Skip to content
This repository

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Fetching contributors…

Octocat-spinner-32-eaf2f5

Cannot retrieve contributors at this time

file 50 lines (44 sloc) 1.142 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49
struct token_pos
{
    char *beg;
    char *end;
};
typedef struct token_pos token_pos_t;

#define dTOKENS(init_lim) \
token_pos_t token_buf[init_lim]; \
int token_lim = init_lim; \
token_pos_t *tokens = token_buf; \
int num_tokens = 0

#define PUSH_TOKEN(p_beg, p_end) \
STMT_START { \
++num_tokens; \
if (num_tokens == token_lim) \
tokens_grow(&tokens, &token_lim, (bool)(tokens != token_buf)); \
tokens[num_tokens-1].beg = p_beg; \
tokens[num_tokens-1].end = p_end; \
} STMT_END

#define FREE_TOKENS \
STMT_START { \
if (tokens != token_buf) \
Safefree(tokens); \
} STMT_END

static void
tokens_grow(token_pos_t **token_ptr, int *token_lim_ptr, bool tokens_on_heap)
{
    int new_lim = *token_lim_ptr;
    if (new_lim < 4)
new_lim = 4;
    new_lim *= 2;

    if (tokens_on_heap) {
Renew(*token_ptr, new_lim, token_pos_t);
    }
    else {
token_pos_t *new_tokens;
int i;
New(57, new_tokens, new_lim, token_pos_t);
for (i = 0; i < *token_lim_ptr; i++)
new_tokens[i] = (*token_ptr)[i];
*token_ptr = new_tokens;
    }
    *token_lim_ptr = new_lim;
}
Something went wrong with that request. Please try again.