The Effects of €å“not Knowing What You Don㢂¬„¢t Know㢂¬ on Web Accessibility for Blind Web Users

Garbled text as a upshot of incorrect character encoding

Mojibake ( 文字化け ; IPA: [mod͡ʑibake]) is the garbled text that is the event of text beingness decoded using an unintended character encoding.^[i] The result is a systematic replacement of symbols with completely unrelated ones, often from a unlike writing system.

This display may include the generic replacement character ("�") in places where the binary representation is considered invalid. A replacement tin also involve multiple consecutive symbols, equally viewed in one encoding, when the same binary lawmaking constitutes one symbol in the other encoding. This is either because of differing abiding length encoding (every bit in Asian 16-bit encodings vs European 8-bit encodings), or the use of variable length encodings (notably UTF-viii and UTF-16).

Failed rendering of glyphs due to either missing fonts or missing glyphs in a font is a dissimilar upshot that is not to be confused with mojibake. Symptoms of this failed rendering include blocks with the code point displayed in hexadecimal or using the generic replacement character. Importantly, these replacements are valid and are the result of correct fault handling past the software.

Etymology [edit]

Mojibake means "graphic symbol transformation" in Japanese. The give-and-take is composed of 文字 (moji, IPA: [mod͡ʑi]), "grapheme" and 化け (bake, IPA: [bäke̞], pronounced "bah-keh"), "transform".

Causes [edit]

To correctly reproduce the original text that was encoded, the correspondence between the encoded data and the notion of its encoding must be preserved. As mojibake is the case of not-compliance between these, it can exist accomplished by manipulating the data itself, or just relabeling information technology.

Mojibake is ofttimes seen with text information that have been tagged with a incorrect encoding; it may non even exist tagged at all, but moved betwixt computers with different default encodings. A major source of trouble are communication protocols that rely on settings on each calculator rather than sending or storing metadata together with the data.

The differing default settings between computers are in part due to differing deployments of Unicode among operating organisation families, and partly the legacy encodings' specializations for unlike writing systems of human languages. Whereas Linux distributions mostly switched to UTF-eight in 2004,^[2] Microsoft Windows generally uses UTF-xvi, and sometimes uses eight-scrap code pages for text files in unlike languages.^{[ dubious – discuss ]}

For some writing systems, an example being Japanese, several encodings have historically been employed, causing users to see mojibake relatively often. Equally a Japanese instance, the give-and-take mojibake "文字化け" stored as EUC-JP might be incorrectly displayed as "ﾊｸｻ�ｽ､ｱ", "ﾊｸｻ嵂ｽ､ｱ" (MS-932), or "ﾊｸｻ郾ｽ､ｱ" (Shift JIS-2004). The same text stored as UTF-8 is displayed equally "譁�蟄怜喧縺�" if interpreted as Shift JIS. This is farther exacerbated if other locales are involved: the same UTF-viii text appears equally "文字化ã'" in software that assumes text to be in the Windows-1252 or ISO-8859-one encodings, normally labelled Western, or (for example) equally "鏂囧瓧鍖栥亼" if interpreted as being in a GBK (Cathay) locale.

Mojibake instance

Original text	文		字		化		け
Raw bytes of EUC-JP encoding	CA	B8	BB	FA	B2	BD	A4	B1
Bytes interpreted every bit Shift-JIS encoding	ﾊ	ｸ	ｻ	郾		ｽ	､	ｱ
Bytes interpreted as ISO-8859-1 encoding	Ê	¸	»	ú	²	½	¤	±
Bytes interpreted as GBK encoding	矢		机		步		け

Underspecification [edit]

If the encoding is not specified, information technology is upwards to the software to make up one's mind it by other means. Depending on the type of software, the typical solution is either configuration or charset detection heuristics. Both are decumbent to mis-prediction in not-then-uncommon scenarios.

The encoding of text files is affected by locale setting, which depends on the user's linguistic communication, brand of operating system and possibly other atmospheric condition. Therefore, the assumed encoding is systematically wrong for files that come from a figurer with a different setting, or even from a differently localized software within the aforementioned system. For Unicode, one solution is to use a byte order mark, simply for source lawmaking and other auto readable text, many parsers don't tolerate this. Another is storing the encoding as metadata in the file organization. File systems that support extended file attributes tin can store this as user.charset.^[3] This also requires back up in software that wants to take reward of it, merely does not disturb other software.

While a few encodings are easy to detect, in particular UTF-8, there are many that are hard to distinguish (run across charset detection). A web browser may non be able to distinguish a page coded in EUC-JP and some other in Shift-JIS if the coding scheme is not assigned explicitly using HTTP headers sent forth with the documents, or using the HTML document's meta tags that are used to substitute for missing HTTP headers if the server cannot exist configured to send the proper HTTP headers; see character encodings in HTML.

Mis-specification [edit]

Mojibake also occurs when the encoding is wrongly specified. This often happens between encodings that are similar. For example, the Eudora e-mail client for Windows was known to send emails labelled as ISO-8859-1 that were in reality Windows-1252.^[4] The Mac Bone version of Eudora did not exhibit this behaviour. Windows-1252 contains extra printable characters in the C1 range (the almost often seen being curved quotation marks and extra dashes), that were non displayed properly in software complying with the ISO standard; this particularly affected software running under other operating systems such as Unix.

Human being ignorance [edit]

Of the encodings still in utilise, many are partially compatible with each other, with ASCII equally the predominant mutual subset. This sets the stage for human ignorance:

• Compatibility tin be a deceptive property, equally the common subset of characters is unaffected by a mixup of two encodings (see Problems in different writing systems).
• People think they are using ASCII, and tend to label whatever superset of ASCII they really use every bit "ASCII". Maybe for simplification, simply even in academic literature, the word "ASCII" can be found used as an example of something not compatible with Unicode, where patently "ASCII" is Windows-1252 and "Unicode" is UTF-viii.^[1] Note that UTF-viii is backwards compatible with ASCII.

Overspecification [edit]

When there are layers of protocols, each trying to specify the encoding based on different information, the least sure information may be misleading to the recipient. For example, consider a web server serving a static HTML file over HTTP. The character prepare may be communicated to the client in any number of iii means:

• in the HTTP header. This information can be based on server configuration (for example, when serving a file off disk) or controlled by the awarding running on the server (for dynamic websites).
• in the file, every bit an HTML meta tag (http-equiv or charset) or the encoding attribute of an XML annunciation. This is the encoding that the author meant to save the item file in.
• in the file, every bit a byte order mark. This is the encoding that the author's editor actually saved it in. Unless an accidental encoding conversion has happened (past opening it in ane encoding and saving it in another), this will be right. Information technology is, nonetheless, only bachelor in Unicode encodings such as UTF-8 or UTF-xvi.

Lack of hardware or software support [edit]

Much older hardware is typically designed to support only i character set and the character set typically cannot be altered. The character table contained within the display firmware will be localized to accept characters for the state the device is to be sold in, and typically the table differs from country to country. As such, these systems will potentially brandish mojibake when loading text generated on a organization from a dissimilar country. Likewise, many early operating systems do not support multiple encoding formats and thus will end up displaying mojibake if made to display non-standard text—early versions of Microsoft Windows and Palm Os for example, are localized on a per-country basis and volition only support encoding standards relevant to the country the localized version volition be sold in, and will brandish mojibake if a file containing a text in a dissimilar encoding format from the version that the Os is designed to support is opened.

Resolutions [edit]

Applications using UTF-8 as a default encoding may achieve a greater degree of interoperability considering of its widespread employ and astern compatibility with U.s.a.-ASCII. UTF-8 too has the power to be directly recognised by a elementary algorithm, so that well written software should be able to avoid mixing UTF-8 upward with other encodings.

The difficulty of resolving an instance of mojibake varies depending on the application within which it occurs and the causes of it. Two of the most common applications in which mojibake may occur are web browsers and word processors. Modern browsers and discussion processors often support a broad array of character encodings. Browsers often let a user to change their rendering engine's encoding setting on the fly, while word processors allow the user to select the advisable encoding when opening a file. It may take some trial and error for users to find the correct encoding.

The problem gets more complicated when it occurs in an application that usually does not support a wide range of graphic symbol encoding, such as in a non-Unicode reckoner game. In this case, the user must change the operating system'south encoding settings to friction match that of the game. However, changing the system-wide encoding settings tin also cause Mojibake in pre-existing applications. In Windows XP or later, a user also has the choice to use Microsoft AppLocale, an application that allows the changing of per-application locale settings. Still, changing the operating system encoding settings is not possible on earlier operating systems such every bit Windows 98; to resolve this result on earlier operating systems, a user would have to utilise third party font rendering applications.

Issues in different writing systems [edit]

English language [edit]

Mojibake in English texts generally occurs in punctuation, such as em dashes (—), en dashes (–), and curly quotes (",",','), but rarely in character text, since nearly encodings concur with ASCII on the encoding of the English alphabet. For example, the pound sign "£" volition announced equally "£" if it was encoded by the sender as UTF-8 simply interpreted by the recipient as CP1252 or ISO 8859-1. If iterated using CP1252, this can pb to "£", "£", "ÃÆ'‚£", etc.

Some computers did, in older eras, have vendor-specific encodings which caused mismatch also for English text. Commodore brand 8-fleck computers used PETSCII encoding, particularly notable for inverting the upper and lower case compared to standard ASCII. PETSCII printers worked fine on other computers of the era, but flipped the instance of all letters. IBM mainframes use the EBCDIC encoding which does not match ASCII at all.

Other Western European languages [edit]

The alphabets of the Due north Germanic languages, Catalan, Finnish, German, French, Portuguese and Castilian are all extensions of the Latin alphabet. The additional characters are typically the ones that become corrupted, making texts only mildly unreadable with mojibake:

• å, ä, ö in Finnish and Swedish
• à, ç, è, é, ï, í, ò, ó, ú, ü in Catalan
• æ, ø, å in Norwegian and Danish
• á, é, ó, ij, è, ë, ï in Dutch
• ä, ö, ü, and ß in German
• á, ð, í, ó, ú, ý, æ, ø in Faroese
• á, ð, é, í, ó, ú, ý, þ, æ, ö in Icelandic
• à, â, ç, è, é, ë, ê, ï, î, ô, ù, û, ü, ÿ, æ, œ in French
• à, è, é, ì, ò, ù in Italian
• á, é, í, ñ, ó, ú, ü, ¡, ¿ in Spanish
• à, á, â, ã, ç, é, ê, í, ó, ô, õ, ú in Portuguese (ü no longer used)
• á, é, í, ó, ú in Irish
• à, è, ì, ò, ù in Scottish Gaelic
• £ in British English language

… and their uppercase counterparts, if applicable.

These are languages for which the ISO-8859-1 character set (also known every bit Latin i or Western) has been in utilise. However, ISO-8859-1 has been obsoleted past ii competing standards, the backward uniform Windows-1252, and the slightly altered ISO-8859-15. Both add the Euro sign € and the French œ, but otherwise whatever confusion of these three character sets does non create mojibake in these languages. Furthermore, it is e'er condom to interpret ISO-8859-1 as Windows-1252, and fairly safe to interpret information technology as ISO-8859-15, in particular with respect to the Euro sign, which replaces the rarely used currency sign (¤). However, with the advent of UTF-8, mojibake has go more than mutual in certain scenarios, east.g. exchange of text files between UNIX and Windows computers, due to UTF-viii's incompatibility with Latin-i and Windows-1252. But UTF-8 has the ability to be direct recognised past a simple algorithm, so that well written software should be able to avoid mixing UTF-viii upwards with other encodings, then this was most mutual when many had software non supporting UTF-8. About of these languages were supported by MS-DOS default CP437 and other car default encodings, except ASCII, and so problems when buying an operating system version were less mutual. Windows and MS-DOS are not compatible yet.

In Swedish, Norwegian, Danish and German, vowels are rarely repeated, and it is usually obvious when one character gets corrupted, e.yard. the second letter in "kÃ⁠¤rlek" ( kärlek , "honey"). This fashion, fifty-fifty though the reader has to gauge between å, ä and ö, nigh all texts remain legible. Finnish text, on the other hand, does feature repeating vowels in words similar hääyö ("wedding nighttime") which can sometimes render text very hard to read (e.g. hääyö appears as "hÃ⁠¤Ã⁠¤yÃ⁠¶"). Icelandic and Faroese have 10 and eight possibly confounding characters, respectively, which thus can make it more difficult to guess corrupted characters; Icelandic words like þjóðlöð ("outstanding hospitality") become almost entirely unintelligible when rendered as "þjóðlöð".

In German, Buchstabensalat ("letter of the alphabet salad") is a common term for this phenomenon, and in Spanish, deformación (literally deformation).

Some users transliterate their writing when using a computer, either by omitting the problematic diacritics, or by using digraph replacements (å → aa, ä/æ → ae, ö/ø → oe, ü → ue etc.). Thus, an writer might write "ueber" instead of "über", which is standard practice in German when umlauts are not bachelor. The latter exercise seems to be better tolerated in the German language sphere than in the Nordic countries. For instance, in Norwegian, digraphs are associated with archaic Danish, and may be used jokingly. All the same, digraphs are useful in communication with other parts of the world. As an example, the Norwegian football game player Ole Gunnar Solskjær had his name spelled "SOLSKJAER" on his back when he played for Manchester United.

An artifact of UTF-eight misinterpreted as ISO-8859-1, "Band meg nÃ¥" (" Ring meg nå "), was seen in an SMS scam raging in Norway in June 2014.^[five]

Examples

Swedish example:		Smörgås (open sandwich)
File encoding	Setting in browser	Result
MS-DOS 437	ISO 8859-i	Sm"rg†southward
ISO 8859-i	Mac Roman	SmˆrgÂs
UTF-8	ISO 8859-1	Smörgås
UTF-8	Mac Roman	Smörgådue south

Primal and Eastern European [edit]

Users of Central and Eastern European languages can also be affected. Because most computers were not connected to any network during the mid- to late-1980s, there were different grapheme encodings for every language with diacritical characters (see ISO/IEC 8859 and KOI-8), frequently also varying by operating organization.

Hungarian [edit]

Hungarian is another affected language, which uses the 26 basic English characters, plus the accented forms á, é, í, ó, ú, ö, ü (all nowadays in the Latin-i character set up), plus the 2 characters ő and ű, which are not in Latin-one. These ii characters can be correctly encoded in Latin-two, Windows-1250 and Unicode. Before Unicode became mutual in e-mail clients, due east-mails containing Hungarian text ofttimes had the letters ő and ű corrupted, sometimes to the signal of unrecognizability. It is mutual to reply to an e-mail rendered unreadable (run into examples beneath) by grapheme mangling (referred to as "betűszemét", meaning "letter of the alphabet garbage") with the phrase "Árvíztűrő tükörfúrógép", a nonsense phrase (literally "Flood-resistant mirror-drilling auto") containing all accented characters used in Hungarian.

Examples [edit]

Source encoding	Target encoding	Result	Occurrence
Hungarian example		ÁRVÍZTŰRŐ TÜKÖRFÚRÓGÉP árvíztűrő tükörfúrógép	Characters in ruby are incorrect and do not match the top-left example.
CP 852	CP 437	╡RV╓ZTδRè TÜKÖRFΘRαGÉP árvízt√rï tükörfúrógép	This was very common in DOS-era when the text was encoded by the Central European CP 852 encoding; however, the operating system, a software or printer used the default CP 437 encoding. Delight annotation that small-case letters are mainly correct, exception with ő (ï) and ű (√). Ü/ü is correct because CP 852 was made compatible with High german. Nowadays occurs mainly on printed prescriptions and cheques.
CWI-2	CP 437	ÅRVìZTÿRº TÜKÖRFùRòGÉP árvíztûrô tükörfúrógép	The CWI-ii encoding was designed so that the text remains fairly well-readable even if the display or printer uses the default CP 437 encoding. This encoding was heavily used in the 1980s and early 1990s, only nowadays it is completely deprecated.
Windows-1250	Windows-1252	ÁRVÍZTÛRÕ TÜKÖRFÚRÓGÉP árvíztûrõ tükörfúrógép	The default Western Windows encoding is used instead of the Central-European one. Just ő-Ő (õ-Õ) and ű-Ű (û-Û) are wrong, but the text is completely readable. This is the most common fault present; due to ignorance, it occurs ofttimes on webpages or even in printed media.
CP 852	Windows-1250	µRVÖZTëRŠ TšGrand™RFéRŕThousand P rvˇztűr‹ t grand"rfŁr˘g‚p	Central European Windows encoding is used instead of DOS encoding. The use of ű is correct.
Windows-1250	CP 852	┴RV═ZT█RŇ T▄KÍRF┌RËG╔P ßrvÝztűr§ tŘk÷rf˙rˇgÚp	Cardinal European DOS encoding is used instead of Windows encoding. The apply of ű is correct.
Quoted-printable	vii-bit ASCII	=C1RV=CDZT=DBR=D5 T=DCYard=D6RF=DAR=D3Thousand=C9P =E1rv=EDzt=FBr=F5 t=FCk=F6rf=FAr=F3m=E9p	Mainly caused by wrongly configured mail servers but may occur in SMS messages on some prison cell-phones also.
UTF-eight	Windows-1252	ÁRVÍZTÅ°RŐ TÃœOne thousandÖRFÚRÃ"GÉP árvÃztűrÅ' tükörfúrógép	Mainly caused by wrongly configured web services or webmail clients, which were not tested for international usage (as the trouble remains concealed for English texts). In this case the actual (ofttimes generated) content is in UTF-eight; even so, it is non configured in the HTML headers, so the rendering engine displays information technology with the default Western encoding.

Smoothen [edit]

Prior to the creation of ISO 8859-2 in 1987, users of various computing platforms used their ain grapheme encodings such every bit AmigaPL on Amiga, Atari Club on Atari ST and Masovia, IBM CP852, Mazovia and Windows CP1250 on IBM PCs. Polish companies selling early on DOS computers created their own mutually-incompatible ways to encode Polish characters and but reprogrammed the EPROMs of the video cards (typically CGA, EGA, or Hercules) to provide hardware code pages with the needed glyphs for Shine—arbitrarily located without reference to where other computer sellers had placed them.

The situation began to improve when, later on pressure from bookish and user groups, ISO 8859-2 succeeded as the "Internet standard" with express back up of the dominant vendors' software (today largely replaced by Unicode). With the numerous problems acquired by the variety of encodings, even today some users tend to refer to Shine diacritical characters as krzaczki ([kshach-kih], lit. "fiddling shrubs").

Russian and other Cyrillic alphabets [edit]

Mojibake may be colloquially called krakozyabry ( кракозя́бры [krɐkɐˈzʲæbrɪ̈]) in Russian, which was and remains complicated by several systems for encoding Cyrillic.^[6] The Soviet Union and early Russia developed KOI encodings ( Kod Obmena Informatsiey , Код Обмена Информацией , which translates to "Code for Data Exchange"). This began with Cyrillic-only seven-bit KOI7, based on ASCII but with Latin and some other characters replaced with Cyrillic letters. Then came 8-bit KOI8 encoding that is an ASCII extension which encodes Cyrillic letters just with high-bit set octets corresponding to 7-bit codes from KOI7. It is for this reason that KOI8 text, even Russian, remains partially readable subsequently stripping the eighth bit, which was considered every bit a major advantage in the historic period of 8BITMIME-unaware email systems. For example, words " Школа русского языка " shkola russkogo yazyka , encoded in KOI8 so passed through the loftier bit stripping process, cease up rendered equally "[KOLA RUSSKOGO qZYKA". Somewhen KOI8 gained unlike flavors for Russian and Bulgarian (KOI8-R), Ukrainian (KOI8-U), Belarusian (KOI8-RU) and even Tajik (KOI8-T).

Meanwhile, in the Due west, Code page 866 supported Ukrainian and Belarusian likewise as Russian/Bulgarian in MS-DOS. For Microsoft Windows, Code Page 1251 added support for Serbian and other Slavic variants of Cyrillic.

Most recently, the Unicode encoding includes code points for practically all the characters of all the globe's languages, including all Cyrillic characters.

Before Unicode, it was necessary to match text encoding with a font using the same encoding arrangement. Failure to do this produced unreadable gibberish whose specific appearance varied depending on the exact combination of text encoding and font encoding. For example, attempting to view non-Unicode Cyrillic text using a font that is limited to the Latin alphabet, or using the default ("Western") encoding, typically results in text that consists almost entirely of vowels with diacritical marks. (KOI8 " Библиотека " ( biblioteka , library) becomes "âÉÂÌÉÏÔÅËÁ".) Using Windows codepage 1251 to view text in KOI8 or vice versa results in garbled text that consists more often than not of capital letter letters (KOI8 and codepage 1251 share the same ASCII region, just KOI8 has capital letters in the region where codepage 1251 has lowercase, and vice versa). In general, Cyrillic gibberish is symptomatic of using the incorrect Cyrillic font. During the early on years of the Russian sector of the World Wide Web, both KOI8 and codepage 1251 were common. Equally of 2017, one tin still see HTML pages in codepage 1251 and, rarely, KOI8 encodings, besides as Unicode. (An estimated one.vii% of all web pages worldwide – all languages included – are encoded in codepage 1251.^[7]) Though the HTML standard includes the ability to specify the encoding for any given web page in its source,^[8] this is sometimes neglected, forcing the user to switch encodings in the browser manually.

In Bulgarian, mojibake is frequently chosen majmunica ( маймуница ), meaning "monkey's [alphabet]". In Serbian, it is called đubre ( ђубре ), meaning "trash". Unlike the onetime USSR, South Slavs never used something similar KOI8, and Code Folio 1251 was the dominant Cyrillic encoding at that place earlier Unicode. Therefore, these languages experienced fewer encoding incompatibility troubles than Russian. In the 1980s, Bulgarian computers used their ain MIK encoding, which is superficially similar to (although incompatible with) CP866.

Example

Russian example:		Кракозябры ( krakozyabry , garbage characters)
File encoding	Setting in browser	Upshot
MS-DOS 855	ISO 8859-1	Æá ÆÖóÞ¢áñ
KOI8-R	ISO 8859-1	ëÒÁËÏÚÑÂÒÙ
UTF-8	KOI8-R	п я─п╟п╨п╬п╥я▐п╠я─я▀

Yugoslav languages [edit]

Croatian, Bosnian, Serbian (the dialects of the Yugoslav Serbo-Croatian language) and Slovenian add to the bones Latin alphabet the messages š, đ, č, ć, ž, and their capital counterparts Š, Đ, Č, Ć, Ž (simply č/Č, š/Š and ž/Ž in Slovenian; officially, although others are used when needed, mostly in strange names, also). All of these letters are defined in Latin-two and Windows-1250, while merely some (š, Š, ž, Ž, Đ) exist in the usual Os-default Windows-1252, and are there because of some other languages.

Although Mojibake tin occur with any of these characters, the letters that are non included in Windows-1252 are much more prone to errors. Thus, fifty-fifty nowadays, "šđčćž ŠĐČĆŽ" is often displayed as "šðèæž ŠÐÈÆŽ", although ð, è, æ, È, Æ are never used in Slavic languages.

When bars to bones ASCII (nearly user names, for case), common replacements are: š→s, đ→dj, č→c, ć→c, ž→z (majuscule forms analogously, with Đ→Dj or Đ→DJ depending on word case). All of these replacements introduce ambiguities, so reconstructing the original from such a form is usually done manually if required.

The Windows-1252 encoding is of import because the English language versions of the Windows operating system are near widespread, not localized ones.^{[ commendation needed ]} The reasons for this include a relatively small and fragmented market place, increasing the cost of loftier quality localization, a high caste of software piracy (in plough caused past high price of software compared to income), which discourages localization efforts, and people preferring English versions of Windows and other software.^{[ commendation needed ]}

The drive to differentiate Croation from Serbian, Bosnian from Croatian and Serbian, and now even Montenegrin from the other iii creates many issues. There are many different localizations, using different standards and of dissimilar quality. There are no common translations for the vast amount of computer terminology originating in English. In the finish, people use adopted English language words ("kompjuter" for "computer", "kompajlirati" for "compile," etc.), and if they are unaccustomed to the translated terms may not sympathise what some option in a bill of fare is supposed to exercise based on the translated phrase. Therefore, people who understand English, as well as those who are accustomed to English terminology (who are most, because English terminology is also mostly taught in schools considering of these problems) regularly choose the original English versions of non-specialist software.

When Cyrillic script is used (for Macedonian and partially Serbian), the trouble is similar to other Cyrillic-based scripts.

Newer versions of English Windows allow the lawmaking page to be changed (older versions require special English versions with this support), but this setting tin be and often was incorrectly fix. For example, Windows 98 and Windows Me can be prepare to well-nigh not-right-to-left single-byte code pages including 1250, only only at install time.

Caucasian languages [edit]

The writing systems of certain languages of the Caucasus region, including the scripts of Georgian and Armenian, may produce mojibake. This problem is particularly astute in the example of ArmSCII or ARMSCII, a set up of obsolete grapheme encodings for the Armenian alphabet which have been superseded by Unicode standards. ArmSCII is not widely used because of a lack of support in the computer industry. For example, Microsoft Windows does not back up it.

Asian encodings [edit]

Another type of mojibake occurs when text is erroneously parsed in a multi-byte encoding, such equally 1 of the encodings for E Asian languages. With this kind of mojibake more than one (typically two) characters are corrupted at one time, e.g. "k舐lek" ( kärlek ) in Swedish, where " är " is parsed as "舐". Compared to the above mojibake, this is harder to read, since letters unrelated to the problematic å, ä or ö are missing, and is especially problematic for brusque words starting with å, ä or ö such as "än" (which becomes "舅"). Since two letters are combined, the mojibake also seems more random (over l variants compared to the normal 3, not counting the rarer capitals). In some rare cases, an entire text string which happens to include a pattern of particular discussion lengths, such as the sentence "Bush-league hid the facts", may be misinterpreted.

Vietnamese [edit]

In Vietnamese, the phenomenon is chosen chữ ma , loạn mã tin occur when computer try to encode diacritic character defined in Windows-1258, TCVN3 or VNI to UTF-8. Chữ ma was common in Vietnam when user was using Windows XP computer or using cheap mobile phone.

Instance:		Trăm năm trong cõi người ta (Truyện Kiều, Nguyễn Du)
Original encoding	Target encoding	Result
Windows-1258	UTF-8	Trăm năgrand trong cõi người ta
TCVN3	UTF-8	Tr¨m n¨m trong câi ng­êi ta
VNI (Windows)	UTF-eight	Traêm naêm trong coõi ngöôøi ta

Japanese [edit]

In Japanese, the same phenomenon is, as mentioned, called mojibake ( 文字化け ). It is a item problem in Japan due to the numerous unlike encodings that exist for Japanese text. Alongside Unicode encodings like UTF-8 and UTF-16, in that location are other standard encodings, such as Shift-JIS (Windows machines) and EUC-JP (UNIX systems). Mojibake, equally well as existence encountered past Japanese users, is also oftentimes encountered past non-Japanese when attempting to run software written for the Japanese market.

Chinese [edit]

In Chinese, the same phenomenon is called Luàn mǎ (Pinyin, Simplified Chinese 乱码 , Traditional Chinese 亂碼 , meaning 'chaotic lawmaking'), and tin can occur when computerised text is encoded in one Chinese graphic symbol encoding merely is displayed using the wrong encoding. When this occurs, it is often possible to set the issue past switching the graphic symbol encoding without loss of data. The state of affairs is complicated because of the being of several Chinese graphic symbol encoding systems in use, the nigh common ones beingness: Unicode, Big5, and Guobiao (with several backward compatible versions), and the possibility of Chinese characters being encoded using Japanese encoding.

It is easy to identify the original encoding when luanma occurs in Guobiao encodings:

Original encoding	Viewed as	Upshot	Original text	Note
Big5	GB	?T瓣в变巨肚	三國志曹操傳	Garbled Chinese characters with no hint of original significant. The ruby graphic symbol is not a valid codepoint in GB2312.
Shift-JIS	GB	暥帤壔偗僥僗僩	文字化けテスト	Kana is displayed as characters with the radical 亻, while kanji are other characters. Most of them are extremely uncommon and not in practical use in mod Chinese.
EUC-KR	GB	叼力捞钙胶 抛农聪墨	디제이맥스 테크니카	Random common Simplified Chinese characters which in most cases make no sense. Hands identifiable because of spaces between every several characters.

An additional trouble is acquired when encodings are missing characters, which is common with rare or antiquated characters that are still used in personal or place names. Examples of this are Taiwanese politicians Wang Chien-shien (Chinese: 王建煊; pinyin: Wáng Jiànxuān )'s "煊", Yu Shyi-kun (simplified Chinese: 游锡堃; traditional Chinese: 游錫堃; pinyin: Yóu Xíkūn )'southward "堃" and vocaliser David Tao (Chinese: 陶喆; pinyin: Táo Zhé )'s "喆" missing in Big5, ex-PRC Premier Zhu Rongji (Chinese: 朱镕基; pinyin: Zhū Róngjī )'due south "镕" missing in GB2312, copyright symbol "©" missing in GBK.^[9]

Newspapers take dealt with this problem in various ways, including using software to combine two existing, like characters; using a moving picture of the personality; or simply substituting a homophone for the rare character in the hope that the reader would be able to make the correct inference.

Indic text [edit]

A similar upshot can occur in Brahmic or Indic scripts of South Asia, used in such Indo-Aryan or Indic languages every bit Hindustani (Hindi-Urdu), Bengali, Punjabi, Marathi, and others, fifty-fifty if the character set employed is properly recognized by the application. This is because, in many Indic scripts, the rules by which individual letter symbols combine to create symbols for syllables may not be properly understood by a calculator missing the appropriate software, even if the glyphs for the individual letter of the alphabet forms are available.

One instance of this is the old Wikipedia logo, which attempts to show the character coordinating to "wi" (the first syllable of "Wikipedia") on each of many puzzle pieces. The puzzle piece meant to bear the Devanagari character for "wi" instead used to display the "wa" grapheme followed by an unpaired "i" modifier vowel, easily recognizable as mojibake generated by a calculator not configured to display Indic text.^[10] The logo as redesigned as of May 2010^[ref] has stock-still these errors.

The thought of Patently Text requires the operating system to provide a font to display Unicode codes. This font is different from OS to Bone for Singhala and it makes orthographically incorrect glyphs for some messages (syllables) beyond all operating systems. For instance, the 'reph', the brusque form for 'r' is a diacritic that commonly goes on top of a plain letter of the alphabet. However, it is incorrect to go along top of some letters like 'ya' or 'la' in specific contexts. For Sanskritic words or names inherited past modernistic languages, such as कार्य, IAST: kārya, or आर्या, IAST: āryā, it is apt to put information technology on top of these letters. Past contrast, for similar sounds in modern languages which result from their specific rules, it is not put on top, such as the word करणाऱ्या, IAST: karaṇāryā, a stalk course of the common word करणारा/री, IAST: karaṇārā/rī, in the Marä thi language.^[11] Just information technology happens in most operating systems. This appears to be a fault of internal programming of the fonts. In Mac OS and iOS, the muurdhaja l (dark l) and 'u' combination and its long form both yield wrong shapes.^{[ citation needed ]}

Some Indic and Indic-derived scripts, most notably Lao, were non officially supported past Windows XP until the release of Vista.^[12] However, various sites accept fabricated free-to-download fonts.

Burmese [edit]

Due to Western sanctions^[13] and the late arrival of Burmese linguistic communication support in computers,^{[14] [fifteen]} much of the early Burmese localization was homegrown without international cooperation. The prevailing means of Burmese support is via the Zawgyi font, a font that was created every bit a Unicode font just was in fact only partially Unicode compliant.^[15] In the Zawgyi font, some codepoints for Burmese script were implemented every bit specified in Unicode, but others were not.^[16] The Unicode Consortium refers to this as ad hoc font encodings.^[17] With the advent of mobile phones, mobile vendors such as Samsung and Huawei simply replaced the Unicode compliant system fonts with Zawgyi versions.^[xiv]

Due to these ad hoc encodings, communications between users of Zawgyi and Unicode would render as garbled text. To become around this issue, content producers would brand posts in both Zawgyi and Unicode.^[18] Myanmar regime has designated ane October 2019 as "U-Day" to officially switch to Unicode.^[13] The full transition is estimated to take two years.^[nineteen]

African languages [edit]

In certain writing systems of Africa, unencoded text is unreadable. Texts that may produce mojibake include those from the Horn of Africa such as the Ge'ez script in Ethiopia and Eritrea, used for Amharic, Tigre, and other languages, and the Somali language, which employs the Osmanya alphabet. In Southern Africa, the Mwangwego alphabet is used to write languages of Malawi and the Mandombe alphabet was created for the Congo-kinshasa, but these are not generally supported. Diverse other writing systems native to Westward Africa present similar problems, such as the North'Ko alphabet, used for Manding languages in Guinea, and the Vai syllabary, used in Liberia.

Arabic [edit]

Another afflicted language is Standard arabic (meet beneath). The text becomes unreadable when the encodings exercise non match.

Examples [edit]

File encoding	Setting in browser	Event
Arabic case:		(Universal Proclamation of Human Rights)
Browser rendering:		الإعلان العالمى لحقوق الإنسان
UTF-8	Windows-1252	الإعلان العالمى لحقوق الإنسان
	KOI8-R	О╩©ь╖ы└ь╔ь╧ы└ь╖ы├ ь╖ы└ь╧ь╖ы└ы┘ы┴ ы└ь╜ы┌ы┬ы┌ ь╖ы└ь╔ы├ьЁь╖ы├
	ISO 8859-5	яЛПиЇй�иЅиЙй�иЇй� иЇй�иЙиЇй�й�й� й�ий�й�й� иЇй�иЅй�иГиЇй�
	CP 866	я╗┐╪з┘Д╪е╪╣┘Д╪з┘Ж ╪з┘Д╪╣╪з┘Д┘Е┘Й ┘Д╪н┘В┘И┘В ╪з┘Д╪е┘Ж╪│╪з┘Ж
	ISO 8859-half-dozen	ُ؛؟ظ�ع�ظ�ظ�ع�ظ�ع� ظ�ع�ظ�ظ�ع�ع�ع� ع�ظع�ع�ع� ظ�ع�ظ�ع�ظ�ظ�ع�
	ISO 8859-2	اŮ�ŘĽŘšŮ�اŮ� اŮ�ؚاŮ�Ů�Ů� Ů�ŘŮ�Ů�Ů� اŮ�ŘĽŮ�ساŮ�
Windows-1256	Windows-1252	ÇáÅÚáÇä ÇáÚÇáãì áÍÞæÞ ÇáÅäÓÇä

The examples in this article practise not have UTF-8 equally browser setting, because UTF-viii is hands recognisable, so if a browser supports UTF-8 it should recognise it automatically, and not try to interpret something else as UTF-eight.

Come across likewise [edit]

• Lawmaking betoken
• Replacement graphic symbol
• Substitute graphic symbol
• Newline – The conventions for representing the line break differ between Windows and Unix systems. Though most software supports both conventions (which is trivial), software that must preserve or display the difference (eastward.g. version control systems and information comparison tools) tin can get substantially more difficult to utilise if not adhering to one convention.
• Byte lodge mark – The nigh in-band way to shop the encoding together with the information – prepend it. This is past intention invisible to humans using compliant software, but will by design be perceived as "garbage characters" to incompliant software (including many interpreters).
• HTML entities – An encoding of special characters in HTML, mostly optional, simply required for certain characters to escape estimation as markup.

  While failure to apply this transformation is a vulnerability (meet cross-site scripting), applying it too many times results in garbling of these characters. For example, the quotation mark " becomes ", ", " so on.

• Bush hid the facts

References [edit]

1. ^ ^{a b} King, Ritchie (2012). "Will unicode presently be the universal code? [The Information]". IEEE Spectrum. 49 (7): 60. doi:10.1109/MSPEC.2012.6221090.
2. ^ WINDISCHMANN, Stephan (31 March 2004). "curl -v linux.ars (Internationalization)". Ars Technica . Retrieved 5 October 2018.
3. ^ "Guidelines for extended attributes". 2013-05-17. Retrieved 2015-02-15 .
4. ^ "Unicode mailinglist on the Eudora e-mail client". 2001-05-thirteen. Retrieved 2014-11-01 .
5. ^ "sms-scam". June xviii, 2014. Retrieved June 19, 2014.
6. ^ p. 141, Command + Alt + Delete: A Dictionary of Cyberslang, Jonathon Keats, Globe Pequot, 2007, ISBN ane-59921-039-8.
7. ^ "Usage of Windows-1251 for websites".
8. ^ "Declaring character encodings in HTML".
9. ^ "Red china GBK (XGB)". Microsoft. Archived from the original on 2002-10-01. Conversion map between Code page 936 and Unicode. Need manually selecting GB18030 or GBK in browser to view it correctly.
10. ^ Cohen, Noam (June 25, 2007). "Some Errors Defy Fixes: A Typo in Wikipedia's Logo Fractures the Sanskrit". The New York Times . Retrieved July 17, 2009.
11. ^ https://marathi.indiatyping.com/
12. ^ "Content Moved (Windows)". Msdn.microsoft.com. Retrieved 2014-02-05 .
13. ^ ^{a b} "Unicode in, Zawgyi out: Modernity finally catches up in Myanmar's digital world". The Japan Times. 27 September 2019. Retrieved 24 December 2019. Oct. 1 is "U-Solar day", when Myanmar officially volition adopt the new system.... Microsoft and Apple tree helped other countries standardize years ago, but Western sanctions meant Myanmar lost out.
14. ^ ^{a b} Hotchkiss, Griffin (March 23, 2016). "Battle of the fonts". Frontier Myanmar . Retrieved 24 December 2019. With the release of Windows XP service pack 2, complex scripts were supported, which made it possible for Windows to render a Unicode-compliant Burmese font such as Myanmar1 (released in 2005). ... Myazedi, BIT, and later Zawgyi, confining the rendering problem by adding extra code points that were reserved for Myanmar's ethnic languages. Not only does the re-mapping preclude futurity ethnic language back up, it also results in a typing organisation that can be confusing and inefficient, fifty-fifty for experienced users. ... Huawei and Samsung, the 2 virtually popular smartphone brands in Myanmar, are motivated but by capturing the largest market share, which means they support Zawgyi out of the box.
15. ^ ^{a b} Sin, Thant (7 September 2019). "Unified under one font system equally Myanmar prepares to migrate from Zawgyi to Unicode". Rise Voices . Retrieved 24 December 2019. Standard Myanmar Unicode fonts were never mainstreamed unlike the private and partially Unicode compliant Zawgyi font. ... Unicode will amend natural language processing
16. ^ "Why Unicode is Needed". Google Code: Zawgyi Projection . Retrieved 31 October 2013.
17. ^ "Myanmar Scripts and Languages". Ofttimes Asked Questions. Unicode Consortium. Retrieved 24 Dec 2019. "UTF-8" technically does non apply to ad hoc font encodings such equally Zawgyi.
18. ^ LaGrow, Nick; Pruzan, Miri (September 26, 2019). "Integrating autoconversion: Facebook'southward path from Zawgyi to Unicode - Facebook Engineering". Facebook Engineering. Facebook. Retrieved 25 December 2019. Information technology makes communication on digital platforms difficult, every bit content written in Unicode appears garbled to Zawgyi users and vice versa. ... In gild to better reach their audiences, content producers in Myanmar often mail service in both Zawgyi and Unicode in a unmarried mail service, not to mention English language or other languages.
19. ^ Saw Yi Nanda (21 November 2019). "Myanmar switch to Unicode to take 2 years: app developer". The Myanmar Times . Retrieved 24 December 2019.

External links [edit]

gordonberaing1955.blogspot.com

Source: https://en.wikipedia.org/wiki/Mojibake

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