1 files changed, 128 insertions, 0 deletions
diff --git a/lib/python2.7/site-packages/wx-3.0-msw/wx/py/parse.py b/lib/python2.7/site-packages/wx-3.0-msw/wx/py/parse.py
new file mode 100644
index 0000000..bb6c819
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+++ b/lib/python2.7/site-packages/wx-3.0-msw/wx/py/parse.py
@@ -0,0 +1,128 @@
+"""parse.py is a utility that allows simple checking for line continuations
+to give the shell information about where text is commented and where it is
+not and also how to appropriately break up a sequence of commands into
+separate multi-line commands...
+"""
+
+__author__ = "David N. Mashburn <david.n.mashburn@gmail.com>"
+# created 12/20/2009
+
+import re
+
+# change this to testForContinuations
+
+def testForContinuations(codeBlock,ignoreErrors=False):
+    """ Test 4 different types of continuations:""" + \
+    """ String Continuations (ie with ''')""" + \
+    """ Indentation Block Continuations (ie "if 1:" )""" + \
+    """ Line Continuations (ie with \\ character )""" + \
+    """ Parenthetical continuations (, [, or {"""
+    
+    stringMark = None
+    paraList = []
+    indentNumber=[0]
+    
+    stringMarks = ['"""',"'''",'"',"'"]
+    openMarks = ['(','[','{']
+    closeMarks = [')',']','}']
+    paraMarkDict = { '(':')', '[':']', '{':'}' }
+    
+    stringContinuationList=[]
+    lineContinuationList=[] # For \ continuations ... False because cannot start as line Continuation...
+    indentationBlockList=[]
+    parentheticalContinuationList=[]
+    newIndent=False
+    lspContinuation=False
+    for i,l in enumerate(codeBlock.split('\n')):
+        currentIndentation = len(l)-len(l.lstrip())
+        
+        if i>0:
+            lspContinuation = lineContinuationList[-1] or \
+                              stringContinuationList[-1] or \
+                              parentheticalContinuationList[-1]
+        # first, check for non-executing lines (whitespace and/or comments only)
+        if l.lstrip()=='':
+            emptyLine=True
+        elif l.strip()[0]=='#':
+            emptyLine=True
+        else: # otherwise, check the indentation...
+            emptyLine=False
+            if newIndent and currentIndentation>indentNumber[-1]:
+                newIndent=False
+                indentNumber.append(currentIndentation)
+            elif lspContinuation:
+                pass
+            elif not newIndent and currentIndentation in indentNumber:
+                while currentIndentation<indentNumber[-1]:
+                    indentNumber.pop() # This is the end of an indentation block
+            elif not ignoreErrors:
+                #print 'Invalid Indentation!!'
+                return ['Invalid Indentation Error',i]
+        
+        firstWord = re.match(' *\w*',l).group().lstrip()
+        if firstWord in ['if','else','elif','for','while',
+                         'def','class','try','except','finally']:
+            hasContinuationWord = True
+        else:
+            hasContinuationWord = False
+        
+        
+        commented=False
+        nonCommentLength=len(l)
+                
+        result = re.finditer('"""'+'|'+"'''" + r'''|"|'|\"|\'|\(|\)|\[|\]|\{|\}|#''',l)
+        for r in result:
+            j = r.group()
+            
+            if stringMark == None:
+                if j=='#': # If it is a legitimate comment, ignore everything after
+                    commented=True
+                    # get length up to last non-comment character
+                    nonCommentLength = r.start()
+                    break
+                elif j in stringMarks:
+                    stringMark=j
+                else:
+                    if paraList != [] and j in closeMarks:
+                        if paraMarkDict[paraList[-1]]==j:
+                            paraList.pop()
+                        elif not ignoreErrors:
+                            #print 'Invalid Syntax!!'
+                            return ['Invalid Syntax Error',i]
+                    if j in openMarks:
+                        paraList.append(j)
+            elif stringMark==j:
+                stringMark=None
+        
+        stringContinuationList.append(stringMark!=None)
+        
+        indentationBlockList.append(False)
+        nonCommentString = l[:nonCommentLength].rstrip()
+        if nonCommentString!='' and stringContinuationList[-1]==False:
+            if nonCommentString[-1]==':':
+                indentationBlockList[-1]=True
+                newIndent=True
+        
+        lineContinuationList.append(False)
+        if len(l)>0 and not commented:
+            if l[-1]=='\\':
+                lineContinuationList[-1]=True
+        
+        parentheticalContinuationList.append( paraList != [] )
+    
+    # Now stringContinuationList (et al) is line by line key for magic
+    # telling it whether or not each next line is part of a string continuation
+    
+    if (stringContinuationList[-1] or indentationBlockList[-1] or \
+       lineContinuationList[-1] or parentheticalContinuationList[-1]) \
+       and not ignoreErrors:
+        #print 'Incomplete Syntax!!'
+        return ['Incomplete Syntax Error',i]
+    
+    if newIndent and not ignoreErrors:
+        #print 'Incomplete Indentation!'
+        return ['Incomplete Indentation Error',i]
+    
+    # Note that if one of these errors above gets thrown, the best solution is to pass the resulting block
+    # to the interpreter as exec instead of interp
+    return stringContinuationList,indentationBlockList,lineContinuationList,parentheticalContinuationList