Merge branch 'tokenizer-rewrite' into michitux

1 files changed, 22 insertions, 1 deletions

diff --git a/inc/io.php b/inc/io.php
index 1d69dabc9..a0be00da3 100644
--- a/inc/io.php
+++ b/inc/io.php
@@ -529,7 +529,7 @@ function io_rename($from,$to){
 
 
 /**
- * Runs an external command and returns it's output as string
+ * Runs an external command and returns its output as string
  *
  * @author Harry Brueckner <harry_b@eml.cc>
  * @author Andreas Gohr <andi@splitbrain.org>
@@ -547,6 +547,27 @@ function io_runcmd($cmd){
 }
 
 /**
+ * Runs an external command with input and output pipes.
+ * Returns the exit code from the process.
+ *
+ * @author Tom N Harris <tnharris@whoopdedo.org>
+ */
+function io_exec($cmd, $input, &$output){
+    $descspec = array(
+            0=>array("pipe","r"),
+            1=>array("pipe","w"),
+            2=>array("pipe","w"));
+    $ph = proc_open($cmd, $descspec, $pipes);
+    if(!$ph) return -1;
+    fclose($pipes[2]); // ignore stderr
+    fwrite($pipes[0], $input);
+    fclose($pipes[0]);
+    $output = stream_get_contents($pipes[1]);
+    fclose($pipes[1]);
+    return proc_close($ph);
+}
+
+/**
  * Search a file for matching lines
  *
  * This is probably not faster than file()+preg_grep() but less