added tag v1_9_0_4

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_9_0_4@18845 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 351 insertions, 0 deletions

diff --git a/trunk/regparse.h b/trunk/regparse.h
new file mode 100644
index 0000000000..cd653f5a8e
--- /dev/null
+++ b/trunk/regparse.h
@@ -0,0 +1,351 @@
+#ifndef ONIGURUMA_REGPARSE_H
+#define ONIGURUMA_REGPARSE_H
+/**********************************************************************
+  regparse.h -  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"
+
+/* node type */
+#define NT_STR         0
+#define NT_CCLASS      1
+#define NT_CTYPE       2
+#define NT_CANY        3
+#define NT_BREF        4
+#define NT_QTFR        5
+#define NT_ENCLOSE     6
+#define NT_ANCHOR      7
+#define NT_LIST        8
+#define NT_ALT         9
+#define NT_CALL       10
+
+/* node type bit */
+#define NTYPE2BIT(type)      (1<<(type))
+
+#define BIT_NT_STR        NTYPE2BIT(NT_STR)
+#define BIT_NT_CCLASS     NTYPE2BIT(NT_CCLASS)
+#define BIT_NT_CTYPE      NTYPE2BIT(NT_CTYPE)
+#define BIT_NT_CANY       NTYPE2BIT(NT_CANY)
+#define BIT_NT_BREF       NTYPE2BIT(NT_BREF)
+#define BIT_NT_QTFR       NTYPE2BIT(NT_QTFR)
+#define BIT_NT_ENCLOSE    NTYPE2BIT(NT_ENCLOSE)
+#define BIT_NT_ANCHOR     NTYPE2BIT(NT_ANCHOR)
+#define BIT_NT_LIST       NTYPE2BIT(NT_LIST)
+#define BIT_NT_ALT        NTYPE2BIT(NT_ALT)
+#define BIT_NT_CALL       NTYPE2BIT(NT_CALL)
+
+#define IS_NODE_TYPE_SIMPLE(type) \
+  ((NTYPE2BIT(type) & (BIT_NT_STR | BIT_NT_CCLASS | BIT_NT_CTYPE |\
+                       BIT_NT_CANY | BIT_NT_BREF)) != 0)
+
+#define NTYPE(node)             ((node)->u.base.type)
+#define SET_NTYPE(node, ntype)   (node)->u.base.type = (ntype)
+
+#define NSTR(node)         (&((node)->u.str))
+#define NCCLASS(node)      (&((node)->u.cclass))
+#define NCTYPE(node)       (&((node)->u.ctype))
+#define NBREF(node)        (&((node)->u.bref))
+#define NQTFR(node)        (&((node)->u.qtfr))
+#define NENCLOSE(node)     (&((node)->u.enclose))
+#define NANCHOR(node)      (&((node)->u.anchor))
+#define NCONS(node)        (&((node)->u.cons))
+#define NCALL(node)        (&((node)->u.call))
+
+#define NCAR(node)         (NCONS(node)->car)
+#define NCDR(node)         (NCONS(node)->cdr)
+
+
+
+#define ANCHOR_ANYCHAR_STAR_MASK (ANCHOR_ANYCHAR_STAR | ANCHOR_ANYCHAR_STAR_ML)
+#define ANCHOR_END_BUF_MASK      (ANCHOR_END_BUF | ANCHOR_SEMI_END_BUF)
+
+#define ENCLOSE_MEMORY           (1<<0)
+#define ENCLOSE_OPTION           (1<<1)
+#define ENCLOSE_STOP_BACKTRACK   (1<<2)
+
+#define NODE_STR_MARGIN         16
+#define NODE_STR_BUF_SIZE       24  /* sizeof(CClassNode) - sizeof(int)*4 */
+#define NODE_BACKREFS_SIZE       6
+
+#define NSTR_RAW                (1<<0) /* by backslashed number */
+#define NSTR_AMBIG              (1<<1)
+#define NSTR_DONT_GET_OPT_INFO  (1<<2)
+
+#define NSTRING_LEN(node)             ((node)->u.str.end - (node)->u.str.s)
+#define NSTRING_SET_RAW(node)          (node)->u.str.flag |= NSTR_RAW
+#define NSTRING_CLEAR_RAW(node)        (node)->u.str.flag &= ~NSTR_RAW
+#define NSTRING_SET_AMBIG(node)        (node)->u.str.flag |= NSTR_AMBIG
+#define NSTRING_SET_DONT_GET_OPT_INFO(node) \
+  (node)->u.str.flag |= NSTR_DONT_GET_OPT_INFO
+#define NSTRING_IS_RAW(node)          (((node)->u.str.flag & NSTR_RAW)   != 0)
+#define NSTRING_IS_AMBIG(node)        (((node)->u.str.flag & NSTR_AMBIG) != 0)
+#define NSTRING_IS_DONT_GET_OPT_INFO(node) \
+  (((node)->u.str.flag & NSTR_DONT_GET_OPT_INFO) != 0)
+
+#define BACKREFS_P(br) \
+  (IS_NOT_NULL((br)->back_dynamic) ? (br)->back_dynamic : (br)->back_static);
+
+#define NQ_TARGET_ISNOT_EMPTY     0
+#define NQ_TARGET_IS_EMPTY        1
+#define NQ_TARGET_IS_EMPTY_MEM    2
+#define NQ_TARGET_IS_EMPTY_REC    3
+
+/* status bits */
+#define NST_MIN_FIXED             (1<<0)
+#define NST_MAX_FIXED             (1<<1)
+#define NST_CLEN_FIXED            (1<<2)
+#define NST_MARK1                 (1<<3)
+#define NST_MARK2                 (1<<4)
+#define NST_MEM_BACKREFED         (1<<5)
+#define NST_STOP_BT_SIMPLE_REPEAT (1<<6)
+#define NST_RECURSION             (1<<7)
+#define NST_CALLED                (1<<8)
+#define NST_ADDR_FIXED            (1<<9)
+#define NST_NAMED_GROUP           (1<<10)
+#define NST_NAME_REF              (1<<11)
+#define NST_IN_REPEAT             (1<<12) /* STK_REPEAT is nested in stack. */
+#define NST_NEST_LEVEL            (1<<13)
+#define NST_BY_NUMBER             (1<<14) /* {n,m} */
+
+#define SET_ENCLOSE_STATUS(node,f)      (node)->u.enclose.state |=  (f)
+#define CLEAR_ENCLOSE_STATUS(node,f)    (node)->u.enclose.state &= ~(f)
+
+#define IS_ENCLOSE_CALLED(en)          (((en)->state & NST_CALLED)        != 0)
+#define IS_ENCLOSE_ADDR_FIXED(en)      (((en)->state & NST_ADDR_FIXED)    != 0)
+#define IS_ENCLOSE_RECURSION(en)       (((en)->state & NST_RECURSION)     != 0)
+#define IS_ENCLOSE_MARK1(en)           (((en)->state & NST_MARK1)         != 0)
+#define IS_ENCLOSE_MARK2(en)           (((en)->state & NST_MARK2)         != 0)
+#define IS_ENCLOSE_MIN_FIXED(en)       (((en)->state & NST_MIN_FIXED)     != 0)
+#define IS_ENCLOSE_MAX_FIXED(en)       (((en)->state & NST_MAX_FIXED)     != 0)
+#define IS_ENCLOSE_CLEN_FIXED(en)      (((en)->state & NST_CLEN_FIXED)    != 0)
+#define IS_ENCLOSE_STOP_BT_SIMPLE_REPEAT(en) \
+    (((en)->state & NST_STOP_BT_SIMPLE_REPEAT) != 0)
+#define IS_ENCLOSE_NAMED_GROUP(en)     (((en)->state & NST_NAMED_GROUP)   != 0)
+
+#define SET_CALL_RECURSION(node)       (node)->u.call.state |= NST_RECURSION
+#define IS_CALL_RECURSION(cn)          (((cn)->state & NST_RECURSION)  != 0)
+#define IS_CALL_NAME_REF(cn)           (((cn)->state & NST_NAME_REF)   != 0)
+#define IS_BACKREF_NAME_REF(bn)        (((bn)->state & NST_NAME_REF)   != 0)
+#define IS_BACKREF_NEST_LEVEL(bn)      (((bn)->state & NST_NEST_LEVEL) != 0)
+#define IS_QUANTIFIER_IN_REPEAT(qn)    (((qn)->state & NST_IN_REPEAT)  != 0)
+#define IS_QUANTIFIER_BY_NUMBER(qn)    (((qn)->state & NST_BY_NUMBER)  != 0)
+
+#define CALLNODE_REFNUM_UNDEF  -1
+
+typedef struct {
+  NodeBase base;
+  UChar* s;
+  UChar* end;
+  unsigned int flag;
+  int    capa;    /* (allocated size - 1) or 0: use buf[] */
+  UChar  buf[NODE_STR_BUF_SIZE];
+} StrNode;
+
+typedef struct {
+  NodeBase base;
+  int state;
+  struct _Node* target;
+  int lower;
+  int upper;
+  int greedy;
+  int target_empty_info;
+  struct _Node* head_exact;
+  struct _Node* next_head_exact;
+  int is_refered;     /* include called node. don't eliminate even if {0} */
+#ifdef USE_COMBINATION_EXPLOSION_CHECK
+  int comb_exp_check_num;  /* 1,2,3...: check,  0: no check  */
+#endif
+} QtfrNode;
+
+typedef struct {
+  NodeBase base;
+  int state;
+  int type;
+  int regnum;
+  OnigOptionType option;
+  struct _Node*  target;
+  AbsAddrType    call_addr;
+  /* for multiple call reference */
+  OnigDistance min_len; /* min length (byte) */
+  OnigDistance max_len; /* max length (byte) */ 
+  int char_len;         /* character length  */
+  int opt_count;        /* referenced count in optimize_node_left() */
+} EncloseNode;
+
+#ifdef USE_SUBEXP_CALL
+
+typedef struct {
+  int           offset;
+  struct _Node* target;
+} UnsetAddr;
+
+typedef struct {
+  int        num;
+  int        alloc;
+  UnsetAddr* us;
+} UnsetAddrList;
+
+typedef struct {
+  NodeBase base;
+  int     state;
+  int     group_num;
+  UChar*  name;
+  UChar*  name_end;
+  struct _Node*  target;  /* EncloseNode : ENCLOSE_MEMORY */
+  UnsetAddrList* unset_addr_list;
+} CallNode;
+
+#endif
+
+typedef struct {
+  NodeBase base;
+  int  state;
+  int  back_num;
+  int  back_static[NODE_BACKREFS_SIZE];
+  int* back_dynamic;
+  int  nest_level;
+} BRefNode;
+
+typedef struct {
+  NodeBase base;
+  int type;
+  struct _Node* target;
+  int char_len;
+} AnchorNode;
+
+typedef struct {
+  NodeBase base;
+  struct _Node* car;
+  struct _Node* cdr;
+} ConsAltNode;
+
+typedef struct {
+  NodeBase base;
+  int ctype;
+  int not;
+} CtypeNode;
+
+typedef struct _Node {
+  union {
+    NodeBase     base;
+    StrNode      str;
+    CClassNode   cclass;
+    QtfrNode     qtfr;
+    EncloseNode  enclose;
+    BRefNode     bref;
+    AnchorNode   anchor;
+    ConsAltNode  cons;
+    CtypeNode    ctype;
+#ifdef USE_SUBEXP_CALL
+    CallNode     call;
+#endif
+  } u;
+} Node;
+
+
+#define NULL_NODE  ((Node* )0)
+
+#define SCANENV_MEMNODES_SIZE               8
+#define SCANENV_MEM_NODES(senv)   \
+ (IS_NOT_NULL((senv)->mem_nodes_dynamic) ? \
+    (senv)->mem_nodes_dynamic : (senv)->mem_nodes_static)
+
+typedef struct {
+  OnigOptionType   option;
+  OnigCaseFoldType case_fold_flag;
+  OnigEncoding     enc;
+  const OnigSyntaxType* syntax;
+  BitStatusType    capture_history;
+  BitStatusType    bt_mem_start;
+  BitStatusType    bt_mem_end;
+  BitStatusType    backrefed_mem;
+  UChar*           pattern;
+  UChar*           pattern_end;
+  UChar*           error;
+  UChar*           error_end;
+  regex_t*         reg;       /* for reg->names only */
+  int              num_call;
+#ifdef USE_SUBEXP_CALL
+  UnsetAddrList*   unset_addr_list;
+#endif
+  int              num_mem;
+#ifdef USE_NAMED_GROUP
+  int              num_named;
+#endif
+  int              mem_alloc;
+  Node*            mem_nodes_static[SCANENV_MEMNODES_SIZE];
+  Node**           mem_nodes_dynamic;
+#ifdef USE_COMBINATION_EXPLOSION_CHECK
+  int num_comb_exp_check;
+  int comb_exp_max_regnum;
+  int curr_max_regnum;
+  int has_recursion;
+#endif
+} ScanEnv;
+
+
+#define IS_SYNTAX_OP(syn, opm)    (((syn)->op  & (opm)) != 0)
+#define IS_SYNTAX_OP2(syn, opm)   (((syn)->op2 & (opm)) != 0)
+#define IS_SYNTAX_BV(syn, bvm)    (((syn)->behavior & (bvm)) != 0)
+
+#ifdef USE_NAMED_GROUP
+typedef struct {
+  int new_val;
+} GroupNumRemap;
+
+extern int    onig_renumber_name_table P_((regex_t* reg, GroupNumRemap* map));
+#endif
+
+extern int    onig_strncmp P_((const UChar* s1, const UChar* s2, int n));
+extern void   onig_strcpy P_((UChar* dest, const UChar* src, const UChar* end));
+extern void   onig_scan_env_set_error_string P_((ScanEnv* env, int ecode, UChar* arg, UChar* arg_end));
+extern int    onig_scan_unsigned_number P_((UChar** src, const UChar* end, OnigEncoding enc));
+extern void   onig_reduce_nested_quantifier P_((Node* pnode, Node* cnode));
+extern void   onig_node_conv_to_str_node P_((Node* node, int raw));
+extern int    onig_node_str_cat P_((Node* node, const UChar* s, const UChar* end));
+extern int    onig_node_str_set P_((Node* node, const UChar* s, const UChar* end));
+extern void   onig_node_free P_((Node* node));
+extern Node*  onig_node_new_enclose P_((int type));
+extern Node*  onig_node_new_anchor P_((int type));
+extern Node*  onig_node_new_str P_((const UChar* s, const UChar* end));
+extern Node*  onig_node_new_list P_((Node* left, Node* right));
+extern Node*  onig_node_list_add P_((Node* list, Node* x));
+extern Node*  onig_node_new_alt P_((Node* left, Node* right));
+extern void   onig_node_str_clear P_((Node* node));
+extern int    onig_free_node_list P_((void));
+extern int    onig_names_free P_((regex_t* reg));
+extern int    onig_parse_make_tree P_((Node** root, const UChar* pattern, const UChar* end, regex_t* reg, ScanEnv* env));
+extern int    onig_free_shared_cclass_table P_((void));
+
+#ifdef ONIG_DEBUG
+#ifdef USE_NAMED_GROUP
+extern int onig_print_names(FILE*, regex_t*);
+#endif
+#endif
+
+#endif /* ONIGURUMA_REGPARSE_H */