From 95f63f3ca271aac5dba22a45081848d0add9b7c4 Mon Sep 17 00:00:00 2001
From: moculus <none@none>
Date: Sun, 8 Jul 2007 23:46:59 +0000
Subject: [PATCH] added grep command

--HG--
branch : pmacs2
---
 method.py | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/method.py b/method.py
index b1f0427..dee18fc 100644
--- a/method.py
+++ b/method.py
@@ -1398,3 +1398,30 @@ class RegisterRestore(Method):
         if len(name) > self.MAX_REG:
             name = name[0:self.MAX_REG] + '...'
         w.set_error('Restored %r from register %r' % (text2, name2))
+
+class Grep(Method):
+    '''help here'''
+    args = [Argument('pattern', datatype="str", prompt="Pattern: ")]
+    def _execute(self, w, **vargs):
+        cmd = ("/usr/bin/grep", '-E', '-n', vargs['pattern'], '-')
+        pipe = popen2.Popen3(cmd, capturestderr=True)
+        pid = pipe.pid
+
+        indata = w.buffer.make_string()
+        pipe.tochild.write(indata)
+        pipe.tochild.close()
+
+        outdata = pipe.fromchild.read()
+        errdata = pipe.childerr.read()
+        status = pipe.wait() >> 8
+
+        if status == 0:
+            num = len(outdata.split('\n'))
+            w.application.data_buffer("*Grep*", outdata, switch_to=True)
+            w.application.set_error("Grep: %d matches found" % num)
+        elif status == 1:
+            w.application.set_error("Grep: no matches found")
+        else:
+            w.application.data_buffer("*Grep*", outdata, switch_to=True)
+            w.set_error("Grep: error (exited with status %d)" % status)
+    
\ No newline at end of file