/* Location. */
static int regnode(regex_t *preg, int op)
{
reg_grow(preg, 2);
preg->program[preg->p++] = op;
preg->program[preg->p++] = 0;
/* Return the start of the node */
return preg->p - 2;
}
/* Location. */
static int regnode(regex_t *preg, int op)
{
reg_grow(preg, 2);
/* The OP followed by a next pointer */
preg->program[preg->p++] = op;
preg->program[preg->p++] = 0;
/* Return the start of the node */
return preg->p - 2;
}
/*
- reginsert - insert an operator in front of already-emitted operand
*
* Means relocating the operand.
* Returns the new location of the original operand.
*/
static int reginsert(regex_t *preg, int op, int size, int opnd )
{
reg_grow(preg, size);
/* Move everything from opnd up */
memmove(preg->program + opnd + size, preg->program + opnd, sizeof(int) * (preg->p - opnd));
/* Zero out the new space */
memset(preg->program + opnd, 0, sizeof(int) * size);
preg->program[opnd] = op;
preg->p += size;
return opnd + size;
}
/*
- regc - emit (if appropriate) a byte of code
*/
static void regc(regex_t *preg, int b )
{
reg_grow(preg, 1);
preg->program[preg->p++] = b;
}
