com php-langspec: Improve check_refs: spec/07-variabl es.md tools/check_refs.php

Commit:    0fd1786650afcdd580d02a8cca535fdf4d33a27e=0AAuthor:    Nikita Pop=
ov <[email protected]>         Tue, 15 Nov 2016 22:38:27 +0100=0AParents:   883=
396eb050375ad973b25c1142bf015b5e3adb2=0ABranches:  master=0A=0ALink:       =
http://git.php.net/?p=3Dphp-langspec.git;a=3Dcommitdiff;h=3D0fd1786650afcdd=
580d02a8cca535fdf4d33a27e=0A=0ALog:=0AImprove check_refs=0A=0AHandle manual=
 anchor. Return exit code.=0A=0AChanged paths:=0A  M  spec/07-variables.md=
=0A  M  tools/check_refs.php=0A=0A=0ADiff:=0Adiff --git a/spec/07-variables=
.md b/spec/07-variables.md=0Aindex 6e59bf4..3fa4cb7 100644=0A--- a/spec/07-=
variables.md=0A+++ b/spec/07-variables.md=0A@@ -153,7 +153,7 @@ Since undef=
ined local variables are not defined implicitly, they stay undefined.=0A =
=0A *byRef Context*=0A =0A-If the undefined variable is used in a [byRef co=
ntext](04-basic-concepts#byRef) then PHP defines the variable implicitly. H=
ence, a VSlot is created for it and `NULL` is stored in it. A notice is *no=
t* emitted in such a case.=0A+If the undefined variable is used in a byRef =
context then PHP defines the variable implicitly. Hence, a VSlot is created=
 for it and `NULL` is stored in it. A notice is *not* emitted in such a cas=
e.=0A =0A *Examples of Undefined Variables*=0A =0Adiff --git a/tools/check_=
refs.php b/tools/check_refs.php=0Aindex eab817c..aede04a 100644=0A--- a/too=
ls/check_refs.php=0A+++ b/tools/check_refs.php=0A@@ -10,9 +10,18 @@ foreach=
 (spec_files() as $fileName =3D> $path) {=0A         $fullAnchor =3D $fileN=
ame . '#' . $info['anchor'];=0A         $anchors[$fullAnchor] =3D true;=0A =
    }=0A+=0A+    // Collect manual anchors as well=0A+    if (preg_match_al=
l('/<a name=3D"([^"]+)">/', $contents, $matches)) {=0A+        foreach ($ma=
tches[1] as $anchor) {=0A+            $fullAnchor =3D $fileName . '#' . $an=
chor;=0A+            $anchors[$fullAnchor] =3D true;=0A+        }=0A+    }=
=0A }=0A =0A // Find unknown anchor references=0A+$foundUnknown =3D false;=
=0A foreach (spec_files() as $fileName =3D> $path) {=0A     $contents =3D f=
ile_get_contents($path);=0A =0A@@ -33,7 +42,10 @@ foreach (spec_files() as =
$fileName =3D> $path) {=0A         }=0A =0A         if (!isset($anchors[$an=
chor])) {=0A+            $foundUnknown =3D true;=0A             echo "Unkno=
wn anchor $anchor in $fileName\n";=0A         }=0A     }=0A }=0A+=0A+exit($=
foundUnknown ? 1 : 0);=0A