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" Vim syntax file " Language: Modula-2 (PIM) " Maintainer: B.Kowarsch <trijezdci@moc.liamg> " Last Change: 2016 August 22 " ---------------------------------------------------- " THIS FILE IS LICENSED UNDER THE VIM LICENSE " see https://github.com/vim/vim/blob/master/LICENSE " ---------------------------------------------------- " Remarks: " Vim Syntax files are available for the following Modula-2 dialects: " * for the PIM dialect : m2pim.vim (this file) " * for the ISO dialect : m2iso.vim " * for the R10 dialect : m2r10.vim " ----------------------------------------------------------------------------- " This syntax description follows the 3rd and 4th editions of N.Wirth's Book " Programming in Modula-2 (aka PIM) plus the following language extensions: " * non-leading, non-trailing, non-consecutive lowlines _ in identifiers " * widely supported non-standard types BYTE, LONGCARD and LONGBITSET " * non-nesting code disabling tags ?< and >? at the start of a line " ----------------------------------------------------------------------------- " Parameters: " " Vim's filetype script recognises Modula-2 dialect tags within the first 200 " lines of Modula-2 .def and .mod input files. The script sets filetype and " dialect automatically when a valid dialect tag is found in the input file. " The dialect tag for the PIM dialect is (*!m2pim*). It is recommended to put " the tag immediately after the module header in the Modula-2 input file. " " Example: " DEFINITION MODULE Foolib; (*!m2pim*) " " Variable g:modula2_default_dialect sets the default Modula-2 dialect when the " dialect cannot be determined from the contents of the Modula-2 input file: " if defined and set to 'm2pim', the default dialect is PIM. " " Variable g:modula2_pim_allow_lowline controls support for lowline in identifiers: " if defined and set to a non-zero value, they are recognised, otherwise not " " Variable g:modula2_pim_disallow_octals controls the rendering of octal literals: " if defined and set to a non-zero value, they are rendered as errors. " " Variable g:modula2_pim_disallow_synonyms controls the rendering of & and ~: " if defined and set to a non-zero value, they are rendered as errors. " " Variables may be defined in Vim startup file .vimrc " " Examples: " let g:modula2_default_dialect = 'm2pim' " let g:modula2_pim_allow_lowline = 1 " let g:modula2_pim_disallow_octals = 1 " let g:modula2_pim_disallow_synonyms = 1 if exists("b:current_syntax") finish endif " Modula-2 is case sensitive syn case match " ----------------------------------------------------------------------------- " Reserved Words " ----------------------------------------------------------------------------- syn keyword modula2Resword AND ARRAY BEGIN BY CASE CONST DEFINITION DIV DO ELSE syn keyword modula2Resword ELSIF EXIT EXPORT FOR FROM IF IMPLEMENTATION IMPORT syn keyword modula2Resword IN LOOP MOD NOT OF OR POINTER QUALIFIED RECORD REPEAT syn keyword modula2Resword RETURN SET THEN TO TYPE UNTIL VAR WHILE WITH " ----------------------------------------------------------------------------- " Builtin Constant Identifiers " ----------------------------------------------------------------------------- syn keyword modula2ConstIdent FALSE NIL TRUE " ----------------------------------------------------------------------------- " Builtin Type Identifiers " ----------------------------------------------------------------------------- syn keyword modula2TypeIdent BITSET BOOLEAN CHAR PROC syn keyword modula2TypeIdent CARDINAL INTEGER LONGINT REAL LONGREAL " ----------------------------------------------------------------------------- " Builtin Procedure and Function Identifiers " ----------------------------------------------------------------------------- syn keyword modula2ProcIdent CAP DEC EXCL HALT INC INCL syn keyword modula2FuncIdent ABS CHR FLOAT HIGH MAX MIN ODD ORD SIZE TRUNC VAL " ----------------------------------------------------------------------------- " Wirthian Macro Identifiers " ----------------------------------------------------------------------------- syn keyword modula2MacroIdent NEW DISPOSE " ----------------------------------------------------------------------------- " Unsafe Facilities via Pseudo-Module SYSTEM " ----------------------------------------------------------------------------- syn keyword modula2UnsafeIdent ADDRESS PROCESS WORD syn keyword modula2UnsafeIdent ADR TSIZE NEWPROCESS TRANSFER SYSTEM " ----------------------------------------------------------------------------- " Non-Portable Language Extensions " ----------------------------------------------------------------------------- syn keyword modula2NonPortableIdent BYTE LONGCARD LONGBITSET " ----------------------------------------------------------------------------- " User Defined Identifiers " ----------------------------------------------------------------------------- syn match modula2Ident "[a-zA-Z][a-zA-Z0-9]*\(_\)\@!" syn match modula2LowLineIdent "[a-zA-Z][a-zA-Z0-9]*\(_[a-zA-Z0-9]\+\)\+" " ----------------------------------------------------------------------------- " String Literals " ----------------------------------------------------------------------------- syn region modula2String start=/"/ end=/"/ oneline syn region modula2String start=/'/ end=/'/ oneline " ----------------------------------------------------------------------------- " Numeric Literals " ----------------------------------------------------------------------------- syn match modula2Num \ "\(\([0-7]\+\)[BC]\@!\|[89]\)[0-9]*\(\.[0-9]\+\([eE][+-]\?[0-9]\+\)\?\)\?" syn match modula2Num "[0-9A-F]\+H" syn match modula2Octal "[0-7]\+[BC]" " ----------------------------------------------------------------------------- " Punctuation " ----------------------------------------------------------------------------- syn match modula2Punctuation \ "\.\|[,:;]\|\*\|[/+-]\|\#\|[=<>]\|\^\|\[\|\]\|(\(\*\)\@!\|[){}]" syn match modula2Synonym "[&~]" " ----------------------------------------------------------------------------- " Pragmas " ----------------------------------------------------------------------------- syn region modula2Pragma start="(\*\$" end="\*)" syn match modula2DialectTag "(\*!m2pim\(+[a-z0-9]\+\)\?\*)" " ----------------------------------------------------------------------------- " Block Comments " ----------------------------------------------------------------------------- syn region modula2Comment start="(\*\(\$\|!m2pim\(+[a-z0-9]\+\)\?\*)\)\@!" end="\*)" \ contains = modula2Comment, modula2CommentKey, modula2TechDebtMarker syn match modula2CommentKey "[Aa]uthor[s]\?\|[Cc]opyright\|[Ll]icense\|[Ss]ynopsis" syn match modula2CommentKey "\([Pp]re\|[Pp]ost\|[Ee]rror\)\-condition[s]\?:" " ----------------------------------------------------------------------------- " Technical Debt Markers " ----------------------------------------------------------------------------- syn keyword modula2TechDebtMarker contained DEPRECATED FIXME syn match modula2TechDebtMarker "TODO[:]\?" contained " ----------------------------------------------------------------------------- " Disabled Code Sections " ----------------------------------------------------------------------------- syn region modula2DisabledCode start="^?<" end="^>?" " ----------------------------------------------------------------------------- " Headers " ----------------------------------------------------------------------------- " !!! this section must be second last !!! " new module header syn match modula2ModuleHeader \ "MODULE\( [A-Z][a-zA-Z0-9]*\)\?" \ contains = modula2ReswordModule, modula2ModuleIdent syn match modula2ModuleIdent \ "[A-Z][a-zA-Z0-9]*" contained syn match modula2ModuleTail \ "END [A-Z][a-zA-Z0-9]*\.$" \ contains = modula2ReswordEnd, modula2ModuleIdent, modula2Punctuation " new procedure header syn match modula2ProcedureHeader \ "PROCEDURE\( [a-zA-Z][a-zA-Z0-9]*\(_[a-zA-Z0-9]\+\)*\)\?" \ contains = modula2ReswordProcedure, \ modula2ProcedureIdent, modula2ProcedureLowlineIdent, modula2IllegalChar, modula2IllegalIdent syn match modula2ProcedureIdent \ "\([a-zA-Z]\)\([a-zA-Z0-9]*\)" contained syn match modula2ProcedureLowlineIdent \ "[a-zA-Z][a-zA-Z0-9]*\(_[a-zA-Z0-9]\+\)\+" contained syn match modula2ProcedureTail \ "END\( \([a-zA-Z][a-zA-Z0-9]*\(_[a-zA-Z0-9]\+\)*\)[.;]$\)\?" \ contains = modula2ReswordEnd, \ modula2ProcedureIdent, modula2ProcedureLowLineIdent, \ modula2Punctuation, modula2IllegalChar, modula2IllegalIdent syn keyword modula2ReswordModule contained MODULE syn keyword modula2ReswordProcedure contained PROCEDURE syn keyword modula2ReswordEnd contained END " ----------------------------------------------------------------------------- " Illegal Symbols " ----------------------------------------------------------------------------- " !!! this section must be last !!! " any '`' '!' '@ ''$' '%' or '\' syn match modula2IllegalChar "[`!@$%\\]" " any solitary sequence of '_' syn match modula2IllegalChar "\<_\+\>" " any '?' at start of line if not followed by '<' syn match modula2IllegalChar "^?\(<\)\@!" " any '?' not following '>' at start of line syn match modula2IllegalChar "\(\(^>\)\|\(^\)\)\@<!?" " any identifiers with leading occurrences of '_' syn match modula2IllegalIdent "_\+[a-zA-Z][a-zA-Z0-9]*\(_\+[a-zA-Z0-9]*\)*" " any identifiers containing consecutive occurences of '_' syn match modula2IllegalIdent \ "[a-zA-Z][a-zA-Z0-9]*\(_[a-zA-Z0-9]\+\)*\(__\+[a-zA-Z0-9]\+\(_[a-zA-Z0-9]\+\)*\)\+" " any identifiers with trailing occurrences of '_' syn match modula2IllegalIdent "[a-zA-Z][a-zA-Z0-9]*\(_\+[a-zA-Z0-9]\+\)*_\+\>" " ----------------------------------------------------------------------------- " Define Rendering Styles " ----------------------------------------------------------------------------- " highlight default link modula2PredefIdentStyle Keyword " highlight default link modula2ConstIdentStyle modula2PredefIdentStyle " highlight default link modula2TypeIdentStyle modula2PredefIdentStyle " highlight default link modula2ProcIdentStyle modula2PredefIdentStyle " highlight default link modula2FuncIdentStyle modula2PredefIdentStyle " highlight default link modula2MacroIdentStyle modula2PredefIdentStyle highlight default link modula2ConstIdentStyle Constant highlight default link modula2TypeIdentStyle Type highlight default link modula2ProcIdentStyle Function highlight default link modula2FuncIdentStyle Function highlight default link modula2MacroIdentStyle Function highlight default link modula2UnsafeIdentStyle Question highlight default link modula2NonPortableIdentStyle Question highlight default link modula2StringLiteralStyle String highlight default link modula2CommentStyle Comment highlight default link modula2PragmaStyle PreProc highlight default link modula2DialectTagStyle SpecialComment highlight default link modula2TechDebtMarkerStyle SpecialComment highlight default link modula2ReswordStyle Keyword highlight default link modula2HeaderIdentStyle Function highlight default link modula2UserDefIdentStyle Normal highlight default link modula2NumericLiteralStyle Number highlight default link modula2PunctuationStyle Delimiter highlight default link modula2CommentKeyStyle SpecialComment highlight default link modula2DisabledCodeStyle NonText " ----------------------------------------------------------------------------- " Assign Rendering Styles " ----------------------------------------------------------------------------- " headers highlight default link modula2ModuleIdent modula2HeaderIdentStyle highlight default link modula2ProcedureIdent modula2HeaderIdentStyle highlight default link modula2ModuleHeader Normal highlight default link modula2ModuleTail Normal highlight default link modula2ProcedureHeader Normal highlight default link modula2ProcedureTail Normal " lowline identifiers are rendered as errors if g:modula2_pim_allow_lowline is unset if exists("g:modula2_pim_allow_lowline") if g:modula2_pim_allow_lowline != 0 highlight default link modula2ProcedureLowlineIdent modula2HeaderIdentStyle else highlight default link modula2ProcedureLowlineIdent Error endif else highlight default link modula2ProcedureLowlineIdent Error endif " reserved words highlight default link modula2Resword modula2ReswordStyle highlight default link modula2ReswordModule modula2ReswordStyle highlight default link modula2ReswordProcedure modula2ReswordStyle highlight default link modula2ReswordEnd modula2ReswordStyle " predefined identifiers highlight default link modula2ConstIdent modula2ConstIdentStyle highlight default link modula2TypeIdent modula2TypeIdentStyle highlight default link modula2ProcIdent modula2ProcIdentStyle highlight default link modula2FuncIdent modula2FuncIdentStyle highlight default link modula2MacroIdent modula2MacroIdentStyle " unsafe and non-portable identifiers highlight default link modula2UnsafeIdent modula2UnsafeIdentStyle highlight default link modula2NonPortableIdent modula2NonPortableIdentStyle " user defined identifiers highlight default link modula2Ident modula2UserDefIdentStyle " lowline identifiers are rendered as errors if g:modula2_pim_allow_lowline is unset if exists("g:modula2_pim_allow_lowline") if g:modula2_pim_allow_lowline != 0 highlight default link modula2LowLineIdent modula2UserDefIdentStyle else highlight default link modula2LowLineIdent Error endif else highlight default link modula2LowLineIdent Error endif " literals highlight default link modula2String modula2StringLiteralStyle highlight default link modula2Num modula2NumericLiteralStyle " octal literals are rendered as errors if g:modula2_pim_disallow_octals is set if exists("g:modula2_pim_disallow_octals") if g:modula2_pim_disallow_octals != 0 highlight default link modula2Octal Error else highlight default link modula2Octal modula2NumericLiteralStyle endif else highlight default link modula2Octal modula2NumericLiteralStyle endif " punctuation highlight default link modula2Punctuation modula2PunctuationStyle " synonyms & and ~ are rendered as errors if g:modula2_pim_disallow_synonyms is set if exists("g:modula2_pim_disallow_synonyms") if g:modula2_pim_disallow_synonyms != 0 highlight default link modula2Synonym Error else highlight default link modula2Synonym modula2PunctuationStyle endif else highlight default link modula2Synonym modula2PunctuationStyle endif " pragmas highlight default link modula2Pragma modula2PragmaStyle highlight default link modula2DialectTag modula2DialectTagStyle " comments highlight default link modula2Comment modula2CommentStyle highlight default link modula2CommentKey modula2CommentKeyStyle " technical debt markers highlight default link modula2TechDebtMarker modula2TechDebtMarkerStyle " disabled code highlight default link modula2DisabledCode modula2DisabledCodeStyle " illegal symbols highlight default link modula2IllegalChar Error highlight default link modula2IllegalIdent Error let b:current_syntax = "modula2" " vim: ts=4 " END OF FILE