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kofukalecthomas
kofuk
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alecthomas
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Add lexer for Meson build system
Ported pygments' lexer using pygments2chroma.py.
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‎lexers/m/meson.go‎

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package m
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import (
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. "github.com/alecthomas/chroma" // nolint
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"github.com/alecthomas/chroma/lexers/internal"
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)
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// Meson lexer.
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var Meson = internal.Register(MustNewLazyLexer(
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&Config{
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Name: "Meson",
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Aliases: []string{"meson", "meson.build"},
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Filenames: []string{"meson.build", "meson_options.txt"},
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MimeTypes: []string{"text/x-meson"},
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},
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func() Rules {
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return Rules{
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"root": {
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{`#.*?$`, Comment, nil},
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{`'''.*'''`, LiteralStringSingle, nil},
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{`[1-9][0-9]*`, LiteralNumberInteger, nil},
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{`0o[0-7]+`, LiteralNumberOct, nil},
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{`0x[a-fA-F0-9]+`, LiteralNumberHex, nil},
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Include("string"),
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Include("keywords"),
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Include("expr"),
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{`[a-zA-Z_][a-zA-Z_0-9]*`, Name, nil},
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{`\s+`, TextWhitespace, nil},
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},
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"string": {
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{`[']{3}([']{0,2}([^\\']|\\(.|\n)))*[']{3}`, LiteralString, nil},
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{`'.*?(?<!\\)(\\\\)*?'`, LiteralString, nil},
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},
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"keywords": {
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{Words(``, `\b`, `if`, `elif`, `else`, `endif`, `foreach`, `endforeach`, `break`, `continue`), Keyword, nil},
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},
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"expr": {
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{`(in|and|or|not)\b`, OperatorWord, nil},
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{`(\*=|/=|%=|\+]=|-=|==|!=|\+|-|=)`, Operator, nil},
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{`[\[\]{}:().,?]`, Punctuation, nil},
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{Words(``, `\b`, `true`, `false`), KeywordConstant, nil},
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Include("builtins"),
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{Words(``, `\b`, `meson`, `build_machine`, `host_machine`, `target_machine`), NameVariableMagic, nil},
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},
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"builtins": {
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{Words(`(?<!\.)`, `\b`, `add_global_arguments`, `add_global_link_arguments`, `add_languages`, `add_project_arguments`, `add_project_link_arguments`, `add_test_setup`, `assert`, `benchmark`, `both_libraries`, `build_target`, `configuration_data`, `configure_file`, `custom_target`, `declare_dependency`, `dependency`, `disabler`, `environment`, `error`, `executable`, `files`, `find_library`, `find_program`, `generator`, `get_option`, `get_variable`, `include_directories`, `install_data`, `install_headers`, `install_man`, `install_subdir`, `is_disabler`, `is_variable`, `jar`, `join_paths`, `library`, `message`, `project`, `range`, `run_command`, `set_variable`, `shared_library`, `shared_module`, `static_library`, `subdir`, `subdir_done`, `subproject`, `summary`, `test`, `vcs_tag`, `warning`), NameBuiltin, nil},
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{`(?<!\.)import\b`, NameNamespace, nil},
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},
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}
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},
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))

‎lexers/testdata/meson.actual‎

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project('foo', 'cpp', default_options : ['warning_level=3'])
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required_modules = ['gnome']
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foreach mod in required_modules
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import(mod)
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endforeach
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# Comment
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zlib_dep = dependency('zlib')
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executable('''bar''', 'main.cc', dependencies : zlib_dep)

‎lexers/testdata/meson.expected‎

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[
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{"type":"NameBuiltin","value":"project"},
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{"type":"Punctuation","value":"("},
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{"type":"LiteralString","value":"'foo'"},
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{"type":"Punctuation","value":","},
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{"type":"TextWhitespace","value":" "},
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{"type":"LiteralString","value":"'cpp'"},
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{"type":"Punctuation","value":","},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"default_options"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Punctuation","value":":"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Punctuation","value":"["},
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{"type":"LiteralString","value":"'warning_level=3'"},
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{"type":"Punctuation","value":"])"},
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{"type":"TextWhitespace","value":"\n\n"},
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{"type":"Name","value":"required_modules"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Operator","value":"="},
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{"type":"TextWhitespace","value":" "},
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{"type":"Punctuation","value":"["},
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{"type":"LiteralString","value":"'gnome'"},
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{"type":"Punctuation","value":"]"},
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{"type":"TextWhitespace","value":"\n\n"},
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{"type":"Keyword","value":"foreach"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"mod"},
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{"type":"TextWhitespace","value":" "},
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{"type":"OperatorWord","value":"in"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"required_modules"},
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{"type":"TextWhitespace","value":"\n "},
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{"type":"NameNamespace","value":"import"},
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{"type":"Punctuation","value":"("},
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{"type":"Name","value":"mod"},
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{"type":"Punctuation","value":")"},
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{"type":"TextWhitespace","value":"\n"},
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{"type":"Keyword","value":"endforeach"},
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{"type":"TextWhitespace","value":"\n\n"},
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{"type":"Comment","value":"# Comment"},
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{"type":"TextWhitespace","value":"\n"},
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{"type":"Name","value":"zlib_dep"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Operator","value":"="},
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{"type":"TextWhitespace","value":" "},
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{"type":"NameBuiltin","value":"dependency"},
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{"type":"Punctuation","value":"("},
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{"type":"LiteralString","value":"'zlib'"},
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{"type":"Punctuation","value":")"},
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{"type":"TextWhitespace","value":"\n"},
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{"type":"NameBuiltin","value":"executable"},
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{"type":"Punctuation","value":"("},
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{"type":"LiteralStringSingle","value":"'''bar'''"},
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{"type":"Punctuation","value":","},
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{"type":"TextWhitespace","value":" "},
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{"type":"LiteralString","value":"'main.cc'"},
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{"type":"Punctuation","value":","},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"dependencies"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Punctuation","value":":"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"zlib_dep"},
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{"type":"Punctuation","value":")"},
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{"type":"TextWhitespace","value":"\n"}
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]

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