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53 lines
1.8 KiB
C
53 lines
1.8 KiB
C
/* Diagnostics for GNU diffutils
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Copyright 2023-2026 Free Software Foundation, Inc.
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This file is part of GNU DIFF.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <config.h>
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#include "diagnose.h"
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#include "gettext.h"
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#include "progname.h"
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#include "quotearg.h"
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#include <error.h>
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/* In slot N return NAME, quoted for the shell if NAME has unusual characters.
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This is for messages that historically did not quote names,
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where we want to keep the message unchanged for compatibility reasons
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unless the unusual characters might cause confusion.
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Also, POSIX requires that names be unquoted in some cases,
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and we want to respect that for POSIX portable filenames. */
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char *
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squote (int n, char const *name)
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{
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return quotearg_n_style (n, shell_escape_quoting_style, name);
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}
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/* Issue help for the program. If REASON_MSGID, first issue a
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diagnostic with that reason and with optional operand OPERAND.
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Suggest --help regardless. */
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void
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try_help (char const *reason_msgid, char const *operand)
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{
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if (reason_msgid)
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error (0, 0, gettext (reason_msgid), operand);
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error (EXIT_TROUBLE, 0,
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gettext ("Try '%s --help' for more information."), program_name);
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}
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