chickadee » srfi-135 » textual<?

textual<? textual1 textual2 textual3 ...procedure
textual>? textual1 textual2 textual3 ...procedure
textual<=? textual1 textual2 textual3 ...procedure
textual>=? textual1 textual2 textual3 ...procedure

These procedures compare their arguments lexicographically and return #t if they are (respectively): monotonically increasing, monotonically decreasing, monotonically non-decreasing, or monotonically non-increasing.

These comparison predicates are transitive.