Steve Holden wrote:
Frederic Rentsch wrote:
Frederic Rentsch wrote:
Frederic Rentsch wrote:
Paul McGuire wrote:
"Michael B. Trausch" <"mike$#at^&nospam!%trauschus"> wrote in message
Sorry about the line wrap mess in the previous message. I try again with
another setting:
Frederic
I give up!
Don't give up, attach it as a file!
regards
Steve
Thank you for the encourangement!
Frederic
The following code does everything Mike needs to do, except interact with wx.
It is written to run standing alone. To incorporate it in Mike's class the
functions would be methods and the globals would be instance attributes.
Running it does this:
>>> chunk_1 = """This is a test string containing some ANSI sequences.
Sequence 1 Valid code, invalid numbers: \x1b[10;12mEnd of sequence 1
Sequence 2 Not an 'm'-code: \x1b[30;4;77hEnd of sequence 2
Sequence 3 Color setting code: \x1b[30;45mEnd of sequence 3
Sequence 4 Parameter setting code: \x1b[7mEnd of sequence 4
Sequence 5 Color setting code spanning calls: \x1b[3"""
>>> chunk_2 = """7;42mEnd of sequence 5
Sequence 6 Invalid code: \x1b[End of sequence 6
Sequence 7 A valid code at the end: \x1b[9m
"""
>>> init ()
>>> process_text (chunk_1)
>>> process_text (chunk_2)
>>> print output
This is a test string containing some ANSI sequences.
Sequence 1 Valid code, invalid numbers: >>!!!Ignoring unknown number 10!!!<<
>>!!!Ignoring unknown number 1!!!<< End of sequence 1
Sequence 2 Not an 'm'-code: End of sequence 2
Sequence 3 Color setting code: >>setting foreground BLACK<< >>setting
background MAGENTA<< End of sequence 3
Sequence 4 Parameter setting code: >>Calling parameter setting function 7<<
End of sequence 4
Sequence 5 Color setting code spanning calls: >>setting foreground GREY<<
>>setting background GREEN<< End of sequence 5
Sequence 6 Invalid code: nd of sequence 6
Sequence 7 A valid code at the end: >>Calling parameter setting function 9<<
#################
def init (): # This would have to be added to __init__ ()
import SE # SEL is less import overhead but doesn't have interactive
development features (not needed in production versions)
global output #-> For testing
global Pre_Processor, digits_re, Colors, truncated_escape_hold # global ->
instance attributes
# Screening out invalid characters and all ansi escape sequences except
those controlling color
grit = '\n'.join (['(%d)=' % i for i in range (128,255)]) + ' (13)= ' #
Makes 127 fixed expressions plus deletion of \r
# Regular expression r'[\x80-\xff\r]' would work fine but is four times
slower than 127 fixed expressions
all_escapes = r'\x1b\[\d*(;\d*)*[A-Za-z]'
color_escapes = r'\x1b\[\d*(;\d*)*m'
Pre_Processor = SE.SE ('%s ~%s~= ~%s~==' % (grit, all_escapes,
color_escapes)) # SEL.SEL for production
# 'all_escapes' also matches what 'color_escapes' matches. With identical
regular expression matches the last regex definition applies.
# Isolating digits.
digits_re = re.compile ('\d+')
# Color numbers to color names
Colors = SE.SE ('''
30=BLACK 40=BLACK
31=RED 41=RED
32=GREEN 42=GREEN
33=YELLOW 43=YELLOW
34=BLUE 44=BLUE
35=MAGENTA 45=MAGENTA
36=CYAN 46=CYAN
37=GREY 47=GREY
39=GREY 49=BLACK
<EAT>
''')
truncated_escape_hold = '' #-> self.truncated_escape_hold
output = '' #-> For testing only
# What follows replaces all others of Mike's methods in class
AnsiTextCtrl(wx.TextCtrl)
def process_text (text):
global output #-> For testing
global truncated_escape_hold, digits_re, Pre_Processor, Colors
purged_text = truncated_escape_hold + Pre_Processor (text)
# Text is now clean except for color codes, which beginning with ESC
ansi_controlled_sections = purged_text.split ('\x1b')
# Each section starts with a color control, except the first one (leftmost
split-off)
if ansi_controlled_sections:
#-> self.AppendText(ansi_controlled_sections [0]) #-> For real
output += ansi_controlled_sections [0] #-> For
testing
for section in ansi_controlled_sections [1:]:
if section == '': continue
try: escape_ansi_controlled_section, data = section.split ('m', 1)
except ValueError: # Truncated escape
truncated_escape_hold = '\x1b' + section # Restore ESC removed by
split ('\x1b')
else:
escapes = escape_ansi_controlled_section.split (';')
for escape in escapes:
try: number = digits_re.search (escape).group ()
except AttributeError:
output += ' >>!!!Invalid number %s!!!<<< ' % escape #->
For testing
continue
_set_wx (number)
#-> self.AppendText(data) #-> For real
output += data #-> For testing
def _set_wx (n):
global output # For testing only
global Colors
int_n = int (n)
if 0 <= int_n <= 9:
#-> self._number_to_method (n)() #-> For real
output += ' >>Calling parameter setting function %s<< ' % n #-> For
testing
return
color = Colors (n)
if color:
if 30 <= int_n < 50:
if 40 <= int_n:
#-> self.AnsiBGColor = color #-> For real
output += ' >>setting background %s<< ' % color #-> For
testing
else:
#-> self.AnsiFGColor = color #-> For real
output += ' >>setting foreground %s<< ' % color #-> For
testing
return
output += ' >>!!!Ignoring unknown number %s!!!<< ' % n #-> For
testing
#-> For real requires this in addition:
#->
#-> # Methods controlled by 'm' code 0 to 9: # Presumably 'm'?
#->
#-> def _0 (self):
#-> self.AnsiFGColor = 'GREY'
#-> self.AnsiBGColor = 'BLACK'
#-> self.AnsiFontSize = 9
#-> self.AnsiFontFamily = wx.FONTFAMILY_TELETYPE
#-> self.AnsiFontStyle = wx.FONTSTYLE_NORMAL
#-> self.AnsiFontWeight = wx.FONTWEIGHT_NORMAL
#-> self.AnsiFontUnderline = False
#->
#-> def _1 (self): self.AnsiFontWeight = wx.FONTWEIGHT_BOLD
#-> def _2 (self): self.AnsiFontWeight = wx.FONTWEIGHT_LIGHT
#-> def _3 (self): self.AnsiFontStyle = wx.FONTSTYLE_ITALIC
#-> def _4 (self): self.AnsiFontUnderline = True
#-> def _5 (self): pass
#-> def _7 (self): self.AnsiFGColor, self.AnsiBGColor = self.AnsiBGColor,
self.AnsiFGColor
#-> def _8 (self): self.AnsiFGColor = self.AnsiBGColor
#-> def _9 (self): pass
#->
#->
#-> _number_to_method = {
#-> '0' : _0,
#-> '1' : _1,
#-> '2' : _2,
#-> '3' : _3,
#-> '4' : _4,
#-> '7' : _7,
#-> '8' : _8,
#-> '9' : _9,
#-> }
--
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