRA)
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return strdup ("This is some extra text from the sub parser (note that it \
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@ -120,7 +81,7 @@ is preceded by a blank line).");
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}
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static struct argp sub_argp = {
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sub_options, sub_parse_opt, sub_args_doc, sub_doc, 0, sub_help_filter, 0
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sub_options, sub_parse_opt, sub_args_doc, sub_doc, 0, sub_help_filter
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};
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/* Structure used to communicate with the parsing functions. */
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struct argp_option options[] =
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{
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{"pid", 'p', "PID", 0, "List the process PID", 0},
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{"pgrp", OPT_PGRP,"PGRP",0, "List processes in the process group PGRP", 0},
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{"no-parent", 'P', 0, 0, "Include processes without parents", 0},
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{0, 'x', 0, OPTION_ALIAS, NULL, 0},
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{"pid", 'p', "PID", 0, "List the process PID"},
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{"pgrp", OPT_PGRP,"PGRP",0, "List processes in the process group PGRP"},
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{"no-parent", 'P', 0, 0, "Include processes without parents"},
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{0, 'x', 0, OPTION_ALIAS},
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{"all-fields",'Q', 0, 0, "Don't elide unusable fields (normally"
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" if there's some reason ps can't"
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" print a field for any process, it's"
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" removed from the output entirely)", 0},
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{"reverse", 'r', 0, 0, "Reverse the order of any sort", 0},
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{"gratuitously-long-reverse-option", 0, 0, OPTION_ALIAS, NULL, 0},
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" removed from the output entirely)" },
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{"reverse", 'r', 0, 0, "Reverse the order of any sort"},
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{"gratuitously-long-reverse-option", 0, 0, OPTION_ALIAS},
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{"session", OPT_SESS,"SID", OPTION_ARG_OPTIONAL,
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"Add the processes from the session"
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" SID (which defaults to the sid of"
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" the current process)", 0},
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" the current process)" },
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{0,0,0,0, "Here are some more options:", 0},
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{"foonly", 'f', "ZOT", OPTION_ARG_OPTIONAL, "Glork a foonly", 0},
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{"zaza", 'z', 0, 0, "Snit a zar", 0},
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{0,0,0,0, "Here are some more options:"},
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{"foonly", 'f', "ZOT", OPTION_ARG_OPTIONAL, "Glork a foonly"},
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{"zaza", 'z', 0, 0, "Snit a zar"},
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{0, 0, 0, 0, 0, 0}
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{0}
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};
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static const char args_doc[] = "STRING";
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static void
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popt (int key, char *arg)
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{
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char buf[10];
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char buf[12];
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if (isprint (key))
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sprintf (buf, "%c", key);
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else
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return new_text;
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}
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static struct argp_child argp_children[] = {
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{ &sub_argp, 0, 0, 0 }, { 0, 0, 0, 0 }
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};
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static struct argp_child argp_children[] = { { &sub_argp }, { 0 } };
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static struct argp argp = {
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options, parse_opt, args_doc, doc, argp_children, help_filter, 0
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options, parse_opt, args_doc, doc, argp_children, help_filter
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};
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int
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