metacharactern.

Brit.

/ˈmɛtəˌkarᵻktə/, U.S.

/ˈmɛdəˌkɛr(ə)ktər/

Origin: Formed within English, by derivation. Etymons: meta- prefix, character n.

Etymology: < meta- prefix + character n.

1. Philosophy. The character of a concept, etc., in a metalanguage; metalinguistic character. rare.

ΚΠ

1964 Mind 73 319 Though a meaningless expression cannot be used meaningfully, it can be mentioned meaningfully. Of course, in proceeding this way, we should be introducing meta-linguistic concepts into the logic and so changing its character. But..we could disguise this in much the same way as the meta-character of the modal concepts is disguised by introducing an operator ‘S’, say, which we might read as, ‘it is sense to say that..’.

2. Computing. A character that is defined as having a controlling role by the computer program or operating system in use, and that gives information about how other characters are to be determined or gives rise to a specific action.

ΚΠ

1982 Byte Apr. 298/2 Searching for a metacharacter itself requires using an ‘escape sequence’..a concept beginners find hard to grasp.

1990 UNIX World Oct. 155/1 With the eight-bit-clean shells, you can use metacharacters to identify file names containing these eight-bit characters... You can always use the shell's question mark (?) metacharacter, which matches any single character.

1996 Web Techniques Aug. 47/2 Shell metacharacters, such as |, *, and & characters.

This is a new entry (OED Third Edition, December 2001; most recently modified version published online March 2022).

单词	metacharacter
释义	metacharactern. Brit. /ˈmɛtəˌkarᵻktə/, U.S. /ˈmɛdəˌkɛr(ə)ktər/ Origin: Formed within English, by derivation. Etymons: meta- prefix, character n. Etymology: < meta- prefix + character n. 1. Philosophy. The character of a concept, etc., in a metalanguage; metalinguistic character. rare. ΚΠ 1964 Mind 73 319 Though a meaningless expression cannot be used meaningfully, it can be mentioned meaningfully. Of course, in proceeding this way, we should be introducing meta-linguistic concepts into the logic and so changing its character. But..we could disguise this in much the same way as the meta-character of the modal concepts is disguised by introducing an operator ‘S’, say, which we might read as, ‘it is sense to say that..’. 2. Computing. A character that is defined as having a controlling role by the computer program or operating system in use, and that gives information about how other characters are to be determined or gives rise to a specific action. ΚΠ 1982 Byte Apr. 298/2 Searching for a metacharacter itself requires using an ‘escape sequence’..a concept beginners find hard to grasp. 1990 UNIX World Oct. 155/1 With the eight-bit-clean shells, you can use metacharacters to identify file names containing these eight-bit characters... You can always use the shell's question mark (?) metacharacter, which matches any single character. 1996 Web Techniques Aug. 47/2 Shell metacharacters, such as \|, *, and & characters. This is a new entry (OED Third Edition, December 2001; most recently modified version published online March 2022). < n.1964
随便看	spectinomycins spectra spectral spectral analysis spectral index spectral palette spectral series spectral term spectral type spectraler spectralest spectralism spectralities spectrality spectraller spectrallest spectrally spectralness spectralnesses spectre spectre at the banquet spectre at the feast spectre hound spectre insect spectre knight