summaryrefslogtreecommitdiff
path: root/macros/luatex/latex/piton/piton.lua
diff options
context:
space:
mode:
Diffstat (limited to 'macros/luatex/latex/piton/piton.lua')
-rw-r--r--macros/luatex/latex/piton/piton.lua473
1 files changed, 473 insertions, 0 deletions
diff --git a/macros/luatex/latex/piton/piton.lua b/macros/luatex/latex/piton/piton.lua
new file mode 100644
index 0000000000..8ef48f45b1
--- /dev/null
+++ b/macros/luatex/latex/piton/piton.lua
@@ -0,0 +1,473 @@
+-- -*- coding: utf-8 ; -*-
+--
+-- This is file 'piton.lua' which is a part of the Latex package 'piton'
+-- Copyright (C) 2022 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 version 0.55 of the package 'piton'
+
+local P, S, V , C , Ct, Cc, Cf = lpeg.P, lpeg.S, lpeg.V, lpeg.C, lpeg.Ct, lpeg.Cc, lpeg.Cf
+
+
+--[[ By convention, a capture which provides as value a table (and not a string), provides, in fact,
+a string (the first element of the table) which is a formatting LaTeX instruction (it will be
+thrown back to TeX with normal catcodes (ant not ``other'' catcode for everybody).]]
+
+local function L(string)
+ return lpeg.Cc ( { string } )
+end
+
+local function K(pattern, style)
+ return
+ L ( "{\\PitonStyle{" .. style .. "}{" )
+ * lpeg.C(pattern)
+ * L ( "}}" )
+end
+
+
+--[[ The text in "escape" (between begin_escape and end_escape) is captured
+and put in a table (with only one component). Indeed, we have decided that a capture
+which is encapsulated in a table must be transmitted to TeX with the normal TeX catcodes.]]
+
+local Escape = P(begin_escape)
+ * Ct ( C ( ( 1 - P(end_escape) ) ^ 1 ) )
+ * P(end_escape)
+
+local EOL = ( P "\r" ) * L ( "\\pitonEOL" )
+
+
+
+lpeg.locale(lpeg) -- mandatory
+
+local alpha , digit , space , punct = lpeg.alpha , lpeg.digit , lpeg.space , lpeg.punct
+
+local letter = alpha + S"âàçéèêëïîôûüÂÀÇÉÈÊËÏÎÔÛÜ_"
+
+local alphanum = letter + digit
+
+local identifier = letter * alphanum ^ 0
+
+local Identifier = C ( identifier )
+
+local Space = C ( ( space - P "\r" ) ^ 1 )
+
+local SkipSpace = C ( ( space - P "\r" ) ^ 0 )
+
+local Punct = C ( punct )
+
+
+local Number =
+ K (
+ ( digit^1 * P "." * digit^0 + digit^0 * P "." * digit^1 + digit^1 )
+ * ( S "eE" * S "+-" ^ -1 * digit^1 ) ^ -1
+ + digit^1
+ , 'Number' )
+
+local Word = C ( ( ( 1 - space ) - S "'\"\r[()]" - digit ) ^ 1 )
+
+local Delim = C ( S "[()]" )
+
+
+local Keyword =
+ K ( P "assert" + P "break" + P "case" + P "continue" + P "del"
+ + P "elif" + P "else" + P "except" + P "exec" + P "finally" + P "for" + P "from"
+ + P "global" + P "if" + P "import" + P "lambda" + P "non local"
+ + P "pass" + P "return" + P "try" + P "while"
+ + P "with" + P "yield" + P "yield from" ,
+ 'Keyword' )
+ + K ( P "True" + P "False" + P "None" , 'Keyword.Constant' )
+
+
+local Builtin =
+ K ( P "__import__" + P "abs" + P "all" + P "any" + P "bin" + P "bool" + P "bytearray"
+ + P "bytes" + P "chr" + P "classmethod" + P "compile" + P "complex" + P "delattr"
+ + P "dict" + P "dir" + P "divmod" + P "enumerate" + P "eval" + P "filter"
+ + P "float" + P "format" + P "frozenset" + P "getattr" + P "globals" + P "hasattr"
+ + P "hash" + P "hex" + P "id" + P "input" + P "int" + P "isinstance" + P "issubclass"
+ + P "iter" + P "len" + P "list" + P "locals" + P "map" + P "max" + P "memoryview" + P "min"
+ + P "next" + P "object" + P "oct" + P "open" + P "ord" + P "pow" + P "print" + P "property"
+ + P "range" + P "repr" + P "reversed" + P "round" + P "set" + P "setattr" + P "slice"
+ + P "sorted" + P "staticmethod" + P "str" + P "sum" + P "super" + P "tuple" + P "type"
+ + P "vars" + P "zip" ,
+ 'Name.Builtin' )
+
+
+local Exception =
+ K ( "ArithmeticError" + P "AssertionError" + P "AttributeError"
+ + P "BaseException" + P "BufferError" + P "BytesWarning" + P "DeprecationWarning"
+ + P "EOFError" + P "EnvironmentError" + P "Exception" + P "FloatingPointError"
+ + P "FutureWarning" + P "GeneratorExit" + P "IOError" + P "ImportError"
+ + P "ImportWarning" + P "IndentationError" + P "IndexError" + P "KeyError"
+ + P "KeyboardInterrupt" + P "LookupError" + P "MemoryError" + P "NameError"
+ + P "NotImplementedError" + P "OSError" + P "OverflowError"
+ + P "PendingDeprecationWarning" + P "ReferenceError" + P "ResourceWarning"
+ + P "RuntimeError" + P "RuntimeWarning" + P "StopIteration"
+ + P "SyntaxError" + P "SyntaxWarning" + P "SystemError" + P "SystemExit"
+ + P "TabError" + P "TypeError" + P "UnboundLocalError" + P "UnicodeDecodeError"
+ + P "UnicodeEncodeError" + P "UnicodeError" + P "UnicodeTranslateError"
+ + P "UnicodeWarning" + P "UserWarning" + P "ValueError" + P "VMSError"
+ + P "Warning" + P "WindowsError" + P "ZeroDivisionError"
+ + P "BlockingIOError" + P "ChildProcessError" + P "ConnectionError"
+ + P "BrokenPipeError" + P "ConnectionAbortedError" + P "ConnectionRefusedError"
+ + P "ConnectionResetError" + P "FileExistsError" + P "FileNotFoundError"
+ + P "InterruptedError" + P "IsADirectoryError" + P "NotADirectoryError"
+ + P "PermissionError" + P "ProcessLookupError" + P "TimeoutError"
+ + P "StopAsyncIteration" + P "ModuleNotFoundError" + P "RecursionError" ,
+ 'Exception' )
+
+local RaiseException = K ( P "raise" , 'Keyword' ) * SkipSpace * Exception * C ( P "(" )
+
+local ExceptionInConsole = Exception * C ( ( 1 - P "\r" ) ^ 0 ) * EOL
+
+
+local Namespace =
+ K ( P "from" , 'Keyword' ) * Space * K ( alphanum^1 , 'Name.Namespace' )
+ * ( Space * K ( P "import" , 'Keyword' ) ) ^ -1
+
+
+local ImportAs = K ( P "import" , 'Keyword' )
+ * Space
+ * K ( identifier , 'Name.Namespace' )
+ * ( SkipSpace * C ( P "," ) * SkipSpace * K ( identifier , 'Name.Namespace' ) ) ^ 0
+ * (
+ Space * K ( P "as" , 'Keyword' ) * Space * K ( identifier , 'Name.Namespace' )
+ ) ^ 0
+
+local Class = K ( P "class" , 'Keyword' ) * Space * K ( identifier , 'Name.Class' )
+
+local Decorator = K ( P "@" * letter^1 , 'Name.Decorator' )
+
+local SingleShortInterpol =
+ K ( P "{" , 'String.Interpol')
+ * K ( ( 1 - S "}':" ) ^ 0 , 'Interpol.Inside' )
+ * C ( P ":" * (1 - S "}:'") ^ 0 ) ^ -1
+ * K ( P "}" , 'String.Interpol' )
+
+local DoubleShortInterpol =
+ K ( P "{" , 'String.Interpol' )
+ * K ( ( 1 - S "}\":" ) ^ 0 , 'Interpol.Inside' )
+ * ( K ( P ":" , 'String.Interpol' ) * C ( (1 - S "}:\"") ^ 0 ) ) ^ -1
+ * K ( P "}" , 'String.Interpol' )
+
+local SingleLongInterpol =
+ K ( P "{" , 'String.Interpol' )
+ * K ( ( 1 - S "}:\r" - P "'''" ) ^ 0 , 'Interpol.Inside' )
+ * C ( P ":" * (1 - S "}:\r" - P "'''" ) ^ 0 ) ^ -1
+ * K ( P "}" , 'String.Interpol' )
+
+local DoubleLongInterpol =
+ K ( P "{" , 'String.Interpol' )
+ * K ( ( 1 - S "}:\r" - P "\"\"\"" ) ^ 0 , 'Interpol.Inside' )
+ * C ( P ":" * (1 - S "}:\r" - P "\"\"\"" ) ^ 0 ) ^ -1
+ * K ( P "}" , 'String.Interpol' )
+
+local SingleShortPureString = C ( ( P "\\'" + P "{{" + P "}}" + 1 - S "{}'" ) ^ 1 )
+
+local DoubleShortPureString = C ( ( P "\\\"" + P "{{" + P "}}" + 1 - S "{}\"" ) ^ 1 )
+
+local SingleLongPureString = C ( ( 1 - P "'''" - S "{}'\r" ) ^ 1 )
+
+local DoubleLongPureString = C ( ( 1 - P "\"\"\"" - S "{}\"\r" ) ^ 1 )
+
+local SingleShortString =
+ L ( "{\\PitonStyle{String.Short}{" )
+ * (
+ C ( P "f'" + P "F'" )
+ * ( SingleShortInterpol + SingleShortPureString ) ^ 0
+ * C ( P "'" )
+ +
+ C ( ( P "'" + P "r'" + P "R'" ) * ( P "\\'" + 1 - S "'\r" ) ^ 0 * P "'" )
+ )
+ * L ( "}}" )
+
+local DoubleShortString =
+ L ( "{\\PitonStyle{String.Short}{" )
+ * (
+ C ( P "f\"" + P "F\"" )
+ * ( DoubleShortInterpol + DoubleShortPureString ) ^ 0
+ * C ( P "\"" )
+ +
+ C ( ( P "\"" + P "r\"" + P "R\"" ) * ( P "\\\"" + 1 - S "\"\r" ) ^ 0 * P "\"" )
+ )
+ * L ( "}}" )
+
+
+local ShortString = SingleShortString + DoubleShortString
+
+
+local SingleLongString =
+ L "{\\PitonStyle{String.Long}{"
+ * (
+ C ( S "fF" * P "'''" )
+ * ( SingleLongInterpol + SingleLongPureString ) ^ 0
+ * L "}}"
+ * (
+ EOL
+ +
+ L "{\\PitonStyle{String.Long}{"
+ * ( SingleLongInterpol + SingleLongPureString ) ^ 0
+ * L "}}"
+ * EOL
+ ) ^ 0
+ * L "{\\PitonStyle{String.Long}{"
+ * ( SingleLongInterpol + SingleLongPureString ) ^ 0
+ +
+ C ( ( S "rR" ) ^ -1 * P "'''" * ( 1 - P "'''" - P "\r" ) ^ 0 )
+ * L "}}"
+ * (
+ L "{\\PitonStyle{String.Long}{"
+ * C ( ( 1 - P "'''" - P "\r" ) ^ 0 )
+ * L "}}"
+ * EOL
+ ) ^ 0
+ * L "{\\PitonStyle{String.Long}{"
+ * C ( ( 1 - P "'''" - P "\r" ) ^ 0 )
+ )
+ * C ( P "'''" )
+ * L "}}"
+
+
+local DoubleLongString =
+ L "{\\PitonStyle{String.Long}{"
+ * (
+ C ( S "fF" * P "\"\"\"" )
+ * ( DoubleLongInterpol + DoubleLongPureString ) ^ 0
+ * L "}}"
+ * (
+ EOL
+ +
+ L "{\\PitonStyle{String.Long}{"
+ * ( DoubleLongInterpol + DoubleLongPureString ) ^ 0
+ * L "}}"
+ * EOL
+ ) ^ 0
+ * L "{\\PitonStyle{String.Long}{"
+ * ( DoubleLongInterpol + DoubleLongPureString ) ^ 0
+ +
+ C ( ( S "rR" ) ^ -1 * P "\"\"\"" * ( 1 - P "\"\"\"" - P "\r" ) ^ 0 )
+ * L "}}"
+ * (
+ L "{\\PitonStyle{String.Long}{"
+ * C ( ( 1 - P "\"\"\"" - P "\r" ) ^ 0 )
+ * L "}}"
+ * EOL
+ ) ^ 0
+ * L "{\\PitonStyle{String.Long}{"
+ * C ( ( 1 - P "\"\"\"" - P "\r" ) ^ 0 )
+ )
+ * C ( P "\"\"\"" )
+ * L "}}"
+
+
+
+local LongString = SingleLongString + DoubleLongString
+
+
+local Expression =
+ P { "E" ,
+ E = ( 1 - S "{}()[]\r," ) ^ 0
+ * (
+ ( P "{" * V "F" * P "}"
+ + P "(" * V "F" * P ")"
+ + P "[" * V "F" * P "]" ) * ( 1 - S "{}()[]\r," ) ^ 0
+ ) ^ 0 ,
+ F = ( 1 - S "{}()[]\r\"'" ) ^ 0
+ * ( (
+ P "'" * (P "\\'" + 1 - S"'\r" )^0 * P "'"
+ + P "\"" * (P "\\\"" + 1 - S"\"\r" )^0 * P "\""
+ + P "{" * V "F" * P "}"
+ + P "(" * V "F" * P ")"
+ + P "[" * V "F" * P "]"
+ ) * ( 1 - S "{}()[]\r\"'" ) ^ 0 ) ^ 0 ,
+ }
+
+local Param = SkipSpace * K ( identifier , '' ) * SkipSpace
+ * ( K ( P "=" * Expression , 'InitialValues' )
+ + K ( P ":" , '' ) * SkipSpace * K ( letter^1 , 'Name.Type' ))
+ + SkipSpace * K ( alphanum ^ 1 , '' ) * SkipSpace
+
+local Params = Param * ( K ( P "," , '' ) * Param ) ^ 0
+
+local StringDoc = K ( P "\"\"\"" , 'String.Doc' )
+ * ( K ( (1 - P "\"\"\"" - P "\r" ) ^ 0 , 'String.Doc' ) * EOL ) ^ 0
+ * K ( ( 1 - P "\"\"\"" - P "\r" ) ^ 0 * P "\"\"\"" , 'String.Doc' )
+ + K ( P "'''" , 'String.Doc' )
+ * ( K ( (1 - P "'''" - P "\r")^0 , 'String.Doc' ) * EOL ) ^ 0
+ * K ( ( 1 - P "'''" - P "\r")^0 * P "'''" , 'String.Doc' )
+
+local CommentMath = P "$" * K ( ( 1 - S "$\r" ) ^ 1 , 'Comment.Math' ) * P "$"
+
+
+local Comment = L ( "{\\pitonStyleComment {" )
+ * C ( P "#" ) * ( CommentMath + C ( ( 1 - S "$\r" ) ^ 1 ) ) ^ 0
+ * L ( "}}" )
+ * ( EOL + -1 )
+
+local CommentLaTeX =
+ P "##"
+ * L "{\\PitonStyle{Comment.LaTeX}{"
+ * Ct ( C ( ( 1 - P "\r" ) ^ 0 ) )
+ * L "}}"
+ * ( EOL + -1 )
+
+local DefFunction =
+ K ( P "def" , 'Keyword' )
+ * Space
+ * K ( identifier , 'Name.Function' )
+ * ( SkipSpace * K ( P "(" , '' ) * Params * K ( P ")" , '' ) ) ^ -1
+ * ( SkipSpace
+ * K ( ( 1 - S ":\r" )^0 , 'Post.Function' )
+ * K ( P ":" , 'Keyword' )
+ * SkipSpace
+ * ( EOL + CommentLaTeX + Comment )
+ * SkipSpace
+ * StringDoc ) ^ -1
+
+local ItemDict = ShortString * SkipSpace * C ( P ":" ) * K ( Expression , 'Dict.Value' )
+
+local ItemOfSet = SkipSpace * ( ItemDict + ShortString ) * SkipSpace
+
+local Set = C ( P "{" )
+ * ItemOfSet * ( C ( P "," ) * ItemOfSet ) ^ 0
+ * C ( P "}" )
+
+
+local Operator = K ( P "!=" + P "==" + P "<<" + P ">>" + S "-~+/*%=<>&.@|" , 'Operator')
+
+local OperatorWord = K ( P "in" + P "is" + P "and" + P "or" + P "not" , 'Operator.Word')
+
+local SyntaxPython =
+ ( ( space - P "\r" ) ^0 * P "\r" ) ^ -1 * space ^ -1 *
+ ( ( space^1 * -1 )
+ + EOL
+ + Space
+ + Escape
+ + CommentLaTeX
+ + LongString
+ + Comment
+ + ExceptionInConsole
+ + Set
+ + Delim
+ + Class * ( Space + Punct + EOL )
+ + Namespace * ( Space + Punct + EOL )
+ + ImportAs
+ + RaiseException
+ + Keyword * ( Space + Punct + EOL )
+ + DefFunction
+ + ShortString
+ + Decorator * ( Space + Punct + EOL )
+ + Operator
+ + OperatorWord * ( Space + Punct + EOL )
+ + Builtin * ( Space + Punct + EOL )
+ + Identifier
+ + Number
+ + Word
+ ) ^0 * -1
+
+
+local MinimalSyntax =
+ P { "S" ;
+ S = K ( (1 - P "\r" ) ^ 0 , '') + EOL * S
+ }
+
+
+--- with cctab, all characters including spaces have catcode 12
+local cctab = luatexbase.catcodetables.CatcodeTableOther
+
+function Parse(code)
+ local t = Ct(SyntaxPython) : match(code)
+ if t then else t = Ct(MinimalSyntax) : match(code) end
+ for i = 1 , #t do
+ if type(t[i]) == 'string'
+ then
+ tex.sprint(cctab, t[i])
+ else
+ tex.sprint( t[i][1] )
+ end
+ end
+end
+
+function ParseFile(name)
+ s = ''
+ for line in io.lines(name) do s = s .. '\r' .. line end
+ Parse(s)
+end
+
+
+function define_gobble_syntax(n)
+ GobbleSyntax = ( 1 - P "\r" ) ^ (-n) * C ( ( 1 - P "\r" ) ^0 )
+ * ( C ( P "\r" )
+ * ( 1 - P "\r" ) ^ (-n)
+ * C ( ( 1 - P "\r" ) ^0 )
+ ) ^ 0
+end
+
+function GobbleParse(code)
+ local t = Ct(GobbleSyntax):match(code)
+ local new_code = ""
+ for i = 1 , #t do
+ new_code = new_code .. t[i]
+ end
+ Parse(new_code)
+end
+
+
+function min(x,y)
+ if x <= y
+ then return x
+ else return y
+ end
+end
+
+function add(acc,new_value)
+ return acc + new_value
+end
+
+
+--[[ The following LPEG returns as capture the minimal number of spaces at
+the beginning of the lines of code]]
+AutoGobbleSyntax =
+ ( space ^ 0 * P "\r" ) ^ -1
+ * Cf (
+ (
+ ( P " " ) ^ 0 * P "\r"
+ +
+ Cf ( Cc(0) * ( P " " * Cc(1) ) ^ 0 , add )
+ * ( 1 - P " " ) * ( 1 - P "\r" ) ^ 0 * P "\r"
+ ) ^ 0
+ *
+ ( Cf ( Cc(0) * ( P " " * Cc(1) ) ^ 0 , add )
+ * ( 1 - P " " ) * ( 1 - P "\r" ) ^ 0 ) ^ -1 ,
+ min
+ )
+
+
+function AutoGobbleParse(code)
+ local n = AutoGobbleSyntax:match(code)
+ if n==0
+ then Parse(code)
+ else define_gobble_syntax(n)
+ GobbleParse(code)
+ end
+end
+
+
+
+
+
+
+
+
+
+
+