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new operator ':=', it assigns a value to a variable by deep copy

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This commit is contained in:
Celestino Amoroso
2026-05-17 05:02:07 +02:00
parent 08617378e0
commit 0c719025cd
9 changed files with 201 additions and 198 deletions
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scan/symbol.go
+67 -66
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@@ -1,7 +1,7 @@
// Copyright (c) 2024-2026 Celestino Amoroso (celestino.amoroso@gmail.com).
// All rights reserved.
// Symbol.go
// symbol.go
package scan
type Symbol int16
@@ -39,71 +39,72 @@ const (
SymAt // 28: '@'
SymUndescore // 29: '_'
SymEqual // 30: '='
SymDoubleEqual // 31: '=='
SymLess // 32: '<'
SymLessOrEqual // 33: '<='
SymGreater // 34: '>'
SymGreaterOrEqual // 35: '>='
SymLessGreater // 36: '<>'
SymNotEqual // 37: '!='
SymDollar // 38: '$'
SymHash // 39: '#'
SymOpenRound // 40: '('
SymClosedRound // 41: ')'
SymOpenSquare // 42: '['
SymClosedSquare // 43: ']'
SymOpenBrace // 44: '{'
SymClosedBrace // 45: '}'
SymTilde // 46: '~'
SymDoubleQuestion // 47: '??'
SymQuestionEqual // 48: '?='
SymQuestionExclam // 49: '?!'
SymDoubleAt // 50: '@@'
SymDoubleColon // 51: '::'
SymDoubleGreater // 52: '>>'
SymDoubleLess // 53: '<<'
SymCaret // 54: '^'
SymDollarRound // 55: '$('
SymOpenClosedRound // 56: '()'
SymDoubleDollar // 57: '$$'
SymDoubleDot // 58: '..'
SymTripleDot // 59: '...'
SymStarEqual // 60: '*='
SymSlashEqual // 61: '/='
SymPercEqual // 62: '%='
SymDoubleLessEqual // 63: '<<='
SymDoubleGreaterEqual // 64: '>>='
SymAmpersandEqual // 65: '&='
SymVertBarEqual // 65: '|='
SymCaretEqual // 66: '^='
SymPlusGreater // 67: '+>'
SymLessPlus // 68: '<+'
SymChangeSign
SymUnchangeSign
SymDereference
SymPreInc
SymPreDec
SymIdentifier
SymBool
SymInteger
SymVariable
SymFloat
SymFraction
SymString
SymIterator
SymOr
SymAnd
SymNot
SymComment
SymFuncCall
SymFuncDef
SymList
SymDict
SymIndex
SymRange // [index : index]
SymExpression
SymSelector // <selector> ::= <expr> "?" <selector-case> {":" <selector-case>} ["::" <default-selector-case>]
SymSelectorCase // <selector-case> ::= [<list>] "{" <multi-expr> "}"
SymColonEqual // 31: ':='
SymDoubleEqual // 32: '=='
SymLess // 33: '<'
SymLessOrEqual // 34: '<='
SymGreater // 35: '>'
SymGreaterOrEqual // 36: '>='
SymLessGreater // 37: '<>'
SymNotEqual // 38: '!='
SymDollar // 39: '$'
SymHash // 40: '#'
SymOpenRound // 41: '('
SymClosedRound // 42: ')'
SymOpenSquare // 43: '['
SymClosedSquare // 44: ']'
SymOpenBrace // 45: '{'
SymClosedBrace // 46: '}'
SymTilde // 47: '~'
SymDoubleQuestion // 48: '??'
SymQuestionEqual // 49: '?='
SymQuestionExclam // 50: '?!'
SymDoubleAt // 51: '@@'
SymDoubleColon // 52: '::'
SymDoubleGreater // 53: '>>'
SymDoubleLess // 54: '<<'
SymCaret // 55: '^'
SymDollarRound // 56: '$('
SymOpenClosedRound // 57: '()'
SymDoubleDollar // 58: '$$'
SymDoubleDot // 59: '..'
SymTripleDot // 60: '...'
SymStarEqual // 61: '*='
SymSlashEqual // 62: '/='
SymPercEqual // 63: '%='
SymDoubleLessEqual // 64: '<<='
SymDoubleGreaterEqual // 65: '>>='
SymAmpersandEqual // 66: '&='
SymVertBarEqual // 67: '|='
SymCaretEqual // 68: '^='
SymPlusGreater // 69: '+>'
SymLessPlus // 70: '<+'
SymChangeSign // 71: '-'
SymUnchangeSign // 72: '+''
SymDereference // 73: '*'
SymPreInc // 74: '++'
SymPreDec // 75: '--'
SymIdentifier // 76: identifier
SymBool // 77: boolean
SymInteger // 78: integer
SymVariable // 79: variable
SymFloat // 80: float
SymFraction // 81: fraction
SymString // 82: string
SymIterator // 83: iterator
SymOr // 84: 'or'
SymAnd // 85: 'and'
SymNot // 86: 'not'
SymComment // 87: comment
SymFuncCall // 88: function call
SymFuncDef // 89: function definition
SymList // 90: list
SymDict // 91: dict
SymIndex // 92: index
SymRange // 93: range [index : index]
SymExpression // 94: expression
SymSelector // 95: selector <selector> ::= <expr> "?" <selector-case> {":" <selector-case>} ["::" <default-selector-case>]
SymSelectorCase // 96: <selector-case> ::= [<list>] "{" <multi-expr> "}"
// SymOpenComment // 0: '/*'
// SymClosedComment // 0: '*/'
// SymOneLineComment // 0: '//'