xref: /vim-8.2.3635/runtime/syntax/fortran.vim (revision cb03397a)
1" Vim syntax file
2" Language:	Fortran 2008 (and older: Fortran 2003, 95, 90, and 77)
3" Version:	0.98
4" Last Change:	2016 Aug. 26
5" Maintainer:	Ajit J. Thakkar <[email protected]>; <http://www2.unb.ca/~ajit/>
6" Usage:	For instructions, do :help fortran-syntax from Vim
7" Credits:
8"  Version 0.1 (April 2000) was based on the fortran 77 syntax file by Mario Eusebio and
9"  Preben Guldberg. Since then, useful suggestions and contributions have been made,
10"  in chronological order, by:
11"  Andrej Panjkov, Bram Moolenaar, Thomas Olsen, Michael Sternberg, Christian Reile,
12"  Walter Dieudonn�, Alexander Wagner, Roman Bertle, Charles Rendleman,
13"  Andrew Griffiths, Joe Krahn, Hendrik Merx, Matt Thompson, Jan Hermann,
14"  Stefano Zaghi and Vishnu Krishnan.
15
16if exists("b:current_syntax")
17  finish
18endif
19
20let s:cpo_save = &cpo
21set cpo&vim
22
23" Choose fortran_dialect using the priority:
24" source file directive > buffer-local value > global value > file extension
25" first try using directive in first three lines of file
26let b:fortran_retype = getline(1)." ".getline(2)." ".getline(3)
27if b:fortran_retype =~? '\<fortran_dialect\s*=\s*F\>'
28  let b:fortran_dialect = "F"
29elseif b:fortran_retype =~? '\<fortran_dialect\s*=\s*f08\>'
30  let b:fortran_dialect = "f08"
31elseif !exists("b:fortran_dialect")
32  if exists("g:fortran_dialect") && g:fortran_dialect =~# '\<F\|f08\>'
33    " try global variable
34    let b:fortran_dialect = g:fortran_dialect
35  else         " nothing found, so use default
36    let b:fortran_dialect = "f08"
37  endif
38endif
39unlet! b:fortran_retype
40" make sure buffer-local value is not invalid
41if b:fortran_dialect !~# '\<F\|f08\>'
42  let b:fortran_dialect = "f08"
43endif
44
45" Choose between fixed and free source form if this hasn't been done yet
46if !exists("b:fortran_fixed_source")
47  if b:fortran_dialect == "F"
48    " F requires free source form
49    let b:fortran_fixed_source = 0
50  elseif exists("fortran_free_source")
51    " User guarantees free source form for all fortran files
52    let b:fortran_fixed_source = 0
53  elseif exists("fortran_fixed_source")
54    " User guarantees fixed source form for all fortran files
55    let b:fortran_fixed_source = 1
56  elseif expand("%:e") ==? "f\<90\|95\|03\|08\>"
57    " Free-form file extension defaults as in Intel ifort, gcc(gfortran), NAG, Pathscale, and Cray compilers
58    let b:fortran_fixed_source = 0
59  elseif expand("%:e") ==? "f\|f77\|for"
60    " Fixed-form file extension defaults
61    let b:fortran_fixed_source = 1
62  else
63    " Modern fortran still allows both free and fixed source form.
64    " Assume fixed source form unless signs of free source form
65    " are detected in the first five columns of the first s:lmax lines.
66    " Detection becomes more accurate and time-consuming if more lines
67    " are checked. Increase the limit below if you keep lots of comments at
68    " the very top of each file and you have a fast computer.
69    let s:lmax = 500
70    if ( s:lmax > line("$") )
71      let s:lmax = line("$")
72    endif
73    let b:fortran_fixed_source = 1
74    let s:ln=1
75    while s:ln <= s:lmax
76      let s:test = strpart(getline(s:ln),0,5)
77      if s:test !~ '^[Cc*]' && s:test !~ '^ *[!#]' && s:test =~ '[^ 0-9\t]' && s:test !~ '^[ 0-9]*\t'
78        let b:fortran_fixed_source = 0
79        break
80      endif
81      let s:ln = s:ln + 1
82    endwhile
83    unlet! s:lmax s:ln s:test
84  endif
85endif
86
87syn case ignore
88
89if b:fortran_fixed_source == 1
90  syn match fortranConstructName	"^\s\{6,}\zs\a\w*\ze\s*:"
91else
92  syn match fortranConstructName	"^\s*\zs\a\w*\ze\s*:"
93endif
94if exists("fortran_more_precise")
95  syn match fortranConstructName "\(\<end\s*do\s\+\)\@<=\a\w*"
96  syn match fortranConstructName "\(\<end\s*if\s\+\)\@<=\a\w*"
97  syn match fortranConstructName "\(\<end\s*select\s\+\)\@<=\a\w*"
98endif
99
100syn match fortranUnitHeader	"\<end\>"
101syn match fortranType		"\<character\>"
102syn match fortranType		"\<complex\>"
103syn match fortranType		"\<integer\>"
104syn keyword fortranType		intrinsic
105syn match fortranType		"\<implicit\>"
106syn keyword fortranStructure	dimension
107syn keyword fortranStorageClass	parameter save
108syn match fortranUnitHeader	"\<subroutine\>"
109syn keyword fortranCall		call
110syn match fortranUnitHeader	"\<function\>"
111syn match fortranUnitHeader	"\<program\>"
112syn match fortranUnitHeader	"\<block\>"
113syn keyword fortranKeyword	return stop
114syn keyword fortranConditional	else then
115syn match fortranConditional	"\<if\>"
116syn match fortranConditionalOb	"\<if\s*(.*)\s*\d\+\s*,\s*\d\+\s*,\s*\d\+\s*$"
117syn match fortranRepeat		"\<do\>"
118
119syn keyword fortranTodo		contained todo fixme
120
121"Catch errors caused by too many right parentheses
122syn region fortranParen transparent start="(" end=")" contains=ALLBUT,fortranParenError,@fortranCommentGroup,cIncluded,@spell
123syn match  fortranParenError   ")"
124
125syn match fortranOperator	"\.\s*n\=eqv\s*\."
126syn match fortranOperator	"\.\s*\(and\|or\|not\)\s*\."
127syn match fortranOperator	"\(+\|-\|/\|\*\)"
128syn match fortranTypeOb		"\<character\s*\*"
129
130syn match fortranBoolean	"\.\s*\(true\|false\)\s*\."
131
132syn keyword fortranReadWrite	backspace close endfile inquire open print read rewind write
133
134"If tabs are allowed then the left margin checks do not work
135if exists("fortran_have_tabs")
136  syn match fortranTab		"\t"  transparent
137else
138  syn match fortranTab		"\t"
139endif
140
141syn keyword fortranIO		access blank direct exist file fmt form formatted iostat name named nextrec number opened rec recl sequential status unformatted unit
142
143syn keyword fortranIntrinsicR		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
144
145" Intrinsics provided by some vendors
146syn keyword fortranExtraIntrinsic	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
147
148syn 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
149syn match fortranIntrinsic	"\<len\s*[(,]"me=s+3
150syn match fortranIntrinsic	"\<real\s*("me=s+4
151syn match fortranType		"\<implicit\s\+real"
152syn match fortranType		"^\s*real\>"
153syn match fortranIntrinsic	"\<logical\s*("me=s+7
154syn match fortranType		"\<implicit\s\+logical"
155syn match fortranType		"^\s*logical\>"
156
157"Numbers of various sorts
158" Integers
159syn match fortranNumber	display "\<\d\+\(_\a\w*\)\=\>"
160" floating point number, without a decimal point
161syn match fortranFloatIll	display	"\<\d\+[deq][-+]\=\d\+\(_\a\w*\)\=\>"
162" floating point number, starting with a decimal point
163syn match fortranFloatIll	display	"\.\d\+\([deq][-+]\=\d\+\)\=\(_\a\w*\)\=\>"
164" floating point number, no digits after decimal
165syn match fortranFloatIll	display	"\<\d\+\.\([deq][-+]\=\d\+\)\=\(_\a\w*\)\=\>"
166" floating point number, D or Q exponents
167syn match fortranFloatIll	display	"\<\d\+\.\d\+\([dq][-+]\=\d\+\)\=\(_\a\w*\)\=\>"
168" floating point number
169syn match fortranFloat	display	"\<\d\+\.\d\+\(e[-+]\=\d\+\)\=\(_\a\w*\)\=\>"
170" Numbers in formats
171syn match fortranFormatSpec	display	"\d*f\d\+\.\d\+"
172syn match fortranFormatSpec	display	"\d*e[sn]\=\d\+\.\d\+\(e\d+\>\)\="
173syn match fortranFormatSpec	display	"\d*\(d\|q\|g\)\d\+\.\d\+\(e\d+\)\="
174syn match fortranFormatSpec	display	"\d\+x\>"
175" The next match cannot be used because it would pick up identifiers as well
176" syn match fortranFormatSpec	display	"\<\(a\|i\)\d\+"
177
178" Numbers as labels
179syn match fortranLabelNumber	display	"^\d\{1,5}\s"me=e-1
180syn match fortranLabelNumber	display	"^ \d\{1,4}\s"ms=s+1,me=e-1
181syn match fortranLabelNumber	display	"^  \d\{1,3}\s"ms=s+2,me=e-1
182syn match fortranLabelNumber	display	"^   \d\d\=\s"ms=s+3,me=e-1
183syn match fortranLabelNumber	display	"^    \d\s"ms=s+4,me=e-1
184
185if exists("fortran_more_precise")
186  " Numbers as targets
187  syn match fortranTarget	display	"\(\<if\s*(.\+)\s*\)\@<=\(\d\+\s*,\s*\)\{2}\d\+\>"
188  syn match fortranTarget	display	"\(\<do\s\+\)\@<=\d\+\>"
189  syn match fortranTarget	display	"\(\<go\s*to\s*(\=\)\@<=\(\d\+\s*,\s*\)*\d\+\>"
190endif
191
192syn keyword fortranTypeR	external
193syn keyword fortranIOR		format
194syn match fortranKeywordR	"\<continue\>"
195syn match fortranKeyword	"^\s*\d\+\s\+continue\>"
196syn match fortranKeyword  	"\<go\s*to\>"
197syn match fortranKeywordDel  	"\<go\s*to\ze\s\+.*,\s*(.*$"
198syn match fortranKeywordOb  	"\<go\s*to\ze\s*(\d\+.*$"
199syn region fortranStringR	start=+'+ end=+'+ contains=fortranContinueMark,fortranLeftMargin,fortranSerialNumber
200syn keyword fortranIntrinsicR	dim lge lgt lle llt mod
201syn keyword fortranKeywordDel	assign pause
202
203syn match fortranType           "\<type\>"
204syn keyword fortranType	        none
205
206syn keyword fortranStructure	private public intent optional
207syn keyword fortranStructure	pointer target allocatable
208syn keyword fortranStorageClass	in out
209syn match fortranStorageClass	"\<kind\s*="me=s+4
210syn match fortranStorageClass	"\<len\s*="me=s+3
211
212syn match fortranUnitHeader	"\<module\>"
213syn match fortranUnitHeader	"\<submodule\>"
214syn keyword fortranUnitHeader	use only contains
215syn keyword fortranUnitHeader	result operator assignment
216syn match fortranUnitHeader	"\<interface\>"
217syn match fortranUnitHeader	"\<recursive\>"
218syn keyword fortranKeyword	allocate deallocate nullify cycle exit
219syn match fortranConditional	"\<select\>"
220syn keyword fortranConditional	case default where elsewhere
221
222syn match fortranOperator	"\(\(>\|<\)=\=\|==\|/=\|=\)"
223syn match fortranOperator	"=>"
224
225syn region fortranString	start=+"+ end=+"+	contains=fortranLeftMargin,fortranContinueMark,fortranSerialNumber
226syn keyword fortranIO		pad position action delim readwrite
227syn keyword fortranIO		eor advance nml
228
229syn keyword fortranIntrinsic	adjustl adjustr all allocated any associated bit_size btest ceiling count cshift date_and_time digits dot_product eoshift epsilon exponent floor fraction huge iand ibclr ibits ibset ieor ior ishft ishftc lbound len_trim matmul maxexponent maxloc maxval merge minexponent minloc minval modulo mvbits nearest pack precision present product radix random_number random_seed range repeat reshape rrspacing
230syn keyword fortranIntrinsic	scale scan selected_int_kind selected_real_kind set_exponent shape size spacing spread sum system_clock tiny transpose trim ubound unpack verify
231syn match fortranIntrinsic		"\<not\>\(\s*\.\)\@!"me=s+3
232syn match fortranIntrinsic	"\<kind\>\s*[(,]"me=s+4
233
234syn match  fortranUnitHeader	"\<end\s*function"
235syn match  fortranUnitHeader	"\<end\s*interface"
236syn match  fortranUnitHeader	"\<end\s*module"
237syn match  fortranUnitHeader	"\<end\s*submodule"
238syn match  fortranUnitHeader	"\<end\s*program"
239syn match  fortranUnitHeader	"\<end\s*subroutine"
240syn match  fortranUnitHeader	"\<end\s*block"
241syn match  fortranRepeat	"\<end\s*do"
242syn match  fortranConditional	"\<end\s*where"
243syn match  fortranConditional	"\<select\s*case"
244syn match  fortranConditional	"\<end\s*select"
245syn match  fortranType	"\<end\s*type"
246syn match  fortranType	"\<in\s*out"
247
248syn keyword fortranType	        procedure
249syn match  fortranType	        "\<module\ze\s\+procedure\>"
250syn keyword fortranIOR		namelist
251syn keyword fortranConditionalR	while
252syn keyword fortranIntrinsicR	achar iachar transfer
253
254syn keyword fortranInclude		include
255syn keyword fortranStorageClassR	sequence
256
257syn match   fortranConditional	"\<end\s*if"
258syn match   fortranIO		contains=fortranOperator "\<e\(nd\|rr\)\s*=\s*\d\+"
259syn match   fortranConditional	"\<else\s*if"
260
261syn keyword fortranUnitHeaderOb	entry
262syn match fortranTypeR		display "double\s\+precision"
263syn match fortranTypeR		display "double\s\+complex"
264syn match fortranUnitHeaderR	display "block\s\+data"
265syn keyword fortranStorageClassR	common equivalence data
266syn keyword fortranIntrinsicR	dble dprod
267syn match   fortranOperatorR	"\.\s*[gl][et]\s*\."
268syn match   fortranOperatorR	"\.\s*\(eq\|ne\)\s*\."
269
270syn keyword fortranRepeat		forall
271syn match fortranRepeat		"\<end\s*forall"
272syn keyword fortranIntrinsic	null cpu_time
273syn match fortranType			"\<elemental\>"
274syn match fortranType			"\<pure\>"
275syn match fortranType			"\<impure\>"
276if exists("fortran_more_precise")
277  syn match fortranConstructName "\(\<end\s*forall\s\+\)\@<=\a\w*\>"
278endif
279
280if b:fortran_dialect == "f08"
281  " F2003
282  syn keyword fortranIntrinsic        command_argument_count get_command get_command_argument get_environment_variable is_iostat_end is_iostat_eor move_alloc new_line selected_char_kind same_type_as extends_type_of
283  " ISO_C_binding
284  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
285  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
286  syn keyword fortranIntrinsic        iso_c_binding c_loc c_funloc c_associated  c_f_pointer c_f_procpointer
287  syn keyword fortranType             c_ptr c_funptr
288  " ISO_Fortran_env
289  syn keyword fortranConstant         iso_fortran_env character_storage_size error_unit file_storage_size input_unit iostat_end iostat_eor numeric_storage_size output_unit
290  " IEEE_arithmetic
291  syn keyword fortranIntrinsic        ieee_arithmetic ieee_support_underflow_control ieee_get_underflow_mode ieee_set_underflow_mode
292
293  syn keyword fortranReadWrite	flush wait
294  syn keyword fortranIO 	      decimal round iomsg
295  syn keyword fortranType             asynchronous nopass non_overridable pass protected volatile extends import
296  syn keyword fortranType             non_intrinsic value bind deferred generic final enumerator
297  syn match fortranType               "\<abstract\>"
298  syn match fortranType               "\<class\>"
299  syn match fortranType               "\<associate\>"
300  syn match fortranType               "\<end\s*associate"
301  syn match fortranType               "\<enum\s*,\s*bind\s*(\s*c\s*)"
302  syn match fortranType               "\<end\s*enum"
303  syn match fortranConditional	"\<select\s*type"
304  syn match fortranConditional        "\<type\s*is\>"
305  syn match fortranConditional        "\<class\s*is\>"
306  syn match fortranUnitHeader         "\<abstract\s*interface\>"
307  syn match fortranOperator           "\([\|]\)"
308
309  " F2008
310  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
311  syn keyword fortranIntrinsic        atomic_define atomic_ref execute_command_line leadz trailz storage_size merge_bits
312  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
313  syn keyword fortranIO               newunit
314  syn keyword fortranType             contiguous
315  syn keyword fortranRepeat           concurrent
316
317" CUDA fortran
318  syn match fortranTypeCUDA           "\<attributes\>"
319  syn keyword fortranTypeCUDA         host global device value
320  syn keyword fortranTypeCUDA         shared constant pinned texture
321  syn keyword fortranTypeCUDA         dim1 dim2 dim3 dim4
322  syn keyword fortranTypeCUDA         cudadeviceprop cuda_count_kind cuda_stream_kind
323  syn keyword fortranTypeCUDA         cudaEvent cudaFuncAttributes cudaArrayPtr
324  syn keyword fortranTypeCUDA         cudaSymbol cudaChannelFormatDesc cudaPitchedPtr
325  syn keyword fortranTypeCUDA         cudaExtent cudaMemcpy3DParms
326  syn keyword fortranTypeCUDA         cudaFuncCachePreferNone cudaFuncCachePreferShared
327  syn keyword fortranTypeCUDA         cudaFuncCachePreferL1 cudaLimitStackSize
328  syn keyword fortranTypeCUDA         cudaLimitPrintfSize cudaLimitMallocHeapSize
329  syn keyword fortranTypeCUDA         cudaSharedMemBankSizeDefault cudaSharedMemBankSizeFourByte cudaSharedMemBankSizeEightByte
330  syn keyword fortranTypeCUDA         cudaEventDefault cudaEventBlockingSync cudaEventDisableTiming
331  syn keyword fortranTypeCUDA         cudaMemcpyHostToDevice cudaMemcpyDeviceToHost
332  syn keyword fortranTypeCUDA         cudaMemcpyDeviceToDevice
333  syn keyword fortranTypeCUDA         cudaErrorNotReady cudaSuccess cudaErrorInvalidValue
334  syn keyword fortranTypeCUDA         c_devptr
335
336  syn match fortranStringCUDA         "blockidx%[xyz]"
337  syn match fortranStringCUDA         "blockdim%[xyz]"
338  syn match fortranStringCUDA         "griddim%[xyz]"
339  syn match fortranStringCUDA         "threadidx%[xyz]"
340
341  syn keyword fortranIntrinsicCUDA    warpsize syncthreads syncthreads_and syncthreads_count syncthreads_or threadfence threadfence_block threadfence_system gpu_time allthreads anythread ballot
342  syn keyword fortranIntrinsicCUDA    atomicadd atomicsub atomicmax atomicmin atomicand atomicor atomicxor atomicexch atomicinc atomicdec atomiccas sizeof __shfl __shfl_up __shfl_down __shfl_xor
343  syn keyword fortranIntrinsicCUDA    cudaChooseDevice cudaDeviceGetCacheConfig cudaDeviceGetLimit cudaDeviceGetSharedMemConfig cudaDeviceReset cudaDeviceSetCacheConfig cudaDeviceSetLimit cudaDeviceSetSharedMemConfig cudaDeviceSynchronize cudaGetDevice cudaGetDeviceCount cudaGetDeviceProperties cudaSetDevice cudaSetDeviceFlags cudaSetValidDevices
344  syn keyword fortranIntrinsicCUDA    cudaThreadExit cudaThreadSynchronize cudaGetLastError cudaGetErrorString cudaPeekAtLastError cudaStreamCreate cudaStreamDestroy cudaStreamQuery cudaStreamSynchronize cudaStreamWaitEvent cudaEventCreate cudaEventCreateWithFlags cudaEventDestroy cudaEventElapsedTime cudaEventQuery cudaEventRecord cudaEventSynchronize
345  syn keyword fortranIntrinsicCUDA    cudaFuncGetAttributes cudaFuncSetCacheConfig cudaFuncSetSharedMemConfig cudaSetDoubleForDevice cudaSetDoubleForHost cudaFree cudaFreeArray cudaFreeHost cudaGetSymbolAddress cudaGetSymbolSize
346  syn keyword fortranIntrinsicCUDA    cudaHostAlloc cudaHostGetDevicePointer cudaHostGetFlags cudaHostRegister cudaHostUnregister cudaMalloc cudaMallocArray cudaMallocHost cudaMallocPitch cudaMalloc3D cudaMalloc3DArray
347  syn keyword fortranIntrinsicCUDA    cudaMemcpy cudaMemcpyArraytoArray cudaMemcpyAsync cudaMemcpyFromArray cudaMemcpyFromSymbol cudaMemcpyFromSymbolAsync cudaMemcpyPeer cudaMemcpyPeerAsync cudaMemcpyToArray cudaMemcpyToSymbol cudaMemcpyToSymbolAsync cudaMemcpy2D cudaMemcpy2DArrayToArray cudaMemcpy2DAsync cudaMemcpy2DFromArray cudaMemcpy2DToArray cudaMemcpy3D cudaMemcpy3DAsync
348  syn keyword fortranIntrinsicCUDA    cudaMemGetInfo cudaMemset cudaMemset2D cudaMemset3D cudaDeviceCanAccessPeer cudaDeviceDisablePeerAccess cudaDeviceEnablePeerAccess cudaPointerGetAttributes cudaDriverGetVersion cudaRuntimeGetVersion
349
350  syn region none matchgroup=fortranType start="<<<" end=">>>" contains=ALLBUT,none
351endif
352
353syn cluster fortranCommentGroup contains=fortranTodo
354
355if (b:fortran_fixed_source == 1)
356  if !exists("fortran_have_tabs")
357    "Flag items beyond column 72
358    syn match fortranSerialNumber	excludenl "^.\{73,}$"lc=72
359    "Flag left margin errors
360    syn match fortranLabelError	"^.\{-,4}[^0-9 ]" contains=fortranTab
361    syn match fortranLabelError	"^.\{4}\d\S"
362  endif
363  syn match fortranComment		excludenl "^[!c*].*$" contains=@fortranCommentGroup,@spell
364  syn match fortranLeftMargin		transparent "^ \{5}"
365  syn match fortranContinueMark		display "^.\{5}\S"lc=5
366else
367  syn match fortranContinueMark		display "&"
368endif
369
370syn match fortranComment	excludenl "!.*$" contains=@fortranCommentGroup,@spell
371
372"cpp is often used with Fortran
373syn match	cPreProc		"^\s*#\s*\(define\|ifdef\)\>.*"
374syn match	cPreProc		"^\s*#\s*\(elif\|if\)\>.*"
375syn match	cPreProc		"^\s*#\s*\(ifndef\|undef\)\>.*"
376syn match	cPreCondit		"^\s*#\s*\(else\|endif\)\>.*"
377syn region	cIncluded	contained start=+"[^(]+ skip=+\\\\\|\\"+ end=+"+ contains=fortranLeftMargin,fortranContinueMark,fortranSerialNumber
378syn match	cIncluded		contained "<[^>]*>"
379syn match	cInclude		"^\s*#\s*include\>\s*["<]" contains=cIncluded
380
381"Synchronising limits assume that comment and continuation lines are not mixed
382if exists("fortran_fold") || exists("fortran_more_precise")
383  syn sync fromstart
384elseif (b:fortran_fixed_source == 0)
385  syn sync linecont "&" minlines=30
386else
387  syn sync minlines=30
388endif
389
390if exists("fortran_fold")
391
392  if (b:fortran_fixed_source == 1)
393    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
394    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
395    syn region fortranModule transparent fold keepend start="^\s*module\s\+\(procedure\)\@!\z(\a\w*\)" skip="^\([!c*]\|\s*#\).*$" excludenl end="\<end\s*\(module\(\s\+\z1\>\)\=\|$\)" contains=ALLBUT,fortranProgram
396    syn region fortranFunction transparent fold keepend extend start="^\s*\(elemental \|pure \|impure \|module \|recursive \)\=\s*\(\(\(real \|integer \|logical \|complex \|double \s*precision \)\s*\((\(\s*kind\s*=\)\=\s*\w\+\s*)\)\=\)\|type\s\+(\s*\w\+\s*) \|character \((\(\s*len\s*=\)\=\s*\d\+\s*)\|(\(\s*kind\s*=\)\=\s*\w\+\s*)\)\=\)\=\s*function\s\+\z(\a\w*\)" skip="^\([!c*]\|\s*#\).*$" excludenl end="\<end\s*\($\|function\(\s\+\z1\>\)\=\)" contains=ALLBUT,fortranProgram,fortranModule
397    syn region fortranSubroutine transparent fold keepend extend start="^\s*\(elemental \|pure \|impure \|module \|recursive \)\=\s*subroutine\s\+\z(\a\w*\)" skip="^\([!c*]\|\s*#\).*$" excludenl end="\<end\s*\($\|subroutine\(\s\+\z1\>\)\=\)" contains=ALLBUT,fortranProgram,fortranModule
398    syn region fortranBlockData transparent fold keepend start="\<block\s*data\(\s\+\z(\a\w*\)\)\=" skip="^\([!c*]\|\s*#\).*$" excludenl end="\<end\s*\($\|block\s*data\(\s\+\z1\>\)\=\)" contains=ALLBUT,fortranProgram,fortranModule,fortranSubroutine,fortranFunction,fortran77Loop,fortranCase,fortran90Loop,fortranIfBlock
399    syn region fortranInterface transparent fold keepend extend start="^\s*\(abstract \)\=\s*interface\>" skip="^\([!c*]\|\s*#\).*$" 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*\(public\|private\|abstract\)\)\=\s*::" skip="^\([!c*]\|\s*#\).*$" excludenl end="\<end\s*type\>" contains=ALLBUT,fortranProgram,fortranModule,fortran77Loop,fortranCase,fortran90Loop,fortranIfBlock,fortranInterface
401  else
402    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
403    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
404    syn region fortranModule transparent fold keepend start="^\s*module\s\+\(procedure\)\@!\z(\a\w*\)" skip="^\s*[!#].*$" excludenl end="\<end\s*\(module\(\s\+\z1\>\)\=\|$\)" contains=ALLBUT,fortranProgram
405    syn region fortranFunction transparent fold keepend extend start="^\s*\(elemental \|pure \|impure \|module \|recursive \)\=\s*\(\(\(real \|integer \|logical \|complex \|double \s*precision \)\s*\((\(\s*kind\s*=\)\=\s*\w\+\s*)\)\=\)\|type\s\+(\s*\w\+\s*) \|character \((\(\s*len\s*=\)\=\s*\d\+\s*)\|(\(\s*kind\s*=\)\=\s*\w\+\s*)\)\=\)\=\s*function\s\+\z(\a\w*\)" skip="^\s*[!#].*$" excludenl end="\<end\s*\($\|function\(\s\+\z1\>\)\=\)" contains=ALLBUT,fortranProgram,fortranModule
406    syn region fortranSubroutine transparent fold keepend extend start="^\s*\(elemental \|pure \|impure \|module \|recursive \)\=\s*subroutine\s\+\z(\a\w*\)" skip="^\s*[!#].*$" excludenl end="\<end\s*\($\|subroutine\(\s\+\z1\>\)\=\)" contains=ALLBUT,fortranProgram,fortranModule
407    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
408    syn region fortranInterface transparent fold keepend extend start="^\s*\(abstract \)\=\s*interface\>" skip="^\s*[!#].*$" excludenl end="\<end\s*interface\>" contains=ALLBUT,fortranProgram,fortranModule,fortran77Loop,fortranCase,fortran90Loop,fortranIfBlock
409    syn region fortranTypeDef transparent fold keepend extend start="^\s*type\s*\(,\s*\(public\|private\|abstract\)\)\=\s*::" skip="^\s*[!#].*$" excludenl end="\<end\s*type\>" contains=ALLBUT,fortranProgram,fortranModule,fortran77Loop,fortranCase,fortran90Loop,fortranIfBlock,fortranInterface
410  endif
411
412  if exists("fortran_fold_conditionals")
413    if (b:fortran_fixed_source == 1)
414      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
415      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
416      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
417      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
418    else
419      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
420      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
421      syn region fortranIfBlock transparent fold keepend extend start="\(\<e\(nd\|lse\)\s\+\)\@<!\<if\s*(\(.\|&\s*\n\)\+)\(\s\|&\s*\n\)*then\>" skip="^\s*[!#].*$" end="\<end\s*if\>" contains=ALLBUT,fortranUnitHeader,fortranStructure,fortranStorageClass,fortranType,fortranProgram,fortranModule,fortranSubroutine,fortranFunction,fortranBlockData
422      syn region fortranCase transparent fold keepend extend start="\<select\s*case\>" skip="^\s*[!#].*$" end="\<end\s*select\>" contains=ALLBUT,fortranUnitHeader,fortranStructure,fortranStorageClass,fortranType,fortranProgram,fortranModule,fortranSubroutine,fortranFunction,fortranBlockData
423    endif
424  endif
425
426  if exists("fortran_fold_multilinecomments")
427    if (b:fortran_fixed_source == 1)
428      syn match fortranMultiLineComments transparent fold "\(^[!c*].*\(\n\|\%$\)\)\{4,}" contains=ALLBUT,fortranMultiCommentLines
429    else
430      syn match fortranMultiLineComments transparent fold "\(^\s*!.*\(\n\|\%$\)\)\{4,}" contains=ALLBUT,fortranMultiCommentLines
431    endif
432  endif
433endif
434
435" Define the default highlighting.
436" The default highlighting differs for each dialect.
437" Transparent groups:
438" fortranParen, fortranLeftMargin
439" fortranProgram, fortranModule, fortranSubroutine, fortranFunction,
440" fortranBlockData
441" fortran77Loop, fortran90Loop, fortranIfBlock, fortranCase
442" fortranMultiCommentLines
443hi def link fortranKeyword 	Keyword
444hi def link fortranConstructName	Identifier
445hi def link fortranConditional	Conditional
446hi def link fortranRepeat	Repeat
447hi def link fortranTodo		Todo
448hi def link fortranContinueMark	Special
449hi def link fortranString	String
450hi def link fortranNumber	Number
451hi def link fortranOperator	Operator
452hi def link fortranBoolean	Boolean
453hi def link fortranLabelError	Error
454hi def link fortranObsolete	Todo
455hi def link fortranType		Type
456hi def link fortranStructure	Type
457hi def link fortranStorageClass	StorageClass
458hi def link fortranCall		Function
459hi def link fortranUnitHeader	fortranPreCondit
460hi def link fortranReadWrite	Keyword
461hi def link fortranIO		Keyword
462hi def link fortranIntrinsic	Function
463hi def link fortranConstant	Constant
464
465" To stop deleted & obsolescent features being highlighted as Todo items,
466" comment out the next 5 lines and uncomment the 5 lines after that
467hi def link fortranUnitHeaderOb    fortranObsolete
468hi def link fortranKeywordOb       fortranObsolete
469hi def link fortranConditionalOb   fortranObsolete
470hi def link fortranTypeOb          fortranObsolete
471hi def link fortranKeywordDel      fortranObsolete
472"hi def link fortranUnitHeaderOb    fortranUnitHeader
473"hi def link fortranKeywordOb       fortranKeyword
474"hi def link fortranConditionalOb   fortranConditional
475"hi def link fortranTypeOb          fortranType
476"hi def link fortranKeywordDel      fortranKeyword
477
478if b:fortran_dialect == "F"
479  hi! def link fortranIntrinsicR	fortranObsolete
480  hi! def link fortranUnitHeaderR	fortranObsolete
481  hi! def link fortranTypeR		fortranObsolete
482  hi! def link fortranStorageClassR	fortranObsolete
483  hi! def link fortranOperatorR 	fortranObsolete
484  hi! def link fortranInclude   	fortranObsolete
485  hi! def link fortranLabelNumber	fortranObsolete
486  hi! def link fortranTarget	        fortranObsolete
487  hi! def link fortranFloatIll	        fortranObsolete
488  hi! def link fortranIOR		fortranObsolete
489  hi! def link fortranKeywordR	        fortranObsolete
490  hi! def link fortranStringR	        fortranObsolete
491  hi! def link fortranConditionalR	fortranObsolete
492else
493  hi! def link fortranIntrinsicR	fortranIntrinsic
494  hi! def link fortranUnitHeaderR	fortranPreCondit
495  hi! def link fortranTypeR		fortranType
496  hi! def link fortranStorageClassR	fortranStorageClass
497  hi! def link fortranOperatorR	        fortranOperator
498  hi! def link fortranInclude	        Include
499  hi! def link fortranLabelNumber	Special
500  hi! def link fortranTarget	        Special
501  hi! def link fortranFloatIll	        fortranFloat
502  hi! def link fortranIOR		fortranIO
503  hi! def link fortranKeywordR	        fortranKeyword
504  hi! def link fortranStringR	        fortranString
505  hi! def link fortranConditionalR	fortranConditional
506endif
507
508" CUDA
509hi def link fortranIntrinsicCUDA        fortranIntrinsic
510hi def link fortranTypeCUDA             fortranType
511hi def link fortranStringCUDA           fortranString
512
513hi def link fortranFormatSpec	Identifier
514hi def link fortranFloat	Float
515hi def link fortranPreCondit	PreCondit
516hi def link cIncluded		fortranString
517hi def link cInclude		Include
518hi def link cPreProc		PreProc
519hi def link cPreCondit		PreCondit
520hi def link fortranParenError	Error
521hi def link fortranComment	Comment
522hi def link fortranSerialNumber	Todo
523hi def link fortranTab		Error
524
525" Uncomment the next line if you use extra intrinsics provided by vendors
526"hi def link fortranExtraIntrinsic	Function
527
528let b:current_syntax = "fortran"
529
530let &cpo = s:cpo_save
531unlet s:cpo_save
532" vim: ts=8 tw=132
533