aboutsummaryrefslogtreecommitdiffstats
path: root/erts/emulator/pcre/pcre_string_utils.c
diff options
context:
space:
mode:
authorPatrik Nyblom <[email protected]>2013-07-15 11:08:18 +0200
committerPatrik Nyblom <[email protected]>2013-07-19 18:06:02 +0200
commitd0898734b7ae62572579a0ecd0b03ab451b233bb (patch)
tree48fd4a2aef87accf9d3c12d3a0c2c411f7f8f150 /erts/emulator/pcre/pcre_string_utils.c
parent712f2cad96a941d68a2f9ad092badd5bc60e8cdd (diff)
downloadotp-d0898734b7ae62572579a0ecd0b03ab451b233bb.tar.gz
otp-d0898734b7ae62572579a0ecd0b03ab451b233bb.tar.bz2
otp-d0898734b7ae62572579a0ecd0b03ab451b233bb.zip
Update to PCRE 8.33, w/o the erts_ prefix added
Diffstat (limited to 'erts/emulator/pcre/pcre_string_utils.c')
-rw-r--r--erts/emulator/pcre/pcre_string_utils.c211
1 files changed, 211 insertions, 0 deletions
diff --git a/erts/emulator/pcre/pcre_string_utils.c b/erts/emulator/pcre/pcre_string_utils.c
new file mode 100644
index 0000000000..274070469f
--- /dev/null
+++ b/erts/emulator/pcre/pcre_string_utils.c
@@ -0,0 +1,211 @@
+/*************************************************
+* Perl-Compatible Regular Expressions *
+*************************************************/
+
+/* PCRE is a library of functions to support regular expressions whose syntax
+and semantics are as close as possible to those of the Perl 5 language.
+
+ Written by Philip Hazel
+ Copyright (c) 1997-2013 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ * Neither the name of the University of Cambridge nor the names of its
+ contributors may be used to endorse or promote products derived from
+ this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+*/
+
+
+/* This module contains internal functions for comparing and finding the length
+of strings for different data item sizes. */
+/* %ExternalCopyright% */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "pcre_internal.h"
+
+#ifndef COMPILE_PCRE8
+
+/*************************************************
+* Compare string utilities *
+*************************************************/
+
+/* The following two functions compares two strings. Basically a strcmp
+for non 8 bit characters.
+
+Arguments:
+ str1 first string
+ str2 second string
+
+Returns: 0 if both string are equal (like strcmp), 1 otherwise
+*/
+
+int
+PRIV(strcmp_uc_uc)(const pcre_uchar *str1, const pcre_uchar *str2)
+{
+pcre_uchar c1;
+pcre_uchar c2;
+
+while (*str1 != '\0' || *str2 != '\0')
+ {
+ c1 = *str1++;
+ c2 = *str2++;
+ if (c1 != c2)
+ return ((c1 > c2) << 1) - 1;
+ }
+/* Both length and characters must be equal. */
+return 0;
+}
+
+#ifdef COMPILE_PCRE32
+
+int
+PRIV(strcmp_uc_uc_utf)(const pcre_uchar *str1, const pcre_uchar *str2)
+{
+pcre_uchar c1;
+pcre_uchar c2;
+
+while (*str1 != '\0' || *str2 != '\0')
+ {
+ c1 = RAWUCHARINC(str1);
+ c2 = RAWUCHARINC(str2);
+ if (c1 != c2)
+ return ((c1 > c2) << 1) - 1;
+ }
+/* Both length and characters must be equal. */
+return 0;
+}
+
+#endif /* COMPILE_PCRE32 */
+
+int
+PRIV(strcmp_uc_c8)(const pcre_uchar *str1, const char *str2)
+{
+const pcre_uint8 *ustr2 = (pcre_uint8 *)str2;
+pcre_uchar c1;
+pcre_uchar c2;
+
+while (*str1 != '\0' || *ustr2 != '\0')
+ {
+ c1 = *str1++;
+ c2 = (pcre_uchar)*ustr2++;
+ if (c1 != c2)
+ return ((c1 > c2) << 1) - 1;
+ }
+/* Both length and characters must be equal. */
+return 0;
+}
+
+#ifdef COMPILE_PCRE32
+
+int
+PRIV(strcmp_uc_c8_utf)(const pcre_uchar *str1, const char *str2)
+{
+const pcre_uint8 *ustr2 = (pcre_uint8 *)str2;
+pcre_uchar c1;
+pcre_uchar c2;
+
+while (*str1 != '\0' || *ustr2 != '\0')
+ {
+ c1 = RAWUCHARINC(str1);
+ c2 = (pcre_uchar)*ustr2++;
+ if (c1 != c2)
+ return ((c1 > c2) << 1) - 1;
+ }
+/* Both length and characters must be equal. */
+return 0;
+}
+
+#endif /* COMPILE_PCRE32 */
+
+/* The following two functions compares two, fixed length
+strings. Basically an strncmp for non 8 bit characters.
+
+Arguments:
+ str1 first string
+ str2 second string
+ num size of the string
+
+Returns: 0 if both string are equal (like strcmp), 1 otherwise
+*/
+
+int
+PRIV(strncmp_uc_uc)(const pcre_uchar *str1, const pcre_uchar *str2, unsigned int num)
+{
+pcre_uchar c1;
+pcre_uchar c2;
+
+while (num-- > 0)
+ {
+ c1 = *str1++;
+ c2 = *str2++;
+ if (c1 != c2)
+ return ((c1 > c2) << 1) - 1;
+ }
+/* Both length and characters must be equal. */
+return 0;
+}
+
+int
+PRIV(strncmp_uc_c8)(const pcre_uchar *str1, const char *str2, unsigned int num)
+{
+const pcre_uint8 *ustr2 = (pcre_uint8 *)str2;
+pcre_uchar c1;
+pcre_uchar c2;
+
+while (num-- > 0)
+ {
+ c1 = *str1++;
+ c2 = (pcre_uchar)*ustr2++;
+ if (c1 != c2)
+ return ((c1 > c2) << 1) - 1;
+ }
+/* Both length and characters must be equal. */
+return 0;
+}
+
+/* The following function returns with the length of
+a zero terminated string. Basically an strlen for non 8 bit characters.
+
+Arguments:
+ str string
+
+Returns: length of the string
+*/
+
+unsigned int
+PRIV(strlen_uc)(const pcre_uchar *str)
+{
+unsigned int len = 0;
+while (*str++ != 0)
+ len++;
+return len;
+}
+
+#endif /* !COMPILE_PCRE8 */
+
+/* End of pcre_string_utils.c */