mirror of
https://github.com/vim/vim
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287 lines
10 KiB
VimL
287 lines
10 KiB
VimL
" Vim syntax file
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" Language: Ada (95)
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" Maintainer: David A. Wheeler <dwheeler@dwheeler.com>
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" URL: http://www.dwheeler.com/vim
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" Last Change: 2001-11-02
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" Former Maintainer: Simon Bradley <simon.bradley@pitechnology.com>
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" (was <sib93@aber.ac.uk>)
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" Other contributors: Preben Randhol.
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" The formal spec of Ada95 (ARM) is the "Ada95 Reference Manual".
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" For more Ada95 info, see http://www.gnuada.org and http://www.adapower.com.
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" This vim syntax file works on vim 5.6, 5.7, 5.8 and 6.x.
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" It implements Bram Moolenaar's April 25, 2001 recommendations to make
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" the syntax file maximally portable across different versions of vim.
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" If vim 6.0+ is available,
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" this syntax file takes advantage of the vim 6.0 advanced pattern-matching
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" functions to avoid highlighting uninteresting leading spaces in
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" some expressions containing "with" and "use".
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" For version 5.x: Clear all syntax items
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" For version 6.x: Quit when a syntax file was already loaded
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if version < 600
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syntax clear
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elseif exists("b:current_syntax")
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finish
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endif
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" Ada is entirely case-insensitive.
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syn case ignore
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" We don't need to look backwards to highlight correctly;
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" this speeds things up greatly.
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syn sync minlines=1 maxlines=1
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" Highlighting commands. There are 69 reserved words in total in Ada95.
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" Some keywords are used in more than one way. For example:
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" 1. "end" is a general keyword, but "end if" ends a Conditional.
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" 2. "then" is a conditional, but "and then" is an operator.
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" Standard Exceptions (including I/O).
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" We'll highlight the standard exceptions, similar to vim's Python mode.
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" It's possible to redefine the standard exceptions as something else,
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" but doing so is very bad practice, so simply highlighting them makes sense.
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syn keyword adaException Constraint_Error Program_Error Storage_Error
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syn keyword adaException Tasking_Error
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syn keyword adaException Status_Error Mode_Error Name_Error Use_Error
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syn keyword adaException Device_Error End_Error Data_Error Layout_Error
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syn keyword adaException Length_Error Pattern_Error Index_Error
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syn keyword adaException Translation_Error
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syn keyword adaException Time_Error Argument_Error
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syn keyword adaException Tag_Error
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syn keyword adaException Picture_Error
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" Interfaces
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syn keyword adaException Terminator_Error Conversion_Error
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syn keyword adaException Pointer_Error Dereference_Error Update_Error
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" This isn't in the Ada spec, but a GNAT extension.
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syn keyword adaException Assert_Failure
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" We don't list ALL exceptions defined in particular compilers (e.g., GNAT),
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" because it's quite reasonable to define those phrases as non-exceptions.
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" We don't normally highlight types in package Standard
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" (Integer, Character, Float, etc.). I don't think it looks good
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" with the other type keywords, and many Ada programs define
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" so many of their own types that it looks inconsistent.
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" However, if you want this highlighting, turn on "ada_standard_types".
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" For package Standard's definition, see ARM section A.1.
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if exists("ada_standard_types")
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syn keyword adaBuiltinType Boolean Integer Natural Positive Float
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syn keyword adaBuiltinType Character Wide_Character
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syn keyword adaBuiltinType String Wide_String
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syn keyword adaBuiltinType Duration
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" These aren't listed in ARM section A.1's code, but they're noted as
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" options in ARM sections 3.5.4 and 3.5.7:
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syn keyword adaBuiltinType Short_Integer Short_Short_Integer
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syn keyword adaBuiltinType Long_Integer Long_Long_Integer
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syn keyword adaBuiltinType Short_Float Short_Short_Float
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syn keyword adaBuiltinType Long_Float Long_Long_Float
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endif
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" There are MANY other predefined types; they've not been added, because
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" determining when they're a type requires context in general.
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" One potential addition would be Unbounded_String.
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syn keyword adaLabel others
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syn keyword adaOperator abs mod not rem xor
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syn match adaOperator "\<and\>"
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syn match adaOperator "\<and\s\+then\>"
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syn match adaOperator "\<or\>"
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syn match adaOperator "\<or\s\+else\>"
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syn match adaOperator "[-+*/<>&]"
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syn keyword adaOperator **
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syn match adaOperator "[/<>]="
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syn keyword adaOperator =>
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syn match adaOperator "\.\."
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syn match adaOperator "="
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" We won't map "adaAssignment" by default, but we need to map ":=" to
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" something or the "=" inside it will be mislabelled as an operator.
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" Note that in Ada, assignment (:=) is not considered an operator.
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syn match adaAssignment ":="
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" Handle the box, <>, specially:
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syn keyword adaSpecial <>
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" Numbers, including floating point, exponents, and alternate bases.
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syn match adaNumber "\<\d[0-9_]*\(\.\d[0-9_]*\)\=\([Ee][+-]\=\d[0-9_]*\)\=\>"
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syn match adaNumber "\<\d\d\=#\x[0-9A-Fa-f_]*\(\.\x[0-9A-Fa-f_]*\)\=#\([Ee][+-]\=\d[0-9_]*\)\="
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" Identify leading numeric signs. In "A-5" the "-" is an operator,
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" but in "A:=-5" the "-" is a sign. This handles "A3+-5" (etc.) correctly.
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" This assumes that if you put a don't put a space after +/- when it's used
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" as an operator, you won't put a space before it either -- which is true
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" in code I've seen.
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syn match adaSign "[[:space:]<>=(,|:;&*/+-][+-]\d"lc=1,hs=s+1,he=e-1,me=e-1
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" Labels for the goto statement.
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syn region adaLabel start="<<" end=">>"
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" Boolean Constants.
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syn keyword adaBoolean true false
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" Warn people who try to use C/C++ notation erroneously:
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syn match adaError "//"
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syn match adaError "/\*"
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syn match adaError "=="
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if exists("ada_space_errors")
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if !exists("ada_no_trail_space_error")
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syn match adaSpaceError excludenl "\s\+$"
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endif
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if !exists("ada_no_tab_space_error")
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syn match adaSpaceError " \+\t"me=e-1
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endif
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endif
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" Unless special ("end loop", "end if", etc.), "end" marks the end of a
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" begin, package, task etc. Assiging it to adaEnd.
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syn match adaEnd "\<end\>"
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syn keyword adaPreproc pragma
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syn keyword adaRepeat exit for loop reverse while
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syn match adaRepeat "\<end\s\+loop\>"
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syn keyword adaStatement accept delay goto raise requeue return
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syn keyword adaStatement terminate
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syn match adaStatement "\<abort\>"
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" Handle Ada's record keywords.
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" 'record' usually starts a structure, but "with null record;" does not,
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" and 'end record;' ends a structure. The ordering here is critical -
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" 'record;' matches a "with null record", so make it a keyword (this can
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" match when the 'with' or 'null' is on a previous line).
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" We see the "end" in "end record" before the word record, so we match that
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" pattern as adaStructure (and it won't match the "record;" pattern).
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syn match adaStructure "\<record\>"
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syn match adaStructure "\<end\s\+record\>"
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syn match adaKeyword "\<record;"me=e-1
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syn keyword adaStorageClass abstract access aliased array at constant delta
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syn keyword adaStorageClass digits limited of private range tagged
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syn keyword adaTypedef subtype type
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" Conditionals. "abort" after "then" is a conditional of its own.
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syn match adaConditional "\<then\>"
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syn match adaConditional "\<then\s\+abort\>"
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syn match adaConditional "\<else\>"
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syn match adaConditional "\<end\s\+if\>"
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syn match adaConditional "\<end\s\+case\>"
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syn match adaConditional "\<end\s\+select\>"
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syn keyword adaConditional if case select
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syn keyword adaConditional elsif when
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syn keyword adaKeyword all do exception in is new null out
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syn keyword adaKeyword separate until
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" These keywords begin various constructs, and you _might_ want to
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" highlight them differently.
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syn keyword adaBegin begin body declare entry function generic
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syn keyword adaBegin package procedure protected renames task
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if exists("ada_withuse_ordinary")
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" Don't be fancy. Display "with" and "use" as ordinary keywords in all cases.
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syn keyword adaKeyword with use
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else
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" Highlight "with" and "use" clauses like C's "#include" when they're used
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" to reference other compilation units; otherwise they're ordinary keywords.
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" If we have vim 6.0 or later, we'll use its advanced pattern-matching
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" capabilities so that we won't match leading spaces.
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syn match adaKeyword "\<with\>"
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syn match adaKeyword "\<use\>"
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if version < 600
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syn match adaBeginWith "^\s*\(\(with\(\s\+type\)\=\)\|\(use\)\)\>" contains=adaInc
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syn match adaSemiWith ";\s*\(\(with\(\s\+type\)\=\)\|\(use\)\)\>"lc=1 contains=adaInc
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else
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syn match adaBeginWith "^\s*\zs\(\(with\(\s\+type\)\=\)\|\(use\)\)\>" contains=adaInc
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syn match adaSemiWith ";\s*\zs\(\(with\(\s\+type\)\=\)\|\(use\)\)\>" contains=adaInc
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endif
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syn match adaInc "\<with\>" contained contains=NONE
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syn match adaInc "\<with\s\+type\>" contained contains=NONE
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syn match adaInc "\<use\>" contained contains=NONE
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" Recognize "with null record" as a keyword (even the "record").
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syn match adaKeyword "\<with\s\+null\s\+record\>"
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" Consider generic formal parameters of subprograms and packages as keywords.
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if version < 600
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syn match adaKeyword ";\s*with\s\+\(function\|procedure\|package\)\>"
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syn match adaKeyword "^\s*with\s\+\(function\|procedure\|package\)\>"
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else
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syn match adaKeyword ";\s*\zswith\s\+\(function\|procedure\|package\)\>"
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syn match adaKeyword "^\s*\zswith\s\+\(function\|procedure\|package\)\>"
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endif
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endif
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" String and character constants.
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syn region adaString start=+"+ skip=+""+ end=+"+
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syn match adaCharacter "'.'"
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" Todo (only highlighted in comments)
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syn keyword adaTodo contained TODO FIXME XXX
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" Comments.
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syn region adaComment oneline contains=adaTodo start="--" end="$"
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" Define the default highlighting.
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" For version 5.7 and earlier: only when not done already
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" For version 5.8 and later: only when an item doesn't have highlighting yet
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if version >= 508 || !exists("did_ada_syn_inits")
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if version < 508
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let did_ada_syn_inits = 1
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command -nargs=+ HiLink hi link <args>
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else
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command -nargs=+ HiLink hi def link <args>
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endif
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" The default methods for highlighting. Can be overridden later.
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HiLink adaCharacter Character
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HiLink adaComment Comment
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HiLink adaConditional Conditional
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HiLink adaKeyword Keyword
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HiLink adaLabel Label
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HiLink adaNumber Number
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HiLink adaSign Number
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HiLink adaOperator Operator
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HiLink adaPreproc PreProc
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HiLink adaRepeat Repeat
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HiLink adaSpecial Special
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HiLink adaStatement Statement
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HiLink adaString String
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HiLink adaStructure Structure
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HiLink adaTodo Todo
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HiLink adaType Type
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HiLink adaTypedef Typedef
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HiLink adaStorageClass StorageClass
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HiLink adaBoolean Boolean
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HiLink adaException Exception
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HiLink adaInc Include
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HiLink adaError Error
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HiLink adaSpaceError Error
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HiLink adaBuiltinType Type
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if exists("ada_begin_preproc")
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" This is the old default display:
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HiLink adaBegin PreProc
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HiLink adaEnd PreProc
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else
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" This is the new default display:
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HiLink adaBegin Keyword
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HiLink adaEnd Keyword
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endif
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delcommand HiLink
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endif
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let b:current_syntax = "ada"
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" vim: ts=8
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