diff --git a/.gitignore b/.gitignore index 6ac8137..91a44d9 100644 --- a/.gitignore +++ b/.gitignore @@ -1,16 +1,19 @@ +/target +/classes +/checkouts +profiles.clj pom.xml pom.xml.asc *.jar *.class -/lib/ -/classes/ -/target/ -/checkouts/ -.lein-deps-sum -.lein-repl-history -.lein-plugins/ -.lein-failures -.nrepl-port -.cpcache/ +/.lein-* +/.nrepl-port +/.prepl-port +.hgignore +.hg/ +.clj-condo/ +.calva/ +.lsp/ .clj-kondo/ -.lsp/ \ No newline at end of file +.cpcache/ +**/.DS_Store diff --git a/CHANGELOG.md b/CHANGELOG.md new file mode 100644 index 0000000..12756d5 --- /dev/null +++ b/CHANGELOG.md @@ -0,0 +1,24 @@ +# Change Log +All notable changes to this project will be documented in this file. This change log follows the conventions of [keepachangelog.com](http://keepachangelog.com/). + +## [Unreleased] +### Changed +- Add a new arity to `make-widget-async` to provide a different widget shape. + +## [0.1.1] - 2021-10-23 +### Changed +- Documentation on how to make the widgets. + +### Removed +- `make-widget-sync` - we're all async, all the time. + +### Fixed +- Fixed widget maker to keep working when daylight savings switches over. + +## 0.1.0 - 2021-10-23 +### Added +- Files from the new template. +- Widget maker public API - `make-widget-sync`. + +[Unreleased]: https://sourcehost.site/your-name/cludus/compare/0.1.1...HEAD +[0.1.1]: https://sourcehost.site/your-name/cludus/compare/0.1.0...0.1.1 diff --git a/LICENSE b/LICENSE index e62ec04..2315126 100644 --- a/LICENSE +++ b/LICENSE @@ -1,674 +1,280 @@ -GNU GENERAL PUBLIC LICENSE - Version 3, 29 June 2007 - - Copyright (C) 2007 Free Software Foundation, Inc. - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - - Preamble - - The GNU General Public License is a free, copyleft license for -software and other kinds of works. - - The licenses for most software and other practical works are designed -to take away your freedom to share and change the works. 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Nothing in this Agreement is intended +to be enforceable by any entity that is not a Contributor or Recipient. +No third-party beneficiary rights are created under this Agreement. + +Exhibit A - Form of Secondary Licenses Notice + +"This Source Code may also be made available under the following +Secondary Licenses when the conditions for such availability set forth +in the Eclipse Public License, v. 2.0 are satisfied: GNU General Public +License as published by the Free Software Foundation, either version 2 +of the License, or (at your option) any later version, with the GNU +Classpath Exception which is available at +https://www.gnu.org/software/classpath/license.html." + + Simply including a copy of this Agreement, including this Exhibit A + is not sufficient to license the Source Code under Secondary Licenses. + + If it is not possible or desirable to put the notice in a particular + file, then You may include the notice in a location (such as a LICENSE + file in a relevant directory) where a recipient would be likely to + look for such a notice. + + You may add additional accurate notices of copyright ownership. diff --git a/README.md b/README.md index 345953b..0dc1163 100644 --- a/README.md +++ b/README.md @@ -1,2 +1,22 @@ # cludus - A cljs-based tree-walk reference interpreter for Ludus + +A Clojure library designed to ... well, that part is up to you. + +## Usage + +FIXME + +## License + +Copyright © 2021 FIXME + +This program and the accompanying materials are made available under the +terms of the Eclipse Public License 2.0 which is available at +http://www.eclipse.org/legal/epl-2.0. + +This Source Code may also be made available under the following Secondary +Licenses when the conditions for such availability set forth in the Eclipse +Public License, v. 2.0 are satisfied: GNU General Public License as published by +the Free Software Foundation, either version 2 of the License, or (at your +option) any later version, with the GNU Classpath Exception which is available +at https://www.gnu.org/software/classpath/license.html. diff --git a/doc/intro.md b/doc/intro.md new file mode 100644 index 0000000..09a5f64 --- /dev/null +++ b/doc/intro.md @@ -0,0 +1,3 @@ +# Introduction to cludus + +TODO: write [great documentation](http://jacobian.org/writing/what-to-write/) diff --git a/project.clj b/project.clj new file mode 100644 index 0000000..749d1db --- /dev/null +++ b/project.clj @@ -0,0 +1,8 @@ +(defproject ludus "0.1.0-SNAPSHOT" + :description "FIXME: write description" + :url "http://example.com/FIXME" + :license {:name "EPL-2.0 OR GPL-2.0-or-later WITH Classpath-exception-2.0" + :url "https://www.eclipse.org/legal/epl-2.0/"} + :dependencies [[org.clojure/clojure "1.10.3"]] + :repl-options {:init-ns ludus.core} + :main ludus.core) diff --git a/src/ludus/core.clj b/src/ludus/core.clj new file mode 100644 index 0000000..e8ef191 --- /dev/null +++ b/src/ludus/core.clj @@ -0,0 +1,33 @@ +(ns ludus.core + "A tree-walk interpreter for the Ludus language." + (:require + [ludus.scanner :as scanner])) + +(defn- report [line, where, message] + (println (str "[line " line "] Error" where ": " message))) + +(defn- error [line, message] + (report line "" message)) + +(defn- run [source] + (let [tokens (scanner/scan source)] + (run! println tokens))) + +(defn- run-file [path] + (let [source (slurp path)] + (run source))) + +(defn- run-prompt [] + (loop [_ ""] + (print "Ludus >> ") + (flush) + (when-let [line (read-line)] + (recur (run line))))) + +(defn -main [& args] + (cond + (> (count args) 1) (do + (println "Usage: ludus [script]") + (System/exit 64)) + (= (count args) 1) (run-file (first args)) + :else (run-prompt))) \ No newline at end of file diff --git a/src/ludus/core.cljs b/src/ludus/core.cljs deleted file mode 100644 index 399dcad..0000000 --- a/src/ludus/core.cljs +++ /dev/null @@ -1,3 +0,0 @@ -(ns ludus.core) - -(.log js/console "Hello, world!") \ No newline at end of file diff --git a/src/ludus/scanner.clj b/src/ludus/scanner.clj new file mode 100644 index 0000000..d5cc7a0 --- /dev/null +++ b/src/ludus/scanner.clj @@ -0,0 +1,115 @@ +(ns ludus.scanner + (:require [ludus.token :as token])) + +(def reserved-words + "List of Ludus reserved words." + #{"fn" + "if" + "then" + "else" + "nil" + "match" + "with" + "true" + "false" + "as" + "ref" + "swap" + ;; other possibilities + ;; "pattern" -- first class patterns? + }) + +(defn- new-scanner [source] + {::source source + ::length (count source) + ::errors [] + ::start 0 + ::current 0 + ::line 1 + ::tokens []}) + +(defn- at-end? [scanner] + (>= (::current scanner) (::length scanner))) + +(defn- current-char [scanner] + (nth (::source scanner) (::current scanner))) + +(defn- advance [scanner] + (update scanner ::current inc)) + +(defn- current-lexeme [scanner] + (subs (::source scanner) (::start scanner) (::current scanner))) + +(defn- char-in-range? [start end char] + (and char + (>= (int char) (int start)) + (<= (int char) (int end)))) + +(defn- digit? [c] + (char-in-range? \0 \9 c)) + +(defn- nonzero-digit? [c] + (char-in-range? \1 \9 c)) + +(defn- alpha? [c] + (boolean (re-find #"\p{L}" (str c)))) + +;; Note that commas are whitespace in Ludus +(defn- whitespace? [c] + (or (= c \space) (= c \tab) (= c \return) (= c \,))) + +(defn- terminates? [c] + (or (whitespace? c) (= c \:) (= c \newline))) + +(defn- add-token + ([scanner token-type] + (add-token scanner token-type nil)) + ([scanner token-type literal] + (update scanner ::tokens conj (token/token token-type (current-lexeme scanner) literal (::line scanner))))) + +(defn- add-number [scanner]) + +(defn- add-string [scanner]) + +(defn- scan-token [scanner] + (let [char (current-char scanner) + scanner (advance scanner)] + (case char + ;; one-character tokens + \( (add-token scanner ::token/lparen) + \) (add-token scanner ::token/rparen) + \{ (add-token scanner ::token/lbrace) + \} (add-token scanner ::token/rbrace) + \[ (add-token scanner ::token/lbracket) + \] (add-token scanner ::token/rbracket) + \; (add-token scanner ::token/semicolon) + \newline (add-token scanner ::token/newline) + ;; two-character tokens + ;; -> + ;; <- + ;; // + ;; begin hashmap #{ + ;; begin set ${ + + ;; keywords + ;;\: (add-keyword scanner) + + ;; strings + ;;\" + + ;; word matches + (comment (cond + (digit? char) (add-number scanner) + (alpha? char) (add-word scanner) + (= \_ char) (add-placeholder scanner) + :else (add-error scanner (str "Unexpected character: " char))))))) + +(defn- next-token [scanner] + (assoc scanner ::start (::current scanner))) + +(defn scan [source] + (loop [scanner (new-scanner source)] + (if (at-end? scanner) + (let [scanner (add-token scanner ::eof)] + [(::tokens scanner) (::errors scanner)]) + (recur (-> scanner (scan-token) (next-token)))))) \ No newline at end of file diff --git a/src/ludus/token.clj b/src/ludus/token.clj new file mode 100644 index 0000000..fa2f0e7 --- /dev/null +++ b/src/ludus/token.clj @@ -0,0 +1,13 @@ +(ns ludus.token) + +(defn token + ([type text] + (token type text nil 1)) + ([type text literal line] + {::type type + ::lexeme text + ::literal literal + ::line line})) + +(defn from-keyword [kw] + (keyword "ludus.token" kw)) diff --git a/test/cludus/core_test.clj b/test/cludus/core_test.clj new file mode 100644 index 0000000..245b467 --- /dev/null +++ b/test/cludus/core_test.clj @@ -0,0 +1,7 @@ +(ns cludus.core-test + (:require [clojure.test :refer :all] + [cludus.core :refer :all])) + +(deftest a-test + (testing "FIXME, I fail." + (is (= 0 1))))