From: Simon Ruderich <simon@ruderich.org>
Date: Wed, 14 Mar 2012 01:06:16 +0000 (+0100)
Subject: Document linker command detection regex.
X-Git-Tag: 0.01~128
X-Git-Url: https://ruderich.org/simon/gitweb/?p=blhc%2Fblhc.git;a=commitdiff_plain;h=73f360f993232da0522e658a2059ea020dab2842

Document linker command detection regex.
---

diff --git a/bin/blhc b/bin/blhc
index 6f91074..9c3347c 100755
--- a/bin/blhc
+++ b/bin/blhc
@@ -275,7 +275,13 @@ foreach my $line (@input) {
     my $linker   = 0;
 
     # Linker commands.
-    if ($line =~ m{\s-o\s+(\\\s+)*([A-Za-z0-9_/.-]+/)?[A-Za-z0-9_-]+(\.so([0-9.])*|\.la)?(\s|\\|\$)}
+    if ($line =~ m{\s-o\s+               # -o
+                   (\\\s+)*              # possible line continuation
+                   ([A-Za-z0-9_/.-]+/)?  # path to file
+                   [A-Za-z0-9_-]+        # binary name (no dots!)
+                   (\.so([0-9.])*|\.la)? # library (including version)
+                   (\s|\\|\$)            # end of file name
+                  }x
             or $line =~ /^libtool: link: /
             or $line =~ m{\s*/bin/bash .+?libtool\s+(.+?\s+)?--mode=(re)?link}) {
         $compiler = 0;