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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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19
src/parsers/ignoreseq.c
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@ -1,3 +1,4 @@
#include <assert.h>
#include "parser_internal.h"
@ -49,14 +50,16 @@ static bool h_svm_action_ignoreseq(HArena *arena, HSVMContext *ctx, void* env) {
HParsedToken* save;
// We can assume that each subitem generated at most one item on the
// stack.
assert(seq->len >= 1);
for (int i = seq->len - 1; i>=0; i--) {
if (i == seq->which && ctx->stack[ctx->stack_count]->token_type != TT_MARK)
if (i == (int)seq->which && ctx->stack[ctx->stack_count]->token_type != TT_MARK)
save = ctx->stack[ctx->stack_count-1];
// skip over everything up to and including the mark.
while (ctx->stack[--ctx->stack_count]->token_type != TT_MARK)
;
}
ctx->stack[ctx->stack_count++] = save;
return true;
}
static bool is_ctrvm(HRVMProg *prog, void* env) {
@ -82,7 +85,7 @@ static const HParserVtable ignoreseq_vt = {
// API frontends
//
static const HParser* h_leftright__m(HAllocator* mm__, const HParser* p, const HParser* q, size_t which) {
static HParser* h_leftright__m(HAllocator* mm__, const HParser* p, const HParser* q, size_t which) {
HIgnoreSeq *seq = h_new(HIgnoreSeq, 1);
seq->parsers = h_new(const HParser*, 2);
seq->parsers[0] = p;
@ -96,25 +99,25 @@ static const HParser* h_leftright__m(HAllocator* mm__, const HParser* p, const H
return ret;
}
const HParser* h_left(const HParser* p, const HParser* q) {
HParser* h_left(const HParser* p, const HParser* q) {
return h_leftright__m(&system_allocator, p, q, 0);
}
const HParser* h_left__m(HAllocator* mm__, const HParser* p, const HParser* q) {
HParser* h_left__m(HAllocator* mm__, const HParser* p, const HParser* q) {
return h_leftright__m(mm__, p, q, 0);
}
const HParser* h_right(const HParser* p, const HParser* q) {
HParser* h_right(const HParser* p, const HParser* q) {
return h_leftright__m(&system_allocator, p, q, 1);
}
const HParser* h_right__m(HAllocator* mm__, const HParser* p, const HParser* q) {
HParser* h_right__m(HAllocator* mm__, const HParser* p, const HParser* q) {
return h_leftright__m(mm__, p, q, 1);
}
const HParser* h_middle(const HParser* p, const HParser* x, const HParser* q) {
HParser* h_middle(const HParser* p, const HParser* x, const HParser* q) {
return h_middle__m(&system_allocator, p, x, q);
}
const HParser* h_middle__m(HAllocator* mm__, const HParser* p, const HParser* x, const HParser* q) {
HParser* h_middle__m(HAllocator* mm__, const HParser* p, const HParser* x, const HParser* q) {
HIgnoreSeq *seq = h_new(HIgnoreSeq, 1);
seq->parsers = h_new(const HParser*, 3);
seq->parsers[0] = p;