mirror of
https://github.com/openharmony/ark_js_runtime.git
synced 2026-08-28 04:49:56 -04:00
zhaozhibo
1304 lines
46 KiB
C++
1304 lines
46 KiB
C++
/*
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* Copyright (c) 2021 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "ecmascript/regexp/regexp_parser.h"
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#include "ecmascript/base/string_helper.h"
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#include "ecmascript/ecma_macros.h"
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#include "ecmascript/regexp/regexp_opcode.h"
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#include "libpandabase/utils/utils.h"
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#include "securec.h"
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#include "unicode/uniset.h"
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#define _NO_DEBUG_
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namespace panda::ecmascript {
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static RangeSet g_rangeD(0x30, 0x39); // NOLINTNEXTLINE(fuchsia-statically-constructed-objects)
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// NOLINTNEXTLINE(fuchsia-statically-constructed-objects)
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static RangeSet g_rangeS({
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std::pair<uint32_t, uint32_t>(0x0009, 0x000D), // NOLINTNEXTLINE(readability-magic-numbers)
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std::pair<uint32_t, uint32_t>(0x0020, 0x0020), // NOLINTNEXTLINE(readability-magic-numbers)
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std::pair<uint32_t, uint32_t>(0x00A0, 0x00A0), // NOLINTNEXTLINE(readability-magic-numbers)
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std::pair<uint32_t, uint32_t>(0x1680, 0x1680), // NOLINTNEXTLINE(readability-magic-numbers)
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std::pair<uint32_t, uint32_t>(0x2000, 0x200A), // NOLINTNEXTLINE(readability-magic-numbers)
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/* 2028;LINE SEPARATOR;Zl;0;WS;;;;;N;;;;; */
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/* 2029;PARAGRAPH SEPARATOR;Zp;0;B;;;;;N;;;;; */
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std::pair<uint32_t, uint32_t>(0x2028, 0x2029), // NOLINTNEXTLINE(readability-magic-numbers)
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std::pair<uint32_t, uint32_t>(0x202F, 0x202F), // NOLINTNEXTLINE(readability-magic-numbers)
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std::pair<uint32_t, uint32_t>(0x205F, 0x205F), // NOLINTNEXTLINE(readability-magic-numbers)
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std::pair<uint32_t, uint32_t>(0x3000, 0x3000), // NOLINTNEXTLINE(readability-magic-numbers)
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/* FEFF;ZERO WIDTH NO-BREAK SPACE;Cf;0;BN;;;;;N;BYTE ORDER MARK;;;; */
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std::pair<uint32_t, uint32_t>(0xFEFF, 0xFEFF), // NOLINTNEXTLINE(readability-magic-numbers)
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});
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// NOLINTNEXTLINE(fuchsia-statically-constructed-objects)
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static RangeSet g_rangeW({
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std::pair<uint32_t, uint32_t>(0x0030, 0x0039), // NOLINTNEXTLINE(readability-magic-numbers)
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std::pair<uint32_t, uint32_t>(0x0041, 0x005A), // NOLINTNEXTLINE(readability-magic-numbers)
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std::pair<uint32_t, uint32_t>(0x005F, 0x005F), // NOLINTNEXTLINE(readability-magic-numbers)
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std::pair<uint32_t, uint32_t>(0x0061, 0x007A), // NOLINTNEXTLINE(readability-magic-numbers)
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});
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// NOLINTNEXTLINE(fuchsia-statically-constructed-objects)
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static RangeSet g_regexpIdentifyStart({
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std::pair<uint32_t, uint32_t>(0x0024, 0x0024), // NOLINTNEXTLINE(readability-magic-numbers)
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std::pair<uint32_t, uint32_t>(0x0041, 0x005A), // NOLINTNEXTLINE(readability-magic-numbers)
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std::pair<uint32_t, uint32_t>(0x0061, 0x007A), // NOLINTNEXTLINE(readability-magic-numbers)
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});
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// NOLINTNEXTLINE(fuchsia-statically-constructed-objects)
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static RangeSet g_regexpIdentifyContinue({
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std::pair<uint32_t, uint32_t>(0x0024, 0x0024), // NOLINTNEXTLINE(readability-magic-numbers)
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std::pair<uint32_t, uint32_t>(0x0030, 0x0039), // NOLINTNEXTLINE(readability-magic-numbers)
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std::pair<uint32_t, uint32_t>(0x0041, 0x005A), // NOLINTNEXTLINE(readability-magic-numbers)
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std::pair<uint32_t, uint32_t>(0x0061, 0x007A), // NOLINTNEXTLINE(readability-magic-numbers)
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});
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void RegExpParser::Parse()
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{
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// dynbuffer head init [size,capture_count,statck_count,flags]
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buffer_.EmitU32(0);
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buffer_.EmitU32(0);
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buffer_.EmitU32(0);
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buffer_.EmitU32(0);
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// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
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PrintF("Parse Pattern------\n");
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// Pattern[U, N]::
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// Disjunction[?U, ?N]
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// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
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Advance();
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SaveStartOpCode saveStartOp;
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int captureIndex = captureCount_++;
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saveStartOp.EmitOpCode(&buffer_, captureIndex);
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ParseDisjunction(false);
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if (c0_ != KEY_EOF) {
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ParseError("extraneous characters at the end");
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return;
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}
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SaveEndOpCode saveEndOp;
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saveEndOp.EmitOpCode(&buffer_, captureIndex);
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MatchEndOpCode matchEndOp;
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matchEndOp.EmitOpCode(&buffer_, 0);
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// dynbuffer head assignments
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buffer_.PutU32(0, buffer_.size_);
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buffer_.PutU32(NUM_CAPTURE__OFFSET, captureCount_);
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buffer_.PutU32(NUM_STACK_OFFSET, stackCount_);
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buffer_.PutU32(FLAGS_OFFSET, flags_);
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#ifndef _NO_DEBUG_
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RegExpOpCode::DumpRegExpOpCode(std::cout, buffer_);
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#endif
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}
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void RegExpParser::ParseDisjunction(bool isBackward)
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{
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// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
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PrintF("Parse Disjunction------\n");
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size_t start = buffer_.size_;
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ParseAlternative(isBackward);
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if (isError_) {
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return;
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}
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do {
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if (c0_ == '|') {
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SplitNextOpCode splitOp;
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uint32_t len = buffer_.size_ - start;
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GotoOpCode gotoOp;
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splitOp.InsertOpCode(&buffer_, start, len + gotoOp.GetSize());
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uint32_t pos = gotoOp.EmitOpCode(&buffer_, 0) - gotoOp.GetSize();
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Advance();
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ParseAlternative(isBackward);
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gotoOp.UpdateOpPara(&buffer_, pos, buffer_.size_ - pos - gotoOp.GetSize());
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}
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} while (c0_ != KEY_EOF && c0_ != ')');
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}
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uint32_t RegExpParser::ParseOctalLiteral()
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{
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// For compatibility with some other browsers (not all), we parse
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// up to three octal digits with a value below 256.
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// ES#prod-annexB-LegacyOctalEscapeSequence
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uint32_t value = c0_ - '0';
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Advance();
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if (c0_ >= '0' && c0_ <= '7') {
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value = value * OCTAL_VALUE + c0_ - '0';
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Advance();
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if (value < OCTAL_VALUE_RANGE && c0_ >= '0' && c0_ <= '7') {
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value = value * OCTAL_VALUE + c0_ - '0';
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Advance();
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}
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}
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return value;
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}
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bool RegExpParser::ParseUnlimitedLengthHexNumber(uint32_t maxValue, uint32_t *value)
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{
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uint32_t x = 0;
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int d = static_cast<int>(HexValue(c0_));
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if (d < 0) {
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return false;
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}
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while (d >= 0) {
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if (UNLIKELY(x > (std::numeric_limits<uint32_t>::max() - static_cast<uint32_t>(d)) / HEX_VALUE)) {
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LOG_ECMA(FATAL) << "value overflow";
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return false;
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}
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x = x * HEX_VALUE + static_cast<uint32_t>(d);
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if (x > maxValue) {
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return false;
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}
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Advance();
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d = static_cast<int>(HexValue(c0_));
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}
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*value = x;
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return true;
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}
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// This parses RegExpUnicodeEscapeSequence as described in ECMA262.
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bool RegExpParser::ParseUnicodeEscape(uint32_t *value)
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{
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// Accept both \uxxxx and \u{xxxxxx} (if allowed).
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// In the latter case, the number of hex digits between { } is arbitrary.
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// \ and u have already been read.
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if (c0_ == '{' && IsUtf16()) {
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uint8_t *start = pc_ - 1; // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
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Advance();
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if (ParseUnlimitedLengthHexNumber(0x10FFFF, value)) { // NOLINTNEXTLINE(readability-magic-numbers)
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if (c0_ == '}') {
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Advance();
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return true;
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}
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}
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pc_ = start;
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Advance();
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return false;
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}
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// \u but no {, or \u{...} escapes not allowed.
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bool result = ParseHexEscape(UNICODE_HEX_VALUE, value);
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if (result && IsUtf16() && U16_IS_LEAD(*value) && c0_ == '\\') {
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// Attempt to read trail surrogate.
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uint8_t *start = pc_ - 1; // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
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if (*pc_ == 'u') {
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Advance(UNICODE_HEX_ADVANCE);
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uint32_t trail;
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if (ParseHexEscape(UNICODE_HEX_VALUE, &trail) && U16_IS_TRAIL(trail)) {
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*value = U16_GET_SUPPLEMENTARY((*value), (trail)); // NOLINTNEXTLINE(hicpp-signed-bitwise)
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return true;
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}
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}
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pc_ = start;
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Advance();
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}
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return result;
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}
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bool RegExpParser::ParseHexEscape(int length, uint32_t *value)
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{
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uint8_t *start = pc_ - 1; // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
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uint32_t val = 0;
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for (int i = 0; i < length; ++i) {
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uint32_t c = c0_;
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int d = static_cast<int>(HexValue(c));
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if (d < 0) {
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pc_ = start;
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Advance();
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return false;
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}
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val = val * HEX_VALUE + static_cast<uint32_t>(d);
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Advance();
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}
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*value = val;
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return true;
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}
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// NOLINTNEXTLINE(readability-function-size)
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void RegExpParser::ParseAlternative(bool isBackward)
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{
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size_t start = buffer_.size_;
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while (c0_ != '|' && c0_ != KEY_EOF && c0_ != ')') {
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if (isError_) {
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return;
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}
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size_t atomBcStart = buffer_.GetSize();
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int captureIndex = 0;
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bool isAtom = false;
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switch (c0_) {
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case '^': {
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// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
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PrintF("Assertion %c line start \n", c0_);
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LineStartOpCode lineStartOp;
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lineStartOp.EmitOpCode(&buffer_, 0);
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Advance();
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} break;
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case '$': {
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// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
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PrintF("Assertion %c line end \n", c0_);
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LineEndOpCode lineEndOp;
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lineEndOp.EmitOpCode(&buffer_, 0);
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Advance();
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} break;
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case '\\':
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// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
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PrintF("Escape %c \n", c0_);
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Advance();
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switch (c0_) {
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case 'b': {
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// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
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PrintF("Assertion %c \n", c0_);
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WordBoundaryOpCode wordBoundaryOp;
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wordBoundaryOp.EmitOpCode(&buffer_, 0);
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Advance();
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} break;
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case 'B': {
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// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
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PrintF("Assertion %c \n", c0_);
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NotWordBoundaryOpCode notWordBoundaryOp;
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notWordBoundaryOp.EmitOpCode(&buffer_, 0);
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Advance();
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} break;
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default:
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isAtom = true;
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int atomValue = ParseAtomEscape(isBackward);
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if (atomValue != -1) {
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if (IsIgnoreCase()) {
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if (!IsUtf16()) {
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atomValue = Canonicalize(atomValue, false);
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} else {
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icu::UnicodeSet set(atomValue, atomValue);
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set.closeOver(USET_CASE_INSENSITIVE);
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set.removeAllStrings();
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int32_t size = set.size();
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RangeOpCode rangeOp;
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RangeSet rangeResult;
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for (int32_t idx = 0; idx < size; idx++) {
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int32_t uc = set.charAt(idx);
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RangeSet curRange(uc);
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rangeResult.Insert(curRange);
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}
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rangeOp.InsertOpCode(&buffer_, rangeResult);
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break;
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}
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}
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if (atomValue <= UINT16_MAX) {
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CharOpCode charOp;
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charOp.EmitOpCode(&buffer_, atomValue);
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} else {
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Char32OpCode charOp;
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charOp.EmitOpCode(&buffer_, atomValue);
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}
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}
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break;
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}
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break;
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case '(': {
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Advance();
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isAtom = ParseAssertionCapture(&captureIndex, isBackward);
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// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
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Advance();
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} break;
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case '.': {
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PrevOpCode prevOp;
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if (isBackward) {
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prevOp.EmitOpCode(&buffer_, 0);
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}
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if (IsDotAll()) {
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AllOpCode allOp;
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allOp.EmitOpCode(&buffer_, 0);
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} else {
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DotsOpCode dotsOp;
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dotsOp.EmitOpCode(&buffer_, 0);
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}
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if (isBackward) {
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prevOp.EmitOpCode(&buffer_, 0);
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}
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// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
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PrintF("Atom %c match any \n", c0_);
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isAtom = true;
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Advance();
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} break;
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case '[': {
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// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
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PrintF("Atom %c match range \n", c0_);
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isAtom = true;
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PrevOpCode prevOp;
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Advance();
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if (isBackward) {
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prevOp.EmitOpCode(&buffer_, 0);
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}
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bool isInvert = false;
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if (c0_ == '^') {
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isInvert = true;
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Advance();
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}
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RangeSet rangeResult;
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if (!ParseClassRanges(&rangeResult)) {
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break;
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}
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if (isInvert) {
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rangeResult.Invert(IsUtf16());
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}
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uint32_t highValue = rangeResult.HighestValue();
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if (highValue <= UINT16_MAX) {
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RangeOpCode rangeOp;
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rangeOp.InsertOpCode(&buffer_, rangeResult);
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} else {
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Range32OpCode rangeOp;
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rangeOp.InsertOpCode(&buffer_, rangeResult);
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}
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if (isBackward) {
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prevOp.EmitOpCode(&buffer_, 0);
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}
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} break;
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case '*':
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case '+':
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case '?':
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// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
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ParseError("nothing to repeat");
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return;
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case '{': {
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uint8_t *begin = pc_ - 1; // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
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int dummy;
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if (ParserIntervalQuantifier(&dummy, &dummy)) {
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ParseError("nothing to repeat");
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return;
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}
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pc_ = begin;
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Advance();
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}
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[[fallthrough]];
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case '}':
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case ']':
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if (IsUtf16()) {
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ParseError("syntax error");
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return;
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}
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[[fallthrough]];
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default:
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// PatternCharacter
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// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
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PrintF("PatternCharacter %c\n", c0_);
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isAtom = true;
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{
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PrevOpCode prevOp;
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if (isBackward) {
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prevOp.EmitOpCode(&buffer_, 0);
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}
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uint32_t matchedChar = c0_;
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if (c0_ > (INT8_MAX + 1)) {
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Prev();
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int i = 0;
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UChar32 c;
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int32_t length = end_ - pc_ + 1;
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// NOLINTNEXTLINE(hicpp-signed-bitwise)
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U8_NEXT(pc_, i, length, c); // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
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matchedChar = static_cast<uint32_t>(c);
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pc_ += i; // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
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}
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if (IsIgnoreCase()) {
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matchedChar = static_cast<uint32_t>(Canonicalize(static_cast<int>(matchedChar), IsUtf16()));
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}
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if (matchedChar > UINT16_MAX) {
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Char32OpCode charOp;
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charOp.EmitOpCode(&buffer_, matchedChar);
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} else {
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CharOpCode charOp;
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charOp.EmitOpCode(&buffer_, matchedChar);
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}
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if (isBackward) {
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prevOp.EmitOpCode(&buffer_, 0);
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}
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}
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Advance();
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break;
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}
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if (isAtom && !isError_) {
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ParseQuantifier(atomBcStart, captureIndex, captureCount_ - 1);
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}
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if (isBackward) {
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size_t end = buffer_.GetSize();
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size_t termSize = end - atomBcStart;
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size_t moveSize = end - start;
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buffer_.Expand(end + termSize);
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if (memmove_s(buffer_.buf_ + start + // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
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termSize, // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
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moveSize,
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buffer_.buf_ + start, // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
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moveSize) != EOK) {
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LOG_ECMA(FATAL) << "memmove_s failed";
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UNREACHABLE();
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}
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// NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
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if (memcpy_s(buffer_.buf_ + start, termSize, buffer_.buf_ + end, termSize) != EOK) {
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LOG_ECMA(FATAL) << "memcpy_s failed";
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UNREACHABLE();
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}
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}
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}
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}
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|
|
int RegExpParser::FindGroupName(const CString &name)
|
|
{
|
|
size_t len = 0;
|
|
size_t nameLen = name.size();
|
|
const char *p = reinterpret_cast<char *>(groupNames_.buf_);
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
|
|
const char *bufEnd = reinterpret_cast<char *>(groupNames_.buf_) + groupNames_.size_;
|
|
int captureIndex = 1;
|
|
while (p < bufEnd) {
|
|
len = strlen(p);
|
|
if (len == nameLen && memcmp(name.c_str(), p, nameLen) == 0) {
|
|
return captureIndex;
|
|
}
|
|
p += len + 1; // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
|
|
captureIndex++;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
bool RegExpParser::ParseAssertionCapture(int *captureIndex, bool isBackward)
|
|
{
|
|
bool isAtom = false;
|
|
do {
|
|
if (c0_ == '?') {
|
|
Advance();
|
|
switch (c0_) {
|
|
// (?=Disjunction[?U, ?N])
|
|
case '=': {
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("Assertion(?= Disjunction)\n");
|
|
Advance();
|
|
uint32_t start = buffer_.size_;
|
|
ParseDisjunction(isBackward);
|
|
MatchOpCode matchOp;
|
|
matchOp.EmitOpCode(&buffer_, 0);
|
|
MatchAheadOpCode matchAheadOp;
|
|
uint32_t len = buffer_.size_ - start;
|
|
matchAheadOp.InsertOpCode(&buffer_, start, len);
|
|
} break;
|
|
// (?!Disjunction[?U, ?N])
|
|
case '!': {
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("Assertion(?! Disjunction)\n");
|
|
uint32_t start = buffer_.size_;
|
|
Advance();
|
|
ParseDisjunction(isBackward);
|
|
MatchOpCode matchOp;
|
|
matchOp.EmitOpCode(&buffer_, 0);
|
|
NegativeMatchAheadOpCode matchAheadOp;
|
|
uint32_t len = buffer_.size_ - start;
|
|
matchAheadOp.InsertOpCode(&buffer_, start, len);
|
|
} break;
|
|
case '<':
|
|
Advance();
|
|
// (?<=Disjunction[?U, ?N])
|
|
if (c0_ == '=') {
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("Assertion(?<= Disjunction)\n");
|
|
Advance();
|
|
uint32_t start = buffer_.size_;
|
|
ParseDisjunction(true);
|
|
MatchOpCode matchOp;
|
|
matchOp.EmitOpCode(&buffer_, 0);
|
|
MatchAheadOpCode matchAheadOp;
|
|
uint32_t len = buffer_.size_ - start;
|
|
matchAheadOp.InsertOpCode(&buffer_, start, len);
|
|
// (?<!Disjunction[?U, ?N])
|
|
} else if (c0_ == '!') {
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("Assertion(?<! Disjunction)\n");
|
|
Advance();
|
|
uint32_t start = buffer_.size_;
|
|
ParseDisjunction(true);
|
|
MatchOpCode matchOp;
|
|
matchOp.EmitOpCode(&buffer_, 0);
|
|
NegativeMatchAheadOpCode matchAheadOp;
|
|
uint32_t len = buffer_.size_ - start;
|
|
matchAheadOp.InsertOpCode(&buffer_, start, len);
|
|
} else {
|
|
Prev();
|
|
CString name;
|
|
auto **pp = const_cast<const uint8_t **>(&pc_);
|
|
if (!ParseGroupSpecifier(pp, name)) {
|
|
ParseError("GroupName Syntax error.");
|
|
return false;
|
|
}
|
|
if (FindGroupName(name) > 0) {
|
|
ParseError("Duplicate GroupName error.");
|
|
return false;
|
|
}
|
|
groupNames_.EmitStr(name.c_str());
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("group name %s", name.c_str());
|
|
Advance();
|
|
goto parseCapture; // NOLINTNEXTLINE(cppcoreguidelines-avoid-goto)
|
|
}
|
|
break;
|
|
// (?:Disjunction[?U, ?N])
|
|
case ':':
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("Atom(?<: Disjunction)\n");
|
|
isAtom = true;
|
|
Advance();
|
|
ParseDisjunction(isBackward);
|
|
break;
|
|
default:
|
|
Advance();
|
|
ParseError("? Syntax error.");
|
|
return false;
|
|
}
|
|
} else {
|
|
groupNames_.EmitChar(0);
|
|
parseCapture:
|
|
isAtom = true;
|
|
*captureIndex = captureCount_++;
|
|
SaveEndOpCode saveEndOp;
|
|
SaveStartOpCode saveStartOp;
|
|
if (isBackward) {
|
|
saveEndOp.EmitOpCode(&buffer_, *captureIndex);
|
|
} else {
|
|
saveStartOp.EmitOpCode(&buffer_, *captureIndex);
|
|
}
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("capture start %d \n", *captureIndex);
|
|
ParseDisjunction(isBackward);
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("capture end %d \n", *captureIndex);
|
|
if (isBackward) {
|
|
saveStartOp.EmitOpCode(&buffer_, *captureIndex);
|
|
} else {
|
|
saveEndOp.EmitOpCode(&buffer_, *captureIndex);
|
|
}
|
|
}
|
|
} while (c0_ != ')' && c0_ != KEY_EOF);
|
|
if (c0_ != ')') {
|
|
ParseError("capture syntax error");
|
|
return false;
|
|
}
|
|
return isAtom;
|
|
}
|
|
|
|
int RegExpParser::ParseDecimalDigits()
|
|
{
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("Parse DecimalDigits------\n");
|
|
uint32_t result = 0;
|
|
bool overflow = false;
|
|
while (true) {
|
|
if (c0_ < '0' || c0_ > '9') {
|
|
break;
|
|
}
|
|
if (!overflow) {
|
|
if (UNLIKELY(result > (INT32_MAX - c0_ + '0') / DECIMAL_DIGITS_ADVANCE)) {
|
|
overflow = true;
|
|
} else {
|
|
result = result * DECIMAL_DIGITS_ADVANCE + c0_ - '0';
|
|
}
|
|
}
|
|
Advance();
|
|
}
|
|
if (overflow) {
|
|
return INT32_MAX;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
bool RegExpParser::ParserIntervalQuantifier(int *pmin, int *pmax)
|
|
{
|
|
// Quantifier::
|
|
// QuantifierPrefix
|
|
// QuantifierPrefix?
|
|
// QuantifierPrefix::
|
|
// *
|
|
// +
|
|
// ?
|
|
// {DecimalDigits}
|
|
// {DecimalDigits,}
|
|
// {DecimalDigits,DecimalDigits}
|
|
Advance();
|
|
*pmin = ParseDecimalDigits();
|
|
*pmax = *pmin;
|
|
switch (c0_) {
|
|
case ',':
|
|
Advance();
|
|
if (c0_ == '}') {
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("QuantifierPrefix{DecimalDigits,}\n");
|
|
*pmax = INT32_MAX;
|
|
Advance();
|
|
} else {
|
|
*pmax = ParseDecimalDigits();
|
|
if (c0_ == '}') {
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("QuantifierPrefix{DecimalDigits,DecimalDigits}\n");
|
|
Advance();
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
break;
|
|
case '}':
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("QuantifierPrefix{DecimalDigits}\n");
|
|
Advance();
|
|
break;
|
|
default:
|
|
Advance();
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void RegExpParser::ParseQuantifier(size_t atomBcStart, int captureStart, int captureEnd)
|
|
{
|
|
int min = -1;
|
|
int max = -1;
|
|
bool isGreedy = true;
|
|
switch (c0_) {
|
|
case '*':
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("QuantifierPrefix %c\n", c0_);
|
|
min = 0;
|
|
max = INT32_MAX;
|
|
Advance();
|
|
break;
|
|
case '+':
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("QuantifierPrefix %c\n", c0_);
|
|
min = 1;
|
|
max = INT32_MAX;
|
|
Advance();
|
|
break;
|
|
case '?':
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("QuantifierPrefix %c\n", c0_);
|
|
Advance();
|
|
min = 0;
|
|
max = 1;
|
|
break;
|
|
case '{': {
|
|
uint8_t *start = pc_ - 1; // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
|
|
if (!ParserIntervalQuantifier(&min, &max)) {
|
|
pc_ = start;
|
|
Advance(); // back to '{'
|
|
return;
|
|
}
|
|
if (min > max) {
|
|
ParseError("Invalid repetition count");
|
|
return;
|
|
}
|
|
} break;
|
|
default:
|
|
break;
|
|
}
|
|
if (c0_ == '?') {
|
|
isGreedy = false;
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("Quantifier::QuantifierPrefix?\n");
|
|
Advance();
|
|
} else if (c0_ == '?' || c0_ == '+' || c0_ == '*' || c0_ == '{') {
|
|
ParseError("nothing to repeat");
|
|
return;
|
|
}
|
|
if (min != -1 && max != -1) {
|
|
stackCount_++;
|
|
PushOpCode pushOp;
|
|
pushOp.InsertOpCode(&buffer_, atomBcStart);
|
|
atomBcStart += pushOp.GetSize();
|
|
|
|
if (captureStart != 0) {
|
|
SaveResetOpCode saveResetOp;
|
|
saveResetOp.InsertOpCode(&buffer_, atomBcStart, captureStart, captureEnd);
|
|
}
|
|
|
|
// zero advance check
|
|
if (max == INT32_MAX) {
|
|
stackCount_++;
|
|
PushCharOpCode pushCharOp;
|
|
pushCharOp.InsertOpCode(&buffer_, atomBcStart);
|
|
CheckCharOpCode checkCharOp;
|
|
// NOLINTNEXTLINE(readability-magic-numbers)
|
|
checkCharOp.EmitOpCode(&buffer_, RegExpOpCode::GetRegExpOpCode(RegExpOpCode::OP_LOOP)->GetSize());
|
|
}
|
|
|
|
if (isGreedy) {
|
|
LoopGreedyOpCode loopOp;
|
|
loopOp.EmitOpCode(&buffer_, atomBcStart - buffer_.GetSize() - loopOp.GetSize(), min, max);
|
|
} else {
|
|
LoopOpCode loopOp;
|
|
loopOp.EmitOpCode(&buffer_, atomBcStart - buffer_.GetSize() - loopOp.GetSize(), min, max);
|
|
}
|
|
|
|
if (min == 0) {
|
|
if (isGreedy) {
|
|
SplitNextOpCode splitNextOp;
|
|
splitNextOp.InsertOpCode(&buffer_, atomBcStart, buffer_.GetSize() - atomBcStart);
|
|
} else {
|
|
SplitFirstOpCode splitFirstOp;
|
|
splitFirstOp.InsertOpCode(&buffer_, atomBcStart, buffer_.GetSize() - atomBcStart);
|
|
}
|
|
}
|
|
|
|
PopOpCode popOp;
|
|
popOp.EmitOpCode(&buffer_);
|
|
}
|
|
}
|
|
|
|
bool RegExpParser::ParseGroupSpecifier(const uint8_t **pp, CString &name)
|
|
{
|
|
const uint8_t *p = *pp;
|
|
int c = *p;
|
|
while (c != '>') {
|
|
if (c < (INT8_MAX + 1)) {
|
|
if (name.empty()) {
|
|
if (!g_regexpIdentifyStart.IsContain(c)) {
|
|
return false;
|
|
}
|
|
} else {
|
|
if (!g_regexpIdentifyContinue.IsContain(c)) {
|
|
return false;
|
|
}
|
|
}
|
|
name += static_cast<char>(c);
|
|
}
|
|
c = *++p; // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
|
|
}
|
|
p++; // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
|
|
*pp = p;
|
|
return true;
|
|
}
|
|
|
|
int RegExpParser::ParseCaptureCount(const char *groupName)
|
|
{
|
|
const uint8_t *p;
|
|
int captureIndex = 1;
|
|
CString name;
|
|
for (p = base_; p < end_; p++) { // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
|
|
switch (*p) {
|
|
case '(': {
|
|
if (p[1] == '?') { // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
|
|
if (p[CAPTURE_CONUT_ADVANCE - 1] == '<' && p[CAPTURE_CONUT_ADVANCE] != '!' &&
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
|
|
p[CAPTURE_CONUT_ADVANCE] != '=') {
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
|
|
p += CAPTURE_CONUT_ADVANCE;
|
|
if (groupName != nullptr) {
|
|
if (ParseGroupSpecifier(&p, name)) {
|
|
if (strcmp(name.c_str(), groupName) == 0) {
|
|
return captureIndex;
|
|
}
|
|
}
|
|
}
|
|
captureIndex++;
|
|
}
|
|
} else {
|
|
captureIndex++;
|
|
}
|
|
} break;
|
|
case '\\':
|
|
p++; // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
|
|
break;
|
|
case '[':
|
|
while (p < end_ && *p != ']') {
|
|
if (*p == '\\') {
|
|
p++; // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
|
|
}
|
|
p++; // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
return captureIndex;
|
|
}
|
|
|
|
// NOLINTNEXTLINE(readability-function-size)
|
|
int RegExpParser::ParseAtomEscape(bool isBackward)
|
|
{
|
|
// AtomEscape[U, N]::
|
|
// DecimalEscape
|
|
// CharacterClassEscape[?U]
|
|
// CharacterEscape[?U]
|
|
// [+N]kGroupName[?U]
|
|
int result = -1;
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("Parse AtomEscape------\n");
|
|
switch (c0_) {
|
|
case KEY_EOF:
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
ParseError("unexpected end");
|
|
break;
|
|
// DecimalEscape
|
|
case '1':
|
|
case '2':
|
|
case '3':
|
|
case '4':
|
|
case '5':
|
|
case '6':
|
|
case '7':
|
|
case '8':
|
|
case '9': {
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("NonZeroDigit %c\n", c0_);
|
|
int capture = ParseDecimalDigits();
|
|
if (capture > captureCount_ - 1 && capture > ParseCaptureCount(nullptr) - 1) {
|
|
ParseError("invalid backreference count");
|
|
break;
|
|
}
|
|
if (isBackward) {
|
|
BackwardBackReferenceOpCode backReferenceOp;
|
|
backReferenceOp.EmitOpCode(&buffer_, capture);
|
|
} else {
|
|
BackReferenceOpCode backReferenceOp;
|
|
backReferenceOp.EmitOpCode(&buffer_, capture);
|
|
}
|
|
} break;
|
|
// CharacterClassEscape
|
|
case 'd': {
|
|
// [0-9]
|
|
RangeOpCode rangeOp;
|
|
rangeOp.InsertOpCode(&buffer_, g_rangeD);
|
|
Advance();
|
|
} break;
|
|
case 'D': {
|
|
// [^0-9]
|
|
RangeSet atomRange(g_rangeD);
|
|
atomRange.Invert(IsUtf16());
|
|
Range32OpCode rangeOp;
|
|
rangeOp.InsertOpCode(&buffer_, atomRange);
|
|
Advance();
|
|
} break;
|
|
case 's': {
|
|
// [\f\n\r\t\v]
|
|
RangeOpCode rangeOp;
|
|
rangeOp.InsertOpCode(&buffer_, g_rangeS);
|
|
Advance();
|
|
} break;
|
|
case 'S': {
|
|
RangeSet atomRange(g_rangeS);
|
|
atomRange.Invert(IsUtf16());
|
|
Range32OpCode rangeOp;
|
|
rangeOp.InsertOpCode(&buffer_, atomRange);
|
|
Advance();
|
|
} break;
|
|
case 'w': {
|
|
// [A-Za-z0-9]
|
|
RangeOpCode rangeOp;
|
|
rangeOp.InsertOpCode(&buffer_, g_rangeW);
|
|
Advance();
|
|
} break;
|
|
case 'W': {
|
|
// [^A-Za-z0-9]
|
|
RangeSet atomRange(g_rangeW);
|
|
atomRange.Invert(IsUtf16());
|
|
Range32OpCode rangeOp;
|
|
rangeOp.InsertOpCode(&buffer_, atomRange);
|
|
Advance();
|
|
} break;
|
|
// P{UnicodePropertyValueExpression}
|
|
// p{UnicodePropertyValueExpression}
|
|
case 'P':
|
|
case 'p':
|
|
// [+N]kGroupName[?U]
|
|
case 'k':
|
|
default:
|
|
result = ParseCharacterEscape();
|
|
break;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
int RegExpParser::ParseCharacterEscape()
|
|
{
|
|
// CharacterEscape[U]::
|
|
// ControlEscape
|
|
// c ControlLetter
|
|
// 0 [lookahead ∉ DecimalDigit]
|
|
// HexEscapeSequence
|
|
// RegExpUnicodeEscapeSequence[?U]
|
|
// IdentityEscape[?U]
|
|
uint32_t result = 0;
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
switch (c0_) {
|
|
// ControlEscape
|
|
case 'f':
|
|
result = '\f';
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("ControlEscape %c\n", c0_);
|
|
Advance();
|
|
break;
|
|
case 'n':
|
|
result = '\n';
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("ControlEscape %c\n", c0_);
|
|
Advance();
|
|
break;
|
|
case 'r':
|
|
result = '\r';
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("ControlEscape %c\n", c0_);
|
|
Advance();
|
|
break;
|
|
case 't':
|
|
result = '\t';
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("ControlEscape %c\n", c0_);
|
|
Advance();
|
|
break;
|
|
case 'v':
|
|
result = '\v';
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("ControlEscape %c\n", c0_);
|
|
Advance();
|
|
break;
|
|
// c ControlLetter
|
|
case 'c':
|
|
Advance();
|
|
if ((c0_ >= 'A' && c0_ <= 'Z') || (c0_ >= 'a' && c0_ <= 'z')) {
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("ControlLetter %c\n", c0_);
|
|
result = static_cast<uint32_t>(c0_) & 0x1f; // NOLINTNEXTLINE(readability-magic-numbers)
|
|
Advance();
|
|
} else {
|
|
if (!IsUtf16()) {
|
|
pc_--; // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
|
|
result = '\\';
|
|
} else {
|
|
ParseError("Invalid control letter");
|
|
return -1;
|
|
}
|
|
}
|
|
break;
|
|
case '0':
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("CharacterEscape 0 [lookahead ∉ DecimalDigit]\n");
|
|
if (IsUtf16() && !(*pc_ >= '0' && *pc_ <= '9')) { // NOLINTNEXTLINE(readability-magic-numbers)
|
|
Advance();
|
|
result = 0;
|
|
break;
|
|
}
|
|
[[fallthrough]];
|
|
case '1':
|
|
case '2':
|
|
case '3':
|
|
case '4':
|
|
case '5':
|
|
case '6':
|
|
case '7':
|
|
if (IsUtf16()) {
|
|
// With /u, decimal escape is not interpreted as octal character code.
|
|
ParseError("Invalid class escape");
|
|
return 0;
|
|
}
|
|
result = ParseOctalLiteral();
|
|
break;
|
|
// ParseHexEscapeSequence
|
|
// ParseRegExpUnicodeEscapeSequence
|
|
case 'x': {
|
|
Advance();
|
|
if (ParseHexEscape(UNICODE_HEX_ADVANCE, &result)) {
|
|
return result;
|
|
}
|
|
if (IsUtf16()) {
|
|
ParseError("Invalid class escape");
|
|
return -1;
|
|
}
|
|
result = 'x';
|
|
break;
|
|
}
|
|
case 'u': {
|
|
Advance();
|
|
if (ParseUnicodeEscape(&result)) {
|
|
return result;
|
|
}
|
|
if (IsUtf16()) {
|
|
// With /u, invalid escapes are not treated as identity escapes.
|
|
ParseError("Invalid unicode escape");
|
|
return 0;
|
|
}
|
|
// If \u is not followed by a two-digit hexadecimal, treat it
|
|
// as an identity escape.
|
|
result = 'u';
|
|
} break;
|
|
// IdentityEscape[?U]
|
|
case '$':
|
|
case '(':
|
|
case ')':
|
|
case '*':
|
|
case '+':
|
|
case '.':
|
|
case '/':
|
|
case '?':
|
|
case '[':
|
|
case '\\':
|
|
case ']':
|
|
case '^':
|
|
case '{':
|
|
case '|':
|
|
case '}':
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("IdentityEscape %c\n", c0_);
|
|
result = c0_;
|
|
Advance();
|
|
break;
|
|
default:
|
|
if (IsUtf16()) {
|
|
ParseError("Invalid unicode escape");
|
|
return 0;
|
|
}
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("SourceCharacter %c\n", c0_);
|
|
result = c0_;
|
|
Advance();
|
|
break;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
bool RegExpParser::ParseClassRanges(RangeSet *result)
|
|
{
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("Parse ClassRanges------\n");
|
|
while (c0_ != ']') {
|
|
RangeSet s1;
|
|
uint32_t c1 = ParseClassAtom(&s1);
|
|
if (c1 == UINT32_MAX) {
|
|
ParseError("invalid class range");
|
|
return false;
|
|
}
|
|
|
|
int next_c0 = *pc_;
|
|
if (c0_ == '-' && next_c0 != ']') {
|
|
if (c1 == CLASS_RANGE_BASE) {
|
|
if (IsUtf16()) {
|
|
ParseError("invalid class range");
|
|
return false;
|
|
}
|
|
result->Insert(s1);
|
|
continue;
|
|
}
|
|
Advance();
|
|
RangeSet s2;
|
|
uint32_t c2 = ParseClassAtom(&s2);
|
|
if (c2 == UINT32_MAX) {
|
|
ParseError("invalid class range");
|
|
return false;
|
|
}
|
|
if (c2 == CLASS_RANGE_BASE) {
|
|
if (IsUtf16()) {
|
|
ParseError("invalid class range");
|
|
return false;
|
|
}
|
|
result->Insert(s2);
|
|
continue;
|
|
}
|
|
|
|
if (c1 > c2) {
|
|
ParseError("invalid class range");
|
|
return false;
|
|
}
|
|
if (IsIgnoreCase()) {
|
|
c1 = static_cast<uint32_t>(Canonicalize(c1, IsUtf16()));
|
|
c2 = static_cast<uint32_t>(Canonicalize(c2, IsUtf16()));
|
|
}
|
|
|
|
result->Insert(c1, c2);
|
|
} else {
|
|
result->Insert(s1);
|
|
}
|
|
}
|
|
Advance();
|
|
return true;
|
|
}
|
|
|
|
uint32_t RegExpParser::ParseClassAtom(RangeSet *atom)
|
|
{
|
|
uint32_t ret = UINT32_MAX;
|
|
switch (c0_) {
|
|
case '\\': {
|
|
Advance();
|
|
ret = static_cast<uint32_t>(ParseClassEscape(atom));
|
|
} break;
|
|
case KEY_EOF:
|
|
break;
|
|
case 0:
|
|
if (pc_ >= end_) {
|
|
return UINT32_MAX;
|
|
}
|
|
[[fallthrough]];
|
|
default:
|
|
uint32_t value = c0_;
|
|
size_t u16_size = 0;
|
|
if (c0_ > INT8_MAX) { // NOLINTNEXTLINE(readability-magic-numbers)
|
|
pc_ -= 1; // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic)
|
|
auto u16_result = base::utf_helper::ConvertUtf8ToUtf16Pair(pc_, true);
|
|
value = u16_result.first;
|
|
u16_size = u16_result.second;
|
|
Advance(u16_size + 1);
|
|
} else {
|
|
Advance();
|
|
}
|
|
if (IsIgnoreCase()) {
|
|
value = static_cast<uint32_t>(Canonicalize(value, IsUtf16()));
|
|
}
|
|
atom->Insert(RangeSet(value));
|
|
ret = value;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int RegExpParser::ParseClassEscape(RangeSet *atom)
|
|
{
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("Parse ClassEscape------\n");
|
|
int result = -1;
|
|
switch (c0_) {
|
|
case 'b':
|
|
Advance();
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("ClassEscape %c", 'b');
|
|
result = '\b';
|
|
atom->Insert(RangeSet(static_cast<uint32_t>('\b')));
|
|
break;
|
|
case '-':
|
|
Advance();
|
|
result = '-';
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("ClassEscape %c", '-');
|
|
atom->Insert(RangeSet(static_cast<uint32_t>('-')));
|
|
break;
|
|
// CharacterClassEscape
|
|
case 'd':
|
|
case 'D':
|
|
result = CLASS_RANGE_BASE;
|
|
atom->Insert(g_rangeD);
|
|
if (c0_ == 'D') {
|
|
atom->Invert(IsUtf16());
|
|
}
|
|
Advance();
|
|
break;
|
|
case 's':
|
|
case 'S':
|
|
result = CLASS_RANGE_BASE;
|
|
atom->Insert(g_rangeS);
|
|
if (c0_ == 'S') {
|
|
atom->Invert(IsUtf16());
|
|
}
|
|
Advance();
|
|
break;
|
|
case 'w':
|
|
case 'W':
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("ClassEscape::CharacterClassEscape %c\n", c0_);
|
|
result = CLASS_RANGE_BASE;
|
|
atom->Insert(g_rangeW);
|
|
if (c0_ == 'W') {
|
|
atom->Invert(IsUtf16());
|
|
}
|
|
Advance();
|
|
break;
|
|
// P{UnicodePropertyValueExpression}
|
|
// p{UnicodePropertyValueExpression}
|
|
case 'P':
|
|
case 'p':
|
|
PrintF("Warning: \\p is not supported in ECMA 2015!");
|
|
Advance();
|
|
if (c0_ == '{') {
|
|
Advance();
|
|
if (c0_ == '}') {
|
|
break; // p{}, invalid
|
|
}
|
|
bool isValue = false;
|
|
ParseUnicodePropertyValueCharacters(&isValue);
|
|
if (!isValue && c0_ == '=') {
|
|
// UnicodePropertyName = UnicodePropertyValue
|
|
Advance();
|
|
if (c0_ == '}') {
|
|
break; // p{xxx=}, invalid
|
|
}
|
|
ParseUnicodePropertyValueCharacters(&isValue);
|
|
}
|
|
if (c0_ != '}') {
|
|
break; // p{xxx, invalid
|
|
}
|
|
// should do atom->Invert() here after ECMA 9.0
|
|
Advance();
|
|
result = CLASS_RANGE_BASE;
|
|
}
|
|
break;
|
|
default:
|
|
result = ParseCharacterEscape();
|
|
int value = result;
|
|
if (IsIgnoreCase()) {
|
|
value = Canonicalize(value, IsUtf16());
|
|
}
|
|
atom->Insert(RangeSet(static_cast<uint32_t>(value)));
|
|
break;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void RegExpParser::ParseUnicodePropertyValueCharacters(bool *isValue)
|
|
{
|
|
if ((c0_ >= 'A' && c0_ <= 'Z') || (c0_ >= 'a' && c0_ <= 'z')) {
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("UnicodePropertyCharacter::ControlLetter %c\n", c0_);
|
|
} else if (c0_ == '_') {
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("UnicodePropertyCharacter:: _ \n");
|
|
} else if (c0_ >= '0' && c0_ <= '9') {
|
|
*isValue = true;
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("UnicodePropertyValueCharacter::DecimalDigit %c\n", c0_);
|
|
} else {
|
|
return;
|
|
}
|
|
Advance();
|
|
ParseUnicodePropertyValueCharacters(isValue);
|
|
}
|
|
|
|
// NOLINTNEXTLINE(cert-dcl50-cpp)
|
|
void RegExpParser::PrintF(const char *fmt, ...)
|
|
{
|
|
#ifndef _NO_DEBUG_
|
|
va_list args;
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg,)
|
|
va_start(args, fmt);
|
|
vprintf(fmt, args);
|
|
va_end(args);
|
|
#else
|
|
(void)fmt;
|
|
#endif
|
|
}
|
|
|
|
void RegExpParser::ParseError(const char *errorMessage)
|
|
{
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("error: ");
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF(errorMessage);
|
|
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
|
|
PrintF("\n");
|
|
SetIsError();
|
|
size_t length = strlen(errorMessage) + 1;
|
|
if (memcpy_s(errorMsg_, length, errorMessage, length) != EOK) {
|
|
LOG_ECMA(FATAL) << "memcpy_s failed";
|
|
UNREACHABLE();
|
|
}
|
|
}
|
|
} // namespace panda::ecmascript
|