kenneth.skovhede@gmail.com
20a6757d56
git-svn-id: https://duplicati.googlecode.com/svn/trunk@11 59da171f-624f-0410-aa54-27559c288bec
580 lines
21 KiB
Python
580 lines
21 KiB
Python
# Does Python source formatting for Scintilla controls.
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import win32ui
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import win32api
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import win32con
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import winerror
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import string
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import array
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import scintillacon
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WM_KICKIDLE = 0x036A
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debugging = 0
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if debugging:
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# Output must go to another process else the result of
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# the printing itself will trigger again trigger a trace.
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import sys, win32traceutil, win32trace
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def trace(*args):
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win32trace.write(string.join(map(str, args), " ") + "\n")
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else:
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trace = lambda *args: None
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class Style:
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"""Represents a single format
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"""
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def __init__(self, name, format, background = None):
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self.name = name # Name the format representes eg, "String", "Class"
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self.background = background
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if type(format)==type(''):
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self.aliased = format
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self.format = None
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else:
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self.format = format
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self.aliased = None
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self.stylenum = None # Not yet registered.
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def IsBasedOnDefault(self):
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return len(self.format)==5
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# If the currently extended font defintion matches the
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# default format, restore the format to the "simple" format.
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def NormalizeAgainstDefault(self, defaultFormat):
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if self.IsBasedOnDefault():
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return 0 # No more to do, and not changed.
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bIsDefault = self.format[7] == defaultFormat[7] and \
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self.format[2] == defaultFormat[2]
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if bIsDefault:
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self.ForceAgainstDefault()
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return bIsDefault
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def ForceAgainstDefault(self):
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self.format = self.format[:5]
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def GetCompleteFormat(self, defaultFormat):
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# Get the complete style after applying any relevant defaults.
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if len(self.format)==5: # It is a default one
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fmt = self.format + defaultFormat[5:]
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else:
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fmt = self.format
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flags = win32con.CFM_BOLD | win32con.CFM_CHARSET | win32con.CFM_COLOR | win32con.CFM_FACE | win32con.CFM_ITALIC | win32con.CFM_SIZE
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return (flags,) + fmt[1:]
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# The Formatter interface
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# used primarily when the actual formatting is done by Scintilla!
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class FormatterBase:
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def __init__(self, scintilla):
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self.scintilla = scintilla
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self.baseFormatFixed = (-402653169, 0, 200, 0, 0, 0, 49, 'Courier New')
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self.baseFormatProp = (-402653169, 0, 200, 0, 0, 0, 49, 'Arial')
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self.bUseFixed = 1
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self.styles = {} # Indexed by name
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self.styles_by_id = {} # Indexed by allocated ID.
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# Default Background
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self.default_background = None
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self._LoadBackground()
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self.SetStyles()
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def _LoadBackground( self ):
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#load default background
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bg = int( self.LoadPreference( "Default Background", -1 ) )
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if bg != -1:
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self.default_background = bg
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if self.default_background is None:
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self.default_background = win32api.RGB( 0xff, 0xff, 0xff )
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def GetDefaultBackground( self ):
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return self.default_background
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def HookFormatter(self, parent = None):
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raise NotImplementedError
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# Used by the IDLE extensions to quickly determine if a character is a string.
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def GetStringStyle(self, pos):
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try:
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style = self.styles_by_id[self.scintilla.SCIGetStyleAt(pos)]
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except KeyError:
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# A style we dont know about - probably not even a .py file - can't be a string
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return None
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if style.name in self.string_style_names:
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return style
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return None
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def RegisterStyle(self, style, stylenum):
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assert stylenum is not None, "We must have a style number"
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assert style.stylenum is None, "Style has already been registered"
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assert not self.styles.has_key(stylenum), "We are reusing a style number!"
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style.stylenum = stylenum
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self.styles[style.name] = style
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self.styles_by_id[stylenum] = style
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def SetStyles(self):
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raise NotImplementedError
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def GetSampleText(self):
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return "Sample Text for the Format Dialog"
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def GetDefaultFormat(self):
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if self.bUseFixed:
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return self.baseFormatFixed
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return self.baseFormatProp
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# Update the control with the new style format.
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def _ReformatStyle(self, style):
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assert style.stylenum is not None, "Unregistered style."
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#print "Reformat style", style.name, style.stylenum
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scintilla=self.scintilla
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stylenum = style.stylenum
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# Now we have the style number, indirect for the actual style.
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if style.aliased is not None:
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style = self.styles[style.aliased]
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f=style.format
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if style.IsBasedOnDefault():
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baseFormat = self.GetDefaultFormat()
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else: baseFormat = f
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scintilla.SCIStyleSetFore(stylenum, f[4])
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scintilla.SCIStyleSetFont(stylenum, baseFormat[7], baseFormat[5])
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if f[1] & 1: scintilla.SCIStyleSetBold(stylenum, 1)
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else: scintilla.SCIStyleSetBold(stylenum, 0)
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if f[1] & 2: scintilla.SCIStyleSetItalic(stylenum, 1)
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else: scintilla.SCIStyleSetItalic(stylenum, 0)
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scintilla.SCIStyleSetSize(stylenum, int(baseFormat[2]/20))
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if style.background is not None:
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scintilla.SCIStyleSetBack(stylenum, style.background)
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else:
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scintilla.SCIStyleSetBack(stylenum, self.GetDefaultBackground() )
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scintilla.SCIStyleSetEOLFilled(stylenum, 1) # Only needed for unclosed strings.
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def GetStyleByNum(self, stylenum):
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return self.styles_by_id[stylenum]
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def ApplyFormattingStyles(self, bReload=1):
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if bReload:
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self.LoadPreferences()
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baseFormat = self.GetDefaultFormat()
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defaultStyle = Style("default", baseFormat)
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defaultStyle.stylenum = scintillacon.STYLE_DEFAULT
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self._ReformatStyle(defaultStyle)
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for style in self.styles.values():
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if style.aliased is None:
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style.NormalizeAgainstDefault(baseFormat)
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self._ReformatStyle(style)
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self.scintilla.InvalidateRect()
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# Some functions for loading and saving preferences. By default
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# an INI file (well, MFC maps this to the registry) is used.
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def LoadPreferences(self):
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self.baseFormatFixed = eval(self.LoadPreference("Base Format Fixed", str(self.baseFormatFixed)))
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self.baseFormatProp = eval(self.LoadPreference("Base Format Proportional", str(self.baseFormatProp)))
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self.bUseFixed = int(self.LoadPreference("Use Fixed", 1))
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for style in self.styles.values():
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new = self.LoadPreference(style.name, str(style.format))
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try:
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style.format = eval(new)
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bg = int(self.LoadPreference(style.name + " background", -1))
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if bg != -1:
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style.background = bg
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if style.background == self.default_background:
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style.background = None
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except:
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print "Error loading style data for", style.name
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def LoadPreference(self, name, default):
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return win32ui.GetProfileVal("Format", name, default)
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def SavePreferences(self):
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self.SavePreference("Base Format Fixed", str(self.baseFormatFixed))
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self.SavePreference("Base Format Proportional", str(self.baseFormatProp))
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self.SavePreference("Use Fixed", self.bUseFixed)
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for style in self.styles.values():
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if style.aliased is None:
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self.SavePreference(style.name, str(style.format))
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if style.background is not None:
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bg_name = style.name + " background"
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self.SavePreference(bg_name, style.background) # May be None
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def SavePreference(self, name, value):
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if value is None:
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hkey = win32ui.GetAppRegistryKey()
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try:
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subkey = win32api.RegOpenKey(hkey, "Format", 0, win32con.KEY_SET_VALUE)
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except win32api.error, (rc, fn, msg):
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if rc != winerror.ERROR_FILE_NOT_FOUND:
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raise
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subkey.Close()
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else:
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win32ui.WriteProfileVal("Format", name, value)
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# An abstract formatter
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# For all formatters we actually implement here.
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# (as opposed to those formatters built in to Scintilla)
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class Formatter(FormatterBase):
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def __init__(self, scintilla):
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self.bCompleteWhileIdle = 0
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self.bHaveIdleHandler = 0 # Dont currently have an idle handle
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self.nextstylenum = 0
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FormatterBase.__init__(self, scintilla)
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def HookFormatter(self, parent = None):
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if parent is None: parent = self.scintilla.GetParent() # was GetParentFrame()!?
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parent.HookNotify(self.OnStyleNeeded, scintillacon.SCN_STYLENEEDED)
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def OnStyleNeeded(self, std, extra):
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notify = self.scintilla.SCIUnpackNotifyMessage(extra)
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endStyledChar = self.scintilla.SendScintilla(scintillacon.SCI_GETENDSTYLED)
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lineEndStyled = self.scintilla.LineFromChar(endStyledChar)
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endStyled = self.scintilla.LineIndex(lineEndStyled)
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#print "enPosPaint %d endStyledChar %d lineEndStyled %d endStyled %d" % (endPosPaint, endStyledChar, lineEndStyled, endStyled)
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self.Colorize(endStyled, notify.position)
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def ColorSeg(self, start, end, styleName):
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end = end+1
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# assert end-start>=0, "Can't have negative styling"
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stylenum = self.styles[styleName].stylenum
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while start<end:
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self.style_buffer[start]=chr(stylenum)
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start = start+1
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#self.scintilla.SCISetStyling(end - start + 1, stylenum)
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def RegisterStyle(self, style, stylenum = None):
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if stylenum is None:
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stylenum = self.nextstylenum
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self.nextstylenum = self.nextstylenum + 1
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FormatterBase.RegisterStyle(self, style, stylenum)
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def ColorizeString(self, str, charStart, styleStart):
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raise RuntimeError, "You must override this method"
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def Colorize(self, start=0, end=-1):
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scintilla = self.scintilla
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stringVal = scintilla.GetTextRange(start, end)
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if start > 0:
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stylenum = scintilla.SCIGetStyleAt(start - 1)
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styleStart = self.GetStyleByNum(stylenum).name
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else:
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styleStart = None
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# trace("Coloring", start, end, end-start, len(stringVal), styleStart, self.scintilla.SCIGetCharAt(start))
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scintilla.SCIStartStyling(start, 31)
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self.style_buffer = array.array("c", chr(0)*len(stringVal))
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self.ColorizeString(stringVal, styleStart)
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scintilla.SCISetStylingEx(self.style_buffer)
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self.style_buffer = None
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# trace("After styling, end styled is", self.scintilla.SCIGetEndStyled())
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if self.bCompleteWhileIdle and not self.bHaveIdleHandler and end!=-1 and end < scintilla.GetTextLength():
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self.bHaveIdleHandler = 1
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win32ui.GetApp().AddIdleHandler(self.DoMoreColoring)
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# Kicking idle makes the app seem slower when initially repainting!
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# win32ui.GetMainFrame().PostMessage(WM_KICKIDLE, 0, 0)
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def DoMoreColoring(self, handler, count):
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try:
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scintilla = self.scintilla
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endStyled = scintilla.SCIGetEndStyled()
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lineStartStyled = scintilla.LineFromChar(endStyled)
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start = scintilla.LineIndex(lineStartStyled)
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end = scintilla.LineIndex(lineStartStyled+1)
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textlen = scintilla.GetTextLength()
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if end < 0: end = textlen
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finished = end >= textlen
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self.Colorize(start, end)
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except (win32ui.error, AttributeError):
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# Window may have closed before we finished - no big deal!
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finished = 1
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if finished:
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self.bHaveIdleHandler = 0
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win32ui.GetApp().DeleteIdleHandler(handler)
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return not finished
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# A Formatter that knows how to format Python source
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from keyword import iskeyword, kwlist
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wordstarts = '_0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'
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wordchars = '._0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'
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operators = '%^&*()-+=|{}[]:;<>,/?!.~'
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STYLE_DEFAULT = "Whitespace"
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STYLE_COMMENT = "Comment"
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STYLE_COMMENT_BLOCK = "Comment Blocks"
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STYLE_NUMBER = "Number"
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STYLE_STRING = "String"
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STYLE_SQSTRING = "SQ String"
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STYLE_TQSSTRING = "TQS String"
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STYLE_TQDSTRING = "TQD String"
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STYLE_KEYWORD = "Keyword"
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STYLE_CLASS = "Class"
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STYLE_METHOD = "Method"
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STYLE_OPERATOR = "Operator"
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STYLE_IDENTIFIER = "Identifier"
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STYLE_BRACE = "Brace/Paren - matching"
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STYLE_BRACEBAD = "Brace/Paren - unmatched"
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STYLE_STRINGEOL = "String with no terminator"
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STRING_STYLES = [STYLE_STRING, STYLE_SQSTRING, STYLE_TQSSTRING, STYLE_TQDSTRING, STYLE_STRINGEOL]
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# These styles can have any ID - they are not special to scintilla itself.
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# However, if we use the built-in lexer, then we must use its style numbers
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# so in that case, they _are_ special.
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PYTHON_STYLES = [
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(STYLE_DEFAULT, (0, 0, 200, 0, 0x808080), None, scintillacon.SCE_P_DEFAULT ),
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(STYLE_COMMENT, (0, 2, 200, 0, 0x008000), None, scintillacon.SCE_P_COMMENTLINE ),
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(STYLE_COMMENT_BLOCK,(0, 2, 200, 0, 0x808080), None, scintillacon.SCE_P_COMMENTBLOCK ),
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(STYLE_NUMBER, (0, 0, 200, 0, 0x808000), None, scintillacon.SCE_P_NUMBER ),
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(STYLE_STRING, (0, 0, 200, 0, 0x008080), None, scintillacon.SCE_P_STRING ),
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(STYLE_SQSTRING, STYLE_STRING, None, scintillacon.SCE_P_CHARACTER ),
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(STYLE_TQSSTRING, STYLE_STRING, None, scintillacon.SCE_P_TRIPLE ),
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(STYLE_TQDSTRING, STYLE_STRING, None, scintillacon.SCE_P_TRIPLEDOUBLE),
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(STYLE_STRINGEOL, (0, 0, 200, 0, 0x000000), 0x008080, scintillacon.SCE_P_STRINGEOL),
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(STYLE_KEYWORD, (0, 1, 200, 0, 0x800000), None, scintillacon.SCE_P_WORD),
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(STYLE_CLASS, (0, 1, 200, 0, 0xFF0000), None, scintillacon.SCE_P_CLASSNAME ),
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(STYLE_METHOD, (0, 1, 200, 0, 0x808000), None, scintillacon.SCE_P_DEFNAME),
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(STYLE_OPERATOR, (0, 0, 200, 0, 0x000000), None, scintillacon.SCE_P_OPERATOR),
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(STYLE_IDENTIFIER, (0, 0, 200, 0, 0x000000), None, scintillacon.SCE_P_IDENTIFIER ),
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]
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# These styles _always_ have this specific style number, regardless of
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# internal or external formatter.
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SPECIAL_STYLES = [
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(STYLE_BRACE, (0, 0, 200, 0, 0x000000), 0xffff80, scintillacon.STYLE_BRACELIGHT),
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(STYLE_BRACEBAD, (0, 0, 200, 0, 0x000000), 0x8ea5f2, scintillacon.STYLE_BRACEBAD),
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]
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PythonSampleCode = """\
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# Some Python
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class Sample(Super):
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def Fn(self):
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\tself.v = 1024
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dest = 'dest.html'
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x = func(a + 1)|)
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s = "I forget...
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## A large
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## comment block"""
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class PythonSourceFormatter(Formatter):
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string_style_names = STRING_STYLES
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def GetSampleText(self):
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return PythonSampleCode
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def LoadStyles(self):
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pass
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def SetStyles(self):
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for name, format, bg, ignore in PYTHON_STYLES:
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self.RegisterStyle( Style(name, format, bg) )
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for name, format, bg, sc_id in SPECIAL_STYLES:
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self.RegisterStyle( Style(name, format, bg), sc_id )
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def ClassifyWord(self, cdoc, start, end, prevWord):
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word = cdoc[start:end+1]
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attr = STYLE_IDENTIFIER
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if prevWord == "class":
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attr = STYLE_CLASS
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elif prevWord == "def":
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attr = STYLE_METHOD
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elif cdoc[start] in string.digits:
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attr = STYLE_NUMBER
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elif iskeyword(word):
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attr = STYLE_KEYWORD
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self.ColorSeg(start, end, attr)
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return word
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def ColorizeString(self, str, styleStart):
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if styleStart is None: styleStart = STYLE_DEFAULT
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return self.ColorizePythonCode(str, 0, styleStart)
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def ColorizePythonCode(self, cdoc, charStart, styleStart):
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# Straight translation of C++, should do better
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lengthDoc = len(cdoc)
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if lengthDoc <= charStart: return
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prevWord = ""
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state = styleStart
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chPrev = chPrev2 = chPrev3 = ' '
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chNext = cdoc[charStart]
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chNext2 = cdoc[charStart]
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startSeg = i = charStart
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while i < lengthDoc:
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ch = chNext
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chNext = ' '
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if i+1 < lengthDoc: chNext = cdoc[i+1]
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chNext2 = ' '
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if i+2 < lengthDoc: chNext2 = cdoc[i+2]
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if state == STYLE_DEFAULT:
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if ch in wordstarts:
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self.ColorSeg(startSeg, i - 1, STYLE_DEFAULT)
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state = STYLE_KEYWORD
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startSeg = i
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elif ch == '#':
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self.ColorSeg(startSeg, i - 1, STYLE_DEFAULT)
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if chNext == '#':
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state = STYLE_COMMENT_BLOCK
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else:
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state = STYLE_COMMENT
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startSeg = i
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elif ch == '\"':
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self.ColorSeg(startSeg, i - 1, STYLE_DEFAULT)
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startSeg = i
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state = STYLE_COMMENT
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if chNext == '\"' and chNext2 == '\"':
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i = i + 2
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state = STYLE_TQDSTRING
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ch = ' '
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chPrev = ' '
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chNext = ' '
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if i+1 < lengthDoc: chNext = cdoc[i+1]
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else:
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state = STYLE_STRING
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elif ch == '\'':
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self.ColorSeg(startSeg, i - 1, STYLE_DEFAULT)
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startSeg = i
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state = STYLE_COMMENT
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if chNext == '\'' and chNext2 == '\'':
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i = i + 2
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state = STYLE_TQSSTRING
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ch = ' '
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chPrev = ' '
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chNext = ' '
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if i+1 < lengthDoc: chNext = cdoc[i+1]
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else:
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state = STYLE_SQSTRING
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elif ch in operators:
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self.ColorSeg(startSeg, i - 1, STYLE_DEFAULT)
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self.ColorSeg(i, i, STYLE_OPERATOR)
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startSeg = i+1
|
|
elif state == STYLE_KEYWORD:
|
|
if ch not in wordchars:
|
|
prevWord = self.ClassifyWord(cdoc, startSeg, i-1, prevWord)
|
|
state = STYLE_DEFAULT
|
|
startSeg = i
|
|
if ch == '#':
|
|
if chNext == '#':
|
|
state = STYLE_COMMENT_BLOCK
|
|
else:
|
|
state = STYLE_COMMENT
|
|
elif ch == '\"':
|
|
if chNext == '\"' and chNext2 == '\"':
|
|
i = i + 2
|
|
state = STYLE_TQDSTRING
|
|
ch = ' '
|
|
chPrev = ' '
|
|
chNext = ' '
|
|
if i+1 < lengthDoc: chNext = cdoc[i+1]
|
|
else:
|
|
state = STYLE_STRING
|
|
elif ch == '\'':
|
|
if chNext == '\'' and chNext2 == '\'':
|
|
i = i + 2
|
|
state = STYLE_TQSSTRING
|
|
ch = ' '
|
|
chPrev = ' '
|
|
chNext = ' '
|
|
if i+1 < lengthDoc: chNext = cdoc[i+1]
|
|
else:
|
|
state = STYLE_SQSTRING
|
|
elif ch in operators:
|
|
self.ColorSeg(startSeg, i, STYLE_OPERATOR)
|
|
startSeg = i+1
|
|
elif state == STYLE_COMMENT or state == STYLE_COMMENT_BLOCK:
|
|
if ch == '\r' or ch == '\n':
|
|
self.ColorSeg(startSeg, i-1, state)
|
|
state = STYLE_DEFAULT
|
|
startSeg = i
|
|
elif state == STYLE_STRING:
|
|
if ch == '\\':
|
|
if chNext == '\"' or chNext == '\'' or chNext == '\\':
|
|
i = i + 1
|
|
ch = chNext
|
|
chNext = ' '
|
|
if i+1 < lengthDoc: chNext = cdoc[i+1]
|
|
elif ch == '\"':
|
|
self.ColorSeg(startSeg, i, STYLE_STRING)
|
|
state = STYLE_DEFAULT
|
|
startSeg = i+1
|
|
elif state == STYLE_SQSTRING:
|
|
if ch == '\\':
|
|
if chNext == '\"' or chNext == '\'' or chNext == '\\':
|
|
i = i+1
|
|
ch = chNext
|
|
chNext = ' '
|
|
if i+1 < lengthDoc: chNext = cdoc[i+1]
|
|
elif ch == '\'':
|
|
self.ColorSeg(startSeg, i, STYLE_SQSTRING)
|
|
state = STYLE_DEFAULT
|
|
startSeg = i+1
|
|
elif state == STYLE_TQSSTRING:
|
|
if ch == '\'' and chPrev == '\'' and chPrev2 == '\'' and chPrev3 != '\\':
|
|
self.ColorSeg(startSeg, i, STYLE_TQSSTRING)
|
|
state = STYLE_DEFAULT
|
|
startSeg = i+1
|
|
elif state == STYLE_TQDSTRING and ch == '\"' and chPrev == '\"' and chPrev2 == '\"' and chPrev3 != '\\':
|
|
self.ColorSeg(startSeg, i, STYLE_TQDSTRING)
|
|
state = STYLE_DEFAULT
|
|
startSeg = i+1
|
|
chPrev3 = chPrev2
|
|
chPrev2 = chPrev
|
|
chPrev = ch
|
|
i = i + 1
|
|
if startSeg < lengthDoc:
|
|
if state == STYLE_KEYWORD:
|
|
self.ClassifyWord(cdoc, startSeg, lengthDoc-1, prevWord)
|
|
else:
|
|
self.ColorSeg(startSeg, lengthDoc-1, state)
|
|
|
|
|
|
# These taken from the SciTE properties file.
|
|
source_formatter_extensions = [
|
|
( string.split(".py .pys .pyw"), scintillacon.SCLEX_PYTHON ),
|
|
( string.split(".html .htm .asp .shtml"), scintillacon.SCLEX_HTML ),
|
|
( string.split("c .cc .cpp .cxx .h .hh .hpp .hxx .idl .odl .php3 .phtml .inc .js"),scintillacon.SCLEX_CPP ),
|
|
( string.split(".vbs .frm .ctl .cls"), scintillacon.SCLEX_VB ),
|
|
( string.split(".pl .pm .cgi .pod"), scintillacon.SCLEX_PERL ),
|
|
( string.split(".sql .spec .body .sps .spb .sf .sp"), scintillacon.SCLEX_SQL ),
|
|
( string.split(".tex .sty"), scintillacon.SCLEX_LATEX ),
|
|
( string.split(".xml .xul"), scintillacon.SCLEX_XML ),
|
|
( string.split(".err"), scintillacon.SCLEX_ERRORLIST ),
|
|
( string.split(".mak"), scintillacon.SCLEX_MAKEFILE ),
|
|
( string.split(".bat .cmd"), scintillacon.SCLEX_BATCH ),
|
|
]
|
|
|
|
class BuiltinSourceFormatter(FormatterBase):
|
|
# A class that represents a formatter built-in to Scintilla
|
|
def __init__(self, scintilla, ext):
|
|
self.ext = ext
|
|
FormatterBase.__init__(self, scintilla)
|
|
|
|
def Colorize(self, start=0, end=-1):
|
|
self.scintilla.SendScintilla(scintillacon.SCI_COLOURISE, start, end)
|
|
def RegisterStyle(self, style, stylenum = None):
|
|
assert style.stylenum is None, "Style has already been registered"
|
|
if stylenum is None:
|
|
stylenum = self.nextstylenum
|
|
self.nextstylenum = self.nextstylenum + 1
|
|
assert self.styles.get(stylenum) is None, "We are reusing a style number!"
|
|
style.stylenum = stylenum
|
|
self.styles[style.name] = style
|
|
self.styles_by_id[stylenum] = style
|
|
|
|
def HookFormatter(self, parent = None):
|
|
sc = self.scintilla
|
|
for exts, formatter in source_formatter_extensions:
|
|
if self.ext in exts:
|
|
formatter_use = formatter
|
|
break
|
|
else:
|
|
formatter_use = scintillacon.SCLEX_PYTHON
|
|
sc.SendScintilla(scintillacon.SCI_SETLEXER, formatter_use)
|
|
keywords = string.join(kwlist)
|
|
sc.SCISetKeywords(keywords)
|
|
|
|
class BuiltinPythonSourceFormatter(BuiltinSourceFormatter):
|
|
sci_lexer_name = scintillacon.SCLEX_PYTHON
|
|
string_style_names = STRING_STYLES
|
|
def __init__(self, sc, ext = ".py"):
|
|
BuiltinSourceFormatter.__init__(self, sc, ext)
|
|
def SetStyles(self):
|
|
for name, format, bg, sc_id in PYTHON_STYLES:
|
|
self.RegisterStyle( Style(name, format, bg), sc_id )
|
|
for name, format, bg, sc_id in SPECIAL_STYLES:
|
|
self.RegisterStyle( Style(name, format, bg), sc_id )
|
|
def GetSampleText(self):
|
|
return PythonSampleCode
|