diff options
Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/Zsh/expn.yo | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/Doc/Zsh/expn.yo b/Doc/Zsh/expn.yo index b3396721f..926e9b48b 100644 --- a/Doc/Zsh/expn.yo +++ b/Doc/Zsh/expn.yo @@ -1511,7 +1511,9 @@ Include the unmatched portion in the result (the em(R)est). enditem() subsect(Rules) - +cindex(parameter expansion rules) +cindex(rules, parameter expansion) +cindex(substitution, parameter, rules) Here is a summary of the rules for substitution; this assumes that braces are present around the substitution, i.e. tt(${)var(...)tt(}). Some particular examples are given below. Note that the Zsh Development Group accepts @@ -1709,6 +1711,7 @@ expression) and replaced with the corresponding value, with internal flags enditem() subsect(Examples) +cindex(parameter expansion, examples) The flag tt(f) is useful to split a double-quoted substitution line by line. For example, tt(${(f)"$LPAR()<)var(file)tt(RPAR()"}) substitutes the contents of var(file) divided so that each line is @@ -1890,7 +1893,6 @@ subsect(Dynamic named directories) cindex(directories, named, dynamic) cindex(named directories, dynamic) cindex(dynamic named directories) - If the function tt(zsh_directory_name) exists, or the shell variable tt(zsh_directory_name_functions) exists and contains an array of function names, then the functions are used to implement dynamic @@ -2016,7 +2018,7 @@ exists by that name, the word is replaced by the full pathname of the command. subsect(Notes) - +cindex(filename expansion, notes) Filename expansion is performed on the right hand side of a parameter assignment, including those appearing after commands of the tt(typeset) family. In this case, the right hand side will be treated @@ -2061,6 +2063,7 @@ No filename generation pattern matches the files `tt(.)' or `tt(..)'. In other instances of pattern matching, the `tt(/)' and `tt(.)' are not treated specially. subsect(Glob Operators) +cindex(glob operators) startitem() item(tt(*))( Matches any string, including the null string. @@ -2291,6 +2294,8 @@ within `tt([[)...tt(]])'), a `tt(/)' is not special; and `tt(/)' is also not special after a `tt(~)' appearing outside parentheses in a filename pattern. subsect(Globbing Flags) +cindex(globbing flags) +cindex(glob flags) There are various flags which affect any text to their right up to the end of the enclosing group or to the end of the pattern; they require the tt(EXTENDED_GLOB) option. All take the form @@ -2485,6 +2490,8 @@ searched for all files which match, so that a pattern of the form tt(LPAR()#i)tt(RPAR()/foo/bar/...) is potentially slow. subsect(Approximate Matching) +cindex(approximate matching) +cindex(matching, approximate) When matching approximately, the shell keeps a count of the errors found, which cannot exceed the number specified in the tt(LPAR()#a)var(num)tt(RPAR()) flags. Four types of error are recognised: @@ -2550,6 +2557,8 @@ approximate match. It is best to place the tt((#a1)) after any path segments which are known to be correct. subsect(Recursive Globbing) +cindex(recursive globbing) +cindex(globbing, recursive) A pathname component of the form `tt(LPAR())var(foo)tt(/RPAR()#)' matches a path consisting of zero or more directories matching the pattern var(foo). |