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Finshed up the regex backend

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This commit is contained in:
Dan Hirsch 2013-04-26 20:36:54 -07:00
parent 204147a3d2
commit 13088c9d7a
39 changed files with 481 additions and 250 deletions
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14
src/parsers/whitespace.c
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@ -26,6 +26,16 @@ static bool ws_isValidCF(void *env) {
static bool ws_ctrvm(HRVMProg *prog, void *env) {
HParser *p = (HParser*)env;
uint16_t start = h_rvm_get_ip(prog);
uint16_t next;
const char SPACE_CHRS[6] = {' ', '\f', '\n', '\r', '\t', '\v'};
for (int i = 0; i < 6; i++) {
next = h_rvm_insert_insn(prog, RVM_FORK, 0);
h_rvm_insert_insn(prog, RVM_MATCH, (SPACE_CHRS[i] << 8) | (SPACE_CHRS[i]));
h_rvm_insert_insn(prog, RVM_GOTO, start);
h_rvm_patch_arg(prog, next, h_rvm_get_ip(prog));
}
return h_compile_regex(prog, p->env);
}
@ -36,10 +46,10 @@ static const HParserVtable whitespace_vt = {
.compile_to_rvm = ws_ctrvm,
};
const HParser* h_whitespace(const HParser* p) {
HParser* h_whitespace(const HParser* p) {
return h_whitespace__m(&system_allocator, p);
}
const HParser* h_whitespace__m(HAllocator* mm__, const HParser* p) {
HParser* h_whitespace__m(HAllocator* mm__, const HParser* p) {
HParser *ret = h_new(HParser, 1);
ret->vtable = &whitespace_vt;
ret->env = (void*)p;