diff options
Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/Zsh/builtins.yo | 55 |
1 files changed, 44 insertions, 11 deletions
diff --git a/Doc/Zsh/builtins.yo b/Doc/Zsh/builtins.yo index af336efa4..3a3130a95 100644 --- a/Doc/Zsh/builtins.yo +++ b/Doc/Zsh/builtins.yo @@ -147,20 +147,39 @@ ifnzman(noderef(Aliasing)). findex(autoload) cindex(functions, autoloading) cindex(autoloading functions) -item(tt(autoload) [ {tt(PLUS())|tt(-)}tt(TUXkmtz) ] [ tt(-w) ] [ var(name) ... ])( +item(tt(autoload) [ {tt(PLUS())|tt(-)}tt(RTUXdkmrtz) ] [ tt(-w) ] [ var(name) ... ])( vindex(fpath, searching) -Equivalent to tt(functions -u), with the exception of tt(-X)/tt(+X) and -tt(-w). See the section `Autoloading Functions' in ifzman(zmanref(zshmisc))\ +See the section `Autoloading Functions' in ifzman(zmanref(zshmisc))\ ifnzman(noderef(Functions)) for full details. The tt(fpath) parameter will be searched to find the function definition when the function is first referenced. -The flag tt(-X) may be used only inside a shell function, and may not be -followed by a var(name). It causes the calling function to be marked for -autoloading and then immediately loaded and executed, with the current -array of positional parameters as arguments. This replaces the previous -definition of the function. If no function definition is found, an error -is printed and the function remains undefined and marked for autoloading. +If var(name) consists of an absolute path, the function is defined to +load from the file given (searching as usual for dump files in the given +location). The name of the function is the basename (non-directory +part) of the file. It is normally an error if the function is not found +in the given location; however, if the option tt(-d) is given, searching +for the function defaults to tt($fpath). + +If the option tt(-r) or tt(-R) is given, the function is searched for +immediately and the location is recorded internally for use when the +function is executed; a relative path is expanded using the value of +tt($PWD). This protects against a change to tt($fpath) after the call +to tt(autoload). With tt(-r), if the function is not found, it is +silently left unresolved until execution; with tt(-R), an error message +is printed and command processing aborted immediately the search fails, +i.e. at the tt(autoload) command rather than at function execution.. + +The flag tt(-X) may be used only inside a shell function. It causes the +calling function to be marked for autoloading and then immediately +loaded and executed, with the current array of positional parameters as +arguments. This replaces the previous definition of the function. If +no function definition is found, an error is printed and the function +remains undefined and marked for autoloading. If an argument is given, +it is used as a directory (i.e. it does not include the name of the +function) in which the function is to be found; this may be combined +with the tt(-d) option to allow the function search to default to tt($fpath) +if it is not in the given location. The flag tt(+X) attempts to load each var(name) as an autoloaded function, but does em(not) execute it. The exit status is zero (success) if the @@ -176,6 +195,13 @@ If the tt(-m) flag is also given each var(name) is treated as a pattern and all functions already marked for autoload that match the pattern are loaded. +With the tt(-t) flag, turn on execution tracing; with tt(-T), turn on +execution tracing only for the current function, turning it off on entry +to any called functions that do not also have tracing enabled. + +With the tt(-U) flag, alias expansion is suppressed when the function is +loaded. + With the tt(-w) flag, the var(name)s are taken as names of files compiled with the tt(zcompile) builtin, and all functions defined in them are marked for autoloading. @@ -193,6 +219,10 @@ example(emulate zsh -c 'autoload -Uz var(func)') arranges that when var(func) is loaded the shell is in native tt(zsh) emulation, and this emulation is also applied when var(func) is run. + +Some of the functions of tt(autoload) are also provided by tt(functions +-u) or tt(functions -U), but tt(autoload) is a more comprehensive +interface. ) findex(bg) cindex(jobs, backgrounding) @@ -811,7 +841,8 @@ xitem(tt(functions -M) var(mathfn) [ var(min) [ var(max) [ var(shellfn) ] ] ]) xitem(tt(functions -M) [ tt(-m) var(pattern) ... ]) item(tt(functions +M) [ tt(-m) ] var(mathfn) ... )( Equivalent to tt(typeset -f), with the exception of the tt(-x) and -tt(-M) options. +tt(-M) options. For tt(functions -u) and tt(functions -U), see +tt(autoload), which provides additional options. The tt(-x) option indicates that any functions output will have each leading tab for indentation, added by the shell to show syntactic @@ -2034,7 +2065,9 @@ expansion to be suppressed when the function is loaded. See the description of the `tt(autoload)' builtin for details. Note that the builtin tt(functions) provides the same basic capabilities -as tt(typeset -f) but gives access to a few extra options. +as tt(typeset -f) but gives access to a few extra options; tt(autoload) +gives further additional options for the case tt(typeset -fu) and +tt(typeset -fU). ) item(tt(-h))( Hide: only useful for special parameters (those marked `<S>' in the table in |