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vim.vim syntax does not reflect separate namespace for variables vs keywords #12055

Open dvogel opened 1 year ago

dvogel commented 1 year ago

Steps to reproduce

Use a keyword as a variable:

var ln = "..."

A screenshot:

before

Expected behaviour

The ln variable name would highlight the same as in let ln = "...".

Something similar to:

after

Version of Vim

v9.0.1349

Environment

Debian/testing gvim compiled from source

Logs and stack traces

None
dvogel commented 1 year ago

I haven't had a chance to test this broadly but this tweak is what I used to generate the expected screenshot:

diff --git a/runtime/syntax/vim.vim b/runtime/syntax/vim.vim
index 064416cc6..259e11afa 100644
--- a/runtime/syntax/vim.vim
+++ b/runtime/syntax/vim.vim
@@ -20,7 +20,7 @@ syn cluster vimCommentGroup   contains=vimTodo,@Spell

 " regular vim commands {{{2
 syn keyword vimCommand contained   a ar[gs] argl[ocal] bad[d] bn[ext] breakd[el] bw[ipeout] cabo[ve] cat[ch] ccl[ose] cfdo chd[ir] class cnf[ile] comc[lear] cp[revious] cstag debugg[reedy] delep dell diffg[et] dig[raphs] do dsp[lit] echoe[rr] em[enu] endfo[r] eval f[ile] fina[lly] foldd[oopen] gr[ep] helpc[lose] his[tory] ij[ump] inor j[oin] keepj[umps] lab[ove] lat lc[d] le[ft] lfir[st] lh[elpgrep] lmak[e] loadk lp[revious] luado ma[rk] mk[exrc] mz[scheme] new nore on[ly] pc[lose] pp[op] promptf[ind] ptj[ump] pu[t] py3f[ile] pyx r[ead] redrawt[abline] ri[ght] rundo sIl sal[l] sbf[irst] sc scp se[t] sg sgn sie sip sme snoremenu spelli[nfo] spr[evious] sri star[tinsert] sts[elect] sus[pend] syncbind tabN[ext] tabl[ast] tabr[ewind] tcld[o] tj[ump] tlu tno[remap] tu[nmenu] undol[ist] v vie[w] vne[w] win[size] wq xmapc[lear] xr[estore]
-syn keyword vimCommand contained   ab arga[dd] argu[ment] balt bo[tright] breakl[ist] cN[ext] cad[dbuffer] cb[uffer] cd cfir[st] che[ckpath] cle[arjumps] cnor comp[iler] cpf[ile] cun def deletel delm[arks] diffo[ff] dir doau e[dit] echom[sg] en[dif] endinterface ex files fini[sh] folddoc[losed] grepa[dd] helpf[ind] hor[izontal] il[ist] interface ju[mps] keepp[atterns] lad[dexpr] later lch[dir] lefta[bove] lg[etfile] lhi[story] lmapc[lear] loadkeymap lpf[ile] luafile mak[e] mks[ession] mzf[ile] nmapc[lear] nos[wapfile] opt[ions] pe[rl] pre[serve] promptr[epl] ptl[ast] public py[thon] pyxdo rec[over] reg[isters] rightb[elow] rv[iminfo] sIn san[dbox] sbl[ast] scI scr[iptnames] setf[iletype] sgI sgp sig sir smenu so[urce] spellr[are] sr srl startg[replace] substitutepattern sv[iew] syntime tabc[lose] tabm[ove] tabs tclf[ile] tl[ast] tlunmenu to[pleft] tunma[p] unh[ide] var vim9[cmd] vs[plit] winc[md] wqa[ll] xme xunme
+syn keyword vimCommand contained   ab arga[dd] argu[ment] balt bo[tright] breakl[ist] cN[ext] cad[dbuffer] cb[uffer] cd cfir[st] che[ckpath] cle[arjumps] cnor comp[iler] cpf[ile] cun def deletel delm[arks] diffo[ff] dir doau e[dit] echom[sg] en[dif] endinterface ex files fini[sh] folddoc[losed] grepa[dd] helpf[ind] hor[izontal] il[ist] interface ju[mps] keepp[atterns] lad[dexpr] later lch[dir] lefta[bove] lg[etfile] lhi[story] lmapc[lear] loadkeymap lpf[ile] luafile mak[e] mks[ession] mzf[ile] nmapc[lear] nos[wapfile] opt[ions] pe[rl] pre[serve] promptr[epl] ptl[ast] public py[thon] pyxdo rec[over] reg[isters] rightb[elow] rv[iminfo] sIn san[dbox] sbl[ast] scI scr[iptnames] setf[iletype] sgI sgp sig sir smenu so[urce] spellr[are] sr srl startg[replace] substitutepattern sv[iew] syntime tabc[lose] tabm[ove] tabs tclf[ile] tl[ast] tlunmenu to[pleft] tunma[p] unh[ide] vim9[cmd] vs[plit] winc[md] wqa[ll] xme xunme
 syn keyword vimCommand contained   abc[lear] argd[elete] as[cii] bd[elete] bp[revious] bro[wse] cNf[ile] cadde[xpr] cbe[fore] cdo cg[etfile] checkt[ime] clo[se] co[py] con[tinue] cq[uit] cuna[bbrev] defc[ompile] deletep delp diffp[atch] disa[ssemble] doaut ea echon endclass endt[ry] exi[t] filet fir[st] foldo[pen] gui helpg[rep] i imapc[lear] intro k lN[ext] laddb[uffer] lb[uffer] lcl[ose] leg[acy] lgetb[uffer] ll lne[xt] loc[kmarks] lr[ewind] lv[imgrep] marks mksp[ell] n[ext] noa nu[mber] ownsyntax ped[it] prev[ious] ps[earch] ptn[ext] pw[d] pydo pyxfile red[o] res[ize] ru[ntime] sI sIp sav[eas] sbm[odified] sce scripte[ncoding] setg[lobal] sgc sgr sign sl[eep] smile sor[t] spellr[epall] srI srn startr[eplace] substituterepeat sw[apname] t tabd[o] tabn[ext] tags te[aroff] tlm tm[enu] tp[revious] type unl ve[rsion] vim9s[cript] wN[ext] windo wundo xmenu xunmenu
 syn keyword vimCommand contained   abo[veleft] argded[upe] au bel[owright] br[ewind] bufdo c[hange] caddf[ile] cbel[ow] ce[nter] cgetb[uffer] chi[story] cmapc[lear] col[der] conf[irm] cr[ewind] cw[indow] defer deletl dep diffpu[t] dj[ump] dp earlier echow[indow] enddef endw[hile] exp filetype fix[del] for gvim helpt[ags] ia imp is[earch] kee[pmarks] lNf[ile] laddf[ile] lbe[fore] lcs lex[pr] lgete[xpr] lla[st] lnew[er] lockv[ar] ls lvimgrepa[dd] mat[ch] mkv[imrc] nb[key] noautocmd o[pen] p[rint] perld[o] pro ptN[ext] ptp[revious] py3 pyf[ile] q[uit] redi[r] ret[ab] rub[y] sIc sIr sbN[ext] sbn[ext] scg scriptv[ersion] setl[ocal] sge sh[ell] sil[ent] sla[st] sn[ext] sp[lit] spellr[rare] src srp static sun[hide] sy tN[ext] tabe[dit] tabnew tc[d] ter[minal] tlmenu tma[p] tr[ewind] u[ndo] unlo[ckvar] verb[ose] vim[grep] w[rite] winp[os] wv[iminfo] xnoreme xwininfo
 syn keyword vimCommand contained   abstract argdo bN[ext] bf[irst] brea[k] buffers ca caf[ter] cbo[ttom] cex[pr] cgete[xpr] cl[ist] cn[ext] colo[rscheme] cons[t] cs d[elete] delc[ommand] deletp di[splay] diffs[plit] dl dr[op] ec el[se] endenum ene[w] export filt[er] fo[ld] fu[nction] h[elp] hi iabc[lear] import isp[lit] keepa l[ist] laf[ter] lbel[ow] lcscope lf[ile] lgr[ep] lli[st] lnf[ile] lol[der] lt[ag] lw[indow] menut[ranslate] mkvie[w] nbc[lose] noh[lsearch] ol[dfiles] pa[ckadd] po[p] prof[ile] pta[g] ptr[ewind] py3do python3 qa[ll] redr[aw] retu[rn] rubyd[o] sIe sN[ext] sb[uffer] sbp[revious] sci scs sf[ind] sgi si sim[alt] sm[agic] sno[magic] spe[llgood] spellu[ndo] sre[wind] st[op] stj[ump] sunme syn ta[g] tabf[ind] tabo[nly] tch[dir] tf[irst] tln tmapc[lear] try una[bbreviate] uns[ilent] vert[ical] vimgrepa[dd] wa[ll] wn[ext] x[it] xnoremenu y[ank]
@@ -216,7 +216,7 @@ syn keyword vimFTOption contained   detect indent off on plugin

 " Augroup : vimAugroupError removed because long augroups caused sync'ing problems. {{{2
 " ======= : Trade-off: Increasing synclines with slower editing vs augroup END error checking.
-syn cluster vimAugroupList contains=vimAugroup,vimIsCommand,vimUserCmd,vimExecute,vimNotFunc,vimFuncName,vimFunction,vimFunctionError,vimLineComment,vimNotFunc,vimMap,vimSpecFile,vimOper,vimNumber,vimOperParen,vimComment,vim9Comment,vimString,vimSubst,vimMark,vimRegister,vimAddress,vimFilter,vimCmplxRepeat,vimComment,vim9Comment,vimLet,vimSet,vimAutoCmd,vimRegion,vimSynLine,vimNotation,vimCtrlChar,vimFuncVar,vimContinue,vimSetEqual,vimOption
+syn cluster vimAugroupList contains=vimAugroup,vimIsCommand,vimUserCmd,vimExecute,vimNotFunc,vimFuncName,vimFunction,vimFunctionError,vimLineComment,vimNotFunc,vimMap,vimSpecFile,vimOper,vimNumber,vimOperParen,vimComment,vim9Comment,vimString,vimSubst,vimMark,vimRegister,vimAddress,vimFilter,vimCmplxRepeat,vimComment,vim9Comment,vimLet,vimVarDecl,vimSet,vimAutoCmd,vimRegion,vimSynLine,vimNotation,vimCtrlChar,vimFuncVar,vimContinue,vimSetEqual,vimOption
 if exists("g:vimsyn_folding") && g:vimsyn_folding =~# 'a'
  syn region  vimAugroup    fold matchgroup=vimAugroupKey start="\<aug\%[roup]\>\ze\s\+\K\k*" end="\<aug\%[roup]\>\ze\s\+[eE][nN][dD]\>"    contains=vimAutoCmd,@vimAugroupList
 else
@@ -243,7 +243,7 @@ endif
 " Functions : Tag is provided for those who wish to highlight tagged functions {{{2
 " =========
 syn cluster    vimFuncList contains=vimCommand,vimFunctionError,vimFuncKey,Tag,vimFuncSID
-syn cluster    vimFuncBodyList contains=vimAbb,vimAddress,vimAugroupKey,vimAutoCmd,vimCmplxRepeat,vimComment,vim9Comment,vimContinue,vimCtrlChar,vimEcho,vimEchoHL,vimEnvvar,vimExecute,vimIsCommand,vimFBVar,vimFunc,vimFunction,vimFuncVar,vimGlobal,vimHighlight,vimIsCommand,vimLet,vimLetHereDoc,vimLineComment,vimMap,vimMark,vimNorm,vimNotation,vimNotFunc,vimNumber,vimOper,vimOperParen,vimRegion,vimRegister,vimSearch,vimSet,vimSpecFile,vimString,vimSubst,vimSynLine,vimUnmap,vimUserCommand
+syn cluster    vimFuncBodyList contains=vimAbb,vimAddress,vimAugroupKey,vimAutoCmd,vimCmplxRepeat,vimComment,vim9Comment,vimContinue,vimCtrlChar,vimEcho,vimEchoHL,vimEnvvar,vimExecute,vimIsCommand,vimFBVar,vimFunc,vimFunction,vimFuncVar,vimGlobal,vimHighlight,vimIsCommand,vimLet,vimVarDecl,vimLetHereDoc,vimLineComment,vimMap,vimMark,vimNorm,vimNotation,vimNotFunc,vimNumber,vimOper,vimOperParen,vimRegion,vimRegister,vimSearch,vimSet,vimSpecFile,vimString,vimSubst,vimSynLine,vimUnmap,vimUserCommand
 syn match  vimFunction "\<\(fu\%[nction]\)!\=\s\+\%(<[sS][iI][dD]>\|[sSgGbBwWtTlL]:\)\=\%(\i\|[#.]\|{.\{-1,}}\)*\ze\s*("   contains=@vimFuncList nextgroup=vimFuncBody
 syn match  vimFunction "\<def!\=\s\+\%(\i\|[#.]\|{.\{-1,}}\)*\ze\s*(" contains=@vimFuncList nextgroup=vimFuncBody
 "syn match vimFunction "\<def!\=\ze\s*(" contains=@vimFuncList nextgroup=vimFuncBody
@@ -276,7 +276,7 @@ syn match   vimSpecFileMod  "\(:[phtre]\)\+"    contained

 " User-Specified Commands: {{{2
 " =======================
-syn cluster    vimUserCmdList  contains=vimAddress,vimSyntax,vimHighlight,vimAutoCmd,vimCmplxRepeat,vimComment,vim9Comment,vimCtrlChar,vimEscapeBrace,vimFunc,vimFuncName,vimFunction,vimFunctionError,vimIsCommand,vimMark,vimNotation,vimNumber,vimOper,vimRegion,vimRegister,vimLet,vimSet,vimSetEqual,vimSetString,vimSpecFile,vimString,vimSubst,vimSubstRep,vimSubstRange,vimSynLine
+syn cluster    vimUserCmdList  contains=vimAddress,vimSyntax,vimHighlight,vimAutoCmd,vimCmplxRepeat,vimComment,vim9Comment,vimCtrlChar,vimEscapeBrace,vimFunc,vimFuncName,vimFunction,vimFunctionError,vimIsCommand,vimMark,vimNotation,vimNumber,vimOper,vimRegion,vimRegister,vimLet,vimVarDecl,vimSet,vimSetEqual,vimSetString,vimSpecFile,vimString,vimSubst,vimSubstRep,vimSubstRange,vimSynLine
 syn keyword    vimUserCommand  contained   com[mand]
 syn match  vimUserCmd  "\<com\%[mand]!\=\>.*$" contains=vimUserAttrb,vimUserAttrbError,vimUserCommand,@vimUserCmdList,vimComFilter
 syn match  vimUserAttrbError   contained   "-\a\+\ze\s"
@@ -401,6 +401,7 @@ syn match   vimSetMod   contained   "&vim\=\|[!&?<]\|all&"

 " Let: {{{2
 " ===
+syn keyword       vimVarDecl        var  skipwhite nextgroup=vimVar,vimFuncVar
 syn keyword    vimLet  let unl[et] skipwhite nextgroup=vimVar,vimFuncVar,vimLetHereDoc
 VimFoldh syn region vimLetHereDoc  matchgroup=vimLetHereDocStart start='=<<\s\+\%(trim\s\+\)\=\%(eval\s\+\)\=\s*\z(\L\S*\)'    matchgroup=vimLetHereDocStop end='^\s*\z1\s*$'

@@ -936,6 +937,7 @@ if !exists("skip_vim_syntax_inits")
  hi def link vimKeyCode    vimSpecFile
  hi def link vimKeyword    Statement
  hi def link vimLet    vimCommand
+ hi def link vimVarDecl    vimCommand
  hi def link vimLetHereDoc vimString
  hi def link vimLetHereDocStart    Special
  hi def link vimLetHereDocStop Special
brammool commented 1 year ago

@cecamp

h-east commented 1 year ago

@chrisbra , @yegappan I think it would be better to include this patch.

BTW, syntax/vim.vim author (@cecamp ) extracts the highlighted keywords from the help file, but the script code is not published. This is unhealthy from a FOSS perspective.

So I wrote a program in Vim script that extracts keywords from Vim source code and generates syntax/vim.vim. https://github.com/vim-jp/syntax-vim-ex

I tried to have a discussion with him about seven years ago, but he wouldn't even sit down at the table. [patch] Automatically generate syntax/vim.vim https://groups.google.com/g/vim_dev/c/ZSUw8grrOhw/m/bnJr3v5PBAAJ

At the very least, I think the current situation needs to change.

chrisbra commented 1 year ago

@h-east yes, @cecamp mentioned to me, there will be a change and it shouldn't be too far away. But I am waiting for him to announce it publicly.