Handles searching a text widget for Find, Replace, and Grep.
| 17 | |
| 18 | |
| 19 | class SearchEngine: |
| 20 | """Handles searching a text widget for Find, Replace, and Grep.""" |
| 21 | |
| 22 | def __init__(self, root): |
| 23 | '''Initialize Variables that save search state. |
| 24 | |
| 25 | The dialogs bind these to the UI elements present in the dialogs. |
| 26 | ''' |
| 27 | self.root = root # need for report_error() |
| 28 | self.patvar = StringVar(root, '') # search pattern |
| 29 | self.revar = BooleanVar(root, False) # regular expression? |
| 30 | self.casevar = BooleanVar(root, False) # match case? |
| 31 | self.wordvar = BooleanVar(root, False) # match whole word? |
| 32 | self.wrapvar = BooleanVar(root, True) # wrap around buffer? |
| 33 | self.backvar = BooleanVar(root, False) # search backwards? |
| 34 | |
| 35 | # Access methods |
| 36 | |
| 37 | def getpat(self): |
| 38 | return self.patvar.get() |
| 39 | |
| 40 | def setpat(self, pat): |
| 41 | self.patvar.set(pat) |
| 42 | |
| 43 | def isre(self): |
| 44 | return self.revar.get() |
| 45 | |
| 46 | def iscase(self): |
| 47 | return self.casevar.get() |
| 48 | |
| 49 | def isword(self): |
| 50 | return self.wordvar.get() |
| 51 | |
| 52 | def iswrap(self): |
| 53 | return self.wrapvar.get() |
| 54 | |
| 55 | def isback(self): |
| 56 | return self.backvar.get() |
| 57 | |
| 58 | # Higher level access methods |
| 59 | |
| 60 | def setcookedpat(self, pat): |
| 61 | "Set pattern after escaping if re." |
| 62 | # called only in search.py: 66 |
| 63 | if self.isre(): |
| 64 | pat = re.escape(pat) |
| 65 | self.setpat(pat) |
| 66 | |
| 67 | def getcookedpat(self): |
| 68 | pat = self.getpat() |
| 69 | if not self.isre(): # if True, see setcookedpat |
| 70 | pat = re.escape(pat) |
| 71 | if self.isword(): |
| 72 | pat = r"\b%s\b" % pat |
| 73 | return pat |
| 74 | |
| 75 | def getprog(self): |
| 76 | "Return compiled cooked search pattern." |
no outgoing calls
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