# include <stddef.h>
-/* Basic quoting styles. */
+/* Basic quoting styles. For each style, an example is given on the
+ input strings "simple", "\0 \t\n'\"\033?""?/\\", and "a:b", using
+ quotearg_buffer, quotearg_mem, and quotearg_colon_mem with that
+ style and the default flags and quoted characters. Note that the
+ examples are shown here as valid C strings rather than what
+ displays on a terminal (with "??/" as a trigraph for "\\"). */
enum quoting_style
{
/* Output names as-is (ls --quoting-style=literal). Can result in
embedded null bytes if QA_ELIDE_NULL_BYTES is not in
- effect. */
+ effect.
+
+ quotearg_buffer:
+ "simple", "\0 \t\n'\"\033??/\\", "a:b"
+ quotearg:
+ "simple", " \t\n'\"\033??/\\", "a:b"
+ quotearg_colon:
+ "simple", " \t\n'\"\033??/\\", "a:b"
+ */
literal_quoting_style,
/* Quote names for the shell if they contain shell metacharacters
or would cause ambiguous output (ls --quoting-style=shell).
Can result in embedded null bytes if QA_ELIDE_NULL_BYTES is not
- in effect. */
+ in effect.
+
+ quotearg_buffer:
+ "simple", "'\0 \t\n'\\''\"\033??/\\'", "a:b"
+ quotearg:
+ "simple", "' \t\n'\\''\"\033??/\\'", "a:b"
+ quotearg_colon:
+ "simple", "' \t\n'\\''\"\033??/\\'", "'a:b'"
+ */
shell_quoting_style,
/* Quote names for the shell, even if they would normally not
require quoting (ls --quoting-style=shell-always). Can result
in embedded null bytes if QA_ELIDE_NULL_BYTES is not in effect.
Behaves like shell_quoting_style if QA_ELIDE_OUTER_QUOTES is in
- effect. */
+ effect.
+
+ quotearg_buffer:
+ "'simple'", "'\0 \t\n'\\''\"\033??/\\'", "'a:b'"
+ quotearg:
+ "'simple'", "' \t\n'\\''\"\033??/\\'", "'a:b'"
+ quotearg_colon:
+ "'simple'", "' \t\n'\\''\"\033??/\\'", "'a:b'"
+ */
shell_always_quoting_style,
/* Quote names as for a C language string (ls --quoting-style=c).
Behaves like c_maybe_quoting_style if QA_ELIDE_OUTER_QUOTES is
- in effect. */
+ in effect. Split into consecutive strings if
+ QA_SPLIT_TRIGRAPHS.
+
+ quotearg_buffer:
+ "\"simple\"", "\"\\0 \\t\\n'\\\"\\033??/\\\\\"", "\"a:b\""
+ quotearg:
+ "\"simple\"", "\"\\0 \\t\\n'\\\"\\033??/\\\\\"", "\"a:b\""
+ quotearg_colon:
+ "\"simple\"", "\"\\0 \\t\\n'\\\"\\033??/\\\\\"", "\"a\\:b\""
+ */
c_quoting_style,
/* Like c_quoting_style except omit the surrounding double-quote
- characters if no quoted characters are encountered. */
+ characters if no quoted characters are encountered.
+
+ quotearg_buffer:
+ "simple", "\"\\0 \\t\\n'\\\"\\033??/\\\\\"", "a:b"
+ quotearg:
+ "simple", "\"\\0 \\t\\n'\\\"\\033??/\\\\\"", "a:b"
+ quotearg_colon:
+ "simple", "\"\\0 \\t\\n'\\\"\\033??/\\\\\"", "\"a:b\""
+ */
c_maybe_quoting_style,
/* Like c_quoting_style except always omit the surrounding
- double-quote characters (ls --quoting-style=escape). */
+ double-quote characters (ls --quoting-style=escape).
+
+ quotearg_buffer:
+ "simple", "\\0 \\t\\n'\"\\033??/\\\\", "a:b"
+ quotearg:
+ "simple", "\\0 \\t\\n'\"\\033??/\\\\", "a:b"
+ quotearg_colon:
+ "simple", "\\0 \\t\\n'\"\\033??/\\\\", "a\\:b"
+ */
escape_quoting_style,
/* Like clocale_quoting_style, but quote `like this' instead of
- "like this" in the default C locale (ls --quoting-style=locale). */
+ "like this" in the default C locale (ls --quoting-style=locale).
+
+ LC_MESSAGES=C
+ quotearg_buffer:
+ "`simple'", "`\\0 \\t\\n\\'\"\\033??/\\\\'", "`a:b'"
+ quotearg:
+ "`simple'", "`\\0 \\t\\n\\'\"\\033??/\\\\'", "`a:b'"
+ quotearg_colon:
+ "`simple'", "`\\0 \\t\\n\\'\"\\033??/\\\\'", "`a\\:b'"
+
+ LC_MESSAGES=pt_PT.utf8
+ quotearg_buffer:
+ "\302\253simple\302\273",
+ "\302\253\\0 \\t\\n'\"\\033??/\\\\\302\253", "\302\253a:b\302\273"
+ quotearg:
+ "\302\253simple\302\273",
+ "\302\253\\0 \\t\\n'\"\\033??/\\\\\302\253", "\302\253a:b\302\273"
+ quotearg_colon:
+ "\302\253simple\302\273",
+ "\302\253\\0 \\t\\n'\"\\033??/\\\\\302\253", "\302\253a\\:b\302\273"
+ */
locale_quoting_style,
/* Like c_quoting_style except use quotation marks appropriate for
- the locale (ls --quoting-style=clocale). */
+ the locale (ls --quoting-style=clocale).
+
+ LC_MESSAGES=C
+ quotearg_buffer:
+ "\"simple\"", "\"\\0 \\t\\n'\\\"\\033??/\\\\\"", "\"a:b\""
+ quotearg:
+ "\"simple\"", "\"\\0 \\t\\n'\\\"\\033??/\\\\\"", "\"a:b\""
+ quotearg_colon:
+ "\"simple\"", "\"\\0 \\t\\n'\\\"\\033??/\\\\\"", "\"a\\:b\""
+
+ LC_MESSAGES=pt_PT.utf8
+ quotearg_buffer:
+ "\302\253simple\302\273",
+ "\302\253\\0 \\t\\n'\"\\033??/\\\\\302\253", "\302\253a:b\302\273"
+ quotearg:
+ "\302\253simple\302\273",
+ "\302\253\\0 \\t\\n'\"\\033??/\\\\\302\253", "\302\253a:b\302\273"
+ quotearg_colon:
+ "\302\253simple\302\273",
+ "\302\253\\0 \\t\\n'\"\\033??/\\\\\302\253", "\302\253a\\:b\302\273"
+ */
clocale_quoting_style
};
QA_ELIDE_NULL_BYTES = 0x01,
/* Omit the surrounding quote characters if no escaped characters
- are encountered. */
- QA_ELIDE_OUTER_QUOTES = 0x02
+ are encountered. Note that if no other character needs
+ escaping, then neither does the escape character. */
+ QA_ELIDE_OUTER_QUOTES = 0x02,
+
+ /* In the c_quoting_style and c_maybe_quoting_style, split ANSI
+ trigraph sequences into concatenated strings (for example,
+ "?""?/" rather than "??/", which could be confused with
+ "\\"). */
+ QA_SPLIT_TRIGRAPHS = 0x04
};
/* For now, --quoting-style=literal is the default, but this may change. */
projects / gnulib.git / blobdiff