Mercurial Repositories > eric / file comparison
comparison: eric7/Plugins/WizardPlugins/QRegularExpressionWizard/QRegularExpressionWizardServer.py
eric7/Plugins/WizardPlugins/QRegularExpressionWizard/QRegularExpressionWizardServer.py
- branch
- eric7
- changeset 8312
- 800c432b34c8
- parent 8143
- 2c730d5fd177
- child 8318
- 962bce857696
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| 8311:4e8b98454baa | 8312:800c432b34c8 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2013 - 2021 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing the PyQt5 server part of the QRegularExpression wizzard. | |
| 8 """ | |
| 9 | |
| 10 import json | |
| 11 import sys | |
| 12 | |
| 13 | |
| 14 def rxValidate(regexp, options): | |
| 15 """ | |
| 16 Function to validate the given regular expression. | |
| 17 | |
| 18 @param regexp regular expression to validate (string) | |
| 19 @param options list of options (list of string) | |
| 20 @return tuple of flag indicating validity (boolean), error | |
| 21 string (string) and error offset (integer) | |
| 22 """ | |
| 23 try: | |
| 24 from PyQt5.QtCore import QRegularExpression | |
| 25 rxOptions = QRegularExpression.PatternOption.NoPatternOption | |
| 26 if "CaseInsensitiveOption" in options: | |
| 27 rxOptions |= QRegularExpression.PatternOption.CaseInsensitiveOption | |
| 28 if "MultilineOption" in options: | |
| 29 rxOptions |= QRegularExpression.PatternOption.MultilineOption | |
| 30 if "DotMatchesEverythingOption" in options: | |
| 31 rxOptions |= ( | |
| 32 QRegularExpression.PatternOption.DotMatchesEverythingOption | |
| 33 ) | |
| 34 if "ExtendedPatternSyntaxOption" in options: | |
| 35 rxOptions |= ( | |
| 36 QRegularExpression.PatternOption.ExtendedPatternSyntaxOption | |
| 37 ) | |
| 38 if "InvertedGreedinessOption" in options: | |
| 39 rxOptions |= ( | |
| 40 QRegularExpression.PatternOption.InvertedGreedinessOption | |
| 41 ) | |
| 42 if "UseUnicodePropertiesOption" in options: | |
| 43 rxOptions |= ( | |
| 44 QRegularExpression.PatternOption.UseUnicodePropertiesOption | |
| 45 ) | |
| 46 if "DontCaptureOption" in options: | |
| 47 rxOptions |= QRegularExpression.PatternOption.DontCaptureOption | |
| 48 | |
| 49 error = "" | |
| 50 errorOffset = -1 | |
| 51 re = QRegularExpression(regexp, rxOptions) | |
| 52 valid = re.isValid() | |
| 53 if not valid: | |
| 54 error = re.errorString() | |
| 55 errorOffset = re.patternErrorOffset() | |
| 56 except ImportError: | |
| 57 valid = False | |
| 58 error = "ImportError" | |
| 59 errorOffset = 0 | |
| 60 | |
| 61 return valid, error, errorOffset | |
| 62 | |
| 63 | |
| 64 def rxExecute(regexp, options, text, startpos): | |
| 65 """ | |
| 66 Function to execute the given regular expression for a given text. | |
| 67 | |
| 68 @param regexp regular expression to validate (string) | |
| 69 @param options list of options (list of string) | |
| 70 @param text text to execute on (string) | |
| 71 @param startpos start position for the execution (integer) | |
| 72 @return tuple of a flag indicating a successful match (boolean) and | |
| 73 a list of captures containing the complete match as matched string | |
| 74 (string), match start (integer), match end (integer) and match length | |
| 75 (integer) for each entry | |
| 76 """ | |
| 77 valid, error, errorOffset = rxValidate(regexp, options) | |
| 78 if not valid: | |
| 79 return valid, error, errorOffset | |
| 80 | |
| 81 from PyQt5.QtCore import QRegularExpression | |
| 82 rxOptions = QRegularExpression.PatternOption.NoPatternOption | |
| 83 if "CaseInsensitiveOption" in options: | |
| 84 rxOptions |= QRegularExpression.PatternOption.CaseInsensitiveOption | |
| 85 if "MultilineOption" in options: | |
| 86 rxOptions |= QRegularExpression.PatternOption.MultilineOption | |
| 87 if "DotMatchesEverythingOption" in options: | |
| 88 rxOptions |= ( | |
| 89 QRegularExpression.PatternOption.DotMatchesEverythingOption | |
| 90 ) | |
| 91 if "ExtendedPatternSyntaxOption" in options: | |
| 92 rxOptions |= ( | |
| 93 QRegularExpression.PatternOption.ExtendedPatternSyntaxOption | |
| 94 ) | |
| 95 if "InvertedGreedinessOption" in options: | |
| 96 rxOptions |= QRegularExpression.PatternOption.InvertedGreedinessOption | |
| 97 if "UseUnicodePropertiesOption" in options: | |
| 98 rxOptions |= ( | |
| 99 QRegularExpression.PatternOption.UseUnicodePropertiesOption | |
| 100 ) | |
| 101 if "DontCaptureOption" in options: | |
| 102 rxOptions |= QRegularExpression.PatternOption.DontCaptureOption | |
| 103 | |
| 104 matched = False | |
| 105 captures = [] | |
| 106 re = QRegularExpression(regexp, rxOptions) | |
| 107 match = re.match(text, startpos) | |
| 108 if match.hasMatch(): | |
| 109 matched = True | |
| 110 for index in range(match.lastCapturedIndex() + 1): | |
| 111 captures.append([ | |
| 112 match.captured(index), | |
| 113 match.capturedStart(index), | |
| 114 match.capturedEnd(index), | |
| 115 match.capturedLength(index) | |
| 116 ]) | |
| 117 | |
| 118 return matched, captures | |
| 119 | |
| 120 | |
| 121 def main(): | |
| 122 """ | |
| 123 Function containing the main routine. | |
| 124 """ | |
| 125 while True: | |
| 126 commandStr = sys.stdin.readline() | |
| 127 try: | |
| 128 commandDict = json.loads(commandStr) | |
| 129 responseDict = {"error": ""} | |
| 130 if "command" in commandDict: | |
| 131 command = commandDict["command"] | |
| 132 if command == "exit": | |
| 133 break | |
| 134 elif command == "available": | |
| 135 try: | |
| 136 import PyQt5 # __IGNORE_WARNING__ | |
| 137 responseDict["available"] = True | |
| 138 except ImportError: | |
| 139 responseDict["available"] = False | |
| 140 elif command == "validate": | |
| 141 valid, error, errorOffset = rxValidate( | |
| 142 commandDict["regexp"], commandDict["options"]) | |
| 143 responseDict["valid"] = valid | |
| 144 responseDict["errorMessage"] = error | |
| 145 responseDict["errorOffset"] = errorOffset | |
| 146 elif command == "execute": | |
| 147 valid, error, errorOffset = rxValidate( | |
| 148 commandDict["regexp"], commandDict["options"]) | |
| 149 if not valid: | |
| 150 responseDict["valid"] = valid | |
| 151 responseDict["errorMessage"] = error | |
| 152 responseDict["errorOffset"] = errorOffset | |
| 153 else: | |
| 154 matched, captures = rxExecute( | |
| 155 commandDict["regexp"], commandDict["options"], | |
| 156 commandDict["text"], commandDict["startpos"]) | |
| 157 responseDict["matched"] = matched | |
| 158 responseDict["captures"] = captures | |
| 159 except ValueError as err: | |
| 160 responseDict = {"error": str(err)} | |
| 161 except Exception as err: | |
| 162 responseDict = {"error": str(err)} | |
| 163 responseStr = json.dumps(responseDict) | |
| 164 sys.stdout.write(responseStr) | |
| 165 sys.stdout.flush() | |
| 166 | |
| 167 sys.exit(0) | |
| 168 | |
| 169 | |
| 170 if __name__ == "__main__": | |
| 171 main() |
