man support

--HG--
branch : pmacs2

method/shell.py

@@ -1,7 +1,7 @@
 import os, commands, re, sets, tempfile
 from subprocess import Popen, PIPE, STDOUT
 
-import buffer, default, dirutil, regex, util, window
+import buffer, default, dirutil, regex, term, util, window
 from point import Point
 
 from method import DATATYPES, Method, Argument
@@ -57,6 +57,32 @@ class Exec(Method):
         else:
             self._doit(w, None, vargs['cmd'])
 
+class Man(Exec):
+    '''Execute a command in a shell and put the output in a new buffer'''
+    args = [Argument('name', prompt="Program: ")]
+    def _execute(self, w, **vargs):
+        name   = vargs['name']
+        cmd    = 'man %r' % name
+        p      = Popen(cmd, shell=True, stdout=PIPE, stderr=STDOUT)
+        output = p.stdout.read()
+        result = p.wait()
+        status = os.WEXITSTATUS(result)
+        if not os.WIFEXITED(result):
+            err    = True
+            errmsg = "man: killed by signal %r" % os.WTERMSIG(result)
+        elif status != 0:
+            err    = True
+            errmsg = "man: failed with status %r" % status
+        else:
+            err    = False
+            errmsg = "man: ok"
+        if output:
+            xterm = term.XTerm()
+            output = xterm.filter(output)
+            switch_to = err or self.show_success
+            w.application.data_buffer('*Manpage*', output, switch_to=switch_to)
+        w.set_error(errmsg)
+
 class Pipe(Method):
     '''Pipe the buffer's contents through the command, and display the output in a new buffer'''
     args = [Argument('cmd', datatype="str", prompt="Command: ")]