From fd888612ca589d7e1a46c36fc3fe12aed126f6a8 Mon Sep 17 00:00:00 2001 From: Joel Martin Date: Thu, 8 Jan 2015 22:56:12 -0600 Subject: Move template to top level. Add license. Also, cleanup TODO a bit. --- LICENSE.txt | 387 ++++++++++++++++++++++++++++++++++++++++ README.md | 9 + docs/TODO | 33 +--- docs/steps/step0_repl.txt | 11 -- docs/steps/step1_read_print.txt | 14 -- docs/steps/step2_eval.txt | 25 --- docs/steps/step3_env.txt | 38 ---- docs/steps/step4_if_fn_do.txt | 76 -------- docs/steps/step5_tco.txt | 78 -------- docs/steps/step6_file.txt | 85 --------- docs/steps/step7_quote.txt | 92 ---------- docs/steps/step8_macros.txt | 102 ----------- docs/steps/step9_try.txt | 109 ----------- docs/steps/stepA_interop.txt | 112 ------------ docs/steps/stepA_interop2.txt | 131 -------------- template/step0_repl.txt | 11 ++ template/step1_read_print.txt | 14 ++ template/step2_eval.txt | 25 +++ template/step3_env.txt | 38 ++++ template/step4_if_fn_do.txt | 76 ++++++++ template/step5_tco.txt | 78 ++++++++ template/step6_file.txt | 85 +++++++++ template/step7_quote.txt | 92 ++++++++++ template/step8_macros.txt | 102 +++++++++++ template/step9_try.txt | 109 +++++++++++ template/stepA_interop.txt | 112 ++++++++++++ template/stepA_interop2.txt | 131 ++++++++++++++ 27 files changed, 1270 insertions(+), 905 deletions(-) create mode 100644 LICENSE.txt delete mode 100644 docs/steps/step0_repl.txt delete mode 100644 docs/steps/step1_read_print.txt delete mode 100644 docs/steps/step2_eval.txt delete mode 100644 docs/steps/step3_env.txt delete mode 100644 docs/steps/step4_if_fn_do.txt delete mode 100644 docs/steps/step5_tco.txt delete mode 100644 docs/steps/step6_file.txt delete mode 100644 docs/steps/step7_quote.txt delete mode 100644 docs/steps/step8_macros.txt delete mode 100644 docs/steps/step9_try.txt delete mode 100644 docs/steps/stepA_interop.txt delete mode 100644 docs/steps/stepA_interop2.txt create mode 100644 template/step0_repl.txt create mode 100644 template/step1_read_print.txt create mode 100644 template/step2_eval.txt create mode 100644 template/step3_env.txt create mode 100644 template/step4_if_fn_do.txt create mode 100644 template/step5_tco.txt create mode 100644 template/step6_file.txt create mode 100644 template/step7_quote.txt create mode 100644 template/step8_macros.txt create mode 100644 template/step9_try.txt create mode 100644 template/stepA_interop.txt create mode 100644 template/stepA_interop2.txt diff --git a/LICENSE.txt b/LICENSE.txt new file mode 100644 index 0000000..3bfdf5f --- /dev/null +++ b/LICENSE.txt @@ -0,0 +1,387 @@ +Copyright (C) 2015 Joel Martin + +Mal (make-a-lisp) is licensed under the MPL 2.0 (Mozilla Public +License 2.0). The text of the MPL 2.0 license is included below and +can be found at https://www.mozilla.org/MPL/2.0/ + +Many of the implemenations run or compile using a line editing +library. In some cases, the implementations provide an option in the +code to switch between the GNU GPL licensed GNU readline library and +the BSD licensed editline (libedit) library. + + +Mozilla Public License Version 2.0 +================================== + +1. Definitions +-------------- + +1.1. "Contributor" + means each individual or legal entity that creates, contributes to + the creation of, or owns Covered Software. + +1.2. "Contributor Version" + means the combination of the Contributions of others (if any) used + by a Contributor and that particular Contributor's Contribution. + +1.3. "Contribution" + means Covered Software of a particular Contributor. + +1.4. "Covered Software" + means Source Code Form to which the initial Contributor has attached + the notice in Exhibit A, the Executable Form of such Source Code + Form, and Modifications of such Source Code Form, in each case + including portions thereof. + +1.5. "Incompatible With Secondary Licenses" + means + + (a) that the initial Contributor has attached the notice described + in Exhibit B to the Covered Software; or + + (b) that the Covered Software was made available under the terms of + version 1.1 or earlier of the License, but not also under the + terms of a Secondary License. + +1.6. "Executable Form" + means any form of the work other than Source Code Form. + +1.7. "Larger Work" + means a work that combines Covered Software with other material, in + a separate file or files, that is not Covered Software. + +1.8. "License" + means this document. + +1.9. "Licensable" + means having the right to grant, to the maximum extent possible, + whether at the time of the initial grant or subsequently, any and + all of the rights conveyed by this License. + +1.10. "Modifications" + means any of the following: + + (a) any file in Source Code Form that results from an addition to, + deletion from, or modification of the contents of Covered + Software; or + + (b) any new file in Source Code Form that contains any Covered + Software. + +1.11. "Patent Claims" of a Contributor + means any patent claim(s), including without limitation, method, + process, and apparatus claims, in any patent Licensable by such + Contributor that would be infringed, but for the grant of the + License, by the making, using, selling, offering for sale, having + made, import, or transfer of either its Contributions or its + Contributor Version. + +1.12. "Secondary License" + means either the GNU General Public License, Version 2.0, the GNU + Lesser General Public License, Version 2.1, the GNU Affero General + Public License, Version 3.0, or any later versions of those + licenses. + +1.13. "Source Code Form" + means the form of the work preferred for making modifications. + +1.14. "You" (or "Your") + means an individual or a legal entity exercising rights under this + License. For legal entities, "You" includes any entity that + controls, is controlled by, or is under common control with You. For + purposes of this definition, "control" means (a) the power, direct + or indirect, to cause the direction or management of such entity, + whether by contract or otherwise, or (b) ownership of more than + fifty percent (50%) of the outstanding shares or beneficial + ownership of such entity. + +2. License Grants and Conditions +-------------------------------- + +2.1. Grants + +Each Contributor hereby grants You a world-wide, royalty-free, +non-exclusive license: + +(a) under intellectual property rights (other than patent or trademark) + Licensable by such Contributor to use, reproduce, make available, + modify, display, perform, distribute, and otherwise exploit its + Contributions, either on an unmodified basis, with Modifications, or + as part of a Larger Work; and + +(b) under Patent Claims of such Contributor to make, use, sell, offer + for sale, have made, import, and otherwise transfer either its + Contributions or its Contributor Version. + +2.2. Effective Date + +The licenses granted in Section 2.1 with respect to any Contribution +become effective for each Contribution on the date the Contributor first +distributes such Contribution. + +2.3. Limitations on Grant Scope + +The licenses granted in this Section 2 are the only rights granted under +this License. No additional rights or licenses will be implied from the +distribution or licensing of Covered Software under this License. +Notwithstanding Section 2.1(b) above, no patent license is granted by a +Contributor: + +(a) for any code that a Contributor has removed from Covered Software; + or + +(b) for infringements caused by: (i) Your and any other third party's + modifications of Covered Software, or (ii) the combination of its + Contributions with other software (except as part of its Contributor + Version); or + +(c) under Patent Claims infringed by Covered Software in the absence of + its Contributions. + +This License does not grant any rights in the trademarks, service marks, +or logos of any Contributor (except as may be necessary to comply with +the notice requirements in Section 3.4). + +2.4. Subsequent Licenses + +No Contributor makes additional grants as a result of Your choice to +distribute the Covered Software under a subsequent version of this +License (see Section 10.2) or under the terms of a Secondary License (if +permitted under the terms of Section 3.3). + +2.5. Representation + +Each Contributor represents that the Contributor believes its +Contributions are its original creation(s) or it has sufficient rights +to grant the rights to its Contributions conveyed by this License. + +2.6. Fair Use + +This License is not intended to limit any rights You have under +applicable copyright doctrines of fair use, fair dealing, or other +equivalents. + +2.7. Conditions + +Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted +in Section 2.1. + +3. Responsibilities +------------------- + +3.1. Distribution of Source Form + +All distribution of Covered Software in Source Code Form, including any +Modifications that You create or to which You contribute, must be under +the terms of this License. You must inform recipients that the Source +Code Form of the Covered Software is governed by the terms of this +License, and how they can obtain a copy of this License. You may not +attempt to alter or restrict the recipients' rights in the Source Code +Form. + +3.2. Distribution of Executable Form + +If You distribute Covered Software in Executable Form then: + +(a) such Covered Software must also be made available in Source Code + Form, as described in Section 3.1, and You must inform recipients of + the Executable Form how they can obtain a copy of such Source Code + Form by reasonable means in a timely manner, at a charge no more + than the cost of distribution to the recipient; and + +(b) You may distribute such Executable Form under the terms of this + License, or sublicense it under different terms, provided that the + license for the Executable Form does not attempt to limit or alter + the recipients' rights in the Source Code Form under this License. + +3.3. Distribution of a Larger Work + +You may create and distribute a Larger Work under terms of Your choice, +provided that You also comply with the requirements of this License for +the Covered Software. If the Larger Work is a combination of Covered +Software with a work governed by one or more Secondary Licenses, and the +Covered Software is not Incompatible With Secondary Licenses, this +License permits You to additionally distribute such Covered Software +under the terms of such Secondary License(s), so that the recipient of +the Larger Work may, at their option, further distribute the Covered +Software under the terms of either this License or such Secondary +License(s). + +3.4. Notices + +You may not remove or alter the substance of any license notices +(including copyright notices, patent notices, disclaimers of warranty, +or limitations of liability) contained within the Source Code Form of +the Covered Software, except that You may alter any license notices to +the extent required to remedy known factual inaccuracies. + +3.5. Application of Additional Terms + +You may choose to offer, and to charge a fee for, warranty, support, +indemnity or liability obligations to one or more recipients of Covered +Software. However, You may do so only on Your own behalf, and not on +behalf of any Contributor. You must make it absolutely clear that any +such warranty, support, indemnity, or liability obligation is offered by +You alone, and You hereby agree to indemnify every Contributor for any +liability incurred by such Contributor as a result of warranty, support, +indemnity or liability terms You offer. You may include additional +disclaimers of warranty and limitations of liability specific to any +jurisdiction. + +4. Inability to Comply Due to Statute or Regulation +--------------------------------------------------- + +If it is impossible for You to comply with any of the terms of this +License with respect to some or all of the Covered Software due to +statute, judicial order, or regulation then You must: (a) comply with +the terms of this License to the maximum extent possible; and (b) +describe the limitations and the code they affect. Such description must +be placed in a text file included with all distributions of the Covered +Software under this License. Except to the extent prohibited by statute +or regulation, such description must be sufficiently detailed for a +recipient of ordinary skill to be able to understand it. + +5. Termination +-------------- + +5.1. The rights granted under this License will terminate automatically +if You fail to comply with any of its terms. However, if You become +compliant, then the rights granted under this License from a particular +Contributor are reinstated (a) provisionally, unless and until such +Contributor explicitly and finally terminates Your grants, and (b) on an +ongoing basis, if such Contributor fails to notify You of the +non-compliance by some reasonable means prior to 60 days after You have +come back into compliance. Moreover, Your grants from a particular +Contributor are reinstated on an ongoing basis if such Contributor +notifies You of the non-compliance by some reasonable means, this is the +first time You have received notice of non-compliance with this License +from such Contributor, and You become compliant prior to 30 days after +Your receipt of the notice. + +5.2. If You initiate litigation against any entity by asserting a patent +infringement claim (excluding declaratory judgment actions, +counter-claims, and cross-claims) alleging that a Contributor Version +directly or indirectly infringes any patent, then the rights granted to +You by any and all Contributors for the Covered Software under Section +2.1 of this License shall terminate. + +5.3. In the event of termination under Sections 5.1 or 5.2 above, all +end user license agreements (excluding distributors and resellers) which +have been validly granted by You or Your distributors under this License +prior to termination shall survive termination. + +************************************************************************ +* * +* 6. Disclaimer of Warranty * +* ------------------------- * +* * +* Covered Software is provided under this License on an "as is" * +* basis, without warranty of any kind, either expressed, implied, or * +* statutory, including, without limitation, warranties that the * +* Covered Software is free of defects, merchantable, fit for a * +* particular purpose or non-infringing. The entire risk as to the * +* quality and performance of the Covered Software is with You. * +* Should any Covered Software prove defective in any respect, You * +* (not any Contributor) assume the cost of any necessary servicing, * +* repair, or correction. This disclaimer of warranty constitutes an * +* essential part of this License. No use of any Covered Software is * +* authorized under this License except under this disclaimer. * +* * +************************************************************************ + +************************************************************************ +* * +* 7. Limitation of Liability * +* -------------------------- * +* * +* Under no circumstances and under no legal theory, whether tort * +* (including negligence), contract, or otherwise, shall any * +* Contributor, or anyone who distributes Covered Software as * +* permitted above, be liable to You for any direct, indirect, * +* special, incidental, or consequential damages of any character * +* including, without limitation, damages for lost profits, loss of * +* goodwill, work stoppage, computer failure or malfunction, or any * +* and all other commercial damages or losses, even if such party * +* shall have been informed of the possibility of such damages. This * +* limitation of liability shall not apply to liability for death or * +* personal injury resulting from such party's negligence to the * +* extent applicable law prohibits such limitation. Some * +* jurisdictions do not allow the exclusion or limitation of * +* incidental or consequential damages, so this exclusion and * +* limitation may not apply to You. * +* * +************************************************************************ + +8. Litigation +------------- + +Any litigation relating to this License may be brought only in the +courts of a jurisdiction where the defendant maintains its principal +place of business and such litigation shall be governed by laws of that +jurisdiction, without reference to its conflict-of-law provisions. +Nothing in this Section shall prevent a party's ability to bring +cross-claims or counter-claims. + +9. Miscellaneous +---------------- + +This License represents the complete agreement concerning the subject +matter hereof. If any provision of this License is held to be +unenforceable, such provision shall be reformed only to the extent +necessary to make it enforceable. Any law or regulation which provides +that the language of a contract shall be construed against the drafter +shall not be used to construe this License against a Contributor. + +10. Versions of the License +--------------------------- + +10.1. New Versions + +Mozilla Foundation is the license steward. Except as provided in Section +10.3, no one other than the license steward has the right to modify or +publish new versions of this License. Each version will be given a +distinguishing version number. + +10.2. Effect of New Versions + +You may distribute the Covered Software under the terms of the version +of the License under which You originally received the Covered Software, +or under the terms of any subsequent version published by the license +steward. + +10.3. Modified Versions + +If you create software not governed by this License, and you want to +create a new license for such software, you may create and use a +modified version of this License if you rename the license and remove +any references to the name of the license steward (except to note that +such modified license differs from this License). + +10.4. Distributing Source Code Form that is Incompatible With Secondary +Licenses + +If You choose to distribute Source Code Form that is Incompatible With +Secondary Licenses under the terms of this version of the License, the +notice described in Exhibit B of this License must be attached. + +Exhibit A - Source Code Form License Notice +------------------------------------------- + + This Source Code Form is subject to the terms of the Mozilla Public + License, v. 2.0. If a copy of the MPL was not distributed with this + file, You can obtain one at http://mozilla.org/MPL/2.0/. + +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. + +Exhibit B - "Incompatible With Secondary Licenses" Notice +--------------------------------------------------------- + + This Source Code Form is "Incompatible With Secondary Licenses", as + defined by the Mozilla Public License, v. 2.0. + + diff --git a/README.md b/README.md index 1059151..24a7011 100644 --- a/README.md +++ b/README.md @@ -104,6 +104,9 @@ coffee ./stepX_YYY ### Go +You Go implementation of mal requires that go is installed on on the +path. The implementation has been tested with Go 1.3.1. + ``` cd go make @@ -315,3 +318,9 @@ make test^IMPL^stepX make test^ruby^step3 make test^ps^step4 ``` + +## License + +Mal (make-a-lisp) is licensed under the MPL 2.0 (Mozilla Public +License 2.0). See LICENSE.txt for more details. + diff --git a/docs/TODO b/docs/TODO index b29f5b1..4650d09 100644 --- a/docs/TODO +++ b/docs/TODO @@ -1,16 +1,13 @@ All: - * keyword type (with hash-map key support) - * Move *host-language* from step9 to stepA - change perf test to run for 10 seconds and then calculate number of iterations per second - redefine (defmacro!) as (def! (macro*)) - runtest expect fixes: - stop using expect, so we can drop --raw option - fix long lines in runtext/expect - - add license file - add re (use in rep) everywhere and use that (to avoid printing) - move conj and sequential? to core.mal - - Implement/fix interop: C#, Java, Mal, PHP, Postscript, Ruby + - Implement/fix interop - regular expression matching in runtest - Print full exception when test gets EOF from expect @@ -66,8 +63,6 @@ Javascript: - interop: callbacks using Mal functions Make: - * large number handling (move away from peano) - * then fix time-ms/perf.mal - allow '_' in make variable names - hash-map with space in key string - Fix: make -f stepA_interop.mk ../mal/step6_file.mal @@ -95,33 +90,12 @@ Python: - python3 compatibility R: - - Links: - - https://stat.ethz.ch/R-manual/R-devel/library/base/html/readline.html - - http://dssm.unipa.it/CRAN/web/packages/rdyncall/rdyncall.pdf - - http://www.dyncall.org/docs/FFI.pdf - tracebacks in errors - fix running from different directory Ruby: Rust: - - Links: - - http://doc.rust-lang.org/index.html - - http://doc.rust-lang.org/intro.html - - http://doc.rust-lang.org/guide.html - - http://rustbyexample.com/index.html - - http://www.rustforrubyists.com/book/index.html - - http://pzol.github.io/getting_rusty/ - - - http://featherweightmusings.blogspot.com/2014/05/rust-for-c-programmers-part-6-rc-gc-and.html - - http://pzol.github.io/getting_rusty/posts/20140417_destructuring_in_rust/ (destructuring) - - http://featherweightmusings.blogspot.com/2014/07/rust-for-c-programmers-part-8.html (destructuring) - - http://featherweightmusings.blogspot.co.nz/2014/07/rust-for-c-programmers-part-9.html (destructuruing and matching) - - http://blog.thiago.me/notes-about-rust-modules/ - - http://doc.rust-lang.org/std/io/io - - https://github.com/shaleh/rust-readline/blob/master/src/lib.rs - - http://stackoverflow.com/questions/23942627/does-rust-0-10-have-a-rl-package - - http://blog.skylight.io/rust-means-never-having-to-close-a-socket/ - use built-in regex once fixed: https://github.com/rust-lang/rust/issues/18034 https://github.com/rust-lang/rust/issues/18035 @@ -130,14 +104,9 @@ Racket - metadata on collections Scala - - aptitude install scala - - http://learnxinyminutes.com/docs/scala/ - readline VB.Net - - aptitude install mono-vbnc - - http://www.codeproject.com/Articles/9978/Complete-Comparison-for-VB-NET-and-C - - http://msdn.microsoft.com/en-us/library/8hb2a397.aspx - convert readline.cs to readline.vb diff --git a/docs/steps/step0_repl.txt b/docs/steps/step0_repl.txt deleted file mode 100644 index db31e58..0000000 --- a/docs/steps/step0_repl.txt +++ /dev/null @@ -1,11 +0,0 @@ ---- step0_repl ---------------------------------- -READ(str): return str - -EVAL(ast,any): return ast - -PRINT(exp): return exp - -rep(str): return PRINT(EVAL(READ(str),"")) - -main loop: println(rep(readline("user> "))) - diff --git a/docs/steps/step1_read_print.txt b/docs/steps/step1_read_print.txt deleted file mode 100644 index 3a0fd7c..0000000 --- a/docs/steps/step1_read_print.txt +++ /dev/null @@ -1,14 +0,0 @@ ---- step1_read_print ---------------------------- -import reader, printer - -READ(str): return reader.read_str(str) - -EVAL(ast,env): return ast - -PRINT(exp): return printer.pr_str(exp) - -rep(str): return PRINT(EVAL(READ(str),"")) - -main loop: - try: println(rep(readline("user> "))) - catch e: println("Error: ", e) diff --git a/docs/steps/step2_eval.txt b/docs/steps/step2_eval.txt deleted file mode 100644 index beb5500..0000000 --- a/docs/steps/step2_eval.txt +++ /dev/null @@ -1,25 +0,0 @@ ---- step2_eval ---------------------------------- -import types, reader, printer - -READ(str): return reader.read_str(str) - -eval_ast(ast,env): - switch type(ast): - symbol: return lookup(env, ast) OR raise "'" + ast + "' not found" - list,vector: return ast.map((x) -> EVAL(x,env)) - hash: return ast.map((k,v) -> list(k, EVAL(v,env))) - _default_: return ast - -EVAL(ast,env): - if not list?(ast): return eval_ast(ast, env) - f, args = eval_ast(ast, env) - return apply(f, args) - -PRINT(exp): return printer.pr_str(exp) - -repl_env = {'+: add_fn, ...} -rep(str): return PRINT(EVAL(READ(str),repl_env)) - -main loop: - try: println(rep(readline("user> "))) - catch e: println("Error: ", e) diff --git a/docs/steps/step3_env.txt b/docs/steps/step3_env.txt deleted file mode 100644 index a1de572..0000000 --- a/docs/steps/step3_env.txt +++ /dev/null @@ -1,38 +0,0 @@ ---- step3_env ----------------------------------- -import types, reader, printer, env - -READ(str): return reader.read_str(str) - -eval_ast(ast,env): - switch type(ast): - symbol: return env.get(ast) - list,vector: return ast.map((x) -> EVAL(x,env)) - hash: return ast.map((k,v) -> list(k, EVAL(v,env))) - _default_: return ast - -EVAL(ast,env): - if not list?(ast): return eval_ast(ast, env) - switch ast[0]: - 'def!: return env.set(ast[1], EVAL(ast[2], env)) - 'let*: return EVAL(ast[2], ...) - _default_: f, args = eval_ast(ast, env) - return apply(f, args) - -PRINT(exp): return printer.pr_str(exp) - -repl_env = new Env() -rep(str): return PRINT(EVAL(READ(str),repl_env)) - -repl_env.set('+, add_fn) - ... - -main loop: - try: println(rep(readline("user> "))) - catch e: println("Error: ", e) - ---- env module ---------------------------------- -class Env (outer=null) - data = hash_map() - set(k,v): return data.set(k,v) - find(k): return data.has(k) ? this : (if outer ? find(outer) : null) - get(k): return data.find(k).get(k) OR raise "'" + k + "' not found" diff --git a/docs/steps/step4_if_fn_do.txt b/docs/steps/step4_if_fn_do.txt deleted file mode 100644 index 805d9b1..0000000 --- a/docs/steps/step4_if_fn_do.txt +++ /dev/null @@ -1,76 +0,0 @@ ---- step4_if_fn_do ------------------------------ -import types, reader, printer, env, core - -READ(str): return reader.read_str(str) - -eval_ast(ast,env): - switch type(ast): - symbol: return env.get(ast) - list,vector: return ast.map((x) -> EVAL(x,env)) - hash: return ast.map((k,v) -> list(k, EVAL(v,env))) - _default_: return ast - -EVAL(ast,env): - if not list?(ast): return eval_ast(ast, env) - switch ast[0]: - 'def!: return env.set(ast[1], EVAL(ast[2], env)) - 'let*: return EVAL(ast[2], ...) - 'do: return eval_ast(rest(ast), env)[-1] - 'if: return EVAL(EVAL(ast[1], env) ? ast[2] : ast[3], env) - 'fn*: return (...a) -> EVAL(ast[2], new Env(env, ast[1], a)) - _default_: f, args = eval_ast(ast, env) - return apply(f, args) - -PRINT(exp): return printer.pr_str(exp) - -repl_env = new Env() -rep(str): return PRINT(EVAL(READ(str),repl_env)) - -;; core.EXT: defined using Racket -core.ns.map((k,v) -> (repl_env.set(k, v))) - -;; core.mal: defined using the language itself -rep("(def! not (fn* (a) (if a false true)))") - -main loop: - try: println(rep(readline("user> "))) - catch e: println("Error: ", e) - ---- env module ---------------------------------- -class Env (outer=null,binds=[],exprs=[]) - data = hash_map() - foreach b, i in binds: - if binds[i] == '&: data[binds[i+1]] = exprs.drop(i); break - else: data[binds[i]] = exprs[i] - set(k,v): return data.set(k,v) - find(k): return data.has(k) ? this : (if outer ? find(outer) : null) - get(k): return data.find(k).get(k) OR raise "'" + k + "' not found" - ---- core module --------------------------------- -ns = {'=: equal?, - 'nil?: nil?, - 'true?: true?, - 'false?: false?, - 'symbol?: symbol?, - - 'pr-str: (a) -> a.map(|s| pr_str(e,true)).join(" ")), - 'str: (a) -> a.map(|s| pr_str(e,false)).join("")), - 'prn: (a) -> println(a.map(|s| pr_str(e,true)).join(" ")), - 'println: (a) -> println(a.map(|s| pr_str(e,false)).join(" ")), - - '<: lt, - '<=: lte, - '>: gt, - '>=: gte, - '+: add, - '-: sub, - '*: mult, - '/: div, - - 'list: list, - 'list?: list?, - 'hash-map: hash_map, - 'map?: hash_map?, - - 'empty?: empty?, - 'count: count} diff --git a/docs/steps/step5_tco.txt b/docs/steps/step5_tco.txt deleted file mode 100644 index 30e2a46..0000000 --- a/docs/steps/step5_tco.txt +++ /dev/null @@ -1,78 +0,0 @@ ---- step5_tco ----------------------------------- -import types, reader, printer, env, core - -READ(str): return reader.read_str(str) - -eval_ast(ast,env): - switch type(ast): - symbol: return env.get(ast) - list,vector: return ast.map((x) -> EVAL(x,env)) - hash: return ast.map((k,v) -> list(k, EVAL(v,env))) - _default_: return ast - -EVAL(ast,env): - while true: - if not list?(ast): return eval_ast(ast, env) - switch ast[0]: - 'def!: return env.set(ast[1], EVAL(ast[2], env)) - 'let*: env = ...; ast = ast[2] // TCO - 'do: ast = eval_ast(ast[1..-1], env)[-1] // TCO - 'if: EVAL(ast[1], env) ? ast = ast[2] : ast = ast[3] // TCO - 'fn*: return new MalFunc(...) - _default_: f, args = eval_ast(ast, env) - if malfunc?(ast[0]): ast = ast[0].fn; env = ... // TCO - else: return apply(f, args) - -PRINT(exp): return printer.pr_str(exp) - -repl_env = new Env() -rep(str): return PRINT(EVAL(READ(str),repl_env)) - -;; core.EXT: defined using Racket -core.ns.map((k,v) -> (repl_env.set(k, v))) - -;; core.mal: defined using the language itself -rep("(def! not (fn* (a) (if a false true)))") - -main loop: - try: println(rep(readline("user> "))) - catch e: println("Error: ", e) - ---- env module ---------------------------------- -class Env (outer=null,binds=[],exprs=[]) - data = hash_map() - foreach b, i in binds: - if binds[i] == '&: data[binds[i+1]] = exprs.drop(i); break - else: data[binds[i]] = exprs[i] - set(k,v): return data.set(k,v) - find(k): return data.has(k) ? this : (if outer ? find(outer) : null) - get(k): return data.find(k).get(k) OR raise "'" + k + "' not found" - ---- core module --------------------------------- -ns = {'=: equal?, - 'nil?: nil?, - 'true?: true?, - 'false?: false?, - 'symbol?: symbol?, - - 'pr-str: (a) -> a.map(|s| pr_str(e,true)).join(" ")), - 'str: (a) -> a.map(|s| pr_str(e,false)).join("")), - 'prn: (a) -> println(a.map(|s| pr_str(e,true)).join(" ")), - 'println: (a) -> println(a.map(|s| pr_str(e,false)).join(" ")), - - '<: lt, - '<=: lte, - '>: gt, - '>=: gte, - '+: add, - '-: sub, - '*: mult, - '/: div, - - 'list: list, - 'list?: list?, - 'hash-map: hash_map, - 'map?: hash_map?, - - 'empty?: empty?, - 'count: count} diff --git a/docs/steps/step6_file.txt b/docs/steps/step6_file.txt deleted file mode 100644 index bccf8fa..0000000 --- a/docs/steps/step6_file.txt +++ /dev/null @@ -1,85 +0,0 @@ ---- step6_file ---------------------------------- -import types, reader, printer, env, core - -READ(str): return reader.read_str(str) - -eval_ast(ast,env): - switch type(ast): - symbol: return env.get(ast) - list,vector: return ast.map((x) -> EVAL(x,env)) - hash: return ast.map((k,v) -> list(k, EVAL(v,env))) - _default_: return ast - -EVAL(ast,env): - while true: - if not list?(ast): return eval_ast(ast, env) - switch ast[0]: - 'def!: return env.set(ast[1], EVAL(ast[2], env)) - 'let*: env = ...; ast = ast[2] // TCO - 'do: ast = eval_ast(ast[1..-1], env)[-1] // TCO - 'if: EVAL(ast[1], env) ? ast = ast[2] : ast = ast[3] // TCO - 'fn*: return new MalFunc(...) - _default_: f, args = eval_ast(ast, env) - if malfunc?(ast[0]): ast = ast[0].fn; env = ... // TCO - else: return apply(f, args) - -PRINT(exp): return printer.pr_str(exp) - -repl_env = new Env() -rep(str): return PRINT(EVAL(READ(str),repl_env)) - -;; core.EXT: defined using Racket -core.ns.map((k,v) -> (repl_env.set(k, v))) -repl_env.set('eval, (ast) -> EVAL(ast, repl-env)) -repl_env.set('*ARGV*, cmdline_args[1..]) - -;; core.mal: defined using the language itself -rep("(def! not (fn* (a) (if a false true)))") -rep("(def! load-file (fn* (f) ...))") - -if cmdline_args: rep("(load-file \"" + args[0] + "\")"); exit 0 - -main loop: - try: println(rep(readline("user> "))) - catch e: println("Error: ", e) - ---- env module ---------------------------------- -class Env (outer=null,binds=[],exprs=[]) - data = hash_map() - foreach b, i in binds: - if binds[i] == '&: data[binds[i+1]] = exprs.drop(i); break - else: data[binds[i]] = exprs[i] - set(k,v): return data.set(k,v) - find(k): return data.has(k) ? this : (if outer ? find(outer) : null) - get(k): return data.find(k).get(k) OR raise "'" + k + "' not found" - ---- core module --------------------------------- -ns = {'=: equal?, - 'nil?: nil?, - 'true?: true?, - 'false?: false?, - 'symbol?: symbol?, - - 'pr-str: (a) -> a.map(|s| pr_str(e,true)).join(" ")), - 'str: (a) -> a.map(|s| pr_str(e,false)).join("")), - 'prn: (a) -> println(a.map(|s| pr_str(e,true)).join(" ")), - 'println: (a) -> println(a.map(|s| pr_str(e,false)).join(" ")), - 'read-string: read_str, - 'slurp read-file, - - '<: lt, - '<=: lte, - '>: gt, - '>=: gte, - '+: add, - '-: sub, - '*: mult, - '/: div, - - 'list: list, - 'list?: list?, - 'hash-map: hash_map, - 'map?: hash_map?, - - 'empty?: empty?, - 'count: count} diff --git a/docs/steps/step7_quote.txt b/docs/steps/step7_quote.txt deleted file mode 100644 index c166257..0000000 --- a/docs/steps/step7_quote.txt +++ /dev/null @@ -1,92 +0,0 @@ ---- step7_quote --------------------------------- -import types, reader, printer, env, core - -READ(str): return reader.read_str(str) - -pair?(ast): return ... // true if non-empty sequence -quasiquote(ast): return ... // quasiquote - -eval_ast(ast,env): - switch type(ast): - symbol: return env.get(ast) - list,vector: return ast.map((x) -> EVAL(x,env)) - hash: return ast.map((k,v) -> list(k, EVAL(v,env))) - _default_: return ast - -EVAL(ast,env): - while true: - if not list?(ast): return eval_ast(ast, env) - switch ast[0]: - 'def!: return env.set(ast[1], EVAL(ast[2], env)) - 'let*: env = ...; ast = ast[2] // TCO - 'quote: return ast[1] - 'quasiquote: ast = quasiquote(ast[1]) // TCO - 'do: ast = eval_ast(ast[1..-1], env)[-1] // TCO - 'if: EVAL(ast[1], env) ? ast = ast[2] : ast = ast[3] // TCO - 'fn*: return new MalFunc(...) - _default_: f, args = eval_ast(ast, env) - if malfunc?(ast[0]): ast = ast[0].fn; env = ... // TCO - else: return apply(f, args) - -PRINT(exp): return printer.pr_str(exp) - -repl_env = new Env() -rep(str): return PRINT(EVAL(READ(str),repl_env)) - -;; core.EXT: defined using Racket -core.ns.map((k,v) -> (repl_env.set(k, v))) -repl_env.set('eval, (ast) -> EVAL(ast, repl-env)) -repl_env.set('*ARGV*, cmdline_args[1..]) - -;; core.mal: defined using the language itself -rep("(def! not (fn* (a) (if a false true)))") -rep("(def! load-file (fn* (f) ...))") - -if cmdline_args: rep("(load-file \"" + args[0] + "\")"); exit 0 - -main loop: - try: println(rep(readline("user> "))) - catch e: println("Error: ", e) - ---- env module ---------------------------------- -class Env (outer=null,binds=[],exprs=[]) - data = hash_map() - foreach b, i in binds: - if binds[i] == '&: data[binds[i+1]] = exprs.drop(i); break - else: data[binds[i]] = exprs[i] - set(k,v): return data.set(k,v) - find(k): return data.has(k) ? this : (if outer ? find(outer) : null) - get(k): return data.find(k).get(k) OR raise "'" + k + "' not found" - ---- core module --------------------------------- -ns = {'=: equal?, - 'nil?: nil?, - 'true?: true?, - 'false?: false?, - 'symbol?: symbol?, - - 'pr-str: (a) -> a.map(|s| pr_str(e,true)).join(" ")), - 'str: (a) -> a.map(|s| pr_str(e,false)).join("")), - 'prn: (a) -> println(a.map(|s| pr_str(e,true)).join(" ")), - 'println: (a) -> println(a.map(|s| pr_str(e,false)).join(" ")), - 'read-string: read_str, - 'slurp read-file, - - '<: lt, - '<=: lte, - '>: gt, - '>=: gte, - '+: add, - '-: sub, - '*: mult, - '/: div, - - 'list: list, - 'list?: list?, - 'hash-map: hash_map, - 'map?: hash_map?, - - 'cons: (a) -> concat([a[0]], a[1]), - 'concat: (a) -> reduce(concat, [], a), - 'empty?: empty?, - 'count: count} diff --git a/docs/steps/step8_macros.txt b/docs/steps/step8_macros.txt deleted file mode 100644 index da68191..0000000 --- a/docs/steps/step8_macros.txt +++ /dev/null @@ -1,102 +0,0 @@ ---- step8_macros -------------------------------- -import types, reader, printer, env, core - -READ(str): return reader.read_str(str) - -pair?(ast): return ... // true if non-empty sequence -quasiquote(ast): return ... // quasiquote - -macro?(ast, env): return ... // true if macro function -macroexpand(ast, env): return ... // recursive macro expansion - -eval_ast(ast,env): - switch type(ast): - symbol: return env.get(ast) - list,vector: return ast.map((x) -> EVAL(x,env)) - hash: return ast.map((k,v) -> list(k, EVAL(v,env))) - _default_: return ast - -EVAL(ast,env): - while true: - if not list?(ast): return eval_ast(ast, env) - switch ast[0]: - 'def!: return env.set(ast[1], EVAL(ast[2], env)) - 'let*: env = ...; ast = ast[2] // TCO - 'quote: return ast[1] - 'quasiquote: ast = quasiquote(ast[1]) // TCO - 'defmacro!: return ... // like def!, but set macro property - 'macroexpand: return macroexpand(ast[1], env) - 'do: ast = eval_ast(ast[1..-1], env)[-1] // TCO - 'if: EVAL(ast[1], env) ? ast = ast[2] : ast = ast[3] // TCO - 'fn*: return new MalFunc(...) - _default_: f, args = eval_ast(ast, env) - if malfunc?(ast[0]): ast = ast[0].fn; env = ... // TCO - else: return apply(f, args) - -PRINT(exp): return printer.pr_str(exp) - -repl_env = new Env() -rep(str): return PRINT(EVAL(READ(str),repl_env)) - -;; core.EXT: defined using Racket -core.ns.map((k,v) -> (repl_env.set(k, v))) -repl_env.set('eval, (ast) -> EVAL(ast, repl-env)) -repl_env.set('*ARGV*, cmdline_args[1..]) - -;; core.mal: defined using the language itself -rep("(def! not (fn* (a) (if a false true)))") -rep("(def! load-file (fn* (f) ...))") -rep("(defmacro! cond (fn* (& xs) ...))") -rep("(defmacro! or (fn* (& xs) ...))") - -if cmdline_args: rep("(load-file \"" + args[0] + "\")"); exit 0 - -main loop: - try: println(rep(readline("user> "))) - catch e: println("Error: ", e) - ---- env module ---------------------------------- -class Env (outer=null,binds=[],exprs=[]) - data = hash_map() - foreach b, i in binds: - if binds[i] == '&: data[binds[i+1]] = exprs.drop(i); break - else: data[binds[i]] = exprs[i] - set(k,v): return data.set(k,v) - find(k): return data.has(k) ? this : (if outer ? find(outer) : null) - get(k): return data.find(k).get(k) OR raise "'" + k + "' not found" - ---- core module --------------------------------- -ns = {'=: equal?, - 'nil?: nil?, - 'true?: true?, - 'false?: false?, - 'symbol?: symbol?, - - 'pr-str: (a) -> a.map(|s| pr_str(e,true)).join(" ")), - 'str: (a) -> a.map(|s| pr_str(e,false)).join("")), - 'prn: (a) -> println(a.map(|s| pr_str(e,true)).join(" ")), - 'println: (a) -> println(a.map(|s| pr_str(e,false)).join(" ")), - 'read-string: read_str, - 'slurp read-file, - - '<: lt, - '<=: lte, - '>: gt, - '>=: gte, - '+: add, - '-: sub, - '*: mult, - '/: div, - - 'list: list, - 'list?: list?, - 'hash-map: hash_map, - 'map?: hash_map?, - - 'cons: (a) -> concat([a[0]], a[1]), - 'concat: (a) -> reduce(concat, [], a), - 'nth: (a) -> a[0][a[1]] OR raise "nth: index out of range", - 'first: (a) -> a[0][0] OR nil, - 'rest: (a) -> a[0][1..] OR list(), - 'empty?: empty?, - 'count: count} diff --git a/docs/steps/step9_try.txt b/docs/steps/step9_try.txt deleted file mode 100644 index f0bb5c9..0000000 --- a/docs/steps/step9_try.txt +++ /dev/null @@ -1,109 +0,0 @@ ---- step9_try ----------------------------------- -import types, reader, printer, env, core - -READ(str): return reader.read_str(str) - -pair?(ast): return ... // true if non-empty sequence -quasiquote(ast): return ... // quasiquote - -macro?(ast, env): return ... // true if macro function -macroexpand(ast, env): return ... // recursive macro expansion - -eval_ast(ast,env): - switch type(ast): - symbol: return env.get(ast) - list,vector: return ast.map((x) -> EVAL(x,env)) - hash: return ast.map((k,v) -> list(k, EVAL(v,env))) - _default_: return ast - -EVAL(ast,env): - while true: - if not list?(ast): return eval_ast(ast, env) - switch ast[0]: - 'def!: return env.set(ast[1], EVAL(ast[2], env)) - 'let*: env = ...; ast = ast[2] // TCO - 'quote: return ast[1] - 'quasiquote: ast = quasiquote(ast[1]) // TCO - 'defmacro!: return ... // like def!, but set macro property - 'macroexpand: return macroexpand(ast[1], env) - 'try*: return ... // try/catch native and malval exceptions - 'do: ast = eval_ast(ast[1..-1], env)[-1] // TCO - 'if: EVAL(ast[1], env) ? ast = ast[2] : ast = ast[3] // TCO - 'fn*: return new MalFunc(...) - _default_: f, args = eval_ast(ast, env) - if malfunc?(ast[0]): ast = ast[0].fn; env = ... // TCO - else: return apply(f, args) - -PRINT(exp): return printer.pr_str(exp) - -repl_env = new Env() -rep(str): return PRINT(EVAL(READ(str),repl_env)) - -;; core.EXT: defined using Racket -core.ns.map((k,v) -> (repl_env.set(k, v))) -repl_env.set('eval, (ast) -> EVAL(ast, repl-env)) -repl_env.set('*ARGV*, cmdline_args[1..]) - -;; core.mal: defined using the language itself -rep("(def! not (fn* (a) (if a false true)))") -rep("(def! load-file (fn* (f) ...))") -rep("(defmacro! cond (fn* (& xs) ...))") -rep("(defmacro! or (fn* (& xs) ...))") - -if cmdline_args: rep("(load-file \"" + args[0] + "\")"); exit 0 - -main loop: - try: println(rep(readline("user> "))) - catch e: println("Error: ", e) - ---- env module ---------------------------------- -class Env (outer=null,binds=[],exprs=[]) - data = hash_map() - foreach b, i in binds: - if binds[i] == '&: data[binds[i+1]] = exprs.drop(i); break - else: data[binds[i]] = exprs[i] - set(k,v): return data.set(k,v) - find(k): return data.has(k) ? this : (if outer ? find(outer) : null) - get(k): return data.find(k).get(k) OR raise "'" + k + "' not found" - ---- core module --------------------------------- -ns = {'=: equal?, - 'throw: throw, - - 'nil?: nil?, - 'true?: true?, - 'false?: false?, - 'symbol: symbol, - 'symbol?: symbol?, - - 'pr-str: (a) -> a.map(|s| pr_str(e,true)).join(" ")), - 'str: (a) -> a.map(|s| pr_str(e,false)).join("")), - 'prn: (a) -> println(a.map(|s| pr_str(e,true)).join(" ")), - 'println: (a) -> println(a.map(|s| pr_str(e,false)).join(" ")), - 'read-string: read_str, - 'readline: readline, - 'slurp read-file, - - '<: lt, - '<=: lte, - '>: gt, - '>=: gte, - '+: add, - '-: sub, - '*: mult, - '/: div, - - 'list: list, - 'list?: list?, - 'hash-map: hash_map, - 'map?: hash_map?, - - 'cons: (a) -> concat([a[0]], a[1]), - 'concat: (a) -> reduce(concat, [], a), - 'nth: (a) -> a[0][a[1]] OR raise "nth: index out of range", - 'first: (a) -> a[0][0] OR nil, - 'rest: (a) -> a[0][1..] OR list(), - 'empty?: empty?, - 'count: count, - 'apply: apply, - 'map: map} diff --git a/docs/steps/stepA_interop.txt b/docs/steps/stepA_interop.txt deleted file mode 100644 index c909056..0000000 --- a/docs/steps/stepA_interop.txt +++ /dev/null @@ -1,112 +0,0 @@ ---- stepA_interop ------------------------------- -import types, reader, printer, env, core - -READ(str): return reader.read_str(str) - -pair?(ast): return ... // true if non-empty sequence -quasiquote(ast): return ... // quasiquote - -macro?(ast, env): return ... // true if macro function -macroexpand(ast, env): return ... // recursive macro expansion - -eval_ast(ast,env): - switch type(ast): - symbol: return env.get(ast) - list,vector: return ast.map((x) -> EVAL(x,env)) - hash: return ast.map((k,v) -> list(k, EVAL(v,env))) - _default_: return ast - -EVAL(ast,env): - while true: - if not list?(ast): return eval_ast(ast, env) - switch ast[0]: - 'def!: return env.set(ast[1], EVAL(ast[2], env)) - 'let*: env = ...; ast = ast[2] // TCO - 'quote: return ast[1] - 'quasiquote: ast = quasiquote(ast[1]) // TCO - 'defmacro!: return ... // like def!, but set macro property - 'macroexpand: return macroexpand(ast[1], env) - 'try*: return ... // try/catch native and malval exceptions - 'do: ast = eval_ast(ast[1..-1], env)[-1] // TCO - 'if: EVAL(ast[1], env) ? ast = ast[2] : ast = ast[3] // TCO - 'fn*: return new MalFunc(...) - _default_: f, args = eval_ast(ast, env) - if malfunc?(ast[0]): ast = ast[0].fn; env = ... // TCO - else: return apply(f, args) - -PRINT(exp): return printer.pr_str(exp) - -repl_env = new Env() -rep(str): return PRINT(EVAL(READ(str),repl_env)) - -;; core.EXT: defined using Racket -core.ns.map((k,v) -> (repl_env.set(k, v))) -repl_env.set('eval, (ast) -> EVAL(ast, repl-env)) -repl_env.set('*ARGV*, cmdline_args[1..]) - -;; core.mal: defined using the language itself -rep("(def! *host-language* \"racket\")") -rep("(def! not (fn* (a) (if a false true)))") -rep("(def! load-file (fn* (f) ...))") -rep("(defmacro! cond (fn* (& xs) ...))") -rep("(defmacro! or (fn* (& xs) ...))") - -if cmdline_args: rep("(load-file \"" + args[0] + "\")"); exit 0 - -rep("(println (str \"Mal [\" *host-language* \"]\"))") -main loop: - try: println(rep(readline("user> "))) - catch e: println("Error: ", e) - ---- env module ---------------------------------- -class Env (outer=null,binds=[],exprs=[]) - data = hash_map() - foreach b, i in binds: - if binds[i] == '&: data[binds[i+1]] = exprs.drop(i); break - else: data[binds[i]] = exprs[i] - set(k,v): return data.set(k,v) - find(k): return data.has(k) ? this : (if outer ? find(outer) : null) - get(k): return data.find(k).get(k) OR raise "'" + k + "' not found" - ---- core module --------------------------------- -ns = {'=: equal?, - 'throw: throw, - - 'nil?: nil?, - 'true?: true?, - 'false?: false?, - 'symbol: symbol, - 'symbol?: symbol?, - - 'pr-str: (a) -> a.map(|s| pr_str(e,true)).join(" ")), - 'str: (a) -> a.map(|s| pr_str(e,false)).join("")), - 'prn: (a) -> println(a.map(|s| pr_str(e,true)).join(" ")), - 'println: (a) -> println(a.map(|s| pr_str(e,false)).join(" ")), - 'read-string: read_str, - 'readline: readline, - 'slurp read-file, - - '<: lt, - '<=: lte, - '>: gt, - '>=: gte, - '+: add, - '-: sub, - '*: mult, - '/: div, - 'time-ms cur-epoch-millis, - - 'list: list, - 'list?: list?, - 'hash-map: hash_map, - 'map?: hash_map?, - - 'cons: (a) -> concat([a[0]], a[1]), - 'concat: (a) -> reduce(concat, [], a), - 'nth: (a) -> a[0][a[1]] OR raise "nth: index out of range", - 'first: (a) -> a[0][0] OR nil, - 'rest: (a) -> a[0][1..] OR list(), - 'empty?: empty?, - 'count: count, - 'apply: apply, - 'map: map} diff --git a/docs/steps/stepA_interop2.txt b/docs/steps/stepA_interop2.txt deleted file mode 100644 index 05dfe8c..0000000 --- a/docs/steps/stepA_interop2.txt +++ /dev/null @@ -1,131 +0,0 @@ ---- stepA_interop ------------------------------- -import types, reader, printer, env, core - -READ(str): return reader.read_str(str) - -pair?(ast): return ... // true if non-empty sequence -quasiquote(ast): return ... // quasiquote - -macro?(ast, env): return ... // true if macro function -macroexpand(ast, env): return ... // recursive macro expansion - -eval_ast(ast,env): - switch type(ast): - symbol: return env.get(ast) - list,vector: return ast.map((x) -> EVAL(x,env)) - hash: return ast.map((k,v) -> list(k, EVAL(v,env))) - _default_: return ast - -EVAL(ast,env): - while true: - if not list?(ast): return eval_ast(ast, env) - switch ast[0]: - 'def!: return env.set(ast[1], EVAL(ast[2], env)) - 'let*: env = ...; ast = ast[2] // TCO - 'quote: return ast[1] - 'quasiquote: ast = quasiquote(ast[1]) // TCO - 'defmacro!: return ... // like def!, but set macro property - 'macroexpand: return macroexpand(ast[1], env) - 'try*: return ... // try/catch native and malval exceptions - 'do: ast = eval_ast(ast[1..-1], env)[-1] // TCO - 'if: EVAL(ast[1], env) ? ast = ast[2] : ast = ast[3] // TCO - 'fn*: return new MalFunc(...) - _default_: f, args = eval_ast(ast, env) - if malfunc?(ast[0]): ast = ast[0].fn; env = ... // TCO - else: return apply(f, args) - -PRINT(exp): return printer.pr_str(exp) - -repl_env = new Env() -rep(str): return PRINT(EVAL(READ(str),repl_env)) - -;; core.EXT: defined using Racket -core.ns.map((k,v) -> (repl_env.set(k, v))) -repl_env.set('eval, (ast) -> EVAL(ast, repl-env)) -repl_env.set('*ARGV*, cmdline_args[1..]) - -;; core.mal: defined using the language itself -rep("(def! *host-language* \"racket\")") -rep("(def! not (fn* (a) (if a false true)))") -rep("(def! load-file (fn* (f) ...))") -rep("(defmacro! cond (fn* (& xs) ...))") -rep("(defmacro! or (fn* (& xs) ...))") - -if cmdline_args: rep("(load-file \"" + args[0] + "\")"); exit 0 - -rep("(println (str \"Mal [\" *host-language* \"]\"))") -main loop: - try: println(rep(readline("user> "))) - catch e: println("Error: ", e) - ---- env module ---------------------------------- -class Env (outer=null,binds=[],exprs=[]) - data = hash_map() - foreach b, i in binds: - if binds[i] == '&: data[binds[i+1]] = exprs.drop(i); break - else: data[binds[i]] = exprs[i] - set(k,v): return data.set(k,v) - find(k): return data.has(k) ? this : (if outer ? find(outer) : null) - get(k): return data.find(k).get(k) OR raise "'" + k + "' not found" - ---- core module --------------------------------- -ns = {'=: equal?, - 'throw: throw, - - 'nil?: nil?, - 'true?: true?, - 'false?: false?, - 'symbol: symbol, - 'symbol?: symbol?, - 'keyword: keyword, - 'keyword?: keyword?, - - 'pr-str: (a) -> a.map(|s| pr_str(e,true)).join(" ")), - 'str: (a) -> a.map(|s| pr_str(e,false)).join("")), - 'prn: (a) -> println(a.map(|s| pr_str(e,true)).join(" ")), - 'println: (a) -> println(a.map(|s| pr_str(e,false)).join(" ")), - 'read-string: read_str, - 'readline: readline, - 'slurp read-file, - - '<: lt, - '<=: lte, - '>: gt, - '>=: gte, - '+: add, - '-: sub, - '*: mult, - '/: div, - - 'list: list, - 'list?: list?, - 'vector: vector, - 'vector?: vector?, - 'hash-map: hash_map, - 'map?: hash_map?, - 'assoc: assoc, - 'dissoc: dissoc, - 'get: get, - 'contains?: contains?, - 'keys: keys, - 'vals: vals, - - 'sequential? sequential?, - 'cons: (a) -> concat([a[0]], a[1]), - 'concat: (a) -> reduce(concat, [], a), - 'nth: (a) -> a[0][a[1]] OR raise "nth: index out of range", - 'first: (a) -> a[0][0] OR nil, - 'rest: (a) -> a[0][1..] OR list(), - 'empty?: empty?, - 'count: count, - 'apply: apply, - 'map: map, - 'conj: conj, - - 'meta: (a) -> a[0].meta, - 'with-meta: (a) -> a[0].with_meta(a[1]), - 'atom: (a) -> new Atom(a[0]), - 'atom?: (a) -> type(a[0]) == "atom", - 'deref: (a) -> a[0].val, - 'reset!: (a) -> a[0].val = a[1], - 'swap!: swap!} diff --git a/template/step0_repl.txt b/template/step0_repl.txt new file mode 100644 index 0000000..db31e58 --- /dev/null +++ b/template/step0_repl.txt @@ -0,0 +1,11 @@ +--- step0_repl ---------------------------------- +READ(str): return str + +EVAL(ast,any): return ast + +PRINT(exp): return exp + +rep(str): return PRINT(EVAL(READ(str),"")) + +main loop: println(rep(readline("user> "))) + diff --git a/template/step1_read_print.txt b/template/step1_read_print.txt new file mode 100644 index 0000000..3a0fd7c --- /dev/null +++ b/template/step1_read_print.txt @@ -0,0 +1,14 @@ +--- step1_read_print ---------------------------- +import reader, printer + +READ(str): return reader.read_str(str) + +EVAL(ast,env): return ast + +PRINT(exp): return printer.pr_str(exp) + +rep(str): return PRINT(EVAL(READ(str),"")) + +main loop: + try: println(rep(readline("user> "))) + catch e: println("Error: ", e) diff --git a/template/step2_eval.txt b/template/step2_eval.txt new file mode 100644 index 0000000..beb5500 --- /dev/null +++ b/template/step2_eval.txt @@ -0,0 +1,25 @@ +--- step2_eval ---------------------------------- +import types, reader, printer + +READ(str): return reader.read_str(str) + +eval_ast(ast,env): + switch type(ast): + symbol: return lookup(env, ast) OR raise "'" + ast + "' not found" + list,vector: return ast.map((x) -> EVAL(x,env)) + hash: return ast.map((k,v) -> list(k, EVAL(v,env))) + _default_: return ast + +EVAL(ast,env): + if not list?(ast): return eval_ast(ast, env) + f, args = eval_ast(ast, env) + return apply(f, args) + +PRINT(exp): return printer.pr_str(exp) + +repl_env = {'+: add_fn, ...} +rep(str): return PRINT(EVAL(READ(str),repl_env)) + +main loop: + try: println(rep(readline("user> "))) + catch e: println("Error: ", e) diff --git a/template/step3_env.txt b/template/step3_env.txt new file mode 100644 index 0000000..a1de572 --- /dev/null +++ b/template/step3_env.txt @@ -0,0 +1,38 @@ +--- step3_env ----------------------------------- +import types, reader, printer, env + +READ(str): return reader.read_str(str) + +eval_ast(ast,env): + switch type(ast): + symbol: return env.get(ast) + list,vector: return ast.map((x) -> EVAL(x,env)) + hash: return ast.map((k,v) -> list(k, EVAL(v,env))) + _default_: return ast + +EVAL(ast,env): + if not list?(ast): return eval_ast(ast, env) + switch ast[0]: + 'def!: return env.set(ast[1], EVAL(ast[2], env)) + 'let*: return EVAL(ast[2], ...) + _default_: f, args = eval_ast(ast, env) + return apply(f, args) + +PRINT(exp): return printer.pr_str(exp) + +repl_env = new Env() +rep(str): return PRINT(EVAL(READ(str),repl_env)) + +repl_env.set('+, add_fn) + ... + +main loop: + try: println(rep(readline("user> "))) + catch e: println("Error: ", e) + +--- env module ---------------------------------- +class Env (outer=null) + data = hash_map() + set(k,v): return data.set(k,v) + find(k): return data.has(k) ? this : (if outer ? find(outer) : null) + get(k): return data.find(k).get(k) OR raise "'" + k + "' not found" diff --git a/template/step4_if_fn_do.txt b/template/step4_if_fn_do.txt new file mode 100644 index 0000000..d4dc4c5 --- /dev/null +++ b/template/step4_if_fn_do.txt @@ -0,0 +1,76 @@ +--- step4_if_fn_do ------------------------------ +import types, reader, printer, env, core + +READ(str): return reader.read_str(str) + +eval_ast(ast,env): + switch type(ast): + symbol: return env.get(ast) + list,vector: return ast.map((x) -> EVAL(x,env)) + hash: return ast.map((k,v) -> list(k, EVAL(v,env))) + _default_: return ast + +EVAL(ast,env): + if not list?(ast): return eval_ast(ast, env) + switch ast[0]: + 'def!: return env.set(ast[1], EVAL(ast[2], env)) + 'let*: return EVAL(ast[2], ...) + 'do: return eval_ast(rest(ast), env)[-1] + 'if: return EVAL(EVAL(ast[1], env) ? ast[2] : ast[3], env) + 'fn*: return (...a) -> EVAL(ast[2], new Env(env, ast[1], a)) + _default_: f, args = eval_ast(ast, env) + return apply(f, args) + +PRINT(exp): return printer.pr_str(exp) + +repl_env = new Env() +rep(str): return PRINT(EVAL(READ(str),repl_env)) + +;; core.EXT: defined using Racket +core.ns.map((k,v) -> (repl_env.set(k, v))) + +;; core.mal: defined using the language itself +rep("(def! not (fn* (a) (if a false true)))") + +main loop: + try: println(rep(readline("user> "))) + catch e: println("Error: ", e) + +--- env module ---------------------------------- +class Env (outer=null,binds=[],exprs=[]) + data = hash_map() + foreach b, i in binds: + if binds[i] == '&: data[binds[i+1]] = exprs.drop(i); break + else: data[binds[i]] = exprs[i] + set(k,v): return data.set(k,v) + find(k): return data.has(k) ? this : (if outer ? find(outer) : null) + get(k): return data.find(k).get(k) OR raise "'" + k + "' not found" + +--- core module --------------------------------- +ns = {'=: equal?, + 'nil?: nil?, + 'true?: true?, + 'false?: false?, + 'symbol?: symbol?, + + 'pr-str: (a) -> a.map(|s| pr_str(e,true)).join(" ")), + 'str: (a) -> a.map(|s| pr_str(e,false)).join("")), + 'prn: (a) -> println(a.map(|s| pr_str(e,true)).join(" ")), + 'println: (a) -> println(a.map(|s| pr_str(e,false)).join(" ")), + + '<: lt, + '<=: lte, + '>: gt, + '>=: gte, + '+: add, + '-: sub, + '*: mult, + '/: div, + + 'list: list, + 'list?: list?, + 'hash-map: hash_map, + 'map?: hash_map?, + + 'empty?: empty?, + 'count: count} diff --git a/template/step5_tco.txt b/template/step5_tco.txt new file mode 100644 index 0000000..7f77065 --- /dev/null +++ b/template/step5_tco.txt @@ -0,0 +1,78 @@ +--- step5_tco ----------------------------------- +import types, reader, printer, env, core + +READ(str): return reader.read_str(str) + +eval_ast(ast,env): + switch type(ast): + symbol: return env.get(ast) + list,vector: return ast.map((x) -> EVAL(x,env)) + hash: return ast.map((k,v) -> list(k, EVAL(v,env))) + _default_: return ast + +EVAL(ast,env): + while true: + if not list?(ast): return eval_ast(ast, env) + switch ast[0]: + 'def!: return env.set(ast[1], EVAL(ast[2], env)) + 'let*: env = ...; ast = ast[2] // TCO + 'do: ast = eval_ast(ast[1..-1], env)[-1] // TCO + 'if: EVAL(ast[1], env) ? ast = ast[2] : ast = ast[3] // TCO + 'fn*: return new MalFunc(...) + _default_: f, args = eval_ast(ast, env) + if malfunc?(ast[0]): ast = ast[0].fn; env = ... // TCO + else: return apply(f, args) + +PRINT(exp): return printer.pr_str(exp) + +repl_env = new Env() +rep(str): return PRINT(EVAL(READ(str),repl_env)) + +;; core.EXT: defined using Racket +core.ns.map((k,v) -> (repl_env.set(k, v))) + +;; core.mal: defined using the language itself +rep("(def! not (fn* (a) (if a false true)))") + +main loop: + try: println(rep(readline("user> "))) + catch e: println("Error: ", e) + +--- env module ---------------------------------- +class Env (outer=null,binds=[],exprs=[]) + data = hash_map() + foreach b, i in binds: + if binds[i] == '&: data[binds[i+1]] = exprs.drop(i); break + else: data[binds[i]] = exprs[i] + set(k,v): return data.set(k,v) + find(k): return data.has(k) ? this : (if outer ? find(outer) : null) + get(k): return data.find(k).get(k) OR raise "'" + k + "' not found" + +--- core module --------------------------------- +ns = {'=: equal?, + 'nil?: nil?, + 'true?: true?, + 'false?: false?, + 'symbol?: symbol?, + + 'pr-str: (a) -> a.map(|s| pr_str(e,true)).join(" ")), + 'str: (a) -> a.map(|s| pr_str(e,false)).join("")), + 'prn: (a) -> println(a.map(|s| pr_str(e,true)).join(" ")), + 'println: (a) -> println(a.map(|s| pr_str(e,false)).join(" ")), + + '<: lt, + '<=: lte, + '>: gt, + '>=: gte, + '+: add, + '-: sub, + '*: mult, + '/: div, + + 'list: list, + 'list?: list?, + 'hash-map: hash_map, + 'map?: hash_map?, + + 'empty?: empty?, + 'count: count} diff --git a/template/step6_file.txt b/template/step6_file.txt new file mode 100644 index 0000000..508f947 --- /dev/null +++ b/template/step6_file.txt @@ -0,0 +1,85 @@ +--- step6_file ---------------------------------- +import types, reader, printer, env, core + +READ(str): return reader.read_str(str) + +eval_ast(ast,env): + switch type(ast): + symbol: return env.get(ast) + list,vector: return ast.map((x) -> EVAL(x,env)) + hash: return ast.map((k,v) -> list(k, EVAL(v,env))) + _default_: return ast + +EVAL(ast,env): + while true: + if not list?(ast): return eval_ast(ast, env) + switch ast[0]: + 'def!: return env.set(ast[1], EVAL(ast[2], env)) + 'let*: env = ...; ast = ast[2] // TCO + 'do: ast = eval_ast(ast[1..-1], env)[-1] // TCO + 'if: EVAL(ast[1], env) ? ast = ast[2] : ast = ast[3] // TCO + 'fn*: return new MalFunc(...) + _default_: f, args = eval_ast(ast, env) + if malfunc?(ast[0]): ast = ast[0].fn; env = ... // TCO + else: return apply(f, args) + +PRINT(exp): return printer.pr_str(exp) + +repl_env = new Env() +rep(str): return PRINT(EVAL(READ(str),repl_env)) + +;; core.EXT: defined using Racket +core.ns.map((k,v) -> (repl_env.set(k, v))) +repl_env.set('eval, (ast) -> EVAL(ast, repl-env)) +repl_env.set('*ARGV*, cmdline_args[1..]) + +;; core.mal: defined using the language itself +rep("(def! not (fn* (a) (if a false true)))") +rep("(def! load-file (fn* (f) ...))") + +if cmdline_args: rep("(load-file \"" + args[0] + "\")"); exit 0 + +main loop: + try: println(rep(readline("user> "))) + catch e: println("Error: ", e) + +--- env module ---------------------------------- +class Env (outer=null,binds=[],exprs=[]) + data = hash_map() + foreach b, i in binds: + if binds[i] == '&: data[binds[i+1]] = exprs.drop(i); break + else: data[binds[i]] = exprs[i] + set(k,v): return data.set(k,v) + find(k): return data.has(k) ? this : (if outer ? find(outer) : null) + get(k): return data.find(k).get(k) OR raise "'" + k + "' not found" + +--- core module --------------------------------- +ns = {'=: equal?, + 'nil?: nil?, + 'true?: true?, + 'false?: false?, + 'symbol?: symbol?, + + 'pr-str: (a) -> a.map(|s| pr_str(e,true)).join(" ")), + 'str: (a) -> a.map(|s| pr_str(e,false)).join("")), + 'prn: (a) -> println(a.map(|s| pr_str(e,true)).join(" ")), + 'println: (a) -> println(a.map(|s| pr_str(e,false)).join(" ")), + 'read-string: read_str, + 'slurp read-file, + + '<: lt, + '<=: lte, + '>: gt, + '>=: gte, + '+: add, + '-: sub, + '*: mult, + '/: div, + + 'list: list, + 'list?: list?, + 'hash-map: hash_map, + 'map?: hash_map?, + + 'empty?: empty?, + 'count: count} diff --git a/template/step7_quote.txt b/template/step7_quote.txt new file mode 100644 index 0000000..1e74c84 --- /dev/null +++ b/template/step7_quote.txt @@ -0,0 +1,92 @@ +--- step7_quote --------------------------------- +import types, reader, printer, env, core + +READ(str): return reader.read_str(str) + +pair?(ast): return ... // true if non-empty sequence +quasiquote(ast): return ... // quasiquote + +eval_ast(ast,env): + switch type(ast): + symbol: return env.get(ast) + list,vector: return ast.map((x) -> EVAL(x,env)) + hash: return ast.map((k,v) -> list(k, EVAL(v,env))) + _default_: return ast + +EVAL(ast,env): + while true: + if not list?(ast): return eval_ast(ast, env) + switch ast[0]: + 'def!: return env.set(ast[1], EVAL(ast[2], env)) + 'let*: env = ...; ast = ast[2] // TCO + 'quote: return ast[1] + 'quasiquote: ast = quasiquote(ast[1]) // TCO + 'do: ast = eval_ast(ast[1..-1], env)[-1] // TCO + 'if: EVAL(ast[1], env) ? ast = ast[2] : ast = ast[3] // TCO + 'fn*: return new MalFunc(...) + _default_: f, args = eval_ast(ast, env) + if malfunc?(ast[0]): ast = ast[0].fn; env = ... // TCO + else: return apply(f, args) + +PRINT(exp): return printer.pr_str(exp) + +repl_env = new Env() +rep(str): return PRINT(EVAL(READ(str),repl_env)) + +;; core.EXT: defined using Racket +core.ns.map((k,v) -> (repl_env.set(k, v))) +repl_env.set('eval, (ast) -> EVAL(ast, repl-env)) +repl_env.set('*ARGV*, cmdline_args[1..]) + +;; core.mal: defined using the language itself +rep("(def! not (fn* (a) (if a false true)))") +rep("(def! load-file (fn* (f) ...))") + +if cmdline_args: rep("(load-file \"" + args[0] + "\")"); exit 0 + +main loop: + try: println(rep(readline("user> "))) + catch e: println("Error: ", e) + +--- env module ---------------------------------- +class Env (outer=null,binds=[],exprs=[]) + data = hash_map() + foreach b, i in binds: + if binds[i] == '&: data[binds[i+1]] = exprs.drop(i); break + else: data[binds[i]] = exprs[i] + set(k,v): return data.set(k,v) + find(k): return data.has(k) ? this : (if outer ? find(outer) : null) + get(k): return data.find(k).get(k) OR raise "'" + k + "' not found" + +--- core module --------------------------------- +ns = {'=: equal?, + 'nil?: nil?, + 'true?: true?, + 'false?: false?, + 'symbol?: symbol?, + + 'pr-str: (a) -> a.map(|s| pr_str(e,true)).join(" ")), + 'str: (a) -> a.map(|s| pr_str(e,false)).join("")), + 'prn: (a) -> println(a.map(|s| pr_str(e,true)).join(" ")), + 'println: (a) -> println(a.map(|s| pr_str(e,false)).join(" ")), + 'read-string: read_str, + 'slurp read-file, + + '<: lt, + '<=: lte, + '>: gt, + '>=: gte, + '+: add, + '-: sub, + '*: mult, + '/: div, + + 'list: list, + 'list?: list?, + 'hash-map: hash_map, + 'map?: hash_map?, + + 'cons: (a) -> concat([a[0]], a[1]), + 'concat: (a) -> reduce(concat, [], a), + 'empty?: empty?, + 'count: count} diff --git a/template/step8_macros.txt b/template/step8_macros.txt new file mode 100644 index 0000000..3dc74df --- /dev/null +++ b/template/step8_macros.txt @@ -0,0 +1,102 @@ +--- step8_macros -------------------------------- +import types, reader, printer, env, core + +READ(str): return reader.read_str(str) + +pair?(ast): return ... // true if non-empty sequence +quasiquote(ast): return ... // quasiquote + +macro?(ast, env): return ... // true if macro function +macroexpand(ast, env): return ... // recursive macro expansion + +eval_ast(ast,env): + switch type(ast): + symbol: return env.get(ast) + list,vector: return ast.map((x) -> EVAL(x,env)) + hash: return ast.map((k,v) -> list(k, EVAL(v,env))) + _default_: return ast + +EVAL(ast,env): + while true: + if not list?(ast): return eval_ast(ast, env) + switch ast[0]: + 'def!: return env.set(ast[1], EVAL(ast[2], env)) + 'let*: env = ...; ast = ast[2] // TCO + 'quote: return ast[1] + 'quasiquote: ast = quasiquote(ast[1]) // TCO + 'defmacro!: return ... // like def!, but set macro property + 'macroexpand: return macroexpand(ast[1], env) + 'do: ast = eval_ast(ast[1..-1], env)[-1] // TCO + 'if: EVAL(ast[1], env) ? ast = ast[2] : ast = ast[3] // TCO + 'fn*: return new MalFunc(...) + _default_: f, args = eval_ast(ast, env) + if malfunc?(ast[0]): ast = ast[0].fn; env = ... // TCO + else: return apply(f, args) + +PRINT(exp): return printer.pr_str(exp) + +repl_env = new Env() +rep(str): return PRINT(EVAL(READ(str),repl_env)) + +;; core.EXT: defined using Racket +core.ns.map((k,v) -> (repl_env.set(k, v))) +repl_env.set('eval, (ast) -> EVAL(ast, repl-env)) +repl_env.set('*ARGV*, cmdline_args[1..]) + +;; core.mal: defined using the language itself +rep("(def! not (fn* (a) (if a false true)))") +rep("(def! load-file (fn* (f) ...))") +rep("(defmacro! cond (fn* (& xs) ...))") +rep("(defmacro! or (fn* (& xs) ...))") + +if cmdline_args: rep("(load-file \"" + args[0] + "\")"); exit 0 + +main loop: + try: println(rep(readline("user> "))) + catch e: println("Error: ", e) + +--- env module ---------------------------------- +class Env (outer=null,binds=[],exprs=[]) + data = hash_map() + foreach b, i in binds: + if binds[i] == '&: data[binds[i+1]] = exprs.drop(i); break + else: data[binds[i]] = exprs[i] + set(k,v): return data.set(k,v) + find(k): return data.has(k) ? this : (if outer ? find(outer) : null) + get(k): return data.find(k).get(k) OR raise "'" + k + "' not found" + +--- core module --------------------------------- +ns = {'=: equal?, + 'nil?: nil?, + 'true?: true?, + 'false?: false?, + 'symbol?: symbol?, + + 'pr-str: (a) -> a.map(|s| pr_str(e,true)).join(" ")), + 'str: (a) -> a.map(|s| pr_str(e,false)).join("")), + 'prn: (a) -> println(a.map(|s| pr_str(e,true)).join(" ")), + 'println: (a) -> println(a.map(|s| pr_str(e,false)).join(" ")), + 'read-string: read_str, + 'slurp read-file, + + '<: lt, + '<=: lte, + '>: gt, + '>=: gte, + '+: add, + '-: sub, + '*: mult, + '/: div, + + 'list: list, + 'list?: list?, + 'hash-map: hash_map, + 'map?: hash_map?, + + 'cons: (a) -> concat([a[0]], a[1]), + 'concat: (a) -> reduce(concat, [], a), + 'nth: (a) -> a[0][a[1]] OR raise "nth: index out of range", + 'first: (a) -> a[0][0] OR nil, + 'rest: (a) -> a[0][1..] OR list(), + 'empty?: empty?, + 'count: count} diff --git a/template/step9_try.txt b/template/step9_try.txt new file mode 100644 index 0000000..ad0c3c7 --- /dev/null +++ b/template/step9_try.txt @@ -0,0 +1,109 @@ +--- step9_try ----------------------------------- +import types, reader, printer, env, core + +READ(str): return reader.read_str(str) + +pair?(ast): return ... // true if non-empty sequence +quasiquote(ast): return ... // quasiquote + +macro?(ast, env): return ... // true if macro function +macroexpand(ast, env): return ... // recursive macro expansion + +eval_ast(ast,env): + switch type(ast): + symbol: return env.get(ast) + list,vector: return ast.map((x) -> EVAL(x,env)) + hash: return ast.map((k,v) -> list(k, EVAL(v,env))) + _default_: return ast + +EVAL(ast,env): + while true: + if not list?(ast): return eval_ast(ast, env) + switch ast[0]: + 'def!: return env.set(ast[1], EVAL(ast[2], env)) + 'let*: env = ...; ast = ast[2] // TCO + 'quote: return ast[1] + 'quasiquote: ast = quasiquote(ast[1]) // TCO + 'defmacro!: return ... // like def!, but set macro property + 'macroexpand: return macroexpand(ast[1], env) + 'try*: return ... // try/catch native and malval exceptions + 'do: ast = eval_ast(ast[1..-1], env)[-1] // TCO + 'if: EVAL(ast[1], env) ? ast = ast[2] : ast = ast[3] // TCO + 'fn*: return new MalFunc(...) + _default_: f, args = eval_ast(ast, env) + if malfunc?(ast[0]): ast = ast[0].fn; env = ... // TCO + else: return apply(f, args) + +PRINT(exp): return printer.pr_str(exp) + +repl_env = new Env() +rep(str): return PRINT(EVAL(READ(str),repl_env)) + +;; core.EXT: defined using Racket +core.ns.map((k,v) -> (repl_env.set(k, v))) +repl_env.set('eval, (ast) -> EVAL(ast, repl-env)) +repl_env.set('*ARGV*, cmdline_args[1..]) + +;; core.mal: defined using the language itself +rep("(def! not (fn* (a) (if a false true)))") +rep("(def! load-file (fn* (f) ...))") +rep("(defmacro! cond (fn* (& xs) ...))") +rep("(defmacro! or (fn* (& xs) ...))") + +if cmdline_args: rep("(load-file \"" + args[0] + "\")"); exit 0 + +main loop: + try: println(rep(readline("user> "))) + catch e: println("Error: ", e) + +--- env module ---------------------------------- +class Env (outer=null,binds=[],exprs=[]) + data = hash_map() + foreach b, i in binds: + if binds[i] == '&: data[binds[i+1]] = exprs.drop(i); break + else: data[binds[i]] = exprs[i] + set(k,v): return data.set(k,v) + find(k): return data.has(k) ? this : (if outer ? find(outer) : null) + get(k): return data.find(k).get(k) OR raise "'" + k + "' not found" + +--- core module --------------------------------- +ns = {'=: equal?, + 'throw: throw, + + 'nil?: nil?, + 'true?: true?, + 'false?: false?, + 'symbol: symbol, + 'symbol?: symbol?, + + 'pr-str: (a) -> a.map(|s| pr_str(e,true)).join(" ")), + 'str: (a) -> a.map(|s| pr_str(e,false)).join("")), + 'prn: (a) -> println(a.map(|s| pr_str(e,true)).join(" ")), + 'println: (a) -> println(a.map(|s| pr_str(e,false)).join(" ")), + 'read-string: read_str, + 'readline: readline, + 'slurp read-file, + + '<: lt, + '<=: lte, + '>: gt, + '>=: gte, + '+: add, + '-: sub, + '*: mult, + '/: div, + + 'list: list, + 'list?: list?, + 'hash-map: hash_map, + 'map?: hash_map?, + + 'cons: (a) -> concat([a[0]], a[1]), + 'concat: (a) -> reduce(concat, [], a), + 'nth: (a) -> a[0][a[1]] OR raise "nth: index out of range", + 'first: (a) -> a[0][0] OR nil, + 'rest: (a) -> a[0][1..] OR list(), + 'empty?: empty?, + 'count: count, + 'apply: apply, + 'map: map} diff --git a/template/stepA_interop.txt b/template/stepA_interop.txt new file mode 100644 index 0000000..f66d227 --- /dev/null +++ b/template/stepA_interop.txt @@ -0,0 +1,112 @@ +--- stepA_interop ------------------------------- +import types, reader, printer, env, core + +READ(str): return reader.read_str(str) + +pair?(ast): return ... // true if non-empty sequence +quasiquote(ast): return ... // quasiquote + +macro?(ast, env): return ... // true if macro function +macroexpand(ast, env): return ... // recursive macro expansion + +eval_ast(ast,env): + switch type(ast): + symbol: return env.get(ast) + list,vector: return ast.map((x) -> EVAL(x,env)) + hash: return ast.map((k,v) -> list(k, EVAL(v,env))) + _default_: return ast + +EVAL(ast,env): + while true: + if not list?(ast): return eval_ast(ast, env) + switch ast[0]: + 'def!: return env.set(ast[1], EVAL(ast[2], env)) + 'let*: env = ...; ast = ast[2] // TCO + 'quote: return ast[1] + 'quasiquote: ast = quasiquote(ast[1]) // TCO + 'defmacro!: return ... // like def!, but set macro property + 'macroexpand: return macroexpand(ast[1], env) + 'try*: return ... // try/catch native and malval exceptions + 'do: ast = eval_ast(ast[1..-1], env)[-1] // TCO + 'if: EVAL(ast[1], env) ? ast = ast[2] : ast = ast[3] // TCO + 'fn*: return new MalFunc(...) + _default_: f, args = eval_ast(ast, env) + if malfunc?(ast[0]): ast = ast[0].fn; env = ... // TCO + else: return apply(f, args) + +PRINT(exp): return printer.pr_str(exp) + +repl_env = new Env() +rep(str): return PRINT(EVAL(READ(str),repl_env)) + +;; core.EXT: defined using Racket +core.ns.map((k,v) -> (repl_env.set(k, v))) +repl_env.set('eval, (ast) -> EVAL(ast, repl-env)) +repl_env.set('*ARGV*, cmdline_args[1..]) + +;; core.mal: defined using the language itself +rep("(def! *host-language* \"racket\")") +rep("(def! not (fn* (a) (if a false true)))") +rep("(def! load-file (fn* (f) ...))") +rep("(defmacro! cond (fn* (& xs) ...))") +rep("(defmacro! or (fn* (& xs) ...))") + +if cmdline_args: rep("(load-file \"" + args[0] + "\")"); exit 0 + +rep("(println (str \"Mal [\" *host-language* \"]\"))") +main loop: + try: println(rep(readline("user> "))) + catch e: println("Error: ", e) + +--- env module ---------------------------------- +class Env (outer=null,binds=[],exprs=[]) + data = hash_map() + foreach b, i in binds: + if binds[i] == '&: data[binds[i+1]] = exprs.drop(i); break + else: data[binds[i]] = exprs[i] + set(k,v): return data.set(k,v) + find(k): return data.has(k) ? this : (if outer ? find(outer) : null) + get(k): return data.find(k).get(k) OR raise "'" + k + "' not found" + +--- core module --------------------------------- +ns = {'=: equal?, + 'throw: throw, + + 'nil?: nil?, + 'true?: true?, + 'false?: false?, + 'symbol: symbol, + 'symbol?: symbol?, + + 'pr-str: (a) -> a.map(|s| pr_str(e,true)).join(" ")), + 'str: (a) -> a.map(|s| pr_str(e,false)).join("")), + 'prn: (a) -> println(a.map(|s| pr_str(e,true)).join(" ")), + 'println: (a) -> println(a.map(|s| pr_str(e,false)).join(" ")), + 'read-string: read_str, + 'readline: readline, + 'slurp read-file, + + '<: lt, + '<=: lte, + '>: gt, + '>=: gte, + '+: add, + '-: sub, + '*: mult, + '/: div, + 'time-ms cur-epoch-millis, + + 'list: list, + 'list?: list?, + 'hash-map: hash_map, + 'map?: hash_map?, + + 'cons: (a) -> concat([a[0]], a[1]), + 'concat: (a) -> reduce(concat, [], a), + 'nth: (a) -> a[0][a[1]] OR raise "nth: index out of range", + 'first: (a) -> a[0][0] OR nil, + 'rest: (a) -> a[0][1..] OR list(), + 'empty?: empty?, + 'count: count, + 'apply: apply, + 'map: map} diff --git a/template/stepA_interop2.txt b/template/stepA_interop2.txt new file mode 100644 index 0000000..71e92ac --- /dev/null +++ b/template/stepA_interop2.txt @@ -0,0 +1,131 @@ +--- stepA_interop ------------------------------- +import types, reader, printer, env, core + +READ(str): return reader.read_str(str) + +pair?(ast): return ... // true if non-empty sequence +quasiquote(ast): return ... // quasiquote + +macro?(ast, env): return ... // true if macro function +macroexpand(ast, env): return ... // recursive macro expansion + +eval_ast(ast,env): + switch type(ast): + symbol: return env.get(ast) + list,vector: return ast.map((x) -> EVAL(x,env)) + hash: return ast.map((k,v) -> list(k, EVAL(v,env))) + _default_: return ast + +EVAL(ast,env): + while true: + if not list?(ast): return eval_ast(ast, env) + switch ast[0]: + 'def!: return env.set(ast[1], EVAL(ast[2], env)) + 'let*: env = ...; ast = ast[2] // TCO + 'quote: return ast[1] + 'quasiquote: ast = quasiquote(ast[1]) // TCO + 'defmacro!: return ... // like def!, but set macro property + 'macroexpand: return macroexpand(ast[1], env) + 'try*: return ... // try/catch native and malval exceptions + 'do: ast = eval_ast(ast[1..-1], env)[-1] // TCO + 'if: EVAL(ast[1], env) ? ast = ast[2] : ast = ast[3] // TCO + 'fn*: return new MalFunc(...) + _default_: f, args = eval_ast(ast, env) + if malfunc?(ast[0]): ast = ast[0].fn; env = ... // TCO + else: return apply(f, args) + +PRINT(exp): return printer.pr_str(exp) + +repl_env = new Env() +rep(str): return PRINT(EVAL(READ(str),repl_env)) + +;; core.EXT: defined using Racket +core.ns.map((k,v) -> (repl_env.set(k, v))) +repl_env.set('eval, (ast) -> EVAL(ast, repl-env)) +repl_env.set('*ARGV*, cmdline_args[1..]) + +;; core.mal: defined using the language itself +rep("(def! *host-language* \"racket\")") +rep("(def! not (fn* (a) (if a false true)))") +rep("(def! load-file (fn* (f) ...))") +rep("(defmacro! cond (fn* (& xs) ...))") +rep("(defmacro! or (fn* (& xs) ...))") + +if cmdline_args: rep("(load-file \"" + args[0] + "\")"); exit 0 + +rep("(println (str \"Mal [\" *host-language* \"]\"))") +main loop: + try: println(rep(readline("user> "))) + catch e: println("Error: ", e) + +--- env module ---------------------------------- +class Env (outer=null,binds=[],exprs=[]) + data = hash_map() + foreach b, i in binds: + if binds[i] == '&: data[binds[i+1]] = exprs.drop(i); break + else: data[binds[i]] = exprs[i] + set(k,v): return data.set(k,v) + find(k): return data.has(k) ? this : (if outer ? find(outer) : null) + get(k): return data.find(k).get(k) OR raise "'" + k + "' not found" + +--- core module --------------------------------- +ns = {'=: equal?, + 'throw: throw, + + 'nil?: nil?, + 'true?: true?, + 'false?: false?, + 'symbol: symbol, + 'symbol?: symbol?, + 'keyword: keyword, + 'keyword?: keyword?, + + 'pr-str: (a) -> a.map(|s| pr_str(e,true)).join(" ")), + 'str: (a) -> a.map(|s| pr_str(e,false)).join("")), + 'prn: (a) -> println(a.map(|s| pr_str(e,true)).join(" ")), + 'println: (a) -> println(a.map(|s| pr_str(e,false)).join(" ")), + 'read-string: read_str, + 'readline: readline, + 'slurp read-file, + + '<: lt, + '<=: lte, + '>: gt, + '>=: gte, + '+: add, + '-: sub, + '*: mult, + '/: div, + + 'list: list, + 'list?: list?, + 'vector: vector, + 'vector?: vector?, + 'hash-map: hash_map, + 'map?: hash_map?, + 'assoc: assoc, + 'dissoc: dissoc, + 'get: get, + 'contains?: contains?, + 'keys: keys, + 'vals: vals, + + 'sequential? sequential?, + 'cons: (a) -> concat([a[0]], a[1]), + 'concat: (a) -> reduce(concat, [], a), + 'nth: (a) -> a[0][a[1]] OR raise "nth: index out of range", + 'first: (a) -> a[0][0] OR nil, + 'rest: (a) -> a[0][1..] OR list(), + 'empty?: empty?, + 'count: count, + 'apply: apply, + 'map: map, + 'conj: conj, + + 'meta: (a) -> a[0].meta, + 'with-meta: (a) -> a[0].with_meta(a[1]), + 'atom: (a) -> new Atom(a[0]), + 'atom?: (a) -> type(a[0]) == "atom", + 'deref: (a) -> a[0].val, + 'reset!: (a) -> a[0].val = a[1], + 'swap!: swap!} -- cgit v1.2.3