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Diffstat (limited to 'doc/gawk.texi')
-rw-r--r-- | doc/gawk.texi | 43 |
1 files changed, 42 insertions, 1 deletions
diff --git a/doc/gawk.texi b/doc/gawk.texi index 55de34ca..78a21b85 100644 --- a/doc/gawk.texi +++ b/doc/gawk.texi @@ -35330,7 +35330,48 @@ the current version of @command{gawk}. Fortunately, at the possible expense of some compile-time warnings, the API remains source-code--compatible with the previous API. The major differences are the additional members in the @code{awk_ext_func_t} structure, and the -addition of the third argument to the C implementation function. +addition of the third argument to the C implementation function +(@pxref{Extension Functions}). + +Here is a list of individual features that changed from version 1 to +version 2 of the API: + +@itemize @bullet + +@item +Numeric values can now have MPFR/MPZ variants +(@pxref{General Data Types}). + +@item +There are new string types: @code{AWK_REGEX} and @code{AWK_STRNUM} +(@pxref{General Data Types}). + +@item +The @code{ezalloc()} macro is new +(@pxref{Memory Allocation Functions}). + +@item +The @code{awk_ext_func_t} structure changed. Instead of +@code{num_expected_args}, it now has @code{max_expected} and +@code{min_required} +(@pxref{Extension Functions}). + +@item +For @code{get_record()}, an input parser can now specify field widths +(@pxref{Input Parsers}). + +@item +Extensions can now produce nonfatal error messages +(@pxref{Printing Messages}). + +@item +When flattening an array, you can now specify the index and value types +(@pxref{Array Functions}). + +@item +The @code{get_file()} API is new +(@pxref{Redirection API}). +@end itemize @node Finding Extensions @section How @command{gawk} Finds Extensions |