| 1 | /* Test of quotearg family of functions.
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| 2 | Copyright (C) 2008-2021 Free Software Foundation, Inc.
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| 3 |
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| 4 | This program is free software; you can redistribute it and/or modify
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| 5 | it under the terms of the GNU General Public License as published by
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| 6 | the Free Software Foundation; either version 3, or (at your option)
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| 7 | any later version.
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| 8 |
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| 9 | This program is distributed in the hope that it will be useful,
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 12 | GNU General Public License for more details.
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| 13 |
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| 14 | You should have received a copy of the GNU General Public License
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| 15 | along with this program; if not, see <https://www.gnu.org/licenses/>. */
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| 16 |
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| 17 | /* Written by Eric Blake <[email protected]>, 2008. */
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| 18 |
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| 19 | #include <config.h>
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| 20 |
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| 21 | #include "quotearg.h"
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| 22 |
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| 23 | #include <ctype.h>
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| 24 | #include <stdbool.h>
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| 25 | #include <stdint.h>
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| 26 | #include <stdlib.h>
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| 27 | #include <string.h>
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| 28 |
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| 29 | #include "localcharset.h"
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| 30 | #include "macros.h"
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| 31 | #include "zerosize-ptr.h"
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| 32 |
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| 33 | #include "test-quotearg.h"
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| 34 |
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| 35 | static struct result_groups results_g[] = {
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| 36 | /* literal_quoting_style */
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| 37 | { { "", "\0""1\0", 3, "simple", " \t\n'\"\033?""?/\\", "a:b", "a\\b",
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| 38 | "a' b", LQ RQ, LQ RQ },
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| 39 | { "", "1", 1, "simple", " \t\n'\"\033?""?/\\", "a:b", "a\\b",
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| 40 | "a' b", LQ RQ, LQ RQ },
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| 41 | { "", "1", 1, "simple", " \t\n'\"\033?""?/\\", "a:b", "a\\b",
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| 42 | "a' b", LQ RQ, LQ RQ } },
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| 43 |
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| 44 | /* shell_quoting_style */
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| 45 | { { "''", "\0""1\0", 3, "simple", "' \t\n'\\''\"\033?""?/\\'", "a:b",
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| 46 | "'a\\b'", "\"a' b\"", LQ RQ, LQ RQ },
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| 47 | { "''", "1", 1, "simple", "' \t\n'\\''\"\033?""?/\\'", "a:b",
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| 48 | "'a\\b'", "\"a' b\"", LQ RQ, LQ RQ },
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| 49 | { "''", "1", 1, "simple", "' \t\n'\\''\"\033?""?/\\'", "'a:b'",
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| 50 | "'a\\b'", "\"a' b\"", LQ RQ, LQ RQ } },
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| 51 |
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| 52 | /* shell_always_quoting_style */
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| 53 | { { "''", "'\0""1\0'", 5, "'simple'", "' \t\n'\\''\"\033?""?/\\'", "'a:b'",
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| 54 | "'a\\b'", "\"a' b\"", "'" LQ RQ "'", "'" LQ RQ "'" },
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| 55 | { "''", "'1'", 3, "'simple'", "' \t\n'\\''\"\033?""?/\\'", "'a:b'",
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| 56 | "'a\\b'", "\"a' b\"", "'" LQ RQ "'", "'" LQ RQ "'" },
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| 57 | { "''", "'1'", 3, "'simple'", "' \t\n'\\''\"\033?""?/\\'", "'a:b'",
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| 58 | "'a\\b'", "\"a' b\"", "'" LQ RQ "'", "'" LQ RQ "'" } },
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| 59 |
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| 60 | /* shell_escape_quoting_style */
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| 61 | { { "''", "''$'\\0''1'$'\\0'", 15, "simple",
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| 62 | "' '$'\\t\\n'\\''\"'$'\\033''?""?/\\'", "a:b",
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| 63 | "'a\\b'", "\"a' b\"", "''$'" LQ_ENC RQ_ENC "'", LQ RQ },
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| 64 | { "''", "''$'\\0''1'$'\\0'", 15, "simple",
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| 65 | "' '$'\\t\\n'\\''\"'$'\\033''?""?/\\'", "a:b",
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| 66 | "'a\\b'", "\"a' b\"", "''$'" LQ_ENC RQ_ENC "'", LQ RQ },
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| 67 | { "''", "''$'\\0''1'$'\\0'", 15, "simple",
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| 68 | "' '$'\\t\\n'\\''\"'$'\\033''?""?/\\'", "'a:b'",
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| 69 | "'a\\b'", "\"a' b\"", "''$'" LQ_ENC RQ_ENC "'", LQ RQ } },
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| 70 |
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| 71 | /* shell_escape_always_quoting_style */
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| 72 | { { "''", "''$'\\0''1'$'\\0'", 15, "'simple'",
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| 73 | "' '$'\\t\\n'\\''\"'$'\\033''?""?/\\'", "'a:b'",
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| 74 | "'a\\b'", "\"a' b\"", "''$'" LQ_ENC RQ_ENC "'", "'" LQ RQ "'" },
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| 75 | { "''", "''$'\\0''1'$'\\0'", 15, "'simple'",
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| 76 | "' '$'\\t\\n'\\''\"'$'\\033''?""?/\\'", "'a:b'",
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| 77 | "'a\\b'", "\"a' b\"", "''$'" LQ_ENC RQ_ENC "'", "'" LQ RQ "'" },
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| 78 | { "''", "''$'\\0''1'$'\\0'", 15, "'simple'",
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| 79 | "' '$'\\t\\n'\\''\"'$'\\033''?""?/\\'", "'a:b'",
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| 80 | "'a\\b'", "\"a' b\"", "''$'" LQ_ENC RQ_ENC "'", "'" LQ RQ "'" } },
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| 81 |
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| 82 | /* c_quoting_style */
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| 83 | { { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
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| 84 | "\" \\t\\n'\\\"\\033?""?/\\\\\"", "\"a:b\"", "\"a\\\\b\"",
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| 85 | "\"a' b\"", "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" },
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| 86 | { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
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| 87 | "\" \\t\\n'\\\"\\033?""?/\\\\\"", "\"a:b\"", "\"a\\\\b\"",
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| 88 | "\"a' b\"", "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" },
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| 89 | { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
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| 90 | "\" \\t\\n'\\\"\\033?""?/\\\\\"", "\"a\\:b\"", "\"a\\\\b\"",
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| 91 | "\"a' b\"", "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" } },
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| 92 |
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| 93 | /* c_maybe_quoting_style */
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| 94 | { { "", "\"\\0001\\0\"", 9, "simple", "\" \\t\\n'\\\"\\033?""?/\\\\\"",
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| 95 | "a:b", "a\\b", "a' b", "\"" LQ_ENC RQ_ENC "\"", LQ RQ },
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| 96 | { "", "\"\\0001\\0\"", 9, "simple", "\" \\t\\n'\\\"\\033?""?/\\\\\"",
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| 97 | "a:b", "a\\b", "a' b", "\"" LQ_ENC RQ_ENC "\"", LQ RQ },
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| 98 | { "", "\"\\0001\\0\"", 9, "simple", "\" \\t\\n'\\\"\\033?""?/\\\\\"",
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| 99 | "\"a:b\"", "a\\b", "a' b", "\"" LQ_ENC RQ_ENC "\"", LQ RQ } },
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| 100 |
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| 101 | /* escape_quoting_style */
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| 102 | { { "", "\\0001\\0", 7, "simple", " \\t\\n'\"\\033?""?/\\\\", "a:b",
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| 103 | "a\\\\b", "a' b", LQ_ENC RQ_ENC, LQ RQ },
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| 104 | { "", "\\0001\\0", 7, "simple", " \\t\\n'\"\\033?""?/\\\\", "a:b",
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| 105 | "a\\\\b", "a' b", LQ_ENC RQ_ENC, LQ RQ },
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| 106 | { "", "\\0001\\0", 7, "simple", " \\t\\n'\"\\033?""?/\\\\", "a\\:b",
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| 107 | "a\\\\b", "a' b", LQ_ENC RQ_ENC, LQ RQ } },
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| 108 |
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| 109 | /* locale_quoting_style */
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| 110 | { { "''", "'\\0001\\0'", 9, "'simple'", "' \\t\\n\\'\"\\033?""?/\\\\'",
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| 111 | "'a:b'", "'a\\\\b'", "'a\\' b'", "'" LQ_ENC RQ_ENC "'", "'" LQ RQ "'" },
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| 112 | { "''", "'\\0001\\0'", 9, "'simple'", "' \\t\\n\\'\"\\033?""?/\\\\'",
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| 113 | "'a:b'", "'a\\\\b'", "'a\\' b'", "'" LQ_ENC RQ_ENC "'", "'" LQ RQ "'" },
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| 114 | { "''", "'\\0001\\0'", 9, "'simple'", "' \\t\\n\\'\"\\033?""?/\\\\'",
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| 115 | "'a\\:b'", "'a\\\\b'", "'a\\' b'",
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| 116 | "'" LQ_ENC RQ_ENC "'", "'" LQ RQ "'" } },
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| 117 |
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| 118 | /* clocale_quoting_style */
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| 119 | { { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
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| 120 | "\" \\t\\n'\\\"\\033?""?/\\\\\"", "\"a:b\"", "\"a\\\\b\"",
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| 121 | "\"a' b\"", "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" },
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| 122 | { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
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| 123 | "\" \\t\\n'\\\"\\033?""?/\\\\\"", "\"a:b\"", "\"a\\\\b\"",
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| 124 | "\"a' b\"", "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" },
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| 125 | { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
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| 126 | "\" \\t\\n'\\\"\\033?""?/\\\\\"", "\"a\\:b\"", "\"a\\\\b\"",
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| 127 | "\"a' b\"", "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" } }
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| 128 | };
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| 129 |
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| 130 | static struct result_groups flag_results[] = {
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| 131 | /* literal_quoting_style and QA_ELIDE_NULL_BYTES */
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| 132 | { { "", "1", 1, "simple", " \t\n'\"\033?""?/\\", "a:b", "a\\b", "a' b",
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| 133 | LQ RQ, LQ RQ },
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| 134 | { "", "1", 1, "simple", " \t\n'\"\033?""?/\\", "a:b", "a\\b", "a' b",
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| 135 | LQ RQ, LQ RQ },
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| 136 | { "", "1", 1, "simple", " \t\n'\"\033?""?/\\", "a:b", "a\\b", "a' b",
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| 137 | LQ RQ, LQ RQ } },
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| 138 |
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| 139 | /* c_quoting_style and QA_ELIDE_OUTER_QUOTES */
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| 140 | { { "", "\"\\0001\\0\"", 9, "simple", "\" \\t\\n'\\\"\\033?""?/\\\\\"",
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| 141 | "a:b", "a\\b", "a' b", "\"" LQ_ENC RQ_ENC "\"", LQ RQ },
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| 142 | { "", "\"\\0001\\0\"", 9, "simple", "\" \\t\\n'\\\"\\033?""?/\\\\\"",
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| 143 | "a:b", "a\\b", "a' b", "\"" LQ_ENC RQ_ENC "\"", LQ RQ },
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| 144 | { "", "\"\\0001\\0\"", 9, "simple", "\" \\t\\n'\\\"\\033?""?/\\\\\"",
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| 145 | "\"a:b\"", "a\\b", "a' b", "\"" LQ_ENC RQ_ENC "\"", LQ RQ } },
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| 146 |
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| 147 | /* c_quoting_style and QA_SPLIT_TRIGRAPHS */
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| 148 | { { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
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| 149 | "\" \\t\\n'\\\"\\033?\"\"?/\\\\\"", "\"a:b\"", "\"a\\\\b\"",
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| 150 | "\"a' b\"", "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" },
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| 151 | { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
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| 152 | "\" \\t\\n'\\\"\\033?\"\"?/\\\\\"", "\"a:b\"", "\"a\\\\b\"",
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| 153 | "\"a' b\"", "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" },
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| 154 | { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
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| 155 | "\" \\t\\n'\\\"\\033?\"\"?/\\\\\"", "\"a\\:b\"", "\"a\\\\b\"",
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| 156 | "\"a' b\"", "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" } }
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| 157 | };
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| 158 |
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| 159 | static char const *custom_quotes[][2] = {
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| 160 | { "", "" },
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| 161 | { "'", "'" },
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| 162 | { "(", ")" },
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| 163 | { ":", " " },
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| 164 | { " ", ":" },
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| 165 | { "# ", "\n" },
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| 166 | { "\"'", "'\"" }
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| 167 | };
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| 168 |
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| 169 | static struct result_groups custom_results[] = {
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| 170 | /* left_quote = right_quote = "" */
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| 171 | { { "", "\\0001\\0", 7, "simple",
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| 172 | " \\t\\n'\"\\033?""?/\\\\", "a:b", "a\\\\b",
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| 173 | "a' b", LQ_ENC RQ_ENC, LQ RQ },
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| 174 | { "", "\\0001\\0", 7, "simple",
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| 175 | " \\t\\n'\"\\033?""?/\\\\", "a:b", "a\\\\b",
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| 176 | "a' b", LQ_ENC RQ_ENC, LQ RQ },
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| 177 | { "", "\\0001\\0", 7, "simple",
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| 178 | " \\t\\n'\"\\033?""?/\\\\", "a\\:b", "a\\\\b",
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| 179 | "a' b", LQ_ENC RQ_ENC, LQ RQ } },
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| 180 |
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| 181 | /* left_quote = right_quote = "'" */
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| 182 | { { "''", "'\\0001\\0'", 9, "'simple'",
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| 183 | "' \\t\\n\\'\"\\033?""?/\\\\'", "'a:b'", "'a\\\\b'",
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| 184 | "'a\\' b'", "'" LQ_ENC RQ_ENC "'", "'" LQ RQ "'" },
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| 185 | { "''", "'\\0001\\0'", 9, "'simple'",
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| 186 | "' \\t\\n\\'\"\\033?""?/\\\\'", "'a:b'", "'a\\\\b'",
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| 187 | "'a\\' b'", "'" LQ_ENC RQ_ENC "'", "'" LQ RQ "'" },
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| 188 | { "''", "'\\0001\\0'", 9, "'simple'",
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| 189 | "' \\t\\n\\'\"\\033?""?/\\\\'", "'a\\:b'", "'a\\\\b'",
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| 190 | "'a\\' b'", "'" LQ_ENC RQ_ENC "'", "'" LQ RQ "'" } },
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| 191 |
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| 192 | /* left_quote = "(" and right_quote = ")" */
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| 193 | { { "()", "(\\0001\\0)", 9, "(simple)",
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| 194 | "( \\t\\n'\"\\033?""?/\\\\)", "(a:b)", "(a\\\\b)",
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| 195 | "(a' b)", "(" LQ_ENC RQ_ENC ")", "(" LQ RQ ")" },
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| 196 | { "()", "(\\0001\\0)", 9, "(simple)",
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| 197 | "( \\t\\n'\"\\033?""?/\\\\)", "(a:b)", "(a\\\\b)",
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| 198 | "(a' b)", "(" LQ_ENC RQ_ENC ")", "(" LQ RQ ")" },
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| 199 | { "()", "(\\0001\\0)", 9, "(simple)",
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| 200 | "( \\t\\n'\"\\033?""?/\\\\)", "(a\\:b)", "(a\\\\b)",
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| 201 | "(a' b)", "(" LQ_ENC RQ_ENC ")", "(" LQ RQ ")" } },
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| 202 |
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| 203 | /* left_quote = ":" and right_quote = " " */
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| 204 | { { ": ", ":\\0001\\0 ", 9, ":simple ",
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| 205 | ":\\ \\t\\n'\"\\033?""?/\\\\ ", ":a:b ", ":a\\\\b ",
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| 206 | ":a'\\ b ", ":" LQ_ENC RQ_ENC " ", ":" LQ RQ " " },
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| 207 | { ": ", ":\\0001\\0 ", 9, ":simple ",
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| 208 | ":\\ \\t\\n'\"\\033?""?/\\\\ ", ":a:b ", ":a\\\\b ",
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| 209 | ":a'\\ b ", ":" LQ_ENC RQ_ENC " ", ":" LQ RQ " " },
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| 210 | { ": ", ":\\0001\\0 ", 9, ":simple ",
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| 211 | ":\\ \\t\\n'\"\\033?""?/\\\\ ", ":a\\:b ", ":a\\\\b ",
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| 212 | ":a'\\ b ", ":" LQ_ENC RQ_ENC " ", ":" LQ RQ " " } },
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| 213 |
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| 214 | /* left_quote = " " and right_quote = ":" */
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| 215 | { { " :", " \\0001\\0:", 9, " simple:",
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| 216 | " \\t\\n'\"\\033?""?/\\\\:", " a\\:b:", " a\\\\b:",
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| 217 | " a' b:", " " LQ_ENC RQ_ENC ":", " " LQ RQ ":" },
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| 218 | { " :", " \\0001\\0:", 9, " simple:",
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| 219 | " \\t\\n'\"\\033?""?/\\\\:", " a\\:b:", " a\\\\b:",
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| 220 | " a' b:", " " LQ_ENC RQ_ENC ":", " " LQ RQ ":" },
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| 221 | { " :", " \\0001\\0:", 9, " simple:",
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| 222 | " \\t\\n'\"\\033?""?/\\\\:", " a\\:b:", " a\\\\b:",
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| 223 | " a' b:", " " LQ_ENC RQ_ENC ":", " " LQ RQ ":" } },
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| 224 |
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| 225 | /* left_quote = "# " and right_quote = "\n" */
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| 226 | { { "# \n", "# \\0001\\0\n", 10, "# simple\n",
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| 227 | "# \\t\\n'\"\\033?""?/\\\\\n", "# a:b\n", "# a\\\\b\n",
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| 228 | "# a' b\n", "# " LQ_ENC RQ_ENC "\n", "# " LQ RQ "\n" },
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| 229 | { "# \n", "# \\0001\\0\n", 10, "# simple\n",
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| 230 | "# \\t\\n'\"\\033?""?/\\\\\n", "# a:b\n", "# a\\\\b\n",
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| 231 | "# a' b\n", "# " LQ_ENC RQ_ENC "\n", "# " LQ RQ "\n" },
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| 232 | { "# \n", "# \\0001\\0\n", 10, "# simple\n",
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| 233 | "# \\t\\n'\"\\033?""?/\\\\\n", "# a\\:b\n", "# a\\\\b\n",
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| 234 | "# a' b\n", "# " LQ_ENC RQ_ENC "\n", "# " LQ RQ "\n" } },
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| 235 |
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| 236 | /* left_quote = "\"'" and right_quote = "'\"" */
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| 237 | { { "\"''\"", "\"'\\0001\\0'\"", 11, "\"'simple'\"",
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| 238 | "\"' \\t\\n\\'\"\\033?""?/\\\\'\"", "\"'a:b'\"", "\"'a\\\\b'\"",
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| 239 | "\"'a' b'\"", "\"'" LQ_ENC RQ_ENC "'\"", "\"'" LQ RQ "'\"" },
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| 240 | { "\"''\"", "\"'\\0001\\0'\"", 11, "\"'simple'\"",
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| 241 | "\"' \\t\\n\\'\"\\033?""?/\\\\'\"", "\"'a:b'\"", "\"'a\\\\b'\"",
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| 242 | "\"'a' b'\"", "\"'" LQ_ENC RQ_ENC "'\"", "\"'" LQ RQ "'\"" },
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| 243 | { "\"''\"", "\"'\\0001\\0'\"", 11, "\"'simple'\"",
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| 244 | "\"' \\t\\n\\'\"\\033?""?/\\\\'\"", "\"'a\\:b'\"", "\"'a\\\\b'\"",
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| 245 | "\"'a' b'\"", "\"'" LQ_ENC RQ_ENC "'\"", "\"'" LQ RQ "'\"" } }
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| 246 | };
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| 247 |
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| 248 | static char *
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| 249 | use_quote_double_quotes (const char *str, size_t *len)
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| 250 | {
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| 251 | char *p = *len == SIZE_MAX ? quotearg_char (str, '"')
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| 252 | : quotearg_char_mem (str, *len, '"');
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| 253 | *len = strlen (p);
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| 254 | return p;
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| 255 | }
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| 256 |
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| 257 | int
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| 258 | main (int argc _GL_UNUSED, char *argv[])
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| 259 | {
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| 260 | int i;
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| 261 | bool ascii_only = MB_CUR_MAX == 1 && !isprint ((unsigned char) LQ[0]);
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| 262 |
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| 263 | /* This part of the program is hard-wired to the C locale since it
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| 264 | does not call setlocale. However, according to POSIX, the use of
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| 265 | 8-bit bytes in a character context in the C locale gives
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| 266 | unspecified results (that is, the C locale charset is allowed to
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| 267 | be unibyte with 8-bit bytes rejected [ASCII], unibyte with 8-bit
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| 268 | bytes being characters [often ISO-8859-1], or multibyte [often
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| 269 | UTF-8]). We assume that the latter two cases will be
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| 270 | indistinguishable in this test - that is, the LQ and RQ sequences
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| 271 | will pass through unchanged in either type of charset. So when
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| 272 | testing for quoting of str7, use the ascii_only flag to decide
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| 273 | what to expect for the 8-bit data being quoted. */
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| 274 | ASSERT (!isprint ('\033'));
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| 275 | for (i = literal_quoting_style; i <= clocale_quoting_style; i++)
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| 276 | {
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| 277 | set_quoting_style (NULL, (enum quoting_style) i);
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| 278 | if (!(i == locale_quoting_style || i == clocale_quoting_style)
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| 279 | || (strcmp (locale_charset (), "ASCII") == 0
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| 280 | || strcmp (locale_charset (), "ANSI_X3.4-1968") == 0))
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| 281 | {
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| 282 | compare_strings (use_quotearg_buffer, &results_g[i].group1,
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| 283 | ascii_only);
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| 284 | compare_strings (use_quotearg, &results_g[i].group2,
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| 285 | ascii_only);
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| 286 | if (i == c_quoting_style)
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| 287 | compare_strings (use_quote_double_quotes, &results_g[i].group2,
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| 288 | ascii_only);
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| 289 | compare_strings (use_quotearg_colon, &results_g[i].group3,
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| 290 | ascii_only);
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| 291 | }
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| 292 | }
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| 293 |
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| 294 | set_quoting_style (NULL, literal_quoting_style);
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| 295 | ASSERT (set_quoting_flags (NULL, QA_ELIDE_NULL_BYTES) == 0);
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| 296 | compare_strings (use_quotearg_buffer, &flag_results[0].group1, ascii_only);
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| 297 | compare_strings (use_quotearg, &flag_results[0].group2, ascii_only);
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| 298 | compare_strings (use_quotearg_colon, &flag_results[0].group3, ascii_only);
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| 299 |
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| 300 | set_quoting_style (NULL, c_quoting_style);
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| 301 | ASSERT (set_quoting_flags (NULL, QA_ELIDE_OUTER_QUOTES)
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| 302 | == QA_ELIDE_NULL_BYTES);
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| 303 | compare_strings (use_quotearg_buffer, &flag_results[1].group1, ascii_only);
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| 304 | compare_strings (use_quotearg, &flag_results[1].group2, ascii_only);
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| 305 | compare_strings (use_quote_double_quotes, &flag_results[1].group2,
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| 306 | ascii_only);
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| 307 | compare_strings (use_quotearg_colon, &flag_results[1].group3, ascii_only);
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| 308 |
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| 309 | ASSERT (set_quoting_flags (NULL, QA_SPLIT_TRIGRAPHS)
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| 310 | == QA_ELIDE_OUTER_QUOTES);
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| 311 | compare_strings (use_quotearg_buffer, &flag_results[2].group1, ascii_only);
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| 312 | compare_strings (use_quotearg, &flag_results[2].group2, ascii_only);
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| 313 | compare_strings (use_quote_double_quotes, &flag_results[2].group2,
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| 314 | ascii_only);
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| 315 | compare_strings (use_quotearg_colon, &flag_results[2].group3, ascii_only);
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| 316 |
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| 317 | ASSERT (set_quoting_flags (NULL, 0) == QA_SPLIT_TRIGRAPHS);
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| 318 |
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| 319 | for (i = 0; i < sizeof custom_quotes / sizeof *custom_quotes; ++i)
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| 320 | {
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| 321 | set_custom_quoting (NULL,
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| 322 | custom_quotes[i][0], custom_quotes[i][1]);
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| 323 | compare_strings (use_quotearg_buffer, &custom_results[i].group1,
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| 324 | ascii_only);
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| 325 | compare_strings (use_quotearg, &custom_results[i].group2, ascii_only);
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| 326 | compare_strings (use_quotearg_colon, &custom_results[i].group3,
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| 327 | ascii_only);
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| 328 | }
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| 329 |
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| 330 | {
|
|---|
| 331 | /* Trigger the bug whereby quotearg_buffer would read beyond the NUL
|
|---|
| 332 | that defines the end of the string being quoted. Use an input
|
|---|
| 333 | string whose NUL is the last byte before an unreadable page. */
|
|---|
| 334 | char *z = zerosize_ptr ();
|
|---|
| 335 |
|
|---|
| 336 | if (z)
|
|---|
| 337 | {
|
|---|
| 338 | size_t q_len = 1024;
|
|---|
| 339 | char *q = malloc (q_len + 1);
|
|---|
| 340 | char buf[10];
|
|---|
| 341 | memset (q, 'Q', q_len);
|
|---|
| 342 | q[q_len] = 0;
|
|---|
| 343 |
|
|---|
| 344 | /* Z points to the boundary between a readable/writable page
|
|---|
| 345 | and one that is neither readable nor writable. Position
|
|---|
| 346 | our string so its NUL is at the end of the writable one. */
|
|---|
| 347 | char const *str = "____";
|
|---|
| 348 | size_t s_len = strlen (str);
|
|---|
| 349 | z -= s_len + 1;
|
|---|
| 350 | memcpy (z, str, s_len + 1);
|
|---|
| 351 |
|
|---|
| 352 | set_custom_quoting (NULL, q, q);
|
|---|
| 353 | /* Whether this actually triggers a SEGV depends on the
|
|---|
| 354 | implementation of memcmp: whether it compares only byte-at-
|
|---|
| 355 | a-time, and from left to right (no SEGV) or some other way. */
|
|---|
| 356 | size_t n = quotearg_buffer (buf, sizeof buf, z, SIZE_MAX, NULL);
|
|---|
| 357 | ASSERT (n == s_len + 2 * q_len);
|
|---|
| 358 | ASSERT (memcmp (buf, q, sizeof buf) == 0);
|
|---|
| 359 | free (q);
|
|---|
| 360 | }
|
|---|
| 361 | }
|
|---|
| 362 |
|
|---|
| 363 | quotearg_free ();
|
|---|
| 364 |
|
|---|
| 365 | return 0;
|
|---|
| 366 | }
|
|---|
