Initial revision

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@5892 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 256 insertions, 0 deletions

diff --git a/reggnu.c b/reggnu.c
new file mode 100644
index 0000000000..9c6a2161c2
--- /dev/null
+++ b/reggnu.c
@@ -0,0 +1,256 @@
+/**********************************************************************
+
+  reggnu.c -  Oniguruma (regular expression library)
+
+  Copyright (C) 2002-2004  K.Kosako (kosako@sofnec.co.jp)
+
+**********************************************************************/
+#include "regint.h"
+
+#ifndef ONIGGNU_H     /* name changes from oniggnu.h to regex.h in ruby. */
+#include "oniggnu.h"
+#endif
+
+#if defined(RUBY_PLATFORM) || defined(RUBY)
+#ifndef ONIG_RUBY_M17N
+#define USE_COMPATIBILITY_FOR_RUBY_EXTENSION_LIBRARY
+#endif
+#endif
+
+#ifndef NULL
+#define NULL   ((void* )0)
+#endif
+
+extern void
+re_free_registers(OnigRegion* r)
+{
+  /* 0: don't free self */
+  onig_region_free(r, 0);
+}
+
+extern int
+re_adjust_startpos(regex_t* reg, const char* string, int size,
+		   int startpos, int range)
+{
+  if (startpos > 0 && ONIGENC_MBC_MAXLEN(reg->enc) != 1 && startpos < size) {
+    UChar *p;
+    UChar *s = (UChar* )string + startpos;
+
+    if (range > 0) {
+      p = onigenc_get_right_adjust_char_head(reg->enc, (UChar* )string, s);
+    }
+    else {
+      p = ONIGENC_LEFT_ADJUST_CHAR_HEAD(reg->enc, (UChar* )string, s);
+    }
+    return p - (UChar* )string;
+  }
+
+  return startpos;
+}
+
+extern int
+re_match(regex_t* reg, const char* str, int size, int pos,
+	 struct re_registers* regs)
+{
+  return onig_match(reg, (UChar* )str, (UChar* )(str + size),
+		    (UChar* )(str + pos), regs, ONIG_OPTION_NONE);
+}
+
+extern int
+re_search(regex_t* bufp, const char* string, int size, int startpos, int range,
+	  struct re_registers* regs)
+{
+  return onig_search(bufp, (UChar* )string, (UChar* )(string + size),
+		     (UChar* )(string + startpos),
+		     (UChar* )(string + startpos + range),
+		     regs, ONIG_OPTION_NONE);
+}
+
+extern int
+re_compile_pattern(const char* pattern, int size, regex_t* reg, char* ebuf)
+{
+  int r;
+  OnigErrorInfo einfo;
+
+  r = onig_compile(reg, (UChar* )pattern, (UChar* )(pattern + size), &einfo);
+  if (r != 0) {
+    if (IS_NOT_NULL(ebuf))
+      (void )onig_error_code_to_str((UChar* )ebuf, r, &einfo);
+  }
+
+  return r;
+}
+
+extern int
+re_recompile_pattern(const char* pattern, int size, regex_t* reg, char* ebuf)
+{
+  int r;
+  OnigErrorInfo einfo;
+  OnigEncoding enc;
+
+  /* I think encoding and options should be arguments of this function.
+     But this is adapted to present re.c. (2002/11/29)
+   */
+  enc = OnigEncDefaultCharEncoding;
+
+  r = onig_recompile(reg, (UChar* )pattern, (UChar* )(pattern + size),
+		     reg->options, enc, OnigDefaultSyntax, &einfo);
+  if (r != 0) {
+    if (IS_NOT_NULL(ebuf))
+      (void )onig_error_code_to_str((UChar* )ebuf, r, &einfo);
+  }
+  return r;
+}
+
+extern void
+re_free_pattern(regex_t* reg)
+{
+  onig_free(reg);
+}
+
+extern int
+re_alloc_pattern(regex_t** reg)
+{
+  return onig_alloc_init(reg, ONIG_OPTION_DEFAULT, OnigEncDefaultCharEncoding,
+			 OnigDefaultSyntax);
+}
+
+extern void
+re_set_casetable(const char* table)
+{
+  onigenc_set_default_caseconv_table((UChar* )table);
+}
+
+#ifdef USE_COMPATIBILITY_FOR_RUBY_EXTENSION_LIBRARY
+static const unsigned char mbctab_ascii[] = {
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+};
+
+static const unsigned char mbctab_euc[] = {
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0,
+};
+
+static const unsigned char mbctab_sjis[] = {
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0
+};
+
+static const unsigned char mbctab_utf8[] = {
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+  3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 0, 0,
+};
+
+const unsigned char *re_mbctab = mbctab_ascii;
+#endif
+
+extern void
+#ifdef ONIG_RUBY_M17N
+re_mbcinit(OnigEncoding enc)
+#else
+re_mbcinit(int mb_code)
+#endif
+{
+#ifdef ONIG_RUBY_M17N
+
+  onigenc_set_default_encoding(enc);
+
+#else
+
+  OnigEncoding enc;
+
+  switch (mb_code) {
+  case MBCTYPE_ASCII:
+    enc = ONIG_ENCODING_ASCII;
+    break;
+  case MBCTYPE_EUC:
+    enc = ONIG_ENCODING_EUC_JP;
+    break;
+  case MBCTYPE_SJIS:
+    enc = ONIG_ENCODING_SJIS;
+    break;
+  case MBCTYPE_UTF8:
+    enc = ONIG_ENCODING_UTF8;
+    break;
+  default:
+    return ;
+    break;
+  }
+
+  onigenc_set_default_encoding(enc);
+#endif
+
+#ifdef USE_COMPATIBILITY_FOR_RUBY_EXTENSION_LIBRARY
+  switch (mb_code) {
+  case MBCTYPE_ASCII:
+    re_mbctab = mbctab_ascii;
+    break;
+  case MBCTYPE_EUC:
+    re_mbctab = mbctab_euc;
+    break;
+  case MBCTYPE_SJIS:
+    re_mbctab = mbctab_sjis;
+    break;
+  case MBCTYPE_UTF8:
+    re_mbctab = mbctab_utf8;
+    break;
+  }
+#endif
+}