Scheme based powerful lisp interpreter in JavaScript
get-environment-variables and get-environment-variable returns nil and undefined in the browsertrue, false, and NaN are no longer parser constants #292
eval use interaction-environment stead of current-environment by defaultread #327
null falsy value #330
nil parser constant #332
undefined with #void, and null with #null
take
(type #void) (JavaScript undefined) is now void
vector-for-each and vector-copy! function from R7RSstring-for-each, string-downcase, and string-upcase from R7RStypecheck-number functionchar-foldcase and string-foldcase functionslist-set! and nth-pair functionsSRFI-61, SRFI-139, and SRFI-210
continuations? functioniterator->array functionchar<...>? and string<...>? functions #298
log to accept two arguments #301
data-bootstrap attribute on script tagsatan work for complex numbers+inf.0 and -inf.0 parser constantszip procedure (inspired by Lodash)with-input-from-string and read-all #327
#!fold-case and #!no-fold-case directives #342
drop procedure--> to get the functionregex procedure (rename from %r used in bootstrap.scm)let-values to allow binding to list #281
string-fill!
string-set! to mutate the string and work on any expressionsyntax-rules in macro define-value #290
let-values
syntax-rules
procedure? to return true for continuationslips --help screencond-expand to skip not-matched symbolssyntax-rules identifiers with let #291
cond from --> macro so you can use use --> inside cond
flatten syntax-rules macro #304
(read) in the Web REPLnpm install #305
syntax-rules
repr of delay expressions #315
try..catch #317
^ and $ syntax extension #318
let*-values #322
do macro #324
string->number that leads to NaN #326
iterator->array #328
replace with async lambda #319
values without arguments #331
(expt +i +i)
inexact->exact procedure #340
repr of cycles#f or #t #343
curry)lips.exec into an objectguard macroparameterize and make-parameter
shuffle function(scheme-report-environment 7)
equal? #270
equal? on records #273
lips.set_fs function #256
number->string for binary numberslist->array
scheme-report-environment #268
integer? works for normal native numbers(1 . 2 3) #245
syntax-rules #243
try..catch #163
with-input-from-string function--> macro #200
performance.timeOrigin on Node 12 #207
get-script with get-resource that work in Node and in browser and allows to load CSSobject->alist, command-line, and symbol-append proceduresget-environment-variable and get-environment-variables
set-global! macrocurrent-second, current-jiffy, and jiffies-per-second procedures** operator when JS support exponential operatorstring-join and string-split
=> syntax to cond macro (as per R7RS)undefined parser constantlog of complex, rational, and negative numbersflush-output functionsyntax-rules
repr of object that have space in keystring->symbol and symbol->string
parent.frame inside Intepreter
eval without envlips.LComplex.prototype.modulus)repr of native type prototypes (e.g. LComplex)(object :foo Number.prototype))sqrt of rational where numerator or denominator is floatsqrt of negative real that are like integers #175
length of nilEnv::set
repr of symbols with impossible characters created with string->symbol
eqv? on same pairsabs on inexact numbers that can be represented as integers #181
zip function that just (map list l1 l2 ...)
raise now throws object as is (just like JS throw keyword)error now throws LipsError exception as per R7RSset-repr! on records (record type name is now a class)#f instead of nil when fail to match (so it work in cond or if)complement, always, once, flip, unfold (inspired by Ramda)exp on complex numberserror-object?, error-object-message and error-object-irritants
NaN, null and undefined parser constantsdefine-class
set-repr! on classesbegin) #153
set-obj!
case macro (use implementation from R7RS Errata)define-class
define-class
env and dir now returns symbols instead of stringsrepr and type of quoted promises now return #<promise> and promise
list-copy
define-record-type
escape-regex functionapropos accept symbol as argument**interaction-environment** and **internal-env**
letrec* that in LIPS is exactly the same as letrec
pragma->sxml macro that define sxml macro (default is h)fs in internal envfs with BrowserFS if existspprint in both REPLs now print in color #33
nan?, infinite? and finite? functions+nan.0 and -nan.0 (R7RS)environment? functioncurrent-directory and set-... from SRFI-170#:foo)let
apropos
real-part functioneqv? on exact and inexact numbers according to R7RS specexact->inexact on complex numbers#/( \\/)/g)#/\/[^/]+$/)(/ n) == (/ 1 n))list-ref according to R7RS erratalet*
#/foo/
quoted-promise, syntax '> #54
await that return original promise from QuotedPromiseeof variable to global envapropos functionlist* macroscheme-report-environment function (R5RS)** to work on negative numbersequal? on typed arraysget-output-string function)eval builtin function to evaluate everything