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fortran.vim (36121B)


      1 " Vim syntax file
      2 " Language:	Fortran 2023 (and Fortran 2018, 2008, 2003, 95, 90, and 77)
      3 " Version:	(v113) 2024 February 01
      4 " Maintainers:	Ajit J. Thakkar <ajit@unb.ca>; <https://ajit.ext.unb.ca/>
      5 " 	        Joshua Hollett <j.hollett@uwinnipeg.ca>
      6 " Usage:	For instructions, do :help fortran-syntax from Vim
      7 " Credits:
      8 "  Version 0.1 for Fortran 95 was created in April 2000 by Ajit Thakkar from an
      9 "  older Fortran 77 syntax file by Mario Eusebio and Preben Guldberg.
     10 "  Since then, useful suggestions and contributions have been made, in order, by:
     11 "  Andrej Panjkov, Bram Moolenaar, Thomas Olsen, Michael Sternberg, Christian Reile,
     12 "  Walter Dieudonne, Alexander Wagner, Roman Bertle, Charles Rendleman,
     13 "  Andrew Griffiths, Joe Krahn, Hendrik Merx, Matt Thompson, Jan Hermann,
     14 "  Stefano Zaghi, Vishnu V. Krishnan, Judicael Grasset, Takuma Yoshida,
     15 "  Eisuke Kawashima, Andre Chalella, Fritz Reese, Karl D. Hammond,
     16 "  and Michele Esposito Marzino.
     17 
     18 if exists("b:current_syntax")
     19  finish
     20 endif
     21 
     22 let s:cpo_save = &cpo
     23 set cpo&vim
     24 
     25 " Choose between fixed and free source form if this hasn't been done yet
     26 if !exists("b:fortran_fixed_source")
     27  if exists("fortran_free_source")
     28    " User guarantees free source form for all Fortran files
     29    let b:fortran_fixed_source = 0
     30  elseif exists("fortran_fixed_source")
     31    " User guarantees fixed source form for all fortran files
     32    let b:fortran_fixed_source = 1
     33  elseif expand("%:e") =~? '^f\%(90\|95\|03\|08\)$'
     34    " Free-form file extension defaults as in Intel ifort, gcc(gfortran), NAG, Pathscale, and Cray compilers
     35    let b:fortran_fixed_source = 0
     36  elseif expand("%:e") =~? '^\%(f\|f77\|for\)$'
     37    " Fixed-form file extension defaults
     38    let b:fortran_fixed_source = 1
     39  else
     40    " Modern Fortran compilers still allow both free and fixed source form.
     41    " Assume fixed source form unless signs of free source form
     42    " are detected in the first five columns of the first s:lmax lines.
     43    " Detection becomes more accurate and time-consuming if more lines
     44    " are checked. Increase the limit below if you keep lots of comments at
     45    " the very top of each file and you have a fast computer.
     46    let s:lmax = 500
     47    if ( s:lmax > line("$") )
     48      let s:lmax = line("$")
     49    endif
     50    let b:fortran_fixed_source = 1
     51    let s:ln=1
     52    while s:ln <= s:lmax
     53      let s:test = strpart(getline(s:ln),0,5)
     54      if s:test !~ '^[Cc*]' && s:test !~ '^ *[!#]' && s:test =~ '[^ 0-9\t]' && s:test !~ '^[ 0-9]*\t'
     55        let b:fortran_fixed_source = 0
     56        break
     57      endif
     58      let s:ln = s:ln + 1
     59    endwhile
     60    unlet! s:lmax s:ln s:test
     61  endif
     62 endif
     63 
     64 " Group names ending in 'Del' and 'Ob', respectively, indicate features deleted and obsolescent in Fortran 2018 and later
     65 " Deleted features are highlighted as errors
     66 " Obsolescent features are highlighted as todo items
     67 syn case ignore
     68 
     69 if b:fortran_fixed_source == 1
     70  syn match fortranConstructName	"^\s\{6,}\zs\a\w*\ze\s*:"
     71 else
     72  syn match fortranConstructName	"^\s*\zs\a\w*\ze\s*:"
     73 endif
     74 syn match fortranConstructName          "\%(\<end\s*do\s\+\)\@11<=\a\w*"
     75 syn match fortranConstructName          "\%(\<end\s*if\s\+\)\@11<=\a\w*"
     76 syn match fortranConstructName          "\%(\<end\s*select\s\+\)\@15<=\a\w*"
     77 syn match fortranConstructName          "\%(\<end\s*where\s\+\)\@14<=\a\w*"
     78 syn match fortranConstructName          "\%(\<end\s*block\s\+\)\@14<=\a\w*"
     79 syn match fortranConstructName          "\%(\<\%(exit\|cycle\)\s\+\)\@11<=\a\w*"
     80 syn match fortranConstructName          "\%(\<end\s*forall\s\+\)\@15<=\a\w*\>"
     81 syn match fortranConstructName          "\%(\<end\s*critical\s\+\)\@17<=\a\w*\>"
     82 syn match fortranConstructName          "\%(\<end\s*associate\s\+\)\@18<=\a\w*\>"
     83 
     84 syn match fortranUnitName               "\%(\<\%(end\s*\)\?\%(subroutine\|function\|module\|program\|submodule\)\s\+\)\@12<=\a\w*"
     85 syn match fortranUnitHeader             "\<end\>\ze\s*\%(!.*\)\?$"
     86 
     87 syn keyword fortranIntrinsic	abs acos aimag aint anint asin atan atan2 cmplx conjg cos cosh exp ichar index int log log10 max min nint sin sinh sqrt tan tanh
     88 syn keyword fortranIntrinsicR	achar iachar transfer dble dprod dim lge lgt lle llt mod
     89 syn keyword fortranIntrinsic    command_argument_count get_command get_command_argument get_environment_variable is_iostat_end is_iostat_eor move_alloc new_line same_type_as extends_type_of
     90 syn keyword fortranIntrinsic    selected_real_kind selected_int_kind selected_logical_kind selected_char_kind next previous
     91 syn keyword fortranIntrinsic    acosh asinh atanh bessel_j0 bessel_j1 bessel_jn bessel_y0 bessel_y1 bessel_yn erf erfc erfc_scaled gamma log_gamma hypot norm2
     92 syn keyword fortranIntrinsic    adjustl adjustr all allocated any associated bit_size btest ceiling cshift date_and_time digits
     93 syn keyword fortranIntrinsic    dot_product eoshift exponent floor fraction iand ibclr ibits ibset ieor ior ishft ishftc lbound len_trim matmul maxexponent maxloc merge minexponent minloc
     94 syn keyword fortranIntrinsic    modulo mvbits nearest pack precision present radix random_number random_seed range repeat reshape rrspacing scale scan set_exponent shape spacing
     95 " intrinsic names often used for variables in older Fortran code
     96 syn match fortranIntrinsic      '\<\%(count\|epsilon\|maxval\|minval\|product\|sum\|huge\|tiny\|char\)\>\ze\s*('
     97 syn keyword fortranIntrinsic    spread system_clock transpose trim ubound unpack verify is_contiguous event_query
     98 syn keyword fortranIntrinsic    atomic_define atomic_ref execute_command_line leadz trailz storage_size merge_bits
     99 syn keyword fortranIntrinsic    bge bgt ble blt dshiftl dshiftr findloc iall iany iparity image_index lcobound ucobound maskl maskr num_images parity popcnt poppar shifta shiftl shiftr this_image
    100 syn keyword fortranIntrinsic    null cpu_time failed_images stopped_images image_status co_broadcast co_max co_min co_sum co_reduce
    101 syn keyword fortranIntrinsic    atomic_add atomic_and atomic_or atomic_xor atomic_fetch_add atomic_fetch_and atomic_fetch_or atomic_fetch_xor atomic_cas
    102 syn keyword fortranIntrinsic    ieee_arithmetic ieee_features ieee_exceptions
    103 syn keyword fortranIntrinsic	ieee_class ieee_copy_sign ieee_fma ieee_get_rounding_mode ieee_get_underflow_mode ieee_int ieee_is_finite
    104 syn keyword fortranIntrinsic	ieee_is_nan ieee_is_negative ieee_is_normal ieee_logb ieee_max ieee_max_mag ieee_max_num ieee_max_num_mag
    105 syn keyword fortranIntrinsic	ieee_min ieee_min_mag ieee_min_num ieee_min_num_mag ieee_next_after ieee_next_down ieee_next_up ieee_quiet_eq
    106 syn keyword fortranIntrinsic	ieee_quiet_ge ieee_quiet_gt ieee_quiet_le ieee_quiet_lt ieee_quiet_ne ieee_real ieee_rem ieee_rint ieee_scalb
    107 syn keyword fortranIntrinsic	ieee_selected_real_kind ieee_set_rounding_mode ieee_set_underflow_mode ieee_signaling_eq ieee_signaling_ge
    108 syn keyword fortranIntrinsic	ieee_signaling_gt ieee_signaling_le ieee_signaling_lt ieee_signaling_ne ieee_signbit ieee_support_datatype
    109 syn keyword fortranIntrinsic	ieee_support_denormal ieee_support_divide ieee_support_inf ieee_support_io ieee_support_nan ieee_support_rounding
    110 syn keyword fortranIntrinsic	ieee_support_sqrt ieee_support_subnormal ieee_support_standard ieee_support_underflow_control
    111 syn keyword fortranIntrinsic	ieee_unordered ieee_value ieee_get_flag ieee_get_halting_mode ieee_get_modes ieee_get_status
    112 syn keyword fortranIntrinsic	ieee_set_flag ieee_set_halting_mode ieee_set_modes ieee_set_status ieee_support_flag ieee_support_halting
    113 syn keyword fortranIntrinsic    iso_c_binding c_loc c_funloc c_sizeof c_associated c_f_pointer c_f_procpointer c_f_strpointer f_c_string
    114 syn keyword fortranIntrinsic    iso_fortran_env compiler_options compiler_version
    115 syn keyword fortranIntrinsic	out_of_range reduce random_init coshape get_team split tokenize
    116 syn keyword fortranIntrinsic    acosd asind atand atan2d cosd sind tand acospi asinpi atanpi atan2pi cospi sinpi tanpi
    117 syn match fortranIntrinsic      "\%(^\s*\|type *is *(\s*\)\@12<!\<real\ze\s*("
    118 syn match fortranIntrinsic      '\<\%(logical\|not\|len\|kind\|rank\)\>\ze\s*('
    119 syn match fortranIntrinsic      '\<\%(sign\|size\|team_number\)\>\ze\s*('
    120 " Obsolescent type-specific intrinsics
    121 syn keyword fortranIntrinsicOb	alog alog10 amax0 amax1 amin0 amin1 amod cabs ccos cexp clog csin csqrt dabs dacos dasin datan datan2 dcos dcosh ddim dexp dint dlog dlog10 dmax1 dmin1 dmod dnint dsign dsin dsinh dsqrt dtan dtanh float iabs idim idint idnint ifix isign max0 max1 min0 min1 sngl
    122 if exists("fortran_vendor_intrinsics")
    123  syn keyword fortranIntrinsicVen	algama cdabs cdcos cdexp cdlog cdsin cdsqrt cqabs cqcos cqexp cqlog cqsin cqsqrt dcmplx dconjg derf derfc dfloat dgamma dimag dlgama iqint qabs qacos qasin qatan qatan2 qcmplx qconjg qcos qcosh qdim qerf qerfc qexp qgamma qimag qlgama qlog qlog10 qmax1 qmin1 qmod qnint qsign qsin qsinh qsqrt qtan qtanh
    124 endif
    125 
    126 syn keyword fortranType         generic final enumerator import classof typeof team_type event_type lock_type notify_type
    127 syn keyword fortranType 	ieee_flag_type ieee_modes_type ieee_status_type ieee_class_type ieee_round_type ieee_features_type
    128 syn keyword fortranType         c_ptr c_funptr elemental pure impure recursive non_recursive simple
    129 syn match fortranType           "^\s*\%(implicit\s\+\)\?\%(real\|double\s*precision\|integer\|logical\|complex\|character\|type\)\>"
    130 syn match fortranTypeOb         "^\s*\%(character\s*\)\@15<=\*"
    131 syn match fortranType           "^\s*\zsimplicit\s\+none\>"
    132 syn match fortranType           "\<class\>"
    133 syn match fortranType           "\%(\<type\s\+is\s\+[(]\s*\)\@15<=\%(real\|double\s*precision\|integer\|logical\|complex\|character\)\>"
    134 syn match fortranType           "\<\%(end\s*\)\?interface\>"
    135 syn match fortranType           "\<enum\s*,\s*bind\s*(\s*c\s*)"
    136 syn match fortranType           "\<end\s*\%(enum\|type\)\>"
    137 syn match fortranType           "\<\%(end\s*\)\?enumeration\s\+type\>"
    138 syn match fortranType           "\<\%(end\s*\)\?\%(module\s\+\)\?procedure\>"
    139 syn match fortranType           "\%(simple \|pure \|impure \|recursive \|non_recursive \|elemental \|module \)\@17<=\%(real\|double precision\|integer\|logical\|complex\|character\)"
    140 syn match fortranTypeR	       	display "\<double\s*precision\>"
    141 syn match fortranTypeR  	display "\<double\s\+complex\>"
    142 syn keyword fortranAttribute    abstract allocatable bind codimension contiguous deferred dimension extends
    143 syn keyword fortranAttribute    external intent intrinsic non_intrinsic non_overridable nopass optional parameter pass
    144 syn keyword fortranAttribute    pointer private protected public save sequence target value volatile
    145 syn match fortranAttribute      "\<asynchronous\>\ze\s*\%(::\|,\|(\)"
    146 
    147 syn keyword fortranUnitHeader	result operator assignment
    148 syn match fortranUnitHeader     "\<\%(end\s*\)\?\%(subroutine\|function\|module\|program\|submodule\)\>"
    149 syn match fortranBlock          "\<\%(end\s*\)\?\%(block\|critical\|associate\)\>"
    150 syn match fortranCalled		"\<\%(call\s\+\)\@7<=\a\w*"
    151 syn match fortranRepeat		"\<do\>"
    152 syn keyword fortranRepeat       concurrent
    153 syn keyword fortranRepeatR	while
    154 syn match fortranRepeat         "\<end\s*do\>"
    155 syn keyword fortranRepeatOb	forall
    156 syn match fortranRepeatOb	"\<end\s*forall\>"
    157 
    158 syn keyword fortranTodo		contained bug note debug todo fixme
    159 
    160 "Catch errors caused by too many right parentheses
    161 syn region fortranParen transparent start="(" end=")" contains=ALLBUT,fortranParenError,@fortranCommentGroup,cIncluded,@spell
    162 syn match  fortranParenError   ")"
    163 
    164 syn match fortranOperator	"\.\s*n\?eqv\s*\."
    165 syn match fortranOperator	"\.\s*\%(and\|or\|not\)\s*\."
    166 syn match fortranOperator	"\%(+\|-\|/\|\*\)"
    167 syn match fortranOperator	"\%(\%(>\|<\)=\?\|==\|/=\|=\)"
    168 syn match fortranOperator	"\%(%\|?\|=>\)"
    169 syn match fortranOperator       "\%([\|]\)"
    170 syn match fortranOperatorR	"\.\s*[gl][et]\s*\."
    171 syn match fortranOperatorR	"\.\s*\%(eq\|ne\)\s*\."
    172 
    173 syn keyword fortranReadWrite	print flush
    174 syn match fortranReadWrite	'\<\%(backspace\|close\|endfile\|inquire\|open\|read\|rewind\|wait\|write\)\ze\s*('
    175 
    176 "If tabs are allowed then the left margin checks do not work
    177 if exists("fortran_have_tabs")
    178  syn match fortranTab		"\t"  transparent
    179 else
    180  syn match fortranTab		"\t"
    181 endif
    182 
    183 "Numbers of various sorts
    184 " Integers
    185 syn match fortranNumber	display "\<\d\+\%(_\a\w*\)\?\>"
    186 " floating point number, without a decimal point
    187 syn match fortranFloatIll	display	"\<\d\+[deq][-+]\?\d\+\%(_\a\w*\)\?\>"
    188 " floating point number, starting with a decimal point
    189 syn match fortranFloatIll	display	"\.\d\+\%([deq][-+]\?\d\+\)\?\%(_\a\w*\)\?\>"
    190 " floating point number, no digits after decimal
    191 syn match fortranFloatIll	display	"\<\d\+\.\%([deq][-+]\?\d\+\)\?\%(_\a\w*\)\?\>"
    192 " floating point number, D or Q exponents
    193 syn match fortranFloatIll	display	"\<\d\+\.\d\+\%([dq][-+]\?\d\+\)\?\%(_\a\w*\)\?\>"
    194 " floating point number
    195 syn match fortranFloat	display	"\<\d\+\.\d\+\%(e[-+]\?\d\+\)\?\%(_\a\w*\)\?\>"
    196 " binary number
    197 syn match fortranBinary	display	"b["'][01]\+["']"
    198 " octal number
    199 syn match fortranOctal	display	"o["'][0-7]\+["']"
    200 " hexadecimal number
    201 syn match fortranHex	display	"z["'][0-9A-F]\+["']"
    202 " Numbers in formats
    203 syn match fortranFormatSpec	display	"\d*f\d\+\.\d\+"
    204 syn match fortranFormatSpec	display	"\d*e[sn]\?\d\+\.\d\+\%(e\d+\>\)\?"
    205 syn match fortranFormatSpec	display	"\d*\%(d\|q\|g\)\d\+\.\d\+\%(e\d+\)\?"
    206 syn match fortranFormatSpec	display	"\d\+x\>"
    207 " The next match cannot be used because it would pick up identifiers as well
    208 " syn match fortranFormatSpec	display	"\<\%(a\|i\)\d\+"
    209 " Numbers as labels
    210 if (b:fortran_fixed_source == 1)
    211  syn match fortranLabelNumber	display	"^\zs\d\{1,5}\ze\s"
    212  syn match fortranLabelNumber	display	"^ \zs\d\{1,4}\ze\s"
    213  syn match fortranLabelNumber	display	"^  \zs\d\{1,3}\ze\s"
    214  syn match fortranLabelNumber	display	"^   \zs\d\d\?\ze\s"
    215  syn match fortranLabelNumber	display	"^    \zs\d\ze\s"
    216 else
    217  syn match fortranLabelNumber	        display	"^\s*\zs\d\{1,5}\ze\s*\a"
    218  syn match fortranLabelNumberOb	display	"^\s*\zs\d\{1,5}\ze *end\s*\%(do\|if\)\>\ze"
    219 endif
    220 " Numbers as targets
    221 syn match fortranTarget 	display	"\%(\<if\s*(.\+)\s*\)\@<=\%(\d\+\s*,\s*\)\{2}\d\+\>"
    222 syn match fortranTargetOb	display	"\%(\<do\s*,\?\s*\)\@11<=\d\+\>"
    223 syn match fortranTarget 	display	"\%(\<go\s*to\s*(\?\)\@11<=\%(\d\+\s*,\s*\)*\d\+\>"
    224 
    225 syn match fortranBoolean	"\.\s*\%(true\|false\)\s*\."
    226 
    227 syn keyword fortranKeyword      call use only continue allocate deallocate nullify return cycle exit contains
    228 syn match fortranKeyword        "\<fail\s\+image\>"
    229 syn match fortranKeyword	"\<\%(error\s\+\)\?stop\>"
    230 syn match fortranKeyword  	"\<go\s*to\>"
    231 syn match fortranKeywordDel  	"\<go\s*to\ze\s\+.*,\s*(.*$"
    232 syn match fortranKeywordOb  	"\<go\s*to\ze\s*(\d\+.*$"
    233 syn keyword fortranKeywordDel	pause
    234 syn match fortranKeywordDel	"assign\s*\d\+\s*to\s\+\a\w*"
    235 
    236 syn match fortranStringDel      display "[/(,] *\d\+H"
    237 syn region fortranString 	start=+'+ end=+'+	contains=fortranLeftMargin,fortranContinueMark,fortranSerialNumber
    238 syn region fortranString	start=+"+ end=+"+	contains=fortranLeftMargin,fortranContinueMark,fortranSerialNumber
    239 
    240 syn match fortranSpecifier     	'\%(\%((\|,\|, *&\n\)\s*\)\@<=\%(access\|acquired_lock\|action\|advance\|asynchronous\|blank\|decimal\|delim\|direct\|encoding\|end\|eor\|err\)\ze\s*='
    241 syn match fortranSpecifier     	'\%(\%((\|,\|, *&\n\)\s*\)\@<=\%(errmsg\|exist\|file\|fmt\|form\|formatted\|id\|iolength\|iomsg\|iostat\|leading_zero\|mold\|name\|named\)\ze\s*='
    242 syn match fortranSpecifier     	'\%(\%((\|,\|, *&\n\)\s*\)\@<=\%(new_index\|newunit\|nextrec\|nml\|notify\|number\|opened\|pad\|pending\|pos\|position\|quiet\)\ze\s*='
    243 syn match fortranSpecifier     	'\%(\%((\|,\|, *&\n\)\s*\)\@<=\%(read\|readwrite\|rec\|recl\|round\|sequential\|sign\|size\)\ze\s*='
    244 syn match fortranSpecifier     	'\%(\%((\|,\|, *&\n\)\s*\)\@<=\%(source\|stat\|status\|stream\|team\|team_number\|unformatted\|unit\|until_count\|write\)\ze\s*='
    245 syn match fortranSpecifier      "\%((\s*\)\@<=\%(un\)\?formatted\ze\s*)"
    246 syn match fortranSpecifier      "\%(local\|local_init\|reduce\|shared\)\ze\s*("
    247 syn match fortranSpecifier      "\<default\s*(\s*none\s*)"
    248 syn keyword fortranIOR		format namelist
    249 
    250 syn keyword fortranConditional	else then where elsewhere
    251 syn match fortranConditional    "\<\%(else\s*\)\?if\>"
    252 syn match fortranConditional    "\<\%(end\s*\)\?\%(if\|where\|select\)\>"
    253 syn match fortranConditional    "\<select\s*\%(case\|rank\|type\)\>"
    254 syn match fortranConditional    "\<\%(case\|rank\|class\)\s\+default\>"
    255 syn match fortranConditional    "^\s*\zs\%(case\|rank\)\ze\s\+("
    256 syn match fortranConditional    "\<\%(class\|type\)\s\+is\>"
    257 syn match fortranConditionalDel	"\<if\s*(.*)\s*\d\+\s*,\s*\d\+\s*,\s*\d\+\s*$"
    258 
    259 syn keyword fortranInclude		include
    260 
    261 syn match fortranImageControl   "\<sync\s\+\%(all\|images\|memory\|team\)\>"
    262 syn match fortranImageControl   "\<\%(change\|form\|end\)\s\+team\>"
    263 syn match fortranImageControl   "\<event\s\+\%(post\|wait\)"
    264 syn match fortranImageControl   "\<\%(un\)\?lock\ze\s*("
    265 syn match fortranImageControl   "\<notify\s\+wait\ze\s*("
    266 
    267 syn keyword fortranUnitHeaderOb	entry
    268 syn match fortranUnitHeaderOb	display "\<block\s*data\>"
    269 
    270 syn keyword fortranStorageClass	        in out inout
    271 syn match fortranStorageClass           '\<\%(kind\|len\)\>\ze\s*='
    272 syn match fortranStorageClass           "^\s*data\>\ze\%(\s\+\a\)\@="
    273 syn match fortranStorageClassOb         "\<common\>\%(\s*\%(/\|\a\)\)\@="
    274 syn match fortranStorageClassOb         "\<equivalence\>\%(\s*(\)\@="
    275 
    276 syn keyword fortranConstant             c_null_char c_alert c_backspace c_form_feed c_new_line c_carriage_return c_horizontal_tab c_vertical_tab c_ptrdiff_t
    277 syn keyword fortranConstant             c_int c_short c_long c_long_long c_signed_char c_size_t c_int8_t c_int16_t c_int32_t c_int64_t c_int_least8_t c_int_least16_t c_int_least32_t c_int_least64_t c_int_fast8_t c_int_fast16_t c_int_fast32_t c_int_fast64_t c_intmax_t C_intptr_t c_float c_double c_long_double c_float_complex c_double_complex c_long_double_complex c_bool c_char c_null_ptr c_null_funptr
    278 syn keyword fortranConstant             character_storage_size error_unit file_storage_size input_unit iostat_end iostat_eor numeric_storage_size output_unit stat_failed_image stat_locked stat_locked_other_image stat_stopped_image stat_unlocked stat_unlocked_failed_image
    279 syn keyword fortranConstant             int8 int16 int32 int64 real16 real32 real64 real128 character_kinds integer_kinds logical_kinds real_kinds iostat_inquire_internal_unit initial_team current_team parent_team
    280 syn keyword fortranConstant             ieee_invalid ieee_overflow ieee_divide_by_zero ieee_underflow ieee_inexact ieee_usual ieee_all
    281 syn keyword fortranConstant             ieee_signaling_nan ieee_quiet_nan ieee_negative_inf ieee_negative_normal ieee_negative_subnormal
    282 syn keyword fortranConstant             ieee_negative_zero ieee_positive_zero ieee_positive_subnormal ieee_positive_normal ieee_positive_inf
    283 syn keyword fortranConstant             ieee_other_value ieee_negative_denormal ieee_positive_denormal ieee_negative_subnormal
    284 syn keyword fortranConstant             ieee_positive_subnormal ieee_nearest ieee_to_zero ieee_up ieee_down ieee_away ieee_other ieee_datatype
    285 syn keyword fortranConstant             ieee_denormal ieee_divide ieee_halting ieee_inexact_flag ieee_inf ieee_invalid_flag ieee_nan
    286 syn keyword fortranConstant             ieee_rounding ieee_sqrt ieee_subnormal ieee_underflow_flag
    287 syn match fortranConstant	        "\.\s*nil\s*\."
    288 
    289 " CUDA Fortran
    290 if exists("fortran_CUDA")
    291  syn match fortranTypeCUDA           "\<attributes\>"
    292  syn keyword fortranTypeCUDA         host global device
    293  syn keyword fortranTypeCUDA         shared constant pinned texture
    294  syn keyword fortranTypeCUDA         dim1 dim2 dim3 dim4
    295  syn keyword fortranTypeCUDA         cudadeviceprop cuda_count_kind cuda_stream_kind
    296  syn keyword fortranTypeCUDA         cudaEvent cudaFuncAttributes cudaArrayPtr
    297  syn keyword fortranTypeCUDA         cudaSymbol cudaChannelFormatDesc cudaPitchedPtr
    298  syn keyword fortranTypeCUDA         cudaExtent cudaMemcpy3DParms
    299  syn keyword fortranTypeCUDA         cudaFuncCachePreferNone cudaFuncCachePreferShared
    300  syn keyword fortranTypeCUDA         cudaFuncCachePreferL1 cudaLimitStackSize
    301  syn keyword fortranTypeCUDA         cudaLimitPrintfSize cudaLimitMallocHeapSize
    302  syn keyword fortranTypeCUDA         cudaSharedMemBankSizeDefault cudaSharedMemBankSizeFourByte cudaSharedMemBankSizeEightByte
    303  syn keyword fortranTypeCUDA         cudaEventDefault cudaEventBlockingSync cudaEventDisableTiming
    304  syn keyword fortranTypeCUDA         cudaMemcpyHostToDevice cudaMemcpyDeviceToHost
    305  syn keyword fortranTypeCUDA         cudaMemcpyDeviceToDevice
    306  syn keyword fortranTypeCUDA         cudaErrorNotReady cudaSuccess cudaErrorInvalidValue
    307  syn keyword fortranTypeCUDA         c_devptr
    308 
    309  syn match fortranStringCUDA         "\<blockidx%[xyz]\>"
    310  syn match fortranStringCUDA         "\<blockdim%[xyz]\>"
    311  syn match fortranStringCUDA         "\<griddim%[xyz]\>"
    312  syn match fortranStringCUDA         "\<threadidx%[xyz]\>"
    313 
    314  syn keyword fortranIntrinsicCUDA    warpsize syncthreads syncthreads_and syncthreads_count syncthreads_or threadfence threadfence_block threadfence_system gpu_time allthreads anythread ballot
    315  syn keyword fortranIntrinsicCUDA    atomicadd atomicsub atomicmax atomicmin atomicand atomicor atomicxor atomicexch atomicinc atomicdec atomiccas sizeof __shfl __shfl_up __shfl_down __shfl_xor
    316  syn keyword fortranIntrinsicCUDA    cudaChooseDevice cudaDeviceGetCacheConfig cudaDeviceGetLimit cudaDeviceGetSharedMemConfig cudaDeviceReset cudaDeviceSetCacheConfig cudaDeviceSetLimit cudaDeviceSetSharedMemConfig cudaDeviceSynchronize cudaGetDevice cudaGetDeviceCount cudaGetDeviceProperties cudaSetDevice cudaSetDeviceFlags cudaSetValidDevices
    317  syn keyword fortranIntrinsicCUDA    cudaThreadExit cudaThreadSynchronize cudaGetLastError cudaGetErrorString cudaPeekAtLastError cudaStreamCreate cudaStreamDestroy cudaStreamQuery cudaStreamSynchronize cudaStreamWaitEvent cudaEventCreate cudaEventCreateWithFlags cudaEventDestroy cudaEventElapsedTime cudaEventQuery cudaEventRecord cudaEventSynchronize
    318  syn keyword fortranIntrinsicCUDA    cudaFuncGetAttributes cudaFuncSetCacheConfig cudaFuncSetSharedMemConfig cudaSetDoubleForDevice cudaSetDoubleForHost cudaFree cudaFreeArray cudaFreeHost cudaGetSymbolAddress cudaGetSymbolSize
    319  syn keyword fortranIntrinsicCUDA    cudaHostAlloc cudaHostGetDevicePointer cudaHostGetFlags cudaHostRegister cudaHostUnregister cudaMalloc cudaMallocArray cudaMallocHost cudaMallocPitch cudaMalloc3D cudaMalloc3DArray
    320  syn keyword fortranIntrinsicCUDA    cudaMemcpy cudaMemcpyArraytoArray cudaMemcpyAsync cudaMemcpyFromArray cudaMemcpyFromSymbol cudaMemcpyFromSymbolAsync cudaMemcpyPeer cudaMemcpyPeerAsync cudaMemcpyToArray cudaMemcpyToSymbol cudaMemcpyToSymbolAsync cudaMemcpy2D cudaMemcpy2DArrayToArray cudaMemcpy2DAsync cudaMemcpy2DFromArray cudaMemcpy2DToArray cudaMemcpy3D cudaMemcpy3DAsync
    321  syn keyword fortranIntrinsicCUDA    cudaMemGetInfo cudaMemset cudaMemset2D cudaMemset3D cudaDeviceCanAccessPeer cudaDeviceDisablePeerAccess cudaDeviceEnablePeerAccess cudaPointerGetAttributes cudaDriverGetVersion cudaRuntimeGetVersion
    322 endif
    323 
    324 syn region none matchgroup=fortranType start="<<<" end=">>>" contains=ALLBUT,none
    325 
    326 syn cluster fortranCommentGroup contains=fortranTodo
    327 
    328 if (b:fortran_fixed_source == 1)
    329  if !exists("fortran_have_tabs")
    330    if exists("fortran_extended_line_length")
    331    " Vendor extensions allow lines with a text width of 132
    332      syn match fortranSerialNumber	excludenl "^.\{133,}$"lc=132
    333    else
    334    " Standard requires fixed format to have a text width of 72,
    335    " but all current compilers use 80 instead
    336      syn match fortranSerialNumber	excludenl "^.\{81,}$"lc=80
    337    endif
    338    "Flag left margin errors
    339    syn match fortranLabelError	"^.\{-,4}[^0-9 ]" contains=fortranTab
    340    syn match fortranLabelError	"^.\{4}\d\S"
    341  endif
    342  syn match fortranComment		excludenl "^[!c*].*$" contains=@fortranCommentGroup,@spell
    343  syn match fortranLeftMargin		transparent "^ \{5}"
    344  syn match fortranContinueMark		display "^.\{5}\S"lc=5
    345 else
    346  syn match fortranContinueMark		display "&"
    347 endif
    348 
    349 syn match fortranComment	excludenl "!.*$" contains=@fortranCommentGroup,@spell
    350 syn match fortranOpenMP		excludenl 		"^\s*\zs!\$\%(OMP\)\?&\?\s.*$"
    351 syn match fortranEndStatement   display ";"
    352 
    353 "cpp is often used with Fortran
    354 syn match	cPreProc		"^\s*#\s*\%(define\|ifdef\)\>.*"
    355 syn match	cPreProc		"^\s*#\s*\%(elif\|if\)\>.*"
    356 syn match	cPreProc		"^\s*#\s*\%(ifndef\|undef\)\>.*"
    357 syn match	cPreCondit		"^\s*#\s*\%(else\|endif\)\>.*"
    358 syn region	cIncluded	contained start=+"[^("]+ skip=+\\\\\|\\"+ end=+"+ contains=fortranLeftMargin,fortranContinueMark,fortranSerialNumber
    359 syn match	cIncluded		contained "<[^>]*>"
    360 syn match	cInclude		"^\s*#\s*include\>\s*["<]" contains=cIncluded
    361 
    362 "Synchronising limits assume that comment and continuation lines are not mixed
    363 if exists("fortran_fold")
    364  syn sync fromstart
    365 elseif (b:fortran_fixed_source == 0)
    366  syn sync linecont "&" minlines=30
    367 else
    368  syn sync minlines=30
    369 endif
    370 
    371 if exists("fortran_fold")
    372 
    373  if has("folding")
    374    setlocal foldmethod=syntax
    375  endif
    376  if (b:fortran_fixed_source == 1)
    377    syn region fortranProgram transparent fold keepend start="^\s*program\s\+\z(\a\w*\)" skip="^\%([!c*]\|\s*#\).*$" excludenl end="\<end\s*\%(program\%(\s\+\z1\>\)\?\|$\)" contains=ALLBUT,fortranModule
    378    syn region fortranModule transparent fold keepend start="^\s*submodule\s\+(\a\w*\s*\%(:\a\w*\s*\)*)\s*\z\(\a\w*\)" skip="^\%([!c*]\|\s*#\).*$" excludenl end="\<end\s*\%(submodule\%(\s\+\z1\>\)\?\|$\)" contains=ALLBUT,fortranProgram,fortranModule
    379    syn region fortranModule transparent fold keepend start="^\s*module\s\+\%(procedure\)\@9!\z(\a\w*\)" skip="^\%([!c*]\|\s*#\).*$" excludenl end="\<end\s*\%(module\%(\s\+\z1\>\)\?\|$\)" contains=ALLBUT,fortranProgram
    380    syn region fortranFunction transparent fold keepend extend start="\<function\s\+\z(\a\w*\)" skip="^\%([!c*]\|\s*#\).*$" excludenl end="\<end\s*\%($\|function\%(\s\+\z1\>\)\?\)" contains=ALLBUT,fortranProgram,fortranModule
    381    syn region fortranSubroutine transparent fold keepend extend start="\<subroutine\s\+\z(\a\w*\)" skip="^\%([!c*]\|\s*#\).*$" excludenl end="\<end\s*\%($\|subroutine\%(\s\+\z1\>\)\?\)" contains=ALLBUT,fortranProgram,fortranModule
    382    syn region fortranBlockData transparent fold keepend start="\<block\>" skip="^\%([!c*]\|\s*#\).*$" excludenl end="\<end\s*block\>" contains=ALLBUT,fortranProgram,fortranModule,fortranSubroutine,fortranFunction,fortran77Loop,fortranCase,fortran90Loop,fortranIfBlock
    383    syn region fortranAssociate transparent fold keepend start="\<associate\s\+" skip="^\%([!c*]\|\s*#\).*$" excludenl end="\<end\s*associate" contains=ALLBUT,fortranProgram,fortranModule,fortranSubroutine,fortranFunction
    384    syn region fortranCritical transparent fold keepend start="\<critical\s\+" skip="^\%([!c*]\|\s*#\).*$" excludenl end="\<end\s*critical" contains=ALLBUT,fortranProgram,fortranModule,fortranSubroutine,fortranFunction
    385    syn region fortranTeam transparent fold keepend start="\<change\s\+team\>" skip="^\%([!c*]\|\s*#\).*$" excludenl end="\<end\s*team\>" contains=ALLBUT,fortranProgram,fortranModule,fortranSubroutine,fortranFunction
    386    syn region fortranInterface transparent fold keepend extend start="\<\%(abstract \)\?\s*interface\>" skip="^\%([!c*]\|\s*#\).*$" excludenl end="\<end\s*interface\>" contains=ALLBUT,fortranProgram,fortranModule,fortran77Loop,fortranCase,fortran90Loop,fortranIfBlock
    387    syn region fortranTypeDef transparent fold keepend extend start="^\s*type\s*\%(,\s*\%(abstract\|private\|public\|bind(c)\|extends(\a\w*)\)\)\{0,4}\s*::\s*\z(\a\w*\)" skip="^\%([!c*]\|\s*#\).*$" excludenl end="\<end\s*type\>\%(\s\+\z1\>\)\?" contains=ALLBUT,fortranProgram,fortranModule,fortranSubroutine,fortranFunction
    388    syn region fortranMultiComments fold  start="^\zs[!c*].*\_s*[!c*]"	skip="^[!c*]"	end='^\ze\s*[^!c*]'
    389  else
    390    syn region fortranProgram transparent fold keepend start="^\s*program\s\+\z(\a\w*\)" skip="^\s*[!#].*$" excludenl end="\<end\s*\%(program\%(\s\+\z1\>\)\?\|$\)" contains=ALLBUT,fortranModule
    391    syn region fortranModule transparent fold keepend start="^\s*submodule\s\+(\a\w*\s*\%(:\a\w*\s*\)*)\s*\z\(\a\w*\)" skip="^\s*[!#].*$" excludenl end="\<end\s*\%(submodule\%(\s\+\z1\>\)\?\|$\)" contains=ALLBUT,fortranProgram,fortranModule
    392    syn region fortranModule transparent fold keepend start="^\s*module\s\+\%(procedure\)\@9!\z(\a\w*\)" skip="^\s*[!#].*$" excludenl end="\<end\s*\%(module\%(\s\+\z1\>\)\?\|$\)" contains=ALLBUT,fortranProgram
    393    syn region fortranFunction transparent fold keepend extend start="\<function\s\+\z(\a\w*\)" skip="^\s*[!#].*$" excludenl end="\<end\s*\%($\|function\%(\s\+\z1\>\)\?\)" contains=ALLBUT,fortranProgram,fortranModule
    394    syn region fortranSubroutine transparent fold keepend extend start="\<subroutine\s\+\z(\a\w*\)" skip="^\s*[!#].*$" excludenl end="\<end\s*\%($\|subroutine\%(\s\+\z1\>\)\?\)" contains=ALLBUT,fortranProgram,fortranModule
    395    syn region fortranBlockData transparent fold keepend start="\<block\>" skip="^\s*[!#].*$" excludenl end="\<end\s*block\>" contains=ALLBUT,fortranProgram,fortranModule,fortranSubroutine,fortranFunction,fortran77Loop,fortranCase,fortran90Loop,fortranIfBlock
    396    syn region fortranAssociate transparent fold keepend start="\<associate\>" skip="^\s*[!#].*$" excludenl end="\<end\s*associate\>" contains=ALLBUT,fortranProgram,fortranModule,fortranSubroutine,fortranFunction
    397    syn region fortranCritical transparent fold keepend start="\<critical\>" skip="^\s*[!#].*$" excludenl end="\<end\s*critical\>" contains=ALLBUT,fortranProgram,fortranModule,fortranSubroutine,fortranFunction
    398    syn region fortranTeam transparent fold keepend start="\<change\s\+team\>" skip="^\s*[!#].*$" excludenl end="\<end\s*team\>" contains=ALLBUT,fortranProgram,fortranModule,fortranSubroutine,fortranFunction
    399    syn region fortranInterface transparent fold keepend extend start="\<\%(abstract \)\?\s*interface\>" skip="^\s*[!#].*$" excludenl end="\<end\s*interface\>" contains=ALLBUT,fortranProgram,fortranModule,fortran77Loop,fortranCase,fortran90Loop,fortranIfBlock
    400    syn region fortranTypeDef transparent fold keepend extend start="^\s*type\s*\%(,\s*\%(abstract\|private\|public\|bind(c)\|extends(\a\w*)\)\)\{0,4}\s*::\s*\z(\a\w*\)" skip="^\s*[!#].*$" excludenl end="\<end\s*type\>\%(\s\+\z1\>\)\?" contains=ALLBUT,fortranProgram,fortranModule,fortranSubroutine,fortranFunction
    401    syn region fortranMultiComments fold  start="^\zs\s*!.*\_s*!"	skip="^\s*!"	end='^\ze\s*[^!]'
    402  endif
    403 
    404  if exists("fortran_fold_conditionals")
    405    if (b:fortran_fixed_source == 1)
    406      syn region fortran77Loop transparent fold keepend start="\<do\s\+\z(\d\+\)" end="^\s*\z1\>" contains=ALLBUT,fortranUnitHeader,fortranAttribute,fortranStorageClass,fortranType,fortranProgram,fortranModule,fortranSubroutine,fortranFunction,fortranBlockData
    407      syn region fortran90Loop transparent fold keepend extend start="\%(\<end\s\+\)\@5<!\<do\%(\s\+\a\|\s*$\)" skip="^\%([!c*]\|\s*#\).*$" excludenl end="\<end\s*do\>" contains=ALLBUT,fortranUnitHeader,fortranAttribute,fortranStorageClass,fortranType,fortranProgram,fortranModule,fortranSubroutine,fortranFunction,fortranBlockData
    408      syn region fortranIfBlock transparent fold keepend extend start="\%(\<e\%(nd\|lse\)\s\+\)\@6<!\<if\s*(.\+)\s*then\>" skip="^\%([!c*]\|\s*#\).*$" end="\<end\s*if\>" contains=ALLBUT,fortranUnitHeader,fortranAttribute,fortranStorageClass,fortranType,fortranProgram,fortranModule,fortranSubroutine,fortranFunction,fortranBlockData
    409      syn region fortranCase transparent fold keepend extend start="\<select\s*\%(case\|type\|rank\)\>" skip="^\%([!c*]\|\s*#\).*$" end="\<end\s*select\>" contains=ALLBUT,fortranUnitHeader,fortranAttribute,fortranStorageClass,fortranType,fortranProgram,fortranModule,fortranSubroutine,fortranFunction,fortranBlockData
    410    else
    411      syn region fortran77Loop transparent fold keepend start="\<do\s\+\z(\d\+\)" end="^\s*\z1\>" contains=ALLBUT,fortranUnitHeader,fortranAttribute,fortranStorageClass,fortranType,fortranProgram,fortranModule,fortranSubroutine,fortranFunction,fortranBlockData
    412      syn region fortran90Loop transparent fold keepend extend start="\%(\<end\s\+\)\@5<!\<do\%(\s\+\a\|\s*$\)" skip="^\s*[!#].*$" excludenl end="\<end\s*do\>" contains=ALLBUT,fortranUnitHeader,fortranAttribute,fortranStorageClass,fortranType,fortranProgram,fortranModule,fortranSubroutine,fortranFunction,fortranBlockData
    413      syn region fortranIfBlock transparent fold keepend extend start="\%(\<e\%(nd\|lse\)\s\+\)\@6<!\<if\s*(\%(.\|&\s*\n\)\+)\%(\s\|&\s*\n\)*then\>" skip="^\s*[!#].*$" end="\<end\s*if\>" contains=ALLBUT,fortranUnitHeader,fortranAttribute,fortranStorageClass,fortranType,fortranProgram,fortranModule,fortranSubroutine,fortranFunction,fortranBlockData
    414      syn region fortranCase transparent fold keepend extend start="\<select\s*\%(case\|type\|rank\)\>" skip="^\s*[!#].*$" end="\<end\s*select\>" contains=ALLBUT,fortranUnitHeader,fortranAttribute,fortranStorageClass,fortranType,fortranProgram,fortranModule,fortranSubroutine,fortranFunction,fortranBlockData
    415    endif
    416  endif
    417 
    418 endif
    419 
    420 " Define the default highlighting.
    421 hi def link fortranBoolean	        Boolean
    422 hi def link fortranComment     		Comment
    423 hi def link fortranMultiComments        Comment
    424 hi def link fortranBlock                Conditional
    425 hi def link fortranConditional	        Conditional
    426 hi def link fortranConstant     	Constant
    427 hi def link fortranConditionalDel 	Error
    428 hi def link fortranKeywordDel     	Error
    429 hi def link fortranLabelError	        Error
    430 hi def link fortranParenError  		Error
    431 hi def link fortranStringDel            Error
    432 hi def link fortranTab		        Error
    433 hi def link fortranFloat       		Float
    434 hi def link fortranFloatIll             Float
    435 hi def link fortranCalled               Function
    436 hi def link fortranIntrinsic            Function
    437 hi def link fortranIntrinsicCUDA        Function
    438 hi def link fortranIntrinsicR   	Function
    439 hi def link fortranIntrinsicVen 	Function
    440 hi def link fortranUnitName     	Function
    441 hi def link fortranConstructName	Identifier
    442 hi def link fortranFormatSpec  		Identifier
    443 hi def link cInclude    		Include
    444 hi def link fortranInclude              Include
    445 hi def link fortranIOR  		Keyword
    446 hi def link fortranImageControl         Keyword
    447 hi def link fortranKeyword 	        Keyword
    448 hi def link fortranReadWrite            Keyword
    449 hi def link fortranSpecifier		Keyword
    450 hi def link fortranBinary	        Number
    451 hi def link fortranHex  	        Number
    452 hi def link fortranNumber	        Number
    453 hi def link fortranBinary	        Number
    454 hi def link fortranOctal	        Number
    455 hi def link fortranOperator	        Operator
    456 hi def link fortranOperatorR	        Operator
    457 hi def link cPreCondit  		PreCondit
    458 hi def link fortranUnitHeader           PreCondit
    459 hi def link fortranOpenMP      		PreProc
    460 hi def link cPreProc    		PreProc
    461 hi def link fortranRepeat	        Repeat
    462 hi def link fortranRepeatR  		Repeat
    463 hi def link fortranContinueMark	        Special
    464 hi def link fortranEndStatement	        Special
    465 hi def link fortranLabelNumber          Special
    466 hi def link fortranTarget               Special
    467 hi def link fortranStorageClass         StorageClass
    468 hi def link cIncluded   		String
    469 hi def link fortranString	        String
    470 hi def link fortranStringCUDA           String
    471 hi def link fortranIntrinsicOb    	Todo
    472 hi def link fortranKeywordOb      	Todo
    473 hi def link fortranLabelNumberOb        Todo
    474 hi def link fortranRepeatOb       	Todo
    475 hi def link fortranSerialNumber	        Todo
    476 hi def link fortranStorageClassOb 	Todo
    477 hi  def link fortranTargetOb         	Todo
    478 hi def link fortranTodo		        Todo
    479 hi def link fortranTypeOb         	Todo
    480 hi def link fortranUnitHeaderOb   	Todo
    481 hi def link fortranAttribute	        Type
    482 hi def link fortranType		        Type
    483 hi def link fortranTypeCUDA             Type
    484 hi def link fortranTypeR		Type
    485 
    486 let b:current_syntax = "fortran"
    487 
    488 let &cpo = s:cpo_save
    489 unlet s:cpo_save
    490 " vim: ts=8 tw=132