Mercurial Repositories > eric / file comparison
comparison: Plugins/WizardPlugins/QRegularExpressionWizard/QRegularExpressionWizardServer.py
Plugins/WizardPlugins/QRegularExpressionWizard/QRegularExpressionWizardServer.py
- branch
- Py2 comp.
- changeset 2791
- a9577f248f04
- parent 2748
- 3731148a7cdf
- child 3057
- 10516539f238
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| 2790:6686a3326df8 | 2791:a9577f248f04 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2013 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing the PyQt5 server part of the QRegularExpression wizzard. | |
| 8 """ | |
| 9 | |
| 10 from __future__ import unicode_literals # __IGNORE_WARNING__ | |
| 11 | |
| 12 import json | |
| 13 import sys | |
| 14 | |
| 15 | |
| 16 def rxValidate(regexp, options): | |
| 17 """ | |
| 18 Function to validate the given regular expression. | |
| 19 | |
| 20 @param regexp regular expression to validate (string) | |
| 21 @param options list of options (list of string) | |
| 22 @return tuple of flag indicating validity (boolean), error | |
| 23 string (string) and error offset (integer) | |
| 24 """ | |
| 25 try: | |
| 26 from PyQt5.QtCore import QRegularExpression | |
| 27 rxOptions = QRegularExpression.NoPatternOption | |
| 28 if "CaseInsensitiveOption" in options: | |
| 29 rxOptions |= QRegularExpression.CaseInsensitiveOption | |
| 30 if "MultilineOption" in options: | |
| 31 rxOptions |= QRegularExpression.MultilineOption | |
| 32 if "DotMatchesEverythingOption" in options: | |
| 33 rxOptions |= QRegularExpression.DotMatchesEverythingOption | |
| 34 if "ExtendedPatternSyntaxOption" in options: | |
| 35 rxOptions |= QRegularExpression.ExtendedPatternSyntaxOption | |
| 36 if "InvertedGreedinessOption" in options: | |
| 37 rxOptions |= QRegularExpression.InvertedGreedinessOption | |
| 38 if "UseUnicodePropertiesOption" in options: | |
| 39 rxOptions |= QRegularExpression.UseUnicodePropertiesOption | |
| 40 if "DontCaptureOption" in options: | |
| 41 rxOptions |= QRegularExpression.DontCaptureOption | |
| 42 | |
| 43 error = "" | |
| 44 errorOffset = -1 | |
| 45 re = QRegularExpression(regexp, rxOptions) | |
| 46 valid = re.isValid() | |
| 47 if not valid: | |
| 48 error = re.errorString() | |
| 49 errorOffset = re.patternErrorOffset() | |
| 50 except ImportError: | |
| 51 valid = False | |
| 52 error = "ImportError" | |
| 53 errorOffset = 0 | |
| 54 | |
| 55 return valid, error, errorOffset | |
| 56 | |
| 57 | |
| 58 def rxExecute(regexp, options, text, startpos): | |
| 59 """ | |
| 60 Function to execute the given regular expression for a given text. | |
| 61 | |
| 62 @param regexp regular expression to validate (string) | |
| 63 @param options list of options (list of string) | |
| 64 @param text text to execute on (string) | |
| 65 @param startpos start position for the execution (integer) | |
| 66 @return tuple of a flag indicating a successful match (boolean) and | |
| 67 a list of captures containing the complete match as matched string | |
| 68 (string), match start (integer), match end (integer) and match length | |
| 69 (integer) for each entry | |
| 70 """ | |
| 71 valid, error, errorOffset = rxValidate(regexp, options) | |
| 72 if not valid: | |
| 73 return valid, error, errorOffset | |
| 74 | |
| 75 from PyQt5.QtCore import QRegularExpression | |
| 76 rxOptions = QRegularExpression.NoPatternOption | |
| 77 if "CaseInsensitiveOption" in options: | |
| 78 rxOptions |= QRegularExpression.CaseInsensitiveOption | |
| 79 if "MultilineOption" in options: | |
| 80 rxOptions |= QRegularExpression.MultilineOption | |
| 81 if "DotMatchesEverythingOption" in options: | |
| 82 rxOptions |= QRegularExpression.DotMatchesEverythingOption | |
| 83 if "ExtendedPatternSyntaxOption" in options: | |
| 84 rxOptions |= QRegularExpression.ExtendedPatternSyntaxOption | |
| 85 if "InvertedGreedinessOption" in options: | |
| 86 rxOptions |= QRegularExpression.InvertedGreedinessOption | |
| 87 if "UseUnicodePropertiesOption" in options: | |
| 88 rxOptions |= QRegularExpression.UseUnicodePropertiesOption | |
| 89 if "DontCaptureOption" in options: | |
| 90 rxOptions |= QRegularExpression.DontCaptureOption | |
| 91 | |
| 92 matched = False | |
| 93 captures = [] | |
| 94 re = QRegularExpression(regexp, rxOptions) | |
| 95 match = re.match(text, startpos) | |
| 96 if match.hasMatch(): | |
| 97 matched = True | |
| 98 for index in range(match.lastCapturedIndex() + 1): | |
| 99 captures.append([ | |
| 100 match.captured(index), | |
| 101 match.capturedStart(index), | |
| 102 match.capturedEnd(index), | |
| 103 match.capturedLength(index) | |
| 104 ]) | |
| 105 | |
| 106 return matched, captures | |
| 107 | |
| 108 | |
| 109 def main(): | |
| 110 """ | |
| 111 Function containing the main routine. | |
| 112 """ | |
| 113 while True: | |
| 114 commandStr = sys.stdin.readline() | |
| 115 try: | |
| 116 commandDict = json.loads(commandStr) | |
| 117 responseDict = {"error": ""} | |
| 118 if "command" in commandDict: | |
| 119 command = commandDict["command"] | |
| 120 if command == "exit": | |
| 121 break | |
| 122 elif command == "available": | |
| 123 try: | |
| 124 import PyQt5 # __IGNORE_WARNING__ | |
| 125 responseDict["available"] = True | |
| 126 except ImportError: | |
| 127 responseDict["available"] = False | |
| 128 elif command == "validate": | |
| 129 valid, error, errorOffset = rxValidate(commandDict["regexp"], | |
| 130 commandDict["options"]) | |
| 131 responseDict["valid"] = valid | |
| 132 responseDict["errorMessage"] = error | |
| 133 responseDict["errorOffset"] = errorOffset | |
| 134 elif command == "execute": | |
| 135 valid, error, errorOffset = rxValidate(commandDict["regexp"], | |
| 136 commandDict["options"]) | |
| 137 if not valid: | |
| 138 responseDict["valid"] = valid | |
| 139 responseDict["errorMessage"] = error | |
| 140 responseDict["errorOffset"] = errorOffset | |
| 141 else: | |
| 142 matched, captures = rxExecute(commandDict["regexp"], | |
| 143 commandDict["options"], commandDict["text"], | |
| 144 commandDict["startpos"]) | |
| 145 responseDict["matched"] = matched | |
| 146 responseDict["captures"] = captures | |
| 147 except ValueError as err: | |
| 148 responseDict = {"error": str(err)} | |
| 149 except Exception as err: | |
| 150 responseDict = {"error": str(err)} | |
| 151 responseStr = json.dumps(responseDict) | |
| 152 sys.stdout.write(responseStr) | |
| 153 sys.stdout.flush() | |
| 154 | |
| 155 sys.exit(0) | |
| 156 | |
| 157 | |
| 158 if __name__ == "__main__": | |
| 159 main() |
