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" Highlighting literate directives in C++ sources.
function! HighlightTangledFile()
" Tangled comments only make sense in the sources and are stripped out of
" the generated .cc file. They're highlighted same as regular comments.
syntax match tangledComment /\/\/:.*/ | highlight link tangledComment Comment
syntax match tangledSalientComment /\/\/::.*/ | highlight link tangledSalientComment SalientComment
set comments-=://
set comments-=n://
set comments+=n://:,n://
" Inside tangle scenarios.
syntax region tangleDirective start=+:(+ skip=+".*"+ end=+)+
highlight link tangleDirective Delimiter
syntax match traceContains /^+.*/
highlight traceContains ctermfg=22
syntax match traceAbsent /^-.*/
highlight traceAbsent ctermfg=darkred
syntax match tangleScenarioSetup /^\s*% .*/ | highlight link tangleScenarioSetup SpecialChar
highlight Special ctermfg=160
" Our C++ files can have Mu code in scenarios, so highlight Mu comments like
" regular comments.
syntax match muComment /#.*$/
highlight link muComment Comment
syntax match muSalientComment /##.*$/ | highlight link muSalientComment SalientComment
syntax match muCommentedCode /#? .*$/ | highlight link muCommentedCode CommentedCode
set comments+=n:#
" Some other bare-bones Mu highlighting.
syntax match muLiteral %[^ ]\+:literal/[^ ,]*\|[^ ]\+:literal\>%
syntax match muLiteral %[^ ]\+:label/[^ ,]*\|[^ ]\+:label\>%
syntax match muLiteral %[^ ]\+:type/[^ ,]*\|[^ ]\+:type\>%
syntax match muLiteral %[^ ]\+:offset/[^ ,]*\|[^ ]\+:offset\>%
syntax match muLiteral %[^ ]\+:variant/[^ ,]*\|[^ ]\+:variant\>%
syntax match muLiteral % true\(\/[^ ]*\)\?\| false\(\/[^ ]*\)\?% " literals will never be the first word in an instruction
syntax match muLiteral % null\(\/[^ ]*\)\?%
highlight link muLiteral Constant
syntax match muAssign " <- \|\<raw\>" | highlight link muAssign SpecialChar
" common keywords
syntax match muRecipe "^recipe\>\|^recipe!\>\|^def\>\|^def!\>\|^before\>\|^after\>\| -> " | highlight muRecipe ctermfg=208
syntax match muScenario "^scenario\>" | highlight muScenario ctermfg=34
syntax match muPendingScenario "^pending-scenario\>" | highlight link muPendingScenario SpecialChar
syntax match muData "^type\>\|^container\>\|^exclusive-container\>" | highlight muData ctermfg=226
syntax match subxString %"[^"]*"% | highlight link subxString Constant
" match globals but not registers like 'EAX'
syntax match subxGlobal %\<[A-Z][a-z0-9_-]*\>% | highlight link subxGlobal SpecialChar
endfunction
augroup LocalVimrc
autocmd BufRead,BufNewFile *.mu set ft=mu
autocmd BufRead,BufNewFile *.cc call HighlightTangledFile()
augroup END
" Scenarios considered:
" opening or starting vim with a new or existing file without an extension (should interpret as C++)
" opening or starting vim with a new or existing file with a .mu extension
" starting vim or opening a buffer without a file name (ok to do nothing)
" opening a second file in a new or existing window (shouldn't mess up existing highlighting)
" reloading an existing file (shouldn't mess up existing highlighting)
" assumes CWD is subx/
command! -nargs=1 E call EditSubx("edit", <f-args>)
if exists("&splitvertical")
command! -nargs=1 S call EditSubx("vert split", <f-args>)
command! -nargs=1 H call EditSubx("hor split", <f-args>)
else
command! -nargs=1 S call EditSubx("vert split", <f-args>)
command! -nargs=1 H call EditSubx("split", <f-args>)
endif
function! EditSubx(cmd, arg)
exec "silent! " . a:cmd . " " . SubxPath(a:arg)
endfunction
function! SubxPath(arg)
if a:arg =~ "^ex"
return "examples/" . a:arg . ".subx"
else
return "apps/" . a:arg . ".subx"
endif
endfunction
" we often want to crib lines of machine code from other files
function! GrepSubX(regex)
" https://github.com/mtth/scratch.vim
Scratch!
silent exec "r !grep -h '".a:regex."' *.subx */*.subx"
endfunction
command! -nargs=1 G call GrepSubX(<q-args>)
" temporary helpers while we port https://github.com/akkartik/crenshaw to apps/crenshaw*.subx
command! -nargs=1 C exec "E crenshaw".<f-args>
command! -nargs=1 CS exec "S crenshaw".<f-args>
command! -nargs=1 CH exec "H crenshaw".<f-args>
function! Orig()
let l:p = expand("%:t:r")
if l:p =~ "^crenshaw\\d*-\\d*$"
exec "vert split crenshaw/tutor" . substitute(expand("%:t:r"), "^crenshaw\\(\\d*\\)-\\(\\d*\\)$", "\\1.\\2", "") . ".pas"
endif
endfunction
command! O call Orig()
if exists("&splitvertical")
command! -nargs=0 P hor split opcodes
else
command! -nargs=0 P split opcodes
endif
" useful for inspecting just the control flow in a trace
" see https://github.com/akkartik/mu/blob/master/subx/Readme.md#a-few-hints-for-debugging
" the '-a' is because traces can sometimes contain unprintable characters that bother grep
command! -nargs=0 L exec "%!grep -a label"
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