diff options
Diffstat (limited to 'doc/gawk.1')
| -rw-r--r-- | doc/gawk.1 | 56 |
1 files changed, 55 insertions, 1 deletions
@@ -14,7 +14,7 @@ . if \w'\(rq' .ds rq "\(rq . \} .\} -.TH GAWK 1 "Aug 09 2012" "Free Software Foundation" "Utility Commands" +.TH GAWK 1 "Oct 02 2012" "Free Software Foundation" "Utility Commands" .SH NAME gawk \- pattern scanning and processing language .SH SYNOPSIS @@ -989,6 +989,12 @@ The input field separator, a space by default. See .BR Fields , above. .TP +.B FUNCTAB +An array whose indices are the names of all the user-defined +or extension functions in the program. +.BR NOTE : +The array values cannot currently be used. +.TP .B IGNORECASE Controls the case-sensitivity of all regular expression and string operations. If @@ -1108,6 +1114,35 @@ or \fB"FIELDWIDTHS"\fP if field splitting with .B FIELDWIDTHS is in effect. .TP +\fBPROCINFO["identifiers"]\fP +A subarray, indexed by the names of all identifiers used in the +text of the AWK program. For each identifier, the value of the element is one of the following: +.RS +.TP +\fB"array"\fR +The identifier is an array. +.TP +\fB"extension"\fR +The identifier is an extension function loaded via +.BR @load . +.TP +\fB"scalar"\fR +The identifier is a scalar. +.TP +\fB"untyped"\fR +The identifier is untyped (could be used as a scalar or array, +.I gawk +doesn't know yet). +.TP +\fB"user"\fR +The identifier is a user-defined function. +.RE +The values indicate what +.I gawk +knows about the identifiers after it has finished parsing the program; they are +.I not +updated while the program runs. +.TP \fBPROCINFO["gid"]\fP the value of the .IR getgid (2) @@ -1236,6 +1271,25 @@ The length of the string matched by The character used to separate multiple subscripts in array elements, by default \fB"\e034"\fR. .TP +.B SYMTAB +An array whose indices are the names of all currently defined +global variables and arrays in the program. The array may be used +for indirect access to read or write the value of a variable: +.PP +.RS +.ft B +foo = 5 +SYMTAB["foo"] = 4 +print foo # prints 4 +.ft R +.RE +.PP +The +.B isarray() +function may be used to test if an element in +.B SYMTAB +is an array. +.TP .B TEXTDOMAIN The text domain of the \*(AK program; used to find the localized translations for the program's strings. |