Mercurial > vim
annotate runtime/indent/fortran.vim @ 10091:9e5e3392f9b6
Added tag v7.4.2316 for changeset 68303019acc994c41e623b6be3235f7342f2be67
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Sat, 03 Sep 2016 19:00:06 +0200 |
| parents | 43efa4f5a8ea |
| children | 876fbdd84e52 |
| rev | line source |
|---|---|
| 7 | 1 " Vim indent file |
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2 " Language: Fortran 2008 (and older: Fortran 2003, 95, 90, and 77) |
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3 " Version: 0.45 |
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4 " Last Change: 2016 Aug. 29 |
| 6530 | 5 " Maintainer: Ajit J. Thakkar <ajit@unb.ca>; <http://www2.unb.ca/~ajit/> |
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6 " Usage: For instructions, do :help fortran-indent from Vim |
| 6530 | 7 " Credits: |
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8 " Useful suggestions were made by: Albert Oliver Serra and Takuya Fujiwara. |
| 7 | 9 |
| 10 " Only load this indent file when no other was loaded. | |
| 11 if exists("b:did_indent") | |
| 12 finish | |
| 13 endif | |
| 14 let b:did_indent = 1 | |
| 15 | |
| 3237 | 16 let s:cposet=&cpoptions |
| 17 set cpoptions&vim | |
| 18 | |
| 7 | 19 setlocal indentkeys+==~end,=~case,=~if,=~else,=~do,=~where,=~elsewhere,=~select |
| 2908 | 20 setlocal indentkeys+==~endif,=~enddo,=~endwhere,=~endselect,=~elseif |
| 21 setlocal indentkeys+==~type,=~interface,=~forall,=~associate,=~block,=~enum | |
| 22 setlocal indentkeys+==~endforall,=~endassociate,=~endblock,=~endenum | |
| 23 if exists("b:fortran_indent_more") || exists("g:fortran_indent_more") | |
| 24 setlocal indentkeys+==~function,=~subroutine,=~module,=~contains,=~program | |
| 25 setlocal indentkeys+==~endfunction,=~endsubroutine,=~endmodule | |
| 26 setlocal indentkeys+==~endprogram | |
| 27 endif | |
| 7 | 28 |
| 29 " Determine whether this is a fixed or free format source file | |
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30 " if this hasn't been done yet using the priority: |
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31 " buffer-local value |
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32 " > global value |
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33 " > file extension as in Intel ifort, gcc (gfortran), NAG, Pathscale, and Cray compilers |
| 7 | 34 if !exists("b:fortran_fixed_source") |
| 35 if exists("fortran_free_source") | |
| 36 " User guarantees free source form | |
| 37 let b:fortran_fixed_source = 0 | |
| 38 elseif exists("fortran_fixed_source") | |
| 39 " User guarantees fixed source form | |
| 40 let b:fortran_fixed_source = 1 | |
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41 elseif expand("%:e") ==? "f\<90\|95\|03\|08\>" |
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42 " Free-form file extension defaults as in Intel ifort, gcc(gfortran), NAG, Pathscale, and Cray compilers |
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43 let b:fortran_fixed_source = 0 |
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commit https://github.com/vim/vim/commit/256972a9849b5d575b62a6a71be5b6934b5b0e8b
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44 elseif expand("%:e") ==? "f\|f77\|for" |
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45 " Fixed-form file extension defaults |
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46 let b:fortran_fixed_source = 1 |
| 7 | 47 else |
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48 " Modern fortran still allows both fixed and free source form |
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49 " Assume fixed source form unless signs of free source form |
| 6530 | 50 " are detected in the first five columns of the first s:lmax lines. |
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51 " Detection becomes more accurate and time-consuming if more lines |
| 7 | 52 " are checked. Increase the limit below if you keep lots of comments at |
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53 " the very top of each file and you have a fast computer. |
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54 let s:lmax = 500 |
| 7 | 55 if ( s:lmax > line("$") ) |
| 56 let s:lmax = line("$") | |
| 57 endif | |
| 58 let b:fortran_fixed_source = 1 | |
| 59 let s:ln=1 | |
| 60 while s:ln <= s:lmax | |
| 61 let s:test = strpart(getline(s:ln),0,5) | |
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62 if s:test !~ '^[Cc*]' && s:test !~ '^ *[!#]' && s:test =~ '[^ 0-9\t]' && s:test !~ '^[ 0-9]*\t' |
| 7 | 63 let b:fortran_fixed_source = 0 |
| 64 break | |
| 65 endif | |
| 66 let s:ln = s:ln + 1 | |
| 67 endwhile | |
| 68 endif | |
| 69 endif | |
| 70 | |
| 71 " Define the appropriate indent function but only once | |
| 72 if (b:fortran_fixed_source == 1) | |
| 73 setlocal indentexpr=FortranGetFixedIndent() | |
| 74 if exists("*FortranGetFixedIndent") | |
| 75 finish | |
| 76 endif | |
| 77 else | |
| 78 setlocal indentexpr=FortranGetFreeIndent() | |
| 79 if exists("*FortranGetFreeIndent") | |
| 80 finish | |
| 81 endif | |
| 82 endif | |
| 83 | |
| 84 function FortranGetIndent(lnum) | |
| 85 let ind = indent(a:lnum) | |
| 86 let prevline=getline(a:lnum) | |
| 87 " Strip tail comment | |
| 88 let prevstat=substitute(prevline, '!.*$', '', '') | |
| 2908 | 89 let prev2line=getline(a:lnum-1) |
| 90 let prev2stat=substitute(prev2line, '!.*$', '', '') | |
| 7 | 91 |
| 92 "Indent do loops only if they are all guaranteed to be of do/end do type | |
| 1125 | 93 if exists("b:fortran_do_enddo") || exists("g:fortran_do_enddo") |
| 7 | 94 if prevstat =~? '^\s*\(\d\+\s\)\=\s*\(\a\w*\s*:\)\=\s*do\>' |
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95 let ind = ind + shiftwidth() |
| 7 | 96 endif |
| 97 if getline(v:lnum) =~? '^\s*\(\d\+\s\)\=\s*end\s*do\>' | |
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98 let ind = ind - shiftwidth() |
| 7 | 99 endif |
| 100 endif | |
| 101 | |
| 2908 | 102 "Add a shiftwidth to statements following if, else, else if, case, |
| 103 "where, else where, forall, type, interface and associate statements | |
| 104 if prevstat =~? '^\s*\(case\|else\|else\s*if\|else\s*where\)\>' | |
| 105 \ ||prevstat=~? '^\s*\(type\|interface\|associate\|enum\)\>' | |
| 106 \ ||prevstat=~?'^\s*\(\d\+\s\)\=\s*\(\a\w*\s*:\)\=\s*\(forall\|where\|block\)\>' | |
| 107 \ ||prevstat=~? '^\s*\(\d\+\s\)\=\s*\(\a\w*\s*:\)\=\s*if\>' | |
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108 let ind = ind + shiftwidth() |
| 7 | 109 " Remove unwanted indent after logical and arithmetic ifs |
| 110 if prevstat =~? '\<if\>' && prevstat !~? '\<then\>' | |
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111 let ind = ind - shiftwidth() |
| 7 | 112 endif |
| 840 | 113 " Remove unwanted indent after type( statements |
| 2908 | 114 if prevstat =~? '^\s*type\s*(' |
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115 let ind = ind - shiftwidth() |
| 840 | 116 endif |
| 7 | 117 endif |
| 118 | |
| 2908 | 119 "Indent program units unless instructed otherwise |
| 120 if !exists("b:fortran_indent_less") && !exists("g:fortran_indent_less") | |
| 121 let prefix='\(\(pure\|impure\|elemental\|recursive\)\s\+\)\{,2}' | |
| 122 let type='\(\(integer\|real\|double\s\+precision\|complex\|logical' | |
| 123 \.'\|character\|type\|class\)\s*\S*\s\+\)\=' | |
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124 if prevstat =~? '^\s*\(module\|contains\/submodule\|program\)\>' |
| 2908 | 125 \ ||prevstat =~? '^\s*'.prefix.'subroutine\>' |
| 126 \ ||prevstat =~? '^\s*'.prefix.type.'function\>' | |
| 127 \ ||prevstat =~? '^\s*'.type.prefix.'function\>' | |
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128 let ind = ind + shiftwidth() |
| 2908 | 129 endif |
| 130 if getline(v:lnum) =~? '^\s*contains\>' | |
| 131 \ ||getline(v:lnum)=~? '^\s*end\s*' | |
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132 \ .'\(function\|subroutine\|module\/submodule\|program\)\>' |
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133 let ind = ind - shiftwidth() |
| 2908 | 134 endif |
| 135 endif | |
| 136 | |
| 137 "Subtract a shiftwidth from else, else if, elsewhere, case, end if, | |
| 138 " end where, end select, end forall, end interface, end associate, | |
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139 " end enum, end type, end block and end type statements |
| 7 | 140 if getline(v:lnum) =~? '^\s*\(\d\+\s\)\=\s*' |
| 2908 | 141 \. '\(else\|else\s*if\|else\s*where\|case\|' |
| 142 \. 'end\s*\(if\|where\|select\|interface\|' | |
| 6530 | 143 \. 'type\|forall\|associate\|enum\|block\)\)\>' |
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144 let ind = ind - shiftwidth() |
| 7 | 145 " Fix indent for case statement immediately after select |
| 2908 | 146 if prevstat =~? '\<select\s\+\(case\|type\)\>' |
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147 let ind = ind + shiftwidth() |
| 7 | 148 endif |
| 149 endif | |
| 150 | |
| 2908 | 151 "First continuation line |
| 152 if prevstat =~ '&\s*$' && prev2stat !~ '&\s*$' | |
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153 let ind = ind + shiftwidth() |
| 2908 | 154 endif |
| 155 "Line after last continuation line | |
| 6530 | 156 if prevstat !~ '&\s*$' && prev2stat =~ '&\s*$' && prevstat !~? '\<then\>' |
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157 let ind = ind - shiftwidth() |
| 2908 | 158 endif |
| 159 | |
| 7 | 160 return ind |
| 161 endfunction | |
| 162 | |
| 163 function FortranGetFreeIndent() | |
| 164 "Find the previous non-blank line | |
| 165 let lnum = prevnonblank(v:lnum - 1) | |
| 166 | |
| 167 "Use zero indent at the top of the file | |
| 168 if lnum == 0 | |
| 169 return 0 | |
| 170 endif | |
| 171 | |
| 172 let ind=FortranGetIndent(lnum) | |
| 173 return ind | |
| 174 endfunction | |
| 175 | |
| 176 function FortranGetFixedIndent() | |
| 177 let currline=getline(v:lnum) | |
| 178 "Don't indent comments, continuation lines and labelled lines | |
| 179 if strpart(currline,0,6) =~ '[^ \t]' | |
| 180 let ind = indent(v:lnum) | |
| 181 return ind | |
| 182 endif | |
| 183 | |
| 184 "Find the previous line which is not blank, not a comment, | |
| 185 "not a continuation line, and does not have a label | |
| 186 let lnum = v:lnum - 1 | |
| 187 while lnum > 0 | |
| 188 let prevline=getline(lnum) | |
| 189 if (prevline =~ "^[C*!]") || (prevline =~ "^\s*$") | |
| 190 \ || (strpart(prevline,5,1) !~ "[ 0]") | |
| 191 " Skip comments, blank lines and continuation lines | |
| 192 let lnum = lnum - 1 | |
| 193 else | |
| 194 let test=strpart(prevline,0,5) | |
| 195 if test =~ "[0-9]" | |
| 196 " Skip lines with statement numbers | |
| 197 let lnum = lnum - 1 | |
| 198 else | |
| 199 break | |
| 200 endif | |
| 201 endif | |
| 202 endwhile | |
| 203 | |
| 204 "First line must begin at column 7 | |
| 205 if lnum == 0 | |
| 206 return 6 | |
| 207 endif | |
| 208 | |
| 209 let ind=FortranGetIndent(lnum) | |
| 210 return ind | |
| 211 endfunction | |
| 212 | |
| 213 let &cpoptions=s:cposet | |
| 214 unlet s:cposet | |
| 215 | |
| 216 " vim:sw=2 tw=130 |