syn match fortranConstructName "^\s\{6,}\zs\a\w*\ze\s*:"
else
syn match fortranConstructName "^\s*\zs\a\w*\ze\s*:"
endif
if exists("fortran_more_precise")
syn match fortranConstructName "\(\<end\s*do\s\+\)\@<=\a\w*"
syn match fortranConstructName "\(\<end\s*if\s\+\)\@<=\a\w*"
syn match fortranConstructName "\(\<end\s*select\s\+\)\@<=\a\w*"
endif
syn match fortranUnitHeader "\<end\>"
syn match fortranType "\<character\>"
syn match fortranType "\<complex\>"
syn match fortranType "\<integer\>"
syn keyword fortranType intrinsic
syn match fortranType "\<implicit\>"
syn keyword fortranStructure dimension
syn keyword fortranStorageClass parameter save
syn match fortranUnitHeader "\<subroutine\>"
syn keyword fortranCall call
syn match fortranUnitHeader "\<function\>"
syn match fortranUnitHeader "\<program\>"
syn keyword fortranKeyword return stop
syn keyword fortranConditional else then
syn match fortranConditional "\<if\>"
syn match fortranConditionalOb "\<if\s*(.*)\s*\d\+\s*,\s*\d\+\s*,\s*\d\+\s*$"
syn match fortranRepeat "\<do\>"
syn keyword fortranTodo contained todo fixme
"Catch errors caused by too many right parentheses
syn region fortranParen transparent start="(" end=")" contains=ALLBUT,fortranParenError,@fortranCommentGroup,cIncluded,@spell
syn match fortranParenError ")"
syn match fortranOperator "\.\s*n\=eqv\s*\."
syn match fortranOperator "\.\s*\(and\|or\|not\)\s*\."
syn match fortranOperator "\(+\|-\|/\|\*\)"
syn match fortranTypeOb "\<character\s*\*"
syn match fortranBoolean "\.\s*\(true\|false\)\s*\."
syn keyword fortranReadWrite backspace close endfile inquire open print read rewind write
"If tabs are allowed then the left margin checks do not work
if exists("fortran_have_tabs")
syn match fortranTab "\t" transparent
else
syn match fortranTab "\t"
endif
syn keyword fortranIO access blank direct exist file fmt form formatted iostat name named nextrec number opened rec recl sequential status unformatted unit
syn keyword fortranIntrinsic abs acos aimag aint anint asin atan atan2 char cmplx conjg cos cosh exp ichar index int log log10 max min nint sign sin sinh sqrt tan tanh
syn match fortranIntrinsic "\<len\s*[(,]"me=s+3
syn match fortranIntrinsic "\<real\s*("me=s+4
syn match fortranType "\<implicit\s\+real"
syn match fortranType "^\s*real\>"
syn match fortranIntrinsic "\<logical\s*("me=s+7
syn match fortranType "\<implicit\s\+logical"
syn match fortranType "^\s*logical\>"
"Numbers of various sorts
" Integers
syn match fortranNumber display "\<\d\+\(_\a\w*\)\=\>"
" floating point number, without a decimal point
syn match fortranFloatIll display "\<\d\+[deq][-+]\=\d\+\(_\a\w*\)\=\>"
" floating point number, starting with a decimal point
syn match fortranFloatIll display "\.\d\+\([deq][-+]\=\d\+\)\=\(_\a\w*\)\=\>"
" floating point number, no digits after decimal
syn match fortranFloatIll display "\<\d\+\.\([deq][-+]\=\d\+\)\=\(_\a\w*\)\=\>"
" floating point number, D or Q exponents
syn match fortranFloatIll display "\<\d\+\.\d\+\([dq][-+]\=\d\+\)\=\(_\a\w*\)\=\>"
" floating point number
syn match fortranFloat display "\<\d\+\.\d\+\(e[-+]\=\d\+\)\=\(_\a\w*\)\=\>"
" Numbers in formats
syn match fortranFormatSpec display "\d*f\d\+\.\d\+"
syn match fortranFormatSpec display "\d*e[sn]\=\d\+\.\d\+\(e\d+\>\)\="
syn match fortranFormatSpec display "\d*\(d\|q\|g\)\d\+\.\d\+\(e\d+\)\="
syn match fortranFormatSpec display "\d\+x\>"
" The next match cannot be used because it would pick up identifiers as well
" syn match fortranFormatSpec display "\<\(a\|i\)\d\+"
" Numbers as labels
syn match fortranLabelNumber display "^\d\{1,5}\s"me=e-1
syn match fortranLabelNumber display "^ \d\{1,4}\s"ms=s+1,me=e-1
syn match fortranLabelNumber display "^ \d\{1,3}\s"ms=s+2,me=e-1
syn match fortranLabelNumber display "^ \d\d\=\s"ms=s+3,me=e-1
syn match fortranLabelNumber display "^ \d\s"ms=s+4,me=e-1
if exists("fortran_more_precise")
" Numbers as targets
syn match fortranTarget display "\(\<if\s*(.\+)\s*\)\@<=\(\d\+\s*,\s*\)\{2}\d\+\>"
syn match fortranTarget display "\(\<do\s\+\)\@<=\d\+\>"
syn match fortranTarget display "\(\<go\s*to\s*(\=\)\@<=\(\d\+\s*,\s*\)*\d\+\>"
endif
syn keyword fortranTypeR external
syn keyword fortranIOR format
syn match fortranKeywordR "\<continue\>"
syn match fortranKeyword "^\s*\d\+\s\+continue\>"
syn match fortranKeyword "\<go\s*to\>"
syn match fortranKeywordDel "\<go\s*to\ze\s\+.*,\s*(.*$"
syn match fortranKeywordOb "\<go\s*to\ze\s*(\d\+.*$"
syn region fortranStringR start=+'+ end=+'+ contains=fortranContinueMark,fortranLeftMargin,fortranSerialNumber
syn keyword fortranIntrinsicR dim lge lgt lle llt mod
syn keyword fortranKeywordDel assign pause
syn match fortranType "\<type\>"
syn keyword fortranType none
syn keyword fortranStructure private public intent optional
syn keyword fortranStructure pointer target allocatable
syn keyword fortranStorageClass in out
syn match fortranStorageClass "\<kind\s*="me=s+4
syn match fortranStorageClass "\<len\s*="me=s+3
syn match fortranUnitHeader "\<module\>"
syn keyword fortranUnitHeader use only contains
syn keyword fortranUnitHeader result operator assignment
syn match fortranUnitHeader "\<interface\>"
syn match fortranUnitHeader "\<recursive\>"
syn keyword fortranKeyword allocate deallocate nullify cycle exit
syn match fortranConditional "\<select\>"
syn keyword fortranConditional case default where elsewhere
syn match fortranOperator "\(\(>\|<\)=\=\|==\|/=\|=\)"
syn match fortranOperator "=>"
syn region fortranString start=+"+ end=+"+ contains=fortranLeftMargin,fortranContinueMark,fortranSerialNumber
syn keyword fortranIO pad position action delim readwrite
syn region fortranSubroutine transparent fold keepend extend start="^\s*\(elemental \|pure \|recursive \)\=\s*subroutine\s\+\z(\a\w*\)" skip="^\s*[!#].*$" excludenl end="\<end\s*\($\|subroutine\(\s\+\z1\>\)\=\)" contains=ALLBUT,fortranProgram,fortranModule
syn region fortranBlockData transparent fold keepend start="\<block\s*data\(\s\+\z(\a\w*\)\)\=" skip="^\s*[!#].*$" excludenl end="\<end\s*\($\|block\s*data\(\s\+\z1\>\)\=\)" contains=ALLBUT,fortranProgram,fortranModule,fortranSubroutine,fortranFunction,fortran77Loop,fortranCase,fortran90Loop,fortranIfBlock
syn region fortranInterface transparent fold keepend extend start="^\s*interface\>" skip="^\s*[!#].*$" excludenl end="\<end\s*interface\>" contains=ALLBUT,fortranProgram,fortranModule,fortran77Loop,fortranCase,fortran90Loop,fortranIfBlock
syn region fortranTypeDef transparent fold keepend extend start="^\s*type\s*\(,\s*\(public\|private\)\)\=\s*::" skip="^\s*[!#].*$" excludenl end="\<end\s*type\>" contains=ALLBUT,fortranProgram,fortranModule,fortran77Loop,fortranCase,fortran90Loop,fortranIfBlock
endif
if exists("fortran_fold_conditionals")
if (b:fortran_fixed_source == 1)
syn region fortran77Loop transparent fold keepend start="\<do\s\+\z(\d\+\)" end="^\s*\z1\>" contains=ALLBUT,fortranUnitHeader,fortranStructure,fortranStorageClass,fortranType,fortranProgram,fortranModule,fortranSubroutine,fortranFunction,fortranBlockData
syn region fortran90Loop transparent fold keepend extend start="\(\<end\s\+\)\@<!\<do\(\s\+\a\|\s*$\)" skip="^\([!c*]\|\s*#\).*$" excludenl end="\<end\s*do\>" contains=ALLBUT,fortranUnitHeader,fortranStructure,fortranStorageClass,fortranType,fortranProgram,fortranModule,fortranSubroutine,fortranFunction,fortranBlockData
syn region fortranIfBlock transparent fold keepend extend start="\(\<e\(nd\|lse\)\s\+\)\@<!\<if\s*(.\+)\s*then\>" skip="^\([!c*]\|\s*#\).*$" end="\<end\s*if\>" contains=ALLBUT,fortranUnitHeader,fortranStructure,fortranStorageClass,fortranType,fortranProgram,fortranModule,fortranSubroutine,fortranFunction,fortranBlockData
syn region fortranCase transparent fold keepend extend start="\<select\s*case\>" skip="^\([!c*]\|\s*#\).*$" end="\<end\s*select\>" contains=ALLBUT,fortranUnitHeader,fortranStructure,fortranStorageClass,fortranType,fortranProgram,fortranModule,fortranSubroutine,fortranFunction,fortranBlockData
else
syn region fortran77Loop transparent fold keepend start="\<do\s\+\z(\d\+\)" end="^\s*\z1\>" contains=ALLBUT,fortranUnitHeader,fortranStructure,fortranStorageClass,fortranType,fortranProgram,fortranModule,fortranSubroutine,fortranFunction,fortranBlockData
syn region fortran90Loop transparent fold keepend extend start="\(\<end\s\+\)\@<!\<do\(\s\+\a\|\s*$\)" skip="^\s*[!#].*$" excludenl end="\<end\s*do\>" contains=ALLBUT,fortranUnitHeader,fortranStructure,fortranStorageClass,fortranType,fortranProgram,fortranModule,fortranSubroutine,fortranFunction,fortranBlockData
syn region fortranIfBlock transparent fold keepend extend start="\(\<e\(nd\|lse\)\s\+\)\@<!\<if\s*(.\+)\s*then\>" skip="^\s*[!#].*$" end="\<end\s*if\>" contains=ALLBUT,fortranUnitHeader,fortranStructure,fortranStorageClass,fortranType,fortranProgram,fortranModule,fortranSubroutine,fortranFunction,fortranBlockData
syn region fortranCase transparent fold keepend extend start="\<select\s*case\>" skip="^\s*[!#].*$" end="\<end\s*select\>" contains=ALLBUT,fortranUnitHeader,fortranStructure,fortranStorageClass,fortranType,fortranProgram,fortranModule,fortranSubroutine,fortranFunction,fortranBlockData
endif
endif
if exists("fortran_fold_multilinecomments")
if (b:fortran_fixed_source == 1)
syn match fortranMultiLineComments transparent fold "\(^[!c*].*\(\n\|\%$\)\)\{4,}" contains=ALLBUT,fortranMultiCommentLines
else
syn match fortranMultiLineComments transparent fold "\(^\s*!.*\(\n\|\%$\)\)\{4,}" contains=ALLBUT,fortranMultiCommentLines
endif
endif
endif
" Define the default highlighting.
" The default highlighting differs for each dialect.