51 lines
1.8 KiB
C++
51 lines
1.8 KiB
C++
#include "__if.h"
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#include "Exception.h"
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#include <iostream>
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#include "Expression.h"
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namespace jet {
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__if::__if(coreutils::ZString &in, coreutils::MString &parent, Global &global) : Tag(in, parent, global, "else") {
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coreutils::MString result;
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bool booleanResult = false;
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if(variableDefined("value1")) {
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if(variableDefined("expr"))
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throw coreutils::Exception("Either value1 or expr can be specified but not both.");
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if(variableDefined("value2")) {
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if(variableDefined("type")) {
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result = Expression(variables["expr"]);
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} else
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throw coreutils::Exception("type expected if value1 and value2 specified.");
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} else
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throw coreutils::Exception("value2 required if value1 specified.");
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if(!variableDefined("type"))
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throw coreutils::Exception("type required for a value1 and value2 comparison.");
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int rc = variables["value1"].compare(variables["value2"]);
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if(((variables["type"] == "eq") && (rc == 0)) ||
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((variables["type"] == "ne") && (rc != 0)) ||
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((variables["type"] == "lt") && (rc == -1)) ||
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((variables["type"] == "le") && (rc != 1)) ||
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((variables["type"] == "gt") && (rc == 1)) ||
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((variables["type"] == "ge") && (rc != -1)))
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booleanResult = true;
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else
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throw coreutils::Exception("type value must be 'eq','ne','lt','le','gt','ge'.");
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} else if(variableDefined("expr")) {
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if(variableDefined("value2"))
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throw coreutils::Exception("value2 should not be specified with expr.");
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if(variableDefined("type"))
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throw coreutils::Exception("type should not be specified with expr.");
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result = Expression(variables["expr"]);
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booleanResult = true;
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}
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if(booleanResult)
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processContainer(container);
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else if(hasContainer2)
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processContainer(container2);
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}
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}
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