TIP #318 Version 1.2: Extend Default Whitespace in 'string trim' Beyond ASCII

This is not necessarily the current version of this TIP.

Abstract

This TIP extends the string trim, string trimleft, and string trimright subcommands to function properly with non-roman writing systems by adding non-ASCII space characters to the default list of characters to be trimmed.

Rationale

By default string trim and its single-sided variants remove ASCII whitespace characters. Some writing systems use other whitespace characters. Adding these characters to the default list will extend the Unicode-friendliness of Tcl.

The characters proposed to be added are:

U+1361  ETHIOPIC WORDSPACE       
U+1680  OGHAM SPACE MARK
U+3000  IDEOGRAPHIC SPACE

Copyright

This document has been placed in the public domain.

This is not necessarily the current version of this TIP.