2 ms·

Judging by the name and by these opcodes https://github.com/emacs-mirror/emacs/blob/7cb77385d38b96377d404a2ab0e778b2dfce5c77/src/ccl.c#L690-L692 https://github

by lmz 2y ago

Judging by the name and by these opcodes https://github.com/emacs-mirror/emacs/blob/7cb77385d38b96377d404a2ab0e778b2dfce5c77/src/ccl.c#L690-L692 https://github.com/emacs-mirror/emacs/blob/7cb77385d38b96377... it seems to be intended for character set conversion especially JIS.

usr1106 2y ago
More documentation in https://github.com/emacs-mirror/emacs/blob/7cb77385d38b96377d404a2ab0e778b2dfce5c77/lisp/international/ccl.el https://github.com/emacs-mirror/emacs/blob/7cb77385d38b96377... The directory is lisp/international, that already tells something ;; CCL is used for code conversion at process I/O and file I/O for ;; non-standard coding-systems. In addition, it is used for ;; calculating code points of X fonts from character codes. And $ find /usr/share/emacs/26.3/lisp/ \! -name ccl.el.gz -name \*.el.gz -exec zgrep ccl- {} + /usr/share/emacs/26.3/lisp/obsolete/pgg-parse.el.gz:(when (fboundp 'define-ccl-program) /usr/share/emacs/26.3/lisp/obsolete/pgg-parse.el.gz: (define-ccl-program pgg-parse-crc24 /usr/share/emacs/26.3/lisp/obsolete/pgg-parse.el.gz: (ccl-execute-on-string pgg-parse-crc24 h string) /usr/share/emacs/26.3/lisp/international/mule.el.gz:specified by the attributes `:ccl-decoder' and `:ccl-encoder'. /usr/share/emacs/26.3/lisp/international/mule.el.gz:`:ccl-decoder' (required if :coding-type is `ccl') /usr/share/emacs/26.3/lisp/international/mule.el.gz:VALUE is a CCL program name defined by `define-ccl-program'. The /usr/share/emacs/26.3/lisp/international/mule.el.gz:`:ccl-encoder' (required if :coding-type is `ccl') /usr/share/emacs/26.3/lisp/international/mule.el.gz:VALUE is a CCL program name defined by `define-ccl-program'. The /usr/share/emacs/26.3/lisp/international/mule.el.gz: '(:ccl-decoder /usr/share/emacs/26.3/lisp/international/mule.el.gz: :ccl-encoder /usr/share/emacs/26.3/lisp/international/mule.el.gz: (plist-put properties :ccl-decoder (car flags)) /usr/share/emacs/26.3/lisp/international/mule.el.gz: (plist-put properties :ccl-encoder (cdr flags)))) /usr/share/emacs/26.3/lisp/language/vietnamese.el.gz:;; '(ccl-decode-vps . ccl-encode-vps) /usr/share/emacs/26.3/lisp/language/ethiopic.el.gz:(define-ccl-program ccl-encode-ethio-font /usr/share/emacs/26.3/lisp/language/ethiopic.el.gz:(setq font-ccl-encoder-alist /usr/share/emacs/26.3/lisp/language/ethiopic.el.gz: (cons (cons (purecopy "ethiopic") ccl-encode-ethio-font) font-ccl-encoder-alist)) Mule was non-ASCII support in the 1990s before Unicode was a thing.

by lmz 2y ago

usr1106 2y ago

More documentation in https://github.com/emacs-mirror/emacs/blob/7cb77385d38b96377d404a2ab0e778b2dfce5c77/lisp/international/ccl.el https://github.com/emacs-mirror/emacs/blob/7cb77385d38b96377... The directory is lisp/international, that already tells something ;; CCL is used for code conversion at process I/O and file I/O for ;; non-standard coding-systems. In addition, it is used for ;; calculating code points of X fonts from character codes. And $ find /usr/share/emacs/26.3/lisp/ \! -name ccl.el.gz -name \*.el.gz -exec zgrep ccl- {} + /usr/share/emacs/26.3/lisp/obsolete/pgg-parse.el.gz:(when (fboundp 'define-ccl-program) /usr/share/emacs/26.3/lisp/obsolete/pgg-parse.el.gz: (define-ccl-program pgg-parse-crc24 /usr/share/emacs/26.3/lisp/obsolete/pgg-parse.el.gz: (ccl-execute-on-string pgg-parse-crc24 h string) /usr/share/emacs/26.3/lisp/international/mule.el.gz:specified by the attributes `:ccl-decoder' and `:ccl-encoder'. /usr/share/emacs/26.3/lisp/international/mule.el.gz:`:ccl-decoder' (required if :coding-type is `ccl') /usr/share/emacs/26.3/lisp/international/mule.el.gz:VALUE is a CCL program name defined by `define-ccl-program'. The /usr/share/emacs/26.3/lisp/international/mule.el.gz:`:ccl-encoder' (required if :coding-type is `ccl') /usr/share/emacs/26.3/lisp/international/mule.el.gz:VALUE is a CCL program name defined by `define-ccl-program'. The /usr/share/emacs/26.3/lisp/international/mule.el.gz: '(:ccl-decoder /usr/share/emacs/26.3/lisp/international/mule.el.gz: :ccl-encoder /usr/share/emacs/26.3/lisp/international/mule.el.gz: (plist-put properties :ccl-decoder (car flags)) /usr/share/emacs/26.3/lisp/international/mule.el.gz: (plist-put properties :ccl-encoder (cdr flags)))) /usr/share/emacs/26.3/lisp/language/vietnamese.el.gz:;; '(ccl-decode-vps . ccl-encode-vps) /usr/share/emacs/26.3/lisp/language/ethiopic.el.gz:(define-ccl-program ccl-encode-ethio-font /usr/share/emacs/26.3/lisp/language/ethiopic.el.gz:(setq font-ccl-encoder-alist /usr/share/emacs/26.3/lisp/language/ethiopic.el.gz: (cons (cons (purecopy "ethiopic") ccl-encode-ethio-font) font-ccl-encoder-alist)) Mule was non-ASCII support in the 1990s before Unicode was a thing.