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Got a lot of regex test cases working

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This commit is contained in:
Dan Hirsch 2013-05-23 23:26:22 +02:00
parent f37a13ef41
commit 0600440b7c
11 changed files with 148 additions and 14 deletions
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4
src/parsers/bits.c
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@ -97,6 +97,8 @@ static bool h_svm_action_bits(HArena *arena, HSVMContext *ctx, void* env) {
uint64_t res = 0;
for (size_t i = 0; i < top->bytes.len; i++)
res = (res << 8) | top->bytes.token[i]; // TODO: Handle other endiannesses.
uint64_t msb = (env_->signedp ? 1LL:0) << (top->bytes.len * 8 - 1);
res = (res ^ msb) - msb;
top->uint = res; // possibly cast to signed through union
top->token_type = (env_->signedp ? TT_SINT : TT_UINT);
return true;
@ -105,7 +107,7 @@ static bool h_svm_action_bits(HArena *arena, HSVMContext *ctx, void* env) {
static bool bits_ctrvm(HRVMProg *prog, void* env) {
struct bits_env *env_ = (struct bits_env*)env;
h_rvm_insert_insn(prog, RVM_PUSH, 0);
for (size_t i=0; (i < env_->length)/8; ++i) { // FUTURE: when we can handle non-byte-aligned, the env_->length/8 part will be different
for (size_t i=0; i < (env_->length/8); ++i) { // FUTURE: when we can handle non-byte-aligned, the env_->length/8 part will be different
h_rvm_insert_insn(prog, RVM_MATCH, 0xFF00);
h_rvm_insert_insn(prog, RVM_STEP, 0);
}