Keith Winstein
37 lines
686 B
C++
37 lines
686 B
C++
#include <assert.h>
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#include <typeinfo>
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#include "parser.hpp"
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static void append_or_delete( Parser::Action *act,
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std::vector<Parser::Action *>&vec )
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{
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assert( act );
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if ( typeid( *act ) != typeid( Parser::Ignore ) ) {
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vec.push_back( act );
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} else {
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delete act;
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}
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}
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std::vector<Parser::Action *> Parser::Parser::input( wchar_t ch )
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{
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std::vector<Action *> ret;
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Transition tx = state->input( ch );
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if ( tx.next_state != NULL ) {
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append_or_delete( state->exit(), ret );
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}
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append_or_delete( tx.action, ret );
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if ( tx.next_state != NULL ) {
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append_or_delete( tx.next_state->enter(), ret );
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state = tx.next_state;
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}
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return ret;
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}
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