35 lines
940 B
C
35 lines
940 B
C
#include "parser_internal.h"
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static HParseResult* parse_ch(void* env, HParseState *state) {
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uint8_t c = (uint8_t)(unsigned long)(env);
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uint8_t r = (uint8_t)h_read_bits(&state->input_stream, 8, false);
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if (c == r) {
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HParsedToken *tok = a_new(HParsedToken, 1);
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tok->token_type = TT_UINT; tok->uint = r;
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return make_result(state, tok);
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} else {
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return NULL;
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}
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}
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static HCFChoice* desugar_ch(HAllocator *mm__, void *env) {
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HCFChoice *ret = h_new(HCFChoice, 1);
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ret->type = HCF_CHAR;
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ret->chr = (uint8_t)(unsigned long)(env);
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ret->action = NULL;
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return ret;
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}
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static const HParserVtable ch_vt = {
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.parse = parse_ch,
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.isValidRegular = h_true,
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.isValidCF = h_true,
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.desugar = desugar_ch,
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};
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const HParser* h_ch(const uint8_t c) {
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return h_ch__m(&system_allocator, c);
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}
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const HParser* h_ch__m(HAllocator* mm__, const uint8_t c) {
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return h_new_parser(mm__, &ch_vt, (void *)(uintptr_t)c);
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}
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