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Source code

#!/usr/bin/env python

import sys
from PyQt4 import QtCore, QtGui, uic

class HighLighter (QtGui.QSyntaxHighlighter):
    class HighlightingRule:
        pattern = QtCore.QRegExp()
        format = QtGui.QTextCharFormat()

    highlightingRules = []
    
    
    keywordFormat = QtGui.QTextCharFormat()
    
        
    def __init__(self, parent=None):
        QtGui.QSyntaxHighlighter.__init__(parent)

        rule = self.HighlightingRule()

        self.keywordFormat.foreground = QtCore.Qt.darkBlue
        self.keywordFormat.fontWeight = QtGui.QFont.Bold
        
        keywordPatterns = QtCore.QStringList()
        keywordPatterns += "\\bmov\\b"
        keywordPatterns += "\\badd\\b"
        keywordPatterns += "\\bjmp\\b"
        keywordPatterns += "\\bjnz\\b"
        
        for i in keywordPatterns:
            rule.pattern = QtCore.QRegExp(i)
            rule.format = self.keywordFormat
            self.highlightingRules += [rule]
        print "num eh que eu cheguei aki mesmo"

    def highlightBlock(self, text):
        print "entrei"
        for i in self.highlightingRules:
            expression = QRegExp(i.pattern)
            index = text.indexOf(expression)
            while(index >= 0):
                length = expression.matchedLength()
                self.setFormat(index, length, i.format)
                index = text.indexOf(expression, index+length)
        
        
    
class FasmIde(QtGui.QMainWindow):
    def __init__(self, *args):
        QtGui.QWidget.__init__(self, *args)
        uic.loadUi("fasmIde.ui", self)


        a = HighLighter(self.txtEdit.document())
        self.txtEdit.document()
#    @QtCore.pyqtSignature("")

app = QtGui.QApplication(sys.argv)
widget = FasmIde()
widget.show()
app.exec_()

Source code

<ui version="4.0" >
 <class>frmFasmIde</class>
 <widget class="QMainWindow" name="frmFasmIde" >
  <property name="geometry" >
   <rect>
    <x>0</x>
    <y>0</y>
    <width>800</width>
    <height>853</height>
   </rect>
  </property>
  <property name="windowTitle" >
   <string>MainWindow</string>
  </property>
  <widget class="QWidget" name="centralwidget" >
   <layout class="QVBoxLayout" >
    <property name="margin" >
     <number>9</number>
    </property>
    <property name="spacing" >
     <number>6</number>
    </property>
    <item>
     <widget class="QTextEdit" name="txtEdit" />
    </item>
   </layout>
  </widget>
  <widget class="QMenuBar" name="menubar" >
   <property name="geometry" >
    <rect>
     <x>0</x>
     <y>0</y>
     <width>800</width>
     <height>19</height>
    </rect>
   </property>
   <widget class="QMenu" name="menuHelp" >
    <property name="title" >
     <string>Help</string>
    </property>
   </widget>
   <widget class="QMenu" name="menuEditar" >
    <property name="title" >
     <string>Editar</string>
    </property>
   </widget>
   <widget class="QMenu" name="menuArquivo" >
    <property name="title" >
     <string>Arquivo</string>
    </property>
    <addaction name="actionAbrir" />
    <addaction name="separator" />
    <addaction name="actionSalvar" />
   </widget>
   <addaction name="menuArquivo" />
   <addaction name="menuEditar" />
   <addaction name="menuHelp" />
  </widget>
  <widget class="QStatusBar" name="statusbar" />
  <action name="actionAbrir" >
   <property name="text" >
    <string>Abrir</string>
   </property>
  </action>
  <action name="actionSalvar" >
   <property name="text" >
    <string>Salvar</string>
   </property>
  </action>
 </widget>
 <resources/>
 <connections/>
</ui>