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8c95516224
- updaterevision for automated revision string generation - re2c as a prerequisite to use sc_man in the future - zipdir to automatically generate an engine resource file.
55 lines
788 B
C++
55 lines
788 B
C++
#include "src/util/c99_stdint.h"
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#include "src/ir/regexp/regexp.h"
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#include "src/ir/regexp/regexp_alt.h"
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#include "src/ir/regexp/regexp_cat.h"
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#include "src/ir/regexp/regexp_match.h"
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#include "src/ir/regexp/regexp_null.h"
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namespace re2c
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{
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uint32_t RegExp::fixedLength ()
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{
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return ~0u;
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}
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uint32_t AltOp::fixedLength ()
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{
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uint32_t l1 = exp1->fixedLength ();
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uint32_t l2 = exp1->fixedLength ();
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if (l1 != l2 || l1 == ~0u)
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{
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return ~0u;
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}
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return l1;
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}
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uint32_t CatOp::fixedLength ()
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{
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const uint32_t l1 = exp1->fixedLength ();
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if (l1 != ~0u)
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{
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const uint32_t l2 = exp2->fixedLength ();
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if (l2 != ~0u)
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{
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return l1 + l2;
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}
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}
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return ~0u;
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}
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uint32_t MatchOp::fixedLength ()
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{
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return 1;
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}
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uint32_t NullOp::fixedLength ()
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{
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return 0;
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}
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} // end namespace re2c
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