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asm.vim
" Vim syntax file " Language: GNU Assembler " Maintainer: Doug Kearns dougkearns@gmail.com " Previous Maintainers: Erik Wognsen <erik.wognsen@gmail.com> " Kevin Dahlhausen <kdahlhaus@yahoo.com> " Contributors: Ori Avtalion, Lakshay Garg " Last Change: 2020 Oct 31 " quit when a syntax file was already loaded if exists("b:current_syntax") finish endif let s:cpo_save = &cpo set cpo&vim syn case ignore " storage types syn match asmType "\.long" syn match asmType "\.ascii" syn match asmType "\.asciz" syn match asmType "\.byte" syn match asmType "\.double" syn match asmType "\.float" syn match asmType "\.hword" syn match asmType "\.int" syn match asmType "\.octa" syn match asmType "\.quad" syn match asmType "\.short" syn match asmType "\.single" syn match asmType "\.space" syn match asmType "\.string" syn match asmType "\.word" syn match asmIdentifier "[a-z_][a-z0-9_]*" syn match asmLabel "[a-z_][a-z0-9_]*:"he=e-1 " Various #'s as defined by GAS ref manual sec 3.6.2.1 " Technically, the first asmDecimal def is actually octal, " since the value of 0-7 octal is the same as 0-7 decimal, " I (Kevin) prefer to map it as decimal: syn match asmDecimal "\<0\+[1-7]\=\>" display syn match asmDecimal "\<[1-9]\d*\>" display syn match asmOctal "\<0[0-7][0-7]\+\>" display syn match asmHexadecimal "\<0[xX][0-9a-fA-F]\+\>" display syn match asmBinary "\<0[bB][0-1]\+\>" display syn match asmFloat "\<\d\+\.\d*\%(e[+-]\=\d\+\)\=\>" display syn match asmFloat "\.\d\+\%(e[+-]\=\d\+\)\=\>" display syn match asmFloat "\<\d\%(e[+-]\=\d\+\)\>" display syn match asmFloat "[+-]\=Inf\>\|\<NaN\>" display syn match asmFloat "\%(0[edfghprs]\)[+-]\=\d*\%(\.\d\+\)\%(e[+-]\=\d\+\)\=" display syn match asmFloat "\%(0[edfghprs]\)[+-]\=\d\+\%(\.\d\+\)\=\%(e[+-]\=\d\+\)\=" display " Avoid fighting the hexadecimal match for unicorn-like '0x' prefixed floats syn match asmFloat "\%(0x\)[+-]\=\d*\%(\.\d\+\)\%(e[+-]\=\d\+\)\=" display " Allow all characters to be escaped (and in strings) as these vary across " architectures [See sec 3.6.1.1 Strings] syn match asmCharacterEscape "\\." contained syn match asmCharacter "'\\\=." contains=asmCharacterEscape syn match asmStringEscape "\\\_." contained syn match asmStringEscape "\\\%(\o\{3}\|00[89]\)" contained display syn match asmStringEscape "\\x\x\+" contained display syn region asmString start="\"" end="\"" skip="\\\\\|\\\"" contains=asmStringEscape syn keyword asmTodo contained TODO FIXME XXX NOTE " GAS supports one type of multi line comments: syn region asmComment start="/\*" end="\*/" contains=asmTodo,@Spell " GAS (undocumentedly?) supports C++ style comments. Unlike in C/C++ however, " a backslash ending a C++ style comment does not extend the comment to the " next line (hence the syntax region does not define 'skip="\\$"') syn region asmComment start="//" end="$" keepend contains=asmTodo,@Spell " Line comment characters depend on the target architecture and command line " options and some comments may double as logical line number directives or " preprocessor commands. This situation is described at " http://sourceware.org/binutils/docs-2.22/as/Comments.html " Some line comment characters have other meanings for other targets. For " example, .type directives may use the `@' character which is also an ARM " comment marker. " As a compromise to accommodate what I arbitrarily assume to be the most " frequently used features of the most popular architectures (and also the " non-GNU assembly languages that use this syntax file because their asm files " are also named *.asm), the following are used as line comment characters: syn match asmComment "[#;!|].*" contains=asmTodo,@Spell " Side effects of this include: " - When `;' is used to separate statements on the same line (many targets " support this), all statements except the first get highlighted as " comments. As a remedy, remove `;' from the above. " - ARM comments are not highlighted correctly. For ARM, uncomment the " following two lines and comment the one above. "syn match asmComment "@.*" contains=asmTodo "syn match asmComment "^#.*" contains=asmTodo " Advanced users of specific architectures will probably want to change the " comment highlighting or use a specific, more comprehensive syntax file. syn match asmInclude "\.include" syn match asmCond "\.if" syn match asmCond "\.else" syn match asmCond "\.endif" syn match asmMacro "\.macro" syn match asmMacro "\.endm" " Assembler directives start with a '.' and may contain upper case (e.g., " .ABORT), numbers (e.g., .p2align), dash (e.g., .app-file) and underscore in " CFI directives (e.g., .cfi_startproc). This will also match labels starting " with '.', including the GCC auto-generated '.L' labels. syn match asmDirective "\.[A-Za-z][0-9A-Za-z-_]*" syn case match " Define the default highlighting. " Only when an item doesn't have highlighting yet " The default methods for highlighting. Can be overridden later hi def link asmSection Special hi def link asmLabel Label hi def link asmComment Comment hi def link asmTodo Todo hi def link asmDirective Statement hi def link asmInclude Include hi def link asmCond PreCondit hi def link asmMacro Macro if exists('g:asm_legacy_syntax_groups') hi def link hexNumber Number hi def link decNumber Number hi def link octNumber Number hi def link binNumber Number hi def link asmHexadecimal hexNumber hi def link asmDecimal decNumber hi def link asmOctal octNumber hi def link asmBinary binNumber else hi def link asmHexadecimal Number hi def link asmDecimal Number hi def link asmOctal Number hi def link asmBinary Number endif hi def link asmFloat Float hi def link asmString String hi def link asmStringEscape Special hi def link asmCharacter Character hi def link asmCharacterEscape Special hi def link asmIdentifier Identifier hi def link asmType Type let b:current_syntax = "asm" let &cpo = s:cpo_save unlet s:cpo_save " vim: nowrap sw=2 sts=2 ts=8 noet
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