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gitea-tea/vendor/github.com/alecthomas/chroma/lexers/r/raku.go

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Update Dependencies (#390) Co-authored-by: Norwin Roosen <git@nroo.de> Co-authored-by: Norwin <git@nroo.de> Reviewed-on: https://gitea.com/gitea/tea/pulls/390 Reviewed-by: 6543 <6543@obermui.de> Reviewed-by: Andrew Thornton <art27@cantab.net> Co-authored-by: Norwin <noerw@noreply.gitea.io> Co-committed-by: Norwin <noerw@noreply.gitea.io>
2021-08-30 17:18:50 +02:00
package r
import (
"regexp"
"strings"
"unicode/utf8"
. "github.com/alecthomas/chroma" // nolint
"github.com/alecthomas/chroma/lexers/internal"
"github.com/dlclark/regexp2"
)
// Raku lexer.
var Raku Lexer = internal.Register(MustNewLazyLexer(
&Config{
Name: "Raku",
Aliases: []string{"perl6", "pl6", "raku"},
Filenames: []string{
"*.pl", "*.pm", "*.nqp", "*.p6", "*.6pl", "*.p6l", "*.pl6", "*.6pm",
"*.p6m", "*.pm6", "*.t", "*.raku", "*.rakumod", "*.rakutest", "*.rakudoc",
},
MimeTypes: []string{
"text/x-perl6", "application/x-perl6",
"text/x-raku", "application/x-raku",
},
DotAll: true,
},
rakuRules,
))
func rakuRules() Rules {
type RakuToken int
const (
rakuQuote RakuToken = iota
rakuName
rakuNameAttribute
rakuPod
rakuPodFormatter
rakuPodDeclaration
rakuMultilineComment
rakuSlashRegex
rakuMatchRegex
rakuSubstitutionRegex
rakuSubstitutionSingleRegex
rakuRegexInsideToken
)
const (
colonPairOpeningBrackets = `(?:<<|<|«|\(|\[|\{)`
colonPairClosingBrackets = `(?:>>|>|»|\)|\]|\})`
colonPairPattern = `(?<colon>:)(?<key>\w[\w'-]*)(?<opening_delimiters>` + colonPairOpeningBrackets + `)`
namePattern = `((?:(?!` + colonPairPattern + `)[\w':-])+)`
variablePattern = `[$@%&]+[.^:?=!~]?` + namePattern
globalVariablePattern = `[$@%&]+\*` + namePattern
)
keywords := []string{
`BEGIN`, `CATCH`, `CHECK`, `CLOSE`, `CONTROL`, `DOC`, `END`, `ENTER`, `FIRST`, `INIT`,
`KEEP`, `LAST`, `LEAVE`, `NEXT`, `POST`, `PRE`, `QUIT`, `UNDO`, `anon`, `augment`, `but`,
`class`, `constant`, `default`, `does`, `else`, `elsif`, `enum`, `for`, `gather`, `given`,
`grammar`, `has`, `if`, `import`, `is`, `of`, `let`, `loop`, `made`, `make`, `method`,
`module`, `multi`, `my`, `need`, `orwith`, `our`, `proceed`, `proto`, `repeat`, `require`,
`where`, `return`, `return-rw`, `returns`, `->`, `-->`, `role`, `state`, `sub`, `no`,
`submethod`, `subset`, `succeed`, `supersede`, `try`, `unit`, `unless`, `until`,
`use`, `when`, `while`, `with`, `without`, `export`, `native`, `repr`, `required`, `rw`,
`symbol`, `default`, `cached`, `DEPRECATED`, `dynamic`, `hidden-from-backtrace`, `nodal`,
`pure`, `raw`, `start`, `react`, `supply`, `whenever`, `also`, `rule`, `token`, `regex`,
`dynamic-scope`, `built`, `temp`,
}
keywordsPattern := Words(`(?<!['\w:-])`, `(?!['\w:-])`, keywords...)
wordOperators := []string{
`X`, `Z`, `R`, `after`, `and`, `andthen`, `before`, `cmp`, `div`, `eq`, `eqv`, `extra`, `ge`,
`gt`, `le`, `leg`, `lt`, `mod`, `ne`, `or`, `orelse`, `x`, `xor`, `xx`, `gcd`, `lcm`,
`but`, `min`, `max`, `^fff`, `fff^`, `fff`, `^ff`, `ff^`, `ff`, `so`, `not`, `unicmp`,
`TR`, `o`, `(&)`, `(.)`, `(|)`, `(+)`, `(-)`, `(^)`, `coll`, `(elem)`, `(==)`,
`(cont)`, `(<)`, `(<=)`, `(>)`, `(>=)`, `minmax`, `notandthen`, `S`,
}
wordOperatorsPattern := Words(`(?<=^|\b|\s)`, `(?=$|\b|\s)`, wordOperators...)
operators := []string{
`++`, `--`, `-`, `**`, `!`, `+`, `~`, `?`, `+^`, `~^`, `?^`, `^`, `*`, `/`, `%`, `%%`, `+&`,
`+<`, `+>`, `~&`, `~<`, `~>`, `?&`, `+|`, `+^`, `~|`, `~^`, `?`, `?|`, `?^`, `&`, `^`,
`<=>`, `^…^`, `^…`, `…^`, `…`, `...`, `...^`, `^...`, `^...^`, `..`, `..^`, `^..`, `^..^`,
`::=`, `:=`, `!=`, `==`, `<=`, `<`, `>=`, `>`, `~~`, `===`, `&&`, `||`, `|`, `^^`, `//`,
`??`, `!!`, `^fff^`, `^ff^`, `<==`, `==>`, `<<==`, `==>>`, `=>`, `=`, `<<`, `«`, `>>`, `»`,
`,`, `>>.`, `».`, `.&`, `.=`, `.^`, `.?`, `.+`, `.*`, `.`, `∘`, `∩`, `⊍`, `∪`, `⊎`, `∖`,
`⊖`, `≠`, `≤`, `≥`, `=:=`, `=~=`, `≅`, `∈`, `∉`, `≡`, `≢`, `∋`, `∌`, `⊂`, `⊄`, `⊆`, `⊈`,
`⊃`, `⊅`, `⊇`, `⊉`, `:`, `!!!`, `???`, `¯`, `×`, `÷`, `−`, `⁺`, `⁻`,
}
operatorsPattern := Words(``, ``, operators...)
builtinTypes := []string{
`False`, `True`, `Order`, `More`, `Less`, `Same`, `Any`, `Array`, `Associative`, `AST`,
`atomicint`, `Attribute`, `Backtrace`, `Backtrace::Frame`, `Bag`, `Baggy`, `BagHash`,
`Blob`, `Block`, `Bool`, `Buf`, `Callable`, `CallFrame`, `Cancellation`, `Capture`,
`CArray`, `Channel`, `Code`, `compiler`, `Complex`, `ComplexStr`, `CompUnit`,
`CompUnit::PrecompilationRepository`, `CompUnit::Repository`, `Empty`,
`CompUnit::Repository::FileSystem`, `CompUnit::Repository::Installation`, `Cool`,
`CurrentThreadScheduler`, `CX::Warn`, `CX::Take`, `CX::Succeed`, `CX::Return`, `CX::Redo`,
`CX::Proceed`, `CX::Next`, `CX::Last`, `CX::Emit`, `CX::Done`, `Cursor`, `Date`, `Dateish`,
`DateTime`, `Distribution`, `Distribution::Hash`, `Distribution::Locally`,
`Distribution::Path`, `Distribution::Resource`, `Distro`, `Duration`, `Encoding`,
`Encoding::Registry`, `Endian`, `Enumeration`, `Exception`, `Failure`, `FatRat`, `Grammar`,
`Hash`, `HyperWhatever`, `Instant`, `Int`, `int`, `int16`, `int32`, `int64`, `int8`, `str`,
`IntStr`, `IO`, `IO::ArgFiles`, `IO::CatHandle`, `IO::Handle`, `IO::Notification`,
`IO::Notification::Change`, `IO::Path`, `IO::Path::Cygwin`, `IO::Path::Parts`,
`IO::Path::QNX`, `IO::Path::Unix`, `IO::Path::Win32`, `IO::Pipe`, `IO::Socket`,
`IO::Socket::Async`, `IO::Socket::Async::ListenSocket`, `IO::Socket::INET`, `IO::Spec`,
`IO::Spec::Cygwin`, `IO::Spec::QNX`, `IO::Spec::Unix`, `IO::Spec::Win32`, `IO::Special`,
`Iterable`, `Iterator`, `Junction`, `Kernel`, `Label`, `List`, `Lock`, `Lock::Async`,
`Lock::ConditionVariable`, `long`, `longlong`, `Macro`, `Map`, `Match`,
`Metamodel::AttributeContainer`, `Metamodel::C3MRO`, `Metamodel::ClassHOW`,
`Metamodel::ConcreteRoleHOW`, `Metamodel::CurriedRoleHOW`, `Metamodel::DefiniteHOW`,
`Metamodel::Documenting`, `Metamodel::EnumHOW`, `Metamodel::Finalization`,
`Metamodel::MethodContainer`, `Metamodel::Mixins`, `Metamodel::MROBasedMethodDispatch`,
`Metamodel::MultipleInheritance`, `Metamodel::Naming`, `Metamodel::Primitives`,
`Metamodel::PrivateMethodContainer`, `Metamodel::RoleContainer`, `Metamodel::RolePunning`,
`Metamodel::Stashing`, `Metamodel::Trusting`, `Metamodel::Versioning`, `Method`, `Mix`,
`MixHash`, `Mixy`, `Mu`, `NFC`, `NFD`, `NFKC`, `NFKD`, `Nil`, `Num`, `num32`, `num64`,
`Numeric`, `NumStr`, `ObjAt`, `Order`, `Pair`, `Parameter`, `Perl`, `Pod::Block`,
`Pod::Block::Code`, `Pod::Block::Comment`, `Pod::Block::Declarator`, `Pod::Block::Named`,
`Pod::Block::Para`, `Pod::Block::Table`, `Pod::Heading`, `Pod::Item`, `Pointer`,
`Positional`, `PositionalBindFailover`, `Proc`, `Proc::Async`, `Promise`, `Proxy`,
`PseudoStash`, `QuantHash`, `RaceSeq`, `Raku`, `Range`, `Rat`, `Rational`, `RatStr`,
`Real`, `Regex`, `Routine`, `Routine::WrapHandle`, `Scalar`, `Scheduler`, `Semaphore`,
`Seq`, `Sequence`, `Set`, `SetHash`, `Setty`, `Signature`, `size_t`, `Slip`, `Stash`,
`Str`, `StrDistance`, `Stringy`, `Sub`, `Submethod`, `Supplier`, `Supplier::Preserving`,
`Supply`, `Systemic`, `Tap`, `Telemetry`, `Telemetry::Instrument::Thread`,
`Telemetry::Instrument::ThreadPool`, `Telemetry::Instrument::Usage`, `Telemetry::Period`,
`Telemetry::Sampler`, `Thread`, `Test`, `ThreadPoolScheduler`, `UInt`, `uint16`, `uint32`,
`uint64`, `uint8`, `Uni`, `utf8`, `ValueObjAt`, `Variable`, `Version`, `VM`, `Whatever`,
`WhateverCode`, `WrapHandle`, `NativeCall`,
// Pragmas
`precompilation`, `experimental`, `worries`, `MONKEY-TYPING`, `MONKEY-SEE-NO-EVAL`,
`MONKEY-GUTS`, `fatal`, `lib`, `isms`, `newline`, `nqp`, `soft`,
`strict`, `trace`, `variables`,
}
builtinTypesPattern := Words(`(?<!['\w:-])`, `(?::[_UD])?(?!['\w:-])`, builtinTypes...)
builtinRoutines := []string{
`ACCEPTS`, `abs`, `abs2rel`, `absolute`, `accept`, `accepts_type`, `accessed`, `acos`,
`acosec`, `acosech`, `acosh`, `acotan`, `acotanh`, `acquire`, `act`, `action`, `actions`,
`add`, `add_attribute`, `add_enum_value`, `add_fallback`, `add_method`, `add_parent`,
`add_private_method`, `add_role`, `add_stash`, `add_trustee`, `addendum`, `adverb`, `after`,
`all`, `allocate`, `allof`, `allowed`, `alternative-names`, `annotations`, `antipair`,
`antipairs`, `any`, `anyof`, `api`, `app_lifetime`, `append`, `arch`, `archetypes`,
`archname`, `args`, `ARGS-TO-CAPTURE`, `arity`, `Array`, `asec`, `asech`, `asin`, `asinh`,
`ASSIGN-KEY`, `ASSIGN-POS`, `assuming`, `ast`, `at`, `atan`, `atan2`, `atanh`, `AT-KEY`,
`atomic-assign`, `atomic-dec-fetch`, `atomic-fetch`, `atomic-fetch-add`, `atomic-fetch-dec`,
`atomic-fetch-inc`, `atomic-fetch-sub`, `atomic-inc-fetch`, `AT-POS`, `attributes`, `auth`,
`await`, `backend`, `backtrace`, `Bag`, `bag`, `Baggy`, `BagHash`, `bail-out`, `base`,
`basename`, `base-repeating`, `base_type`, `batch`, `BIND-KEY`, `BIND-POS`, `bind-stderr`,
`bind-stdin`, `bind-stdout`, `bind-udp`, `bits`, `bless`, `block`, `Bool`, `bool-only`,
`bounds`, `break`, `Bridge`, `broken`, `BUILD`, `TWEAK`, `build-date`, `bytes`, `cache`,
`callframe`, `calling-package`, `CALL-ME`, `callsame`, `callwith`, `can`, `cancel`,
`candidates`, `cando`, `can-ok`, `canonpath`, `caps`, `caption`, `Capture`, `capture`,
`cas`, `catdir`, `categorize`, `categorize-list`, `catfile`, `catpath`, `cause`, `ceiling`,
`cglobal`, `changed`, `Channel`, `channel`, `chars`, `chdir`, `child`, `child-name`,
`child-typename`, `chmod`, `chomp`, `chop`, `chr`, `chrs`, `chunks`, `cis`, `classify`,
`classify-list`, `cleanup`, `clone`, `close`, `closed`, `close-stdin`, `cmp-ok`, `code`,
`codename`, `codes`, `coerce_type`, `coll`, `collate`, `column`, `comb`, `combinations`,
`command`, `comment`, `compiler`, `Complex`, `compose`, `composalizer`, `compose_type`,
`compose_values`, `composer`, `compute_mro`, `condition`, `config`, `configure_destroy`,
`configure_type_checking`, `conj`, `connect`, `constraints`, `construct`, `contains`,
`content`, `contents`, `copy`, `cos`, `cosec`, `cosech`, `cosh`, `cotan`, `cotanh`, `count`,
`count-only`, `cpu-cores`, `cpu-usage`, `CREATE`, `create_type`, `cross`, `cue`, `curdir`,
`curupdir`, `d`, `Date`, `DateTime`, `day`, `daycount`, `day-of-month`, `day-of-week`,
`day-of-year`, `days-in-month`, `dd-mm-yyyy`, `declaration`, `decode`, `decoder`, `deepmap`,
`default`, `defined`, `DEFINITE`, `definite`, `delayed`, `delete`, `delete-by-compiler`,
`DELETE-KEY`, `DELETE-POS`, `denominator`, `desc`, `DESTROY`, `destroyers`, `devnull`,
`diag`, `did-you-mean`, `die`, `dies-ok`, `dir`, `dirname`, `distribution`, `dir-sep`,
`DISTROnames`, `do`, `does`, `does-ok`, `done`, `done-testing`, `duckmap`, `dynamic`, `e`,
`eager`, `earlier`, `elems`, `emit`, `enclosing`, `encode`, `encoder`, `encoding`, `end`,
`endian`, `ends-with`, `enum_from_value`, `enum_value_list`, `enum_values`, `enums`, `EOF`,
`eof`, `EVAL`, `eval-dies-ok`, `EVALFILE`, `eval-lives-ok`, `event`, `exception`,
`excludes-max`, `excludes-min`, `EXISTS-KEY`, `EXISTS-POS`, `exit`, `exitcode`, `exp`,
`expected`, `explicitly-manage`, `expmod`, `export_callback`, `extension`, `f`, `fail`,
`FALLBACK`, `fails-like`, `fc`, `feature`, `file`, `filename`, `files`, `find`,
`find_method`, `find_method_qualified`, `finish`, `first`, `flat`, `first-date-in-month`,
`flatmap`, `flip`, `floor`, `flunk`, `flush`, `flush_cache`, `fmt`, `format`, `formatter`,
`free-memory`, `freeze`, `from`, `from-list`, `from-loop`, `from-posix`, `from-slurpy`,
`full`, `full-barrier`, `GENERATE-USAGE`, `generate_mixin`, `get`, `get_value`, `getc`,
`gist`, `got`, `grab`, `grabpairs`, `grep`, `handle`, `handled`, `handles`, `hardware`,
`has_accessor`, `Hash`, `hash`, `head`, `headers`, `hh-mm-ss`, `hidden`, `hides`, `hostname`,
`hour`, `how`, `hyper`, `id`, `illegal`, `im`, `in`, `in-timezone`, `indent`, `index`,
`indices`, `indir`, `infinite`, `infix`, `postcirumfix`, `cicumfix`, `install`,
`install_method_cache`, `Instant`, `instead`, `Int`, `int-bounds`, `interval`, `in-timezone`,
`invalid-str`, `invert`, `invocant`, `IO`, `IO::Notification.watch-path`, `is_trusted`,
`is_type`, `isa`, `is-absolute`, `isa-ok`, `is-approx`, `is-deeply`, `is-hidden`,
`is-initial-thread`, `is-int`, `is-lazy`, `is-leap-year`, `isNaN`, `isnt`, `is-prime`,
`is-relative`, `is-routine`, `is-setting`, `is-win`, `item`, `iterator`, `join`, `keep`,
`kept`, `KERNELnames`, `key`, `keyof`, `keys`, `kill`, `kv`, `kxxv`, `l`, `lang`, `last`,
`lastcall`, `later`, `lazy`, `lc`, `leading`, `level`, `like`, `line`, `lines`, `link`,
`List`, `list`, `listen`, `live`, `lives-ok`, `load`, `load-repo-id`, `load-unit`, `loaded`,
`loads`, `local`, `lock`, `log`, `log10`, `lookup`, `lsb`, `made`, `MAIN`, `make`, `Map`,
`map`, `match`, `max`, `maxpairs`, `merge`, `message`, `method`, `meta`, `method_table`,
`methods`, `migrate`, `min`, `minmax`, `minpairs`, `minute`, `misplaced`, `Mix`, `mix`,
`MixHash`, `mixin`, `mixin_attribute`, `Mixy`, `mkdir`, `mode`, `modified`, `month`, `move`,
`mro`, `msb`, `multi`, `multiness`, `name`, `named`, `named_names`, `narrow`,
`nativecast`, `native-descriptor`, `nativesizeof`, `need`, `new`, `new_type`,
`new-from-daycount`, `new-from-pairs`, `next`, `nextcallee`, `next-handle`, `nextsame`,
`nextwith`, `next-interesting-index`, `NFC`, `NFD`, `NFKC`, `NFKD`, `nice`, `nl-in`,
`nl-out`, `nodemap`, `nok`, `normalize`, `none`, `norm`, `not`, `note`, `now`, `nude`,
`Num`, `numerator`, `Numeric`, `of`, `offset`, `offset-in-hours`, `offset-in-minutes`,
`ok`, `old`, `on-close`, `one`, `on-switch`, `open`, `opened`, `operation`, `optional`,
`ord`, `ords`, `orig`, `os-error`, `osname`, `out-buffer`, `pack`, `package`, `package-kind`,
`package-name`, `packages`, `Pair`, `pair`, `pairs`, `pairup`, `parameter`, `params`,
`parent`, `parent-name`, `parents`, `parse`, `parse-base`, `parsefile`, `parse-names`,
`parts`, `pass`, `path`, `path-sep`, `payload`, `peer-host`, `peer-port`, `periods`, `perl`,
`permutations`, `phaser`, `pick`, `pickpairs`, `pid`, `placeholder`, `plan`, `plus`,
`polar`, `poll`, `polymod`, `pop`, `pos`, `positional`, `posix`, `postfix`, `postmatch`,
`precomp-ext`, `precomp-target`, `precompiled`, `pred`, `prefix`, `prematch`, `prepend`,
`primary`, `print`, `printf`, `print-nl`, `print-to`, `private`, `private_method_names`,
`private_method_table`, `proc`, `produce`, `Promise`, `promise`, `prompt`, `protect`,
`protect-or-queue-on-recursion`, `publish_method_cache`, `pull-one`, `push`, `push-all`,
`push-at-least`, `push-exactly`, `push-until-lazy`, `put`, `qualifier-type`, `quaternary`,
`quit`, `r`, `race`, `radix`, `raku`, `rand`, `Range`, `range`, `Rat`, `raw`, `re`, `read`,
`read-bits`, `read-int128`, `read-int16`, `read-int32`, `read-int64`, `read-int8`,
`read-num32`, `read-num64`, `read-ubits`, `read-uint128`, `read-uint16`, `read-uint32`,
`read-uint64`, `read-uint8`, `readchars`, `readonly`, `ready`, `Real`, `reallocate`,
`reals`, `reason`, `rebless`, `receive`, `recv`, `redispatcher`, `redo`, `reduce`,
`rel2abs`, `relative`, `release`, `remove`, `rename`, `repeated`, `replacement`,
`replace-with`, `repo`, `repo-id`, `report`, `required`, `reserved`, `resolve`, `restore`,
`result`, `resume`, `rethrow`, `return`, `return-rw`, `returns`, `reverse`, `right`,
`rindex`, `rmdir`, `role`, `roles_to_compose`, `rolish`, `roll`, `rootdir`, `roots`,
`rotate`, `rotor`, `round`, `roundrobin`, `routine-type`, `run`, `RUN-MAIN`, `rw`, `rwx`,
`samecase`, `samemark`, `samewith`, `say`, `schedule-on`, `scheduler`, `scope`, `sec`,
`sech`, `second`, `secondary`, `seek`, `self`, `send`, `Seq`, `Set`, `set`, `serial`,
`set_hidden`, `set_name`, `set_package`, `set_rw`, `set_value`, `set_api`, `set_auth`,
`set_composalizer`, `set_export_callback`, `set_is_mixin`, `set_mixin_attribute`,
`set_package`, `set_ver`, `set_why`, `SetHash`, `Setty`, `set-instruments`,
`setup_finalization`, `setup_mixin_cache`, `shape`, `share`, `shell`, `short-id`,
`short-name`, `shortname`, `shift`, `sibling`, `sigil`, `sign`, `signal`, `signals`,
`signature`, `sin`, `sinh`, `sink`, `sink-all`, `skip`, `skip-at-least`,
`skip-at-least-pull-one`, `skip-one`, `skip-rest`, `sleep`, `sleep-timer`, `sleep-until`,
`Slip`, `slip`, `slurp`, `slurp-rest`, `slurpy`, `snap`, `snapper`, `so`, `socket-host`,
`socket-port`, `sort`, `source`, `source-package`, `spawn`, `SPEC`, `splice`, `split`,
`splitdir`, `splitpath`, `sprintf`, `spurt`, `sqrt`, `squish`, `srand`, `stable`, `start`,
`started`, `starts-with`, `status`, `stderr`, `stdout`, `STORE`, `store-file`,
`store-repo-id`, `store-unit`, `Str`, `Stringy`, `sub_signature`, `subbuf`, `subbuf-rw`,
`subname`, `subparse`, `subst`, `subst-mutate`, `substr`, `substr-eq`, `substr-rw`,
`subtest`, `succ`, `sum`, `suffix`, `summary`, `Supply`, `symlink`, `T`, `t`, `tail`,
`take`, `take-rw`, `tan`, `tanh`, `tap`, `target`, `target-name`, `tc`, `tclc`, `tell`,
`term`, `tertiary`, `then`, `throttle`, `throw`, `throws-like`, `time`, `timezone`,
`tmpdir`, `to`, `today`, `todo`, `toggle`, `to-posix`, `total`, `total-memory`, `trailing`,
`trans`, `tree`, `trim`, `trim-leading`, `trim-trailing`, `truncate`, `truncated-to`,
`trusts`, `try_acquire`, `trying`, `twigil`, `type`, `type_captures`, `type_check`,
`typename`, `uc`, `udp`, `uncaught_handler`, `undefine`, `unimatch`, `unicmp`, `uniname`,
`uninames`, `uninstall`, `uniparse`, `uniprop`, `uniprops`, `unique`, `unival`, `univals`,
`unlike`, `unlink`, `unlock`, `unpack`, `unpolar`, `unset`, `unshift`, `unwrap`, `updir`,
`USAGE`, `usage-name`, `use-ok`, `utc`, `val`, `value`, `values`, `VAR`, `variable`, `ver`,
`verbose-config`, `Version`, `version`, `VMnames`, `volume`, `vow`, `w`, `wait`, `warn`,
`watch`, `watch-path`, `week`, `weekday-of-month`, `week-number`, `week-year`, `WHAT`,
`what`, `when`, `WHERE`, `WHEREFORE`, `WHICH`, `WHO`, `whole-second`, `WHY`, `why`,
`with-lock-hidden-from-recursion-check`, `wordcase`, `words`, `workaround`, `wrap`,
`write`, `write-bits`, `write-int128`, `write-int16`, `write-int32`, `write-int64`,
`write-int8`, `write-num32`, `write-num64`, `write-ubits`, `write-uint128`, `write-uint16`,
`write-uint32`, `write-uint64`, `write-uint8`, `write-to`, `x`, `yada`, `year`, `yield`,
`yyyy-mm-dd`, `z`, `zip`, `zip-latest`, `HOW`, `s`, `DEPRECATED`, `trait_mod`,
}
builtinRoutinesPattern := Words(`(?<!['\w:-])`, `(?!['\w-])`, builtinRoutines...)
// A map of opening and closing brackets
brackets := map[rune]rune{
'\u0028': '\u0029', '\u003c': '\u003e', '\u005b': '\u005d',
'\u007b': '\u007d', '\u00ab': '\u00bb', '\u0f3a': '\u0f3b',
'\u0f3c': '\u0f3d', '\u169b': '\u169c', '\u2018': '\u2019',
'\u201a': '\u2019', '\u201b': '\u2019', '\u201c': '\u201d',
'\u201e': '\u201d', '\u201f': '\u201d', '\u2039': '\u203a',
'\u2045': '\u2046', '\u207d': '\u207e', '\u208d': '\u208e',
'\u2208': '\u220b', '\u2209': '\u220c', '\u220a': '\u220d',
'\u2215': '\u29f5', '\u223c': '\u223d', '\u2243': '\u22cd',
'\u2252': '\u2253', '\u2254': '\u2255', '\u2264': '\u2265',
'\u2266': '\u2267', '\u2268': '\u2269', '\u226a': '\u226b',
'\u226e': '\u226f', '\u2270': '\u2271', '\u2272': '\u2273',
'\u2274': '\u2275', '\u2276': '\u2277', '\u2278': '\u2279',
'\u227a': '\u227b', '\u227c': '\u227d', '\u227e': '\u227f',
'\u2280': '\u2281', '\u2282': '\u2283', '\u2284': '\u2285',
'\u2286': '\u2287', '\u2288': '\u2289', '\u228a': '\u228b',
'\u228f': '\u2290', '\u2291': '\u2292', '\u2298': '\u29b8',
'\u22a2': '\u22a3', '\u22a6': '\u2ade', '\u22a8': '\u2ae4',
'\u22a9': '\u2ae3', '\u22ab': '\u2ae5', '\u22b0': '\u22b1',
'\u22b2': '\u22b3', '\u22b4': '\u22b5', '\u22b6': '\u22b7',
'\u22c9': '\u22ca', '\u22cb': '\u22cc', '\u22d0': '\u22d1',
'\u22d6': '\u22d7', '\u22d8': '\u22d9', '\u22da': '\u22db',
'\u22dc': '\u22dd', '\u22de': '\u22df', '\u22e0': '\u22e1',
'\u22e2': '\u22e3', '\u22e4': '\u22e5', '\u22e6': '\u22e7',
'\u22e8': '\u22e9', '\u22ea': '\u22eb', '\u22ec': '\u22ed',
'\u22f0': '\u22f1', '\u22f2': '\u22fa', '\u22f3': '\u22fb',
'\u22f4': '\u22fc', '\u22f6': '\u22fd', '\u22f7': '\u22fe',
'\u2308': '\u2309', '\u230a': '\u230b', '\u2329': '\u232a',
'\u23b4': '\u23b5', '\u2768': '\u2769', '\u276a': '\u276b',
'\u276c': '\u276d', '\u276e': '\u276f', '\u2770': '\u2771',
'\u2772': '\u2773', '\u2774': '\u2775', '\u27c3': '\u27c4',
'\u27c5': '\u27c6', '\u27d5': '\u27d6', '\u27dd': '\u27de',
'\u27e2': '\u27e3', '\u27e4': '\u27e5', '\u27e6': '\u27e7',
'\u27e8': '\u27e9', '\u27ea': '\u27eb', '\u2983': '\u2984',
'\u2985': '\u2986', '\u2987': '\u2988', '\u2989': '\u298a',
'\u298b': '\u298c', '\u298d': '\u298e', '\u298f': '\u2990',
'\u2991': '\u2992', '\u2993': '\u2994', '\u2995': '\u2996',
'\u2997': '\u2998', '\u29c0': '\u29c1', '\u29c4': '\u29c5',
'\u29cf': '\u29d0', '\u29d1': '\u29d2', '\u29d4': '\u29d5',
'\u29d8': '\u29d9', '\u29da': '\u29db', '\u29f8': '\u29f9',
'\u29fc': '\u29fd', '\u2a2b': '\u2a2c', '\u2a2d': '\u2a2e',
'\u2a34': '\u2a35', '\u2a3c': '\u2a3d', '\u2a64': '\u2a65',
'\u2a79': '\u2a7a', '\u2a7d': '\u2a7e', '\u2a7f': '\u2a80',
'\u2a81': '\u2a82', '\u2a83': '\u2a84', '\u2a8b': '\u2a8c',
'\u2a91': '\u2a92', '\u2a93': '\u2a94', '\u2a95': '\u2a96',
'\u2a97': '\u2a98', '\u2a99': '\u2a9a', '\u2a9b': '\u2a9c',
'\u2aa1': '\u2aa2', '\u2aa6': '\u2aa7', '\u2aa8': '\u2aa9',
'\u2aaa': '\u2aab', '\u2aac': '\u2aad', '\u2aaf': '\u2ab0',
'\u2ab3': '\u2ab4', '\u2abb': '\u2abc', '\u2abd': '\u2abe',
'\u2abf': '\u2ac0', '\u2ac1': '\u2ac2', '\u2ac3': '\u2ac4',
'\u2ac5': '\u2ac6', '\u2acd': '\u2ace', '\u2acf': '\u2ad0',
'\u2ad1': '\u2ad2', '\u2ad3': '\u2ad4', '\u2ad5': '\u2ad6',
'\u2aec': '\u2aed', '\u2af7': '\u2af8', '\u2af9': '\u2afa',
'\u2e02': '\u2e03', '\u2e04': '\u2e05', '\u2e09': '\u2e0a',
'\u2e0c': '\u2e0d', '\u2e1c': '\u2e1d', '\u2e20': '\u2e21',
'\u3008': '\u3009', '\u300a': '\u300b', '\u300c': '\u300d',
'\u300e': '\u300f', '\u3010': '\u3011', '\u3014': '\u3015',
'\u3016': '\u3017', '\u3018': '\u3019', '\u301a': '\u301b',
'\u301d': '\u301e', '\ufd3e': '\ufd3f', '\ufe17': '\ufe18',
'\ufe35': '\ufe36', '\ufe37': '\ufe38', '\ufe39': '\ufe3a',
'\ufe3b': '\ufe3c', '\ufe3d': '\ufe3e', '\ufe3f': '\ufe40',
'\ufe41': '\ufe42', '\ufe43': '\ufe44', '\ufe47': '\ufe48',
'\ufe59': '\ufe5a', '\ufe5b': '\ufe5c', '\ufe5d': '\ufe5e',
'\uff08': '\uff09', '\uff1c': '\uff1e', '\uff3b': '\uff3d',
'\uff5b': '\uff5d', '\uff5f': '\uff60', '\uff62': '\uff63',
}
bracketsPattern := `[` + regexp.QuoteMeta(joinRuneMap(brackets)) + `]`
// Finds opening brackets and their closing counterparts (including pod and heredoc)
// and modifies state groups and position accordingly
bracketsFinder := func(tokenClass RakuToken) MutatorFunc {
return func(state *LexerState) error {
var openingChars []rune
var adverbs []rune
switch tokenClass {
case rakuRegexInsideToken:
openingChars = []rune("{")
case rakuPod:
openingChars = []rune(strings.Join(state.Groups[1:5], ``))
default:
adverbs = []rune(state.NamedGroups[`adverbs`])
openingChars = []rune(state.NamedGroups[`opening_delimiters`])
}
openingChar := openingChars[0]
nChars := len(openingChars)
var closingChar rune
var closingCharExists bool
var closingChars []rune
switch tokenClass {
case rakuPod:
closingChars = []rune(state.NamedGroups[`ws`] + `=end ` + state.NamedGroups[`name`])
closingCharExists = true
default:
closingChar, closingCharExists = brackets[openingChar]
}
switch tokenClass {
case rakuPodFormatter:
stack, ok := state.Get("pod_formatter_stack").([]RakuFormatterRules)
if !ok {
stack = []RakuFormatterRules{}
}
popRule := makeRuleAndPushMaybe(RuleMakingConfig{
delimiter: []rune{closingChar},
numberOfDelimiterChars: nChars,
tokenType: Punctuation,
mutator: Mutators(Pop(1), MutatorFunc(podFormatterPopper)),
})
var formatter TokenType = StringOther
switch state.NamedGroups[`keyword`] {
case "B":
formatter = GenericStrong
case "I":
formatter = GenericEmph
case "U":
formatter = GenericUnderline
}
formattingRule := makeRuleAndPushMaybe(RuleMakingConfig{
pattern: `.+?`,
tokenType: formatter,
mutator: nil,
})
state.Set("pod_formatter_stack",
append(stack, RakuFormatterRules{popRule, formattingRule}))
return nil
case rakuMatchRegex, rakuSubstitutionSingleRegex, rakuRegexInsideToken:
// We're inside a regex
// While matching a regex, the closing chars may have been used inside the regex
// so we have to push to regex state and pop on the matched closing chars
// and return
var delimiter []rune
if closingCharExists {
delimiter = []rune{closingChar}
} else {
delimiter = openingChars
}
makeRuleAndPushMaybe(RuleMakingConfig{
delimiter: delimiter,
tokenType: Punctuation,
mutator: Pop(1),
rulePosition: topRule,
state: state,
stateName: "regex",
pushToStack: true,
numberOfDelimiterChars: nChars,
})
return nil
}
text := state.Text
var endPos int
var nonMirroredOpeningCharPosition int
if !closingCharExists {
// it's not a mirrored character, which means we
// just need to look for the next occurrence
nonMirroredOpeningCharPosition = indexAt(text, openingChars, state.Pos)
endPos = nonMirroredOpeningCharPosition
} else {
if tokenClass != rakuPod {
closingChars = []rune(strings.Repeat(string(closingChar), nChars))
}
// we need to look for the corresponding closing character,
// keep nesting in mind
nestingLevel := 1
searchPos := state.Pos - nChars
var nextClosePos int
for nestingLevel > 0 {
nextOpenPos := indexAt(text, openingChars, searchPos+nChars)
nextClosePos = indexAt(text, closingChars, searchPos+nChars)
switch {
case nextClosePos == -1:
nextClosePos = len(text)
nestingLevel = 0
case nextOpenPos != -1 && nextOpenPos < nextClosePos:
nestingLevel++
nChars = len(openingChars)
searchPos = nextOpenPos
default: // next_close_pos < next_open_pos
nestingLevel--
nChars = len(closingChars)
searchPos = nextClosePos
}
}
endPos = nextClosePos
}
if endPos < 0 {
// if we didn't find a closer, just highlight the
// rest of the text in this class
endPos = len(text)
}
adverbre := regexp.MustCompile(`:to\b|:heredoc\b`)
var heredocTerminator []rune
if adverbre.MatchString(string(adverbs)) {
heredocTerminator = text[state.Pos:endPos]
if len(heredocTerminator) > 0 {
endHeredocPos := indexAt(text[endPos:], heredocTerminator, 0)
nChars = len(heredocTerminator)
endPos += endHeredocPos
} else {
endPos = len(text)
}
}
textBetweenBrackets := string(text[state.Pos:endPos])
switch tokenClass {
case rakuPod, rakuPodDeclaration, rakuNameAttribute:
state.NamedGroups[`value`] = textBetweenBrackets
state.NamedGroups[`closing_delimiters`] = string(closingChars)
case rakuQuote:
if len(heredocTerminator) > 0 {
// Length of heredoc terminator + closing chars + `;`
heredocFristPunctuationLen := len(heredocTerminator) + len(openingChars) + 1
state.NamedGroups[`opening_delimiters`] = string(openingChars) +
string(text[state.Pos:state.Pos+heredocFristPunctuationLen])
state.NamedGroups[`value`] =
string(text[state.Pos+heredocFristPunctuationLen : endPos])
state.NamedGroups[`closing_delimiters`] = string(heredocTerminator)
} else {
state.NamedGroups[`value`] = textBetweenBrackets
state.NamedGroups[`closing_delimiters`] = string(closingChars)
}
default:
state.Groups = []string{state.Groups[0] + string(text[state.Pos:endPos+nChars])}
}
state.Pos = endPos + nChars
return nil
}
}
// Raku rules
// Empty capture groups are placeholders and will be replaced by bracketsFinder.
// DO NOT REMOVE THEM!
return Rules{
"root": {
Include("common"),
{`[{}();]`, Punctuation, nil},
{`\[|\]`, Operator, nil},
{`.+?`, Text, nil},
},
"common": {
{`^#![^\n]*$`, CommentHashbang, nil},
Include("pod"),
// Multi-line, Embedded comment
{
"#`(?<opening_delimiters>(?<delimiter>" + bracketsPattern + `)\k<delimiter>*)`,
CommentMultiline,
bracketsFinder(rakuMultilineComment),
},
{`#[^\n]*$`, CommentSingle, nil},
// /regex/
{
`(?<=(?:^|\(|=|:|~~|\[|,|=>)\s*)(/)(?!\]|\))((?:\\\\|\\/|.)*?)((?<!(?<!\\)\\)/(?!'|"))`,
ByGroups(Punctuation, UsingSelf("regex"), Punctuation),
MutatorFunc(makeRegexPoppingRule),
},
Include("variable"),
// ::?VARIABLE
{`::\?\w+(?::[_UD])?`, NameVariableGlobal, nil},
// Version
{
`\b(v)(\d+)((?:\.(?:\*|[\d\w]+))*)(\+)?`,
ByGroups(Keyword, NumberInteger, NameEntity, Operator),
nil,
},
Include("number"),
// Hyperoperator | »*«
{`(>>)(\S+?)(<<)`, ByGroups(Operator, UsingSelf("root"), Operator), nil},
{`(»)(\S+?)(«)`, ByGroups(Operator, UsingSelf("root"), Operator), nil},
// Hyperoperator | «*«
{`(<<)(\S+?)(<<)`, ByGroups(Operator, UsingSelf("root"), Operator), nil},
{`(«)(\S+?)(«)`, ByGroups(Operator, UsingSelf("root"), Operator), nil},
// Hyperoperator | »*»
{`(>>)(\S+?)(>>)`, ByGroups(Operator, UsingSelf("root"), Operator), nil},
{`(»)(\S+?)(»)`, ByGroups(Operator, UsingSelf("root"), Operator), nil},
// <<quoted words>>
{`(?<!(?:\d+|\.(?:Int|Numeric)|[$@%][\w':-]+\s+|[\])}]\s+)\s*)(<<)(?!(?:(?!>>)[^\n])+?[},;] *\n)(?!(?:(?!>>).)+?>>\S+?>>)`, Punctuation, Push("<<")},
// «quoted words»
{`(?<!(?:\d+|\.(?:Int|Numeric)|[$@%][\w':-]+\s+|[\])}]\s+)\s*)(«)(?![^»]+?[},;] *\n)(?![^»]+?»\S+?»)`, Punctuation, Push("«")},
// [<]
{`(?<=\[\\?)<(?=\])`, Operator, nil},
// < and > operators | something < onething > something
{
`(?<=[$@%&]?\w[\w':-]* +)(<=?)( *[^ ]+? *)(>=?)(?= *[$@%&]?\w[\w':-]*)`,
ByGroups(Operator, UsingSelf("root"), Operator),
nil,
},
// <quoted words>
{
`(?<!(?:\d+|\.(?:Int|Numeric)|[$@%][\w':-]+\s+|[\])}]\s+)\s*)(<)((?:(?![,;)}] *(?:#[^\n]+)?\n)[^<>])+?)(>)(?!\s*(?:\d+|\.(?:Int|Numeric)|[$@%]\w[\w':-]*[^(]|\s+\[))`,
ByGroups(Punctuation, String, Punctuation),
nil,
},
{`C?X::['\w:-]+`, NameException, nil},
Include("metaoperator"),
// Pair | (key) => value
{
`(\([^)]+\))(\s*)(=>)(\s*)([^,\n]+)(,?\n*)`,
ByGroups(UsingSelf("root"), Text, Operator, Text, UsingSelf("root"), Text),
nil,
},
// Pair | key => value
{
`(\w[\w'-]*)(\s*)(=>)(\s*)([^,\n]+)(,?\n*)`,
ByGroups(String, Text, Operator, Text, UsingSelf("root"), Text),
nil,
},
Include("colon-pair"),
// Token
{
// Token with adverbs
`(?<=(?:^|\s)(?:regex|token|rule)(\s+))(['\w:-]+)(?=:['\w-]+` +
colonPairOpeningBrackets + `.+?` + colonPairClosingBrackets + `[({])`,
NameFunction,
Push("token", "name-adverb"),
},
{
// Token without adverbs
`(?<=(?:^|\s)(?:regex|token|rule)(?:\s+))(['\w:-]+)`,
NameFunction,
Push("token"),
},
// Substitution
{`(?<=^|\b|\s)(?<!\.)(ss|S|s|TR|tr)\b(\s*)`, ByGroups(Keyword, Text), Push("substitution")},
{keywordsPattern, Keyword, nil},
{builtinTypesPattern, NameBuiltin, nil},
{builtinRoutinesPattern, NameBuiltin, nil},
// Class name
{
`(?<=(?:^|\s)(?:class|grammar|role|does|but|is|subset|of)\s+)` + namePattern,
NameClass,
Push("name-adverb"),
},
// Routine
{
// Routine with adverbs
`(?<=(?:^|\s)(?:sub|method|multi sub|multi)\s+)!?['\w:-]+(?=:['\w-]+` +
colonPairOpeningBrackets + `.+?` + colonPairClosingBrackets + `[({])`,
NameFunction,
Push("name-adverb"),
},
{
// Routine without adverbs
`(?<=(?:^|\s)(?:sub|submethod|method|multi)\s+)!?['\w:-]+`,
NameFunction,
nil,
},
// Constant
{`(?<=\bconstant\s+)` + namePattern, NameConstant, Push("name-adverb")},
// Namespace
{`(?<=\b(?:use|module|package)\s+)` + namePattern, NameNamespace, Push("name-adverb")},
Include("operator"),
Include("single-quote"),
{`(?<!(?<!\\)\\)"`, Punctuation, Push("double-quotes")},
// m,rx regex
{`(?<=^|\b|\s)(ms|m|rx)\b(\s*)`, ByGroups(Keyword, Text), Push("rx")},
// Quote constructs
{
`(?<=^|\b|\s)(?<keyword>(?:qq|q|Q))(?<adverbs>(?::?(?:heredoc|to|qq|ww|q|w|s|a|h|f|c|b|to|v|x))*)(?<ws>\s*)(?<opening_delimiters>(?<delimiter>[^0-9a-zA-Z:\s])\k<delimiter>*)`,
EmitterFunc(quote),
bracketsFinder(rakuQuote),
},
// Function
{
`\b(?:\w['\w:-]*)(?=:['\w-]+` +
colonPairOpeningBrackets + `.+?` + colonPairClosingBrackets + `\()`,
NameFunction,
Push("name-adverb"),
},
{`\b(?:\w['\w:-]*)(?=\()`, NameFunction, nil},
// Method
// Method with adverb
{
`(?<!\.\.[?^*+]?)(?<=(?:\.[?^*+&]?)|self!)['\w:-]+(?=:['\w-]+` +
colonPairOpeningBrackets + `.+?` + colonPairClosingBrackets + `$)`,
NameFunction,
Push("name-adverb"),
},
// Method without adverb
{`(?<!\.\.[?^*+]?)(?<=(?:\.[?^*+&]?)|self!)['\w:-]+`, NameFunction, nil},
// Indirect invocant
{namePattern + `(?=\s+\W?['\w:-]+:\W)`, NameFunction, Push("name-adverb")},
{`(?<=\W)(?:∅|i|e|𝑒|tau|τ|pi|π|Inf|∞)(?=\W)`, NameConstant, nil},
{`(｢)([^｣]*)(｣)`, ByGroups(Punctuation, String, Punctuation), nil},
{`(?<=^ *)\b` + namePattern + `(?=:\s*(?:for|while|loop))`, NameLabel, nil},
// Sigilless variable
{
`(?<=\b(?:my|our|constant|let|temp)\s+)\\` + namePattern,
NameVariable,
Push("name-adverb"),
},
{namePattern, Name, Push("name-adverb")},
},
"rx": {
Include("colon-pair-attribute"),
{
`(?<opening_delimiters>(?<delimiter>[^\w:\s])\k<delimiter>*)`,
ByGroupNames(map[string]Emitter{
`opening_delimiters`: Punctuation,
`delimiter`: nil,
}),
Mutators(Pop(1), bracketsFinder(rakuMatchRegex)),
},
},
"substitution": {
Include("colon-pair-attribute"),
// Substitution | s{regex} = value
{
`(?<opening_delimiters>(?<delimiter>` + bracketsPattern + `)\k<delimiter>*)`,
ByGroupNames(map[string]Emitter{
`opening_delimiters`: Punctuation,
`delimiter`: nil,
}),
Mutators(Pop(1), bracketsFinder(rakuSubstitutionSingleRegex)),
},
// Substitution | s/regex/string/
{
`([^\w:\s])((?:\\\\|\\/|.)*?)(\1)((?:\\\\|\\/|.)*?)(\1)`,
ByGroups(
Punctuation, UsingSelf("regex"), Punctuation, UsingSelf("qq"), Punctuation,
),
Mutators(Pop(1), MutatorFunc(makeRegexPoppingRule)),
},
},
"number": {
{`0_?[0-7]+(_[0-7]+)*`, LiteralNumberOct, nil},
{`0x[0-9A-Fa-f]+(_[0-9A-Fa-f]+)*`, LiteralNumberHex, nil},
{`0b[01]+(_[01]+)*`, LiteralNumberBin, nil},
{
`(?i)(\d*(_\d*)*\.\d+(_\d*)*|\d+(_\d*)*\.\d+(_\d*)*)(e[+-]?\d+)?`,
LiteralNumberFloat,
nil,
},
{`(?i)\d+(_\d*)*e[+-]?\d+(_\d*)*`, LiteralNumberFloat, nil},
{`(?<=\d+)i`, NameConstant, nil},
{`\d+(_\d+)*`, LiteralNumberInteger, nil},
},
"name-adverb": {
Include("colon-pair-attribute-keyvalue"),
Default(Pop(1)),
},
"colon-pair": {
// :key(value)
{colonPairPattern, colonPair(String), bracketsFinder(rakuNameAttribute)},
// :123abc
{
`(:)(\d+)(\w[\w'-]*)(\s*[,;)]?\s*$)`,
ByGroups(Punctuation, UsingSelf("number"), String, Text),
nil,
},
// :key
{`(:!?)(\w[\w'-]*)`, ByGroups(Punctuation, String), nil},
{`\s+`, Text, nil},
},
"colon-pair-attribute": {
// :key(value)
{colonPairPattern, colonPair(NameAttribute), bracketsFinder(rakuNameAttribute)},
// :123abc
{
`(:)(\d+)(\w+)(\s*[,;)]?\s*$)`,
ByGroups(Punctuation, UsingSelf("number"), NameAttribute, Text),
nil,
},
// :key
{`(:!?)(\w[\w'-]*)`, ByGroups(Punctuation, NameAttribute), nil},
{`\s+`, Text, nil},
},
"colon-pair-attribute-keyvalue": {
// :key(value)
{colonPairPattern, colonPair(NameAttribute), bracketsFinder(rakuNameAttribute)},
},
"escape-qq": {
{
`(?<!(?<!\\)\\)(\\qq)(\[)(.+?)(\])`,
ByGroups(StringEscape, Punctuation, UsingSelf("qq"), Punctuation),
nil,
},
},
"escape-c-name": {
{
`(?<!(?<!\\)\\)(\\[c|C])(\[)(.+?)(\])`,
ByGroups(StringEscape, Punctuation, String, Punctuation),
nil,
},
},
"escape-hexadecimal": {
{
`(?<!(?<!\\)\\)(\\[x|X])(\[)([0-9a-fA-F]+)(\])`,
ByGroups(StringEscape, Punctuation, NumberHex, Punctuation),
nil,
},
{`(\\[x|X])([0-9a-fA-F]+)`, ByGroups(StringEscape, NumberHex), nil},
},
"regex": {
// Placeholder, will be overwritten by bracketsFinder, DO NOT REMOVE!
{`^$`, nil, nil},
Include("regex-escape-class"),
// $(code)
{
`(?<!(?<!\\)\\)([$@])(\()(.*?)(\))`,
ByGroups(Keyword, Punctuation, UsingSelf("root"), Punctuation),
nil,
},
// Exclude $/ from variables, because we can't get out of the end of the slash regex: $/;
{`\$(?=/)`, NameEntity, nil},
// Exclude $ from variables
{`\$(?=\z|\s|[^<(\w*!.])`, NameEntity, nil},
Include("variable"),
Include("escape-c-name"),
Include("escape-hexadecimal"),
Include("number"),
Include("single-quote"),
// :my variable code ...
{
`(?<!(?<!\\)\\)(:)(my|our|state|constant|temp|let)(.+?;)`,
ByGroups(Operator, KeywordDeclaration, UsingSelf("root")),
nil,
},
// <{code}>
{
`(?<!(?<!\\)\\)(<)([?!])?((?<!(?<!\\)\\){)(.*?)(}>)`,
ByGroups(Punctuation, Operator, Punctuation, UsingSelf("root"), Punctuation),
nil,
},
// {code}
{`(?<!(?<!\\)\\)({)(.*?)(})`, ByGroups(Punctuation, UsingSelf("root"), Punctuation), nil},
// Properties
{`(:)(\w+)`, ByGroups(Punctuation, NameAttribute), nil},
// Operator
{`\|\||\||&&|&|\.\.|\*\*|%%|%|:|!|<<|«|>>|»|\+|\*\*|\*|\?|=|~|<~~>`, Operator, nil},
// Anchors
{`\^\^|\^|\$\$|\$`, NameEntity, nil},
{`\.`, NameEntity, nil},
{`#[^\n]*\n`, CommentSingle, nil},
// Lookaround
{
`(?<!(?<!\\)\\)(<)(\s*)([?!.])(\s*)(after|before)`,
ByGroups(Punctuation, Text, Operator, Text, OperatorWord),
Push("regex"),
},
{
`(?<!(?<!\\)\\)(<)([|!?.]*)(wb|ww|ws|w)(>)`,
ByGroups(Punctuation, Operator, OperatorWord, Punctuation),
nil,
},
// <$variable>
{
`(?<!(?<!\\)\\)(<)([$@]\w[\w-:]*)(>)`,
ByGroups(Punctuation, NameVariable, Punctuation),
nil,
},
// Capture markers
{`(?<!(?<!\\)\\)<\(|\)>`, Operator, nil},
{`(?<!(?<!\\)\\)<`, Punctuation, Push("regex-property")},
{`(?<!(?<!\\)\\)"`, Punctuation, Push("double-quotes")},
{`(?<!(?<!\\)\\)(?:\]|\)|>)`, Punctuation, Pop(1)},
{`(?<!(?<!\\)\\)(?:\[|\()`, Punctuation, Push("regex")},
{`.+?`, StringRegex, nil},
},
"regex-class-builtin": {
{
`\b(?:alnum|alpha|blank|cntrl|digit|graph|lower|print|punct|space|upper|xdigit|same|ident)\b`,
NameBuiltin,
nil,
},
},
"regex-property": {
{`(?<!(?<!\\)\\)>`, Punctuation, Pop(1)},
Include("regex-class-builtin"),
Include("variable"),
// <regexfunc> | <regexfunc(parameter)> | <variable=regexfunc>
{
`(?:(\w[\w-:]*)(=\.?))?(&?\w[\w'-:]+?)(\(.+?\))?(?=>)`,
ByGroups(
NameVariable, Operator, NameFunction, UsingSelf("root"),
),
nil,
},
// <func: value>
{
`(&?\w[\w':-]*?)(:)((?:.*?(?:\$<\w[\w':-]*>)?.*?)*?)(?=>)`,
ByGroups(
NameFunction, Punctuation, UsingSelf("root"),
),
nil,
},
Include("colon-pair-attribute"),
{`(?<!(?<!\\)\\)\[`, Punctuation, Push("regex-character-class")},
{`\+|\-`, Operator, nil},
{`@[\w'-:]+`, NameVariable, nil},
{`(?<=<)[|!?.]`, Operator, nil},
{`.+?`, StringRegex, nil},
},
"regex-escape-class": {
{`(?i)\\n|\\t|\\h|\\v|\\s|\\d|\\w`, StringEscape, nil},
},
"regex-character-class": {
{`(?<!(?<!\\)\\)\]`, Punctuation, Pop(1)},
Include("regex-escape-class"),
Include("escape-c-name"),
Include("escape-hexadecimal"),
Include("number"),
{`\.\.`, Operator, nil},
{`.+?`, StringRegex, nil},
},
"metaoperator": {
// Z[=>]
{
`\b([RZX]+)\b(\[)([^\s\]]+?)(\])`,
ByGroups(OperatorWord, Punctuation, UsingSelf("root"), Punctuation),
nil,
},
// Z=>
{`\b([RZX]+)\b([^\s\]]+)`, ByGroups(OperatorWord, UsingSelf("operator")), nil},
},
"operator": {
// Word Operator
{wordOperatorsPattern, OperatorWord, nil},
// Operator
{operatorsPattern, Operator, nil},
},
"pod": {
// Single-line pod declaration
{`(#[|=])\s`, Keyword, Push("pod-single")},
// Multi-line pod declaration
{
"(?<keyword>#[|=])(?<opening_delimiters>(?<delimiter>" + bracketsPattern + `)\k<delimiter>*)(?<value>)(?<closing_delimiters>)`,
ByGroupNames(
map[string]Emitter{
`keyword`: Keyword,
`opening_delimiters`: Punctuation,
`delimiter`: nil,
`value`: UsingSelf("pod-begin"),
`closing_delimiters`: Punctuation,
}),
bracketsFinder(rakuPodDeclaration),
},
Include("pod-blocks"),
},
"pod-blocks": {
// =begin code
{
`(?<=^ *)(?<ws> *)(?<keyword>=begin)(?<ws2> +)(?<name>code)(?<config>[^\n]*)(?<value>.*?)(?<ws3>^\k<ws>)(?<end_keyword>=end)(?<ws4> +)\k<name>`,
EmitterFunc(podCode),
nil,
},
// =begin
{
`(?<=^ *)(?<ws> *)(?<keyword>=begin)(?<ws2> +)(?!code)(?<name>\w[\w'-]*)(?<config>[^\n]*)(?<value>)(?<closing_delimiters>)`,
ByGroupNames(
map[string]Emitter{
`ws`: Comment,
`keyword`: Keyword,
`ws2`: StringDoc,
`name`: Keyword,
`config`: EmitterFunc(podConfig),
`value`: UsingSelf("pod-begin"),
`closing_delimiters`: Keyword,
}),
bracketsFinder(rakuPod),
},
// =for ...
{
`(?<=^ *)(?<ws> *)(?<keyword>=(?:for|defn))(?<ws2> +)(?<name>\w[\w'-]*)(?<config>[^\n]*\n)`,
ByGroups(Comment, Keyword, StringDoc, Keyword, EmitterFunc(podConfig)),
Push("pod-paragraph"),
},
// =config
{
`(?<=^ *)(?<ws> *)(?<keyword>=config)(?<ws2> +)(?<name>\w[\w'-]*)(?<config>[^\n]*\n)`,
ByGroups(Comment, Keyword, StringDoc, Keyword, EmitterFunc(podConfig)),
nil,
},
// =alias
{
`(?<=^ *)(?<ws> *)(?<keyword>=alias)(?<ws2> +)(?<name>\w[\w'-]*)(?<value>[^\n]*\n)`,
ByGroups(Comment, Keyword, StringDoc, Keyword, StringDoc),
nil,
},
// =encoding
{
`(?<=^ *)(?<ws> *)(?<keyword>=encoding)(?<ws2> +)(?<name>[^\n]+)`,
ByGroups(Comment, Keyword, StringDoc, Name),
nil,
},
// =para ...
{
`(?<=^ *)(?<ws> *)(?<keyword>=(?:para|table|pod))(?<config>(?<!\n\s*)[^\n]*\n)`,
ByGroups(Comment, Keyword, EmitterFunc(podConfig)),
Push("pod-paragraph"),
},
// =head1 ...
{
`(?<=^ *)(?<ws> *)(?<keyword>=head\d+)(?<ws2> *)(?<config>#?)`,
ByGroups(Comment, Keyword, GenericHeading, Keyword),
Push("pod-single-heading"),
},
// =item ...
{
`(?<=^ *)(?<ws> *)(?<keyword>=(?:item\d*|comment|data|[A-Z]+))(?<ws2> *)(?<config>#?)`,
ByGroups(Comment, Keyword, StringDoc, Keyword),
Push("pod-single"),
},
{
`(?<=^ *)(?<ws> *)(?<keyword>=finish)(?<config>[^\n]*)`,
ByGroups(Comment, Keyword, EmitterFunc(podConfig)),
Push("pod-finish"),
},
// ={custom} ...
{
`(?<=^ *)(?<ws> *)(?<name>=\w[\w'-]*)(?<ws2> *)(?<config>#?)`,
ByGroups(Comment, Name, StringDoc, Keyword),
Push("pod-single"),
},
// = podconfig
{
`(?<=^ *)(?<keyword> *=)(?<ws> *)(?<config>(?::\w[\w'-]*(?:` + colonPairOpeningBrackets + `.+?` +
colonPairClosingBrackets + `) *)*\n)`,
ByGroups(Keyword, StringDoc, EmitterFunc(podConfig)),
nil,
},
},
"pod-begin": {
Include("pod-blocks"),
Include("pre-pod-formatter"),
{`.+?`, StringDoc, nil},
},
"pod-paragraph": {
{`\n\s*?\n`, StringDoc, Pop(1)},
Include("pre-pod-formatter"),
{`.+?`, StringDoc, nil},
},
"pod-single": {
{`\n`, StringDoc, Pop(1)},
Include("pre-pod-formatter"),
{`.+?`, StringDoc, nil},
},
"pod-single-heading": {
{`\n`, GenericHeading, Pop(1)},
Include("pre-pod-formatter"),
{`.+?`, GenericHeading, nil},
},
"pod-finish": {
{`\z`, nil, Pop(1)},
Include("pre-pod-formatter"),
{`.+?`, StringDoc, nil},
},
"pre-pod-formatter": {
// C<code>, B<bold>, ...
{
`(?<keyword>[CBIUDTKRPAELZVMSXN])(?<opening_delimiters><+|«)`,
ByGroups(Keyword, Punctuation),
Mutators(
bracketsFinder(rakuPodFormatter),
Push("pod-formatter"), MutatorFunc(podFormatter),
),
},
},
"pod-formatter": {
// Placeholder rule, will be replaced by podFormatter. DO NOT REMOVE!
{`>`, Punctuation, Pop(1)},
Include("pre-pod-formatter"),
// Placeholder rule, will be replaced by podFormatter. DO NOT REMOVE!
{`.+?`, StringOther, nil},
},
"variable": {
{variablePattern, NameVariable, Push("name-adverb")},
{globalVariablePattern, NameVariableGlobal, Push("name-adverb")},
{`[$@](?:<.*?>)+`, NameVariable, nil},
{`\$/`, NameVariable, nil},
{`\$!`, NameVariable, nil},
{`[$@%]`, NameVariable, nil},
},
"single-quote": {
{`(?<!(?<!\\)\\)'`, Punctuation, Push("single-quote-inner")},
},
"single-quote-inner": {
{`(?<!(?<!(?<!\\)\\)\\)'`, Punctuation, Pop(1)},
Include("escape-qq"),
{`(?:\\\\|\\[^\\]|[^'\\])+?`, StringSingle, nil},
},
"double-quotes": {
{`(?<!(?<!\\)\\)"`, Punctuation, Pop(1)},
Include("qq"),
},
"<<": {
{`>>(?!\s*(?:\d+|\.(?:Int|Numeric)|[$@%][\w':-]+|\s+\[))`, Punctuation, Pop(1)},
Include("ww"),
},
"«": {
{`»(?!\s*(?:\d+|\.(?:Int|Numeric)|[$@%][\w':-]+|\s+\[))`, Punctuation, Pop(1)},
Include("ww"),
},
"ww": {
Include("single-quote"),
Include("qq"),
},
"qq": {
Include("qq-variable"),
// Function with adverb
{
`\w[\w:'-]+(?=:['\w-]+` +
colonPairOpeningBrackets + `.+?` + colonPairClosingBrackets + `\()`,
NameFunction,
Push("qq-function", "name-adverb"),
},
// Function without adverb
{`\w[\w:'-]+(?=\((?!"))`, NameFunction, Push("qq-function")},
Include("closure"),
Include("escape-hexadecimal"),
Include("escape-c-name"),
Include("escape-qq"),
{`.+?`, StringDouble, nil},
},
"qq-function": {
{`(\([^"]*?\))`, UsingSelf("root"), nil},
Default(Pop(1)),
},
"qq-variable": {
{
`(?<!(?<!\\)\\)(?:` + variablePattern + `|` + globalVariablePattern + `)`,
NameVariable,
Push("qq-variable-extras", "name-adverb"),
},
},
"qq-variable-extras": {
{`(?:\[.*?\]|\{.*?\}|<<.*?>>|<.*?>|«.*?»)+`, UsingSelf("root"), nil},
// Method
{
`(\.)([^(\s]+)(\([^"]*?\))`,
ByGroups(Operator, NameFunction, UsingSelf("root")),
nil,
},
Default(Pop(1)),
},
"Q": {
Include("escape-qq"),
{`.+?`, String, nil},
},
"Q-closure": {
Include("escape-qq"),
Include("closure"),
{`.+?`, String, nil},
},
"Q-variable": {
Include("escape-qq"),
Include("qq-variable"),
{`.+?`, String, nil},
},
"closure": {
{`(?<!(?<!\\)\\)\{.+?\}`, UsingSelf("root"), nil},
},
"token": {
// Token signature
{`(\()(.+?)(\))`, ByGroups(Punctuation, UsingSelf("root"), Punctuation), nil},
{`\{`, Punctuation, Mutators(Pop(1), bracketsFinder(rakuRegexInsideToken))},
{`.+?`, Text, nil},
},
}
}
// Joins keys and values of rune map
func joinRuneMap(m map[rune]rune) string {
runes := make([]rune, 0, len(m)*2)
for k, v := range m {
runes = append(runes, k)
runes = append(runes, v)
}
return string(runes)
}
// Finds the index of substring in the string starting at position n
func indexAt(str []rune, substr []rune, pos int) int {
text := string(str[pos:])
idx := strings.Index(text, string(substr))
if idx > -1 {
idx = utf8.RuneCountInString(text[:idx])
idx += pos
}
return idx
}
// Tells if an array of string contains a string
func contains(s []string, e string) bool {
for _, value := range s {
if value == e {
return true
}
}
return false
}
type RakuFormatterRules struct {
pop, formatter *CompiledRule
}
// Pop from the pod_formatter_stack and reformat the pod code
func podFormatterPopper(state *LexerState) error {
stack, ok := state.Get("pod_formatter_stack").([]RakuFormatterRules)
if ok && len(stack) > 0 {
// Pop from stack
stack = stack[:len(stack)-1]
state.Set("pod_formatter_stack", stack)
// Call podFormatter to use the last formatter rules
err := podFormatter(state)
if err != nil {
panic(err)
}
}
return nil
}
// Use the rules from pod_formatter_stack to format the pod code
func podFormatter(state *LexerState) error {
stack, ok := state.Get("pod_formatter_stack").([]RakuFormatterRules)
if ok && len(stack) > 0 {
rules := stack[len(stack)-1]
state.Rules["pod-formatter"][0] = rules.pop
state.Rules["pod-formatter"][len(state.Rules["pod-formatter"])-1] = rules.formatter
}
return nil
}
type RulePosition int
const (
topRule RulePosition = iota + 1000
bottomRule
)
type RuleMakingConfig struct {
delimiter []rune
pattern string
tokenType TokenType
mutator Mutator
rulePosition RulePosition
state *LexerState
stateName string
pushToStack bool
numberOfDelimiterChars int
}
// Makes compiled rules and returns them, If rule position is given, rules are added to the state
// If pushToStack is true, state name will be added to the state stack
func makeRuleAndPushMaybe(config RuleMakingConfig) *CompiledRule {
var rePattern string
if len(config.delimiter) > 0 {
delimiter := strings.Repeat(string(config.delimiter), config.numberOfDelimiterChars)
rePattern = regexp2.Escape(delimiter)
} else {
rePattern = config.pattern
}
regex := regexp2.MustCompile(rePattern, regexp2.None)
cRule := &CompiledRule{
Rule: Rule{rePattern, config.tokenType, config.mutator},
Regexp: regex,
}
state := config.state
stateName := config.stateName
switch config.rulePosition {
case topRule:
state.Rules[stateName] =
append([]*CompiledRule{cRule}, state.Rules[stateName][1:]...)
case bottomRule:
state.Rules[stateName] =
append(state.Rules[stateName][:len(state.Rules[stateName])-1], cRule)
}
// Push state name to stack if asked
if config.pushToStack {
state.Stack = append(state.Stack, config.stateName)
}
return cRule
}
// Used when the regex knows its own delimiter and uses `UsingSelf("regex")`,
// it only puts a placeholder rule at the top of "regex" state
func makeRegexPoppingRule(state *LexerState) error {
makeRuleAndPushMaybe(RuleMakingConfig{
pattern: `^$`,
rulePosition: topRule,
state: state,
stateName: "regex",
})
return nil
}
// Emitter for colon pairs, changes token state based on key and brackets
func colonPair(tokenClass TokenType) Emitter {
return EmitterFunc(func(groups []string, state *LexerState) Iterator {
iterators := []Iterator{}
tokens := []Token{
{Punctuation, state.NamedGroups[`colon`]},
{Punctuation, state.NamedGroups[`opening_delimiters`]},
{Punctuation, state.NamedGroups[`closing_delimiters`]},
}
// Append colon
iterators = append(iterators, Literator(tokens[0]))
if tokenClass == NameAttribute {
iterators = append(iterators, Literator(Token{NameAttribute, state.NamedGroups[`key`]}))
} else {
var keyTokenState string
keyre := regexp.MustCompile(`^\d+$`)
if keyre.MatchString(state.NamedGroups[`key`]) {
keyTokenState = "common"
} else {
keyTokenState = "Q"
}
// Use token state to Tokenise key
if keyTokenState != "" {
iterator, err := state.Lexer.Tokenise(
&TokeniseOptions{
State: keyTokenState,
Nested: true,
}, state.NamedGroups[`key`])
if err != nil {
panic(err)
} else {
// Append key
iterators = append(iterators, iterator)
}
}
}
// Append punctuation
iterators = append(iterators, Literator(tokens[1]))
var valueTokenState string
switch state.NamedGroups[`opening_delimiters`] {
case "(", "{", "[":
valueTokenState = "root"
case "<<", "«":
valueTokenState = "ww"
case "<":
valueTokenState = "Q"
}
// Use token state to Tokenise value
if valueTokenState != "" {
iterator, err := state.Lexer.Tokenise(
&TokeniseOptions{
State: valueTokenState,
Nested: true,
}, state.NamedGroups[`value`])
if err != nil {
panic(err)
} else {
// Append value
iterators = append(iterators, iterator)
}
}
// Append last punctuation
iterators = append(iterators, Literator(tokens[2]))
return Concaterator(iterators...)
})
}
// Emitter for quoting constructs, changes token state based on quote name and adverbs
func quote(groups []string, state *LexerState) Iterator {
keyword := state.NamedGroups[`keyword`]
adverbsStr := state.NamedGroups[`adverbs`]
iterators := []Iterator{}
tokens := []Token{
{Keyword, keyword},
{StringAffix, adverbsStr},
{Text, state.NamedGroups[`ws`]},
{Punctuation, state.NamedGroups[`opening_delimiters`]},
{Punctuation, state.NamedGroups[`closing_delimiters`]},
}
// Append all tokens before dealing with the main string
iterators = append(iterators, Literator(tokens[:4]...))
var tokenStates []string
// Set tokenStates based on adverbs
adverbs := strings.Split(adverbsStr, ":")
for _, adverb := range adverbs {
switch adverb {
case "c", "closure":
tokenStates = append(tokenStates, "Q-closure")
case "qq":
tokenStates = append(tokenStates, "qq")
case "ww":
tokenStates = append(tokenStates, "ww")
case "s", "scalar", "a", "array", "h", "hash", "f", "function":
tokenStates = append(tokenStates, "Q-variable")
}
}
var tokenState string
switch {
case keyword == "qq" || contains(tokenStates, "qq"):
tokenState = "qq"
case adverbsStr == "ww" || contains(tokenStates, "ww"):
tokenState = "ww"
case contains(tokenStates, "Q-closure") && contains(tokenStates, "Q-variable"):
tokenState = "qq"
case contains(tokenStates, "Q-closure"):
tokenState = "Q-closure"
case contains(tokenStates, "Q-variable"):
tokenState = "Q-variable"
default:
tokenState = "Q"
}
iterator, err := state.Lexer.Tokenise(
&TokeniseOptions{
State: tokenState,
Nested: true,
}, state.NamedGroups[`value`])
if err != nil {
panic(err)
} else {
iterators = append(iterators, iterator)
}
// Append the last punctuation
iterators = append(iterators, Literator(tokens[4]))
return Concaterator(iterators...)
}
// Emitter for pod config, tokenises the properties with "colon-pair-attribute" state
func podConfig(groups []string, state *LexerState) Iterator {
// Tokenise pod config
iterator, err := state.Lexer.Tokenise(
&TokeniseOptions{
State: "colon-pair-attribute",
Nested: true,
}, groups[0])
if err != nil {
panic(err)
} else {
return iterator
}
}
// Emitter for pod code, tokenises the code based on the lang specified
func podCode(groups []string, state *LexerState) Iterator {
iterators := []Iterator{}
tokens := []Token{
{Comment, state.NamedGroups[`ws`]},
{Keyword, state.NamedGroups[`keyword`]},
{Keyword, state.NamedGroups[`ws2`]},
{Keyword, state.NamedGroups[`name`]},
{StringDoc, state.NamedGroups[`value`]},
{Comment, state.NamedGroups[`ws3`]},
{Keyword, state.NamedGroups[`end_keyword`]},
{Keyword, state.NamedGroups[`ws4`]},
{Keyword, state.NamedGroups[`name`]},
}
// Append all tokens before dealing with the pod config
iterators = append(iterators, Literator(tokens[:4]...))
// Tokenise pod config
iterators = append(iterators, podConfig([]string{state.NamedGroups[`config`]}, state))
langMatch := regexp.MustCompile(`:lang\W+(\w+)`).FindStringSubmatch(state.NamedGroups[`config`])
var lang string
if len(langMatch) > 1 {
lang = langMatch[1]
}
// Tokenise code based on lang property
sublexer := internal.Get(lang)
if sublexer != nil {
iterator, err := sublexer.Tokenise(nil, state.NamedGroups[`value`])
if err != nil {
panic(err)
} else {
iterators = append(iterators, iterator)
}
} else {
iterators = append(iterators, Literator(tokens[4]))
}
// Append the rest of the tokens
iterators = append(iterators, Literator(tokens[5:]...))
return Concaterator(iterators...)
}
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