Imported Upstream version 5.9.5upstream/5.9.5

1 files changed, 387 insertions, 0 deletions

diff --git a/regerror.c b/regerror.c
new file mode 100644
index 0000000..385e560
--- /dev/null
+++ b/regerror.c
@@ -0,0 +1,387 @@
+/**********************************************************************
+  regerror.c -  Oniguruma (regular expression library)
+**********************************************************************/
+/*-
+ * Copyright (c) 2002-2007  K.Kosako  <sndgk393 AT ybb DOT ne DOT jp>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ */
+
+#include "regint.h"
+#include <stdio.h> /* for vsnprintf() */
+
+#ifdef HAVE_STDARG_PROTOTYPES
+#include <stdarg.h>
+#define va_init_list(a,b) va_start(a,b)
+#else
+#include <varargs.h>
+#define va_init_list(a,b) va_start(a)
+#endif
+
+extern UChar*
+onig_error_code_to_format(int code)
+{
+  char *p;
+
+  if (code >= 0) return (UChar* )0;
+
+  switch (code) {
+  case ONIG_MISMATCH:
+    p = "mismatch"; break;
+  case ONIG_NO_SUPPORT_CONFIG:
+    p = "no support in this configuration"; break;
+  case ONIGERR_MEMORY:
+    p = "fail to memory allocation"; break;
+  case ONIGERR_MATCH_STACK_LIMIT_OVER:
+    p = "match-stack limit over"; break;
+  case ONIGERR_TYPE_BUG:
+    p = "undefined type (bug)"; break;
+  case ONIGERR_PARSER_BUG:
+    p = "internal parser error (bug)"; break;
+  case ONIGERR_STACK_BUG:
+    p = "stack error (bug)"; break;
+  case ONIGERR_UNDEFINED_BYTECODE:
+    p = "undefined bytecode (bug)"; break;
+  case ONIGERR_UNEXPECTED_BYTECODE:
+    p = "unexpected bytecode (bug)"; break;
+  case ONIGERR_DEFAULT_ENCODING_IS_NOT_SETTED:
+    p = "default multibyte-encoding is not setted"; break;
+  case ONIGERR_SPECIFIED_ENCODING_CANT_CONVERT_TO_WIDE_CHAR:
+    p = "can't convert to wide-char on specified multibyte-encoding"; break;
+  case ONIGERR_INVALID_ARGUMENT:
+    p = "invalid argument"; break;
+  case ONIGERR_END_PATTERN_AT_LEFT_BRACE:
+    p = "end pattern at left brace"; break;
+  case ONIGERR_END_PATTERN_AT_LEFT_BRACKET:
+    p = "end pattern at left bracket"; break;
+  case ONIGERR_EMPTY_CHAR_CLASS:
+    p = "empty char-class"; break;
+  case ONIGERR_PREMATURE_END_OF_CHAR_CLASS:
+    p = "premature end of char-class"; break;
+  case ONIGERR_END_PATTERN_AT_ESCAPE:
+    p = "end pattern at escape"; break;
+  case ONIGERR_END_PATTERN_AT_META:
+    p = "end pattern at meta"; break;
+  case ONIGERR_END_PATTERN_AT_CONTROL:
+    p = "end pattern at control"; break;
+  case ONIGERR_META_CODE_SYNTAX:
+    p = "invalid meta-code syntax"; break;
+  case ONIGERR_CONTROL_CODE_SYNTAX:
+    p = "invalid control-code syntax"; break;
+  case ONIGERR_CHAR_CLASS_VALUE_AT_END_OF_RANGE:
+    p = "char-class value at end of range"; break;
+  case ONIGERR_CHAR_CLASS_VALUE_AT_START_OF_RANGE:
+    p = "char-class value at start of range"; break;
+  case ONIGERR_UNMATCHED_RANGE_SPECIFIER_IN_CHAR_CLASS:
+    p = "unmatched range specifier in char-class"; break;
+  case ONIGERR_TARGET_OF_REPEAT_OPERATOR_NOT_SPECIFIED:
+    p = "target of repeat operator is not specified"; break;
+  case ONIGERR_TARGET_OF_REPEAT_OPERATOR_INVALID:
+    p = "target of repeat operator is invalid"; break;
+  case ONIGERR_NESTED_REPEAT_OPERATOR:
+    p = "nested repeat operator"; break;
+  case ONIGERR_UNMATCHED_CLOSE_PARENTHESIS:
+    p = "unmatched close parenthesis"; break;
+  case ONIGERR_END_PATTERN_WITH_UNMATCHED_PARENTHESIS:
+    p = "end pattern with unmatched parenthesis"; break;
+  case ONIGERR_END_PATTERN_IN_GROUP:
+    p = "end pattern in group"; break;
+  case ONIGERR_UNDEFINED_GROUP_OPTION:
+    p = "undefined group option"; break;
+  case ONIGERR_INVALID_POSIX_BRACKET_TYPE:
+    p = "invalid POSIX bracket type"; break;
+  case ONIGERR_INVALID_LOOK_BEHIND_PATTERN:
+    p = "invalid pattern in look-behind"; break;
+  case ONIGERR_INVALID_REPEAT_RANGE_PATTERN:
+    p = "invalid repeat range {lower,upper}"; break;
+  case ONIGERR_TOO_BIG_NUMBER:
+    p = "too big number"; break;
+  case ONIGERR_TOO_BIG_NUMBER_FOR_REPEAT_RANGE:
+    p = "too big number for repeat range"; break;
+  case ONIGERR_UPPER_SMALLER_THAN_LOWER_IN_REPEAT_RANGE:
+    p = "upper is smaller than lower in repeat range"; break;
+  case ONIGERR_EMPTY_RANGE_IN_CHAR_CLASS:
+    p = "empty range in char class"; break;
+  case ONIGERR_MISMATCH_CODE_LENGTH_IN_CLASS_RANGE:
+    p = "mismatch multibyte code length in char-class range"; break;
+  case ONIGERR_TOO_MANY_MULTI_BYTE_RANGES:
+    p = "too many multibyte code ranges are specified"; break;
+  case ONIGERR_TOO_SHORT_MULTI_BYTE_STRING:
+    p = "too short multibyte code string"; break;
+  case ONIGERR_TOO_BIG_BACKREF_NUMBER:
+    p = "too big backref number"; break;
+  case ONIGERR_INVALID_BACKREF:
+#ifdef USE_NAMED_GROUP
+    p = "invalid backref number/name"; break;
+#else
+    p = "invalid backref number"; break;
+#endif
+  case ONIGERR_NUMBERED_BACKREF_OR_CALL_NOT_ALLOWED:
+    p = "numbered backref/call is not allowed. (use name)"; break;
+  case ONIGERR_TOO_BIG_WIDE_CHAR_VALUE:
+    p = "too big wide-char value"; break;
+  case ONIGERR_TOO_LONG_WIDE_CHAR_VALUE:
+    p = "too long wide-char value"; break;
+  case ONIGERR_INVALID_CODE_POINT_VALUE:
+    p = "invalid code point value"; break;
+  case ONIGERR_EMPTY_GROUP_NAME:
+    p = "group name is empty"; break;
+  case ONIGERR_INVALID_GROUP_NAME:
+    p = "invalid group name <%n>"; break;
+  case ONIGERR_INVALID_CHAR_IN_GROUP_NAME:
+#ifdef USE_NAMED_GROUP
+    p = "invalid char in group name <%n>"; break;
+#else
+    p = "invalid char in group number <%n>"; break;
+#endif
+  case ONIGERR_UNDEFINED_NAME_REFERENCE:
+    p = "undefined name <%n> reference"; break;
+  case ONIGERR_UNDEFINED_GROUP_REFERENCE:
+    p = "undefined group <%n> reference"; break;
+  case ONIGERR_MULTIPLEX_DEFINED_NAME:
+    p = "multiplex defined name <%n>"; break;
+  case ONIGERR_MULTIPLEX_DEFINITION_NAME_CALL:
+    p = "multiplex definition name <%n> call"; break;
+  case ONIGERR_NEVER_ENDING_RECURSION:
+    p = "never ending recursion"; break;
+  case ONIGERR_GROUP_NUMBER_OVER_FOR_CAPTURE_HISTORY:
+    p = "group number is too big for capture history"; break;
+  case ONIGERR_INVALID_CHAR_PROPERTY_NAME:
+    p = "invalid character property name {%n}"; break;
+  case ONIGERR_NOT_SUPPORTED_ENCODING_COMBINATION:
+    p = "not supported encoding combination"; break;
+  case ONIGERR_INVALID_COMBINATION_OF_OPTIONS:
+    p = "invalid combination of options"; break;
+  case ONIGERR_OVER_THREAD_PASS_LIMIT_COUNT:
+    p = "over thread pass limit count"; break;
+
+  default:
+    p = "undefined error code"; break;
+  }
+
+  return (UChar* )p;
+}
+
+static void sprint_byte(char* s, unsigned int v)
+{
+  sprintf(s, "%02x", (v & 0377));
+}
+
+static void sprint_byte_with_x(char* s, unsigned int v)
+{
+  sprintf(s, "\\x%02x", (v & 0377));
+}
+
+static int to_ascii(OnigEncoding enc, UChar *s, UChar *end,
+		    UChar buf[], int buf_size, int *is_over)
+{
+  int len;
+  UChar *p;
+  OnigCodePoint code;
+
+  if (ONIGENC_MBC_MINLEN(enc) > 1) {
+    p = s;
+    len = 0;
+    while (p < end) {
+      code = ONIGENC_MBC_TO_CODE(enc, p, end);
+      if (code >= 0x80) {
+	if (code > 0xffff && len + 10 <= buf_size) {
+	  sprint_byte_with_x((char*)(&(buf[len])), (unsigned int)(code >> 24));
+	  sprint_byte((char*)(&(buf[len+4])),      (unsigned int)(code >> 16));
+	  sprint_byte((char*)(&(buf[len+6])),      (unsigned int)(code >>  8));
+	  sprint_byte((char*)(&(buf[len+8])),      (unsigned int)code);
+	  len += 10;
+	}
+	else if (len + 6 <= buf_size) {
+	  sprint_byte_with_x((char*)(&(buf[len])), (unsigned int)(code >> 8));
+	  sprint_byte((char*)(&(buf[len+4])),      (unsigned int)code);
+	  len += 6;
+	}
+	else {
+	  break;
+	}
+      }
+      else {
+	buf[len++] = (UChar )code;
+      }
+
+      p += enclen(enc, p);
+      if (len >= buf_size) break;
+    }
+
+    *is_over = ((p < end) ? 1 : 0);
+  }
+  else {
+    len = MIN((end - s), buf_size);
+    xmemcpy(buf, s, (size_t )len);
+    *is_over = ((buf_size < (end - s)) ? 1 : 0);
+  }
+
+  return len;
+}
+
+
+/* for ONIG_MAX_ERROR_MESSAGE_LEN */
+#define MAX_ERROR_PAR_LEN   30
+
+extern int
+#ifdef HAVE_STDARG_PROTOTYPES
+onig_error_code_to_str(UChar* s, int code, ...)
+#else
+onig_error_code_to_str(s, code, va_alist)
+  UChar* s;
+  int code;
+  va_dcl 
+#endif
+{
+  UChar *p, *q;
+  OnigErrorInfo* einfo;
+  int len, is_over;
+  UChar parbuf[MAX_ERROR_PAR_LEN];
+  va_list vargs;
+
+  va_init_list(vargs, code);
+
+  switch (code) {
+  case ONIGERR_UNDEFINED_NAME_REFERENCE:
+  case ONIGERR_UNDEFINED_GROUP_REFERENCE:
+  case ONIGERR_MULTIPLEX_DEFINED_NAME:
+  case ONIGERR_MULTIPLEX_DEFINITION_NAME_CALL:
+  case ONIGERR_INVALID_GROUP_NAME:
+  case ONIGERR_INVALID_CHAR_IN_GROUP_NAME:
+  case ONIGERR_INVALID_CHAR_PROPERTY_NAME:
+    einfo = va_arg(vargs, OnigErrorInfo*);
+    len = to_ascii(einfo->enc, einfo->par, einfo->par_end,
+		   parbuf, MAX_ERROR_PAR_LEN - 3, &is_over);
+    q = onig_error_code_to_format(code);
+    p = s;
+    while (*q != '\0') {
+      if (*q == '%') {
+	q++;
+	if (*q == 'n') { /* '%n': name */
+	  xmemcpy(p, parbuf, len);
+	  p += len;
+	  if (is_over != 0) {
+	    xmemcpy(p, "...", 3);
+	    p += 3;
+	  }
+	  q++;
+	}
+	else
+	  goto normal_char;
+      }
+      else {
+      normal_char:
+	*p++ = *q++;
+      }
+    }
+    *p = '\0';
+    len = p - s;
+    break;
+
+  default:
+    q = onig_error_code_to_format(code);
+    len = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, q);
+    xmemcpy(s, q, len);
+    s[len] = '\0';
+    break;
+  }
+
+  va_end(vargs);
+  return len;
+}
+
+
+void
+#ifdef HAVE_STDARG_PROTOTYPES
+onig_snprintf_with_pattern(UChar buf[], int bufsize, OnigEncoding enc,
+                           UChar* pat, UChar* pat_end, const UChar *fmt, ...)
+#else
+onig_snprintf_with_pattern(buf, bufsize, enc, pat, pat_end, fmt, va_alist)
+    UChar buf[];
+    int bufsize;
+    OnigEncoding enc;
+    UChar* pat;
+    UChar* pat_end;
+    const UChar *fmt;
+    va_dcl
+#endif
+{
+  int n, need, len;
+  UChar *p, *s, *bp;
+  UChar bs[6];
+  va_list args;
+
+  va_init_list(args, fmt);
+  n = xvsnprintf((char* )buf, bufsize, (const char* )fmt, args);
+  va_end(args);
+
+  need = (pat_end - pat) * 4 + 4;
+
+  if (n + need < bufsize) {
+    strcat((char* )buf, ": /");
+    s = buf + onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, buf);
+
+    p = pat;
+    while (p < pat_end) {
+      if (*p == '\\') {
+	*s++ = *p++;
+	len = enclen(enc, p);
+	while (len-- > 0) *s++ = *p++;
+      }
+      else if (*p == '/') {
+	*s++ = (unsigned char )'\\';
+	*s++ = *p++;
+      }
+      else if (ONIGENC_IS_MBC_HEAD(enc, p)) {
+        len = enclen(enc, p);
+        if (ONIGENC_MBC_MINLEN(enc) == 1) {
+          while (len-- > 0) *s++ = *p++;
+        }
+        else { /* for UTF16 */
+          int blen;
+
+          while (len-- > 0) {
+	    sprint_byte_with_x((char* )bs, (unsigned int )(*p++));
+            blen = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, bs);
+            bp = bs;
+            while (blen-- > 0) *s++ = *bp++;
+          }
+        }
+      }
+      else if (!ONIGENC_IS_CODE_PRINT(enc, *p) &&
+	       !ONIGENC_IS_CODE_SPACE(enc, *p)) {
+	sprint_byte_with_x((char* )bs, (unsigned int )(*p++));
+	len = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, bs);
+        bp = bs;
+	while (len-- > 0) *s++ = *bp++;
+      }
+      else {
+	*s++ = *p++;
+      }
+    }
+
+    *s++ = '/';
+    *s   = '\0';
+  }
+}