Syntax coloring in editor

[korakotc]

The new Text() control support many color, font, highlight and style.
Therefore, we are now capable of making a more decent editor.
Here's an example how python source code can be syntax-colored.

You need first to install the PyFontify module from here
http://linux.duke.edu/~mstenner/free...y/pyfontify.py

from appuifw import *
from pyfontify import fontify
import os, e32

src = ur"""
__version__ = "0.4"
import string, re, keyword  
commentPat = "#.*"  
# Build up a regular expression
pat = "q[^\q\n]*(\\\\[\000-\377][^\q\n]*)*q"
"""

color = { 'keyword': 0x0000ff,
          'string': 0xff00ff,
          'comment': 0x008000,
          'function': 0x008080,
          'class': 0x008080 }

t = Text()
pos = 0
for tag, start, end, sl in fontify(src):
    t.color = 0
    t.add(src[pos:start])
    t.color = color[tag]
    t.add(src[start:end])
    pos = end
t.color = 0
t.add(src[pos:])

app.body = t

e32.ao_sleep(10)

See screenshot here.
http://photos22.flickr.com/30187174_8598b800ec_o.jpg

[eriksmartt]

Very nice!

[Zen13546]

nice. maybe you can remember I was developing a text editor for python programming purposes, so i couldnt have forgotten function like syntax highlighting ... but i hadnt found out any way how to colour the part of to text without deleting other part, so i could just create a very slow algorhitm ... after an afternoon of debugging it was working, but it is very slow, processing 1kB of text takes about 1 minute, so it isn't very useful ...

if this algorhitm is better, I'll try to implement it, when I find some free time...