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" https://github.com/Apeiros-46B/nvim/blob/main/after/syntax/uiua.vim
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" uiua 0.8.0
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if exists("b:current_syntax")
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finish
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endif
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let b:current_syntax = "uiua"
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syn iskeyword a-z
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syn keyword uiuaIdentifier e os Family Arch ExeExt DllExt Sep NumProcs MaxInt
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syn match uiuaIdentifier '\a\+!*'
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" {{{ functions and modifiers
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" constants and recur
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syn keyword uiuaNoadic eta pi tau inf[inity] rand[om] recu[r] tag now
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syn match uiuaNoadic '[ηπ∞τ⚂↫]'
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" monadic and dyadic pervasive functions
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syn keyword uiuaPervasive not sig[n] abs[olute] sqr[t] sin[e] flo[or] cei[ling] rou[nd] add subtract multiply divide mod[ulus] pow[er] log[arithm] min[imum] max[imum] ata[ngent] com[plex]
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syn match uiuaPervasive '[¬±`¯⌵√○⌊⌈⁅]\|!=\|<=\|>=\|[=≠<≤>≥+\-×*÷%◿ⁿₙ↧↥∠ℂ]'
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" monadic non-pervasive functions
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syn keyword uiuaMonadic len[gth] sha[pe] rang[e] fir[st] rev[erse] des[hape] fix bit[s] tran[spose] ris[e] fal[e] whe[re] cla[ssify] ded[uplicate] box par[se] wait recv tryrecv gen utf type memo comptime
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syn match uiuaMonadic '[⧻△⇡⊢⇌♭¤⋯⍉⍏⍖⊚⊛⊝□⋕↬]'
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" dyadic non-pervasive functions
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syn keyword uiuaDyadic joi[n] cou[ple] mat[ch] pic[k] sel[ect] res[hape] rer[ank] tak[e] dro[p] rot[ate] win[dows] kee[p] fin[d] mem[ber] ind[exof] ass[ert] send deal regex map has get insert remove
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syn match uiuaDyadic '[⊂⊟≍⊡⊏↯☇↙↘↻◫▽⌕∊⊗⍤]'
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" monadic modifiers
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" gap, dip, and identity single-letter spellings aren't accounted for
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" 1. it's not very useful since adjacent ones won't be highlighted
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" 2. it'll get formatted anyways
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syn keyword uiuaMonadicMod gap dip eac[h] row[s] tab[le] cro[ss] rep[eat] fol[d] reduce scan gro[up] par[tition] un bot[h] unp[ack] rect[ify] thi[s] spawn
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syn match uiuaMonadicMod '[⋅⊙∵≡⊞⊠⍥∧/\\⊕⊜°∩⊐⌅↬]'
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" non-monadic modifiers
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syn keyword uiuaOtherMod do und[er] fil[l] bra[cket] for[k] cas[cade] all try setinv setund
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syn match uiuaOtherMod /[⍢⍜⬚⊓⊃⪾⋔⍣]/
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" }}}
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" {{{ system functions
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" defined in inverse order so precedence for e.g.
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" &i and &ime, &s and &sc, etc. is correct
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" modules
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syn match uiuaModuleSF '&i'
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syn match uiuaDyadicSF '\v\&(rs|rb|ru|w|fwa|ime|ae|tcpsrt|tcpswt|httpsw)'
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syn match uiuaMonadicSF '\v\&(sl|s|pf|p|raw|var|runi|runc|cd|cl|fo|fc|fde|ftr|fe|fld|fif|fras|frab|fwa|imd|ims|gifd|gife|ad|ap|tcpl|tcpa|tcpc|tcpsnb|tcpaddr|invk)'
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syn match uiuaNoadicSF '\v\&(sc|ts|args|asr)'
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syn match uiuaModifierSF '&ast'
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" }}}
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" {{{ literals
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" numeric literal
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syn match uiuaNum 'NaN\|[¯`]\?\d\+\(\.\d\+\)\?\(e[¯`]\?\d\+\)\?'
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" escape sequence and format placeholder
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syn match uiuaEsc contained /\\[\\'"_0nrt]/
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syn match uiuaFmt contained '_'
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" character literal
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syn match uiuaChar '@.' contains=uiuaEsc
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" string literal (plain, format, and multiline)
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syn region uiuaStr start='"' end='"' skip='\\"' contains=uiuaEsc
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syn region uiuaStr start='\$"' end='"' skip='\\"' contains=uiuaEsc,uiuaFmt
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syn region uiuaStr start='\$ ' end='$' contains=uiuaEsc,uiuaFmt
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" }}}
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" {{{ misc
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" function signatures
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syn match uiuaSignature '|\d\+\(\.\d\+\)\?'
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" function placeholders in custom modifiers
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syn match uiuaFunctionPlaceholder '\^\d\+\(\.\d\+\)\?'
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" test scopes, <- assignments, stranded arrays, and ' or '' line joining
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syn match uiuaFaded '^---$\|[←_']'
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" debug functions
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syn keyword uiuaDebug dump stack trac[e]
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syn match uiuaDebug '[⸮?]'
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" comments
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syn match uiuaComment '#.*$'
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" }}}
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" {{{ highlight groups
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hi def link uiuaNoadic Keyword
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hi def link uiuaNoadicSF Keyword
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hi def link uiuaPervasive Operator
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hi def link uiuaMonadic Function
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hi def link uiuaMonadicSF Function
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hi def link uiuaDyadic Identifier
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hi def link uiuaDyadicSF Identifier
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hi def link uiuaMonadicMod Type
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hi def link uiuaOtherMod Number
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hi def link uiuaModifierSF Type
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hi def link uiuaOcean String
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hi def link uiuaModuleSF Keyword
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hi def link uiuaNum Number
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hi def link uiuaEsc SpecialChar
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hi def link uiuaChar String
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hi def link uiuaFmt Operator
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hi def link uiuaStr String
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hi def link uiuaSignature Type
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hi def link uiuaFunctionPlaceholder Keyword
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hi def link uiuaDebug Operator
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hi def link uiuaFaded Comment
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hi def link uiuaComment Comment
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" }}}
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