#ifndef __SCC_LEXER_UTILS_H__
#define __SCC_LEXER_UTILS_H__

#include "scc_lexer.h"

static inline cbool scc_lexer_peek_non_blank(scc_lexer_tok_ring_t *stream,
                                             scc_lexer_tok_t *out) {
    cbool ok;
    while (1) {
        scc_ring_peek(*stream, *out, ok);
        if (!ok || out->type != SCC_TOK_BLANK)
            break;
        scc_ring_next_consume(*stream, *out, ok);
        scc_lexer_tok_drop(out);
    }
    return ok;
}

static inline cbool scc_lexer_next_non_blank(scc_lexer_tok_ring_t *stream,
                                             scc_lexer_tok_t *out) {
    cbool ok;
    if (!scc_lexer_peek_non_blank(stream, out))
        return false;
    scc_ring_next_consume(*stream, *out, ok);
    return true;
}

static inline void scc_lexer_skip_until_newline(scc_lexer_tok_ring_t *stream) {
    scc_lexer_tok_t tok;
    cbool ok;
    while (1) {
        scc_ring_next_consume(*stream, tok, ok);
        if (!ok)
            break;
        scc_tok_type_t type = tok.type;
        scc_lexer_tok_drop(&tok);
        if (type == SCC_TOK_ENDLINE)
            break;
    }
}

#endif /* __SCC_LEXER_UTILS_H__ */