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minor changes on user doc

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Jakukyo Friel 2011-02-20 02:58:11 +08:00
parent 2583638f4b
commit cde6067cae
1 changed files with 7 additions and 4 deletions
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11
doc_src/index.hdr.in
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@ -135,6 +135,10 @@ these characters, so called escape sequences are provided. These are:
- <code>'\\\<'</code>, escapes the less than character
- <code>'\\\>'</code>, escapes the more than character
- <code>'\\^'</code>, escapes the circumflex character
- <code>'\\&'</code>, escapes the ampersand character
- <code>'\\;'</code>, escapes the semicolon character
- <code>'\\"'</code>, escapes the quote character
- <code>'\\''</code>, escapes the apostrophe character
- <code>'\\x<i>xx</i>'</code>, where <code><i>xx</i></code> is a hexadecimal number, escapes the ascii character with the specified value. For example, \\x9 is the tab character.
- <code>'\\X<i>xx</i>'</code>, where <code><i>xx</i></code> is a hexadecimal number, escapes a byte of data with the specified value. If you are using a mutibyte encoding, this can be used to enter invalid strings. Only use this if you know what you are doing.
- <code>'\\<i>ooo</i>'</code>, where <code><i>ooo</i></code> is an octal number, escapes the ascii character with the specified value. For example, \\011 is the tab character.
@ -620,9 +624,8 @@ The {$USER}san syntax might need a bit of an elaboration. Posix
shells allow you to specify a variable name using '$VARNAME' or
'${VARNAME}'. Fish supports the former, and has no support whatsoever
for the latter or anything like it. So what is '{$VARNAME}' then?
Well, '{WHATEVER}' is <a href='#brace'>brace expansion</a>, identical
to that supported by e.g. bash. 'a{b,c}d' -> 'abd acd' works
both in bash and on fish. So '{$VARNAME}' is a bracket-expansion with
Well, '{WHATEVER}' is <a href='#brace'>brace expansion</a>, e.g. 'a{b,c}d' -> 'abd acd'.
So '{$VARNAME}' is a bracket-expansion with
only a single element, i.e. it becomes expanded to '$VARNAME', which
will be variable expanded to the value of the variable 'VARNAME'. So
you might think that the brackets don't actually do anything, and that
@ -684,7 +687,7 @@ The \% (percent) character at the beginning of a parameter followed by
a string is expanded into a process id. The following expansions are
performed:
- If the string is the entire word \c self, the shells pid is the result
- If the string is the entire word \c self, the shells pid is the result.
- Otherwise, if the string is the id of a job, the result is the process
group id of the job.
- Otherwise, if any child processes match the specified string, their