add retroforth.el emacs mode
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retroforth.el
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retroforth.el
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;
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;; retroforth-mode for emacs
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;; version: 0.01
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;; RETRO 12 syntax
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;;
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;; ----------------------------------------------------------
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;; Copyright (c) 2021 Philippe Brochard <hocwp@free.fr>
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;;
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;; Permission to use, copy, modify, and/or distribute this software
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;; for any purpose with or without fee is hereby granted, provided
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;; that the above copyright notice and this permission notice appear
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;; in all copies.
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;;
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;; THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
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;; WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
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;; WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
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;; AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
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;; CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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;; LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
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;; NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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;; CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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;; ----------------------------------------------------------
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;; ( http://en.wikipedia.org/wiki/ISC_license )
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;
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;; usage : add this to your .emacs file:
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;;
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;; (add-to-list 'load-path <path/to/retroforth.el>)
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;; (require 'retroforth)
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;;
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;; files in *.retro will be open in retroforth mode
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;;
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;; interactions:
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;;
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;; C-M-x retroforth-eval-block-region
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;; C-c C-k forth-kill
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;; C-c C-f forth-restart
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;; C-c : forth-eval
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;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;
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;; changelog
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;;
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;; 2021-03-30 v. 0.01 hocwp
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;; retroforth-mode for emacs
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;; limited to basic syntax highlighting
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;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;
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;; implementation
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;;
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;----------------------------------------------------------
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; forth-mode require for basic usage already defined in this mode:
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;
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(require 'forth-mode)
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;----------------------------------------------------------
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; retroforth groups definitions
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;
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(defgroup retroforth nil
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"Major mode for editing and running RETRO Forth."
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:prefix "retrofoth-"
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:link '(url-link "http://www.retroforth.org/"))
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(defgroup retroforth-lock-faces nil
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"Major mode for editing and running RETRO Forth."
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:prefix "retrofoth-"
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:group 'retroforth
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:link '(url-link "http://www.retroforth.org/"))
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;----------------------------------------------------------
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; tables
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; start with empty syntax and abbrev tables
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;
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(defvar retroforth-mode-syntax-table (make-syntax-table) "")
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(defvar retroforth-mode-abbrev-table (make-abbrev-table) "")
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(defvar retroforth-block-regex "~~~\\|```")
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;----------------------------------------------------------
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; face definitions for syntax highlighting
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; ( instead of editing the colors here, use M-x customize-face )
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;
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;;; Markdown faces
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(defface retroforth-markdown-title-face
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'((t (:foreground "blue")))
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"Face for retroforth mode."
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:group 'retroforth-lock-faces)
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(defface retroforth-markdown-italic-face
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'((t (:inherit italic)))
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"Face for italic text."
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:group 'retroforth-lock-faces)
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(defface retroforth-markdown-bold-face
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'((t (:inherit bold)))
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"Face for retroforth mode."
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:group 'retroforth-lock-faces)
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(defface retroforth-markdown-inline-code-face
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'((t (:foreground "dark cyan")))
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"Face for retroforth mode."
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:group 'retroforth-lock-faces)
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;;; Code faces
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(defface retroforth-block-highlight
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'((t (:background "seashell" :extend t)))
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"Face for retroforth mode."
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:group 'retroforth-lock-faces)
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(defface retroforth-define-face
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'((t (:foreground "red" :inherit retroforth-block-highlight)))
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"Face for retroforth mode."
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:group 'retroforth-lock-faces)
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(defface retroforth-compile-face
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'((t (:foreground "green4" :inherit retroforth-block-highlight)))
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"Face for retroforth mode."
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:group 'retroforth-lock-faces)
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(defface retroforth-execute-face
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'((t (:foreground "yellow4" :inherit retroforth-block-highlight)))
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"Face for retroforth mode."
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:group 'retroforth-lock-faces)
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(defface retroforth-number-face
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'((t (:foreground "dark blue" :inherit retroforth-block-highlight)))
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"Face for retroforth mode."
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:group 'retroforth-lock-faces)
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(defface retroforth-string-face
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'((t (:foreground "VioletRed4" :inherit retroforth-block-highlight)))
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"Face for retroforth mode."
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:group 'retroforth-lock-faces)
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(defface retroforth-comment-face
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'((t (:foreground "grey40" :inherit retroforth-block-highlight)))
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"Face for retroforth mode."
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:group 'retroforth-lock-faces)
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(defface retroforth-bracket-face
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'((t (:foreground "darkorange3" :inherit retroforth-block-highlight)))
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"Face for retroforth mode."
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:group 'retroforth-lock-faces)
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(defface retroforth-code-face
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'((t (:foreground "grey40" :inherit retroforth-block-highlight)))
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"Face for retroforth mode."
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:group 'retroforth-lock-faces)
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(defface retroforth-var-face
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'((t (:foreground "dark magenta" :inherit retroforth-block-highlight)))
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"Face for retroforth mode."
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:group 'retroforth-lock-faces)
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(defface retroforth-keyword-face
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'((t (:foreground "dark blue" :inherit retroforth-block-highlight)))
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"Face for retroforth mode."
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:group 'retroforth-lock-faces)
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(defface retroforth-highlight-face
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'((t (:background "azure2" :extend t)))
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"Face for retroforth mode."
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:group 'retroforth-lock-faces)
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(defun defprefixhighlight (prefix face)
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(cons (format "\\(^\\|[ \n\t]\\)%s[^ \n\t]+" prefix) `(0 ',face t)))
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(setq retroforth-highlights
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(let* ((keywords '("bye" "TIB" "abort" "include" "FREE" "dump-stack" "reset"
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"tab" "sp" "nl" "unhook" "set-hook" "hook" "indexed-times"
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"K" "J" "I" "does" "curry" "reorder" "STRINGS" "TempStringMax"
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"TempStrings" "---reveal---" "ScopeList" "copy" "allot" "mod"
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"rot" "-if;" "if;" "gteq?" "lteq?" "not" "case" "FALSE" "TRUE"
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"times" "until" "while" "tri@" "tri*" "tri" "bi@" "bi*" "bi" "sip"
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"dip" "dup-pair" "?dup" "drop-pair" "nip" "over" "tuck" "const"
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"var" "var-n" "here" "compiling?" "primitive" "data" "immediate"
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"reclass" "depth" "EOM" "Version" "interpret" "again" "repeat" "Dictionary"
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"Heap" "Compiler" "-if" "if" "choose" "store-next" "fetch-next" "pop"
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"push" "shift" "xor" "or" "and" "/mod" "store" "fetch"
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"gt?" "lt?" "-eq?" "eq?" "call" "swap" "drop" "dup"))
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(keywords-regexp (regexp-opt keywords 'words)))
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`(("\\(~~~\\|```\\)\\(.\\|\n\\)*?\\(~~~\\|```\\)" . (0 'retroforth-block-highlight t))
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("[]{}\\[]" . (0 'retroforth-bracket-face t))
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("^#.*$" . (0 'retroforth-markdown-title-face t))
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(,keywords-regexp . (0 'retroforth-keyword-face t))
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(" \\*.*\\*" . (0 'retroforth-markdown-bold-face t))
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(" _.*_" . (0 'retroforth-markdown-italic-face t))
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(" `.*`" . (0 'retroforth-markdown-inline-code-face t))
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,(defprefixhighlight "\\w+:" 'retroforth-compile-face)
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,(defprefixhighlight "#[0-9]+" 'retroforth-number-face)
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,(defprefixhighlight "\\." 'retroforth-number-face)
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("\\$." (0 'retroforth-number-face t))
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,(defprefixhighlight "'" 'retroforth-string-face)
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,(defprefixhighlight ":" 'retroforth-define-face)
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(" ;" . (0 'retroforth-define-face t))
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,(defprefixhighlight "(" 'retroforth-comment-face)
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,(defprefixhighlight "&" 'retroforth-var-face)
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,(defprefixhighlight "@" 'retroforth-var-face)
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,(defprefixhighlight "!" 'retroforth-var-face))))
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;----------------------------------------------------------
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; forth mode interactions
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;
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(defun retroforth-interaction-send (&rest strings)
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(forth-scrub (or (apply #'forth-interaction-send-raw-result strings)
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"OK: No output")))
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(defun retroforth-eval (string)
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(interactive "sForth expression: ")
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(message "%s" (retroforth-interaction-send string)))
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(defun retroforth-eval-region (start end)
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(interactive "r")
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(retroforth-eval (buffer-substring start end)))
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(defun retroforth-eval-block-region ()
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(interactive)
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(save-excursion
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(re-search-backward retroforth-block-regex) (next-line)
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(beginning-of-line)
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(let ((beg (point)))
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(re-search-forward retroforth-block-regex)
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(beginning-of-line)
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(pulse-momentary-highlight-region beg (point) 'retroforth-highlight-face)
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(retroforth-eval-region beg (point)))))
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(defvar retroforth-mode-map
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(let ((map (make-sparse-keymap)))
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(define-key map (kbd "C-M-x") 'retroforth-eval-block-region)
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(define-key map (kbd "C-c C-k") 'forth-kill)
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(define-key map (kbd "C-c C-f") 'forth-restart)
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(define-key map (kbd "C-c :") 'forth-eval)
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map))
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;----------------------------------------------------------
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; blocks highlight function
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;
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(defun retroforth-font-lock-extend-region ()
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"Extend the search region to include an entire block of text."
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;; Avoid compiler warnings about these global variables from font-lock.el.
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;; See the documentation for variable `font-lock-extend-region-functions'.
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(eval-when-compile (defvar font-lock-beg) (defvar font-lock-end))
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(save-excursion
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(goto-char font-lock-beg)
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(let ((found (or (re-search-backward "\n\n" nil t) (point-min))))
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(goto-char font-lock-end)
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(when (re-search-forward "\n\n" nil t)
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(beginning-of-line)
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(setq font-lock-end (point)))
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(setq font-lock-beg found))))
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;----------------------------------------------------------
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; retroforth mode
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;
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(define-derived-mode retroforth-mode text-mode "retroforth"
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"major mode for editing RETRO Forth language code."
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(setq font-lock-defaults '(retroforth-highlights))
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(set (make-local-variable 'font-lock-multiline) t)
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(add-hook 'font-lock-extend-region-functions
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'retroforth-font-lock-extend-region)
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(use-local-map retroforth-mode-map))
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(setq auto-mode-alist (cons '("\\.retro\\'" . retroforth-mode)
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auto-mode-alist))
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(provide 'retroforth)
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;; end.
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