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51342: update PARAMDEF description

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Bart Schaefer 2023-01-31 17:45:42 -08:00
parent 88ccf2be1e
commit c8c894f83f
2 changed files with 9 additions and 4 deletions
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@ -1,5 +1,7 @@
2023-01-31 Bart Schaefer <schaefer@zsh.org>
* 51342: Etc/zsh-development-guide: update PARAMDEF description
* 51337: Doc/Zsh/expn.yo, Doc/Zsh/mod_parameter.yo: parameter
attributes cross-reference typeset equivalents (or lack thereof)

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Etc/zsh-development-guide
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@ -612,7 +612,7 @@ For defining parameters, a module can call `createparam()' directly or
use a table to describe them, e.g.:
static struct paramdef patab[] = {
PARAMDEF("foo", PM_INTEGER, NULL, get_foo, set_foo, unset_foo),
PARAMDEF("foo", PM_INTEGER, NULL, foo_gsu),
INTPARAMDEF("exint", &intparam),
STRPARAMDEF("exstr", &strparam),
ARRPARAMDEF("exarr", &arrparam),
@ -626,9 +626,9 @@ There are four macros used:
in zsh.h)
- optionally a pointer to a variable holding the value of the
parameter
- three functions that will be used to get the value of the
parameter, store a value in the parameter, and unset the
parameter
- a GSU pointer to the three functions that will be used to get
the value of the parameter, store a value in the parameter,
and unset the parameter
- the other macros provide simple ways to define the most common
types of parameters; they get the name of the parameter and a
pointer to a variable holding the value as arguments; they are
@ -636,6 +636,9 @@ There are four macros used:
variables whose addresses are given should be of type `long',
`char *', and `char **', respectively
GSU (get, set, unset) structures are defined in Src/zsh.h for each of
the parameter types scalar, integer, float, array, and hash.
For a description of how to write functions for getting or setting the
value of parameters, or how to write a function to unset a parameter,
see the description of the following functions in the `params.c' file: