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We check the context: if an identifier is already a function, we interpret it as such, otherwise it is a symbol. This way, in the Equation app, x(x+1) is interpreted as x*(x+1)
49 lines
2.2 KiB
C++
49 lines
2.2 KiB
C++
#ifndef APPS_SHARED_GLOBAL_CONTEXT_H
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#define APPS_SHARED_GLOBAL_CONTEXT_H
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#include <poincare/context.h>
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#include <poincare/matrix.h>
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#include <poincare/float.h>
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#include <poincare/decimal.h>
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#include <poincare/symbol.h>
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#include <ion/storage.h>
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#include <assert.h>
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namespace Shared {
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class GlobalContext final : public Poincare::Context {
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public:
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static constexpr int k_numberOfExtensions = 2;
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static constexpr const char * k_extensions[] = {Ion::Storage::expExtension, Ion::Storage::funcExtension};
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// Storage information
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static bool SymbolAbstractNameIsFree(const char * baseName);
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static const Poincare::Layout LayoutForRecord(Ion::Storage::Record record);
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// Destroy records
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static void DestroyRecordsBaseNamedWithoutExtension(const char * baseName, const char * extension);
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/* Expression for symbol
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* The expression recorded in global context is already an expression.
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* Otherwise, we would need the context and the angle unit to evaluate it */
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SymbolAbstractType expressionTypeForIdentifier(const char * identifier, int length) override;
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const Poincare::Expression expressionForSymbolAbstract(const Poincare::SymbolAbstract & symbol, bool clone) override;
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void setExpressionForSymbolAbstract(const Poincare::Expression & expression, const Poincare::SymbolAbstract & symbol) override;
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private:
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// Expression getters
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static const Poincare::Expression ExpressionForSymbolAndRecord(const Poincare::SymbolAbstract & symbol, Ion::Storage::Record r);
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static const Poincare::Expression ExpressionForActualSymbol(Ion::Storage::Record r);
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static const Poincare::Expression ExpressionForFunction(const Poincare::SymbolAbstract & symbol, Ion::Storage::Record r);
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// Expression setters
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static Ion::Storage::Record::ErrorStatus SetExpressionForActualSymbol(const Poincare::Expression & expression, const Poincare::SymbolAbstract & symbol, Ion::Storage::Record previousRecord);
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static Ion::Storage::Record::ErrorStatus SetExpressionForFunction(const Poincare::Expression & expression, const Poincare::SymbolAbstract & symbol, Ion::Storage::Record previousRecord);
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// Record getter
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static Ion::Storage::Record SymbolAbstractRecordWithBaseName(const char * name);
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};
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}
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#endif
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