JavaScript RegExp Engine Compatibility References

Compatibility reference of all built-in grammars with the JavaScript RegExp engine.

Genreated on Monday, October 28, 2024
Version 1.22.2
Runtime: Node.js v20.18.0

Report Summary

	Count
Total Languages	214
Supported	176
Mismatched	23
Unsupported	15

Supported Languages

Languages that works with the JavaScript RegExp engine, and will produce the same result as the WASM engine (with the sample snippets in the registry). In some edge cases, it's not guaranteed that the the highlight will be 100% the same. If that happens, please create an issue with the sample snippet.

Language	Highlight Match	Patterns Parsable	Patterns Failed
abap	✅ OK	51	-
actionscript-3	✅ OK	57	-
angular-ts	✅ OK	779	-
apache	✅ OK	60	-
apl	✅ OK	917	-
applescript	✅ OK	152	-
ara	✅ OK	54	-
asciidoc	✅ OK	262	-
asm	✅ OK	297	-
astro	✅ OK	613	-
awk	✅ OK	36	-
ballerina	✅ OK	230	-
bat	✅ OK	58	-
berry	✅ OK	18	-
bibtex	✅ OK	19	-
bicep	✅ OK	27	-
cadence	✅ OK	71	-
clarity	✅ OK	43	-
clj	✅ OK	38	-
clojure	✅ OK	38	-
cmake	✅ OK	23	-
cobol	✅ OK	864	-
codeowners	✅ OK	4	-
codeql	✅ OK	151	-
coffee	✅ OK	469	-
common-lisp	✅ OK	60	-
coq	✅ OK	25	-
css	✅ OK	141	-
csv	✅ OK	1	-
cue	✅ OK	85	-
cypher	✅ OK	39	-
d	✅ OK	270	-
dart	✅ OK	72	-
dax	✅ OK	23	-
desktop	✅ OK	16	-
diff	✅ OK	16	-
docker	✅ OK	7	-
dotenv	✅ OK	9	-
dream-maker	✅ OK	56	-
edge	✅ OK	632	-
elm	✅ OK	244	-
emacs-lisp	✅ OK	153	-
erb	✅ OK	1312	-
fennel	✅ OK	31	-
fish	✅ OK	25	-
fluent	✅ OK	23	-
fortran-fixed-form	✅ OK	332	-
fortran-free-form	✅ OK	328	-
fsharp	✅ OK	239	-
fsl	✅ OK	30	-
gdresource	✅ OK	157	-
gdscript	✅ OK	93	-
gdshader	✅ OK	39	-
genie	✅ OK	20	-
gherkin	✅ OK	19	-
gleam	✅ OK	26	-
glimmer-js	✅ OK	676	-
glimmer-ts	✅ OK	676	-
gnuplot	✅ OK	82	-
go	✅ OK	123	-
graphql	✅ OK	448	-
groovy	✅ OK	133	-
hack	✅ OK	948	-
haml	✅ OK	562	-
handlebars	✅ OK	699	-
haxe	✅ OK	174	-
hcl	✅ OK	67	-
hjson	✅ OK	57	-
hlsl	✅ OK	52	-
html	✅ OK	611	-
http	✅ OK	753	-
hxml	✅ OK	182	-
hy	✅ OK	12	-
imba	✅ OK	516	-
ini	✅ OK	11	-
java	✅ OK	142	-
javascript	✅ OK	376	-
jinja	✅ OK	642	-
jison	✅ OK	421	-
json	✅ OK	19	-
json5	✅ OK	23	-
jsonc	✅ OK	19	-
jsonl	✅ OK	19	-
jsonnet	✅ OK	33	-
jssm	✅ OK	30	-
jsx	✅ OK	376	-
lean	✅ OK	32	-
less	✅ OK	280	-
liquid	✅ OK	684	-
log	✅ OK	30	-
logo	✅ OK	9	-
lua	✅ OK	278	-
luau	✅ OK	88	-
make	✅ OK	51	-
marko	✅ OK	926	-
matlab	✅ OK	88	-
mdc	✅ OK	784	-
mipsasm	✅ OK	17	-
mojo	✅ OK	213	-
move	✅ OK	120	-
narrat	✅ OK	34	-
nextflow	✅ OK	17	-
nim	✅ OK	1126	-
nix	✅ OK	80	-
nushell	✅ OK	81	-
objective-c	✅ OK	223	-
ocaml	✅ OK	178	-
pascal	✅ OK	23	-
perl	✅ OK	941	-
plsql	✅ OK	45	-
postcss	✅ OK	49	-
powerquery	✅ OK	30	-
prisma	✅ OK	26	-
prolog	✅ OK	26	-
proto	✅ OK	33	-
puppet	✅ OK	61	-
python	✅ OK	218	-
qml	✅ OK	408	-
qmldir	✅ OK	7	-
qss	✅ OK	31	-
r	✅ OK	71	-
racket	✅ OK	69	-
raku	✅ OK	52	-
reg	✅ OK	9	-
regexp	✅ OK	34	-
rel	✅ OK	17	-
riscv	✅ OK	36	-
rust	✅ OK	89	-
sas	✅ OK	101	-
sass	✅ OK	69	-
scala	✅ OK	117	-
scheme	✅ OK	34	-
scss	✅ OK	234	-
shaderlab	✅ OK	87	-
shellsession	✅ OK	150	-
solidity	✅ OK	102	-
soy	✅ OK	649	-
sparql	✅ OK	19	-
sql	✅ OK	67	-
ssh-config	✅ OK	12	-
stylus	✅ OK	107	-
svelte	✅ OK	636	-
system-verilog	✅ OK	102	-
systemd	✅ OK	32	-
tasl	✅ OK	23	-
tcl	✅ OK	34	-
templ	✅ OK	673	-
terraform	✅ OK	68	-
tex	✅ OK	106	-
toml	✅ OK	44	-
ts-tags	✅ OK	997	-
tsv	✅ OK	1	-
tsx	✅ OK	376	-
turtle	✅ OK	15	-
twig	✅ OK	1984	-
typescript	✅ OK	363	-
typespec	✅ OK	80	-
typst	✅ OK	78	-
v	✅ OK	80	-
vala	✅ OK	20	-
vb	✅ OK	34	-
verilog	✅ OK	33	-
vhdl	✅ OK	82	-
viml	✅ OK	72	-
vue	✅ OK	692	-
vue-html	✅ OK	716	-
vyper	✅ OK	238	-
wasm	✅ OK	78	-
wenyan	✅ OK	18	-
wgsl	✅ OK	44	-
wikitext	✅ OK	104	-
xml	✅ OK	169	-
xsl	✅ OK	171	-
yaml	✅ OK	48	-
zenscript	✅ OK	21	-
zig	✅ OK	51	-

Table Field Explanations

Highlight Match: Highlight results match with the WASM engine with the sample snippets.
Patterns Parsable: Number of regex patterns that can be parsed by the JavaScript RegExp engine.
Patterns Failed: Number of regex patterns that can't be parsed by the JavaScript RegExp engine (throws error).
Diff: Length of characters that are different between the highlight result of two engines.

Mismatched Languages

Languages that does not throw with the JavaScript RegExp engine, but will produce different result than the WASM engine. Please use with caution.

Language	Highlight Match	Patterns Parsable	Patterns Failed	Diff
angular-html	🚧 Mismatch	670	-	330
bash	🚧 Mismatch	148	-	56
beancount	🚧 Mismatch	39	-	171
c	🚧 Mismatch	177	-	209
crystal	🚧 Mismatch	1067	-	40
elixir	🚧 Mismatch	708	-	179
erlang	🚧 Mismatch	147	-	470
glsl	🚧 Mismatch	186	-	306
kusto	🚧 Mismatch	60	-	40
latex	🚧 Mismatch	283	-	25
markdown	🚧 Mismatch	118	-	78
mermaid	🚧 Mismatch	129	-	38
nginx	🚧 Mismatch	378	-	4
objective-cpp	🚧 Mismatch	309	-	172
php	🚧 Mismatch	1131	-	605
po	🚧 Mismatch	23	-	336
pug	🚧 Mismatch	686	-	164
ruby	🚧 Mismatch	1307	-	1
shellscript	🚧 Mismatch	148	-	56
smalltalk	🚧 Mismatch	35	-	40
splunk	🚧 Mismatch	17	-	8
stata	🚧 Mismatch	253	-	32
zsh	🚧 Mismatch	148	-	117

Unsupported Languages

Languages that throws with the JavaScript RegExp engine (contains syntaxes that we can't polyfill yet). If you need to use these languages, please use the Oniguruma engine.

Language	Highlight Match	Patterns Parsable	Patterns Failed	Diff
ada	✅ OK	201	1
blade	🚧 Mismatch	1124	2
rst	🚧 Mismatch	1835	22	62
powershell	❌ Error	87	1
wolfram	❌ Error	500	1	12
mdx	❌ Error	193	4
swift	❌ Error	325	4	18
kotlin	❌ Error	52	6	2986
purescript	❌ Error	67	6	1488
apex	❌ Error	173	14	242
haskell	❌ Error	136	21	12
cpp	❌ Error	490	22	25
julia	❌ Error	1141	27	49
csharp	❌ Error	276	33	232
razor	❌ Error	922	35	26

JavaScript RegExp Engine Compatibility References ​

Report Summary ​

Supported Languages ​

Table Field Explanations ​

Mismatched Languages ​