Micro release

Fix and close #14 and #15
Merge PR#13 and PR#16

README.markdown

@@ -28,19 +28,26 @@
 
 ## Release notes
 
-v0.7.5 Incorporates [Fievel's work](https://github.com/fievel/todo.txt-vim/commit/0863e1434e9a89ace06c4856b6cb32ba9906e3de) to make overduedates work on python3. I have no version of vim with python3 thus it is only tested on his side, do not hesitate to report issues.
++   V0.8.1 Incorporates yet antoher Fretep work : highlithing for tasks due today.
 
-v0.7.4 includes the overduedate support from Guilherme Victal (see pull
-[request #45 on freitass version](https://github.com/freitass/todo.txt-vim/pull/45)),
-it highlight dates in overdue tasks as an Error. It depends on a
-Python library, however, and as such will only be able to work if your version
-of Vim was compiled with the `+python` option (as most common versions do).
++   v0.8 Incorporates Fretep's work on overdue dates (PR#13 and PR#16) witch
+removes python dependency, allow to control the cursor position after a sort by
+todo (see (sort)[#sort] and/or issue #15) and fixes bug when sorting a file
+containing only lines with due:date (issue #14).
 
-If your Vim installation does **not** have Python support, this plugin **will work just fine** but this feature will be disabled.
++   v0.7.6 Incorporates [Sietse's work](https://github.com/sietse/todo.txt-vim/commit/57d45200c8b033d31c9191ee0eb0711c801cdb1d) to make cancel and mark as done mapping repeatable using [vim-repeat](https://github.com/tpope/vim-repeat).
++   v0.7.5 Incorporates [Fievel's work](https://github.com/fievel/todo.txt-vim/commit/0863e1434e9a89ace06c4856b6cb32ba9906e3de) to make overduedates work on python3.
++   v0.7.4 includes the overduedate support from Guilherme Victal (see pull
+
+    [request #45 on freitass version](https://github.com/freitass/todo.txt-vim/pull/45)),
+    it highlight dates in overdue tasks as an Error. It depends on a
+    Python library, however, and as such will only be able to work if your version
+    of Vim was compiled with the `+python` option (as most common versions do).
+ 
+    If your Vim installation does **not** have Python support, this plugin **will work just fine** but this feature will be disabled.
 
 
-Since v0.7.3, `TodoComplete` is replaced by `todo#Complete`, you might need to
-update your vimrc (see [completion](#completion)).
++   Since v0.7.3, `TodoComplete` is replaced by `todo#Complete`, you might need to update your vimrc (see [completion](#completion)).
 
 ## Introduction
 
@@ -215,6 +222,19 @@ prevent this behavior, add the following line to your vimrc
 + `<leader>-sd` : Sort the file by due-date. Entries with a due date appears
 sorted by at the beginning of the file, the rest of the file is not modified.
 
+When you sort by due dates, at the end of the sort, your cursor will be placed
+at the top of the file. This behavior can be set with the following global
+variable :
+
+    let g:TodoTxtSortDueDateCursorPos = "top"
+
+Possible values are :
+
++ `top` (default): The first line of the buffer, i.e. your most outstanding task
++ `lastdue`: The last task with a due:date set
++ `notoverdue`: The first task that is not overdue (requires #13)
++ `bottom`: The last line of the buffer
+
 ### Priorities
 
 + `<LocalLeader>j` : Lower the priority of the current line

autoload/todo.vim

@@ -167,22 +167,50 @@ function! todo#Sort()
     endif
 endfunction
 
-function! todo#SortDue()
-    silent! %s/\([dD][uU][eE]:\d\{4}\)-\(\d\{2}\)-\(\d\{2}\)/\1\2\3/g
-    " Sort adding entries with due dates add the beginning
-    sort n /[dD][uU][eE]:/
-    " Count the number of lines
-    silent normal gg
-    execute "/[dD][uU][eE]:"
-    let l:first=getpos(".")[1]
-    silent normal N
-    let l:last=getpos(".")[1]
+function! todo#SortDue()
+    " Check how many lines have a due:date on them
+    let l:tasksWithDueDate = 0
+    silent! %global/\v\c^[^x].*<due:\d{4}-\d{2}-\d{2}>/let l:tasksWithDueDate += 1
+    if l:tasksWithDueDate == 0
+        " No tasks with a due:date: No need to modify the buffer at all
+        " Also means we don't need to cater for no matches on searches below
+        return
+    endif
+    " FIXME: There is a small chance that due:\d{8} might legitimately exist in the buffer
+    " We modify due:yyyy-mm-dd to yyyymmdd which would then mean we would alter the buffer
+    " in an unexpected way, altering user data. Not sure how to deal with this at the moment.
+    " I'm going to throw an exception, and if this is a problem we can revisit.
+    silent %global/\v\c<due:\d{8}>/throw "Text matching 'due:\\d\\{8\\}' exists in the buffer, this function cannot sort your buffer"
+    " Turn the due:date from due:yyyy-mm-dd to due:yyyymmdd so we can do a numeric sort
+    silent! %substitute/\v<(due:\d{4})\-(\d{2})\-(\d{2})>/\1\2\3/ei
+    " Sort all the lines with due: by numeric yyyymmdd, they will end up in ascending order at the bottom of the buffer
+    sort in /^[^x].*\<due:/
+    " Determine the line number of the first task with a due:date
     let l:firstLineWithDue = line("$") - l:tasksWithDueDate + 1
-    " Put the sorted lines at the beginning of the file
-    execute ':'.l:first
-    execute ':d'.l:diff
-    silent normal gg
-    silent normal P
+    " Put the sorted lines at the beginning of the file
+    if l:firstLineWithDue > 1
+        " ...but only if the whole file didn't get sorted.
+        execute l:firstLineWithDue . ",$move 0"
+    endif
+    " Change the due:yyyymmdd back to due:yyyy-mm-dd.
+    silent! %substitute/\v<(due:\d{4})(\d{2})(\d{2})>/\1-\2-\3/ei
+    " Cursor is now on the last task with a due:date
+    " Let's check a global for a user preference on the cursor position.
+    if exists("g:TodoTxtSortDueDateCursorPos")
+        if g:TodoTxtSortDueDateCursorPos ==? "top"
+            normal gg
+        elseif g:TodoTxtSortDueDateCursorPos ==? "lastdue"
+            " Nothing to do
+        elseif g:TodoTxtSortDueDateCursorPos ==? "notoverdue"
+            " Let's try to put the cursor on the first non-overdue task
+            let l:overduePat = todo#GetDateRegexForPastDates()
+            execute ":silent! ?\\v<due:" . l:overduePat . ">?+1"
+        elseif g:TodoTxtSortDueDateCursorPos ==? "bottom"
+            silent normal G
+        endif
+    else
+        " Default: Top of the document
+        normal gg
     endif
     " TODO: add time sorting (YYYY-MM-DD HH:MM)
 endfunction

doc/todo.txt

@@ -31,10 +31,18 @@ Table of Contents                                          *TodoTxt-Contents* ~
 ===============================================================================
 1. Release notes                                       *TodoTxt-ReleaseNotes* ~
 
+V0.8.1 Incorporates yet antoher Fretep work : highlithing for tasks due today.
+
+v0.8 Incorporates Fretep's work on overdue dates (PR#13 and PR#16) witch removes
+python dependency, allow to control the cursor position after a sort by todo
+(see |TodoTxt-Sort| and/or issue #15) and fixes bug when sorting a file
+containing only lines with due:date (issue #14).
+
+v0.7.6 Incorporates [Sietse's work](https://github.com/sietse/todo.txt-vim/commit/57d45200c8b033d31c9191ee0eb0711c801cdb1d) to make cancel and mark as done mapping repeatable using [vim-repeat](https://github.com/tpope/vim-repeat).
+
 v0.7.5 Incorporates Fievel's work
 (https://github.com/fievel/todo.txt-vim/commit/0863e1434e9a89ace06c4856b6cb32ba9906e3de)
-to make overduedates work on python3. I have no version of vim with python3
-thus it is only tested on his side, do not hesitate to report issues.
+to make overduedates work on python3.
 
 v0.7.4 includes the overduedate support from Guilherme Victal (see pull
 request #45 on freitass version (https://github.com/freitass/todo.txt-vim/pull/45)),
@@ -229,6 +237,19 @@ prevent this behavior, add the following line to your vimrc
     `<leader>-sd` : Sort the file by due-date. Entries with a due date appears
     sorted by at the beginning of the file, the rest of the file is not modified.
 
+When you sort by due dates, at the end of the sort, your cursor will be placed
+at the top of the file. This behavior can be set with the following global
+variable :
+
+    let g:TodoTxtSortDueDateCursorPos = "top"
+
+Possible values are :
+
++ `top` (default): The first line of the buffer, i.e. your most outstanding task
++ `lastdue`: The last task with a due:date set
++ `notoverdue`: The first task that is not overdue (requires #13)
++ `bottom`: The last line of the buffer
+
 6.2 Priorities                                             *TodoTxt-Priorities*
 
     `<LocalLeader>j` : Lower the priority of the current line

ftplugin/todo.vim

@@ -12,7 +12,7 @@ set cpo&vim
 if exists("g:Todo_txt_loaded")
     finish
 else
-    let g:Todo_txt_loaded=0.7.5
+    let g:Todo_txt_loaded=0.8.1
 endif
 
 " General options {{{1

syntax/python/dateregex/dateregex/__init__.py

@@ -1,11 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-# File:        __init__.py
-# Author:      Guilherme Victal <guilherme at victal.eti.br>
-# Description: Dateregex library entry point
-# License:     Vim license
-# Website:     http://github.com/freitass/todo.txt-vim
-# Version:     0.1
-
-from dateregex.after import regex_date_after
-from dateregex.before import regex_date_before

syntax/python/dateregex/dateregex/after.py

@@ -1,95 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-# File:        after.py
-# Author:      Guilherme Victal <guilherme at victal.eti.br>
-# Description: Generates regexes after a certain date
-# License:     Vim license
-# Website:     http://github.com/freitass/todo.txt-vim
-# Version:     0.1
-
-from datetime import date, timedelta, MAXYEAR
-
-
-def _year_regex_after(year):
-    if int(year) > MAXYEAR:
-        return None
-
-    year_regex = r'(\d+\d{%s}' % len(year)
-    for idx, digit in enumerate(year):
-        if digit != '9':
-            regex = '|' + year[0:idx]
-            regex += '9' if digit == '8' else '[%s-9]' % str(int(digit) + 1)
-            if idx < len(year) - 1:
-                regex += '\d{%s}' % (len(year) - (idx + 1))
-            year_regex += regex
-
-    year_regex += ')'
-    return '-'.join((year_regex, r'\d{2}', r'\d{2}'))
-
-
-def _month_regex_after(year, month):
-    if month == '12':
-        return None
-
-    digit1, digit2 = month
-    if digit1 == '1':
-        month_regex = r'12' if month == '11' else r'1[12]'
-    else:
-        month_regex = r'1[0-2]'
-        if digit2 != '9':
-            if digit2 == '8':
-                month_regex = r'(' + month_regex + r'|09)'
-            else:
-                month_regex = r'(' + month_regex + r'|0[%s-9])'
-                month_regex = month_regex % str(int(digit2) + 1)
-    return '-'.join((year, month_regex, r'\d{2}'))
-
-def _day_regex_after(year, month, day):
-    last_month_day = str((date(int(year), (int(month) + 1) % 12, 1) + - date.resolution).day)
-    if day == last_month_day:
-        return None
-    day_regex = r'('
-    digit1, digit2 = day
-    last_digit1, last_digit2 = last_month_day
-    if digit1 == last_digit1:
-        day_regex = last_month_day if int(digit2) == int(last_digit2) - 1 else last_digit1 + r'[%s-%s]' % (str(int(digit2) + 1), last_digit2)
-    else:
-        day_regex = r'('
-        day_regex += last_digit1 if int(digit1) == int(last_digit1) - 1 else r'[%s-%s]' % (str(int(digit1) + 1), last_digit1)
-        day_regex +=r'\d'
-        if digit2 < '9':
-            day_regex += '|' + digit1
-            day_regex += '9' if digit2 == '8' else r'[%s-9]' % str(int(digit2) + 1)
-
-        day_regex += ')'
-    return '-'.join((year, month, day_regex))
-
-
-def regex_date_after(given_date):
-    year, month, day = given_date.isoformat().split('-')
-
-    year_regex = _year_regex_after(year)
-    month_regex = _month_regex_after(year, month)
-    day_regex = _day_regex_after(year, month, day)
-
-    date_regex = '(' + year_regex if year_regex else '('
-    date_regex += ('|' + month_regex) if month_regex else ''
-    date_regex += ('|' + day_regex) if day_regex else ''
-    date_regex += ')'
-    return date_regex
-
-
-def __main():
-    import re
-    date_regex = regex_date_after(date(1999,12,31))
-    print(date_regex)
-    pattern = re.compile(date_regex)
-
-
-    d = date.today() + date.resolution
-    assert pattern.match(date.strftime(d, '%Y-%m-%d')) is not None
-    print(date.strftime(d, '%Y-%m-%d') + ' is okay')
-    d += date.resolution
-
-if __name__ == '__main__':
-    __main()

syntax/python/dateregex/dateregex/before.py

@@ -1,79 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-# File:        before.py
-# Author:      Guilherme Victal <guilherme at victal.eti.br>
-# Description: Generates regexes before a certain date
-# License:     Vim license
-# Website:     http://github.com/freitass/todo.txt-vim
-# Version:     0.1
-
-from datetime import date, timedelta, MINYEAR
-
-def _year_regex_before(year):
-    if int(year) <= MINYEAR:
-        return None
-    year_regex = r'('
-    year_regex += r'\d{1,%s}' % str(len(year) - 1) if len(year) > 1 else ''
-    for idx, digit in enumerate(year):
-        if digit != '0':
-            regex = '|' + year[0:idx]
-            regex += '0' if digit == '1' else '[0-%s]' % str(int(digit) - 1)
-            if idx < len(year) - 1:
-                regex += '\d{%s}' % (len(year) - (idx + 1))
-            year_regex += regex
-
-    year_regex += ')'
-    return '-'.join((year_regex, r'\d{2}', r'\d{2}'))
-
-def _month_regex_before(year, month):
-    if month == '01':
-        return None
-
-    digit1, digit2 = month
-    if digit1 == '0':
-        month_regex = '01' if month == '02' else r'0[1-%s]' % str(int(digit2) - 1)
-    elif month == '10':
-        month_regex = r'0\d'
-    elif month == '11':
-        month_regex = r'(0\d|10)'
-    else:
-        month_regex = r'(0\d|1[01])'
-
-    return '-'.join((year, month_regex, r'\d{2}'))
-
-def _day_regex_before(year, month, day):
-    if day == '01':
-        return None
-    last_month_day = str((date(int(year), int(month) % 12 + 1, 1) + - date.resolution).day)
-    last_digit1, last_digit2 = last_month_day
-
-    digit1, digit2 = day
-    if digit1 == '0':
-        day_regex = '01' if day == '02' else r'0[1-%s]' % str(int(digit2) - 1)
-    else:
-        day_regex = r'('
-        day_regex += '0' if digit1 == '1' else r'[0-%s]' % str(int(digit1) - 1)
-        day_regex += r'\d'
-        if digit2 != '0':
-            day_regex += '|'
-            day_regex += digit1
-            day_regex += '0' if digit2 == '1' else r'[0-%s]' % str(int(digit2) - 1)
-        day_regex += ')'
-
-    return '-'.join((year, month, day_regex))
-
-
-
-
-def regex_date_before(given_date):
-    year, month, day = given_date.isoformat().split('-')
-
-    year_regex = _year_regex_before(year)
-    month_regex = _month_regex_before(year, month)
-    day_regex = _day_regex_before(year, month, day)
-
-    date_regex = '(' + year_regex if year_regex else '('
-    date_regex += ('|' + month_regex) if month_regex else ''
-    date_regex += ('|' + day_regex) if day_regex else ''
-    date_regex += ')'
-    return date_regex

syntax/python/todo.py

@@ -1,31 +0,0 @@
-#!/usr/bin/env python2
-# -*- coding: utf-8 -*-
-# File:        todo.py
-# Description: Todo.txt overdue date syntax script
-# License:     Vim license
-# Website:     http://github.com/freitass/todo.txt-vim
-# Version:     0.1
-
-import vim
-import os
-import sys
-from datetime import date
-
-dateregex_dir = os.path.join(vim.eval('s:script_dir'), 'dateregex')
-if os.path.isdir(dateregex_dir):
-    sys.path.insert(0, dateregex_dir)
-
-def add_due_date_syntax_highlight():
-    try:
-        from dateregex import regex_date_before
-    except ImportError:
-        print("dateregex module not found. Overdue dates won't be highlighted")
-        return
-
-    regex = regex_date_before(date.today())
-    regex = r'(^|<)due:%s(>|$)' % regex
-
-    vim.command("syntax match OverDueDate '\\v%s'" % regex)
-    vim.command("highlight  default  link  OverDueDate       Error")
-
-add_due_date_syntax_highlight()

syntax/todo.vim

@@ -9,38 +9,43 @@ if exists("b:current_syntax")
     finish
 endif
 
-syntax  match  TodoDone       '^[xX]\s.\+$'               contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityA  '^([aA])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityB  '^([bB])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityC  '^([cC])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityD  '^([dD])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityE  '^([eE])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityF  '^([fF])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityG  '^([gG])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityH  '^([hH])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityI  '^([iI])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityJ  '^([jJ])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityK  '^([kK])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityL  '^([lL])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityM  '^([mM])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityN  '^([nN])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityO  '^([oO])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityP  '^([pP])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityQ  '^([qQ])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityR  '^([rR])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityS  '^([sS])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityT  '^([tT])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityU  '^([uU])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityV  '^([vV])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityW  '^([wW])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityX  '^([xX])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityY  '^([yY])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
-syntax  match  TodoPriorityZ  '^([zZ])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,OverDueDate
+syntax  match  TodoDone       '^[xX]\s.\+$'               contains=TodoKey,TodoDate,TodoProject,TodoContext
+syntax  match  TodoPriorityA  '^([aA])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
+syntax  match  TodoPriorityB  '^([bB])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
+syntax  match  TodoPriorityC  '^([cC])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
+syntax  match  TodoPriorityD  '^([dD])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
+syntax  match  TodoPriorityE  '^([eE])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
+syntax  match  TodoPriorityF  '^([fF])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
+syntax  match  TodoPriorityG  '^([gG])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
+syntax  match  TodoPriorityH  '^([hH])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
+syntax  match  TodoPriorityI  '^([iI])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
+syntax  match  TodoPriorityJ  '^([jJ])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
+syntax  match  TodoPriorityK  '^([kK])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
+syntax  match  TodoPriorityL  '^([lL])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
+syntax  match  TodoPriorityM  '^([mM])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
+syntax  match  TodoPriorityN  '^([nN])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
+syntax  match  TodoPriorityO  '^([oO])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
+syntax  match  TodoPriorityP  '^([pP])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
+syntax  match  TodoPriorityQ  '^([qQ])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
+syntax  match  TodoPriorityR  '^([rR])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
+syntax  match  TodoPriorityS  '^([sS])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
+syntax  match  TodoPriorityT  '^([tT])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
+syntax  match  TodoPriorityU  '^([uU])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
+syntax  match  TodoPriorityV  '^([vV])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
+syntax  match  TodoPriorityW  '^([wW])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
+syntax  match  TodoPriorityX  '^([xX])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
+syntax  match  TodoPriorityY  '^([yY])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
+syntax  match  TodoPriorityZ  '^([zZ])\s.\+$'             contains=TodoKey,TodoDate,TodoProject,TodoContext,TodoDueToday,TodoOverDueDate
 syntax  match  TodoDate       '\d\{2,4\}-\d\{2\}-\d\{2\}' contains=NONE
 syntax  match  TodoKey        '\S*\S:\S\S*'               contains=TodoDate
 syntax  match  TodoProject    '\(^\|\W\)+[^[:blank:]]\+'  contains=NONE
 syntax  match  TodoContext    '\(^\|\W\)@[^[:blank:]]\+'  contains=NONE
 
+let s:todayDate=strftime('%Y\-%m\-%d')
+"TODO: Figure out how to allow stop the following line being highlighted inside TodoDone
+"execute 'syntax match TodoDueToday    /\v\c<(due:)@4<=' . s:todayDate . '/ contains=NONE contained'
+execute 'syntax match TodoDueToday    /\v\c<due:' . s:todayDate . '/ contains=NONE'
+
 " Other priority colours might be defined by the user
 highlight  default  link  TodoKey        Special
 highlight  default  link  TodoDone       Comment
@@ -50,13 +55,125 @@ highlight  default  link  TodoPriorityC  type
 highlight  default  link  TodoDate       PreProc
 highlight  default  link  TodoProject    Special
 highlight  default  link  TodoContext    Special
+highlight  default  link  TodoDueToday   Todo
 
-let b:curdir = expand('<sfile>:p:h')
-let s:script_dir = b:curdir . "/python/"
-if has('python3')
-    execute "py3file " . s:script_dir. "todo.py"
-elseif has('python')
-    execute "pyfile " . s:script_dir. "todo.py"
-endif
+function! todo#GetDateRegexForPastDates(...)
+    " Build a RegExp to match all dates prior to a reference date.
+    "
+    " Optionally accepts a (year, month, day) for the date, otherwise assumes the
+    " reference date is the current date.
+    "
+    " In the end, the RegExp will look something like:
+    "   =todo#GetDateRegexForPastDates(2017, 09, 15)
+    "   \v(([01]\d{3}|200\d|201[0-6])\-\d{2}\-\d{2}|(2017\-(0[0-8])\-\d{2})|(2017\-09\-0\d)|(2017\-09\-1[0-4]))
+    "
+    " We split the RegExp into a few alternation groups:
+    "   1. All dates prior to 2000, dates before this are not supported
+    "   2. All previous decades for the reference date century
+    "   3. The current decade up to the year prior to the reference year
+    "   4. All months for the reference year up to the end of the previous month
+    "   5. Days of the month part 1.
+    "   6. Days of the month part 2.
+    "
+    " Will not work on reference dates past 2099, or before 2000.
+    "
+    " Invalid months and days are not checked, i.e. 2015-14-67 will match.
+    "
+    " Years must be 4 digits.
+    "
+
+    " Get the reference date
+    let l:day=strftime("%d")
+    let l:month=strftime("%m")
+    let l:year=strftime("%Y")
+    if a:0 >= 1
+        let l:year=a:1
+    endif
+    if a:0 >= 2
+        let l:month=a:2
+    endif
+    if a:0 >= 3
+        let l:day=a:3
+    endif
+
+    " Use very magic mode, and start an alternation
+    let l:overdueRex = '\v('
+
+    " PART 1: 0000-1999
+    " This sucker is static and won't change to year 3000. I'm not coding for the year 3000.
+    let l:overdueRex = l:overdueRex . '([01]\d{3}'
+
+    " PART 2. All previous decades for the reference date century
+    " i.e. for 2017: "200\d", for 2035: "20[0-2]\d"
+    "       for 2000: skip
+    let l:decade = strpart(l:year, 2, 1)    " i.e. the 1 from 2017
+    if l:decade > 0
+        let l:overdueRex = l:overdueRex . '|20'
+        if l:decade > 1
+            let l:overdueRex = l:overdueRex . '[0-' . (l:decade - 1) . ']'
+        else
+            let l:overdueRex = l:overdueRex . '0'
+        endif
+        let l:overdueRex = l:overdueRex . '\d'
+    endif
+
+    " PART 3: This decade, to previous year
+    " i.e. for 2017: "201[0-6]", for 2035: "203[0-4]", for 2000: skip
+    let l:y = strpart(l:year, 3, 1) " Last digit of the year, i.e. 7 for 2017
+    if l:y > 0
+        if l:y > 1
+            let l:overdueRex = l:overdueRex . '|20' . l:decade . '[0-' . (l:y - 1) . ']'
+        else
+            let l:overdueRex = l:overdueRex . '|20' . l:decade . '0'
+        endif
+    endif
+    let l:overdueRex = l:overdueRex . ')\-\d{2}\-\d{2}|'
+
+    " PART 4: All months to the end of the previous month
+    " i.e. for a date of 2017-09-07, "2017-(0[1-8])-\d{2}"
+    "       for 2017-11-30: "2017-(0\d|1[0-1])-\d{2}"
+    "       for 2017-01-20: skip
+    " This only applies if the reference date is not in January
+    if l:month > 1
+        let l:overdueRex = l:overdueRex . '(' . l:year . '\-(0'
+        if l:month > 10
+            let l:overdueRex = l:overdueRex . '\d|1'
+        endif
+        let l:y = strpart(printf('%02d', l:month), 1, 1) " Second digit of the month
+        let l:overdueRex = l:overdueRex . '[0-' . (l:y - 1) . '])\-\d{2})|'
+    endif
+
+    " PART 5. Days of the month part 1.
+    " i.e.  for 2017-09-07: skip
+    "       for 2017-12-29: "2017-12-[0-1]\d"
+    let l:y = strpart(printf('%02d', l:day), 0, 1) " First digit of the day
+    if l:y > 0
+        if l:y > 1
+            let l:overdueRex = l:overdueRex . '(' . l:year . '\-' . printf('%02d', l:month) . '\-[0-' . (l:y - 1) . ']\d)|'
+        else
+            let l:overdueRex = l:overdueRex . '(' . l:year . '\-' . printf('%02d', l:month) . '\-0\d)|'
+        endif
+    endif
+
+    " PART 6. Days of the month part 2.
+    " i.e.  for 2017-09-07: "2017-09-0[0-6]"
+    "       for 2017-12-29: "2017-12-2[0-8]"
+    let l:y = strpart(printf('%02d', l:day), 0, 1) " First digit of the day
+    let l:overdueRex = l:overdueRex . '(' . l:year . '\-' . printf('%02d', l:month) . '\-' . l:y
+    let l:y = strpart(printf('%02d', l:day), 1, 1) " Last digit of the day
+    if l:y > 0
+        let l:overdueRex = l:overdueRex . '[0-' . (l:y - 1) . ']'
+    else
+        let l:overdueRex = l:overdueRex . '0'
+    endif
+    let l:overdueRex = l:overdueRex . ')'
+
+    let l:overdueRex = l:overdueRex . ')'
+
+    return l:overdueRex
+endfunction
+
+execute 'syntax match TodoOverDueDate /\v\c<due:' . todo#GetDateRegexForPastDates() . '>/'
+highlight default link TodoOverDueDate Error
 
 let b:current_syntax = "todo"