eric6/QScintilla/TypingCompleters/CompleterRuby.py

Sun, 29 Nov 2020 14:10:18 +0100

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Sun, 29 Nov 2020 14:10:18 +0100
changeset 7844
cb108454eda7
parent 7775
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child 7923
91e843545d9a
permissions
-rw-r--r--

WebBrowserWindow: removed the use of QTextCodec to prepare the Qt6 migration.

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2007 - 2020 Detlev Offenbach <detlev@die-offenbachs.de>
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4 #
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5
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6 """
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7 Module implementing a typing completer for Ruby.
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8 """
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9
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10 import re
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11
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12 from PyQt5.Qsci import QsciLexerRuby, QsciScintilla
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13
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14 from .CompleterBase import CompleterBase
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15
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16 import Preferences
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17
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18
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19 class CompleterRuby(CompleterBase):
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20 """
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21 Class implementing typing completer for Ruby.
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22 """
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23 def __init__(self, editor, parent=None):
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24 """
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25 Constructor
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26
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27 @param editor reference to the editor object (QScintilla.Editor)
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28 @param parent reference to the parent object (QObject)
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29 """
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30 super(CompleterRuby, self).__init__(editor, parent)
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31
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32 self.__beginRX = re.compile(r"""^=begin """)
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33 self.__beginNlRX = re.compile(r"""^=begin\r?\n""")
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34 self.__hereRX = re.compile(r"""<<-?['"]?(\w*)['"]?\r?\n""")
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35
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36 self.readSettings()
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37
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38 def readSettings(self):
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39 """
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40 Public slot called to reread the configuration parameters.
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41 """
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42 self.setEnabled(Preferences.getEditorTyping("Ruby/EnabledTypingAids"))
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43 self.__insertClosingBrace = Preferences.getEditorTyping(
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44 "Ruby/InsertClosingBrace")
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45 self.__indentBrace = Preferences.getEditorTyping(
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46 "Ruby/IndentBrace")
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47 self.__skipBrace = Preferences.getEditorTyping(
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48 "Ruby/SkipBrace")
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49 self.__insertQuote = Preferences.getEditorTyping(
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50 "Ruby/InsertQuote")
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51 self.__insertBlank = Preferences.getEditorTyping(
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52 "Ruby/InsertBlank")
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53 self.__insertHereDoc = Preferences.getEditorTyping(
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54 "Ruby/InsertHereDoc")
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55 self.__insertInlineDoc = Preferences.getEditorTyping(
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56 "Ruby/InsertInlineDoc")
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57
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58 def charAdded(self, charNumber):
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59 """
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60 Public slot called to handle the user entering a character.
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61
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62 @param charNumber value of the character entered (integer)
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63 """
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64 char = chr(charNumber)
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65 if char not in ['(', ')', '{', '}', '[', ']', ',', "'", '"',
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66 '\n', ' ']:
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67 return # take the short route
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68
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69 line, col = self.editor.getCursorPosition()
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70
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71 if (
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72 self.__inComment(line, col) or
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73 self.__inDoubleQuotedString() or
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74 self.__inSingleQuotedString() or
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75 self.__inHereDocument() or
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76 self.__inInlineDocument()
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77 ):
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78 return
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79
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80 # open parenthesis
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81 # insert closing parenthesis and self
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82 if char == '(':
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83 txt = self.editor.text(line)[:col]
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84 if self.__insertClosingBrace:
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85 self.editor.insert(')')
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86
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87 # closing parenthesis
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88 # skip matching closing parenthesis
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89 elif char in [')', '}', ']']:
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90 txt = self.editor.text(line)
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91 if col < len(txt) and char == txt[col]:
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92 if self.__skipBrace:
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93 self.editor.setSelection(line, col, line, col + 1)
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94 self.editor.removeSelectedText()
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95
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96 # space
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97 # complete inline documentation
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98 elif char == ' ':
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99 txt = self.editor.text(line)[:col]
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100 if self.__insertInlineDoc and self.__beginRX.fullmatch(txt):
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101 self.editor.insert('=end')
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102
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103 # comma
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104 # insert blank
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105 elif char == ',':
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106 if self.__insertBlank:
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107 self.editor.insert(' ')
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108 self.editor.setCursorPosition(line, col + 1)
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109
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110 # open curly brace
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111 # insert closing brace
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112 elif char == '{':
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113 if self.__insertClosingBrace:
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114 self.editor.insert('}')
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115
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116 # open bracket
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117 # insert closing bracket
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118 elif char == '[':
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119 if self.__insertClosingBrace:
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120 self.editor.insert(']')
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121
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122 # double quote
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123 # insert double quote
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124 elif char == '"':
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125 if self.__insertQuote:
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126 self.editor.insert('"')
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127
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128 # quote
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129 # insert quote
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130 elif char == '\'':
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131 if self.__insertQuote:
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diff changeset
132 self.editor.insert('\'')
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133
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134 # new line
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135 # indent to opening brace, complete inline documentation
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136 elif char == '\n':
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137 txt = self.editor.text(line - 1)
7775
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parents: 7360
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138 if self.__insertInlineDoc and self.__beginNlRX.fullmatch(txt):
0
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parents:
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139 self.editor.insert('=end')
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diff changeset
140 elif self.__insertHereDoc and self.__hereRX.fullmatch(txt):
4a1db75550bd Changed code to not use deprecated 'QRegExp' anymore.
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parents: 7360
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141 self.editor.insert(self.__hereRX.fullmatch(txt).group(1))
0
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142 elif self.__indentBrace and re.search(":\r?\n", txt) is None:
6997
24eabcea4c59 Python and Ruby Typing: added support for 'from ... import (...)' and changed the indentation when the previous line ends with '(', '[' or '{'.
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143 stxt = txt.strip()
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parents: 6942
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144 if stxt and stxt[-1] in ("(", "[", "{"):
24eabcea4c59 Python and Ruby Typing: added support for 'from ... import (...)' and changed the indentation when the previous line ends with '(', '[' or '{'.
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145 # indent one more level
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146 self.editor.indent(line)
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147 self.editor.editorCommand(QsciScintilla.SCI_VCHOME)
24eabcea4c59 Python and Ruby Typing: added support for 'from ... import (...)' and changed the indentation when the previous line ends with '(', '[' or '{'.
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148 else:
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149 # indent to the level of the opening brace
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150 openCount = len(re.findall("[({[]", txt))
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parents: 6942
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151 closeCount = len(re.findall(r"[)}\]]", txt))
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152 if openCount > closeCount:
24eabcea4c59 Python and Ruby Typing: added support for 'from ... import (...)' and changed the indentation when the previous line ends with '(', '[' or '{'.
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153 openCount = 0
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154 closeCount = 0
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155 openList = list(re.finditer("[({[]", txt))
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156 index = len(openList) - 1
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157 while index > -1 and openCount == closeCount:
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158 lastOpenIndex = openList[index].start()
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159 txt2 = txt[lastOpenIndex:]
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160 openCount = len(re.findall("[({[]", txt2))
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parents: 6942
diff changeset
161 closeCount = len(re.findall(r"[)}\]]", txt2))
24eabcea4c59 Python and Ruby Typing: added support for 'from ... import (...)' and changed the indentation when the previous line ends with '(', '[' or '{'.
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parents: 6942
diff changeset
162 index -= 1
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parents: 6942
diff changeset
163 if openCount > closeCount and lastOpenIndex > col:
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parents: 6942
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164 self.editor.insert(' ' * (lastOpenIndex - col + 1))
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diff changeset
165 self.editor.setCursorPosition(line,
24eabcea4c59 Python and Ruby Typing: added support for 'from ... import (...)' and changed the indentation when the previous line ends with '(', '[' or '{'.
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parents: 6942
diff changeset
166 lastOpenIndex + 1)
0
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diff changeset
167
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parents:
diff changeset
168 def __inComment(self, line, col):
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parents:
diff changeset
169 """
2965
d133c7edd88a Continued correcting doc strings by using the new doc string checker.
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diff changeset
170 Private method to check, if the cursor is inside a comment.
0
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171
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172 @param line current line (integer)
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parents:
diff changeset
173 @param col current position within line (integer)
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diff changeset
174 @return flag indicating, if the cursor is inside a comment (boolean)
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175 """
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parents:
diff changeset
176 txt = self.editor.text(line)
85
2d80c7a3e773 Fixed porting bugs causing traceback.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 13
diff changeset
177 if col == len(txt):
2d80c7a3e773 Fixed porting bugs causing traceback.
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parents: 13
diff changeset
178 col -= 1
0
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diff changeset
179 while col >= 0:
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diff changeset
180 if txt[col] == "#":
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parents:
diff changeset
181 return True
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diff changeset
182 col -= 1
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parents:
diff changeset
183 return False
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184
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185 def __inDoubleQuotedString(self):
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parents:
diff changeset
186 """
3011
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diff changeset
187 Private method to check, if the cursor is within a double quoted
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188 string.
0
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189
945
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diff changeset
190 @return flag indicating, if the cursor is inside a double
0
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191 quoted string (boolean)
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parents:
diff changeset
192 """
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parents:
diff changeset
193 return self.editor.currentStyle() == QsciLexerRuby.DoubleQuotedString
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diff changeset
194
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diff changeset
195 def __inSingleQuotedString(self):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
196 """
3011
18292228c724 Continued to shorten the code lines to max. 79 characters.
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197 Private method to check, if the cursor is within a single quoted
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diff changeset
198 string.
0
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diff changeset
199
945
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diff changeset
200 @return flag indicating, if the cursor is inside a single
0
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parents:
diff changeset
201 quoted string (boolean)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
202 """
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parents:
diff changeset
203 return self.editor.currentStyle() == QsciLexerRuby.SingleQuotedString
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parents:
diff changeset
204
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parents:
diff changeset
205 def __inHereDocument(self):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
206 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
207 Private method to check, if the cursor is within a here document.
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parents:
diff changeset
208
3011
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diff changeset
209 @return flag indicating, if the cursor is inside a here document
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Detlev Offenbach <detlev@die-offenbachs.de>
parents: 2965
diff changeset
210 (boolean)
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
211 """
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parents:
diff changeset
212 return self.editor.currentStyle() == QsciLexerRuby.HereDocument
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parents:
diff changeset
213
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
214 def __inInlineDocument(self):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
215 """
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parents:
diff changeset
216 Private method to check, if the cursor is within an inline document.
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parents:
diff changeset
217
3011
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diff changeset
218 @return flag indicating, if the cursor is inside an inline document
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diff changeset
219 (boolean)
0
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
220 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
221 return self.editor.currentStyle() == QsciLexerRuby.POD

eric ide

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