Fix parser stumbling over "0" in names

PHPs type juggling strikes again :(

5 files changed, 32 insertions, 1 deletions

diff --git a/src/ste/Parser.php b/src/ste/Parser.php
index 5e5ef0a..7226c60 100644
--- a/src/ste/Parser.php
+++ b/src/ste/Parser.php
@@ -89,7 +89,7 @@ class Parser {
 
     private function take_while($cb) {
         $s = "";
-        while($c = $this->next()) {
+        while(($c = $this->next()) !== "") {
             if(!call_user_func($cb, $c)) {
                 $this->back();
                 return $s;
diff --git a/tests/test_tagname/.gitignore b/tests/test_tagname/.gitignore
new file mode 100644
index 0000000..de2a41b
--- /dev/null
+++ b/tests/test_tagname/.gitignore
@@ -0,0 +1,3 @@
+have
+*.ast
+*.transc.php
diff --git a/tests/test_tagname/code.php b/tests/test_tagname/code.php
new file mode 100644
index 0000000..6001358
--- /dev/null
+++ b/tests/test_tagname/code.php
@@ -0,0 +1,20 @@
+<?php
+
+use kch42\ste\STECore;
+
+function test_func(STECore $ste) {
+    $names = array(
+        "foo",
+        "ab_cd",
+        "foo123baz",
+        "x0123",
+    );
+
+    foreach ($names as $name) {
+        $ste->register_tag(
+            $name,
+            function ($ste, $params, $sub) use ($name) { return $name; }
+        );
+    }
+
+}
diff --git a/tests/test_tagname/test.tpl b/tests/test_tagname/test.tpl
new file mode 100644
index 0000000..30ca889
--- /dev/null
+++ b/tests/test_tagname/test.tpl
@@ -0,0 +1,4 @@
+<ste:foo />
+<ste:ab_cd />
+<ste:foo123baz />
+<ste:x0123 />
\ No newline at end of file
diff --git a/tests/test_tagname/want b/tests/test_tagname/want
new file mode 100644
index 0000000..3233294
--- /dev/null
+++ b/tests/test_tagname/want
@@ -0,0 +1,4 @@
+foo
+ab_cd
+foo123baz
+x0123