/* Hierarchial argument parsing help output
- Copyright (C) 1995-2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 1995-2003, 2004, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Written by Miles Bader <miles@gnu.ai.mit.edu>.
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
#ifndef _GNU_SOURCE
# define _GNU_SOURCE 1
#endif
#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-/* AIX requires this to be the first thing in the file. */
-#ifndef __GNUC__
-# if HAVE_ALLOCA_H || defined _LIBC
-# include <alloca.h>
-# else
-# ifdef _AIX
-#pragma alloca
-# else
-# ifndef alloca /* predefined by HP cc +Olibcalls */
-char *alloca ();
-# endif
-# endif
-# endif
+# include <config.h>
#endif
+#include <alloca.h>
+#include <errno.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
# include <wchar.h>
#endif
-#ifndef _
-/* This is for other GNU distributions with internationalized messages. */
-# if defined HAVE_LIBINTL_H || defined _LIBC
-# include <libintl.h>
-# ifdef _LIBC
-# undef dgettext
-# define dgettext(domain, msgid) \
- INTUSE(__dcgettext) (domain, msgid, LC_MESSAGES)
-# endif
-# else
-# define dgettext(domain, msgid) (msgid)
-# endif
-#endif
-
-#ifndef _LIBC
-# if HAVE_STRERROR_R
-# if !HAVE_DECL_STRERROR_R
-char *strerror_r (int errnum, char *buf, size_t buflen);
-# endif
-# else
-# if !HAVE_DECL_STRERROR
-char *strerror (int errnum);
-# endif
-# endif
+#ifdef _LIBC
+# include <libintl.h>
+# undef dgettext
+# define dgettext(domain, msgid) \
+ INTUSE(__dcgettext) (domain, msgid, LC_MESSAGES)
+#else
+# include "gettext.h"
#endif
#include "argp.h"
int dup_args_note;
/* Various output columns. */
- int short_opt_col;
- int long_opt_col;
- int doc_opt_col;
- int opt_doc_col;
- int header_col;
- int usage_indent;
- int rmargin;
-
- int valid; /* True when the values in here are valid. */
+ int short_opt_col; /* column in which short options start */
+ int long_opt_col; /* column in which long options start */
+ int doc_opt_col; /* column in which doc options start */
+ int opt_doc_col; /* column in which option text starts */
+ int header_col; /* column in which group headers are printed */
+ int usage_indent; /* indentation of wrapped usage lines */
+ int rmargin; /* right margin used for wrapping */
+
+ int valid; /* True when the values in here are valid. */
};
/* This is a global variable, as user options are only ever read once. */
{ 0 }
};
-/* Read user options from the environment, and fill in UPARAMS appropiately. */
+static void
+validate_uparams (const struct argp_state *state, struct uparams *upptr)
+{
+ const struct uparam_name *up;
+
+ for (up = uparam_names; up->name; up++)
+ {
+ if (up->is_bool
+ || up->uparams_offs == offsetof (struct uparams, rmargin))
+ continue;
+ if (*(int *)((char *)upptr + up->uparams_offs) >= upptr->rmargin)
+ {
+ __argp_failure (state, 0, 0,
+ dgettext (state->root_argp->argp_domain,
+ "\
+ARGP_HELP_FMT: %s value is less than or equal to %s"),
+ "rmargin", up->name);
+ return;
+ }
+ }
+ uparams = *upptr;
+ uparams.valid = 1;
+}
+
+/* Read user options from the environment, and fill in UPARAMS appropiately. */
static void
fill_in_uparams (const struct argp_state *state)
{
const char *var = getenv ("ARGP_HELP_FMT");
-
+ struct uparams new_params = uparams;
+
#define SKIPWS(p) do { while (isspace (*p)) p++; } while (0);
if (var)
- /* Parse var. */
- while (*var)
- {
- SKIPWS (var);
-
- if (isalpha (*var))
- {
- size_t var_len;
- const struct uparam_name *un;
- int unspec = 0, val = 0;
- const char *arg = var;
-
- while (isalnum (*arg) || *arg == '-' || *arg == '_')
- arg++;
- var_len = arg - var;
-
- SKIPWS (arg);
+ {
+ /* Parse var. */
+ while (*var)
+ {
+ SKIPWS (var);
+
+ if (isalpha (*var))
+ {
+ size_t var_len;
+ const struct uparam_name *un;
+ int unspec = 0, val = 0;
+ const char *arg = var;
- if (*arg == '\0' || *arg == ',')
- unspec = 1;
- else if (*arg == '=')
- {
+ while (isalnum (*arg) || *arg == '-' || *arg == '_')
arg++;
- SKIPWS (arg);
- }
-
- if (unspec)
- {
- if (var[0] == 'n' && var[1] == 'o' && var[2] == '-')
- {
- val = 0;
- var += 3;
- var_len -= 3;
- }
- else
- val = 1;
- }
- else if (isdigit (*arg))
- {
- val = atoi (arg);
- while (isdigit (*arg))
+ var_len = arg - var;
+
+ SKIPWS (arg);
+
+ if (*arg == '\0' || *arg == ',')
+ unspec = 1;
+ else if (*arg == '=')
+ {
arg++;
- SKIPWS (arg);
- }
-
- for (un = uparam_names; un->name; un++)
- if (strlen (un->name) == var_len
- && strncmp (var, un->name, var_len) == 0)
+ SKIPWS (arg);
+ }
+
+ if (unspec)
{
- if (unspec && !un->is_bool)
- __argp_failure (state, 0, 0,
- dgettext (state->root_argp->argp_domain, "\
-%.*s: ARGP_HELP_FMT parameter requires a value"),
- (int) var_len, var);
+ if (var[0] == 'n' && var[1] == 'o' && var[2] == '-')
+ {
+ val = 0;
+ var += 3;
+ var_len -= 3;
+ }
else
- *(int *)((char *)&uparams + un->uparams_offs) = val;
- break;
+ val = 1;
}
- if (! un->name)
- __argp_failure (state, 0, 0,
- dgettext (state->root_argp->argp_domain, "\
+ else if (isdigit (*arg))
+ {
+ val = atoi (arg);
+ while (isdigit (*arg))
+ arg++;
+ SKIPWS (arg);
+ }
+
+ for (un = uparam_names; un->name; un++)
+ if (strlen (un->name) == var_len
+ && strncmp (var, un->name, var_len) == 0)
+ {
+ if (unspec && !un->is_bool)
+ __argp_failure (state, 0, 0,
+ dgettext (state->root_argp->argp_domain,
+ "\
+%.*s: ARGP_HELP_FMT parameter requires a value"),
+ (int) var_len, var);
+ else if (val < 0)
+ __argp_failure (state, 0, 0,
+ dgettext (state->root_argp->argp_domain,
+ "\
+%.*s: ARGP_HELP_FMT parameter must be positive"),
+ (int) var_len, var);
+ else
+ *(int *)((char *)&new_params + un->uparams_offs) = val;
+ break;
+ }
+ if (! un->name)
+ __argp_failure (state, 0, 0,
+ dgettext (state->root_argp->argp_domain, "\
%.*s: Unknown ARGP_HELP_FMT parameter"),
- (int) var_len, var);
+ (int) var_len, var);
- var = arg;
- if (*var == ',')
- var++;
- }
- else if (*var)
- {
- __argp_failure (state, 0, 0,
- dgettext (state->root_argp->argp_domain,
- "Garbage in ARGP_HELP_FMT: %s"), var);
- break;
- }
- }
+ var = arg;
+ if (*var == ',')
+ var++;
+ }
+ else if (*var)
+ {
+ __argp_failure (state, 0, 0,
+ dgettext (state->root_argp->argp_domain,
+ "Garbage in ARGP_HELP_FMT: %s"), var);
+ break;
+ }
+ }
+ validate_uparams (state, &new_params);
+ }
}
\f
/* Returns true if OPT hasn't been marked invisible. Visibility only affects
/* Returns true if OPT is an documentation-only entry. */
#define odoc(opt) ((opt)->flags & OPTION_DOC)
+/* Returns true if OPT should not be translated */
+#define onotrans(opt) ((opt)->flags & OPTION_NO_TRANS)
+
/* Returns true if OPT is the end-of-list marker for a list of options. */
#define oend(opt) __option_is_end (opt)
hol->short_options = malloc (num_short_options + 1);
assert (hol->entries && hol->short_options);
-#if SIZE_MAX <= UINT_MAX
- assert (hol->num_entries <= SIZE_MAX / sizeof (struct hol_entry));
-#endif
+ if (SIZE_MAX <= UINT_MAX)
+ assert (hol->num_entries <= SIZE_MAX / sizeof (struct hol_entry));
/* Fill in the entries. */
so = hol->short_options;
canon_doc_option (const char **name)
{
int non_opt;
- /* Skip initial whitespace. */
- while (isspace (**name))
- (*name)++;
- /* Decide whether this looks like an option (leading `-') or not. */
- non_opt = (**name != '-');
- /* Skip until part of name used for sorting. */
- while (**name && !isalnum (**name))
- (*name)++;
+
+ if (!*name)
+ non_opt = 1;
+ else
+ {
+ /* Skip initial whitespace. */
+ while (isspace (**name))
+ (*name)++;
+ /* Decide whether this looks like an option (leading `-') or not. */
+ non_opt = (**name != '-');
+ /* Skip until part of name used for sorting. */
+ while (**name && !isalnum (**name))
+ (*name)++;
+ }
return non_opt;
}
malloc (hol_so_len + strlen (more->short_options) + 1);
assert (entries && short_options);
-#if SIZE_MAX <= UINT_MAX
- assert (num_entries <= SIZE_MAX / sizeof (struct hol_entry));
-#endif
+ if (SIZE_MAX <= UINT_MAX)
+ assert (num_entries <= SIZE_MAX / sizeof (struct hol_entry));
__mempcpy (__mempcpy (entries, hol->entries,
hol->num_entries * sizeof (struct hol_entry)),
int old_wm = __argp_fmtstream_wmargin (stream);
/* PEST is a state block holding some of our variables that we'd like to
share with helper functions. */
- struct pentry_state pest = { entry, stream, hhstate, 1, state };
+ struct pentry_state pest;
+
+ pest.entry = entry;
+ pest.stream = stream;
+ pest.hhstate = hhstate;
+ pest.first = 1;
+ pest.state = state;
if (! odoc (real))
for (opt = real, num = entry->num; num > 0; opt++, num--)
{
__argp_fmtstream_set_wmargin (stream, uparams.doc_opt_col);
for (opt = real, num = entry->num; num > 0; opt++, num--)
- if (opt->name && ovisible (opt))
+ if (opt->name && *opt->name && ovisible (opt))
{
comma (uparams.doc_opt_col, &pest);
- /* Calling gettext here isn't quite right, since sorting will
+ /* Calling dgettext here isn't quite right, since sorting will
have been done on the original; but documentation options
should be pretty rare anyway... */
__argp_fmtstream_puts (stream,
+ onotrans (opt) ?
+ opt->name :
dgettext (state->root_argp->argp_domain,
opt->name));
}
if (! arg)
arg = real->arg;
- if (! (flags & OPTION_NO_USAGE))
+ if (! (flags & OPTION_NO_USAGE) && !odoc (opt))
{
if (arg)
{
void __argp_help (const struct argp *argp, FILE *stream,
unsigned flags, char *name)
{
- _help (argp, 0, stream, flags, name);
+ struct argp_state state;
+ memset (&state, 0, sizeof state);
+ state.root_argp = argp;
+ _help (argp, &state, stream, flags, name);
}
#ifdef weak_alias
weak_alias (__argp_help, argp_help)
#endif
-#ifndef _LIBC
-char *__argp_basename (char *name)
-{
- char *short_name = strrchr (name, '/');
- return short_name ? short_name + 1 : name;
-}
-
+#if ! (defined _LIBC || HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME)
char *
__argp_short_program_name (void)
{
-# if HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME
- return program_invocation_short_name;
-# elif HAVE_DECL_PROGRAM_INVOCATION_NAME
- return __argp_basename (program_invocation_name);
+# if HAVE_DECL_PROGRAM_INVOCATION_NAME
+ return __argp_base_name (program_invocation_name);
# else
/* FIXME: What now? Miles suggests that it is better to use NULL,
but currently the value is passed on directly to fputs_unlocked,
{
char *buf;
- __asprintf (&buf, fmt, ap);
+ if (__asprintf (&buf, fmt, ap) < 0)
+ buf = NULL;
__fwprintf (stream, L"%s: %s\n",
state ? state->name : __argp_short_program_name (),
{
char *buf;
- __asprintf (&buf, fmt, ap);
+ if (__asprintf (&buf, fmt, ap) < 0)
+ buf = NULL;
__fwprintf (stream, L": %s", buf);
else
#endif
{
+ char const *s = NULL;
putc_unlocked (':', stream);
putc_unlocked (' ', stream);
-#if defined _LIBC || defined HAVE_STRERROR_R
- fputs (__strerror_r (errnum, buf, sizeof (buf)), stream);
-#else
- fputs (strerror (errnum), stream);
+#if _LIBC || (HAVE_DECL_STRERROR_R && STRERROR_R_CHAR_P)
+ s = __strerror_r (errnum, buf, sizeof buf);
+#elif HAVE_DECL_STRERROR_R
+ if (__strerror_r (errnum, buf, sizeof buf) == 0)
+ s = buf;
+#endif
+#if !_LIBC
+ if (! s && ! (s = strerror (errnum)))
+ s = dgettext (state->root_argp->argp_domain,
+ "Unknown system error");
#endif
+ fputs (s, stream);
}
}
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