Legend:
Page
Library
Module
Module type
Parameter
Class
Class type
Source
Page
Library
Module
Module type
Parameter
Class
Class type
Source
Qinap.Ext_string
SourceModule containing functions for working with strings.
hd s
returns the first character of the string s
. Wraps its result in an option type, to avoid raising exceptions.
tl s
returns s
with its first character removed. If applied to the empty string, tl
result the empty string.