From 29fdf68905dc8cbfc4f18e0cf508117a5839d2dc Mon Sep 17 00:00:00 2001
From: "John Ankarstr\\xf6m" <john@ankarstrom.se>
Date: Sun, 6 Jun 2021 11:08:43 +0200
Subject: Dynamically search include directories for header files

---
 dwim | 47 +++++++++++++++++++++++++++++------------------
 1 file changed, 29 insertions(+), 18 deletions(-)

diff --git a/dwim b/dwim
index 7d3afcd..a536abb 100755
--- a/dwim
+++ b/dwim
@@ -11,13 +11,15 @@ use subs qw/path env handle fail run arguments/;
 my ($phrase, %o) = arguments "usage: $0 parse\n", 1, d => 0;
 $phrase = `xsel -o` if not defined $phrase;
 
-my @OPENER       = split /\s/, env OPENER => "xterm -e";
-my @EDITOR         = split /\s/, env EDITOR => "vi";
-my @MAILER         = split /\s/, env MAILER => "mutt";
-my @BROWSER        = split /\s/, env BROWSER => "w3m -title";
-my @FILE_BROWSER   = split /\s/, env FILE_BROWSER => "noice";
-my @MAILDIR_VIEWER = split /\s/, env MAILDIR_VIEWER => "mutt -f";
-my $MAILROOT       = env MAILROOT => "/home/john/mail/";
+my @OPENER		= ("xtopen");
+my @EDITOR		= (@OPENER, "vi");
+my @PDF_VIEWER		= ("xpdf");
+my @MAN_VIEWER		= (@OPENER, "man");
+my @MAILER		= (@OPENER, "mutt");
+my @BROWSER		= (@OPENER, "w3m -title");
+my @FILE_BROWSER	= (@OPENER, "noice");
+my @MAILDIR_VIEWER	= (@OPENER, "mutt -f");
+my $MAILROOT		= env MAILROOT => "/home/john/mail/";
 
 our $handler;
 
@@ -35,39 +37,47 @@ for ($phrase) {
 	if (/^(.+?):(\d+).*?$/) {
 		handle "file:line (like grep -n)";
 		my $p = path $1;
-		run @OPENER, @EDITOR, "-c", ":$2", "$p"
+		run @EDITOR, "+$2", "$p"
 	}
 
 	if (/^(.+) line (\d+)\.?$/) {
 		handle "FILE line LINE (like perl)";
 		my $p = path $1;
-		run @OPENER, @EDITOR, "-c", ":$2", "$p"
+		run @EDITOR, "+$2", "$p"
 	}
 
 	if (/^(.+):(.+)$/) {
 		handle "file:query (like grep)";
 		my $p = path $1;
-		run @OPENER, @EDITOR, "-c", "/$2", "$p" if -e $p;
+		run @EDITOR, "+/$2", "$p" if -e $p;
 		fail "file not found" if $o{d};
 		# otherwise fall through
 	}
 
 	if (/^(\S+)\((\S+)\)[,.]?/) {
 		handle "manpage(section)";
-		run @OPENER, "man", $2, $1;
+		run @MAN_VIEWER, $2, $1;
 	}
 
 	if (/^(\S+)\.([1-9])/) {
 		handle "manpage.section";
 		my $p = path "$1.$2";
-		run @OPENER, "man", $p if -e $p;
-		run @OPENER, "man", $2, $1;
+		run @MAN_VIEWER, $p if -e $p;
+		run @MAN_VIEWER, $2, $1;
 	}
 
 	if (/^<(\S+)>$/) {
 		handle "<header.h>";
-		run @OPENER, @EDITOR, "/usr/include/$1" if -e "/usr/include/$1";
-		run @OPENER, @EDITOR, "/usr/local/include/$1" if -e "/usr/local/include/$1";
+		open my $h, 'find / -maxdepth 3 -type d -name include 2>&-|'
+			or fail "could not search include directories";
+		while (<$h>) {
+			chomp;
+			if (-e "$_/$1") {
+				close $h;
+				run @EDITOR, "$_/$1";
+			}
+		}
+		close $h;
 		fail "header file not found";
 	}
 
@@ -79,9 +89,10 @@ for ($phrase) {
 	if (/^(\S+)$/) {
 		handle "maildir / directory / file";
 		my $p = path $1;
-		run @OPENER, @MAILDIR_VIEWER, "$p" if $p =~ /^$MAILROOT/; # maildir
-		run @OPENER, @FILE_BROWSER, "$p" if -d $p; # directory
-		run @OPENER, @EDITOR, "$p" if -e $p; # file
+		run @MAILDIR_VIEWER, "$p" if $p =~ /^$MAILROOT/; # maildir
+		run @FILE_BROWSER, "$p" if -d $p; # directory
+		run @PDF_VIEWER, "$p" if -e $p and $p =~ /\.pdf$/; # pdf
+		run @EDITOR, "$p" if -e $p; # file
 		fail "file not found" if $o{d};
 		# otherwise fall through
 	}
-- 
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