Mercurial > gnulib
annotate lib/system-quote.h @ 40231:9b3c79fdfe0b
strtod: fix clash with strtold
Problem reported for RHEL 5 by Jesse Caldwell (Bug#34817).
* lib/strtod.c (compute_minus_zero, minus_zero):
Simplify by remving the macro / external variable,
and having just a function. User changed. This avoids
the need for an external variable that might clash.
| author | Paul Eggert <eggert@cs.ucla.edu> |
|---|---|
| date | Mon, 11 Mar 2019 16:40:29 -0700 |
| parents | b06060465f09 |
| children |
| rev | line source |
|---|---|
| 16841 | 1 /* Quoting for a system command. |
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40057
b06060465f09
maint: Run 'make update-copyright'
Paul Eggert <eggert@cs.ucla.edu>
parents:
19595
diff
changeset
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2 Copyright (C) 2001-2019 Free Software Foundation, Inc. |
| 16841 | 3 Written by Bruno Haible <bruno@clisp.org>, 2012. |
| 4 | |
| 5 This program is free software: you can redistribute it and/or modify | |
| 6 it under the terms of the GNU General Public License as published by | |
| 7 the Free Software Foundation; either version 3 of the License, or | |
| 8 (at your option) any later version. | |
| 9 | |
| 10 This program is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 GNU General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU General Public License | |
| 19190 | 16 along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
| 16841 | 17 |
| 18 #ifndef _SYSTEM_QUOTE_H | |
| 19 #define _SYSTEM_QUOTE_H | |
| 20 | |
| 21 /* When passing a command the system's command interpreter, we must quote the | |
| 22 program name and arguments, since | |
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16848
ae444fc80840
sh-quote, system-quote: Add comments about wildcards.
Bruno Haible <bruno@clisp.org>
parents:
16844
diff
changeset
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23 - Unix shells interpret characters like " ", "'", "<", ">", "$", '*', '?' |
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ae444fc80840
sh-quote, system-quote: Add comments about wildcards.
Bruno Haible <bruno@clisp.org>
parents:
16844
diff
changeset
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24 etc. in a special way, |
| 16841 | 25 - Windows CreateProcess() interprets characters like ' ', '\t', '\\', '"' |
| 26 etc. (but not '<' and '>') in a special way, | |
| 27 - Windows cmd.exe also interprets characters like '<', '>', '&', '%', etc. | |
| 28 in a special way. Note that it is impossible to pass arguments that | |
| 29 contain newlines or carriage return characters to programs through | |
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16848
ae444fc80840
sh-quote, system-quote: Add comments about wildcards.
Bruno Haible <bruno@clisp.org>
parents:
16844
diff
changeset
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30 cmd.exe. |
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ae444fc80840
sh-quote, system-quote: Add comments about wildcards.
Bruno Haible <bruno@clisp.org>
parents:
16844
diff
changeset
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31 - Windows programs usually perform wildcard expansion when they receive |
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16849
1aa668619908
system-quote: Add more comments.
Bruno Haible <bruno@clisp.org>
parents:
16848
diff
changeset
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32 arguments that contain unquoted '*', '?' characters. |
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1aa668619908
system-quote: Add more comments.
Bruno Haible <bruno@clisp.org>
parents:
16848
diff
changeset
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33 |
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1aa668619908
system-quote: Add more comments.
Bruno Haible <bruno@clisp.org>
parents:
16848
diff
changeset
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34 With this module, you can build a command that will invoke a program with |
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1aa668619908
system-quote: Add more comments.
Bruno Haible <bruno@clisp.org>
parents:
16848
diff
changeset
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35 specific strings as arguments. |
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1aa668619908
system-quote: Add more comments.
Bruno Haible <bruno@clisp.org>
parents:
16848
diff
changeset
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36 |
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1aa668619908
system-quote: Add more comments.
Bruno Haible <bruno@clisp.org>
parents:
16848
diff
changeset
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37 Note: If you want wildcard expansion to happen, you have to first do wildcard |
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1aa668619908
system-quote: Add more comments.
Bruno Haible <bruno@clisp.org>
parents:
16848
diff
changeset
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38 expansion through the 'glob' module, then quote the resulting strings through |
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1aa668619908
system-quote: Add more comments.
Bruno Haible <bruno@clisp.org>
parents:
16848
diff
changeset
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39 this module, and then invoke the system's command interpreter. |
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1aa668619908
system-quote: Add more comments.
Bruno Haible <bruno@clisp.org>
parents:
16848
diff
changeset
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40 |
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1aa668619908
system-quote: Add more comments.
Bruno Haible <bruno@clisp.org>
parents:
16848
diff
changeset
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41 Limitations: |
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1aa668619908
system-quote: Add more comments.
Bruno Haible <bruno@clisp.org>
parents:
16848
diff
changeset
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42 - When invoking native Windows programs on Windows Vista or newer, |
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1aa668619908
system-quote: Add more comments.
Bruno Haible <bruno@clisp.org>
parents:
16848
diff
changeset
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43 wildcard expansion will occur in the invoked program nevertheless. |
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1aa668619908
system-quote: Add more comments.
Bruno Haible <bruno@clisp.org>
parents:
16848
diff
changeset
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44 - On native Windows, for SCI_SYSTEM and SCI_WINDOWS_CMD, newlines and |
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1aa668619908
system-quote: Add more comments.
Bruno Haible <bruno@clisp.org>
parents:
16848
diff
changeset
|
45 carriage return characters are not supported. Their undesired effect |
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1aa668619908
system-quote: Add more comments.
Bruno Haible <bruno@clisp.org>
parents:
16848
diff
changeset
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46 is to truncate the entire command line. |
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1aa668619908
system-quote: Add more comments.
Bruno Haible <bruno@clisp.org>
parents:
16848
diff
changeset
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47 */ |
| 16841 | 48 |
| 49 #include <stddef.h> | |
| 50 | |
| 51 #ifdef __cplusplus | |
| 52 extern "C" { | |
| 53 #endif | |
| 54 | |
| 55 /* Identifier for the kind of interpreter of the command. */ | |
| 56 enum system_command_interpreter | |
| 57 { | |
| 58 /* The interpreter used by the system() and popen() functions. | |
| 59 This is equivalent to SCI_POSIX_SH on Unix platforms and | |
| 60 SCI_WINDOWS_CMD on native Windows platforms. */ | |
| 61 SCI_SYSTEM = 0 | |
| 62 /* The POSIX /bin/sh. */ | |
| 63 , SCI_POSIX_SH = 1 | |
|
19595
beb2ad957aca
Simplify code. Drop support for Borland C++ on Windows.
Bruno Haible <bruno@clisp.org>
parents:
19484
diff
changeset
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64 #if defined _WIN32 && ! defined __CYGWIN__ |
| 16841 | 65 /* The native Windows CreateProcess() function. */ |
| 66 , SCI_WINDOWS_CREATEPROCESS = 2 | |
| 67 /* The native Windows cmd.exe interpreter. */ | |
| 68 , SCI_WINDOWS_CMD = 3 | |
| 69 #endif | |
| 70 }; | |
| 71 | |
| 72 /* Returns the number of bytes needed for the quoted string. */ | |
| 73 extern size_t | |
| 74 system_quote_length (enum system_command_interpreter interpreter, | |
| 75 const char *string); | |
| 76 | |
| 77 /* Copies the quoted string to p and returns the incremented p. | |
| 16844 | 78 There must be room for system_quote_length (string) + 1 bytes at p. */ |
| 16841 | 79 extern char * |
| 80 system_quote_copy (char *p, | |
| 81 enum system_command_interpreter interpreter, | |
| 82 const char *string); | |
| 83 | |
| 84 /* Returns the freshly allocated quoted string. */ | |
| 85 extern char * | |
| 86 system_quote (enum system_command_interpreter interpreter, | |
| 87 const char *string); | |
| 88 | |
| 89 /* Returns a freshly allocated string containing all argument strings, quoted, | |
| 90 separated through spaces. */ | |
| 91 extern char * | |
| 92 system_quote_argv (enum system_command_interpreter interpreter, | |
| 93 char * const *argv); | |
| 94 | |
| 95 #ifdef __cplusplus | |
| 96 } | |
| 97 #endif | |
| 98 | |
| 99 #endif /* _SYSTEM_QUOTE_H */ |