symbol-map.go: improved detection of incomplete operations
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01c04feea5
commit
d25bd325b7
178
symbol-map.go
178
symbol-map.go
@ -14,7 +14,7 @@ type symbolClass int16
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const (
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symClassOperator symbolClass = iota
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symClassPostOp
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symClassCommand
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symClassIdentifier
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symClassDelimiter
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symClassParenthesis
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@ -26,81 +26,82 @@ const (
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type symbolSpec struct {
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repr string
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kind symbolClass
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opType termPosition
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}
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func init() {
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symbolMap = map[Symbol]symbolSpec{
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SymUnknown: {"<unknown>", symClassOther}, // -1: Unknown symbol
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SymNone: {"<null>", symClassOther}, // 0: Null value for variable of type symbol
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SymError: {"<error>", symClassOther}, // 1: Error reading from stream
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SymEos: {"<eos>", symClassOther}, // 2: End of stream
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SymMinus: {"-", symClassOperator}, // 3: '-'
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SymMinusEqual: {"-=", symClassOperator}, // 4: '-='
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SymDoubleMinus: {"--", symClassOperator}, // 5: '--'
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SymPlus: {"+", symClassOperator}, // 6: '+'
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SymPlusEqual: {"+=", symClassOperator}, // 7: '+='
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SymDoublePlus: {"++", symClassOperator}, // 8: '++'
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SymStar: {"*", symClassOperator}, // 9: '*'
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SymDoubleStar: {"**", symClassOperator}, // 10: '**'
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SymSlash: {"/", symClassOperator}, // 11: '/'
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SymBackSlash: {"\\", symClassOperator}, // 12: '\'
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SymVertBar: {"|", symClassOperator}, // 13: '|'
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SymDoubleVertBar: {"||", symClassOperator}, // 14: '||'
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SymComma: {",", symClassOperator}, // 15: ','
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SymColon: {":", symClassOperator}, // 16: ':'
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SymSemiColon: {";", symClassOperator}, // 17: ';'
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SymDot: {".", symClassOperator}, // 18: '.'
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SymDotSlash: {"./", symClassOperator}, // 19: './'
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SymQuote: {"'", symClassDelimiter}, // 20: '\''
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SymDoubleQuote: {"\"", symClassDelimiter}, // 21: '"'
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SymBackTick: {"`", symClassOperator}, // 22: '`'
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SymExclamation: {"!", symClassPostOp}, // 23: '!'
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SymQuestion: {"?", symClassOperator}, // 24: '?'
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SymAmpersand: {"&", symClassOperator}, // 25: '&'
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SymDoubleAmpersand: {"&&", symClassOperator}, // 26: '&&'
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SymPercent: {"%", symClassOperator}, // 27: '%'
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SymAt: {"@", symClassOperator}, // 28: '@'
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SymUndescore: {"_", symClassOperator}, // 29: '_'
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SymEqual: {"=", symClassOperator}, // 30: '='
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SymDoubleEqual: {"==", symClassOperator}, // 31: '=='
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SymLess: {"<", symClassOperator}, // 32: '<'
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SymLessOrEqual: {"<=", symClassOperator}, // 33: '<='
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SymGreater: {">", symClassOperator}, // 34: '>'
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SymGreaterOrEqual: {">=", symClassOperator}, // 35: '>='
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SymLessGreater: {"<>", symClassOperator}, // 36: '<>'
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SymNotEqual: {"!=", symClassOperator}, // 37: '!='
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SymDollar: {"$", symClassOperator}, // 38: '$'
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SymHash: {"#", symClassOperator}, // 39: '#'
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SymOpenRound: {"(", symClassParenthesis}, // 40: '('
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SymClosedRound: {")", symClassParenthesis}, // 41: ')'
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SymOpenSquare: {"[", symClassParenthesis}, // 42: '['
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SymClosedSquare: {"]", symClassParenthesis}, // 43: ']'
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SymOpenBrace: {"{", symClassParenthesis}, // 44: '{'
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SymClosedBrace: {"}", symClassParenthesis}, // 45: '}'
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SymTilde: {"~", symClassOperator}, // 46: '~'
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SymDoubleQuestion: {"??", symClassOperator}, // 47: '??'
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SymQuestionEqual: {"?=", symClassOperator}, // 48: '?='
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SymQuestionExclam: {"?!", symClassOperator}, // 49: '?!'
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SymDoubleAt: {"@@", symClassOperator}, // 50: '@@'
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SymDoubleColon: {"::", symClassOperator}, // 51: '::'
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SymDoubleGreater: {">>", symClassOperator}, // 52: '>>'
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SymDoubleLess: {"<<", symClassOperator}, // 53: '<<'
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SymCaret: {"^", symClassOperator}, // 54: '^'
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SymDollarRound: {"$(", symClassOperator}, // 55: '$('
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SymOpenClosedRound: {"()", symClassPostOp}, // 56: '()'
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SymDoubleDollar: {"$$", symClassOperator}, // 57: '$$'
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SymDoubleDot: {"..", symClassOperator}, // 58: '..'
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SymTripleDot: {"...", symClassOperator}, // 59: '...'
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SymStarEqual: {"*=", symClassOperator}, // 60: '*='
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SymSlashEqual: {"/=", symClassOperator}, // 61: '/='
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SymPercEqual: {"%=", symClassOperator}, // 62: '%='
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SymDoubleLessEqual: {"<<=", symClassOperator}, // 63: '<<='
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SymDoubleGreaterEqual: {">>=", symClassOperator}, // 64: '>>='
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SymAmpersandEqual: {"&=", symClassOperator}, // 65: '&='
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SymVertBarEqual: {"|=", symClassOperator}, // 65: '|='
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SymPlusGreater: {"+>", symClassOperator}, // 66: '+>'
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SymLessPlus: {"<+", symClassOperator}, // 67: '<+'
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SymUnknown: {"<unknown>", symClassOther, posLeaf}, // -1: Unknown symbol
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SymNone: {"<null>", symClassOther, posLeaf}, // 0: Null value for variable of type symbol
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SymError: {"<error>", symClassOther, posLeaf}, // 1: Error reading from stream
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SymEos: {"<eos>", symClassOther, posLeaf}, // 2: End of stream
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SymMinus: {"-", symClassOperator, posInfix}, // 3: '-'
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SymMinusEqual: {"-=", symClassOperator, posInfix}, // 4: '-='
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SymDoubleMinus: {"--", symClassOperator, posPostfix}, // 5: '--'
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SymPlus: {"+", symClassOperator, posInfix}, // 6: '+'
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SymPlusEqual: {"+=", symClassOperator, posInfix}, // 7: '+='
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SymDoublePlus: {"++", symClassOperator, posPostfix}, // 8: '++'
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SymStar: {"*", symClassOperator, posInfix}, // 9: '*'
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SymDoubleStar: {"**", symClassOperator, posInfix}, // 10: '**'
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SymSlash: {"/", symClassOperator, posInfix}, // 11: '/'
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SymBackSlash: {"\\", symClassOperator, posLeaf}, // 12: '\'
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SymVertBar: {"|", symClassOperator, posInfix}, // 13: '|'
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SymDoubleVertBar: {"||", symClassOperator, posInfix}, // 14: '||'
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SymComma: {",", symClassOperator, posInfix}, // 15: ','
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SymColon: {":", symClassOperator, posInfix}, // 16: ':'
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SymSemiColon: {";", symClassOperator, posInfix}, // 17: ';'
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SymDot: {".", symClassOperator, posInfix}, // 18: '.'
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SymDotSlash: {"./", symClassOperator, posInfix}, // 19: './'
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SymQuote: {"'", symClassDelimiter, posLeaf}, // 20: '\''
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SymDoubleQuote: {"\"", symClassDelimiter, posLeaf}, // 21: '"'
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SymBackTick: {"`", symClassDelimiter, posLeaf}, // 22: '`'
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SymExclamation: {"!", symClassOperator, posPostfix}, // 23: '!'
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SymQuestion: {"?", symClassOperator, posInfix}, // 24: '?'
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SymAmpersand: {"&", symClassOperator, posInfix}, // 25: '&'
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SymDoubleAmpersand: {"&&", symClassOperator, posInfix}, // 26: '&&'
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SymPercent: {"%", symClassOperator, posInfix}, // 27: '%'
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SymAt: {"@", symClassOperator, posPrefix}, // 28: '@'
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SymUndescore: {"_", symClassIdentifier, posLeaf}, // 29: '_'
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SymEqual: {"=", symClassOperator, posInfix}, // 30: '='
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SymDoubleEqual: {"==", symClassOperator, posInfix}, // 31: '=='
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SymLess: {"<", symClassOperator, posInfix}, // 32: '<'
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SymLessOrEqual: {"<=", symClassOperator, posInfix}, // 33: '<='
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SymGreater: {">", symClassOperator, posInfix}, // 34: '>'
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SymGreaterOrEqual: {">=", symClassOperator, posInfix}, // 35: '>='
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SymLessGreater: {"<>", symClassOperator, posInfix}, // 36: '<>'
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SymNotEqual: {"!=", symClassOperator, posInfix}, // 37: '!='
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SymDollar: {"$", symClassOperator, posPrefix}, // 38: '$'
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SymHash: {"#", symClassOperator, posPrefix}, // 39: '#'
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SymOpenRound: {"(", symClassParenthesis, posPrefix}, // 40: '('
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SymClosedRound: {")", symClassParenthesis, posPostfix}, // 41: ')'
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SymOpenSquare: {"[", symClassParenthesis, posPrefix}, // 42: '['
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SymClosedSquare: {"]", symClassParenthesis, posPostfix}, // 43: ']'
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SymOpenBrace: {"{", symClassParenthesis, posPrefix}, // 44: '{'
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SymClosedBrace: {"}", symClassParenthesis, posPostfix}, // 45: '}'
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SymTilde: {"~", symClassOperator, posPrefix}, // 46: '~'
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SymDoubleQuestion: {"??", symClassOperator, posInfix}, // 47: '??'
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SymQuestionEqual: {"?=", symClassOperator, posInfix}, // 48: '?='
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SymQuestionExclam: {"?!", symClassOperator, posInfix}, // 49: '?!'
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SymDoubleAt: {"@@", symClassCommand, posLeaf}, // 50: '@@'
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SymDoubleColon: {"::", symClassOperator, posInfix}, // 51: '::'
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SymDoubleGreater: {">>", symClassOperator, posInfix}, // 52: '>>'
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SymDoubleLess: {"<<", symClassOperator, posInfix}, // 53: '<<'
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SymCaret: {"^", symClassOperator, posInfix}, // 54: '^'
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SymDollarRound: {"$(", symClassOperator, posPrefix}, // 55: '$('
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SymOpenClosedRound: {"()", symClassOperator, posPostfix}, // 56: '()'
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SymDoubleDollar: {"$$", symClassCommand, posLeaf}, // 57: '$$'
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SymDoubleDot: {"..", symClassOperator, posInfix}, // 58: '..'
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SymTripleDot: {"...", symClassOperator, posPostfix}, // 59: '...'
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SymStarEqual: {"*=", symClassOperator, posInfix}, // 60: '*='
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SymSlashEqual: {"/=", symClassOperator, posInfix}, // 61: '/='
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SymPercEqual: {"%=", symClassOperator, posInfix}, // 62: '%='
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SymDoubleLessEqual: {"<<=", symClassOperator, posInfix}, // 63: '<<='
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SymDoubleGreaterEqual: {">>=", symClassOperator, posInfix}, // 64: '>>='
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SymAmpersandEqual: {"&=", symClassOperator, posInfix}, // 65: '&='
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SymVertBarEqual: {"|=", symClassOperator, posInfix}, // 65: '|='
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SymPlusGreater: {"+>", symClassOperator, posInfix}, // 66: '+>'
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SymLessPlus: {"<+", symClassOperator, posInfix}, // 67: '<+'
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// SymChangeSign
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// SymUnchangeSign
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// SymIdentifier
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@ -127,17 +128,17 @@ func init() {
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// // SymClosedComment // 0: '*/'
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// // SymOneLineComment // 0: '//'
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// keywordBase
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SymKwAnd: {"and", symClassOperator},
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SymKwNot: {"not", symClassOperator},
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SymKwOr: {"or", symClassOperator},
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SymKwBut: {"but", symClassOperator},
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SymKwFunc: {"func(", symClassDeclaration},
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SymKwBuiltin: {"builtin", symClassOperator},
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SymKwPlugin: {"plugin", symClassOperator},
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SymKwIn: {"in", symClassOperator},
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SymKwInclude: {"include", symClassOperator},
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SymKwNil: {"nil", symClassValue},
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SymKwUnset: {"unset", symClassOperator},
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SymKwAnd: {"and", symClassOperator, posInfix},
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SymKwNot: {"not", symClassOperator, posInfix},
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SymKwOr: {"or", symClassOperator, posInfix},
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SymKwBut: {"but", symClassOperator, posInfix},
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SymKwFunc: {"func(", symClassDeclaration, posPrefix},
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SymKwBuiltin: {"builtin", symClassOperator, posPrefix},
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SymKwPlugin: {"plugin", symClassOperator, posPrefix},
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SymKwIn: {"in", symClassOperator, posInfix},
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SymKwInclude: {"include", symClassOperator, posPrefix},
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SymKwNil: {"nil", symClassValue, posLeaf},
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SymKwUnset: {"unset", symClassOperator, posPrefix},
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}
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}
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@ -175,12 +176,19 @@ func StringEndsWithOperator(s string) bool {
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}
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func endingOperator(s string) (sym Symbol) {
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var matchLength = 0
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sym = SymNone
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lower := strings.ToLower(s)
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lower := strings.TrimRight(strings.ToLower(s), " \t")
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for symbol, spec := range symbolMap {
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if spec.kind == symClassOperator && strings.HasSuffix(lower, spec.repr) {
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if strings.HasSuffix(lower, spec.repr) {
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if len(spec.repr) > matchLength {
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matchLength = len(spec.repr)
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if spec.kind == symClassOperator && (spec.opType == posInfix || spec.opType == posPrefix) {
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sym = symbol
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break
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} else {
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sym = SymNone
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}
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}
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}
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}
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return
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