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Implement flags in the glob convert functions.

This commit is contained in:
Zoltán Herczeg 2017-05-22 10:23:36 +00:00
parent e6d3997a89
commit e36e582af0
3 changed files with 135 additions and 29 deletions
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94
src/pcre2_convert.c
View File

@ -56,6 +56,8 @@ POSSIBILITY OF SUCH DAMAGE.
/* Some pcre2_compile() error numbers are used herein. */
/* Note: ERROR_NO_SLASH_Z is not an error code. */
#define ERROR_NO_SLASH_Z 100
#define ERROR_END_BACKSLASH 101
#define ERROR_MISSING_SQUARE_BRACKET 106
#define ERROR_MISSING_CLOSING_PARENTHESIS 114
@ -724,6 +726,9 @@ PCRE2_SPTR pattern_start = pattern;
PCRE2_SPTR pattern_end = pattern + plength;
PCRE2_UCHAR separator = ccontext->glob_separator;
PCRE2_UCHAR c;
BOOL no_backslash = (options & PCRE2_CONVERT_GLOB_NO_BACKSLASH) != 0;
BOOL no_wildsep = (options & PCRE2_CONVERT_GLOB_NO_WILD_SEPARATOR) != 0;
BOOL no_starstar = (options & PCRE2_CONVERT_GLOB_NO_STARSTAR) != 0;
BOOL with_escape, is_start;
int result, len;
@ -747,8 +752,18 @@ out.out_str[2] = CHAR_s;
out.out_str[3] = CHAR_RIGHT_PARENTHESIS;
convert_glob_write_str(&out, 4);
if (pattern + 1 >= pattern_end ||
pattern[0] != CHAR_ASTERISK || pattern[1] != CHAR_ASTERISK)
is_start = TRUE;
if (pattern < pattern_end && pattern[0] == CHAR_ASTERISK)
{
if (no_wildsep)
is_start = FALSE;
else if (!no_starstar && pattern + 1 < pattern_end &&
pattern[1] == CHAR_ASTERISK)
is_start = FALSE;
}
if (is_start)
{
out.out_str[0] = CHAR_BACKSLASH;
out.out_str[1] = CHAR_A;
@ -763,10 +778,10 @@ while (pattern < pattern_end)
if (c == CHAR_ASTERISK)
{
if (pattern < pattern_end && *pattern == CHAR_ASTERISK)
{
is_start = pattern == pattern_start + 1;
is_start = pattern == pattern_start + 1;
if (!no_starstar && pattern < pattern_end && *pattern == CHAR_ASTERISK)
{
if (!is_start && pattern[-2] != separator)
{
result = PCRE2_ERROR_CONVERT_SYNTAX;
@ -778,19 +793,11 @@ while (pattern < pattern_end)
if (pattern >= pattern_end)
{
convert_glob_write(&out, CHAR_NULL);
if (!dummyrun &&
out.output_size != (PCRE2_SIZE) (out.output - use_buffer))
{
result = PCRE2_ERROR_NOMEMORY;
break;
}
*bufflenptr = out.output_size - 1;
return 0;
result = ERROR_NO_SLASH_Z;
break;
}
if (*pattern == CHAR_BACKSLASH)
if (!no_backslash && *pattern == CHAR_BACKSLASH)
{
pattern++;
if (pattern >= pattern_end)
@ -849,10 +856,32 @@ while (pattern < pattern_end)
continue;
}
if (pattern != pattern_start + 1)
if (pattern < pattern_end && *pattern == CHAR_ASTERISK)
{
do pattern++; while (pattern < pattern_end &&
*pattern == CHAR_ASTERISK);
}
if (no_wildsep)
{
if (pattern >= pattern_end)
{
result = ERROR_NO_SLASH_Z;
break;
}
/* Start check must be after the end check. */
if (is_start) continue;
}
if (!is_start)
convert_glob_print_commit(&out);
convert_glob_print_wildcard(&out, separator, with_escape);
if (no_wildsep)
convert_glob_write(&out, CHAR_DOT);
else
convert_glob_print_wildcard(&out, separator, with_escape);
out.out_str[0] = CHAR_ASTERISK;
out.out_str[1] = CHAR_QUESTION_MARK;
convert_glob_write_str(&out, 2);
@ -861,7 +890,10 @@ while (pattern < pattern_end)
if (c == CHAR_QUESTION_MARK)
{
convert_glob_print_wildcard(&out, separator, with_escape);
if (no_wildsep)
convert_glob_write(&out, CHAR_DOT);
else
convert_glob_print_wildcard(&out, separator, with_escape);
continue;
}
@ -873,7 +905,7 @@ while (pattern < pattern_end)
continue;
}
if (c == CHAR_BACKSLASH)
if (!no_backslash && c == CHAR_BACKSLASH)
{
if (pattern >= pattern_end)
{
@ -889,12 +921,20 @@ while (pattern < pattern_end)
convert_glob_write(&out, c);
}
if (result == 0)
if (result == 0 || result == ERROR_NO_SLASH_Z)
{
out.out_str[0] = CHAR_BACKSLASH;
out.out_str[1] = CHAR_z;
out.out_str[2] = CHAR_NULL;
convert_glob_write_str(&out, 3);
if (result == ERROR_NO_SLASH_Z)
{
convert_glob_write(&out, CHAR_NULL);
result = 0;
}
else
{
out.out_str[0] = CHAR_BACKSLASH;
out.out_str[1] = CHAR_z;
out.out_str[2] = CHAR_NULL;
convert_glob_write_str(&out, 3);
}
if (!dummyrun && out.output_size != (PCRE2_SIZE) (out.output - use_buffer))
result = PCRE2_ERROR_NOMEMORY;
@ -992,8 +1032,8 @@ for (i = 0; i < 2; i++)
switch(pattype)
{
case PCRE2_CONVERT_GLOB:
rc = convert_glob(options, pattern, plength, utf, use_buffer, use_length,
bufflenptr, dummyrun, ccontext);
rc = convert_glob(options & ~PCRE2_CONVERT_GLOB, pattern, plength, utf,
use_buffer, use_length, bufflenptr, dummyrun, ccontext);
break;
case PCRE2_CONVERT_POSIX_BASIC:

30
testdata/testinput24 vendored
View File

@ -9,7 +9,7 @@
# Set the glob separator explicitly so that different OS defaults are not a
# problem. Then test various errors.
#pattern convert=glob_basic,convert_glob_separator=/
#pattern convert=glob,convert_glob_separator=/
/abc/posix
@ -245,6 +245,34 @@
/abc\/**\/abc/
#pattern convert=glob:glob_no_starstar
/***/
/**a**/
#pattern convert=unset
#pattern convert=glob:glob_no_wild_separator
/*/
/*a*/
/**a**/
/a*b/
/*a*b*/
/??a??/
#pattern convert=unset
#pattern convert=glob:glob_no_backslash
/a\b\cd/
/**\/a/
#pattern convert=unset:posix_extended
/a[[:>:]z/

40
testdata/testoutput24 vendored
View File

@ -9,7 +9,7 @@
# Set the glob separator explicitly so that different OS defaults are not a
# problem. Then test various errors.
#pattern convert=glob_basic,convert_glob_separator=/
#pattern convert=glob,convert_glob_separator=/
/abc/posix
** The convert and posix modifiers are mutually exclusive
@ -375,6 +375,44 @@ No match
/abc\/**\/abc/
(?s)\Aabc/(*COMMIT)(?:.*?/)??abc\z
#pattern convert=glob:glob_no_starstar
/***/
(?s)\A[^/]*?\z
/**a**/
(?s)\A[^/]*?a(*COMMIT)[^/]*?\z
#pattern convert=unset
#pattern convert=glob:glob_no_wild_separator
/*/
(?s)
/*a*/
(?s)a
/**a**/
** Pattern conversion error at offset 2: invalid syntax
/a*b/
(?s)\Aa(*COMMIT).*?b\z
/*a*b*/
(?s)a(*COMMIT).*?b
/??a??/
(?s)\A..a..\z
#pattern convert=unset
#pattern convert=glob:glob_no_backslash
/a\b\cd/
(?s)\Aa\\b\\cd\z
/**\/a/
** Pattern conversion error at offset 2: invalid syntax
#pattern convert=unset:posix_extended
/a[[:>:]z/