diff options
Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/Zsh/builtins.yo | 46 |
1 files changed, 23 insertions, 23 deletions
diff --git a/Doc/Zsh/builtins.yo b/Doc/Zsh/builtins.yo index cdf405b13..365f8e1e6 100644 --- a/Doc/Zsh/builtins.yo +++ b/Doc/Zsh/builtins.yo @@ -1763,18 +1763,31 @@ ifnzman(noderef(Local Parameters))\ retain their special attributes when made local. For each var(name)tt(=)var(value) assignment, the parameter -var(name) is set to var(value). All forms of the command -handle scalar assignment. +var(name) is set to var(value). -If any of the reserved words tt(declare), tt(export), tt(float), +If the shell option tt(TYPESET_SILENT) is not set, for each remaining +var(name) that refers to a parameter that is already set, the name and +value of the parameter are printed in the form of an assignment. +Nothing is printed for newly-created parameters, or when any attribute +flags listed below are given along with the var(name). Using +`tt(PLUS())' instead of minus to introduce an attribute turns it off. + +If no var(name) is present, the names and values of all parameters are +printed. In this case the attribute flags restrict the display to only +those parameters that have the specified attributes, and using `tt(PLUS())' +rather than `tt(-)' to introduce the flag suppresses printing of the values +of parameters when there is no parameter name. + +All forms of the command handle scalar assignment. Array assignment is +possible if any of the reserved words tt(declare), tt(export), tt(float), tt(integer), tt(local), tt(readonly) or tt(typeset) is matched when the -line is parsed (N.B. not when it is executed) the shell will try to parse -arguments as assignments, except that the `tt(+=)' syntax and the -tt(GLOB_ASSIGN) option are not supported. This has two major differences -from normal command line argument parsing: array assignment is possible, -and scalar values after tt(=) are not split further into words even if -expanded (regardless of the setting of the tt(KSH_TYPESET) option; this -option is obsolete). Here is an example: +line is parsed (N.B. not when it is executed). In this case the arguments +are parsed as assignments, except that the `tt(+=)' syntax and the +tt(GLOB_ASSIGN) option are not supported, and scalar values after tt(=) +are em(not) split further into words, even if expanded (regardless of the +setting of the tt(KSH_TYPESET) option; this option is obsolete). + +Examples of the differences between command and reserved word parsing: example(# Reserved word parsing typeset svar=$(echo one word) avar=(several words)) @@ -1843,19 +1856,6 @@ To initialize a parameter var(param) to a command output and mark it readonly, use tt(typeset -r )var(param) or tt(readonly )var(param) after the parameter assignment statement. -If the shell option tt(TYPESET_SILENT) is not set, for each remaining -var(name) that refers to a parameter that is already set, the name and -value of the parameter are printed in the form of an assignment. -Nothing is printed for newly-created parameters, or when any attribute -flags listed below are given along with the var(name). Using -`tt(PLUS())' instead of minus to introduce an attribute turns it off. - -If no var(name) is present, the names and values of all parameters are -printed. In this case the attribute flags restrict the display to only -those parameters that have the specified attributes, and using `tt(PLUS())' -rather than `tt(-)' to introduce the flag suppresses printing of the values -of parameters when there is no parameter name. - If no attribute flags are given, and either no var(name) arguments are present or the flag tt(+m) is used, then each parameter name printed is preceded by a list of the attributes of that parameter (tt(array), |