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This includes terminal emulators such as xterm, rxvt, GNOME Terminal, and Konsole on systems with X11-based or Wayland-based window systems, and Terminal.app and third-party terminal emulators such as iTerm2 on macOS. Terminal emulators for communicating with local programs as well as remote machines and the text system console almost always support ANSI escape codes. Many programs, including text editors such as vi and GNU Emacs, use termcap or terminfo, or use libraries such as curses that use termcap or terminfo, and thus in theory support non-ANSI terminals, but this is so rarely tested nowadays that they are unlikely to work with those terminals. For instance, many games and shell scripts, and utilities such as color directory listings, directly write the ANSI sequences and thus cannot be used on a terminal that does not interpret them. Platform support Unix-like systems ДЄlthough termcap/ terminfo-style libraries were primarily developed on and for Unix, by the mid-1980s programs running on Unix-like operating systems could almost always assume they were using a terminal or emulator that supported ANSI sequences this led to widespread use of ANSI by programs running on those platforms. Both systems quickly fell into disuse, but ECMA-48 does mark the extensions used in them as reserved. The two systems share many escape codes with the ANSI system, with extensions that are not necessarily meaningful to computer terminals. Related standards include ITU T.61, the Teletex standard, and the ISO/IEC 8613, the Open Document Architecture standard (mainly ISO/IEC 8613-6 or ITU T.416). A version is adopted as a Japanese Industrial Standard, as JIS X 0211.

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It is also adopted by ISO and IEC as standard ISO/IEC 6429. Д®CMA-48 has been updated several times and is currently at its 5th edition, from 1991. Later, the US government stopped duplicating industry standards, so FIPS pub. In 1981, ANSI X3.64 was adopted for use in the US government by FIPS publication 86.

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The popularity of these gradually led to more and more software (especially bulletin board systems and other online services) assuming the escape sequences worked, leading to almost all new terminals and emulator programs supporting them. Others included the Qume QVT-108, Televideo TVI-970, Wyse WY-99GT as well as optional 'VT100' or 'VT103' or 'ANSI' modes with varying degrees of compatibility on many other brands. This model was very successful in the market, which sparked a variety of VT100 clones, among the earliest and most popular of which was the much more affordable Zenith Z-19 in 1979. The first popular video terminal to support these sequences was the Digital VT100, introduced in 1978. In 1994, ANSI withdrew its standard in favor of the international standard. These two standards were merged into an international standard, ISO 6429. The ANSI X3L2 committee collaborated with the ECMA committee TC 1 to produce nearly identical standards. The name 'ANSI escape sequence' dates from 1979 when ANSI adopted ANSI X3.64.

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It was a continuation of a series of character coding standards, the first one being ECMA-6 from 1965, a 7-bit standard from which ISO 646 originates. The first standard in the series was ECMA-48, adopted in 1976.

The ANSI standard attempted to address these problems by making a command set that all terminals would use and requiring all numeric information to be transmitted as ASCII numbers. In addition, many of these terminals required sending numbers (such as row and column) as the binary values of the characters for some programming languages, and for systems that did not use ASCII internally, it was often difficult to turn a number into the correct character. While the two terminals had identical functionality in this regard, different control sequences had to be used to invoke them.ДЄs these sequences were different for different terminals, elaborate libraries such as termcap ('terminal capabilities') and utilities such as tput had to be created so programs could use the same API to work with any terminal. The Hazeltine 1500 had a similar feature, invoked using ~, DC1 and then the X and Y positions separated with a comma.

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One example is the VT52 terminal, which allowed the cursor to be placed at an x,y location on the screen by sending the ESC character, a Y character, and then two characters representing with numerical values equal to the x,y location plus 32 (thus starting at the ASCII space character and avoiding the control characters). 3.5 OSC (Operating System Command) sequencesДЄlmost all manufacturers of video terminals added vendor-specific escape sequences to perform operations such as placing the cursor at arbitrary positions on the screen.3.4 SGR (Select Graphic Rendition) parameters.3.3 CSI (Control Sequence Introducer) sequences.

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