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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,173 @@ | ||
| <lexer> | ||
| <config> | ||
| <name>Luau</name> | ||
| <alias>luau</alias> | ||
| <filename>*.luau</filename> | ||
| </config> | ||
| <rules> | ||
| <state name="root"> | ||
| <rule pattern="#!.*"><token type="CommentHashbang"/><push state="base"/></rule> | ||
| <rule><push state="base"/></rule> | ||
| </state> | ||
| <state name="ws"> | ||
| <rule pattern="(?:--\[(?<level>=*)\[[\w\W]*?\](?=level)\])"><token type="CommentMultiline"/></rule> | ||
| <rule pattern="(?:--.*$)"><token type="CommentSingle"/></rule> | ||
| <rule pattern="\s+"><token type="TextWhitespace"/></rule> | ||
| </state> | ||
| <state name="base"> | ||
| <rule><include state="ws"/></rule> | ||
| <rule pattern="\{"><token type="Punctuation"/><push state="closing_brace_base" state="expression"/></rule> | ||
| <rule pattern="\("><token type="Punctuation"/><push state="closing_parenthesis_base" state="expression"/></rule> | ||
| <rule pattern="::?"><token type="Punctuation"/><push state="type_end" state="type_start"/></rule> | ||
| <rule pattern="'"><token type="LiteralStringSingle"/><push state="string_single"/></rule> | ||
| <rule pattern="""><token type="LiteralStringDouble"/><push state="string_double"/></rule> | ||
| <rule pattern="`"><token type="LiteralStringBacktick"/><push state="string_interpolated"/></rule> | ||
| <rule pattern="\.\.\."><token type="Punctuation"/></rule> | ||
| <rule pattern="type\b(?=(?:(?:--\[(?<level>=*)\[[\w\W]*?\](?=level)\])|(?:--.*$)|\s+)+[a-zA-Z_])"><token type="KeywordReserved"/><push state="type_declaration"/></rule> | ||
| <rule pattern="export\b(?=(?:(?:--\[(?<level>=*)\[[\w\W]*?\](?=level)\])|(?:--.*$)|\s+)+[a-zA-Z_])"><token type="KeywordReserved"/></rule> | ||
| <rule pattern="(?:\.\.|//|[+\-*\/%^<>=])=?"><token type="Operator"/><push state="expression"/></rule> | ||
| <rule pattern="~="><token type="Operator"/><push state="expression"/></rule> | ||
| <rule pattern="(and|or|not)\b"><token type="OperatorWord"/><push state="expression"/></rule> | ||
| <rule pattern="(elseif|for|if|in|repeat|return|until|while)\b"><token type="KeywordReserved"/><push state="expression"/></rule> | ||
| <rule pattern="local\b"><token type="KeywordDeclaration"/><push state="expression"/></rule> | ||
| <rule pattern="function\b"><token type="KeywordReserved"/><push state="expression" state="func_name"/></rule> | ||
| <rule pattern="[\])};]+"><token type="Punctuation"/></rule> | ||
| <rule><include state="expression_static"/></rule> | ||
| <rule pattern="0[xX][\da-fA-F_]*"><token type="LiteralNumberHex"/></rule> | ||
| <rule pattern="0[bB][\d_]*"><token type="LiteralNumberBin"/></rule> | ||
| <rule pattern="\.?\d[\d_]*(?:\.[\d_]*)?(?:[eE][+-]?[\d_]+)?"><token type="LiteralNumberFloat"/></rule> | ||
| <rule pattern="(true|false|nil)\b"><token type="KeywordConstant"/></rule> | ||
| <rule pattern="\[(=*)\[[.\n]*?\]\1\]"><token type="LiteralString"/></rule> | ||
| <rule pattern="(\.)([a-zA-Z_]\w*)(?=%s*[({"\'])"><bygroups><token type="Punctuation"/><token type="NameFunction"/></bygroups></rule> | ||
| <rule pattern="(\.)([a-zA-Z_]\w*)"><bygroups><token type="Punctuation"/><token type="NameVariable"/></bygroups></rule> | ||
| <rule pattern="[a-zA-Z_]\w*(?:\.[a-zA-Z_]\w*)*(?=(?:(?:--\[(?<level>=*)\[[\w\W]*?\](?=level)\])|(?:--.*$)|\s+)*[({"\'])"><token type="NameOther"/></rule> | ||
| <rule pattern="[a-zA-Z_]\w*(?:\.[a-zA-Z_]\w*)*"><token type="Name"/></rule> | ||
| <rule pattern="[\[.,]"><token type="Punctuation"/><push state="expression"/></rule> | ||
| </state> | ||
| <state name="expression_static"> | ||
| <rule pattern="(break|continue|do|else|elseif|end|for|if|in|repeat|return|then|until|while)\b"><token type="KeywordReserved"/></rule> | ||
| </state> | ||
| <state name="expression"> | ||
| <rule><include state="ws"/></rule> | ||
| <rule pattern="if\b"><token type="KeywordReserved"/><push state="ternary" state="expression"/></rule> | ||
| <rule pattern="local\b"><token type="KeywordDeclaration"/></rule> | ||
| <rule pattern="\{"><token type="Punctuation"/><push state="#pop" state="closing_brace_base" state="expression"/></rule> | ||
| <rule pattern="\("><token type="Punctuation"/><push state="#pop" state="closing_parenthesis_base" state="expression"/></rule> | ||
| <rule pattern="::?"><token type="Punctuation"/><push state="#pop" state="type_end" state="type_start"/></rule> | ||
| <rule pattern="'"><token type="LiteralStringSingle"/><push state="#pop" state="string_single"/></rule> | ||
| <rule pattern="""><token type="LiteralStringDouble"/><push state="#pop" state="string_double"/></rule> | ||
| <rule pattern="`"><token type="LiteralStringBacktick"/><push state="#pop" state="string_interpolated"/></rule> | ||
| <rule pattern="\.\.\."><token type="Punctuation"/><pop depth="1"/></rule> | ||
| <rule pattern="function\b"><token type="KeywordReserved"/><push state="func_name"/></rule> | ||
| <rule><include state="expression_static"/></rule> | ||
| <rule pattern="0[xX][\da-fA-F_]*"><token type="LiteralNumberHex"/><pop depth="1"/></rule> | ||
| <rule pattern="0[bB][\d_]*"><token type="LiteralNumberBin"/><pop depth="1"/></rule> | ||
| <rule pattern="\.?\d[\d_]*(?:\.[\d_]*)?(?:[eE][+-]?[\d_]+)?"><token type="LiteralNumberFloat"/><pop depth="1"/></rule> | ||
| <rule pattern="(true|false|nil)\b"><token type="KeywordConstant"/><pop depth="1"/></rule> | ||
| <rule pattern="\[(=*)\[[.\n]*?\]\1\]"><token type="LiteralString"/><pop depth="1"/></rule> | ||
| <rule pattern="(\.)([a-zA-Z_]\w*)(?=%s*[({"\'])"><bygroups><token type="Punctuation"/><token type="NameFunction"/></bygroups><pop depth="1"/></rule> | ||
| <rule pattern="(\.)([a-zA-Z_]\w*)"><bygroups><token type="Punctuation"/><token type="NameVariable"/></bygroups><pop depth="1"/></rule> | ||
| <rule pattern="[a-zA-Z_]\w*(?:\.[a-zA-Z_]\w*)*(?=(?:(?:--\[(?<level>=*)\[[\w\W]*?\](?=level)\])|(?:--.*$)|\s+)*[({"\'])"><token type="NameOther"/><pop depth="1"/></rule> | ||
| <rule pattern="[a-zA-Z_]\w*(?:\.[a-zA-Z_]\w*)*"><token type="Name"/><pop depth="1"/></rule> | ||
| <rule><pop depth="1"/></rule> | ||
| </state> | ||
| <state name="ternary"> | ||
| <rule><include state="ws"/></rule> | ||
| <rule pattern="else\b"><token type="KeywordReserved"/><pop depth="1"/></rule> | ||
| <rule pattern="(then|elseif)\b"><token type="OperatorReserved"/><push state="expression"/></rule> | ||
| <rule><pop depth="1"/></rule> | ||
| </state> | ||
| <state name="closing_brace_pop"> | ||
| <rule pattern="\}"><token type="Punctuation"/><pop depth="1"/></rule> | ||
| </state> | ||
| <state name="closing_parenthesis_pop"> | ||
| <rule pattern="\)"><token type="Punctuation"/><pop depth="1"/></rule> | ||
| </state> | ||
| <state name="closing_gt_pop"> | ||
| <rule pattern=">"><token type="Punctuation"/><pop depth="1"/></rule> | ||
| </state> | ||
| <state name="closing_parenthesis_base"> | ||
| <rule><include state="closing_parenthesis_pop"/></rule> | ||
| <rule><include state="base"/></rule> | ||
| </state> | ||
| <state name="closing_parenthesis_type"> | ||
| <rule><include state="closing_parenthesis_pop"/></rule> | ||
| <rule><include state="type"/></rule> | ||
| </state> | ||
| <state name="closing_brace_base"> | ||
| <rule><include state="closing_brace_pop"/></rule> | ||
| <rule><include state="base"/></rule> | ||
| </state> | ||
| <state name="closing_brace_type"> | ||
| <rule><include state="closing_brace_pop"/></rule> | ||
| <rule><include state="type"/></rule> | ||
| </state> | ||
| <state name="closing_gt_type"> | ||
| <rule><include state="closing_gt_pop"/></rule> | ||
| <rule><include state="type"/></rule> | ||
| </state> | ||
| <state name="string_escape"> | ||
| <rule pattern="\\z\s*"><token type="LiteralStringEscape"/></rule> | ||
| <rule pattern="\\(?:[abfnrtvz\\"\'`\{\n])|[\r\n]{1,2}|x[\da-fA-F]{2}|\d{1,3}|u\{\}[\da-fA-F]*\}"><token type="LiteralStringEscape"/></rule> | ||
| </state> | ||
| <state name="string_single"> | ||
| <rule><include state="string_escape"/></rule> | ||
| <rule pattern="'"><token type="LiteralStringSingle"/><pop depth="1"/></rule> | ||
| <rule pattern="[^\\']+"><token type="LiteralStringSingle"/></rule> | ||
| </state> | ||
| <state name="string_double"> | ||
| <rule><include state="string_escape"/></rule> | ||
| <rule pattern="""><token type="LiteralStringDouble"/><pop depth="1"/></rule> | ||
| <rule pattern="[^\\"]+"><token type="LiteralStringDouble"/></rule> | ||
| </state> | ||
| <state name="string_interpolated"> | ||
| <rule><include state="string_escape"/></rule> | ||
| <rule pattern="\{"><token type="Punctuation"/><push state="closing_brace_base" state="expression"/></rule> | ||
| <rule pattern="`"><token type="LiteralStringBacktick"/><pop depth="1"/></rule> | ||
| <rule pattern="[^\\`\{]+"><token type="LiteralStringBacktick"/></rule> | ||
| </state> | ||
| <state name="func_name"> | ||
| <rule><include state="ws"/></rule> | ||
| <rule pattern="[.:]"><token type="Punctuation"/></rule> | ||
| <rule pattern="[a-zA-Z_]\w*(?=(?:(?:--\[(?<level>=*)\[[\w\W]*?\](?=level)\])|(?:--.*$)|\s+)*[.:])"><token type="NameClass"/></rule> | ||
| <rule pattern="[a-zA-Z_]\w*"><token type="NameFunction"/></rule> | ||
| <rule pattern="<"><token type="Punctuation"/><push state="closing_gt_type"/></rule> | ||
| <rule pattern="\("><token type="Punctuation"/><pop depth="1"/></rule> | ||
| </state> | ||
| <state name="type"> | ||
| <rule><include state="ws"/></rule> | ||
| <rule pattern="\("><token type="Punctuation"/><push state="closing_parenthesis_type"/></rule> | ||
| <rule pattern="\{"><token type="Punctuation"/><push state="closing_brace_type"/></rule> | ||
| <rule pattern="<"><token type="Punctuation"/><push state="closing_gt_type"/></rule> | ||
| <rule pattern="'"><token type="LiteralStringSingle"/><push state="string_single"/></rule> | ||
| <rule pattern="""><token type="LiteralStringDouble"/><push state="string_double"/></rule> | ||
| <rule pattern="[|&\.,\[\]:=]+"><token type="Punctuation"/></rule> | ||
| <rule pattern="->"><token type="Punctuation"/></rule> | ||
| <rule pattern="typeof\("><token type="NameBuiltin"/><push state="closing_parenthesis_base" state="expression"/></rule> | ||
| <rule pattern="[a-zA-Z_]\w*"><token type="NameClass"/></rule> | ||
| </state> | ||
| <state name="type_start"> | ||
| <rule><include state="ws"/></rule> | ||
| <rule pattern="\("><token type="Punctuation"/><push state="#pop" state="closing_parenthesis_type"/></rule> | ||
| <rule pattern="\{"><token type="Punctuation"/><push state="#pop" state="closing_brace_type"/></rule> | ||
| <rule pattern="<"><token type="Punctuation"/><push state="#pop" state="closing_gt_type"/></rule> | ||
| <rule pattern="'"><token type="LiteralStringSingle"/><push state="#pop" state="string_single"/></rule> | ||
| <rule pattern="""><token type="LiteralStringDouble"/><push state="#pop" state="string_double"/></rule> | ||
| <rule pattern="typeof\("><token type="NameBuiltin"/><push state="#pop" state="closing_parenthesis_base" state="expression"/></rule> | ||
| <rule pattern="[a-zA-Z_]\w*"><token type="NameClass"/><pop depth="1"/></rule> | ||
| </state> | ||
| <state name="type_end"> | ||
| <rule><include state="ws"/></rule> | ||
| <rule pattern="[|&\.]"><token type="Punctuation"/><push state="type_start"/></rule> | ||
| <rule pattern="->"><token type="Punctuation"/><push state="type_start"/></rule> | ||
| <rule pattern="<"><token type="Punctuation"/><push state="closing_gt_type"/></rule> | ||
| <rule><pop depth="1"/></rule> | ||
| </state> | ||
| <state name="type_declaration"> | ||
| <rule><include state="ws"/></rule> | ||
| <rule pattern="[a-zA-Z_]\w*"><token type="NameClass"/></rule> | ||
| <rule pattern="<"><token type="Punctuation"/><push state="closing_gt_type"/></rule> | ||
| <rule pattern="="><token type="Punctuation"/><push state="#pop" state="type_end" state="type_start"/></rule> | ||
| </state> | ||
| </rules> | ||
| </lexer> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,9 @@ | ||
| -- we can define our own structural data types | ||
| type Point = { x: number, y: number } | ||
| -- and we can annotate variables (and function arguments) with them) | ||
| local p: Point = { x = 1, y = 2 } | ||
|
|
||
| print(p.x, p.y) | ||
|
|
||
| -- and we can see that accessing an invalid field from a table raises a type error! | ||
| print(p.z) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,68 @@ | ||
| [ | ||
| {"type":"CommentSingle","value":"-- we can define our own structural data types"}, | ||
| {"type":"TextWhitespace","value":"\n"}, | ||
| {"type":"KeywordReserved","value":"type"}, | ||
| {"type":"TextWhitespace","value":" "}, | ||
| {"type":"NameClass","value":"Point"}, | ||
| {"type":"TextWhitespace","value":" "}, | ||
| {"type":"Punctuation","value":"="}, | ||
| {"type":"TextWhitespace","value":" "}, | ||
| {"type":"Punctuation","value":"{"}, | ||
| {"type":"TextWhitespace","value":" "}, | ||
| {"type":"NameClass","value":"x"}, | ||
| {"type":"Punctuation","value":":"}, | ||
| {"type":"TextWhitespace","value":" "}, | ||
| {"type":"NameClass","value":"number"}, | ||
| {"type":"Punctuation","value":","}, | ||
| {"type":"TextWhitespace","value":" "}, | ||
| {"type":"NameClass","value":"y"}, | ||
| {"type":"Punctuation","value":":"}, | ||
| {"type":"TextWhitespace","value":" "}, | ||
| {"type":"NameClass","value":"number"}, | ||
| {"type":"TextWhitespace","value":" "}, | ||
| {"type":"Punctuation","value":"}"}, | ||
| {"type":"TextWhitespace","value":"\n"}, | ||
| {"type":"CommentSingle","value":"-- and we can annotate variables (and function arguments) with them)"}, | ||
| {"type":"TextWhitespace","value":"\n"}, | ||
| {"type":"KeywordDeclaration","value":"local"}, | ||
| {"type":"TextWhitespace","value":" "}, | ||
| {"type":"Name","value":"p"}, | ||
| {"type":"Punctuation","value":":"}, | ||
| {"type":"TextWhitespace","value":" "}, | ||
| {"type":"NameClass","value":"Point"}, | ||
| {"type":"TextWhitespace","value":" "}, | ||
| {"type":"Operator","value":"="}, | ||
| {"type":"TextWhitespace","value":" "}, | ||
| {"type":"Punctuation","value":"{"}, | ||
| {"type":"TextWhitespace","value":" "}, | ||
| {"type":"Name","value":"x"}, | ||
| {"type":"TextWhitespace","value":" "}, | ||
| {"type":"Operator","value":"="}, | ||
| {"type":"TextWhitespace","value":" "}, | ||
| {"type":"LiteralNumberFloat","value":"1"}, | ||
| {"type":"Punctuation","value":","}, | ||
| {"type":"TextWhitespace","value":" "}, | ||
| {"type":"Name","value":"y"}, | ||
| {"type":"TextWhitespace","value":" "}, | ||
| {"type":"Operator","value":"="}, | ||
| {"type":"TextWhitespace","value":" "}, | ||
| {"type":"LiteralNumberFloat","value":"2"}, | ||
| {"type":"TextWhitespace","value":" "}, | ||
| {"type":"Punctuation","value":"}"}, | ||
| {"type":"TextWhitespace","value":"\n\n"}, | ||
| {"type":"NameOther","value":"print"}, | ||
| {"type":"Punctuation","value":"("}, | ||
| {"type":"Name","value":"p.x"}, | ||
| {"type":"Punctuation","value":","}, | ||
| {"type":"TextWhitespace","value":" "}, | ||
| {"type":"Name","value":"p.y"}, | ||
| {"type":"Punctuation","value":")"}, | ||
| {"type":"TextWhitespace","value":"\n\n"}, | ||
| {"type":"CommentSingle","value":"-- and we can see that accessing an invalid field from a table raises a type error!"}, | ||
| {"type":"TextWhitespace","value":"\n"}, | ||
| {"type":"NameOther","value":"print"}, | ||
| {"type":"Punctuation","value":"("}, | ||
| {"type":"Name","value":"p.z"}, | ||
| {"type":"Punctuation","value":")"}, | ||
| {"type":"TextWhitespace","value":"\n"} | ||
| ] |
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