- for (i = 0; i < (int)ssz; i++) {
- if (pos >= (int)ln->sz) {
- ln->sz += 256; /* Step-size. */
- ln->buf = realloc(ln->buf, ln->sz);
- if (NULL == ln->buf)
- err(1, "realloc");
- }
-
- if ('\n' != blk->buf[i]) {
- /*
- * Ugly of uglies. Here we handle the
- * dreaded `Xo/Xc' scoping. Cover the
- * eyes of any nearby children. This
- * makes `Xo/Xc' enclosures look like
- * one huge line.
- */
-#ifdef STRIP_XO
- /*
- * First, note whether we're in a macro
- * line.
- */
- if (0 == pos && '.' == blk->buf[i])
- macro = 1;
-
- /*
- * If we're in an `Xo' context and just
- * nixed a newline, remove the control
- * character for new macro lines:
- * they're going to show up as all part
- * of the same line.
- */
- if (xo && xeoln && '.' == blk->buf[i]) {
- xeoln = 0;
- continue;
- }
- xeoln = 0;
-
- /*
- * If we've parsed `Xo', enter an xo
- * context. `Xo' must be in a parsable
- * state. This is the ugly part. IT IS
- * NOT SMART ENOUGH TO HANDLE ESCAPED
- * WHITESPACE.
- */
- if (macro && pos && 'o' == blk->buf[i]) {
- if (xo && 'X' == ln->buf[pos - 1]) {
- if (' ' == ln->buf[pos - 2])
- xo++;
- } else if ('X' == ln->buf[pos - 1]) {
- if (2 == pos && '.' == ln->buf[pos - 2])
- xo++;
- else if (' ' == ln->buf[pos - 2])
- xo++;
- }
- }
-
- /*
- * If we're parsed `Xc', leave an xo
- * context if one's already pending.
- * `Xc' must be in a parsable state.
- * THIS IS NOT SMART ENOUGH TO HANDLE
- * ESCAPED WHITESPACE.
- */
- if (macro && pos && 'c' == blk->buf[i])
- if (xo && 'X' == ln->buf[pos - 1])
- if (' ' == ln->buf[pos - 2])
- xo--;
-#endif /* STRIP_XO */
-
- ln->buf[pos++] = blk->buf[i];
- continue;
- }
-
- /* Check for CPP-escaped newline. */
-
- if (pos > 0 && '\\' == ln->buf[pos - 1]) {
- for (j = pos - 1; j >= 0; j--)
- if ('\\' != ln->buf[j])
- break;
-
- if ( ! ((pos - j) % 2)) {
- pos--;
- lnn++;
- continue;
- }
- }
-
-#ifdef STRIP_XO
- /*
- * If we're in an xo context, put a space in
- * place of the newline and continue parsing.
- * Mark that we just did a newline.
- */
- if (xo) {
- xeoln = 1;
- ln->buf[pos++] = ' ';
- lnn++;
- continue;
- }
-#endif /* STRIP_XO */
-
- ln->buf[pos] = 0;
- if ( ! mdoc_parseln(mdoc, lnn, ln->buf))
- return(0);
- lnn++;
- macro = pos = 0;