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Diffstat (limited to 'Etc/FAQ.yo')
| -rw-r--r-- | Etc/FAQ.yo | 47 |
1 files changed, 44 insertions, 3 deletions
diff --git a/Etc/FAQ.yo b/Etc/FAQ.yo index 2dcde5261..618149259 100644 --- a/Etc/FAQ.yo +++ b/Etc/FAQ.yo @@ -43,14 +43,14 @@ whenlatex(report(ARG1)(ARG2)(ARG3))\ whenman(report(ARG1)(ARG2)(ARG3))\ whenms(report(ARG1)(ARG2)(ARG3))\ whensgml(report(ARG1)(ARG2)(ARG3))) -myreport(Z-Shell Frequently-Asked Questions)(Peter Stephenson)(2004/08/13) +myreport(Z-Shell Frequently-Asked Questions)(Peter Stephenson)(2005/01/11) COMMENT(-- the following are for Usenet and must appear first)\ description(\ mydit(Archive-Name:) unix-faq/shell/zsh -mydit(Last-Modified:) 2001/08/13 +mydit(Last-Modified:) 2005/01/11 mydit(Submitted-By:) email(pws@pwstephenson.fsnet.co.uk (Peter Stephenson)) mydit(Posting-Frequency:) Monthly -mydit(Copyright:) (C) P.W. Stephenson, 1995--2004 (see end of document) +mydit(Copyright:) (C) P.W. Stephenson, 1995--2005 (see end of document) ) This document contains a list of frequently-asked (or otherwise @@ -88,6 +88,7 @@ Chapter 2: How does zsh differ from...? 2.4. tcsh? 2.5. bash? 2.6. Shouldn't zsh be more/less like ksh/(t)csh? +2.7. What is zsh's support Unicode/UTF-8? Chapter 3: How to get various things to work 3.1. Why does `$var' where `var="foo bar"' not do what I expect? @@ -935,6 +936,46 @@ sect(Shouldn't zsh be more/less like ksh/(t)csh?) help. +sect(What is zsh's support for Unicode/UTF-8?) + + `Unicode', or UCS for Universal Character Set, is the modern way + of specifying character sets. It replaces a large number of ad hoc + ways of supporting character sets beyond ASCII. `UTF-8' is an + encoding of Unicode that is particularly natural on Unix-like systems. + + Q: Does zsh support UTF-8? + + A: zsh's built-in printf command supports "\u" and "\U" escapes + to output arbitrary Unicode characters. ZLE (the Zsh Line Editor) has + no concept of character encodings, and is confused by multi-octet + encodings. + + Q: Why doesn't zsh have proper UTF-8 support? + + A: The code has not been written yet. + + Q: What makes UTF-8 support difficult to implement? + + A: In order to handle arbitrary encodings the correct way, significant + and intrusive changes must be made to the shell. + + Q: Why can't zsh just use readline? + + A: ZLE is not encapsulated from the rest of the shell. Isolating it + such that it could be replaced by readline would be a significant + effort. Furthermore, using readline would effect a significant loss of + features. + + Q: What changes are planned? + + A: Introduction of Unicode support will be gradual, so if you are + interested in being involved you should join the zsh-workers mailing + list. As a first step ZLE will be rewritten to use wide characters + internally. Character based widgets can then operate on a single wide + character instead of a single byte, and the proper display width can be + calculated with wcswidth(). + + chapter(How to get various things to work) sect(Why does mytt($var) where mytt(var="foo bar") not do what I expect?) |