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-rw-r--r--modules/regex/SCsub47
-rw-r--r--modules/regex/regex.cpp1560
-rw-r--r--modules/regex/regex.h47
3 files changed, 341 insertions, 1313 deletions
diff --git a/modules/regex/SCsub b/modules/regex/SCsub
index 0882406761..0fbdf97620 100644
--- a/modules/regex/SCsub
+++ b/modules/regex/SCsub
@@ -1,7 +1,50 @@
#!/usr/bin/env python
Import('env')
+Import('env_modules')
-env.add_source_files(env.modules_sources, "*.cpp")
+env_regex = env_modules.Clone()
+env_regex.Append(CPPFLAGS=["-DPCRE2_CODE_UNIT_WIDTH=0"])
+env_regex.add_source_files(env.modules_sources, "*.cpp")
-Export('env')
+if (env['builtin_pcre2'] != 'no'):
+ thirdparty_dir = "#thirdparty/pcre2/src/"
+ thirdparty_flags = ["-DPCRE2_STATIC", "-DHAVE_CONFIG_H", "-DSUPPORT_JIT"]
+ thirdparty_sources = [
+ "pcre2_auto_possess.c",
+ "pcre2_chartables.c",
+ "pcre2_compile.c",
+ "pcre2_config.c",
+ "pcre2_context.c",
+ "pcre2_dfa_match.c",
+ "pcre2_error.c",
+ "pcre2_find_bracket.c",
+ "pcre2_jit_compile.c",
+ "pcre2_maketables.c",
+ "pcre2_match.c",
+ "pcre2_match_data.c",
+ "pcre2_newline.c",
+ "pcre2_ord2utf.c",
+ "pcre2_pattern_info.c",
+ "pcre2_serialize.c",
+ "pcre2_string_utils.c",
+ "pcre2_study.c",
+ "pcre2_substitute.c",
+ "pcre2_substring.c",
+ "pcre2_tables.c",
+ "pcre2_ucd.c",
+ "pcre2_valid_utf.c",
+ "pcre2_xclass.c",
+ ]
+ thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
+ env_regex.Append(CPPPATH=[thirdparty_dir])
+ env_regex.Append(CPPFLAGS=thirdparty_flags)
+ def pcre2_builtin(width):
+ env_pcre2 = env_modules.Clone()
+ env_pcre2["OBJSUFFIX"] = "_" + width + env_pcre2["OBJSUFFIX"]
+ env_pcre2.Append(CPPPATH=[thirdparty_dir])
+ env_pcre2.add_source_files(env.modules_sources, thirdparty_sources)
+ env_pcre2.Append(CPPFLAGS=thirdparty_flags)
+ env_pcre2.Append(CPPFLAGS=["-DPCRE2_CODE_UNIT_WIDTH=" + width])
+ pcre2_builtin("16")
+ pcre2_builtin("32")
diff --git a/modules/regex/regex.cpp b/modules/regex/regex.cpp
index de0a6b7e21..8afd01e20b 100644
--- a/modules/regex/regex.cpp
+++ b/modules/regex/regex.cpp
@@ -29,1479 +29,469 @@
/*************************************************************************/
#include "regex.h"
-#include <wchar.h>
-#include <wctype.h>
-
-static int RegEx_hex2int(const CharType c) {
- if ('0' <= c && c <= '9')
- return int(c - '0');
- else if ('a' <= c && c <= 'f')
- return int(c - 'a') + 10;
- else if ('A' <= c && c <= 'F')
- return int(c - 'A') + 10;
- return -1;
-}
-
-struct RegExSearch {
-
- Ref<RegExMatch> match;
- const CharType *str;
- int end;
- int eof;
-
- // For standard quantifier behaviour, test_parent is used to check the
- // rest of the pattern. If the pattern matches, to prevent the parent
- // from testing again, the complete flag is used as a shortcut out.
- bool complete;
-
- // With lookahead, the position needs to rewind to its starting position
- // when test_parent is used. Due to functional programming, this state
- // has to be kept as a parameter.
- Vector<int> lookahead_pos;
-
- CharType at(int p_pos) {
- return str[p_pos];
- }
-
- RegExSearch(Ref<RegExMatch> &p_match, int p_end, int p_lookahead)
- : match(p_match) {
-
- str = p_match->string.c_str();
- end = p_end;
- eof = p_match->string.length();
- complete = false;
- lookahead_pos.resize(p_lookahead);
- }
-};
-
-struct RegExNode {
-
- RegExNode *next;
- RegExNode *previous;
- RegExNode *parent;
- bool quantifiable;
- int length;
-
- RegExNode() {
-
- next = NULL;
- previous = NULL;
- parent = NULL;
- quantifiable = false;
- length = -1;
- }
-
- virtual ~RegExNode() {
-
- if (next)
- memdelete(next);
- }
+#include "core/os/memory.h"
- // For avoiding RTTI
- virtual bool is_look_behind() { return false; }
-
- virtual int test(RegExSearch &s, int pos) const {
-
- return next ? next->test(s, pos) : -1;
- }
-
- virtual int test_parent(RegExSearch &s, int pos) const {
-
- if (next)
- pos = next->test(s, pos);
-
- if (pos >= 0) {
- s.complete = true;
- if (parent)
- pos = parent->test_parent(s, pos);
- }
-
- if (pos < 0)
- s.complete = false;
-
- return pos;
- }
-
- void increment_length(int amount, bool subtract = false) {
-
- if (amount >= 0 && length >= 0) {
- if (!subtract)
- length += amount;
- else
- length -= amount;
- } else {
- length = -1;
- }
+extern "C" {
+#include <pcre2.h>
+}
- if (parent)
- parent->increment_length(amount, subtract);
- }
-};
+static void *_regex_malloc(PCRE2_SIZE size, void *user) {
-struct RegExNodeChar : public RegExNode {
+ return memalloc(size);
+}
- CharType ch;
+static void _regex_free(void *ptr, void *user) {
- RegExNodeChar(CharType p_char) {
+ memfree(ptr);
+}
- length = 1;
- quantifiable = true;
- ch = p_char;
- }
+int RegExMatch::_find(const Variant &p_name) const {
- virtual int test(RegExSearch &s, int pos) const {
+ if (p_name.is_num()) {
- if (s.end <= pos || 0 > pos || s.at(pos) != ch)
+ int i = (int)p_name;
+ if (i >= data.size())
return -1;
+ return i;
- return next ? next->test(s, pos + 1) : pos + 1;
- }
+ } else if (p_name.get_type() == Variant::STRING) {
- static CharType parse_escape(const CharType *&c) {
-
- int point = 0;
- switch (c[1]) {
- case 'x':
- for (int i = 2; i <= 3; ++i) {
- int res = RegEx_hex2int(c[i]);
- if (res == -1)
- return '\0';
- point = (point << 4) + res;
- }
- c = &c[3];
- return CharType(point);
- case 'u':
- for (int i = 2; i <= 5; ++i) {
- int res = RegEx_hex2int(c[i]);
- if (res == -1)
- return '\0';
- point = (point << 4) + res;
- }
- c = &c[5];
- return CharType(point);
- case '0': ++c; return '\0';
- case 'a': ++c; return '\a';
- case 'e': ++c; return '\e';
- case 'f': ++c; return '\f';
- case 'n': ++c; return '\n';
- case 'r': ++c; return '\r';
- case 't': ++c; return '\t';
- case 'v': ++c; return '\v';
- case 'b': ++c; return '\b';
- default: break;
- }
- return (++c)[0];
+ const Map<String, int>::Element *found = names.find((String)p_name);
+ if (found)
+ return found->value();
}
-};
-struct RegExNodeRange : public RegExNode {
+ return -1;
+}
- CharType start;
- CharType end;
+String RegExMatch::get_subject() const {
- RegExNodeRange(CharType p_start, CharType p_end) {
+ return subject;
+}
- length = 1;
- quantifiable = true;
- start = p_start;
- end = p_end;
- }
+int RegExMatch::get_group_count() const {
- virtual int test(RegExSearch &s, int pos) const {
+ if (data.size() == 0)
+ return 0;
+ return data.size() - 1;
+}
- if (s.end <= pos || 0 > pos)
- return -1;
+Dictionary RegExMatch::get_names() const {
- CharType c = s.at(pos);
- if (c < start || end < c)
- return -1;
+ Dictionary result;
- return next ? next->test(s, pos + 1) : pos + 1;
+ for (const Map<String, int>::Element *i = names.front(); i != NULL; i = i->next()) {
+ result[i->key()] = i->value();
}
-};
-
-struct RegExNodeShorthand : public RegExNode {
- CharType repr;
+ return result;
+}
- RegExNodeShorthand(CharType p_repr) {
+Array RegExMatch::get_strings() const {
- length = 1;
- quantifiable = true;
- repr = p_repr;
- }
+ Array result;
- virtual int test(RegExSearch &s, int pos) const {
+ int size = data.size();
- if (s.end <= pos || 0 > pos)
- return -1;
+ for (int i = 0; i < size; i++) {
- bool found = false;
- bool invert = false;
- CharType c = s.at(pos);
- switch (repr) {
- case '.':
- found = true;
- break;
- case 'W':
- invert = true;
- case 'w':
- found = (c == '_' || iswalnum(c) != 0);
- break;
- case 'D':
- invert = true;
- case 'd':
- found = ('0' <= c && c <= '9');
- break;
- case 'S':
- invert = true;
- case 's':
- found = (iswspace(c) != 0);
- break;
- default:
- break;
- }
+ int start = data[i].start;
- if (found == invert)
- return -1;
-
- return next ? next->test(s, pos + 1) : pos + 1;
- }
-};
-
-struct RegExNodeClass : public RegExNode {
-
- enum Type {
- Type_none,
- Type_alnum,
- Type_alpha,
- Type_ascii,
- Type_blank,
- Type_cntrl,
- Type_digit,
- Type_graph,
- Type_lower,
- Type_print,
- Type_punct,
- Type_space,
- Type_upper,
- Type_xdigit,
- Type_word
- };
-
- Type type;
-
- bool test_class(CharType c) const {
-
- static Vector<CharType> REGEX_NODE_SPACE = String(" \t\r\n\f");
- static Vector<CharType> REGEX_NODE_PUNCT = String("!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~");
-
- switch (type) {
- case Type_alnum:
- if ('0' <= c && c <= '9') return true;
- if ('a' <= c && c <= 'z') return true;
- if ('A' <= c && c <= 'Z') return true;
- return false;
- case Type_alpha:
- if ('a' <= c && c <= 'z') return true;
- if ('A' <= c && c <= 'Z') return true;
- return false;
- case Type_ascii:
- return (0x00 <= c && c <= 0x7F);
- case Type_blank:
- return (c == ' ' || c == '\t');
- case Type_cntrl:
- return ((0x00 <= c && c <= 0x1F) || c == 0x7F);
- case Type_digit:
- return ('0' <= c && c <= '9');
- case Type_graph:
- return (0x20 < c && c < 0x7F);
- case Type_lower:
- return ('a' <= c && c <= 'z');
- case Type_print:
- return (0x20 < c && c < 0x7f);
- case Type_punct:
- return (REGEX_NODE_PUNCT.find(c) >= 0);
- case Type_space:
- return (REGEX_NODE_SPACE.find(c) >= 0);
- case Type_upper:
- return ('A' <= c && c <= 'Z');
- case Type_xdigit:
- if ('0' <= c && c <= '9') return true;
- if ('a' <= c && c <= 'f') return true;
- if ('A' <= c && c <= 'F') return true;
- return false;
- case Type_word:
- if ('0' <= c && c <= '9') return true;
- if ('a' <= c && c <= 'z') return true;
- if ('A' <= c && c <= 'Z') return true;
- return (c == '_');
- default:
- return false;
+ if (start == -1) {
+ result.append(String());
+ continue;
}
- return false;
- }
-
- RegExNodeClass(Type p_type) {
-
- length = 1;
- quantifiable = true;
- type = p_type;
- }
-
- virtual int test(RegExSearch &s, int pos) const {
-
- if (s.end <= pos || 0 > pos)
- return -1;
-
- if (!test_class(s.at(pos)))
- return -1;
-
- return next ? next->test(s, pos + 1) : pos + 1;
- }
-
-#define REGEX_CMP_CLASS(POS, NAME) \
- if (cmp_class(POS, #NAME)) return Type_##NAME
-
- static Type parse_type(const CharType *&p_pos) {
-
- REGEX_CMP_CLASS(p_pos, alnum);
- REGEX_CMP_CLASS(p_pos, alpha);
- REGEX_CMP_CLASS(p_pos, ascii);
- REGEX_CMP_CLASS(p_pos, blank);
- REGEX_CMP_CLASS(p_pos, cntrl);
- REGEX_CMP_CLASS(p_pos, digit);
- REGEX_CMP_CLASS(p_pos, graph);
- REGEX_CMP_CLASS(p_pos, lower);
- REGEX_CMP_CLASS(p_pos, print);
- REGEX_CMP_CLASS(p_pos, punct);
- REGEX_CMP_CLASS(p_pos, space);
- REGEX_CMP_CLASS(p_pos, upper);
- REGEX_CMP_CLASS(p_pos, xdigit);
- REGEX_CMP_CLASS(p_pos, word);
- return Type_none;
- }
-
- static bool cmp_class(const CharType *&p_pos, const char *p_text) {
-
- unsigned int i = 0;
- for (i = 0; p_text[i] != '\0'; ++i)
- if (p_pos[i] != p_text[i])
- return false;
-
- if (p_pos[i++] != ':' || p_pos[i] != ']')
- return false;
-
- p_pos = &p_pos[i];
- return true;
- }
-};
-
-struct RegExNodeAnchorStart : public RegExNode {
- RegExNodeAnchorStart() {
+ int length = data[i].end - start;
- length = 0;
+ result.append(subject.substr(start, length));
}
- virtual int test(RegExSearch &s, int pos) const {
+ return result;
+}
- if (pos != 0)
- return -1;
+String RegExMatch::get_string(const Variant &p_name) const {
- return next ? next->test(s, pos) : pos;
- }
-};
+ int id = _find(p_name);
-struct RegExNodeAnchorEnd : public RegExNode {
+ if (id < 0)
+ return String();
- RegExNodeAnchorEnd() {
+ int start = data[id].start;
- length = 0;
- }
+ if (start == -1)
+ return String();
- virtual int test(RegExSearch &s, int pos) const {
+ int length = data[id].end - start;
- if (pos != s.eof)
- return -1;
+ return subject.substr(start, length);
+}
- return next ? next->test(s, pos) : pos;
- }
-};
+int RegExMatch::get_start(const Variant &p_name) const {
-struct RegExNodeWordBoundary : public RegExNode {
+ int id = _find(p_name);
- bool inverse;
+ if (id < 0)
+ return -1;
- RegExNodeWordBoundary(bool p_inverse) {
+ return data[id].start;
+}
- length = 0;
- inverse = p_inverse;
- }
+int RegExMatch::get_end(const Variant &p_name) const {
- virtual int test(RegExSearch &s, int pos) const {
+ int id = _find(p_name);
- bool left = false;
- bool right = false;
+ if (id < 0)
+ return -1;
- if (pos != 0) {
- CharType c = s.at(pos - 1);
- if (c == '_' || iswalnum(c))
- left = true;
- }
+ return data[id].end;
+}
- if (pos != s.eof) {
- CharType c = s.at(pos);
- if (c == '_' || iswalnum(c))
- right = true;
- }
+void RegExMatch::_bind_methods() {
- if ((left == right) != inverse)
- return -1;
+ ClassDB::bind_method(D_METHOD("get_subject"), &RegExMatch::get_subject);
+ ClassDB::bind_method(D_METHOD("get_group_count"), &RegExMatch::get_group_count);
+ ClassDB::bind_method(D_METHOD("get_names"), &RegExMatch::get_names);
+ ClassDB::bind_method(D_METHOD("get_strings"), &RegExMatch::get_strings);
+ ClassDB::bind_method(D_METHOD("get_string", "name"), &RegExMatch::get_string, DEFVAL(0));
+ ClassDB::bind_method(D_METHOD("get_start", "name"), &RegExMatch::get_start, DEFVAL(0));
+ ClassDB::bind_method(D_METHOD("get_end", "name"), &RegExMatch::get_end, DEFVAL(0));
+}
- return next ? next->test(s, pos) : pos;
- }
-};
+void RegEx::_pattern_info(uint32_t what, void *where) const {
-struct RegExNodeQuantifier : public RegExNode {
+ if (sizeof(CharType) == 2) {
- int min;
- int max;
- bool greedy;
- RegExNode *child;
+ pcre2_pattern_info_16((pcre2_code_16 *)code, what, where);
- RegExNodeQuantifier(int p_min, int p_max) {
+ } else {
- min = p_min;
- max = p_max;
- greedy = true;
- child = NULL;
+ pcre2_pattern_info_32((pcre2_code_32 *)code, what, where);
}
+}
- ~RegExNodeQuantifier() {
-
- if (child)
- memdelete(child);
- }
+void RegEx::clear() {
- virtual int test(RegExSearch &s, int pos) const {
+ if (sizeof(CharType) == 2) {
- return test_step(s, pos, 0, pos);
- }
+ if (code)
+ pcre2_code_free_16((pcre2_code_16 *)code);
- virtual int test_parent(RegExSearch &s, int pos) const {
+ } else {
- s.complete = false;
- return pos;
+ if (code)
+ pcre2_code_free_32((pcre2_code_32 *)code);
}
+}
- int test_step(RegExSearch &s, int pos, int level, int start) const {
-
- if (pos > s.end)
- return -1;
-
- if (!greedy && level > min) {
- int res = next ? next->test(s, pos) : pos;
- if (s.complete)
- return res;
-
- if (res >= 0 && parent->test_parent(s, res) >= 0)
- return res;
- }
-
- if (max >= 0 && level > max)
- return -1;
+Error RegEx::compile(const String &p_pattern) {
- int res = pos;
- if (level >= 1) {
- if (level > min + 1 && pos == start)
- return -1;
+ pattern = p_pattern;
+ clear();
- res = child->test(s, pos);
- if (s.complete)
- return res;
- }
+ int err;
+ PCRE2_SIZE offset;
+ uint32_t flags = PCRE2_DUPNAMES;
- if (res >= 0) {
+ if (sizeof(CharType) == 2) {
- int res_step = test_step(s, res, level + 1, start);
- if (res_step >= 0)
- return res_step;
+ pcre2_general_context_16 *gctx = (pcre2_general_context_16 *)general_ctx;
+ pcre2_compile_context_16 *cctx = pcre2_compile_context_create_16(gctx);
+ PCRE2_SPTR16 p = (PCRE2_SPTR16)pattern.c_str();
- if (greedy && level >= min) {
- if (next)
- res = next->test(s, res);
- if (s.complete)
- return res;
+ code = pcre2_compile_16(p, pattern.length(), flags, &err, &offset, cctx);
- if (res >= 0 && parent->test_parent(s, res) >= 0)
- return res;
- }
+ if (!code) {
+ PCRE2_UCHAR16 buf[256];
+ pcre2_get_error_message_16(err, buf, 256);
+ String message = String::num(offset) + ": " + String((const CharType *)buf);
+ ERR_PRINT(message.utf8());
+ return FAILED;
}
- return -1;
- }
-};
-
-struct RegExNodeBackReference : public RegExNode {
- int id;
+ } else {
- RegExNodeBackReference(int p_id) {
-
- length = -1;
- quantifiable = true;
- id = p_id;
- }
+ pcre2_general_context_32 *gctx = (pcre2_general_context_32 *)general_ctx;
+ pcre2_compile_context_32 *cctx = pcre2_compile_context_create_32(gctx);
+ PCRE2_SPTR32 p = (PCRE2_SPTR32)pattern.c_str();
- virtual int test(RegExSearch &s, int pos) const {
+ code = pcre2_compile_32(p, pattern.length(), flags, &err, &offset, cctx);
- RegExMatch::Group &ref = s.match->captures[id];
- for (int i = 0; i < ref.length; ++i) {
-
- if (pos + i >= s.end)
- return -1;
-
- if (s.at(ref.start + i) != s.at(pos + i))
- return -1;
+ if (!code) {
+ PCRE2_UCHAR32 buf[256];
+ pcre2_get_error_message_32(err, buf, 256);
+ String message = String::num(offset) + ": " + String((const CharType *)buf);
+ ERR_PRINT(message.utf8());
+ return FAILED;
}
- return next ? next->test(s, pos + ref.length) : pos + ref.length;
}
-};
-
-struct RegExNodeGroup : public RegExNode {
-
- bool inverse;
- bool reset_pos;
- Vector<RegExNode *> childset;
- RegExNode *back;
-
- RegExNodeGroup() {
-
- length = 0;
- quantifiable = true;
- inverse = false;
- reset_pos = false;
- back = NULL;
- }
-
- virtual ~RegExNodeGroup() {
-
- for (int i = 0; i < childset.size(); ++i)
- memdelete(childset[i]);
- }
-
- virtual void test_success(RegExSearch &s, int pos) const {
+ return OK;
+}
- return;
- }
+Ref<RegExMatch> RegEx::search(const String &p_subject, int p_offset, int p_end) const {
- virtual int test(RegExSearch &s, int pos) const {
+ ERR_FAIL_COND_V(!is_valid(), NULL);
- for (int i = 0; i < childset.size(); ++i) {
+ Ref<RegExMatch> result = memnew(RegExMatch);
- s.complete = false;
+ int length = p_subject.length();
+ if (p_end >= 0 && p_end < length)
+ length = p_end;
- int res = childset[i]->test(s, pos);
+ if (sizeof(CharType) == 2) {
- if (inverse) {
- s.complete = false;
- if (res < 0)
- res = pos + 1;
- else
- return -1;
+ pcre2_code_16 *c = (pcre2_code_16 *)code;
+ pcre2_general_context_16 *gctx = (pcre2_general_context_16 *)general_ctx;
+ pcre2_match_context_16 *mctx = pcre2_match_context_create_16(gctx);
+ PCRE2_SPTR16 s = (PCRE2_SPTR16)p_subject.c_str();
- if (i + 1 < childset.size())
- continue;
- }
+ pcre2_match_data_16 *match = pcre2_match_data_create_from_pattern_16(c, gctx);
- if (s.complete)
- return res;
+ int res = pcre2_match_16(c, s, length, p_offset, 0, match, mctx);
- if (res >= 0) {
- if (reset_pos)
- res = pos;
- this->test_success(s, res);
- return next ? next->test(s, res) : res;
- }
+ if (res < 0) {
+ pcre2_match_data_free_16(match);
+ return NULL;
}
- return -1;
- }
-
- void add_child(RegExNode *node) {
- node->parent = this;
- node->previous = back;
+ uint32_t size = pcre2_get_ovector_count_16(match);
+ PCRE2_SIZE *ovector = pcre2_get_ovector_pointer_16(match);
- if (back)
- back->next = node;
- else
- childset.push_back(node);
+ result->data.resize(size);
- increment_length(node->length);
+ for (uint32_t i = 0; i < size; i++) {
- back = node;
- }
-
- void add_childset() {
-
- if (childset.size() > 0)
- length = -1;
- back = NULL;
- }
-
- RegExNode *swap_back(RegExNode *node) {
-
- RegExNode *old = back;
-
- if (old) {
- if (!old->previous)
- childset.remove(childset.size() - 1);
- back = old->previous;
- increment_length(old->length, true);
+ result->data[i].start = ovector[i * 2];
+ result->data[i].end = ovector[i * 2 + 1];
}
- add_child(node);
+ pcre2_match_data_free_16(match);
+ pcre2_match_context_free_16(mctx);
- return old;
- }
-};
+ } else {
-struct RegExNodeCapturing : public RegExNodeGroup {
+ pcre2_code_32 *c = (pcre2_code_32 *)code;
+ pcre2_general_context_32 *gctx = (pcre2_general_context_32 *)general_ctx;
+ pcre2_match_context_32 *mctx = pcre2_match_context_create_32(gctx);
+ PCRE2_SPTR32 s = (PCRE2_SPTR32)p_subject.c_str();
- int id;
+ pcre2_match_data_32 *match = pcre2_match_data_create_from_pattern_32(c, gctx);
- RegExNodeCapturing(int p_id = 0) {
+ int res = pcre2_match_32(c, s, length, p_offset, 0, match, mctx);
- id = p_id;
- }
-
- virtual void test_success(RegExSearch &s, int pos) const {
-
- RegExMatch::Group &ref = s.match->captures[id];
- ref.length = pos - ref.start;
- }
-
- virtual int test(RegExSearch &s, int pos) const {
-
- RegExMatch::Group &ref = s.match->captures[id];
- int old_start = ref.start;
- ref.start = pos;
-
- int res = RegExNodeGroup::test(s, pos);
-
- if (res < 0)
- ref.start = old_start;
- return res;
- }
-
- virtual int test_parent(RegExSearch &s, int pos) const {
-
- RegExMatch::Group &ref = s.match->captures[id];
- ref.length = pos - ref.start;
- return RegExNode::test_parent(s, pos);
- }
-
- static Variant parse_name(const CharType *&c, bool p_allow_numeric) {
-
- if (c[1] == '0') {
- return -1;
- } else if ('1' <= c[1] && c[1] <= '9') {
- if (!p_allow_numeric)
- return -1;
- int res = (++c)[0] - '0';
- while ('0' <= c[1] && c[1] <= '9')
- res = res * 10 + int((++c)[0] - '0');
- if ((++c)[0] != '>')
- return -1;
- return res;
- } else if (iswalnum(c[1])) {
- String res(++c, 1);
- while (iswalnum(c[1]))
- res += String(++c, 1);
- if ((++c)[0] != '>')
- return -1;
- return res;
+ if (res < 0) {
+ pcre2_match_data_free_32(match);
+ return NULL;
}
- return -1;
- }
-};
-
-struct RegExNodeLookAhead : public RegExNodeGroup {
-
- int id;
- RegExNodeLookAhead(bool p_inverse, int p_id = 0) {
+ uint32_t size = pcre2_get_ovector_count_32(match);
+ PCRE2_SIZE *ovector = pcre2_get_ovector_pointer_32(match);
- quantifiable = false;
- inverse = p_inverse;
- reset_pos = true;
- id = p_id;
- }
-
- virtual int test(RegExSearch &s, int pos) const {
+ result->data.resize(size);
- s.lookahead_pos[id] = pos;
- return RegExNodeGroup::test(s, pos);
- }
+ for (uint32_t i = 0; i < size; i++) {
- virtual int test_parent(RegExSearch &s, int pos) const {
+ result->data[i].start = ovector[i * 2];
+ result->data[i].end = ovector[i * 2 + 1];
+ }
- return RegExNode::test_parent(s, s.lookahead_pos[id]);
+ pcre2_match_data_free_32(match);
+ pcre2_match_context_free_32(mctx);
}
-};
-struct RegExNodeLookBehind : public RegExNodeGroup {
+ result->subject = p_subject;
- RegExNodeLookBehind(bool p_inverse, int p_id = 0) {
+ uint32_t count;
+ const CharType *table;
+ uint32_t entry_size;
- quantifiable = false;
- inverse = p_inverse;
- reset_pos = true;
- }
+ _pattern_info(PCRE2_INFO_NAMECOUNT, &count);
+ _pattern_info(PCRE2_INFO_NAMETABLE, &table);
+ _pattern_info(PCRE2_INFO_NAMEENTRYSIZE, &entry_size);
- virtual bool is_look_behind() { return true; }
+ for (int i = 0; i < count; i++) {
- virtual int test(RegExSearch &s, int pos) const {
+ CharType id = table[i * entry_size];
+ if (result->data[id].start == -1)
+ continue;
+ String name = &table[i * entry_size + 1];
+ if (result->names.has(name))
+ continue;
- if (pos < length)
- return -1;
- return RegExNodeGroup::test(s, pos - length);
+ result->names.insert(name, id);
}
-};
-struct RegExNodeBracket : public RegExNode {
+ return result;
+}
- bool inverse;
- Vector<RegExNode *> children;
+String RegEx::sub(const String &p_subject, const String &p_replacement, bool p_all, int p_offset, int p_end) const {
- RegExNodeBracket() {
+ ERR_FAIL_COND_V(!is_valid(), String());
- length = 1;
- quantifiable = true;
- inverse = false;
- }
+ String output;
+ output.resize(p_subject.length());
- virtual ~RegExNodeBracket() {
+ uint32_t flags = PCRE2_SUBSTITUTE_OVERFLOW_LENGTH;
+ if (p_all)
+ flags |= PCRE2_SUBSTITUTE_GLOBAL;
- for (int i = 0; i < children.size(); ++i)
- memdelete(children[i]);
- }
+ PCRE2_SIZE olength = output.length();
- virtual int test(RegExSearch &s, int pos) const {
+ PCRE2_SIZE length = p_subject.length();
+ if (p_end >= 0 && p_end < length)
+ length = p_end;
- for (int i = 0; i < children.size(); ++i) {
+ if (sizeof(CharType) == 2) {
- int res = children[i]->test(s, pos);
+ pcre2_code_16 *c = (pcre2_code_16 *)code;
+ pcre2_general_context_16 *gctx = (pcre2_general_context_16 *)general_ctx;
+ pcre2_match_context_16 *mctx = pcre2_match_context_create_16(gctx);
+ PCRE2_SPTR16 s = (PCRE2_SPTR16)p_subject.c_str();
+ PCRE2_SPTR16 r = (PCRE2_SPTR16)p_replacement.c_str();
+ PCRE2_UCHAR16 *o = (PCRE2_UCHAR16 *)output.c_str();
- if (inverse) {
- if (res < 0)
- res = pos + 1;
- else
- return -1;
+ pcre2_match_data_16 *match = pcre2_match_data_create_from_pattern_16(c, gctx);
- if (i + 1 < children.size())
- continue;
- }
+ int res = pcre2_substitute_16(c, s, length, p_offset, flags, match, mctx, r, p_replacement.length(), o, &olength);
- if (res >= 0)
- return next ? next->test(s, res) : res;
+ if (res == PCRE2_ERROR_NOMEMORY) {
+ output.resize(olength);
+ o = (PCRE2_UCHAR16 *)output.c_str();
+ res = pcre2_substitute_16(c, s, length, p_offset, flags, match, mctx, r, p_replacement.length(), o, &olength);
}
- return -1;
- }
- void add_child(RegExNode *node) {
-
- node->parent = this;
- children.push_back(node);
- }
+ pcre2_match_data_free_16(match);
+ pcre2_match_context_free_16(mctx);
- void pop_back() {
-
- memdelete(children[children.size() - 1]);
- children.remove(children.size() - 1);
- }
-};
-
-#define REGEX_EXPAND_FAIL(MSG) \
- { \
- ERR_PRINT(MSG); \
- return String(); \
- }
-
-String RegExMatch::expand(const String &p_template) const {
-
- String res;
- for (const CharType *c = p_template.c_str(); *c != '\0'; ++c) {
- if (c[0] == '\\') {
- if (('1' <= c[1] && c[1] <= '9') || (c[1] == 'g' && c[2] == '{')) {
-
- int ref = 0;
- bool unclosed = false;
-
- if (c[1] == 'g') {
- unclosed = true;
- c = &c[2];
- }
-
- while ('0' <= c[1] && c[1] <= '9') {
- ref = ref * 10 + int(c[1] - '0');
- ++c;
- }
-
- if (unclosed) {
- if (c[1] != '}')
- REGEX_EXPAND_FAIL("unclosed backreference '{'");
- ++c;
- }
-
- res += get_string(ref);
-
- } else if (c[1] == 'g' && c[2] == '<') {
-
- const CharType *d = &c[2];
+ if (res < 0)
+ return String();
- Variant name = RegExNodeCapturing::parse_name(d, true);
- if (name == Variant(-1))
- REGEX_EXPAND_FAIL("unrecognised character for group name");
+ } else {
- c = d;
+ pcre2_code_32 *c = (pcre2_code_32 *)code;
+ pcre2_general_context_32 *gctx = (pcre2_general_context_32 *)general_ctx;
+ pcre2_match_context_32 *mctx = pcre2_match_context_create_32(gctx);
+ PCRE2_SPTR32 s = (PCRE2_SPTR32)p_subject.c_str();
+ PCRE2_SPTR32 r = (PCRE2_SPTR32)p_replacement.c_str();
+ PCRE2_UCHAR32 *o = (PCRE2_UCHAR32 *)output.c_str();
- res += get_string(name);
+ pcre2_match_data_32 *match = pcre2_match_data_create_from_pattern_32(c, gctx);
- } else {
+ int res = pcre2_substitute_32(c, s, length, p_offset, flags, match, mctx, r, p_replacement.length(), o, &olength);
- const CharType *d = c;
- CharType ch = RegExNodeChar::parse_escape(d);
- if (c == d)
- REGEX_EXPAND_FAIL("invalid escape token");
- res += String(&ch, 1);
- c = d;
- }
- } else {
- res += String(c, 1);
+ if (res == PCRE2_ERROR_NOMEMORY) {
+ output.resize(olength);
+ o = (PCRE2_UCHAR32 *)output.c_str();
+ res = pcre2_substitute_32(c, s, length, p_offset, flags, match, mctx, r, p_replacement.length(), o, &olength);
}
- }
- return res;
-}
-int RegExMatch::get_group_count() const {
+ pcre2_match_data_free_32(match);
+ pcre2_match_context_free_32(mctx);
- int count = 0;
- for (int i = 1; i < captures.size(); ++i)
- if (captures[i].name.get_type() == Variant::INT)
- ++count;
- return count;
-}
-
-Array RegExMatch::get_group_array() const {
-
- Array res;
- for (int i = 1; i < captures.size(); ++i) {
- const RegExMatch::Group &capture = captures[i];
- if (capture.name.get_type() != Variant::INT)
- continue;
-
- if (capture.start >= 0)
- res.push_back(string.substr(capture.start, capture.length));
- else
- res.push_back(String());
- }
- return res;
-}
-
-Array RegExMatch::get_names() const {
-
- Array res;
- for (int i = 1; i < captures.size(); ++i)
- if (captures[i].name.get_type() == Variant::STRING)
- res.push_back(captures[i].name);
- return res;
-}
-
-Dictionary RegExMatch::get_name_dict() const {
-
- Dictionary res;
- for (int i = 1; i < captures.size(); ++i) {
- const RegExMatch::Group &capture = captures[i];
- if (capture.name.get_type() != Variant::STRING)
- continue;
-
- if (capture.start >= 0)
- res[capture.name] = string.substr(capture.start, capture.length);
- else
- res[capture.name] = String();
- }
- return res;
-}
-
-String RegExMatch::get_string(const Variant &p_name) const {
-
- for (int i = 0; i < captures.size(); ++i) {
-
- const RegExMatch::Group &capture = captures[i];
-
- if (capture.name != p_name)
- continue;
-
- if (capture.start == -1)
+ if (res < 0)
return String();
-
- return string.substr(capture.start, capture.length);
}
- return String();
-}
-
-int RegExMatch::get_start(const Variant &p_name) const {
- for (int i = 0; i < captures.size(); ++i)
- if (captures[i].name == p_name)
- return captures[i].start;
- return -1;
+ return output;
}
-int RegExMatch::get_end(const Variant &p_name) const {
+bool RegEx::is_valid() const {
- for (int i = 0; i < captures.size(); ++i)
- if (captures[i].name == p_name)
- return captures[i].start + captures[i].length;
- return -1;
+ return (code != NULL);
}
-RegExMatch::RegExMatch() {
-}
+String RegEx::get_pattern() const {
-static bool RegEx_is_shorthand(CharType ch) {
-
- switch (ch) {
- case 'w':
- case 'W':
- case 'd':
- case 'D':
- case 's':
- case 'S':
- return true;
- default:
- break;
- }
- return false;
+ return pattern;
}
-#define REGEX_COMPILE_FAIL(MSG) \
- { \
- ERR_PRINT(MSG); \
- clear(); \
- return FAILED; \
- }
+int RegEx::get_group_count() const {
-Error RegEx::compile(const String &p_pattern) {
+ ERR_FAIL_COND_V(!is_valid(), 0);
- ERR_FAIL_COND_V(p_pattern.length() == 0, FAILED);
+ uint32_t count;
- if (pattern == p_pattern && root)
- return OK;
+ _pattern_info(PCRE2_INFO_CAPTURECOUNT, &count);
- clear();
- pattern = p_pattern;
- group_names.push_back(0);
- RegExNodeGroup *root_group = memnew(RegExNodeCapturing(0));
- root = root_group;
- Vector<RegExNodeGroup *> stack;
- stack.push_back(root_group);
- int lookahead_level = 0;
- int numeric_groups = 0;
- const int numeric_max = 9;
-
- for (const CharType *c = p_pattern.c_str(); *c != '\0'; ++c) {
-
- switch (c[0]) {
- case '(':
- if (c[1] == '?') {
-
- RegExNodeGroup *group = NULL;
- switch (c[2]) {
- case ':':
- c = &c[2];
- group = memnew(RegExNodeGroup());
- break;
- case '!':
- case '=':
- group = memnew(RegExNodeLookAhead((c[2] == '!'), lookahead_level++));
- if (lookahead_depth < lookahead_level)
- lookahead_depth = lookahead_level;
- c = &c[2];
- break;
- case '<':
- if (c[3] == '!' || c[3] == '=') {
- group = memnew(RegExNodeLookBehind((c[3] == '!'), lookahead_level++));
- c = &c[3];
- }
- break;
- case 'P':
- if (c[3] == '<') {
- const CharType *d = &c[3];
- Variant name = RegExNodeCapturing::parse_name(d, false);
- if (name == Variant(-1))
- REGEX_COMPILE_FAIL("unrecognised character for group name");
- group = memnew(RegExNodeCapturing(group_names.size()));
- group_names.push_back(name);
- c = d;
- }
- default:
- break;
- }
- if (!group)
- REGEX_COMPILE_FAIL("unrecognised qualifier for group");
- stack[0]->add_child(group);
- stack.insert(0, group);
-
- } else if (numeric_groups < numeric_max) {
-
- RegExNodeCapturing *group = memnew(RegExNodeCapturing(group_names.size()));
- group_names.push_back(++numeric_groups);
- stack[0]->add_child(group);
- stack.insert(0, group);
-
- } else {
-
- RegExNodeGroup *group = memnew(RegExNodeGroup());
- stack[0]->add_child(group);
- stack.insert(0, group);
- }
- break;
- case ')':
- if (stack.size() == 1)
- REGEX_COMPILE_FAIL("unexpected ')'");
- stack.remove(0);
- break;
- case '\\':
- if (('1' <= c[1] && c[1] <= '9') || (c[1] == 'g' && c[2] == '{')) {
-
- int ref = 0;
- bool unclosed = false;
-
- if (c[1] == 'g') {
- unclosed = true;
- c = &c[2];
- }
-
- while ('0' <= c[1] && c[1] <= '9') {
- ref = ref * 10 + int(c[1] - '0');
- ++c;
- }
-
- if (unclosed) {
- if (c[1] != '}')
- REGEX_COMPILE_FAIL("unclosed backreference '{'");
- ++c;
- }
-
- if (ref > numeric_groups || ref <= 0)
- REGEX_COMPILE_FAIL("backreference not found");
-
- for (int i = 0; i < stack.size(); ++i)
- if (stack[i]->is_look_behind())
- REGEX_COMPILE_FAIL("backreferences inside lookbehind not supported");
-
- for (int i = 0; i < group_names.size(); ++i) {
- if (group_names[i].get_type() == Variant::INT && int(group_names[i]) == ref) {
- ref = group_names[i];
- break;
- }
- }
-
- stack[0]->add_child(memnew(RegExNodeBackReference(ref)));
- }
- if (c[1] == 'g' && c[2] == '<') {
-
- const CharType *d = &c[2];
-
- Variant name = RegExNodeCapturing::parse_name(d, true);
- if (name == Variant(-1))
- REGEX_COMPILE_FAIL("unrecognised character for group name");
-
- c = d;
-
- for (int i = 0; i < stack.size(); ++i)
- if (stack[i]->is_look_behind())
- REGEX_COMPILE_FAIL("backreferences inside lookbehind not supported");
-
- int ref = -1;
-
- for (int i = 0; i < group_names.size(); ++i) {
- if (group_names[i].get_type() == Variant::INT && int(group_names[i]) == ref) {
- ref = group_names[i];
- break;
- }
- }
-
- if (ref == -1)
- REGEX_COMPILE_FAIL("backreference not found");
-
- stack[0]->add_child(memnew(RegExNodeBackReference(ref)));
-
- } else if (c[1] == 'b' || c[1] == 'B') {
-
- stack[0]->add_child(memnew(RegExNodeWordBoundary(*(++c) == 'B')));
-
- } else if (RegEx_is_shorthand(c[1])) {
-
- stack[0]->add_child(memnew(RegExNodeShorthand(*(++c))));
-
- } else {
-
- const CharType *d = c;
- CharType ch = RegExNodeChar::parse_escape(d);
- if (c == d)
- REGEX_COMPILE_FAIL("invalid escape token");
- stack[0]->add_child(memnew(RegExNodeChar(ch)));
- c = d;
- }
- break;
- case '[': {
- RegExNodeBracket *bracket = memnew(RegExNodeBracket());
- stack[0]->add_child(bracket);
- if (c[1] == '^') {
- bracket->inverse = true;
- ++c;
- }
- bool first_child = true;
- CharType previous_child;
- bool previous_child_single = false;
- while (true) {
- ++c;
- if (!first_child && c[0] == ']') {
-
- break;
-
- } else if (c[0] == '\0') {
-
- REGEX_COMPILE_FAIL("unclosed bracket expression '['");
-
- } else if (c[0] == '\\') {
-
- if (RegEx_is_shorthand(c[1])) {
- bracket->add_child(memnew(RegExNodeShorthand(*(++c))));
- } else {
- const CharType *d = c;
- CharType ch = RegExNodeChar::parse_escape(d);
- if (c == d)
- REGEX_COMPILE_FAIL("invalid escape token");
- bracket->add_child(memnew(RegExNodeChar(ch)));
- c = d;
- previous_child = ch;
- previous_child_single = true;
- }
-
- } else if (c[0] == ']' && c[1] == ':') {
-
- const CharType *d = &c[2];
- RegExNodeClass::Type type = RegExNodeClass::parse_type(d);
- if (type != RegExNodeClass::Type_none) {
-
- c = d;
- previous_child_single = false;
-
- } else {
-
- bracket->add_child(memnew(RegExNodeChar('[')));
- previous_child = '[';
- previous_child_single = true;
- }
- } else if (previous_child_single && c[0] == '-') {
-
- if (c[1] != '\0' && c[1] != ']') {
-
- CharType next;
-
- if (c[1] == '\\') {
- const CharType *d = ++c;
- next = RegExNodeChar::parse_escape(d);
- if (c == d)
- REGEX_COMPILE_FAIL("invalid escape token");
- } else {
- next = *(++c);
- }
-
- if (next < previous_child)
- REGEX_COMPILE_FAIL("text range out of order");
-
- bracket->pop_back();
- bracket->add_child(memnew(RegExNodeRange(previous_child, next)));
- previous_child_single = false;
- } else {
-
- bracket->add_child(memnew(RegExNodeChar('-')));
- previous_child = '-';
- previous_child_single = true;
- }
- } else {
-
- bracket->add_child(memnew(RegExNodeChar(c[0])));
- previous_child = c[0];
- previous_child_single = true;
- }
- first_child = false;
- }
- } break;
- case '|':
- for (int i = 0; i < stack.size(); ++i)
- if (stack[i]->is_look_behind())
- REGEX_COMPILE_FAIL("alternations inside lookbehind not supported");
- stack[0]->add_childset();
- break;
- case '^':
- stack[0]->add_child(memnew(RegExNodeAnchorStart()));
- break;
- case '$':
- stack[0]->add_child(memnew(RegExNodeAnchorEnd()));
- break;
- case '.':
- stack[0]->add_child(memnew(RegExNodeShorthand('.')));
- break;
- case '?':
- case '*':
- case '+':
- case '{': {
- int min_val = 0;
- int max_val = -1;
- bool valid = true;
- const CharType *d = c;
- bool max_set = true;
- switch (c[0]) {
- case '?':
- min_val = 0;
- max_val = 1;
- break;
- case '*':
- min_val = 0;
- max_val = -1;
- break;
- case '+':
- min_val = 1;
- max_val = -1;
- break;
- case '{':
- max_set = false;
- while (valid) {
- ++d;
- if (d[0] == '}') {
- break;
- } else if (d[0] == ',') {
- max_set = true;
- } else if ('0' <= d[0] && d[0] <= '9') {
- if (max_set) {
- if (max_val < 0)
- max_val = int(d[0] - '0');
- else
- max_val = max_val * 10 + int(d[0] - '0');
- } else {
- min_val = min_val * 10 + int(d[0] - '0');
- }
- } else {
- valid = false;
- }
- }
- break;
- default:
- break;
- }
-
- if (!max_set)
- max_val = min_val;
-
- if (valid) {
-
- c = d;
-
- if (stack[0]->back == NULL || !stack[0]->back->quantifiable)
- REGEX_COMPILE_FAIL("element not quantifiable");
-
- if (min_val != max_val)
- for (int i = 0; i < stack.size(); ++i)
- if (stack[i]->is_look_behind())
- REGEX_COMPILE_FAIL("variable length quantifiers inside lookbehind not supported");
-
- RegExNodeQuantifier *quant = memnew(RegExNodeQuantifier(min_val, max_val));
- quant->child = stack[0]->swap_back(quant);
- quant->child->previous = NULL;
- quant->child->parent = quant;
-
- if (min_val == max_val && quant->child->length >= 0)
- quant->length = max_val * quant->child->length;
-
- if (c[1] == '?') {
- quant->greedy = false;
- ++c;
- }
- break;
- }
- }
- default:
- stack[0]->add_child(memnew(RegExNodeChar(c[0])));
- break;
- }
- }
- if (stack.size() > 1)
- REGEX_COMPILE_FAIL("unclosed group '('");
- return OK;
+ return count;
}
-Ref<RegExMatch> RegEx::search(const String &p_text, int p_start, int p_end) const {
-
- ERR_FAIL_COND_V(!is_valid(), NULL);
- ERR_FAIL_COND_V(p_start < 0, NULL);
- ERR_FAIL_COND_V(p_start >= p_text.length(), NULL);
- ERR_FAIL_COND_V(p_end > p_text.length(), NULL);
- ERR_FAIL_COND_V(p_end != -1 && p_end < p_start, NULL);
+Array RegEx::get_names() const {
- Ref<RegExMatch> res = memnew(RegExMatch());
+ Array result;
- for (int i = 0; i < group_names.size(); ++i) {
- RegExMatch::Group group;
- group.name = group_names[i];
- res->captures.push_back(group);
- }
+ ERR_FAIL_COND_V(!is_valid(), result);
- res->string = p_text;
+ uint32_t count;
+ const CharType *table;
+ uint32_t entry_size;
- if (p_end == -1)
- p_end = p_text.length();
+ _pattern_info(PCRE2_INFO_NAMECOUNT, &count);
+ _pattern_info(PCRE2_INFO_NAMETABLE, &table);
+ _pattern_info(PCRE2_INFO_NAMEENTRYSIZE, &entry_size);
- RegExSearch s(res, p_end, lookahead_depth);
+ for (int i = 0; i < count; i++) {
- for (int i = p_start; i <= s.end; ++i) {
- for (int c = 0; c < group_names.size(); ++c) {
- res->captures[c].start = -1;
- res->captures[c].length = 0;
+ String name = &table[i * entry_size + 1];
+ if (result.find(name) < 0) {
+ result.append(name);
}
- if (root->test(s, i) >= 0)
- break;
}
- if (res->captures[0].start >= 0)
- return res;
- return NULL;
+ return result;
}
-String RegEx::sub(const String &p_text, const String &p_replacement, bool p_all, int p_start, int p_end) const {
-
- ERR_FAIL_COND_V(!is_valid(), p_text);
- ERR_FAIL_COND_V(p_start < 0, p_text);
- ERR_FAIL_COND_V(p_start >= p_text.length(), p_text);
- ERR_FAIL_COND_V(p_end > p_text.length(), p_text);
- ERR_FAIL_COND_V(p_end != -1 && p_end < p_start, p_text);
-
- String text = p_text;
- int start = p_start;
-
- if (p_end == -1)
- p_end = p_text.length();
-
- while (start < text.length() && (p_all || start == p_start)) {
-
- Ref<RegExMatch> m = search(text, start, p_end);
-
- RegExMatch::Group &s = m->captures[0];
-
- if (s.start < 0)
- break;
-
- String res = text.substr(0, s.start) + m->expand(p_replacement);
-
- start = res.length();
+RegEx::RegEx() {
- if (s.length == 0)
- ++start;
+ if (sizeof(CharType) == 2) {
- int sub_end = s.start + s.length;
- if (sub_end < text.length())
- res += text.substr(sub_end, text.length() - sub_end);
+ general_ctx = pcre2_general_context_create_16(&_regex_malloc, &_regex_free, NULL);
- p_end += res.length() - text.length();
+ } else {
- text = res;
+ general_ctx = pcre2_general_context_create_32(&_regex_malloc, &_regex_free, NULL);
}
- return text;
+ code = NULL;
}
-void RegEx::clear() {
-
- if (root)
- memdelete(root);
-
- root = NULL;
- group_names.clear();
- lookahead_depth = 0;
-}
-
-bool RegEx::is_valid() const {
-
- return (root != NULL);
-}
-
-String RegEx::get_pattern() const {
-
- return pattern;
-}
-
-int RegEx::get_group_count() const {
-
- int count = 0;
- for (int i = 1; i < group_names.size(); ++i)
- if (group_names[i].get_type() == Variant::INT)
- ++count;
- return count;
-}
-
-Array RegEx::get_names() const {
+RegEx::RegEx(const String &p_pattern) {
- Array res;
- for (int i = 1; i < group_names.size(); ++i)
- if (group_names[i].get_type() == Variant::STRING)
- res.push_back(group_names[i]);
- return res;
-}
+ if (sizeof(CharType) == 2) {
-RegEx::RegEx() {
+ general_ctx = pcre2_general_context_create_16(&_regex_malloc, &_regex_free, NULL);
- root = NULL;
- lookahead_depth = 0;
-}
+ } else {
-RegEx::RegEx(const String &p_pattern) {
-
- root = NULL;
+ general_ctx = pcre2_general_context_create_32(&_regex_malloc, &_regex_free, NULL);
+ }
+ code = NULL;
compile(p_pattern);
}
RegEx::~RegEx() {
- if (root)
- memdelete(root);
-}
+ if (sizeof(CharType) == 2) {
-void RegExMatch::_bind_methods() {
+ if (code)
+ pcre2_code_free_16((pcre2_code_16 *)code);
+ pcre2_general_context_free_16((pcre2_general_context_16 *)general_ctx);
- ClassDB::bind_method(D_METHOD("expand", "template"), &RegExMatch::expand);
- ClassDB::bind_method(D_METHOD("get_group_count"), &RegExMatch::get_group_count);
- ClassDB::bind_method(D_METHOD("get_group_array"), &RegExMatch::get_group_array);
- ClassDB::bind_method(D_METHOD("get_names"), &RegExMatch::get_names);
- ClassDB::bind_method(D_METHOD("get_name_dict"), &RegExMatch::get_name_dict);
- ClassDB::bind_method(D_METHOD("get_string", "name"), &RegExMatch::get_string, DEFVAL(0));
- ClassDB::bind_method(D_METHOD("get_start", "name"), &RegExMatch::get_start, DEFVAL(0));
- ClassDB::bind_method(D_METHOD("get_end", "name"), &RegExMatch::get_end, DEFVAL(0));
+ } else {
+
+ if (code)
+ pcre2_code_free_32((pcre2_code_32 *)code);
+ pcre2_general_context_free_32((pcre2_general_context_32 *)general_ctx);
+ }
}
void RegEx::_bind_methods() {
ClassDB::bind_method(D_METHOD("clear"), &RegEx::clear);
ClassDB::bind_method(D_METHOD("compile", "pattern"), &RegEx::compile);
- ClassDB::bind_method(D_METHOD("search", "text", "start", "end"), &RegEx::search, DEFVAL(0), DEFVAL(-1));
- ClassDB::bind_method(D_METHOD("sub", "text", "replacement", "all", "start", "end"), &RegEx::sub, DEFVAL(false), DEFVAL(0), DEFVAL(-1));
+ ClassDB::bind_method(D_METHOD("search", "subject", "offset", "end"), &RegEx::search, DEFVAL(0), DEFVAL(-1));
+ ClassDB::bind_method(D_METHOD("sub", "subject", "replacement", "all", "offset", "end"), &RegEx::sub, DEFVAL(false), DEFVAL(0), DEFVAL(-1));
ClassDB::bind_method(D_METHOD("is_valid"), &RegEx::is_valid);
ClassDB::bind_method(D_METHOD("get_pattern"), &RegEx::get_pattern);
ClassDB::bind_method(D_METHOD("get_group_count"), &RegEx::get_group_count);
ClassDB::bind_method(D_METHOD("get_names"), &RegEx::get_names);
-
- ADD_PROPERTY(PropertyInfo(Variant::STRING, "pattern"), "compile", "get_pattern");
}
diff --git a/modules/regex/regex.h b/modules/regex/regex.h
index 8c76035b82..0d97bcce54 100644
--- a/modules/regex/regex.h
+++ b/modules/regex/regex.h
@@ -31,59 +31,53 @@
#ifndef REGEX_H
#define REGEX_H
+#include "core/array.h"
#include "core/dictionary.h"
+#include "core/map.h"
#include "core/reference.h"
-#include "core/resource.h"
#include "core/ustring.h"
#include "core/vector.h"
-class RegExNode;
-
class RegExMatch : public Reference {
GDCLASS(RegExMatch, Reference);
- struct Group {
- Variant name;
+ struct Range {
int start;
- int length;
+ int end;
};
- Vector<Group> captures;
- String string;
+ String subject;
+ Vector<Range> data;
+ Map<String, int> names;
friend class RegEx;
- friend class RegExSearch;
- friend class RegExNodeCapturing;
- friend class RegExNodeBackReference;
protected:
static void _bind_methods();
-public:
- String expand(const String &p_template) const;
+ int _find(const Variant &p_name) const;
+public:
+ String get_subject() const;
int get_group_count() const;
- Array get_group_array() const;
-
- Array get_names() const;
- Dictionary get_name_dict() const;
+ Dictionary get_names() const;
+ Array get_strings() const;
String get_string(const Variant &p_name) const;
int get_start(const Variant &p_name) const;
int get_end(const Variant &p_name) const;
-
- RegExMatch();
};
-class RegEx : public Resource {
+class RegEx : public Reference {
- GDCLASS(RegEx, Resource);
+ GDCLASS(RegEx, Reference);
- RegExNode *root;
- Vector<Variant> group_names;
+ void *general_ctx;
+ void *code;
String pattern;
- int lookahead_depth;
+
+ void _pattern_info(uint32_t what, void *where) const;
protected:
static void _bind_methods();
@@ -91,9 +85,10 @@ protected:
public:
void clear();
Error compile(const String &p_pattern);
+ void _init(const String &p_pattern = "");
- Ref<RegExMatch> search(const String &p_text, int p_start = 0, int p_end = -1) const;
- String sub(const String &p_text, const String &p_replacement, bool p_all = false, int p_start = 0, int p_end = -1) const;
+ Ref<RegExMatch> search(const String &p_subject, int offset = 0, int end = -1) const;
+ String sub(const String &p_subject, const String &p_replacement, bool p_all = false, int p_start = 0, int p_end = -1) const;
bool is_valid() const;
String get_pattern() const;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 20:22:51 +0000