basic extraction done. However, not sure why some of the regexes capture extra whitespace and strings. I tried setting it to be a pessimistic pony but it didn't work.

Author: mbartling

tools/bash_completion/generator.py

@@ -0,0 +1,42 @@
+#!/usr/bin/env python
+
+from collections import defaultdict
+import re
+import subprocess
+
+commandRegex = r"^\s+(?P<command>\w+)\s+(?P<helptxt>[a-zA-Z ]*)$"  # This one extracts single commands and the help txt
+# Why the hell do spaces get regexed in command1 ?
+subcommandRegex = r"^\s+(?P<command1>-+[a-zA-Z_\-]+(?P<modifier1>\s+[A-Z_\-]+){0,1})(?P<command2>,\s+-+[a-zA-Z_-]+(?P<modifier2>\s+[A-Z_-]+){0,1}){0,1}\s+(?P<helptxt>.*)$" # Gets just about everything
+
+def getHelpTxt(command=None):
+    if command:
+        p = subprocess.Popen(["mbed", command, "-h"], stdout=subprocess.PIPE)
+    else:
+        p = subprocess.Popen(["mbed", "-h"], stdout=subprocess.PIPE)
+    out, err = p.communicate()
+    return out
+
+if __name__ == '__main__':
+    #commands = defaultdict(defaultdict(list))
+    commands = defaultdict(defaultdict)
+    helpTxt = getHelpTxt()
+    #print helpTxt
+    for line in helpTxt.split('\n'):
+        match = re.search(commandRegex, line)
+        if match:
+            print "have match"
+            g = match.groupdict()
+            commands[g["command"]]["helptxt"] = g["helptxt"]
+            commands[g["command"]]["subcommands"] = []
+
+    for commandKey in commands:
+        command = commands[commandKey]
+        helpTxt = getHelpTxt(commandKey)
+        for line in helpTxt.split('\n'):
+            match = re.search(subcommandRegex, line)
+            if match:
+                print match.groupdict()
+        
+# At this point we have a list of all the commands and sub commands
+# for each command create a Bash function
+# register each subcommand