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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2021-07-01 03:55:08 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-07-01 20:06:04 +0200 |
| commit | 62519b882d7485bae4c0a7e1e0adb576610400a9 (patch) | |
| tree | f851bc32a4760049fd936f2bb68c35565ff10df2 /lib/string_helpers.c | |
| parent | lib/string_helpers: switch to use BIT() macro (diff) | |
| download | linux-62519b882d7485bae4c0a7e1e0adb576610400a9.tar.xz linux-62519b882d7485bae4c0a7e1e0adb576610400a9.zip | |
lib/string_helpers: move ESCAPE_NP check inside 'else' branch in a loop
Refactor code to have better readability by moving ESCAPE_NP handling
inside 'else' branch in the loop.
No functional change intended.
Link: https://lkml.kernel.org/r/20210504180819.73127-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Chuck Lever <chuck.lever@oracle.com>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/string_helpers.c')
| -rw-r--r-- | lib/string_helpers.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/lib/string_helpers.c b/lib/string_helpers.c index 7f2d5fbaf243..b10a18b4663b 100644 --- a/lib/string_helpers.c +++ b/lib/string_helpers.c @@ -452,10 +452,10 @@ static bool escape_hex(unsigned char c, char **dst, char *end) * The process of escaping byte buffer includes several parts. They are applied * in the following sequence. * - * 1. The character is matched to the printable class, if asked, and in - * case of match it passes through to the output. - * 2. The character is not matched to the one from @only string and thus + * 1. The character is not matched to the one from @only string and thus * must go as-is to the output. + * 2. The character is matched to the printable class, if asked, and in + * case of match it passes through to the output. * 3. The character is checked if it falls into the class given by @flags. * %ESCAPE_OCTAL and %ESCAPE_HEX are going last since they cover any * character. Note that they actually can't go together, otherwise @@ -506,19 +506,22 @@ int string_escape_mem(const char *src, size_t isz, char *dst, size_t osz, /* * Apply rules in the following sequence: - * - the character is printable, when @flags has - * %ESCAPE_NP bit set * - the @only string is supplied and does not contain a * character under question + * - the character is printable, when @flags has + * %ESCAPE_NP bit set * - the character doesn't fall into a class of symbols * defined by given @flags * In these cases we just pass through a character to the * output buffer. */ - if ((flags & ESCAPE_NP && isprint(c)) || - (is_dict && !strchr(only, c))) { + if (is_dict && !strchr(only, c)) { /* do nothing */ } else { + if (isprint(c) && + flags & ESCAPE_NP && escape_passthrough(c, &p, end)) + continue; + if (flags & ESCAPE_SPACE && escape_space(c, &p, end)) continue; |