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A python class for reading and writing orgmode files
branch: master

Merge pull request #21 from CodeMonk/master

Added reference to the OrgDataStructure when creating an OrgTodo.
latest commit 7c1a092e06
bjonnh authored

README.org

PyOrgMode

Tools

Tangle (Export the files)

Documentation

TODO LIST [0/9]

--- General
- [ ] Add a documentation system (finding a way for html and pdf export ?)
- [ ] Document every function correctly (docstrings)
- [ ] Add some examples
- [ ] Error/Warning managment
- [ ] Check for other OS compatibility
- [ ] TODO tags (and others)
- [ ] Add more types of data (List…) 

BUG LIST [0%]

ChangeLog

0.03a
- External changes
   Objects (Schedule, Clock, Drawer, Table, Node) are now called OrgSchedule, OrgClock, OrgDrawer, OrgTable, OrgNode to avoid conflicts
   OrgSchedule: Added the support for combo lines (SCHEDULED+DEADLINE+CLOSED)
   OrgClock: Now uses the new OrgDate class
   DataStructure is now called OrgDataStructure
- Internal changes
   Restructuration of the .org tangling-file (Document, Code and Tests sections for each kind of class)
   Restructuration of Plugin and Elements system (mainly to keep the indentation)
   OrgDate: A new class for managing date and times (and active/inactive time-date formats)
   Included the patch from KAIHOLA Antti about a wrong parenting bug
- Documentation
   Added some details about functions (a lot of work remains)
- Tests
   Added the test from KAIHOLA Antti for the parser
   Added the different test tools from KAIGOLA Antti (like test_simple-agenda updated to use unittest)
- Python compliance
   Added the minimal setup file of KAIHOLA Antti
0.02b
- External changes
   Added the patch from KAIHOLA Antti about time format.
0.02a
- External changes
   Added a Clock plugin in order to manage CLOCK: elements
      Thank to "siberianlaika" for the idea
   Added a TYPE attribute to the different OrgPlugins elements
      Maybe we should find a more practical way than this one
   Removed some debug "prints"
   Indentation problem that causes wrong reparenting
      Thanks to Matthew Robison for his patch
   Added a append_clean function to Node class
      This function is used to add a tree to a node
      A call to reparent_cleanlevels is done at the end
   Added reparent_cleanlevels to Node class
      This function reparent all the elements. Using a 
      content to parent way of doing. It checks the content
      of the first element (call it E), and set the parent of
      each E-childs to E. This is really useful when moving
      one tree to another place.
   Loading the default plugins in the Node class init.
      This avoids to do it in the load_from_file (which was a 
      bad idea).
   Added a new example 
      using the TYPE attribute and append_clean.
0.01j
- External changes
   Added load_plugin function to DataStructure
0.01i
- Internal changes
   Renamed Plugin class to OrgPlugin
   Added close function to plugins
   Adding Table cells subdivision (easier editing)
- PyOrgMode.org Structure change
   Added test.py in the document
0.01h
- Internal changes
   Added Plugin system (simplifying the main loop of DataStructure)
   The DataStructure class is now an OrgElement
- External changes
   Node,Table,Drawer and Schedule are now plugins.
    Their object method is now joined by PluginName.Element
- New elements
   Added Table element (as a Plugin)
0.01g
- Changed elements
   Node : Added priority management
0.01f
- New elements
   Added Schedule element for 'DEADLINE: and 'SCHEDULED:
- Optimizations
   Class DataStructure : Trying to simplify the Reg exps

Authors

Jonathan BISSON <firstname.lastname at bjonnh.net> : initiator of the project
Antti KAIHOLA <akaihol plus orgmode at ambitone dot com>
m3wolf
Will Roberts

Code

License

# -*- encoding: utf-8 -*-
##############################################################################
#
#    PyOrgMode, a python module for treating with orgfiles
#    Copyright (C) 2010 Jonathan BISSON (bissonjonathan on the google thing).
#    All Rights Reserved
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation, either version 3 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
##############################################################################

Setup

Code

from setuptools import setup

setup(
    name='PyOrgMode',
    version='0.03a',
    py_modules=['PyOrgMode'],
)

Imports

"""
The PyOrgMode class is able to read,modify and create orgfiles. The internal
representation of the file allows the use of orgfiles easily in your projects.
"""

import re
import string
import copy
import time

Class OrgDate

Documentation

TODO-LIST
--- Class OrgDate
- [ ] Must support locale (conversion for example)
- [ ] Must support empty initialisation
- [ ] Must use data validation
- [ ] Must support recurrent events (+1w …)

Code

class OrgDate:
    """Functions for date management"""

    format = 0
    TIMED = 1
    DATED = 2
    WEEKDAYED = 4
    ACTIVE = 8
    INACTIVE = 16
    RANGED = 32
    REPEAT = 64

    # TODO: Timestamp with repeater interval
    DICT_RE = {'start': '[[<]',
               'end':   '[]>]',
               'date':  '([0-9]{4})-([0-9]{2})-([0-9]{2})(\s+([\w]+))?',
               'time':  '([0-9]{2}):([0-9]{2})',
               'repeat': '[\+\.]{1,2}\d+[dwmy]'}

    def __init__(self,value=None):
        """
        Initialisation of an OrgDate element.
        """
        if value != None:
            self.set_value(value)

    def parse_datetime(self, s):
        """
        Parses an org-mode date time string.
        Returns (timed, weekdayed, time_struct, repeat).
        """
        search_re = '(?P<date>{date})(\s+(?P<time>{time}))?'.format(
            **self.DICT_RE)
        s = re.search(search_re, s)
        weekdayed = (len(s.group('date').split()) > 1)
        if s.group('time'):
            return (True,
                    weekdayed,
                    time.strptime(
                        s.group('date').split()[0] + ' ' + s.group('time'),
                        '%Y-%m-%d %H:%M'))
        else:
            return (False,
                    weekdayed,
                    time.strptime(s.group('date').split()[0], '%Y-%m-%d'))

    def set_value(self,value):
        """
        Setting the value of this element (automatic recognition of format)
        """
        # Checking whether it is an active date-time or not
        if value[0] == '<':
            self.format |= self.ACTIVE
        elif value[0] == '[':
            self.format |= self.INACTIVE

        # time range on a single day
        search_re = ('{start}(?P<date>{date})\s+(?P<time1>{time})'
                     '-(?P<time2>{time}){end}').format(**self.DICT_RE)
        match = re.search(search_re, value)
        if match:
            #timed, weekdayed, date = self.parse_datetime(match.group('date'))
            #self.value = time.strptime(match.group('time1').split()[0], '%H:%M')
            #self.value = time.struct_time(date[:3] + self.value[3:])
            timed, weekdayed, self.value = self.parse_datetime(
                match.group('date') + ' ' + match.group('time1'))
            if weekdayed:
                self.format |= self.WEEKDAYED
            timed, weekdayed, self.end = self.parse_datetime(
                match.group('date') + ' ' + match.group('time2'))
            #self.end = time.strptime(match.group('time2').split()[0], '%H:%M')
            #self.end = time.struct_time(date[:3] + self.end[3:])
            self.format |= self.TIMED | self.DATED | self.RANGED
            return
        # date range over several days
        search_re = ('{start}(?P<date1>{date}(\s+{time})?){end}--'
                     '{start}(?P<date2>{date}(\s+{time})?){end}').format(
            **self.DICT_RE)
        match = re.search(search_re, value)
        if match:
            timed, weekdayed, self.value = self.parse_datetime(
                match.group('date1'))
            if timed:
                self.format |= self.TIMED
            if weekdayed:
                self.format |= self.WEEKDAYED
            timed, weekdayed, self.end = self.parse_datetime(
                match.group('date2'))
            self.format |= self.DATED | self.RANGED
            return
        # single date with no range
        search_re = '{start}(?P<datetime>{date}(\s+{time})?)(\s+(?P<repeat>{repeat}))?{end}'.format(**self.DICT_RE)
        match = re.search(search_re, value)
        if match:
            timed, weekdayed, self.value = self.parse_datetime(
                match.group('datetime'))
            if match.group('repeat'):
                self.repeat = match.group('repeat')
                self.format |= self.REPEAT
            self.format |= self.DATED
            if timed:
                self.format |= self.TIMED
            if weekdayed:
                self.format |= self.WEEKDAYED
            self.end = None

    def get_value(self):
        """
        Get the timestamp as a text according to the format
        """
        fmt_dict = {'time': '%H:%M'}
        if self.format & self.ACTIVE:
            fmt_dict['start'], fmt_dict['end'] = '<', '>'
        else:
            fmt_dict['start'], fmt_dict['end'] = '[', ']'
        if self.format & self.WEEKDAYED:
            fmt_dict['date'] = '%Y-%m-%d %a'
        else:
            fmt_dict['date'] = '%Y-%m-%d'
        if self.format & self.RANGED:
            if self.value[:3] == self.end[:3]:
                # range is between two times on a single day
                assert self.format & self.TIMED
                return (time.strftime(
                    '{start}{date} {time}-'.format(**fmt_dict), self.value) +
                        time.strftime('{time}{end}'.format(**fmt_dict),
                                      self.end))
            else:
                # range is between two days
                if self.format & self.TIMED:
                    return (time.strftime(
                        '{start}{date} {time}{end}--'.format(**fmt_dict),
                        self.value) +
                            time.strftime(
                                '{start}{date} {time}{end}'.format(**fmt_dict),
                                self.end))
                else:
                    return (time.strftime(
                        '{start}{date}{end}--'.format(**fmt_dict), self.value) +
                            time.strftime(
                                '{start}{date}{end}'.format(**fmt_dict),
                                self.end))
        else: # non-ranged time
            # Repeated
            if self.format & self.REPEAT:
                fmt_dict['repeat'] = ' ' + self.repeat
            else:
                fmt_dict['repeat'] = ''
            if self.format & self.TIMED:
                return time.strftime(
                    '{start}{date} {time}{repeat}{end}'.format(**fmt_dict), self.value)
            else:
                return time.strftime(
                    '{start}{date}{repeat}{end}'.format(**fmt_dict), self.value)

Test

import PyOrgMode
import time
import unittest


class TestClockElement(unittest.TestCase):
    def test_duration_format(self):
        """Durations are formatted identically to org-mode"""

        for hour in '0', '1', '5', '10', '12', '13', '19', '23':
            for minute in '00', '01', '29', '40', '59':
                orig_str = '%s:%s' % (hour, minute)
                orgdate_element = PyOrgMode.OrgDate(orig_str)
                formatted_str = orgdate_element.get_value()
                self.assertEqual(formatted_str, orig_str)
  
if __name__ == '__main__':
    unittest.main()

Class OrgList

Documentation

TODO-LIST
--- Class OrgList
- [ ] Must be written

Class OrgProtocol

Documentation

TODO-LIST
--- Class OrgProtocol
- [ ] Must be written

Class OrgPlugin

Documentation

Code

class OrgPlugin:
    """
    Generic class for all plugins
    """
    def __init__(self):
        """ Generic initialization """
        self.treated = True
        self.keepindent = True # By default, the plugin system stores the indentation before the treatment
        self.keepindent_value = ""

    def treat(self,current,line):
        """ This is a wrapper function for _treat. Asks the plugin if he can manage this kind of line. Returns True if it can """
        self.treated = True
        if self.keepindent :
            self.keepindent_value = line[0:len(line)-len(line.lstrip(" \t"))] # Keep a trace of the indentation
            return self._treat(current,line.lstrip(" \t"))
        else:
            return self._treat(current,line)

    def _treat(self,current,line):
        """ This is the function used by the plugin for the management of the line. """
        self.treated = False
        return current

    def _append(self,current,element):
        """ Internal function that adds to current. """
        if self.keepindent and hasattr(element,"set_indent"):
            element.set_indent(self.keepindent_value)
        return current.append(element)

    def close(self,current):
        """ A wrapper function for closing the module. """
        self.treated = False
        return self._close(current)
    def _close(self,current):
        """ This is the function used by the plugin to close everything that have been opened. """
        self.treated = False
        return current

Class OrgElement

Documentation

Code

class OrgElement:
    """
    Generic class for all Elements excepted text and unrecognized ones
    """ 
    def __init__(self):
        self.content=[]
        self.parent=None
        self.level=0
        self.indent = ""

    def append(self,element):
        # TODO Check validity
        self.content.append(element)
        # Check if the element got a parent attribute
        # If so, we can have childrens into this element
        if hasattr(element,"parent"):
            element.parent = self
        return element

    def set_indent(self,indent):
        """ Transfer the indentation from plugin to element. """
        self.indent = indent

    def output(self):
        """ Wrapper for the text output. """
        return self.indent+self._output()
    def _output(self):
        """ This is the function really used by the plugin. """
        return ""

    def __str__(self):
        """ Used to return a text when called. """
        return self.output()  

Class OrgTodo

Documentation

Code

class OrgTodo():
    """Describes an individual TODO item for use in agendas and TODO lists"""
    def __init__(self, heading, todo_state,
                 scheduled=None, deadline=None,
                 tags=None, priority=None,
                 path=[0]
                 ):
        self.heading = heading
        self.todo_state = todo_state
        self.scheduled = scheduled
        self.deadline = deadline
        self.tags = tags
        self.priority = priority
    def __str__(self):
        string = self.todo_state + " " + self.heading
        return string

Class OrgClock

Documentation

Code

class OrgClock(OrgPlugin):
    """Plugin for Clock elements"""
    def __init__(self):
        OrgPlugin.__init__(self)
        self.regexp = re.compile("(?:\s*)CLOCK:(?:\s*)((?:<|\[).*(?:>||\]))--((?:<|\[).*(?:>||\])).*=>\s*(.*)")
    def _treat(self,current,line):
        clocked = self.regexp.findall(line)
        if clocked:
            self._append(current,self.Element(clocked[0][0], clocked[0][1], clocked[0][2]))
        else:
            self.treated = False
        return current
   
    class Element(OrgElement):
        """Clock is an element taking into account CLOCK elements"""
        TYPE = "CLOCK_ELEMENT"
        def __init__(self,start="",stop="",duration=""):
            OrgElement.__init__(self)
            self.start = OrgDate(start)
            self.stop = OrgDate(stop)
            self.duration = OrgDate(duration)
        def _output(self):
            """Outputs the Clock element in text format (e.g CLOCK: [2010-11-20 Sun 19:42]--[2010-11-20 Sun 20:14] =>  0:32)"""
            return "CLOCK: " + self.start.get_value() + "--"+ self.stop.get_value() + " =>  "+self.duration.get_value()+"\n"

Class OrgSchedule

Documentation

TODO-LIST
--- Class OrgSchedule

Code

class OrgSchedule(OrgPlugin):
    """Plugin for Schedule elements"""
    # TODO: Need to find a better way to do this
    def __init__(self):
        OrgPlugin.__init__(self)

        self.regexp_scheduled = re.compile("SCHEDULED: ((<|\[).*?(>|\])(--(<|\[).*?(>|\]))?)")
        self.regexp_deadline = re.compile("DEADLINE: ((<|\[).*?(>|\])(--(<|\[).*?(>|\]))?)")
        self.regexp_closed = re.compile("CLOSED: ((<|\[).*?(>|\])(--(<|\[).*?(>|\]))?)")
    def _treat(self,current,line):
        scheduled = self.regexp_scheduled.findall(line)
        deadline = self.regexp_deadline.findall(line)
        closed = self.regexp_closed.findall(line)
  
        if scheduled != []:
            scheduled = scheduled[0][0]
        if closed != []:
            closed = closed[0][0]
        if deadline != []:
            deadline = deadline[0][0]

        if scheduled or deadline or closed:
            self._append(current,self.Element(scheduled, deadline,closed))
        else:
            self.treated = False
        return current

    class Element(OrgElement):
        """Schedule is an element taking into account DEADLINE, SCHEDULED and CLOSED parameters of elements"""
        DEADLINE = 1
        SCHEDULED = 2
        CLOSED = 4
        TYPE = "SCHEDULE_ELEMENT"
        def __init__(self,scheduled=[],deadline=[],closed=[]):
            OrgElement.__init__(self)
            self.type = 0
  
            if scheduled != []:
                self.type = self.type | self.SCHEDULED
                self.scheduled = OrgDate(scheduled)
            if deadline != []:
                self.type = self.type | self.DEADLINE
                self.deadline = OrgDate(deadline)
            if closed  != []:
                self.type = self.type | self.CLOSED
                self.closed = OrgDate(closed)
  
        def _output(self):
            """Outputs the Schedule element in text format (e.g SCHEDULED: <2010-10-10 10:10>)"""
            output = ""
            if self.type & self.SCHEDULED:
                output = output + "SCHEDULED: "+self.scheduled.get_value()+" "
            if self.type & self.DEADLINE:
                output = output + "DEADLINE: "+self.deadline.get_value()+" "
            if self.type & self.CLOSED:
                output = output + "CLOSED: "+self.closed.get_value()+" "
            if output != "":
                output = output.rstrip() + "\n"
            return output

  

Class OrgDrawer

Documentation

Code

class OrgDrawer(OrgPlugin):
    """A Plugin for drawers"""
    def __init__(self):
        OrgPlugin.__init__(self)
        self.regexp = re.compile("^(?:\s*?)(?::)(\S.*?)(?::)\s*(.*?)$")
    def _treat(self,current,line):
        drawer = self.regexp.search(line)
        if isinstance(current, OrgDrawer.Element): # We are in a drawer
            if drawer:
                if drawer.group(1) == "END": # Ending drawer
                    current = current.parent
                elif drawer.group(2): # Adding a property
                    self._append(current,self.Property(drawer.group(1),drawer.group(2)))
            else: # Adding text in drawer
                self._append(current,line.rstrip("\n"))
        elif drawer: # Creating a drawer
            current = self._append(current,OrgDrawer.Element(drawer.group(1)))
        else:
            self.treated = False
            return current
        return current # It is a drawer, change the current also (even if not modified)
    
    class Element(OrgElement):
        """A Drawer object, containing properties and text"""
        TYPE = "DRAWER_ELEMENT"
        def __init__(self,name=""):
            OrgElement.__init__(self)
            self.name = name
        def _output(self):
            output = ":" + self.name + ":\n"
            for element in self.content:
                output = output + str(element) + "\n"
            output = output + self.indent + ":END:\n"
            return output
    class Property(OrgElement):
        """A Property object, used in drawers."""
        def __init__(self,name="",value=""):
            OrgElement.__init__(self)
            self.name = name
            self.value = value
        def _output(self):
            """Outputs the property in text format (e.g. :name: value)"""
            return ":" + self.name + ": " + self.value

Class OrgTable

Documentation

TODO-LIST
--- Class OrgTable
- [ ] Table edition (must add separators, cell length, length calculator…)

Code

class OrgTable(OrgPlugin):
    """A plugin for table managment"""
    def __init__(self):
        OrgPlugin.__init__(self)
        self.regexp = re.compile("^\s*\|")
    def _treat(self,current,line):
        table = self.regexp.match(line)
        if table:
            if not isinstance(current,self.Element):
                current = current.append(self.Element())
            current.append(line.rstrip().strip("|").split("|"))
        else:
            if isinstance(current,self.Element):
                current = current.parent
            self.treated = False
        return current

    class Element(OrgElement):
        """
        A Table object
        """
        TYPE = "TABLE_ELEMENT"
        def __init__(self):
            OrgElement.__init__(self)
        def _output(self):
            output = ""
            for element in self.content:
                output = output + "|"
                for cell in element:
                    output = output + str(cell) + "|"
                output = output + "\n"
            return output
        

Class OrgNode

Documentation

TODO-LIST
--- Class OrgNode
- [ ] Add the intra-header scheduling

Code

class OrgNode(OrgPlugin):
    def __init__(self):
        OrgPlugin.__init__(self)
        self.todo_list = ['TODO']
        self.done_list = ['DONE']
        self.keepindent = False # If the line starts by an indent, it is not a node
    def _treat(self,current,line):
        # Build regexp
        regexp_string = "^(\*+)\s*"
        if self.todo_list:
            separator = ""
            re_todos = "("
            for todo_keyword in self.todo_list + self.done_list:
                re_todos += separator
                separator = "|"
                re_todos += todo_keyword
            re_todos += ")?\s*"
            regexp_string += re_todos
        regexp_string += "(\[.*\])?\s*(.*)$"
        self.regexp = re.compile(regexp_string)
        heading = self.regexp.findall(line)
        if heading: # We have a heading

            if current.parent :
                current.parent.append(current)
  
                  # Is that a new level ?
            if (len(heading[0][0]) > current.level): # Yes
                parent = current # Parent is now the current node
            else:
                parent = current.parent # If not, the parent of the current node is the parent
                # If we are going back one or more levels, walk through parents
                while len(heading[0][0]) < current.level:
                    current = current.parent
                    parent = current.parent
            # Creating a new node and assigning parameters
            current = OrgNode.Element() 
            current.level = len(heading[0][0])
            current.heading = re.sub(":([\w]+):","",heading[0][3]) # Remove tags
            current.priority = heading[0][2].strip('[#]')
            current.parent = parent
            if heading[0][1]:
                current.todo = heading[0][1]
      
            # Looking for tags
            heading_without_links = re.sub(" \[(.+)\]","",heading[0][3])
            current.tags = re.findall(":([\w]+):",heading_without_links)
        else:
            self.treated = False
        return current
    def _close(self,current):
        # Add the last node
        if current.level>0:
            current.parent.append(current)

    class Element(OrgElement):
        # Defines an OrgMode Node in a structure
        # The ID is auto-generated using uuid.
        # The level 0 is the document itself
        TYPE = "NODE_ELEMENT"    
        def __init__(self):
            OrgElement.__init__(self)
            self.content = []       
            self.level = 0
            self.heading = ""
            self.priority = ""
            self.tags = []
          # TODO  Scheduling structure
  
        def _output(self):
            output = ""
            
            if hasattr(self,"level"):
                output = output + "*"*self.level

            if hasattr(self, "todo"):
                output = output + " " + self.todo

            if self.parent is not None:
                output = output + " "
                if self.priority:
                    output = output + "[#" + self.priority + "] "
                output = output + self.heading
  
                for tag in self.tags:
                    output= output + ":" + tag + ":"
  
                output = output + "\n"
    
            for element in self.content:
                output = output + element.__str__()
  
            return output
        def append_clean(self,element):
            if isinstance(element,list):
                self.content.extend(element)
            else:
                self.content.append(element)
            self.reparent_cleanlevels(self)
        def reparent_cleanlevels(self,element=None,level=None):
            """
            Reparent the childs elements of 'element' and make levels simpler.
            Useful after moving one tree to another place or another file.
            """
            if element == None:
                element = self.root
            if hasattr(element,"level"):
                if level == None:
                    level = element.level
                else:
                    element.level = level

            if hasattr(element,"content"):
                for child in element.content:
                    if hasattr(child,"parent"):
                        child.parent = element
                        self.reparent_cleanlevels(child,level+1)    

Class OrgDataStructure

Documentation

Code

class OrgDataStructure(OrgElement):
    """
    Data structure containing all the nodes
    The root property contains a reference to the level 0 node
    """
    root = None
    TYPE = "DATASTRUCTURE_ELEMENT"
    def __init__(self):
        OrgElement.__init__(self)
        self.plugins = []
        self.load_plugins(OrgTable(),OrgDrawer(),OrgNode(),OrgSchedule(),OrgClock())
        # Add a root element
        # The root node is a special node (no parent) used as a container for the file
        self.root = OrgNode.Element()
        self.root.parent = None
        self.level = 0

    def load_plugins(self,*arguments,**keywords):
        """
        Used to load plugins inside this DataStructure
        """
        for plugin in arguments:
            self.plugins.append(plugin)
    def set_todo_states(self,new_states):
        """
        Used to override the default list of todo states for any 
        OrgNode plugins in this object's plugins list. Expects 
        a list[] of strings as its argument. The list can be split
        by '|' entries into TODO items and DONE items. Anything after
        a second '|' will not be processed and be returned.
        Setting to an empty list will disable TODO checking.
        """
        new_todo_states = []
        new_done_states = []
        num_lists = 1
        # Process the first part of the list (delimited by '|')
        for new_state in new_states:
            if new_state == '|':
                num_lists += 1
                break
            new_todo_states.append(new_state)
        # Clean up the lists so far
        if num_lists > 1:
            new_states.remove('|')
        for todo_state in new_todo_states:
            new_states.remove(todo_state)
        # Process the second part of the list (delimited by '|')
        for new_state in new_states:
            if new_state == '|':
                num_lists += 1
                break
            new_done_states.append(new_state)
        # Clean up the second list
        if num_lists > 2:
            new_states.remove('|')
        for todo_state in new_done_states:
            new_states.remove(todo_state)
        # Write the relevant attributes
        for plugin in self.plugins:
            if plugin.__class__ == OrgNode:
                plugin.todo_list = new_todo_states
                plugin.done_list = new_done_states
        if new_states:
            return new_states # Return any leftovers  
    def get_todo_states(self, list_type="todo"):
        """
        Returns a list of todo states. An empty list means that
        instance of OrgNode has TODO checking disabled. The first argument
        determines the list that is pulled ("todo"*, "done" or "all").
        """
        all_states = []
        for plugin in self.plugins:
            if plugin.__class__ == OrgNode:
                if plugin.todo_list and (list_type == "todo" or list_type == "all"):
                    all_states += plugin.todo_list
                if plugin.done_list and (list_type == "done" or list_type == "all"):
                    all_states += plugin.done_list
        return list(set(all_states))
    def add_todo_state(self, new_state):
        """
        Appends a todo state to the list of todo states of any OrgNode 
        plugins in this objects plugins list.
        Expects a string as its argument.
        """
        for plugin in self.plugins:
            if plugin.__class__ == OrgNode:
                plugin.todo_list.append(new_state)
    def add_done_state(self, new_state):
        """
        Appends a todo state to the list of todo states of any OrgNode 
        plugins in this objects plugins list.
        Expects a string as its argument.
        """
        for plugin in self.plugins:
            if plugin.__class__ == OrgNode:
                plugin.done_list.append(new_state)
    def remove_todo_state(self, old_state):
        """
        Remove a given todo state from both the todo list and the done list.
        Returns True if the plugin was actually found.
        """
        found = False
        for plugin in self.plugins:
            if plugin.__class__ == OrgNode:
                while old_state in plugin.todo_list:
                    found = True
                    plugin.todo_list.remove(old_state)
                while old_state in plugin.done_list:
                    found = True
                    plugin.done_list.remove(old_state)
        return found
    def extract_todo_list(self, todo_list=None):
        """
        Extract a list of headings with TODO states specified by the first argument.
        """
        if todo_list == None: # Set default
            # Kludge to get around lack of self in function declarations
            todo_list = self.get_todo_states()
        else:
            # Check to make sure all todo_list items are registered
            # with the OrgNode plugin
            for possible_state in todo_list:
                if possible_state not in self.get_todo_states("all"):
                    raise ValueError("State " + possible_state + " not registered. See PyOrgMode.OrgDataStructure.add_todo_state.")
        results_list = []
        # Recursive function that steps through each node in current level,
        # looking for TODO items and then calls itself to look for 
        # TODO items one level down.
        def extract_from_level(content):
            for node in content:
                # Check if it's a TODO item and add to results
                try:
                    current_todo = node.todo
                except AttributeError:
                    pass
                else: # Handle it
                    if current_todo in todo_list:
                        new_todo = OrgTodo(node.heading, node.todo)
                        results_list.append(new_todo)
                # Now check if it has sub-headings
                try:
                    next_content = node.content
                except AttributeError:
                    pass
                else: # Hanble it
                    extract_from_level(next_content)
        extract_from_level(self.root.content)
        return results_list
    def load_from_file(self,name,form="file"):
        """
        Used to load an org-file inside this DataStructure
        """
        current = self.root
        # Determine content type and put in appropriate form
        if form == "file":
            content = open(name,'r')
        elif form == "string":
            content = name.split("\n")
        else:
            raise ValueError("Form \""+form+"\" not recognized")

        for line in content:
            for plugin in self.plugins:
                current = plugin.treat(current,line)
                if plugin.treated: # Plugin found something
                    treated = True
                    break;
                else:
                    treated = False
            if not treated and line is not None: # Nothing special, just content
                current.append(line)

        for plugin in self.plugins:
            current = plugin.close(current)
    def load_from_string(self, string):
        """
        A wrapper calling load_from_file but with a string instead of reading from a file.
        """
        self.load_from_file(string, "string")

    def save_to_file(self,name,node=None):
        """
        Used to save an org-file corresponding to this DataStructure
        """
        output = open(name,'w')
        if node == None:
            node = self.root
        output.write(str(node))
        output.close()

Test

import PyOrgMode
import tempfile
import unittest


class TestParser(unittest.TestCase):
    """Test the org file parser with a simple org structure"""

    def setUp(self):
        """Parse the org structure from a temporary file"""
        orgfile = tempfile.NamedTemporaryFile()
        orgfile.write('\n'.join((
            '* one',
            '* two',
            '** two point one',
            '* three',
            '')).encode('UTF-8'))
        orgfile.flush()
        self.tree = PyOrgMode.OrgDataStructure()
        try:
            self.tree.load_from_file(orgfile.name)
        finally:
            orgfile.close()

    def test_has_three_top_level_headings(self):
        """The example has three top-level headings"""
        self.assertEqual(len(self.tree.root.content), 3)

    def test_second_item_has_a_subheading(self):
        """The second top-level heading has one subheading"""
        self.assertEqual(len(self.tree.root.content[1].content), 1)


if __name__ == '__main__':
    unittest.main()

Tests

Take test.org, outputs output.org

"""Tests for parsing and outputting a simple .org test file
 
 You need the fr_FR.UTF-8 locale to run these tests
 """
 
import locale
import PyOrgMode
try:
    import unittest2 as unittest
except ImportError:
    import unittest
 
 
def _normalize_ignored(line):
    """Normalize a line to ignore differences which aren't yet handled"""
    line = line.replace(':ORDERED:  t', ':ORDERED: t')
    return line


class TestExampleOrgFile(unittest.TestCase):
    def test_test_org(self):
        test = PyOrgMode.OrgDataStructure()
        test.load_from_file("test.org")
        locale.setlocale(locale.LC_ALL, 'fr_FR.UTF-8')
        test.save_to_file("output.org")
        original = [_normalize_ignored(line) for line in open("test.org")]
        saved = [_normalize_ignored(line) for line in open("output.org")]
        self.assertEqual(saved, original)

if __name__ == '__main__':
    unittest.main()

Read all the DEADLINE and SCHEDULED elements and put them in a file alone

import PyOrgMode
import copy
try:
    import unittest2 as unittest
except ImportError:
    import unittest


def Get_Scheduled_Elements(element, data=[]):
    """
    Grab the data from all scheduled elements for all the tree defined by 'element' recursively.
    Returns all the elements as an array.
    """
    if hasattr(element,"content"):
        for child in element.content:
            if hasattr(child,"TYPE"):
                if child.TYPE == "SCHEDULE_ELEMENT":
                    # This element is scheduled, we are creating a copy of it
                    data.append(copy.deepcopy(child.parent))
            Get_Scheduled_Elements(child,data)
    return data


class TestAgenda(unittest.TestCase):
    def test_agenda(self):
        # Creating the input and output files data structures
        input_file = PyOrgMode.OrgDataStructure()
        output_file = PyOrgMode.OrgDataStructure()

        # Loading from agenda.org file
        input_file.load_from_file("agenda.org")

        # Get the scheduled elements (those with SCHEDULE, DEADLINE in them, not in the node name)
        scheduled_elements = Get_Scheduled_Elements(input_file.root)

        # Assign these element to the root (reparent each elements recursively, relevel them cleanly)
        output_file.root.append_clean(scheduled_elements)

        output_file.save_to_file("test_scheduled_output.org")

        saved = open("test_scheduled_output.org").readlines()
        self.assertEqual(saved, ['* Element 1\n',
                                 '   SCHEDULED: <2011-02-08>\n',
                                 '* Element 3\n',
                                 '   DEADLINE: <2011-02-08>\n',
                                 '** Test\n',
                                 '** Element 4\n',
                                 '   SCHEDULED: <2011-02-08>\n',
                                 '*** Couic\n',
                                 '* Element 4\n',
                                 '   SCHEDULED: <2011-02-08>\n',
                                 '** Couic\n'])


if __name__ == '__main__':
    unittest.main()

Date and time formatting


import PyOrgMode
import unittest


class TestDates(unittest.TestCase):
    """Test the org file parser with several date formats"""

    def test_baredate(self):
        """
        Tests parsing dates without time.
        """
        datestr = '<2013-11-20 Wed>'
        date = PyOrgMode.OrgDate(datestr)
        self.assertEqual(tuple(date.value), (2013, 11, 20, 0, 0, 0, 2, 324, -1))
        self.assertEqual(date.get_value(), datestr)

    def test_datetime(self):
        """
        Tests parsing dates with time.
        """
        datestr = '<2011-12-12 Mon 09:00>'
        date = PyOrgMode.OrgDate(datestr)
        self.assertEqual(tuple(date.value), (2011, 12, 12, 9, 0, 0, 0, 346, -1))
        self.assertEqual(date.get_value(), datestr)

    def test_datenoweekday(self):
        """
        Tests parsing simple dates without weekdays.
        """
        datestr = '<2013-11-20>'
        date = PyOrgMode.OrgDate(datestr)
        self.assertEqual(tuple(date.value), (2013, 11, 20, 0, 0, 0, 2, 324, -1))
        self.assertEqual(date.get_value(), datestr)

    def test_timerange(self):
        """
        Tests parsing time ranges on the same day.
        """
        datestr = '<2012-06-28 Thu 12:00-13:00>'
        date = PyOrgMode.OrgDate(datestr)
        self.assertEqual(tuple(date.value), (2012, 6, 28, 12, 0, 0, 3, 180, -1))
        self.assertEqual(tuple(date.end), (2012, 6, 28, 13, 0, 0, 3, 180, -1))
        self.assertEqual(date.get_value(), datestr)

    def test_daterange(self):
        """
        Tests parsing date ranges.
        """
        datestr = '<2012-07-20 Fri>--<2012-07-31 Tue>'
        date = PyOrgMode.OrgDate(datestr)
        self.assertEqual(tuple(date.value), (2012, 7, 20, 0, 0, 0, 4, 202, -1))
        self.assertEqual(tuple(date.end), (2012, 7, 31, 0, 0, 0, 1, 213, -1))
        self.assertEqual(date.get_value(), datestr)

    def test_daterangewithtimes(self):
        """
        Tests parsing date ranges with times.
        """
        datestr = '<2012-07-20 Fri 09:00>--<2012-07-31 Tue 14:00>'
        date = PyOrgMode.OrgDate(datestr)
        self.assertEqual(tuple(date.value), (2012, 7, 20, 9, 0, 0, 4, 202, -1))
        self.assertEqual(tuple(date.end), (2012, 7, 31, 14, 0, 0, 1, 213, -1))
        self.assertEqual(date.get_value(), datestr)

if __name__ == '__main__':
    unittest.main()

RegExLab

This part is used for internal testing. It allows you to test some piece of code inside your org document.

Just use C-c C-c to execute this code
import re
test_regexp = re.compile("")
result = test_regexp.findall("")
return(result)
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