+2012-12-01 Kevin Ryde <user42@zip.com.au>
+
+ * maintaining.texi (Tag Syntax): Mention Perl's "use constant".
+
2012-11-24 Paul Eggert <eggert@cs.ucla.edu>
* doclicense.texi, gpl.texi: Update to latest version from FSF.
@item
In Perl code, the tags are the packages, subroutines and variables
-defined by the @code{package}, @code{sub}, @code{my} and @code{local}
-keywords. Use @samp{--globals} if you want to tag global variables.
-Tags for subroutines are named @samp{@var{package}::@var{sub}}. The
-name for subroutines defined in the default package is
-@samp{main::@var{sub}}.
+defined by the @code{package}, @code{sub}, @code{use constant},
+@code{my}, and @code{local} keywords. Use @samp{--globals} if you
+want to tag global variables. Tags for subroutines are named
+@samp{@var{package}::@var{sub}}. The name for subroutines defined in
+the default package is @samp{main::@var{sub}}.
@item
In PHP code, tags are functions, classes and defines. Vars are tags
+2012-12-01 Kevin Ryde <user42@zip.com.au>
+
+ * etags.c (Perl_functions): Support "use constant" (Bug#5055).
+
2012-11-27 Paul Eggert <eggert@cs.ucla.edu>
Assume POSIX 1003.1-1988 or later for errno.h (Bug#12968).
/*
* Perl support
* Perl sub names: /^sub[ \t\n]+[^ \t\n{]+/
+ * /^use constant[ \t\n]+[^ \t\n{=,;]+/
* Perl variable names: /^(my|local).../
* Original code by Bart Robinson <lomew@cs.utah.edu> (1995)
* Additions by Michael Ernst <mernst@alum.mit.edu> (1997)
}
else if (LOOKING_AT (cp, "sub"))
{
- char *pos;
- char *sp = cp;
+ char *pos, *sp;
+ subr:
+ sp = cp;
while (!notinname (*cp))
cp++;
if (cp == sp)
lb.buffer, cp - lb.buffer + 1, lineno, linecharno);
free (name);
}
+ }
+ else if (LOOKING_AT (cp, "use constant")
+ || LOOKING_AT (cp, "use constant::defer"))
+ {
+ /* For hash style multi-constant like
+ use constant { FOO => 123,
+ BAR => 456 };
+ only the first FOO is picked up. Parsing across the value
+ expressions would be difficult in general, due to possible nested
+ hashes, here-documents, etc. */
+ if (*cp == '{')
+ cp = skip_spaces (cp+1);
+ goto subr;
}
- else if (globals) /* only if we are tagging global vars */
+ else if (globals) /* only if we are tagging global vars */
{
/* Skip a qualifier, if any. */
bool qual = LOOKING_AT (cp, "my") || LOOKING_AT (cp, "local");