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chm.hexpat
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#pragma author WerWolv
#pragma description Windows HtmlHelp Data (ITSF / CHM)
#pragma MIME application/vnd.ms-htmlhelp
import type.magic;
import type.size;
import type.guid;
import type.leb128;
import std.sys;
enum WindowsLanguageId : u32 {
Arabic_SaudiArabia = 0x401,
Arabic_Iraq = 0x801,
Arabic_Egypt = 0xc01,
Arabic_Libya = 0x1001,
Arabic_Algeria = 0x1401,
Arabic_Morocco = 0x1801,
Arabic_Tunisia = 0x1c01,
Arabic_Oman = 0x2001,
Arabic_Yemen = 0x2401,
Arabic_Syria = 0x2801,
Arabic_Jordan = 0x2c01,
Arabic_Lebanon = 0x3001,
Arabic_Kuwait = 0x3401,
Arabic_UAE = 0x3801,
Arabic_Bahrain = 0x3c01,
Arabic_Qatar = 0x4001,
Bulgarian = 0x402,
Catalan = 0x403,
Valencian = 0x803,
Chinese_Taiwan = 0x404,
Chinese_PRC = 0x804,
Chinese_HongKongSAR = 0xc04,
Chinese_Singapore = 0x1004,
Chinese_MacaoSAR = 0x1404,
Czech = 0x405,
Danish = 0x406,
German_Germany = 0x407,
German_Switzerland = 0x807,
German_Austria = 0xc07,
German_Luxembourg = 0x1007,
German_Liechtenstein = 0x1407,
Greek = 0x408,
English_UnitedStates = 0x409,
English_UnitedKingdom = 0x809,
English_Australia = 0xc09,
English_Canada = 0x1009,
English_NewZealand = 0x1409,
English_Ireland = 0x1809,
English_SouthAfrica = 0x1c09,
English_Jamaica = 0x2009,
English_Caribbean = 0x2409,
English_Belize = 0x2809,
English_TrinidadandTobago = 0x2c09,
English_Zimbabwe = 0x3009,
English_Philippines = 0x3409,
English_Indonesia = 0x3809,
English_HongKongSAR = 0x3c09,
English_India = 0x4009,
English_Malaysia = 0x4409,
English_Singapore = 0x4809,
Spanish_SpainTraditionalSort = 0x40a,
Spanish_Mexico = 0x80a,
Spanish_Spain = 0xc0a,
Spanish_Guatemala = 0x100a,
Spanish_CostaRica = 0x140a,
Spanish_Panama = 0x180a,
Spanish_DominicanRepublic = 0x1c0a,
Spanish_Venezuela = 0x200a,
Spanish_Colombia = 0x240a,
Spanish_Peru = 0x280a,
Spanish_Argentina = 0x2c0a,
Spanish_Ecuador = 0x300a,
Spanish_Chile = 0x340a,
Spanish_Uruguay = 0x380a,
Spanish_Paraguay = 0x3c0a,
Spanish_Bolivia = 0x400a,
Spanish_ElSalvador = 0x440a,
Spanish_Honduras = 0x480a,
Spanish_Nicaragua = 0x4c0a,
Spanish_PuertoRico = 0x500a,
Spanish_UnitedStates = 0x540a,
Spanish_LatinAmerica = 0x580a,
Finnish = 0x40b,
French_France = 0x40c,
French_Belgium = 0x80c,
French_Canada = 0xc0c,
French_Switzerland = 0x100c,
French_Luxembourg = 0x140c,
French_Monaco = 0x180c,
French_Caribbean = 0x1c0c,
French_Reunion = 0x200c,
French_CongoDRC = 0x240c,
French_Senegal = 0x280c,
French_Cameroon = 0x2c0c,
French_CoteDIvoire = 0x300c,
French_Mali = 0x340c,
French_Morocco = 0x380c,
French_Haiti = 0x3c0c,
Hebrew = 0x40d,
Hungarian = 0x40e,
Icelandic = 0x40f,
Italian_Italy = 0x410,
Italian_Switzerland = 0x810,
Japanese = 0x411,
Korean = 0x412,
Dutch_Netherlands = 0x413,
Dutch_Belgium = 0x813,
Norwegian_Bokmal = 0x414,
Norwegian_Nynorsk = 0x814,
Polish = 0x415,
Portuguese_Brazil = 0x416,
Portuguese_Portugal = 0x816,
Romansh = 0x417,
Romanian = 0x418,
Romanian_Moldova = 0x818,
Russian = 0x419,
Russian_Moldova = 0x819,
Croatian_Croatia = 0x41a,
Serbian_LatinSerbiaandMontenegroFormer = 0x81a,
Serbian_CyrillicSerbiaAndMontenegroFormer = 0xc1a,
Croatian_BosniaAndHerzegovina = 0x101a,
Bosnian_Latin = 0x141a,
Serbian_LatinBosniaAndHerzegovina = 0x181a,
Serbian_CyrillicBosniaAndHerzegovina = 0x1c1a,
Bosnian_Cyrillic = 0x201a,
Serbian_LatinSerbia = 0x241a,
Serbian_CyrillicSerbia = 0x281a,
Serbian_LatinMontenegro = 0x2c1a,
Serbian_CyrillicMontenegro = 0x301a,
Slovak = 0x41b,
Albanian = 0x41c,
Swedish_Sweden = 0x41d,
Swedish_Finland = 0x81d,
Thai = 0x41e,
Turkish = 0x41f,
Urdu_Pakistan = 0x420,
Urdu_India = 0x820,
Indonesian = 0x421,
Ukrainian = 0x422,
Belarusian = 0x423,
Slovenian = 0x424,
Estonian = 0x425,
Latvian = 0x426,
Lithuanian = 0x427,
Tajik = 0x428,
Persian = 0x429,
Vietnamese = 0x42a,
Armenian = 0x42b,
Azerbaijani_Latin = 0x42c,
Azerbaijani_Cyrillic = 0x82c,
Basque = 0x42d,
UpperSorbian = 0x42e,
LowerSorbian = 0x82e,
Macedonian = 0x42f,
Sesotho_SouthAfrica = 0x430,
Xitsonga = 0x431,
Setswana_SouthAfrica = 0x432,
Setswana_Botswana = 0x832,
Venda = 0x433,
isiXhosa = 0x434,
isiZulu = 0x435,
Afrikaans = 0x436,
Georgian = 0x437,
Faroese = 0x438,
Hindi = 0x439,
Maltese = 0x43a,
NorthernSami_Norway = 0x43b,
NorthernSami_Sweden = 0x83b,
NorthernSami_Finland = 0xc3b,
LuleSami_Norway = 0x103b,
LuleSami_Sweden = 0x143b,
SouthernSami_Norway = 0x183b,
SouthernSami_Sweden = 0x1c3b,
SkoltSami_Finland = 0x203b,
InariSami_Finland = 0x243b,
Irish = 0x83c,
Yiddish = 0x43d,
Malay_Malaysia = 0x43e,
Malay_BruneiDarussalam = 0x83e,
Kazakh = 0x43f,
Kyrgyz = 0x440,
Kiswahili = 0x441,
Turkmen = 0x442,
Uzbek_Latin = 0x443,
Uzbek_Cyrillic = 0x843,
Tatar = 0x444,
Bangla_India = 0x445,
Bangla_Bangladesh = 0x845,
Punjabi_India = 0x446,
Punjabi_Pakistan = 0x846,
Gujarati = 0x447,
Odia = 0x448,
Tamil_India = 0x449,
Tamil_SriLanka = 0x849,
Telugu = 0x44a,
Kannada = 0x44b,
Malayalam = 0x44c,
Assamese = 0x44d,
Marathi = 0x44e,
Sanskrit = 0x44f,
Mongolian_Cyrillic = 0x450,
Mongolian_TraditionalMongolianPRC = 0x850,
Mongolian_TraditionalMongolianMongolia = 0xc50,
Tibetan_PRC = 0x451,
Welsh = 0x452,
Khmer = 0x453,
Lao = 0x454,
Burmese = 0x455,
Galician = 0x456,
Konkani = 0x457,
Manipuri = 0x458,
Sindhi_Devanagari = 0x459,
Sindhi_Arabic = 0x859,
Syriac = 0x45a,
Sinhala = 0x45b,
Cherokee_Cherokee = 0x45c,
Inuktitut_Syllabics = 0x45d,
Inuktitut_Latin = 0x85d,
Amharic = 0x45e,
Tamazight_ArabicMorocco = 0x45f,
Tamazight_LatinAlgeria = 0x85f,
Tamazight_TifinaghMorocco = 0x105f,
Kashmiri_Arabic = 0x460,
Kashmiri = 0x860,
Nepali = 0x461,
Nepali_India = 0x861,
Frisian = 0x462,
Pashto = 0x463,
Filipino = 0x464,
Divehi = 0x465,
Edo = 0x466,
Fulah_Nigeria = 0x467,
Fulah_LatinSenegal = 0x867,
Hausa = 0x468,
Ibibio_Nigeria = 0x469,
Yoruba = 0x46a,
Quechua_Bolivia = 0x46b,
Quechua_Ecuador = 0x86b,
Quechua_Peru = 0xc6b,
SesothoSaLeboa = 0x46c,
Bashkir = 0x46d,
Luxembourgish = 0x46e,
Greenlandic = 0x46f,
Igbo = 0x470,
Kanuri = 0x471,
Oromo = 0x472,
Tigrinya_Ethiopia = 0x473,
Tigrinya_Eritrea = 0x873,
Guarani = 0x474,
Hawaiian = 0x475,
Latin = 0x476,
Somali = 0x477,
Yi_PRC = 0x478,
Papiamentu = 0x479,
Mapudungun = 0x47a,
Mohawk = 0x47c,
Breton = 0x47e,
Uyghur_PRC = 0x480,
Maori = 0x481,
Occitan = 0x482,
Corsican = 0x483,
Alsatian = 0x484,
Sakha = 0x485,
Kiche = 0x486,
Kinyarwanda = 0x487,
Wolof = 0x488,
Dari = 0x48c,
ScottishGaelic_UnitedKingdom = 0x491,
CentralKurdish_Iraq = 0x492
};
struct DirectoryListingEntry {
type::LEB128 nameLength;
char name[nameLength];
type::LEB128 contentSection;
type::LEB128 offset;
type::LEB128 length;
};
struct DirectoryIndexEntry {
type::LEB128 nameLength;
char name[nameLength];
type::LEB128 directoryListingChunk;
};
struct ListingChunk {
char magic[4];
if (magic == "PMGL") {
type::Size<u32> freeSpaceLength;
u32;
u32 prevChunkNumber, nextChunkNumber;
u16 directoryListingEntryCount @ addressof(this) + parent.directoryChunkSize - 2;
u16 offsets[(freeSpaceLength - 2) / 2] @ addressof(directoryListingEntryCount) - (freeSpaceLength - 2);
DirectoryListingEntry directories[directoryListingEntryCount];
$ = addressof(directoryListingEntryCount) + sizeof(directoryListingEntryCount);
} else if (magic == "PMGI") {
type::Size<u32> freeSpaceLength;
u16 directoryIndexEntryCount @ addressof(this) + parent.directoryChunkSize - 2;
u16 offsets[(freeSpaceLength - 2) / 2] @ addressof(directoryIndexEntryCount) - (freeSpaceLength - 2);
DirectoryIndexEntry indexes[directoryIndexEntryCount];
$ = addressof(directoryIndexEntryCount) + sizeof(directoryIndexEntryCount);
} else {
std::error("Invalid chunk magic!");
}
};
struct HeaderSection {
char magic[4];
if (magic == "\xFE\x01\x00\x00") {
u32;
type::Size<u64> fileSize;
u32;
u32;
} else if (magic == "ITSP") {
u32 version;
type::Size<u32> directoryHeaderLength1;
u32;
u32 directoryChunkSize;
u32 quickRefSectionDensity;
u32 indexTreeDepth;
u32 rootIndexChunkNumber;
u32 firstPMGLChunkNumber;
u32 lastPMGLChunkNumber;
u32;
u32 directoryChunkCount;
WindowsLanguageId languageId;
type::GUID guid;
type::Size<u32> directoryHeaderLength2;
u32;
u32;
u32;
ListingChunk chunk[directoryChunkCount];
} else {
std::error("Invalid header section magic!");
}
};
struct HeaderSectionTableEntry {
u64 offset;
type::Size<u64> size;
HeaderSection headerSection @ offset;
};
struct NameListEntry {
type::Size<u16> nameLength;
char16 name[nameLength];
padding[2];
};
struct NameListFile {
u16 fileLengthWords;
u16 entriesInFile;
NameListEntry nameList[entriesInFile];
padding[0x2E];
};
struct SectionData {
u32 fileLengthWords;
type::Magic<"LZXC"> magic;
u32 version;
u32 lzxResetInterval;
type::Size<u32> windowSize;
type::Size<u32> cacheSize;
u32;
};
struct Content {
NameListFile nameListFile;
SectionData sectionData;
};
struct CHM {
type::Magic<"ITSF"> magic;
u32 version;
type::Size<u32> headerSize;
u32;
be u32 timeStamp;
WindowsLanguageId languageId;
type::GUID guids[2];
HeaderSectionTableEntry headerSectionTable[2];
Content *dataOffset : u64;
};
CHM chm @ 0x00;