4 months, 1 week ago

It is quite simple to sort out the origin and development of "Jikou Dang". Let me introduce you a little bit. 

Division and simplification

"Dang" has always been used as an example of onomatopoeia

 [Song Dynasty] Chen Shidao's "quatrains in the Yellow chamber" says: "the sound of upstairs should be all night long. What is the matter with people. "Ren yuan notes:" Dangdang, the sound of falling stele. 」

As an onomatopoeia, "Dang" was later added with "mouth" to differentiate into "Dang". It was used to describe the impact sound of jade, stone, metal and other objects. For example:

 the 70th chapter of journey to the West: "the traveler hears that the golden cup will be empty even if the wine is drunk. When it is loud, the golden cup will fall to the ground. "
 [Qing Dynasty] Hong Sheng's the palace of eternal life: Reunion:" Xianpei and Xianpei tend to stagger each other, taking advantage of the wind in the sky, only to hear the distant jingle. 」

At the same time, there have been examples of "Dang" in the folk character texts. For example, the popular novels of Beijing (yuan), Mu Lian Ji, Jin Ping Mei and Lingnan Yishi (Qing Dynasty) cited in the folk character spectrum since the song and Yuan Dynasties, when all the "Dang" were written as "Dang". 

Therefore, in the subsequent simplification schemes, "Dang" is simplified as "Dang", and "Dang" is also simplified as "Dang". After that, the two merged, and the meaning of onomatopoeia returned to "Dang". 


 
, the first list of simplified Chinese characters, 22 August 1935. 



 
 "draft simplified table of 798 Chinese characters", January 1955. 



 
, Chinese character simplification scheme, February 1956. 



 
 simplified word list, May 1964. 2. Lead printing and Phototypesetting

The first computer craze in China was thought to have appeared in 1984, so I took out a book from the 1960s and 1970s and asked, "how did they type it? "Questions always sound funny. 

When the printing of written texts was in the lead typesetting era, the style of each character was determined by the copper mold. Continuous casting of copper mold can be used to mass produce type, and then typesetting and printing can be used to obtain written text. If there is a word that is not in the font and there is no corresponding copper mold to cast, it is necessary to carve the type by hand. Therefore, the characters printed in early publications were carved. 


 
 unknown. Shanhua, 1958 (03): 6. For example, "Nuwa supplementary character software" includes dot matrix editing mode and vector editing mode. After spelling, the private character set code point is input to save the converted dot matrix information. 

By the way, 
 @ Suqian 
 the screenshot in this article is from Xinhua Dictionary of the commercial press. 


 
 Xinhua Dictionary (4th Edition), commercial press, 2013-08 
 
 
 
 3. Coding and pseudo coding

Since "Dang" and "Dang" are merged into "Dang" in the simplified word list, only "Dang" will be included in the frequency statistics of the 748 project. In addition, the simplified word list will make the word "Dang" not appear in GB / T 2312-1980. Because it is a simplified word, other countries and regions will not submit this word, so it will not be included in uro. 

The word "" is included in Unicode, or ISO / IEC 10646, or GB / T 13000, in the extension C block. At that time, there was a requirement of "speaking evidence" for each submitted Chinese character. The Chinese side examined all the Chinese characters submitted with the big head of the characters, and screened out the Chinese characters with evidence to submit them, including the character "Yikou Dang". 


 @ badvortex 
 mistakenly thought that" GBK "in" gbk-2001.87 "was the" internal code expansion scheme of Chinese characters ", but it was not. Patiently check < a class = "wrap external" HTML=“ http://link.zhihu.com/?target=https%3A//www.unicode.org/reports/tr38/ " target="_ It can be found that "g" comes from the "national standard", which refers to the demand of China (including Singapore, not to mention), while "BK" actually means the Encyclopedia of China. The specific submission, as noted in the citation, is from IRG n1227. 


 why is" koudang "(U + 2a83d) included in Unicode? 


Next, we need to explain the infamous "Tencent Sogou self made font". 

In short, QQ Pinyin input method and Sogou input method may need to be compatible with Windows XP system. The system has poor support for characters other than BMP, and the system does not have built-in font files for displaying SIP Chinese characters. Therefore, these two input methods may not choose to map characters to a legitimate SIP plane. This may be the reason why the two input methods focus on the illegal private use area. 

In the ancient times of Windows operating system, there was an application called "eudc edit". The word "eudc" means "end user defined character". It is actually a software that creates dot matrix patterns on private areas. 

As a result, QQ Pinyin input method created 413 characters, Sogou input method then created two characters in the back, and established the input method. Today, installing the latest version of these two input methods will still install a font that they made by default (which is quite ugly, of course). It's OK to interpret this behavior as backward compatibility, but they don't map it to compliant code points, so they don't intend to move forward. 


 why does Sogou use non-standard codes for its own characters? Where can I find out the characters created? 



 4. Reality

The so-called "private area" is a block caused by the fact that font technology has not yet been developed in the early days of UCS, and each character shape needs to correspond to the code point of the upper character set. Users define the characters and their shapes they need, and use them in their own closed system. This is also the reason why you can't search by using QQ Pinyin input method and Sogou input method, because they are "for private use". 

As for the standard code point, it is also why the U + 2a83d mentioned by many respondents can not be shown in Zhihu's answer. What it involves is a demand that has been noticed at least four years ago but has not been promoted. 


 why does Zhihu not support non BMP Chinese characters? 


Of course, even comment areas and columns that support non BMP characters are no different from those that don't because of their repeated "upgrades.". 


 do you know that Unicode non BMP characters are allowed? 


To sum up, under the surface Mandela effect, this problem is caused by the inertia of simplifying the draft, the subconsciousness of onomatopoeia, the backward input method not following up the new standard, and the backward website not promoting the potential demand. 

Therefore, 
 @ early 
, 
 @ care 
 is obviously wrong, because they have never appeared in compliance in the public view. 

Above.

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