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Code Issues Releases Activity

ARM ASM (#531)

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Kyle Baldwin 2021-07-17 15:24:23 -07:00 committed by GitHub
parent d402102976
commit a0e9618fbc
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72
lexers/a/armasm.go Normal file
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package a
import (
. "github.com/alecthomas/chroma" // nolint
"github.com/alecthomas/chroma/lexers/internal"
)
var ArmAsm = internal.Register(MustNewLazyLexer(
&Config{
Name: "ArmAsm",
Aliases: []string{"armasm"},
EnsureNL: true,
Filenames: []string{"*.s", "*.S"},
MimeTypes: []string{"text/x-armasm", "text/x-asm"},
},
armasmRules,
))
func armasmRules() Rules {
return Rules{
"commentsandwhitespace": {
{`\s+`, Text, nil},
{`[@;].*?\n`, CommentSingle, nil},
{`/\*.*?\*/`, CommentMultiline, nil},
},
"literal": {
// Binary
{`0b[01]+`, NumberBin, Pop(1)},
// Hex
{`0x\w{1,8}`, NumberHex, Pop(1)},
// Octal
{`0\d+`, NumberOct, Pop(1)},
// Float
{`\d+?\.\d+?`, NumberFloat, Pop(1)},
// Integer
{`\d+`, NumberInteger, Pop(1)},
// String
{`(")(.+)(")`, ByGroups(Punctuation, StringDouble, Punctuation), Pop(1)},
// Char
{`(')(.{1}|\\.{1})(')`, ByGroups(Punctuation, StringChar, Punctuation), Pop(1)},
},
"opcode": {
// Escape at line end
{`\n`, Text, Pop(1)},
// Comment
{`(@|;).*\n`, CommentSingle, Pop(1)},
// Whitespace
{`(\s+|,)`, Text, nil},
// Register by number
{`[rapcfxwbhsdqv]\d{1,2}`, NameClass, nil},
// Address by hex
{`=0x\w+`, ByGroups(Text, NameLabel), nil},
// Pseudo address by label
{`(=)(\w+)`, ByGroups(Text, NameLabel), nil},
// Immediate
{`#`, Text, Push("literal")},
},
"root": {
Include("commentsandwhitespace"),
// Directive with optional param
{`(\.\w+)([ \t]+\w+\s+?)?`, ByGroups(KeywordNamespace, NameLabel), nil},
// Label with data
{`(\w+)(:)(\s+\.\w+\s+)`, ByGroups(NameLabel, Punctuation, KeywordNamespace), Push("literal")},
// Label
{`(\w+)(:)`, ByGroups(NameLabel, Punctuation), nil},
// Syscall Op
{`svc\s+\w+`, NameNamespace, nil},
// Opcode
{`[a-zA-Z]+`, Text, Push("opcode")},
},
}
}

17
lexers/testdata/armasm.actual vendored Normal file
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@ Hello World in ARM Assembly for Linux system
.global _start
_start:
mov r7, #4 @ Setup service call 4 (write)
mov r0, #1 @ param 1 - File descriptor 1 = stdout
ldr r1, =hello @ param 2 - address of string to print
mov r2, #13 @ param 3 - length of hello world string
svc 0 @ ask linux to write to stdout
mov r7, #1 @ Setup service call 1 (exit)
mov r0, #0 @ param 1 - 0 = normal exit
svc 0 @ ask linux to terminate us
.data
hello: .ascii "Hello World!\n"

62
lexers/testdata/armasm.expected vendored Normal file
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[
{"type":"CommentSingle","value":"@ Hello World in ARM Assembly for Linux system\n"},
{"type":"Text","value":"\n"},
{"type":"KeywordNamespace","value":".global"},
{"type":"NameLabel","value":" _start\n"},
{"type":"Text","value":"\n"},
{"type":"NameLabel","value":"_start"},
{"type":"Punctuation","value":":"},
{"type":"Text","value":"\n mov "},
{"type":"NameClass","value":"r7"},
{"type":"Text","value":", #"},
{"type":"LiteralNumberInteger","value":"4"},
{"type":"Text","value":" "},
{"type":"CommentSingle","value":"@ Setup service call 4 (write)\n"},
{"type":"Text","value":" mov "},
{"type":"NameClass","value":"r0"},
{"type":"Text","value":", #"},
{"type":"LiteralNumberInteger","value":"1"},
{"type":"Text","value":" "},
{"type":"CommentSingle","value":"@ param 1 - File descriptor 1 = stdout\n"},
{"type":"Text","value":" ldr "},
{"type":"NameClass","value":"r1"},
{"type":"Text","value":", ="},
{"type":"NameLabel","value":"hello"},
{"type":"Text","value":" "},
{"type":"CommentSingle","value":"@ param 2 - address of string to print\n"},
{"type":"Text","value":" mov "},
{"type":"NameClass","value":"r2"},
{"type":"Text","value":", #"},
{"type":"LiteralNumberInteger","value":"13"},
{"type":"Text","value":" "},
{"type":"CommentSingle","value":"@ param 3 - length of hello world string\n"},
{"type":"Text","value":" "},
{"type":"NameNamespace","value":"svc 0"},
{"type":"Text","value":" "},
{"type":"CommentSingle","value":"@ ask linux to write to stdout\n"},
{"type":"Text","value":"\n mov "},
{"type":"NameClass","value":"r7"},
{"type":"Text","value":", #"},
{"type":"LiteralNumberInteger","value":"1"},
{"type":"Text","value":" "},
{"type":"CommentSingle","value":"@ Setup service call 1 (exit)\n"},
{"type":"Text","value":" mov "},
{"type":"NameClass","value":"r0"},
{"type":"Text","value":", #"},
{"type":"LiteralNumberInteger","value":"0"},
{"type":"Text","value":" "},
{"type":"CommentSingle","value":"@ param 1 - 0 = normal exit\n"},
{"type":"Text","value":" "},
{"type":"NameNamespace","value":"svc 0"},
{"type":"Text","value":" "},
{"type":"CommentSingle","value":"@ ask linux to terminate us\n"},
{"type":"Text","value":"\n"},
{"type":"KeywordNamespace","value":".data"},
{"type":"Text","value":"\n"},
{"type":"NameLabel","value":"hello"},
{"type":"Punctuation","value":":"},
{"type":"KeywordNamespace","value":" .ascii "},
{"type":"Punctuation","value":"\""},
{"type":"LiteralStringDouble","value":"Hello World!\\n"},
{"type":"Punctuation","value":"\""}
]