-- -- This is file `piton.lua', -- generated with the docstrip utility. -- -- The original source files were: -- -- piton.dtx (with options: `LUA') -- --------------------------------------------- -- Copyright (C) 2022-2024 by F. Pantigny -- -- This file may be distributed and/or modified under the -- conditions of the LaTeX Project Public License, either -- version 1.3 of this license or (at your option) any later -- version. The latest version of this license is in: -- -- http://www.latex-project.org/lppl.txt -- -- and version 1.3 or later is part of all distributions of -- LaTeX version 2005/12/01 or later. -- ------------------------------------------- -- -- This file is part of the LuaLaTeX package 'piton'. piton_version = "3.0b" -- 2024/05/23 if piton.comment_latex == nil then piton.comment_latex = ">" end piton.comment_latex = "#" .. piton.comment_latex function piton.open_brace () tex.sprint("{") end function piton.close_brace () tex.sprint("}") end local function sprintL3 ( s ) tex.sprint ( luatexbase.catcodetables.expl , s ) end local P, S, V, C, Ct, Cc = lpeg.P, lpeg.S, lpeg.V, lpeg.C, lpeg.Ct, lpeg.Cc local Cs , Cg , Cmt , Cb = lpeg.Cs, lpeg.Cg , lpeg.Cmt , lpeg.Cb local R = lpeg.R local function Q ( pattern ) return Ct ( Cc ( luatexbase.catcodetables.CatcodeTableOther ) * C ( pattern ) ) end local function L ( pattern ) return Ct ( C ( pattern ) ) end local function Lc ( string ) return Cc ( { luatexbase.catcodetables.expl , string } ) end local function K ( style , pattern ) return Lc ( "{\\PitonStyle{" .. style .. "}{" ) * Q ( pattern ) * Lc "}}" end local function WithStyle ( style , pattern ) return Ct ( Cc "Open" * Cc ( "{\\PitonStyle{" .. style .. "}{" ) * Cc "}}" ) * pattern * Ct ( Cc "Close" ) end Escape = P ( false ) EscapeClean = P ( false ) if piton.begin_escape ~= nil then Escape = P ( piton.begin_escape ) * L ( ( 1 - P ( piton.end_escape ) ) ^ 1 ) * P ( piton.end_escape ) EscapeClean = P ( piton.begin_escape ) * ( 1 - P ( piton.end_escape ) ) ^ 1 * P ( piton.end_escape ) end EscapeMath = P ( false ) if piton.begin_escape_math ~= nil then EscapeMath = P ( piton.begin_escape_math ) * Lc "\\ensuremath{" * L ( ( 1 - P(piton.end_escape_math) ) ^ 1 ) * Lc ( "}" ) * P ( piton.end_escape_math ) end lpeg.locale(lpeg) local alpha , digit = lpeg.alpha , lpeg.digit local space = P " " local letter = alpha + "_" + "â" + "à" + "ç" + "é" + "è" + "ê" + "ë" + "ï" + "î" + "ô" + "û" + "ü" + "Â" + "À" + "Ç" + "É" + "È" + "Ê" + "Ë" + "Ï" + "Î" + "Ô" + "Û" + "Ü" local alphanum = letter + digit local identifier = letter * alphanum ^ 0 local Identifier = K ( 'Identifier' , identifier ) local Number = K ( 'Number' , ( digit ^ 1 * P "." * # ( 1 - P "." ) * digit ^ 0 + digit ^ 0 * P "." * digit ^ 1 + digit ^ 1 ) * ( S "eE" * S "+-" ^ -1 * digit ^ 1 ) ^ -1 + digit ^ 1 ) local Word if piton.begin_escape then if piton.begin_escape_math then Word = Q ( ( 1 - space - piton.begin_escape - piton.end_escape - piton.begin_escape_math - piton.end_escape_math - S "'\"\r[({})]" - digit ) ^ 1 ) else Word = Q ( ( 1 - space - piton.begin_escape - piton.end_escape - S "'\"\r[({})]" - digit ) ^ 1 ) end else if piton.begin_escape_math then Word = Q ( ( 1 - space - piton.begin_escape_math - piton.end_escape_math - S "'\"\r[({})]" - digit ) ^ 1 ) else Word = Q ( ( 1 - space - S "'\"\r[({})]" - digit ) ^ 1 ) end end local Space = Q " " ^ 1 local SkipSpace = Q " " ^ 0 local Punct = Q ( S ".,:;!" ) local Tab = "\t" * Lc "\\l__piton_tab_tl" local SpaceIndentation = Lc "\\__piton_an_indentation_space:" * Q " " local Delim = Q ( S "[({})]" ) local VisualSpace = space * Lc "\\l__piton_space_tl" local LPEG0 = { } local LPEG1 = { } local LPEG2 = { } local LPEG_cleaner = { } local function Compute_braces ( lpeg_string ) return P { "E" , E = ( "{" * V "E" * "}" + lpeg_string + ( 1 - S "{}" ) ) ^ 0 } end local function Compute_DetectedCommands ( lang , braces ) return Ct ( Cc "Open" * C ( piton.ListCommands * P "{" ) * Cc "}" ) * ( braces / (function ( s ) return LPEG1[lang] : match ( s ) end ) ) * P "}" * Ct ( Cc "Close" ) end local function Compute_LPEG_cleaner ( lang , braces ) return Ct ( ( piton.ListCommands * "{" * ( braces / ( function ( s ) return LPEG_cleaner[lang] : match ( s ) end ) ) * "}" + EscapeClean + C ( P ( 1 ) ) ) ^ 0 ) / table.concat end local Beamer = P ( false ) local BeamerBeginEnvironments = P ( true ) local BeamerEndEnvironments = P ( true ) local list_beamer_env = { "uncoverenv" , "onlyenv" , "visibleenv" , "invisibleenv" , "alertenv" , "actionenv" } local BeamerNamesEnvironments = P ( false ) for _ , x in ipairs ( list_beamer_env ) do BeamerNamesEnvironments = BeamerNamesEnvironments + x end BeamerBeginEnvironments = ( space ^ 0 * L ( P "\\begin{" * BeamerNamesEnvironments * "}" * ( "<" * ( 1 - P ">" ) ^ 0 * ">" ) ^ -1 ) * "\r" ) ^ 0 BeamerEndEnvironments = ( space ^ 0 * L ( P "\\end{" * BeamerNamesEnvironments * "}" ) * "\r" ) ^ 0 local function Compute_Beamer ( lang , braces ) local lpeg = L ( P "\\pause" * ( "[" * ( 1 - P "]" ) ^ 0 * "]" ) ^ -1 ) lpeg = lpeg + Ct ( Cc "Open" * C ( ( P "\\uncover" + "\\only" + "\\alert" + "\\visible" + "\\invisible" + "\\action" ) * ( "<" * ( 1 - P ">" ) ^ 0 * ">" ) ^ -1 * P "{" ) * Cc "}" ) * ( braces / ( function ( s ) return LPEG1[lang] : match ( s ) end ) ) * "}" * Ct ( Cc "Close" ) lpeg = lpeg + L ( P "\\alt" * "<" * ( 1 - P ">" ) ^ 0 * ">" * "{" ) * K ( 'ParseAgain.noCR' , braces ) * L ( P "}{" ) * K ( 'ParseAgain.noCR' , braces ) * L ( P "}" ) lpeg = lpeg + L ( ( P "\\temporal" ) * "<" * ( 1 - P ">" ) ^ 0 * ">" * "{" ) * K ( 'ParseAgain.noCR' , braces ) * L ( P "}{" ) * K ( 'ParseAgain.noCR' , braces ) * L ( P "}{" ) * K ( 'ParseAgain.noCR' , braces ) * L ( P "}" ) for _ , x in ipairs ( list_beamer_env ) do lpeg = lpeg + Ct ( Cc "Open" * C ( P ( "\\begin{" .. x .. "}" ) * ( "<" * ( 1 - P ">") ^ 0 * ">" ) ^ -1 ) * Cc ( "\\end{" .. x .. "}" ) ) * ( ( ( 1 - P ( "\\end{" .. x .. "}" ) ) ^ 0 ) / ( function ( s ) return LPEG1[lang] : match ( s ) end ) ) * P ( "\\end{" .. x .. "}" ) * Ct ( Cc "Close" ) end return lpeg end local CommentMath = P "$" * K ( 'Comment.Math' , ( 1 - S "$\r" ) ^ 1 ) * P "$" -- $ local PromptHastyDetection = ( # ( P ">>>" + "..." ) * Lc '\\__piton_prompt:' ) ^ -1 local Prompt = K ( 'Prompt' , ( ( P ">>>" + "..." ) * P " " ^ -1 ) ^ -1 ) local EOL = P "\r" * ( ( space ^ 0 * -1 ) + Ct ( Cc "EOL" * Ct ( Lc "\\__piton_end_line:" * BeamerEndEnvironments * BeamerBeginEnvironments * PromptHastyDetection * Lc "\\__piton_newline: \\__piton_begin_line:" * Prompt ) ) ) * ( SpaceIndentation ^ 0 * # ( 1 - S " \r" ) ) ^ -1 local CommentLaTeX = P(piton.comment_latex) * Lc "{\\PitonStyle{Comment.LaTeX}{\\ignorespaces" * L ( ( 1 - P "\r" ) ^ 0 ) * Lc "}}" * ( EOL + -1 ) local Operator = K ( 'Operator' , P "!=" + "<>" + "==" + "<<" + ">>" + "<=" + ">=" + ":=" + "//" + "**" + S "-~+/*%=<>&.@|" ) local OperatorWord = K ( 'Operator.Word' , P "in" + "is" + "and" + "or" + "not" ) local Keyword = K ( 'Keyword' , P "as" + "assert" + "break" + "case" + "class" + "continue" + "def" + "del" + "elif" + "else" + "except" + "exec" + "finally" + "for" + "from" + "global" + "if" + "import" + "lambda" + "non local" + "pass" + "return" + "try" + "while" + "with" + "yield" + "yield from" ) + K ( 'Keyword.Constant' , P "True" + "False" + "None" ) local Builtin = K ( 'Name.Builtin' , P "__import__" + "abs" + "all" + "any" + "bin" + "bool" + "bytearray" + "bytes" + "chr" + "classmethod" + "compile" + "complex" + "delattr" + "dict" + "dir" + "divmod" + "enumerate" + "eval" + "filter" + "float" + "format" + "frozenset" + "getattr" + "globals" + "hasattr" + "hash" + "hex" + "id" + "input" + "int" + "isinstance" + "issubclass" + "iter" + "len" + "list" + "locals" + "map" + "max" + "memoryview" + "min" + "next" + "object" + "oct" + "open" + "ord" + "pow" + "print" + "property" + "range" + "repr" + "reversed" + "round" + "set" + "setattr" + "slice" + "sorted" + "staticmethod" + "str" + "sum" + "super" + "tuple" + "type" + "vars" + "zip" ) local Exception = K ( 'Exception' , P "ArithmeticError" + "AssertionError" + "AttributeError" + "BaseException" + "BufferError" + "BytesWarning" + "DeprecationWarning" + "EOFError" + "EnvironmentError" + "Exception" + "FloatingPointError" + "FutureWarning" + "GeneratorExit" + "IOError" + "ImportError" + "ImportWarning" + "IndentationError" + "IndexError" + "KeyError" + "KeyboardInterrupt" + "LookupError" + "MemoryError" + "NameError" + "NotImplementedError" + "OSError" + "OverflowError" + "PendingDeprecationWarning" + "ReferenceError" + "ResourceWarning" + "RuntimeError" + "RuntimeWarning" + "StopIteration" + "SyntaxError" + "SyntaxWarning" + "SystemError" + "SystemExit" + "TabError" + "TypeError" + "UnboundLocalError" + "UnicodeDecodeError" + "UnicodeEncodeError" + "UnicodeError" + "UnicodeTranslateError" + "UnicodeWarning" + "UserWarning" + "ValueError" + "VMSError" + "Warning" + "WindowsError" + "ZeroDivisionError" + "BlockingIOError" + "ChildProcessError" + "ConnectionError" + "BrokenPipeError" + "ConnectionAbortedError" + "ConnectionRefusedError" + "ConnectionResetError" + "FileExistsError" + "FileNotFoundError" + "InterruptedError" + "IsADirectoryError" + "NotADirectoryError" + "PermissionError" + "ProcessLookupError" + "TimeoutError" + "StopAsyncIteration" + "ModuleNotFoundError" + "RecursionError" ) local RaiseException = K ( 'Keyword' , P "raise" ) * SkipSpace * Exception * Q "(" local Decorator = K ( 'Name.Decorator' , P "@" * letter ^ 1 ) local DefClass = K ( 'Keyword' , "class" ) * Space * K ( 'Name.Class' , identifier ) local ImportAs = K ( 'Keyword' , "import" ) * Space * K ( 'Name.Namespace' , identifier * ( "." * identifier ) ^ 0 ) * ( ( Space * K ( 'Keyword' , "as" ) * Space * K ( 'Name.Namespace' , identifier ) ) + ( SkipSpace * Q "," * SkipSpace * K ( 'Name.Namespace' , identifier ) ) ^ 0 ) local FromImport = K ( 'Keyword' , "from" ) * Space * K ( 'Name.Namespace' , identifier ) * Space * K ( 'Keyword' , "import" ) local PercentInterpol = K ( 'String.Interpol' , P "%" * ( "(" * alphanum ^ 1 * ")" ) ^ -1 * ( S "-#0 +" ) ^ 0 * ( digit ^ 1 + "*" ) ^ -1 * ( "." * ( digit ^ 1 + "*" ) ) ^ -1 * ( S "HlL" ) ^ -1 * S "sdfFeExXorgiGauc%" ) local SingleShortString = WithStyle ( 'String.Short' , Q ( P "f'" + "F'" ) * ( K ( 'String.Interpol' , "{" ) * K ( 'Interpol.Inside' , ( 1 - S "}':" ) ^ 0 ) * Q ( P ":" * ( 1 - S "}:'" ) ^ 0 ) ^ -1 * K ( 'String.Interpol' , "}" ) + VisualSpace + Q ( ( P "\\'" + "{{" + "}}" + 1 - S " {}'" ) ^ 1 ) ) ^ 0 * Q "'" + Q ( P "'" + "r'" + "R'" ) * ( Q ( ( P "\\'" + 1 - S " '\r%" ) ^ 1 ) + VisualSpace + PercentInterpol + Q "%" ) ^ 0 * Q "'" ) local DoubleShortString = WithStyle ( 'String.Short' , Q ( P "f\"" + "F\"" ) * ( K ( 'String.Interpol' , "{" ) * K ( 'Interpol.Inside' , ( 1 - S "}\":" ) ^ 0 ) * ( K ( 'String.Interpol' , ":" ) * Q ( (1 - S "}:\"") ^ 0 ) ) ^ -1 * K ( 'String.Interpol' , "}" ) + VisualSpace + Q ( ( P "\\\"" + "{{" + "}}" + 1 - S " {}\"" ) ^ 1 ) ) ^ 0 * Q "\"" + Q ( P "\"" + "r\"" + "R\"" ) * ( Q ( ( P "\\\"" + 1 - S " \"\r%" ) ^ 1 ) + VisualSpace + PercentInterpol + Q "%" ) ^ 0 * Q "\"" ) local ShortString = SingleShortString + DoubleShortString local braces = Compute_braces ( Q ( P "\"" + "r\"" + "R\"" + "f\"" + "F\"" ) * ( "\"" * ( P "\\\"" + 1 - S "\"" ) ^ 0 * "\"" ) + Q ( P '\'' + 'r\'' + 'R\'' + 'f\'' + 'F\'' ) * ( '\'' * ( P '\\\'' + 1 - S '\'' ) ^ 0 * '\'' ) ) if piton.beamer then Beamer = Compute_Beamer ( 'python' , braces ) end DetectedCommands = Compute_DetectedCommands ( 'python' , braces ) LPEG_cleaner['python'] = Compute_LPEG_cleaner ( 'python' , braces ) local SingleLongString = WithStyle ( 'String.Long' , ( Q ( S "fF" * P "'''" ) * ( K ( 'String.Interpol' , "{" ) * K ( 'Interpol.Inside' , ( 1 - S "}:\r" - "'''" ) ^ 0 ) * Q ( P ":" * (1 - S "}:\r" - "'''" ) ^ 0 ) ^ -1 * K ( 'String.Interpol' , "}" ) + Q ( ( 1 - P "'''" - S "{}'\r" ) ^ 1 ) + EOL ) ^ 0 + Q ( ( S "rR" ) ^ -1 * "'''" ) * ( Q ( ( 1 - P "'''" - S "\r%" ) ^ 1 ) + PercentInterpol + P "%" + EOL ) ^ 0 ) * Q "'''" ) local DoubleLongString = WithStyle ( 'String.Long' , ( Q ( S "fF" * "\"\"\"" ) * ( K ( 'String.Interpol', "{" ) * K ( 'Interpol.Inside' , ( 1 - S "}:\r" - "\"\"\"" ) ^ 0 ) * Q ( ":" * (1 - S "}:\r" - "\"\"\"" ) ^ 0 ) ^ -1 * K ( 'String.Interpol' , "}" ) + Q ( ( 1 - S "{}\"\r" - "\"\"\"" ) ^ 1 ) + EOL ) ^ 0 + Q ( S "rR" ^ -1 * "\"\"\"" ) * ( Q ( ( 1 - P "\"\"\"" - S "%\r" ) ^ 1 ) + PercentInterpol + P "%" + EOL ) ^ 0 ) * Q "\"\"\"" ) local LongString = SingleLongString + DoubleLongString local StringDoc = K ( 'String.Doc' , P "r" ^ -1 * "\"\"\"" ) * ( K ( 'String.Doc' , (1 - P "\"\"\"" - "\r" ) ^ 0 ) * EOL * Tab ^ 0 ) ^ 0 * K ( 'String.Doc' , ( 1 - P "\"\"\"" - "\r" ) ^ 0 * "\"\"\"" ) local Comment = WithStyle ( 'Comment' , Q "#" * ( CommentMath + Q ( ( 1 - S "$\r" ) ^ 1 ) ) ^ 0 ) -- $ * ( EOL + -1 ) local expression = P { "E" , E = ( "'" * ( P "\\'" + 1 - S "'\r" ) ^ 0 * "'" + "\"" * ( P "\\\"" + 1 - S "\"\r" ) ^ 0 * "\"" + "{" * V "F" * "}" + "(" * V "F" * ")" + "[" * V "F" * "]" + ( 1 - S "{}()[]\r," ) ) ^ 0 , F = ( "{" * V "F" * "}" + "(" * V "F" * ")" + "[" * V "F" * "]" + ( 1 - S "{}()[]\r\"'" ) ) ^ 0 } local Params = P { "E" , E = ( V "F" * ( Q "," * V "F" ) ^ 0 ) ^ -1 , F = SkipSpace * ( Identifier + Q "*args" + Q "**kwargs" ) * SkipSpace * ( K ( 'InitialValues' , "=" * expression ) + Q ":" * SkipSpace * K ( 'Name.Type' , identifier ) ) ^ -1 } local DefFunction = K ( 'Keyword' , "def" ) * Space * K ( 'Name.Function.Internal' , identifier ) * SkipSpace * Q "(" * Params * Q ")" * SkipSpace * ( Q "->" * SkipSpace * K ( 'Name.Type' , identifier ) ) ^ -1 * K ( 'ParseAgain.noCR' , ( 1 - S ":\r" ) ^ 0 ) * Q ":" * ( SkipSpace * ( EOL + CommentLaTeX + Comment ) -- in all cases, that contains an EOL * Tab ^ 0 * SkipSpace * StringDoc ^ 0 -- there may be additional docstrings ) ^ -1 local ExceptionInConsole = Exception * Q ( ( 1 - P "\r" ) ^ 0 ) * EOL local Main = space ^ 1 * -1 + space ^ 0 * EOL + Space + Tab + Escape + EscapeMath + CommentLaTeX + Beamer + DetectedCommands + LongString + Comment + ExceptionInConsole + Delim + Operator + OperatorWord * ( Space + Punct + Delim + EOL + -1 ) + ShortString + Punct + FromImport + RaiseException + DefFunction + DefClass + Keyword * ( Space + Punct + Delim + EOL + -1 ) + Decorator + Builtin * ( Space + Punct + Delim + EOL + -1 ) + Identifier + Number + Word LPEG1['python'] = Main ^ 0 LPEG2['python'] = Ct ( ( space ^ 0 * "\r" ) ^ -1 * BeamerBeginEnvironments * PromptHastyDetection * Lc '\\__piton_begin_line:' * Prompt * SpaceIndentation ^ 0 * LPEG1['python'] * -1 * Lc '\\__piton_end_line:' ) local Delim = Q ( P "[|" + "|]" + S "[()]" ) local Punct = Q ( S ",:;!" ) local cap_identifier = R "AZ" * ( R "az" + R "AZ" + S "_'" + digit ) ^ 0 local Constructor = K ( 'Name.Constructor' , cap_identifier ) local ModuleType = K ( 'Name.Type' , cap_identifier ) local identifier = ( R "az" + "_" ) * ( R "az" + R "AZ" + S "_'" + digit ) ^ 0 local Identifier = K ( 'Identifier' , identifier ) local expression_for_fields = P { "E" , E = ( "{" * V "F" * "}" + "(" * V "F" * ")" + "[" * V "F" * "]" + "\"" * ( P "\\\"" + 1 - S "\"\r" ) ^ 0 * "\"" + "'" * ( P "\\'" + 1 - S "'\r" ) ^ 0 * "'" + ( 1 - S "{}()[]\r;" ) ) ^ 0 , F = ( "{" * V "F" * "}" + "(" * V "F" * ")" + "[" * V "F" * "]" + ( 1 - S "{}()[]\r\"'" ) ) ^ 0 } local OneFieldDefinition = ( K ( 'Keyword' , "mutable" ) * SkipSpace ) ^ -1 * K ( 'Name.Field' , identifier ) * SkipSpace * Q ":" * SkipSpace * K ( 'Name.Type' , expression_for_fields ) * SkipSpace local OneField = K ( 'Name.Field' , identifier ) * SkipSpace * Q "=" * SkipSpace * ( expression_for_fields / ( function ( s ) return LPEG1['ocaml'] : match ( s ) end ) ) * SkipSpace local Record = Q "{" * SkipSpace * ( OneFieldDefinition * ( Q ";" * SkipSpace * OneFieldDefinition ) ^ 0 + OneField * ( Q ";" * SkipSpace * OneField ) ^ 0 ) * Q "}" local DotNotation = ( K ( 'Name.Module' , cap_identifier ) * Q "." * ( Identifier + Constructor + Q "(" + Q "[" + Q "{" ) + Identifier * Q "." * K ( 'Name.Field' , identifier ) ) * ( Q "." * K ( 'Name.Field' , identifier ) ) ^ 0 local Operator = K ( 'Operator' , P "!=" + "<>" + "==" + "<<" + ">>" + "<=" + ">=" + ":=" + "||" + "&&" + "//" + "**" + ";;" + "::" + "->" + "+." + "-." + "*." + "/." + S "-~+/*%=<>&@|" ) local OperatorWord = K ( 'Operator.Word' , P "and" + "asr" + "land" + "lor" + "lsl" + "lxor" + "mod" + "or" ) local Keyword = K ( 'Keyword' , P "assert" + "and" + "as" + "begin" + "class" + "constraint" + "done" + "downto" + "do" + "else" + "end" + "exception" + "external" + "for" + "function" + "functor" + "fun" + "if" + "include" + "inherit" + "initializer" + "in" + "lazy" + "let" + "match" + "method" + "module" + "mutable" + "new" + "object" + "of" + "open" + "private" + "raise" + "rec" + "sig" + "struct" + "then" + "to" + "try" + "type" + "value" + "val" + "virtual" + "when" + "while" + "with" ) + K ( 'Keyword.Constant' , P "true" + "false" ) local Builtin = K ( 'Name.Builtin' , P "not" + "incr" + "decr" + "fst" + "snd" ) local Exception = K ( 'Exception' , P "Division_by_zero" + "End_of_File" + "Failure" + "Invalid_argument" + "Match_failure" + "Not_found" + "Out_of_memory" + "Stack_overflow" + "Sys_blocked_io" + "Sys_error" + "Undefined_recursive_module" ) local Char = K ( 'String.Short' , "'" * ( ( 1 - P "'" ) ^ 0 + "\\'" ) * "'" ) braces = Compute_braces ( "\"" * ( 1 - S "\"" ) ^ 0 * "\"" ) if piton.beamer then Beamer = Compute_Beamer ( 'ocaml' , "\"" * ( 1 - S "\"" ) ^ 0 * "\"" ) end DetectedCommands = Compute_DetectedCommands ( 'ocaml' , braces ) LPEG_cleaner['ocaml'] = Compute_LPEG_cleaner ( 'ocaml' , braces ) local ocaml_string = Q "\"" * ( VisualSpace + Q ( ( 1 - S " \"\r" ) ^ 1 ) + EOL ) ^ 0 * Q "\"" local String = WithStyle ( 'String.Long' , ocaml_string ) local ext = ( R "az" + "_" ) ^ 0 local open = "{" * Cg ( ext , 'init' ) * "|" local close = "|" * C ( ext ) * "}" local closeeq = Cmt ( close * Cb ( 'init' ) , function ( s , i , a , b ) return a == b end ) local QuotedStringBis = WithStyle ( 'String.Long' , ( Space + Q ( ( 1 - S " \r" ) ^ 1 ) + EOL ) ^ 0 ) local QuotedString = C ( open * ( 1 - closeeq ) ^ 0 * close ) / ( function ( s ) return QuotedStringBis : match ( s ) end ) local Comment = WithStyle ( 'Comment' , P { "A" , A = Q "(*" * ( V "A" + Q ( ( 1 - S "\r$\"" - "(*" - "*)" ) ^ 1 ) -- $ + ocaml_string + "$" * K ( 'Comment.Math' , ( 1 - S "$\r" ) ^ 1 ) * "$" -- $ + EOL ) ^ 0 * Q "*)" } ) local balanced_parens = P { "E" , E = ( "(" * V "E" * ")" + 1 - S "()" ) ^ 0 } local Argument = K ( 'Identifier' , identifier ) + Q "(" * SkipSpace * K ( 'Identifier' , identifier ) * SkipSpace * Q ":" * SkipSpace * K ( 'Name.Type' , balanced_parens ) * SkipSpace * Q ")" local DefFunction = K ( 'Keyword' , "let open" ) * Space * K ( 'Name.Module' , cap_identifier ) + K ( 'Keyword' , P "let rec" + "let" + "and" ) * Space * K ( 'Name.Function.Internal' , identifier ) * Space * ( Q "=" * SkipSpace * K ( 'Keyword' , "function" ) + Argument * ( SkipSpace * Argument ) ^ 0 * ( SkipSpace * Q ":" * K ( 'Name.Type' , ( 1 - P "=" ) ^ 0 ) ) ^ -1 ) local DefModule = K ( 'Keyword' , "module" ) * Space * ( K ( 'Keyword' , "type" ) * Space * K ( 'Name.Type' , cap_identifier ) + K ( 'Name.Module' , cap_identifier ) * SkipSpace * ( Q "(" * SkipSpace * K ( 'Name.Module' , cap_identifier ) * SkipSpace * Q ":" * SkipSpace * K ( 'Name.Type' , cap_identifier ) * SkipSpace * ( Q "," * SkipSpace * K ( 'Name.Module' , cap_identifier ) * SkipSpace * Q ":" * SkipSpace * K ( 'Name.Type' , cap_identifier ) * SkipSpace ) ^ 0 * Q ")" ) ^ -1 * ( Q "=" * SkipSpace * K ( 'Name.Module' , cap_identifier ) * SkipSpace * Q "(" * K ( 'Name.Module' , cap_identifier ) * SkipSpace * ( Q "," * K ( 'Name.Module' , cap_identifier ) * SkipSpace ) ^ 0 * Q ")" ) ^ -1 ) + K ( 'Keyword' , P "include" + "open" ) * Space * K ( 'Name.Module' , cap_identifier ) local TypeParameter = K ( 'TypeParameter' , "'" * alpha * # ( 1 - P "'" ) ) local Main = space ^ 1 * -1 + space ^ 0 * EOL + Space + Tab + Escape + EscapeMath + Beamer + DetectedCommands + TypeParameter + String + QuotedString + Char + Comment + Delim + Operator + Punct + FromImport + Exception + DefFunction + DefModule + Record + Keyword * ( Space + Punct + Delim + EOL + -1 ) + OperatorWord * ( Space + Punct + Delim + EOL + -1 ) + Builtin * ( Space + Punct + Delim + EOL + -1 ) + DotNotation + Constructor + Identifier + Number + Word LPEG1['ocaml'] = Main ^ 0 LPEG2['ocaml'] = Ct ( ( space ^ 0 * "\r" ) ^ -1 * BeamerBeginEnvironments * Lc '\\__piton_begin_line:' * SpaceIndentation ^ 0 * LPEG1['ocaml'] * -1 * Lc '\\__piton_end_line:' ) local Delim = Q ( S "{[()]}" ) local Punct = Q ( S ",:;!" ) local identifier = letter * alphanum ^ 0 local Operator = K ( 'Operator' , P "!=" + "==" + "<<" + ">>" + "<=" + ">=" + "||" + "&&" + S "-~+/*%=<>&.@|!" ) local Keyword = K ( 'Keyword' , P "alignas" + "asm" + "auto" + "break" + "case" + "catch" + "class" + "const" + "constexpr" + "continue" + "decltype" + "do" + "else" + "enum" + "extern" + "for" + "goto" + "if" + "nexcept" + "private" + "public" + "register" + "restricted" + "return" + "static" + "static_assert" + "struct" + "switch" + "thread_local" + "throw" + "try" + "typedef" + "union" + "using" + "virtual" + "volatile" + "while" ) + K ( 'Keyword.Constant' , P "default" + "false" + "NULL" + "nullptr" + "true" ) local Builtin = K ( 'Name.Builtin' , P "alignof" + "malloc" + "printf" + "scanf" + "sizeof" ) local Type = K ( 'Name.Type' , P "bool" + "char" + "char16_t" + "char32_t" + "double" + "float" + "int" + "int8_t" + "int16_t" + "int32_t" + "int64_t" + "long" + "short" + "signed" + "unsigned" + "void" + "wchar_t" ) * Q "*" ^ 0 local DefFunction = Type * Space * Q "*" ^ -1 * K ( 'Name.Function.Internal' , identifier ) * SkipSpace * # P "(" local DefClass = K ( 'Keyword' , "class" ) * Space * K ( 'Name.Class' , identifier ) String = WithStyle ( 'String.Long' , Q "\"" * ( VisualSpace + K ( 'String.Interpol' , "%" * ( S "difcspxXou" + "ld" + "li" + "hd" + "hi" ) ) + Q ( ( P "\\\"" + 1 - S " \"" ) ^ 1 ) ) ^ 0 * Q "\"" ) braces = Compute_braces ( "\"" * ( 1 - S "\"" ) ^ 0 * "\"" ) if piton.beamer then Beamer = Compute_Beamer ( 'c' , braces ) end DetectedCommands = Compute_DetectedCommands ( 'c' , braces ) LPEG_cleaner['c'] = Compute_LPEG_cleaner ( 'c' , braces ) local Preproc = K ( 'Preproc' , "#" * ( 1 - P "\r" ) ^ 0 ) * ( EOL + -1 ) local Comment = WithStyle ( 'Comment' , Q "//" * ( CommentMath + Q ( ( 1 - S "$\r" ) ^ 1 ) ) ^ 0 ) -- $ * ( EOL + -1 ) local LongComment = WithStyle ( 'Comment' , Q "/*" * ( CommentMath + Q ( ( 1 - P "*/" - S "$\r" ) ^ 1 ) + EOL ) ^ 0 * Q "*/" ) -- $ local Main = space ^ 1 * -1 + space ^ 0 * EOL + Space + Tab + Escape + EscapeMath + CommentLaTeX + Beamer + DetectedCommands + Preproc + Comment + LongComment + Delim + Operator + String + Punct + DefFunction + DefClass + Type * ( Q "*" ^ -1 + Space + Punct + Delim + EOL + -1 ) + Keyword * ( Space + Punct + Delim + EOL + -1 ) + Builtin * ( Space + Punct + Delim + EOL + -1 ) + Identifier + Number + Word LPEG1['c'] = Main ^ 0 LPEG2['c'] = Ct ( ( space ^ 0 * P "\r" ) ^ -1 * BeamerBeginEnvironments * Lc '\\__piton_begin_line:' * SpaceIndentation ^ 0 * LPEG1['c'] * -1 * Lc '\\__piton_end_line:' ) local function LuaKeyword ( name ) return Lc [[{\PitonStyle{Keyword}{]] * Q ( Cmt ( C ( identifier ) , function ( s , i , a ) return string.upper ( a ) == name end ) ) * Lc "}}" end local identifier = letter * ( alphanum + "-" ) ^ 0 + '"' * ( ( alphanum + space - '"' ) ^ 1 ) * '"' local Operator = K ( 'Operator' , P "=" + "!=" + "<>" + ">=" + ">" + "<=" + "<" + S "*+/" ) local function Set ( list ) local set = { } for _, l in ipairs ( list ) do set[l] = true end return set end local set_keywords = Set { "ADD" , "AFTER" , "ALL" , "ALTER" , "AND" , "AS" , "ASC" , "BETWEEN" , "BY" , "CHANGE" , "COLUMN" , "CREATE" , "CROSS JOIN" , "DELETE" , "DESC" , "DISTINCT" , "DROP" , "FROM" , "GROUP" , "HAVING" , "IN" , "INNER" , "INSERT" , "INTO" , "IS" , "JOIN" , "LEFT" , "LIKE" , "LIMIT" , "MERGE" , "NOT" , "NULL" , "ON" , "OR" , "ORDER" , "OVER" , "RIGHT" , "SELECT" , "SET" , "TABLE" , "THEN" , "TRUNCATE" , "UNION" , "UPDATE" , "VALUES" , "WHEN" , "WHERE" , "WITH" } local set_builtins = Set { "AVG" , "COUNT" , "CHAR_LENGHT" , "CONCAT" , "CURDATE" , "CURRENT_DATE" , "DATE_FORMAT" , "DAY" , "LOWER" , "LTRIM" , "MAX" , "MIN" , "MONTH" , "NOW" , "RANK" , "ROUND" , "RTRIM" , "SUBSTRING" , "SUM" , "UPPER" , "YEAR" } local Identifier = C ( identifier ) / ( function (s) if set_keywords[string.upper(s)] -- the keywords are case-insensitive in SQL then return { "{\\PitonStyle{Keyword}{" } , { luatexbase.catcodetables.other , s } , { "}}" } else if set_builtins[string.upper(s)] then return { "{\\PitonStyle{Name.Builtin}{" } , { luatexbase.catcodetables.other , s } , { "}}" } else return { "{\\PitonStyle{Name.Field}{" } , { luatexbase.catcodetables.other , s } , { "}}" } end end end ) local String = K ( 'String.Long' , "'" * ( 1 - P "'" ) ^ 1 * "'" ) braces = Compute_braces ( String ) if piton.beamer then Beamer = Compute_Beamer ( 'sql' , braces ) end DetectedCommands = Compute_DetectedCommands ( 'sql' , braces ) LPEG_cleaner['sql'] = Compute_LPEG_cleaner ( 'sql' , braces ) local Comment = WithStyle ( 'Comment' , Q "--" -- syntax of SQL92 * ( CommentMath + Q ( ( 1 - S "$\r" ) ^ 1 ) ) ^ 0 ) -- $ * ( EOL + -1 ) local LongComment = WithStyle ( 'Comment' , Q "/*" * ( CommentMath + Q ( ( 1 - P "*/" - S "$\r" ) ^ 1 ) + EOL ) ^ 0 * Q "*/" ) -- $ local TableField = K ( 'Name.Table' , identifier ) * Q "." * K ( 'Name.Field' , identifier ) local OneField = ( Q ( "(" * ( 1 - P ")" ) ^ 0 * ")" ) + K ( 'Name.Table' , identifier ) * Q "." * K ( 'Name.Field' , identifier ) + K ( 'Name.Field' , identifier ) ) * ( Space * LuaKeyword "AS" * Space * K ( 'Name.Field' , identifier ) ) ^ -1 * ( Space * ( LuaKeyword "ASC" + LuaKeyword "DESC" ) ) ^ -1 local OneTable = K ( 'Name.Table' , identifier ) * ( Space * LuaKeyword "AS" * Space * K ( 'Name.Table' , identifier ) ) ^ -1 local WeCatchTableNames = LuaKeyword "FROM" * ( Space + EOL ) * OneTable * ( SkipSpace * Q "," * SkipSpace * OneTable ) ^ 0 + ( LuaKeyword "JOIN" + LuaKeyword "INTO" + LuaKeyword "UPDATE" + LuaKeyword "TABLE" ) * ( Space + EOL ) * OneTable local Main = space ^ 1 * -1 + space ^ 0 * EOL + Space + Tab + Escape + EscapeMath + CommentLaTeX + Beamer + DetectedCommands + Comment + LongComment + Delim + Operator + String + Punct + WeCatchTableNames + ( TableField + Identifier ) * ( Space + Operator + Punct + Delim + EOL + -1 ) + Number + Word LPEG1['sql'] = Main ^ 0 LPEG2['sql'] = Ct ( ( space ^ 0 * "\r" ) ^ -1 * BeamerBeginEnvironments * Lc [[ \__piton_begin_line: ]] * SpaceIndentation ^ 0 * LPEG1['sql'] * -1 * Lc [[ \__piton_end_line: ]] ) local Punct = Q ( S ",:;!\\" ) local Comment = WithStyle ( 'Comment' , Q "#" * ( CommentMath + Q ( ( 1 - S "$\r" ) ^ 1 ) ) ^ 0 -- $ ) * ( EOL + -1 ) local String = WithStyle ( 'String.Short' , Q "\"" * ( VisualSpace + Q ( ( P "\\\"" + 1 - S " \"" ) ^ 1 ) ) ^ 0 * Q "\"" ) braces = Compute_braces ( String ) if piton.beamer then Beamer = Compute_Beamer ( 'minimal' , braces ) end DetectedCommands = Compute_DetectedCommands ( 'minimal' , braces ) LPEG_cleaner['minimal'] = Compute_LPEG_cleaner ( 'minimal' , braces ) local identifier = letter * alphanum ^ 0 local Identifier = K ( 'Identifier' , identifier ) local Delim = Q ( S "{[()]}" ) local Main = space ^ 1 * -1 + space ^ 0 * EOL + Space + Tab + Escape + EscapeMath + CommentLaTeX + Beamer + DetectedCommands + Comment + Delim + String + Punct + Identifier + Number + Word LPEG1['minimal'] = Main ^ 0 LPEG2['minimal'] = Ct ( ( space ^ 0 * "\r" ) ^ -1 * BeamerBeginEnvironments * Lc [[ \__piton_begin_line: ]] * SpaceIndentation ^ 0 * LPEG1['minimal'] * -1 * Lc [[ \__piton_end_line: ]] ) function piton.Parse ( language , code ) local t = LPEG2[language] : match ( code ) if t == nil then sprintL3 [[ \__piton_error_or_warning:n { syntax~error } ]] return -- to exit in force the function end local left_stack = {} local right_stack = {} for _ , one_item in ipairs ( t ) do if one_item[1] == "EOL" then for _ , s in ipairs ( right_stack ) do tex.sprint ( s ) end for _ , s in ipairs ( one_item[2] ) do tex.tprint ( s ) end for _ , s in ipairs ( left_stack ) do tex.sprint ( s ) end else if one_item[1] == "Open" then tex.sprint( one_item[2] ) table.insert ( left_stack , one_item[2] ) table.insert ( right_stack , one_item[3] ) else if one_item[1] == "Close" then tex.sprint ( right_stack[#right_stack] ) left_stack[#left_stack] = nil right_stack[#right_stack] = nil else tex.tprint ( one_item ) end end end end end function piton.ParseFile ( language , name , first_line , last_line , split ) local s = '' local i = 0 for line in io.lines ( name ) do i = i + 1 if i >= first_line then s = s .. '\r' .. line end if i >= last_line then break end end if string.byte ( s , 1 ) == 13 then if string.byte ( s , 2 ) == 239 then if string.byte ( s , 3 ) == 187 then if string.byte ( s , 4 ) == 191 then s = string.sub ( s , 5 , -1 ) end end end end if split == 1 then piton.GobbleSplitParse ( language , 0 , s ) else sprintL3 [[ \bool_if:NT \g__piton_footnote_bool \savenotes \vtop \bgroup ]] piton.Parse ( language , s ) sprintL3 [[\vspace{2.5pt}\egroup\bool_if:NT\g__piton_footnote_bool\endsavenotes\par]] end end function piton.ParseBis ( lang , code ) local s = ( Cs ( ( P '##' / '#' + 1 ) ^ 0 ) ) : match ( code ) return piton.Parse ( lang , s ) end function piton.ParseTer ( lang , code ) local s = ( Cs ( ( P [[\__piton_breakable_space: ]] / ' ' + 1 ) ^ 0 ) ) : match ( code ) return piton.Parse ( lang , s ) end local AutoGobbleLPEG = ( ( P " " ^ 0 * "\r" + Ct ( C " " ^ 0 ) / table.getn * ( 1 - P " " ) * ( 1 - P "\r" ) ^ 0 * "\r" ) ^ 0 * ( Ct ( C " " ^ 0 ) / table.getn * ( 1 - P " " ) * ( 1 - P "\r" ) ^ 0 ) ^ -1 ) / math.min local TabsAutoGobbleLPEG = ( ( P "\t" ^ 0 * "\r" + Ct ( C "\t" ^ 0 ) / table.getn * ( 1 - P "\t" ) * ( 1 - P "\r" ) ^ 0 * "\r" ) ^ 0 * ( Ct ( C "\t" ^ 0 ) / table.getn * ( 1 - P "\t" ) * ( 1 - P "\r" ) ^ 0 ) ^ -1 ) / math.min local EnvGobbleLPEG = ( ( 1 - P "\r" ) ^ 0 * "\r" ) ^ 0 * Ct ( C " " ^ 0 * -1 ) / table.getn local function remove_before_cr ( input_string ) local match_result = ( P "\r" ) : match ( input_string ) if match_result then return string.sub ( input_string , match_result ) else return input_string end end local function gobble ( n , code ) code = remove_before_cr ( code ) if n == 0 then return code else if n == -1 then n = AutoGobbleLPEG : match ( code ) else if n == -2 then n = EnvGobbleLPEG : match ( code ) else if n == -3 then n = TabsAutoGobbleLPEG : match ( code ) end end end if n == 0 then return code else return ( Ct ( ( 1 - P "\r" ) ^ (-n) * C ( ( 1 - P "\r" ) ^ 0 ) * ( C "\r" * ( 1 - P "\r" ) ^ (-n) * C ( ( 1 - P "\r" ) ^ 0 ) ) ^ 0 ) / table.concat ) : match ( code ) end end end function piton.GobbleParse ( lang , n , code ) piton.last_code = gobble ( n , code ) piton.last_language = lang sprintL3 [[ \bool_if:NT \g__piton_footnote_bool \savenotes \vtop \bgroup ]] piton.Parse ( lang , piton.last_code ) sprintL3 [[\vspace{2.5pt}\egroup\bool_if:NT\g__piton_footnote_bool\endsavenotes\par]] if piton.write and piton.write ~= '' then local file = assert ( io.open ( piton.write , piton.write_mode ) ) file:write ( piton.get_last_code ( ) ) file:close ( ) end end function piton.GobbleSplitParse ( lang , n , code ) P { "E" , E = ( V "F" * ( P " " ^ 0 * "\r" / ( function ( x ) sprintL3 [[ \__piton_incr_visual_line: ]] end ) ) ^ 1 / ( function ( x ) sprintL3 [[ \l__piton_split_separation_tl \int_gzero:N \g__piton_line_int ]] end ) ) ^ 0 * V "F" , F = C ( V "G" ^ 0 ) / ( function ( x ) piton.GobbleParse ( lang , 0 , x ) end ) , G = ( 1 - P "\r" ) ^ 0 * "\r" - ( P " " ^ 0 * "\r" ) } : match ( gobble ( n , code ) ) end function piton.get_last_code ( ) return LPEG_cleaner[piton.last_language] : match ( piton.last_code ) end function piton.CountLines ( code ) local count = 0 for i in code : gmatch ( "\r" ) do count = count + 1 end sprintL3 ( [[ \int_set:Nn \l__piton_nb_lines_int { ]] .. count .. '}' ) end function piton.CountNonEmptyLines ( code ) local count = 0 count = ( Ct ( ( P " " ^ 0 * "\r" + ( 1 - P "\r" ) ^ 0 * C "\r" ) ^ 0 * ( 1 - P "\r" ) ^ 0 * -1 ) / table.getn ) : match ( code ) sprintL3 ( [[ \int_set:Nn \l__piton_nb_non_empty_lines_int { ]] .. count .. '}' ) end function piton.CountLinesFile ( name ) local count = 0 for line in io.lines ( name ) do count = count + 1 end sprintL3 ( [[ \int_set:Nn \l__piton_nb_lines_int { ]] .. count .. '}' ) end function piton.CountNonEmptyLinesFile ( name ) local count = 0 for line in io.lines ( name ) do if not ( ( P " " ^ 0 * -1 ) : match ( line ) ) then count = count + 1 end end sprintL3 ( [[ \int_set:Nn \l__piton_nb_non_empty_lines_int { ]] .. count .. '}' ) end function piton.ComputeRange(marker_beginning,marker_end,file_name) local s = ( Cs ( ( P '##' / '#' + 1 ) ^ 0 ) ) : match ( marker_beginning ) local t = ( Cs ( ( P '##' / '#' + 1 ) ^ 0 ) ) : match ( marker_end ) local first_line = -1 local count = 0 local last_found = false for line in io.lines ( file_name ) do if first_line == -1 then if string.sub ( line , 1 , #s ) == s then first_line = count end else if string.sub ( line , 1 , #t ) == t then last_found = true break end end count = count + 1 end if first_line == -1 then sprintL3 [[ \__piton_error_or_warning:n { begin~marker~not~found } ]] else if last_found == false then sprintL3 [[ \__piton_error_or_warning:n { end~marker~not~found } ]] end end sprintL3 ( [[ \int_set:Nn \l__piton_first_line_int { ]] .. first_line .. ' + 2 }' .. [[ \int_set:Nn \l__piton_last_line_int { ]] .. count .. ' }' ) end function piton.new_language ( lang , definition ) lang = string.lower ( lang ) local alpha , digit = lpeg.alpha , lpeg.digit local extra_letters = { "@" , "_" , "$" } -- $ function add_to_letter ( c ) if c ~= " " then table.insert ( extra_letters , c ) end end function add_to_digit ( c ) if c ~= " " then digit = digit + c end end local other = S ":_@+-*/<>!?;.()[]~^=#&\"\'\\$" -- $ local extra_others = { } function add_to_other ( c ) if c ~= " " then extra_others[c] = true other = other + P "c" end end local strict_braces = P { "E" , E = ( "{" * V "F" * "}" + ( 1 - S ",{}" ) ) ^ 0 , F = ( "{" * V "F" * "}" + ( 1 - S "{}" ) ) ^ 0 } local cut_definition = P { "E" , E = Ct ( V "F" * ( "," * V "F" ) ^ 0 ) , F = Ct ( space ^ 0 * C ( alpha ^ 1 ) * space ^ 0 * ( "=" * space ^ 0 * C ( strict_braces ) ) ^ -1 ) } local def_table = cut_definition : match ( definition ) local tex_braced_arg = "{" * C ( ( 1 - P "}" ) ^ 0 ) * "}" local tex_arg = tex_braced_arg + C ( 1 ) local tex_option_arg = "[" * C ( ( 1 - P "]" ) ^ 0 ) * "]" + Cc ( nil ) local args_for_tag = tex_option_arg * space ^ 0 * tex_arg * space ^ 0 * tex_arg local args_for_morekeywords = "[" * C ( ( 1 - P "]" ) ^ 0 ) * "]" * space ^ 0 * tex_option_arg * space ^ 0 * tex_arg * space ^ 0 * ( tex_braced_arg + Cc ( nil ) ) local args_for_moredelims = ( C ( P "*" ^ -2 ) + Cc ( nil ) ) * space ^ 0 * args_for_morekeywords local args_for_morecomment = "[" * C ( ( 1 - P "]" ) ^ 0 ) * "]" * space ^ 0 * tex_option_arg * space ^ 0 * C ( P ( 1 ) ^ 0 * -1 ) local sensitive = true local style_tag , left_tag , right_tag for _ , x in ipairs ( def_table ) do if x[1] == "sensitive" then if x[2] == nil or ( P "true" ) : match ( x[2] ) then sensitive = true else if ( P "false" + P "f" ) : match ( x[2] ) then sensitive = false end end end if x[1] == "alsodigit" then x[2] : gsub ( "." , add_to_digit ) end if x[1] == "alsoletter" then x[2] : gsub ( "." , add_to_letter ) end if x[1] == "alsoother" then x[2] : gsub ( "." , add_to_other ) end if x[1] == "tag" then style_tag , left_tag , right_tag = args_for_tag : match ( x[2] ) style_tag = style_tag or [[\PitonStyle{Tag}]] end end local Number = K ( 'Number' , ( digit ^ 1 * "." * # ( 1 - P "." ) * digit ^ 0 + digit ^ 0 * "." * digit ^ 1 + digit ^ 1 ) * ( S "eE" * S "+-" ^ -1 * digit ^ 1 ) ^ -1 + digit ^ 1 ) local string_extra_letters = "" for _ , x in ipairs ( extra_letters ) do if not ( extra_others[x] ) then string_extra_letters = string_extra_letters .. x end end local letter = alpha + S ( string_extra_letters ) + P "â" + "à" + "ç" + "é" + "è" + "ê" + "ë" + "ï" + "î" + "ô" + "û" + "ü" + "Â" + "À" + "Ç" + "É" + "È" + "Ê" + "Ë" + "Ï" + "Î" + "Ô" + "Û" + "Ü" local alphanum = letter + digit local identifier = letter * alphanum ^ 0 local Identifier = K ( 'Identifier' , identifier ) local split_clist = P { "E" , E = ( "[" * ( 1 - P "]" ) ^ 0 * "]" ) ^ -1 * ( P "{" ) ^ 1 * Ct ( V "F" * ( "," * V "F" ) ^ 0 ) * ( P "}" ) ^ 1 * space ^ 0 , F = space ^ 0 * C ( letter * alphanum ^ 0 + other ^ 1 ) * space ^ 0 } local function keyword_to_lpeg ( name ) return Q ( Cmt ( C ( identifier ) , function(s,i,a) return string.upper(a) == string.upper(name) end ) ) end local Keyword = P ( false ) local PrefixedKeyword = P ( false ) for _ , x in ipairs ( def_table ) do if x[1] == "morekeywords" or x[1] == "otherkeywords" or x[1] == "moredirectives" or x[1] == "moretexcs" then local keywords = P ( false ) local style = [[\PitonStyle{Keyword}]] if x[1] == "moredirectives" then style = [[ \PitonStyle{Directive} ]] end style = tex_option_arg : match ( x[2] ) or style local n = tonumber ( style ) if n then if n > 1 then style = [[\PitonStyle{Keyword]] .. style .. "}" end end for _ , word in ipairs ( split_clist : match ( x[2] ) ) do if x[1] == "moretexcs" then keywords = Q ( [[\]] .. word ) + keywords else if sensitive then keywords = Q ( word ) + keywords else keywords = keyword_to_lpeg ( word ) + keywords end end end Keyword = Keyword + Lc ( "{" .. style .. "{" ) * keywords * Lc "}}" end if x[1] == "keywordsprefix" then local prefix = ( ( C ( 1 - P " " ) ^ 1 ) * P " " ^ 0 ) : match ( x[2] ) PrefixedKeyword = PrefixedKeyword + K ( 'Keyword' , P ( prefix ) * ( letter ^ 1 + other ) ) end end local long_string = P ( false ) local LongString = P (false ) local central_pattern = P ( false ) for _ , x in ipairs ( def_table ) do if x[1] == "morestring" then arg1 , arg2 , arg3 , arg4 = args_for_morekeywords : match ( x[2] ) arg2 = arg2 or [[\PitonStyle{String.Long}]] if arg1 ~= "s" then arg4 = arg3 end central_pattern = 1 - S ( " \r" .. arg4 ) if arg1 : match "b" then central_pattern = P ( [[\]] .. arg3 ) + central_pattern end if arg1 : match "d" or arg1 == "m" then central_pattern = P ( arg3 .. arg3 ) + central_pattern end if arg1 == "m" then prefix = lpeg.B ( 1 - letter - ")" - "]" ) else prefix = P ( true ) end local pattern = prefix * Q ( arg3 ) * ( VisualSpace + Q ( central_pattern ^ 1 ) + EOL ) ^ 0 * Q ( arg4 ) long_string = long_string + pattern LongString = LongString + Ct ( Cc "Open" * Cc ( "{" .. arg2 .. "{" ) * Cc "}}" ) * pattern * Ct ( Cc "Close" ) end end local braces = Compute_braces ( String ) if piton.beamer then Beamer = Compute_Beamer ( lang , braces ) end DetectedCommands = Compute_DetectedCommands ( lang , braces ) LPEG_cleaner[lang] = Compute_LPEG_cleaner ( lang , braces ) local CommentDelim = P ( false ) for _ , x in ipairs ( def_table ) do if x[1] == "morecomment" then local arg1 , arg2 , other_args = args_for_morecomment : match ( x[2] ) arg2 = arg2 or [[\PitonStyle{Comment}]] if arg1 : match "i" then arg2 = [[\PitonStyle{Discard}]] end if arg1 : match "l" then local arg3 = ( tex_braced_arg + C ( P ( 1 ) ^ 0 * -1 ) ) : match ( other_args ) if arg3 == [[\#]] then arg3 = "#" end -- mandatory CommentDelim = CommentDelim + Ct ( Cc "Open" * Cc ( "{" .. arg2 .. "{" ) * Cc "}}" ) * Q ( arg3 ) * ( CommentMath + Q ( ( 1 - S "$\r" ) ^ 1 ) ) ^ 0 -- $ * Ct ( Cc "Close" ) * ( EOL + -1 ) else local arg3 , arg4 = ( tex_arg * space ^ 0 * tex_arg ) : match ( other_args ) if arg1 : match "s" then CommentDelim = CommentDelim + Ct ( Cc "Open" * Cc ( "{" .. arg2 .. "{" ) * Cc "}}" ) * Q ( arg3 ) * ( CommentMath + Q ( ( 1 - P ( arg4 ) - S "$\r" ) ^ 1 ) -- $ + EOL ) ^ 0 * Q ( arg4 ) * Ct ( Cc "Close" ) end if arg1 : match "n" then CommentDelim = CommentDelim + Ct ( Cc "Open" * Cc ( "{" .. arg2 .. "{" ) * Cc "}}" ) * P { "A" , A = Q ( arg3 ) * ( V "A" + Q ( ( 1 - P ( arg3 ) - P ( arg4 ) - S "\r$\"" ) ^ 1 ) -- $ + long_string + "$" -- $ * K ( 'Comment.Math' , ( 1 - S "$\r" ) ^ 1 ) --$ * "$" -- $ + EOL ) ^ 0 * Q ( arg4 ) } * Ct ( Cc "Close" ) end end end if x[1] == "moredelim" then local arg1 , arg2 , arg3 , arg4 , arg5 = args_for_moredelims : match ( x[2] ) local MyFun = Q if arg1 == "*" or arg1 == "**" then MyFun = function ( x ) return K ( 'ParseAgain.noCR' , x ) end end local left_delim if arg2 : match "i" then left_delim = P ( arg4 ) else left_delim = Q ( arg4 ) end if arg2 : match "l" then CommentDelim = CommentDelim + Ct ( Cc "Open" * Cc ( "{" .. arg3 .. "{" ) * Cc "}}" ) * left_delim * ( MyFun ( ( 1 - P "\r" ) ^ 1 ) ) ^ 0 * Ct ( Cc "Close" ) * ( EOL + -1 ) end if arg2 : match "s" then local right_delim if arg2 : match "i" then right_delim = P ( arg5 ) else right_delim = Q ( arg5 ) end CommentDelim = CommentDelim + Ct ( Cc "Open" * Cc ( "{" .. arg3 .. "{" ) * Cc "}}" ) * left_delim * ( MyFun ( ( 1 - P ( arg5 ) - "\r" ) ^ 1 ) + EOL ) ^ 0 * right_delim * Ct ( Cc "Close" ) end end end local Delim = Q ( S "{[()]}" ) local Punct = Q ( S "=,:;!\\'\"" ) local Main = space ^ 1 * -1 + space ^ 0 * EOL + Space + Tab + Escape + EscapeMath + CommentLaTeX + Beamer + DetectedCommands + CommentDelim + LongString + Delim + PrefixedKeyword + Keyword * ( -1 + # ( 1 - alphanum ) ) + Punct + K ( 'Identifier' , letter * alphanum ^ 0 ) + Number + Word LPEG1[lang] = Main ^ 0 LPEG2[lang] = Ct ( ( space ^ 0 * P "\r" ) ^ -1 * BeamerBeginEnvironments * Lc [[\__piton_begin_line:]] * SpaceIndentation ^ 0 * LPEG1[lang] * -1 * Lc [[\__piton_end_line:]] ) if left_tag then local Tag = Ct ( Cc "Open" * Cc ( "{" .. style_tag .. "{" ) * Cc "}}" ) * Q ( left_tag * other ^ 0 ) -- $ * ( ( ( 1 - P ( right_tag ) ) ^ 0 ) / ( function ( x ) return LPEG0[lang] : match ( x ) end ) ) * Q ( right_tag ) * Ct ( Cc "Close" ) MainWithoutTag = space ^ 1 * -1 + space ^ 0 * EOL + Space + Tab + Escape + EscapeMath + CommentLaTeX + Beamer + DetectedCommands + CommentDelim + Delim + LongString + PrefixedKeyword + Keyword * ( -1 + # ( 1 - alphanum ) ) + Punct + K ( 'Identifier' , letter * alphanum ^ 0 ) + Number + Word LPEG0[lang] = MainWithoutTag ^ 0 local LPEGaux = Tab + Escape + EscapeMath + CommentLaTeX + Beamer + DetectedCommands + CommentDelim + Tag MainWithTag = space ^ 1 * -1 + space ^ 0 * EOL + Space + LPEGaux + Q ( ( 1 - EOL - LPEGaux ) ^ 1 ) LPEG1[lang] = MainWithTag ^ 0 LPEG2[lang] = Ct ( ( space ^ 0 * P "\r" ) ^ -1 * BeamerBeginEnvironments * Lc [[\__piton_begin_line:]] * SpaceIndentation ^ 0 * LPEG1[lang] * -1 * Lc [[\__piton_end_line:]] ) end end