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diff --git a/test/unittest/encodingstest.cpp b/test/unittest/encodingstest.cpp new file mode 100644 index 0000000..82cf777 --- /dev/null +++ b/test/unittest/encodingstest.cpp @@ -0,0 +1,451 @@ +// Tencent is pleased to support the open source community by making RapidJSON available. +// +// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. +// +// Licensed under the MIT License (the "License"); you may not use this file except +// in compliance with the License. You may obtain a copy of the License at +// +// http://opensource.org/licenses/MIT +// +// Unless required by applicable law or agreed to in writing, software distributed +// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR +// CONDITIONS OF ANY KIND, either express or implied. See the License for the +// specific language governing permissions and limitations under the License. + +#include "unittest.h" +#include "rapidjson/filereadstream.h" +#include "rapidjson/filewritestream.h" +#include "rapidjson/encodedstream.h" +#include "rapidjson/stringbuffer.h" + +using namespace rapidjson; + +// Verification of encoders/decoders with Hoehrmann's UTF8 decoder + +// http://www.unicode.org/Public/UNIDATA/Blocks.txt +static const unsigned kCodepointRanges[] = { + 0x0000, 0x007F, // Basic Latin + 0x0080, 0x00FF, // Latin-1 Supplement + 0x0100, 0x017F, // Latin Extended-A + 0x0180, 0x024F, // Latin Extended-B + 0x0250, 0x02AF, // IPA Extensions + 0x02B0, 0x02FF, // Spacing Modifier Letters + 0x0300, 0x036F, // Combining Diacritical Marks + 0x0370, 0x03FF, // Greek and Coptic + 0x0400, 0x04FF, // Cyrillic + 0x0500, 0x052F, // Cyrillic Supplement + 0x0530, 0x058F, // Armenian + 0x0590, 0x05FF, // Hebrew + 0x0600, 0x06FF, // Arabic + 0x0700, 0x074F, // Syriac + 0x0750, 0x077F, // Arabic Supplement + 0x0780, 0x07BF, // Thaana + 0x07C0, 0x07FF, // NKo + 0x0800, 0x083F, // Samaritan + 0x0840, 0x085F, // Mandaic + 0x0900, 0x097F, // Devanagari + 0x0980, 0x09FF, // Bengali + 0x0A00, 0x0A7F, // Gurmukhi + 0x0A80, 0x0AFF, // Gujarati + 0x0B00, 0x0B7F, // Oriya + 0x0B80, 0x0BFF, // Tamil + 0x0C00, 0x0C7F, // Telugu + 0x0C80, 0x0CFF, // Kannada + 0x0D00, 0x0D7F, // Malayalam + 0x0D80, 0x0DFF, // Sinhala + 0x0E00, 0x0E7F, // Thai + 0x0E80, 0x0EFF, // Lao + 0x0F00, 0x0FFF, // Tibetan + 0x1000, 0x109F, // Myanmar + 0x10A0, 0x10FF, // Georgian + 0x1100, 0x11FF, // Hangul Jamo + 0x1200, 0x137F, // Ethiopic + 0x1380, 0x139F, // Ethiopic Supplement + 0x13A0, 0x13FF, // Cherokee + 0x1400, 0x167F, // Unified Canadian Aboriginal Syllabics + 0x1680, 0x169F, // Ogham + 0x16A0, 0x16FF, // Runic + 0x1700, 0x171F, // Tagalog + 0x1720, 0x173F, // Hanunoo + 0x1740, 0x175F, // Buhid + 0x1760, 0x177F, // Tagbanwa + 0x1780, 0x17FF, // Khmer + 0x1800, 0x18AF, // Mongolian + 0x18B0, 0x18FF, // Unified Canadian Aboriginal Syllabics Extended + 0x1900, 0x194F, // Limbu + 0x1950, 0x197F, // Tai Le + 0x1980, 0x19DF, // New Tai Lue + 0x19E0, 0x19FF, // Khmer Symbols + 0x1A00, 0x1A1F, // Buginese + 0x1A20, 0x1AAF, // Tai Tham + 0x1B00, 0x1B7F, // Balinese + 0x1B80, 0x1BBF, // Sundanese + 0x1BC0, 0x1BFF, // Batak + 0x1C00, 0x1C4F, // Lepcha + 0x1C50, 0x1C7F, // Ol Chiki + 0x1CD0, 0x1CFF, // Vedic Extensions + 0x1D00, 0x1D7F, // Phonetic Extensions + 0x1D80, 0x1DBF, // Phonetic Extensions Supplement + 0x1DC0, 0x1DFF, // Combining Diacritical Marks Supplement + 0x1E00, 0x1EFF, // Latin Extended Additional + 0x1F00, 0x1FFF, // Greek Extended + 0x2000, 0x206F, // General Punctuation + 0x2070, 0x209F, // Superscripts and Subscripts + 0x20A0, 0x20CF, // Currency Symbols + 0x20D0, 0x20FF, // Combining Diacritical Marks for Symbols + 0x2100, 0x214F, // Letterlike Symbols + 0x2150, 0x218F, // Number Forms + 0x2190, 0x21FF, // Arrows + 0x2200, 0x22FF, // Mathematical Operators + 0x2300, 0x23FF, // Miscellaneous Technical + 0x2400, 0x243F, // Control Pictures + 0x2440, 0x245F, // Optical Character Recognition + 0x2460, 0x24FF, // Enclosed Alphanumerics + 0x2500, 0x257F, // Box Drawing + 0x2580, 0x259F, // Block Elements + 0x25A0, 0x25FF, // Geometric Shapes + 0x2600, 0x26FF, // Miscellaneous Symbols + 0x2700, 0x27BF, // Dingbats + 0x27C0, 0x27EF, // Miscellaneous Mathematical Symbols-A + 0x27F0, 0x27FF, // Supplemental Arrows-A + 0x2800, 0x28FF, // Braille Patterns + 0x2900, 0x297F, // Supplemental Arrows-B + 0x2980, 0x29FF, // Miscellaneous Mathematical Symbols-B + 0x2A00, 0x2AFF, // Supplemental Mathematical Operators + 0x2B00, 0x2BFF, // Miscellaneous Symbols and Arrows + 0x2C00, 0x2C5F, // Glagolitic + 0x2C60, 0x2C7F, // Latin Extended-C + 0x2C80, 0x2CFF, // Coptic + 0x2D00, 0x2D2F, // Georgian Supplement + 0x2D30, 0x2D7F, // Tifinagh + 0x2D80, 0x2DDF, // Ethiopic Extended + 0x2DE0, 0x2DFF, // Cyrillic Extended-A + 0x2E00, 0x2E7F, // Supplemental Punctuation + 0x2E80, 0x2EFF, // CJK Radicals Supplement + 0x2F00, 0x2FDF, // Kangxi Radicals + 0x2FF0, 0x2FFF, // Ideographic Description Characters + 0x3000, 0x303F, // CJK Symbols and Punctuation + 0x3040, 0x309F, // Hiragana + 0x30A0, 0x30FF, // Katakana + 0x3100, 0x312F, // Bopomofo + 0x3130, 0x318F, // Hangul Compatibility Jamo + 0x3190, 0x319F, // Kanbun + 0x31A0, 0x31BF, // Bopomofo Extended + 0x31C0, 0x31EF, // CJK Strokes + 0x31F0, 0x31FF, // Katakana Phonetic Extensions + 0x3200, 0x32FF, // Enclosed CJK Letters and Months + 0x3300, 0x33FF, // CJK Compatibility + 0x3400, 0x4DBF, // CJK Unified Ideographs Extension A + 0x4DC0, 0x4DFF, // Yijing Hexagram Symbols + 0x4E00, 0x9FFF, // CJK Unified Ideographs + 0xA000, 0xA48F, // Yi Syllables + 0xA490, 0xA4CF, // Yi Radicals + 0xA4D0, 0xA4FF, // Lisu + 0xA500, 0xA63F, // Vai + 0xA640, 0xA69F, // Cyrillic Extended-B + 0xA6A0, 0xA6FF, // Bamum + 0xA700, 0xA71F, // Modifier Tone Letters + 0xA720, 0xA7FF, // Latin Extended-D + 0xA800, 0xA82F, // Syloti Nagri + 0xA830, 0xA83F, // Common Indic Number Forms + 0xA840, 0xA87F, // Phags-pa + 0xA880, 0xA8DF, // Saurashtra + 0xA8E0, 0xA8FF, // Devanagari Extended + 0xA900, 0xA92F, // Kayah Li + 0xA930, 0xA95F, // Rejang + 0xA960, 0xA97F, // Hangul Jamo Extended-A + 0xA980, 0xA9DF, // Javanese + 0xAA00, 0xAA5F, // Cham + 0xAA60, 0xAA7F, // Myanmar Extended-A + 0xAA80, 0xAADF, // Tai Viet + 0xAB00, 0xAB2F, // Ethiopic Extended-A + 0xABC0, 0xABFF, // Meetei Mayek + 0xAC00, 0xD7AF, // Hangul Syllables + 0xD7B0, 0xD7FF, // Hangul Jamo Extended-B + //0xD800, 0xDB7F, // High Surrogates + //0xDB80, 0xDBFF, // High Private Use Surrogates + //0xDC00, 0xDFFF, // Low Surrogates + 0xE000, 0xF8FF, // Private Use Area + 0xF900, 0xFAFF, // CJK Compatibility Ideographs + 0xFB00, 0xFB4F, // Alphabetic Presentation Forms + 0xFB50, 0xFDFF, // Arabic Presentation Forms-A + 0xFE00, 0xFE0F, // Variation Selectors + 0xFE10, 0xFE1F, // Vertical Forms + 0xFE20, 0xFE2F, // Combining Half Marks + 0xFE30, 0xFE4F, // CJK Compatibility Forms + 0xFE50, 0xFE6F, // Small Form Variants + 0xFE70, 0xFEFF, // Arabic Presentation Forms-B + 0xFF00, 0xFFEF, // Halfwidth and Fullwidth Forms + 0xFFF0, 0xFFFF, // Specials + 0x10000, 0x1007F, // Linear B Syllabary + 0x10080, 0x100FF, // Linear B Ideograms + 0x10100, 0x1013F, // Aegean Numbers + 0x10140, 0x1018F, // Ancient Greek Numbers + 0x10190, 0x101CF, // Ancient Symbols + 0x101D0, 0x101FF, // Phaistos Disc + 0x10280, 0x1029F, // Lycian + 0x102A0, 0x102DF, // Carian + 0x10300, 0x1032F, // Old Italic + 0x10330, 0x1034F, // Gothic + 0x10380, 0x1039F, // Ugaritic + 0x103A0, 0x103DF, // Old Persian + 0x10400, 0x1044F, // Deseret + 0x10450, 0x1047F, // Shavian + 0x10480, 0x104AF, // Osmanya + 0x10800, 0x1083F, // Cypriot Syllabary + 0x10840, 0x1085F, // Imperial Aramaic + 0x10900, 0x1091F, // Phoenician + 0x10920, 0x1093F, // Lydian + 0x10A00, 0x10A5F, // Kharoshthi + 0x10A60, 0x10A7F, // Old South Arabian + 0x10B00, 0x10B3F, // Avestan + 0x10B40, 0x10B5F, // Inscriptional Parthian + 0x10B60, 0x10B7F, // Inscriptional Pahlavi + 0x10C00, 0x10C4F, // Old Turkic + 0x10E60, 0x10E7F, // Rumi Numeral Symbols + 0x11000, 0x1107F, // Brahmi + 0x11080, 0x110CF, // Kaithi + 0x12000, 0x123FF, // Cuneiform + 0x12400, 0x1247F, // Cuneiform Numbers and Punctuation + 0x13000, 0x1342F, // Egyptian Hieroglyphs + 0x16800, 0x16A3F, // Bamum Supplement + 0x1B000, 0x1B0FF, // Kana Supplement + 0x1D000, 0x1D0FF, // Byzantine Musical Symbols + 0x1D100, 0x1D1FF, // Musical Symbols + 0x1D200, 0x1D24F, // Ancient Greek Musical Notation + 0x1D300, 0x1D35F, // Tai Xuan Jing Symbols + 0x1D360, 0x1D37F, // Counting Rod Numerals + 0x1D400, 0x1D7FF, // Mathematical Alphanumeric Symbols + 0x1F000, 0x1F02F, // Mahjong Tiles + 0x1F030, 0x1F09F, // Domino Tiles + 0x1F0A0, 0x1F0FF, // Playing Cards + 0x1F100, 0x1F1FF, // Enclosed Alphanumeric Supplement + 0x1F200, 0x1F2FF, // Enclosed Ideographic Supplement + 0x1F300, 0x1F5FF, // Miscellaneous Symbols And Pictographs + 0x1F600, 0x1F64F, // Emoticons + 0x1F680, 0x1F6FF, // Transport And Map Symbols + 0x1F700, 0x1F77F, // Alchemical Symbols + 0x20000, 0x2A6DF, // CJK Unified Ideographs Extension B + 0x2A700, 0x2B73F, // CJK Unified Ideographs Extension C + 0x2B740, 0x2B81F, // CJK Unified Ideographs Extension D + 0x2F800, 0x2FA1F, // CJK Compatibility Ideographs Supplement + 0xE0000, 0xE007F, // Tags + 0xE0100, 0xE01EF, // Variation Selectors Supplement + 0xF0000, 0xFFFFF, // Supplementary Private Use Area-A + 0x100000, 0x10FFFF, // Supplementary Private Use Area-B + 0xFFFFFFFF +}; + +// Copyright (c) 2008-2010 Bjoern Hoehrmann <bjoern@hoehrmann.de> +// See http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ for details. + +#define UTF8_ACCEPT 0u + +static const unsigned char utf8d[] = { + // The first part of the table maps bytes to character classes that + // to reduce the size of the transition table and create bitmasks. + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, + 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, + 8,8,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, + 10,3,3,3,3,3,3,3,3,3,3,3,3,4,3,3, 11,6,6,6,5,8,8,8,8,8,8,8,8,8,8,8, + + // The second part is a transition table that maps a combination + // of a state of the automaton and a character class to a state. + 0,12,24,36,60,96,84,12,12,12,48,72, 12,12,12,12,12,12,12,12,12,12,12,12, + 12, 0,12,12,12,12,12, 0,12, 0,12,12, 12,24,12,12,12,12,12,24,12,24,12,12, + 12,12,12,12,12,12,12,24,12,12,12,12, 12,24,12,12,12,12,12,12,12,24,12,12, + 12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12, + 12,36,12,12,12,12,12,12,12,12,12,12, +}; + +static unsigned inline decode(unsigned* state, unsigned* codep, unsigned byte) { + unsigned type = utf8d[byte]; + + *codep = (*state != UTF8_ACCEPT) ? + (byte & 0x3fu) | (*codep << 6) : + (0xffu >> type) & (byte); + + *state = utf8d[256 + *state + type]; + return *state; +} + +//static bool IsUTF8(unsigned char* s) { +// unsigned codepoint, state = 0; +// +// while (*s) +// decode(&state, &codepoint, *s++); +// +// return state == UTF8_ACCEPT; +//} + +TEST(EncodingsTest, UTF8) { + StringBuffer os, os2; + for (const unsigned* range = kCodepointRanges; *range != 0xFFFFFFFF; range += 2) { + for (unsigned codepoint = range[0]; codepoint <= range[1]; ++codepoint) { + os.Clear(); + UTF8<>::Encode(os, codepoint); + const char* encodedStr = os.GetString(); + + // Decode with Hoehrmann + { + unsigned decodedCodepoint = 0; + unsigned state = 0; + + unsigned decodedCount = 0; + for (const char* s = encodedStr; *s; ++s) + if (!decode(&state, &decodedCodepoint, static_cast<unsigned char>(*s))) { + EXPECT_EQ(codepoint, decodedCodepoint); + decodedCount++; + } + + if (*encodedStr) { // This decoder cannot handle U+0000 + EXPECT_EQ(1u, decodedCount); // Should only contain one code point + } + + EXPECT_EQ(UTF8_ACCEPT, state); + if (UTF8_ACCEPT != state) + std::cout << std::hex << codepoint << " " << decodedCodepoint << std::endl; + } + + // Decode + { + StringStream is(encodedStr); + unsigned decodedCodepoint; + bool result = UTF8<>::Decode(is, &decodedCodepoint); + EXPECT_TRUE(result); + EXPECT_EQ(codepoint, decodedCodepoint); + if (!result || codepoint != decodedCodepoint) + std::cout << std::hex << codepoint << " " << decodedCodepoint << std::endl; + } + + // Validate + { + StringStream is(encodedStr); + os2.Clear(); + bool result = UTF8<>::Validate(is, os2); + EXPECT_TRUE(result); + EXPECT_EQ(0, StrCmp(encodedStr, os2.GetString())); + } + } + } +} + +TEST(EncodingsTest, UTF16) { + GenericStringBuffer<UTF16<> > os, os2; + GenericStringBuffer<UTF8<> > utf8os; + for (const unsigned* range = kCodepointRanges; *range != 0xFFFFFFFF; range += 2) { + for (unsigned codepoint = range[0]; codepoint <= range[1]; ++codepoint) { + os.Clear(); + UTF16<>::Encode(os, codepoint); + const UTF16<>::Ch* encodedStr = os.GetString(); + + // Encode with Hoehrmann's code + if (codepoint != 0) // cannot handle U+0000 + { + // encode with UTF8<> first + utf8os.Clear(); + UTF8<>::Encode(utf8os, codepoint); + + // transcode from UTF8 to UTF16 with Hoehrmann's code + unsigned decodedCodepoint = 0; + unsigned state = 0; + UTF16<>::Ch buffer[3], *p = &buffer[0]; + for (const char* s = utf8os.GetString(); *s; ++s) { + if (!decode(&state, &decodedCodepoint, static_cast<unsigned char>(*s))) + break; + } + + if (codepoint <= 0xFFFF) + *p++ = static_cast<UTF16<>::Ch>(decodedCodepoint); + else { + // Encode code points above U+FFFF as surrogate pair. + *p++ = static_cast<UTF16<>::Ch>(0xD7C0 + (decodedCodepoint >> 10)); + *p++ = static_cast<UTF16<>::Ch>(0xDC00 + (decodedCodepoint & 0x3FF)); + } + *p++ = '\0'; + + EXPECT_EQ(0, StrCmp(buffer, encodedStr)); + } + + // Decode + { + GenericStringStream<UTF16<> > is(encodedStr); + unsigned decodedCodepoint; + bool result = UTF16<>::Decode(is, &decodedCodepoint); + EXPECT_TRUE(result); + EXPECT_EQ(codepoint, decodedCodepoint); + if (!result || codepoint != decodedCodepoint) + std::cout << std::hex << codepoint << " " << decodedCodepoint << std::endl; + } + + // Validate + { + GenericStringStream<UTF16<> > is(encodedStr); + os2.Clear(); + bool result = UTF16<>::Validate(is, os2); + EXPECT_TRUE(result); + EXPECT_EQ(0, StrCmp(encodedStr, os2.GetString())); + } + } + } +} + +TEST(EncodingsTest, UTF32) { + GenericStringBuffer<UTF32<> > os, os2; + for (const unsigned* range = kCodepointRanges; *range != 0xFFFFFFFF; range += 2) { + for (unsigned codepoint = range[0]; codepoint <= range[1]; ++codepoint) { + os.Clear(); + UTF32<>::Encode(os, codepoint); + const UTF32<>::Ch* encodedStr = os.GetString(); + + // Decode + { + GenericStringStream<UTF32<> > is(encodedStr); + unsigned decodedCodepoint; + bool result = UTF32<>::Decode(is, &decodedCodepoint); + EXPECT_TRUE(result); + EXPECT_EQ(codepoint, decodedCodepoint); + if (!result || codepoint != decodedCodepoint) + std::cout << std::hex << codepoint << " " << decodedCodepoint << std::endl; + } + + // Validate + { + GenericStringStream<UTF32<> > is(encodedStr); + os2.Clear(); + bool result = UTF32<>::Validate(is, os2); + EXPECT_TRUE(result); + EXPECT_EQ(0, StrCmp(encodedStr, os2.GetString())); + } + } + } +} + +TEST(EncodingsTest, ASCII) { + StringBuffer os, os2; + for (unsigned codepoint = 0; codepoint < 128; codepoint++) { + os.Clear(); + ASCII<>::Encode(os, codepoint); + const ASCII<>::Ch* encodedStr = os.GetString(); + { + StringStream is(encodedStr); + unsigned decodedCodepoint; + bool result = ASCII<>::Decode(is, &decodedCodepoint); + if (!result || codepoint != decodedCodepoint) + std::cout << std::hex << codepoint << " " << decodedCodepoint << std::endl; + } + + // Validate + { + StringStream is(encodedStr); + os2.Clear(); + bool result = ASCII<>::Validate(is, os2); + EXPECT_TRUE(result); + EXPECT_EQ(0, StrCmp(encodedStr, os2.GetString())); + } + } +} |