jolt/test/spec/reader-syntax-spec.janet
Yogthos 858c7fed14 docs: bring EBNF grammar and project docs up to date
- grammar.ebnf: rewrite the number rule to cover the literal syntaxes the reader
  now accepts — 0x/0X hex, N (bigint) / M (bigdec) suffixes, ratios a/b, radixed
  integers (NrXXX, base 2..36), exponents, and the ##Inf/##-Inf/##NaN symbolic
  floats — noting Jolt reads them as plain Janet numbers.
- README: Numbers bullet notes the literal syntaxes read; conformance count.
- reader-syntax-spec: drop the stale 'ratio not supported' case; add coverage
  for hex-uppercase/N/M/ratio/radix/exponent/##Inf/##NaN.
- PLAN.md: refresh the stale Current State snapshot for the 3-layer test
  structure (spec/integration/unit), ~3,920 suite assertions, 218/218
  conformance, current source size.

jpm test green.
2026-06-05 14:40:47 -04:00

48 lines
2.2 KiB
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# Specification: reader syntax & literals.
(use ../support/harness)
(defspec "reader / scalar literals"
["integer" "42" "42"]
["negative" "-7" "-7"]
["float" "1.5" "1.5"]
["string" "\"hi\"" "\"hi\""]
["boolean true" "true" "true"]
["nil" "nil" "nil"]
["keyword" ":a" ":a"]
["namespaced keyword" "true" "(= :a/b :a/b)"]
["char" "\\a" "\\a"]
["char newline" "true" "(= \\newline (first \"\\n\"))"]
["hex literal" "255" "0xff"]
["hex uppercase" "31" "0X1F"]
["bigint suffix N" "42" "42N"]
["bigdec suffix M" "1.5" "1.5M"]
["ratio -> double" "0.75" "3/4"]
["radix integer" "255" "16rFF"]
["exponent" "1500.0" "1.5e3"]
["symbolic Infinity" "true" "(infinite? ##Inf)"]
["symbolic NaN" "true" "(NaN? ##NaN)"]
["symbol via quote" "'foo" "'foo"])
(defspec "reader / collection literals"
["vector" "[1 2 3]" "[1 2 3]"]
["list quoted" "[1 2 3]" "'(1 2 3)"]
["map" "{:a 1}" "{:a 1}"]
["set" "#{1 2 3}" "#{1 2 3}"]
["nested" "{:a [1 {:b 2}]}" "{:a [1 {:b 2}]}"]
["empty vector" "[]" "[]"]
["empty map" "{}" "{}"]
["empty set" "#{}" "#{}"])
(defspec "reader / dispatch & sugar"
["anon fn #()" "3" "(#(+ %1 %2) 1 2)"]
["anon fn single %" "2" "(#(inc %) 1)"]
["anon fn %&" "[2 3]" "(#(vec %&) 2 3)"]
["discard #_" "[1 3]" "[1 #_2 3]"]
["regex literal" "true" "(= \"abc\" (re-find #\"abc\" \"xabcx\"))"]
["reader conditional" "1" "#?(:clj 1 :cljs 2 :default 3)"]
["reader cond splice" "[1 2 3]" "[#?@(:clj [1 2 3] :cljs [4 5])]"]
["inst literal reads" "true" "(some? #inst \"2020-01-01T00:00:00Z\")"]
["uuid literal" "\"550e8400-e29b-41d4-a716-446655440000\"" "(str #uuid \"550e8400-e29b-41d4-a716-446655440000\")"]
["tagged literal var" "true" "(var? #'+)"]
["deref sugar" "5" "(let [a (atom 5)] @a)"]
["meta sugar" "{:t 1}" "(meta ^{:t 1} [])"])