/*
* Copy a row of tokens into the destination holder, allocating
* the space for the contents. Return the destination.
*/
Tokenrow *
copytokenrow(Tokenrow *dtr, Tokenrow *str)
{
int len = rowlen(str);
maketokenrow(len, dtr);
movetokenrow(dtr, str);
dtr->lp += len;
return dtr;
}
/*
* replace ntok tokens starting at dtr->tp with the contents of str.
* tp ends up pointing just beyond the replacement.
* Canonical whitespace is assured on each side.
*/
void
insertrow(Tokenrow * dtr, int ntok, Tokenrow * str)
{
int nrtok = (int)rowlen(str);
dtr->tp += ntok;
adjustrow(dtr, nrtok - ntok);
dtr->tp -= ntok;
movetokenrow(dtr, str);
dtr->tp += nrtok;
}