+struct termp_col {
+ int *buf; /* Output buffer. */
+ size_t maxcols; /* Allocated bytes in buf. */
+ size_t lastcol; /* Last byte in buf. */
+ size_t col; /* Byte in buf to be written. */
+ size_t rmargin; /* Current right margin. */
+ size_t offset; /* Current left margin. */
+};
+