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comparison dwtx/jface/text/FindReplaceDocumentAdapterContentProposalProvider.d @ 129:eb30df5ca28b

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Added JFace Text sources
author Frank Benoit <benoit@tionex.de>
date Sat, 23 Aug 2008 19:10:48 +0200
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children c4fb132a086c
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128:8df1d4193877 129:eb30df5ca28b
1 /*******************************************************************************
2 * Copyright (c) 2008 IBM Corporation and others.
3 * All rights reserved. This program and the accompanying materials
4 * are made available under the terms of the Eclipse Public License v1.0
5 * which accompanies this distribution, and is available at
6 * http://www.eclipse.org/legal/epl-v10.html
7 *
8 * Contributors:
9 * IBM Corporation - initial API and implementation
10 * Cagatay Calli <ccalli@gmail.com> - [find/replace] retain caps when replacing - https://bugs.eclipse.org/bugs/show_bug.cgi?id=28949
11 * Port to the D programming language:
12 * Frank Benoit <benoit@tionex.de>
13 *******************************************************************************/
14 module dwtx.jface.text.FindReplaceDocumentAdapterContentProposalProvider;
15
16 import dwt.dwthelper.utils;
17
18 import java.util.ArrayList;
19
20 import dwtx.jface.fieldassist.IContentProposal;
21 import dwtx.jface.fieldassist.IContentProposalProvider;
22
23
24 /**
25 * Content assist proposal provider for the {@link FindReplaceDocumentAdapter}.
26 * <p>
27 * Clients can subclass to provide additional proposals in case they are supported
28 * by their own find/replace mechanism.
29 * </p>
30 * <p>
31 * <strong>Note:</strong> Clients must not make any assumptions about the returned
32 * proposals. This can change from release to release to adapt to
33 * changes made in {@link FindReplaceDocumentAdapter}.
34 * </p>
35 *
36 * @since 3.4
37 */
38 public class FindReplaceDocumentAdapterContentProposalProvider : IContentProposalProvider {
39
40
41 /**
42 * Proposal computer.
43 */
44 private static class ProposalComputer {
45
46 private static class Proposal : IContentProposal {
47
48 private String fContent;
49 private String fLabel;
50 private String fDescription;
51 private int fCursorPosition;
52
53 Proposal(String content, String label, String description, int cursorPosition) {
54 fContent= content;
55 fLabel= label;
56 fDescription= description;
57 fCursorPosition= cursorPosition;
58 }
59
60 public String getContent() {
61 return fContent;
62 }
63
64 public String getLabel() {
65 return fLabel;
66 }
67
68 public String getDescription() {
69 return fDescription;
70 }
71
72 public int getCursorPosition() {
73 return fCursorPosition;
74 }
75 }
76
77
78 /**
79 * The whole regular expression.
80 */
81 private final String fExpression;
82 /**
83 * The document offset.
84 */
85 private final int fDocumentOffset;
86 /**
87 * The high-priority proposals.
88 */
89 private final ArrayList fPriorityProposals;
90 /**
91 * The low-priority proposals.
92 */
93 private final ArrayList fProposals;
94 /**
95 * <code>true</code> iff <code>fExpression</code> ends with an open escape.
96 */
97 private final bool fIsEscape;
98
99 /**
100 * Creates a new Proposal Computer.
101 * @param contents the contents of the subject control
102 * @param position the cursor position
103 */
104 public ProposalComputer(String contents, int position) {
105 fExpression= contents;
106 fDocumentOffset= position;
107 fPriorityProposals= new ArrayList();
108 fProposals= new ArrayList();
109
110 bool isEscape= false;
111 esc: for (int i= position - 1; i >= 0; i--) {
112 if (fExpression.charAt(i) is '\\')
113 isEscape= !isEscape;
114 else
115 break esc;
116 }
117 fIsEscape= isEscape;
118 }
119
120 /**
121 * Computes applicable proposals for the find field.
122 * @return the proposals
123 */
124 public IContentProposal[] computeFindProposals() {
125 //characters
126 addBsProposal("\\\\", RegExMessages.getString("displayString_bs_bs"), RegExMessages.getString("additionalInfo_bs_bs")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
127 addBracketProposal("\\0", 2, RegExMessages.getString("displayString_bs_0"), RegExMessages.getString("additionalInfo_bs_0")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
128 addBracketProposal("\\x", 2, RegExMessages.getString("displayString_bs_x"), RegExMessages.getString("additionalInfo_bs_x")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
129 addBracketProposal("\\u", 2, RegExMessages.getString("displayString_bs_u"), RegExMessages.getString("additionalInfo_bs_u")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
130 addBsProposal("\\t", RegExMessages.getString("displayString_bs_t"), RegExMessages.getString("additionalInfo_bs_t")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
131 addBsProposal("\\R", RegExMessages.getString("displayString_bs_R"), RegExMessages.getString("additionalInfo_bs_R")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
132 addBsProposal("\\n", RegExMessages.getString("displayString_bs_n"), RegExMessages.getString("additionalInfo_bs_n")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
133 addBsProposal("\\r", RegExMessages.getString("displayString_bs_r"), RegExMessages.getString("additionalInfo_bs_r")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
134 addBsProposal("\\f", RegExMessages.getString("displayString_bs_f"), RegExMessages.getString("additionalInfo_bs_f")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
135 addBsProposal("\\a", RegExMessages.getString("displayString_bs_a"), RegExMessages.getString("additionalInfo_bs_a")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
136 addBsProposal("\\e", RegExMessages.getString("displayString_bs_e"), RegExMessages.getString("additionalInfo_bs_e")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
137 addBracketProposal("\\c", 2, RegExMessages.getString("displayString_bs_c"), RegExMessages.getString("additionalInfo_bs_c")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
138
139 if (! fIsEscape)
140 addBracketProposal(".", 1, RegExMessages.getString("displayString_dot"), RegExMessages.getString("additionalInfo_dot")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
141 addBsProposal("\\d", RegExMessages.getString("displayString_bs_d"), RegExMessages.getString("additionalInfo_bs_d")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
142 addBsProposal("\\D", RegExMessages.getString("displayString_bs_D"), RegExMessages.getString("additionalInfo_bs_D")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
143 addBsProposal("\\s", RegExMessages.getString("displayString_bs_s"), RegExMessages.getString("additionalInfo_bs_s")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
144 addBsProposal("\\S", RegExMessages.getString("displayString_bs_S"), RegExMessages.getString("additionalInfo_bs_S")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
145 addBsProposal("\\w", RegExMessages.getString("displayString_bs_w"), RegExMessages.getString("additionalInfo_bs_w")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
146 addBsProposal("\\W", RegExMessages.getString("displayString_bs_W"), RegExMessages.getString("additionalInfo_bs_W")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
147
148 // back reference
149 addBsProposal("\\", RegExMessages.getString("displayString_bs_i"), RegExMessages.getString("additionalInfo_bs_i")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
150
151 //quoting
152 addBsProposal("\\", RegExMessages.getString("displayString_bs"), RegExMessages.getString("additionalInfo_bs")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
153 addBsProposal("\\Q", RegExMessages.getString("displayString_bs_Q"), RegExMessages.getString("additionalInfo_bs_Q")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
154 addBsProposal("\\E", RegExMessages.getString("displayString_bs_E"), RegExMessages.getString("additionalInfo_bs_E")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
155
156 //character sets
157 if (! fIsEscape) {
158 addBracketProposal("[]", 1, RegExMessages.getString("displayString_set"), RegExMessages.getString("additionalInfo_set")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
159 addBracketProposal("[^]", 2, RegExMessages.getString("displayString_setExcl"), RegExMessages.getString("additionalInfo_setExcl")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
160 addBracketProposal("[-]", 1, RegExMessages.getString("displayString_setRange"), RegExMessages.getString("additionalInfo_setRange")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
161 addProposal("&&", RegExMessages.getString("displayString_setInter"), RegExMessages.getString("additionalInfo_setInter")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
162 }
163 if (! fIsEscape && fDocumentOffset > 0 && fExpression.charAt(fDocumentOffset - 1) is '\\') {
164 addProposal("\\p{}", 3, RegExMessages.getString("displayString_posix"), RegExMessages.getString("additionalInfo_posix")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
165 addProposal("\\P{}", 3, RegExMessages.getString("displayString_posixNot"), RegExMessages.getString("additionalInfo_posixNot")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
166 } else {
167 addBracketProposal("\\p{}", 3, RegExMessages.getString("displayString_posix"), RegExMessages.getString("additionalInfo_posix")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
168 addBracketProposal("\\P{}", 3, RegExMessages.getString("displayString_posixNot"), RegExMessages.getString("additionalInfo_posixNot")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
169 }
170
171 //boundary matchers
172 if (fDocumentOffset is 0) {
173 addPriorityProposal("^", RegExMessages.getString("displayString_start"), RegExMessages.getString("additionalInfo_start")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
174 } else if (fDocumentOffset is 1 && fExpression.charAt(0) is '^') {
175 addBracketProposal("^", 1, RegExMessages.getString("displayString_start"), RegExMessages.getString("additionalInfo_start")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
176 }
177 if (fDocumentOffset is fExpression.length()) {
178 addProposal("$", RegExMessages.getString("displayString_end"), RegExMessages.getString("additionalInfo_end")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
179 }
180 addBsProposal("\\b", RegExMessages.getString("displayString_bs_b"), RegExMessages.getString("additionalInfo_bs_b")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
181 addBsProposal("\\B", RegExMessages.getString("displayString_bs_B"), RegExMessages.getString("additionalInfo_bs_B")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
182 addBsProposal("\\A", RegExMessages.getString("displayString_bs_A"), RegExMessages.getString("additionalInfo_bs_A")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
183 addBsProposal("\\G", RegExMessages.getString("displayString_bs_G"), RegExMessages.getString("additionalInfo_bs_G")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
184 addBsProposal("\\Z", RegExMessages.getString("displayString_bs_Z"), RegExMessages.getString("additionalInfo_bs_Z")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
185 addBsProposal("\\z", RegExMessages.getString("displayString_bs_z"), RegExMessages.getString("additionalInfo_bs_z")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
186
187 if (! fIsEscape) {
188 //capturing groups
189 addBracketProposal("()", 1, RegExMessages.getString("displayString_group"), RegExMessages.getString("additionalInfo_group")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
190
191 //flags
192 addBracketProposal("(?)", 2, RegExMessages.getString("displayString_flag"), RegExMessages.getString("additionalInfo_flag")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
193 addBracketProposal("(?:)", 3, RegExMessages.getString("displayString_flagExpr"), RegExMessages.getString("additionalInfo_flagExpr")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
194
195 //non-capturing group
196 addBracketProposal("(?:)", 3, RegExMessages.getString("displayString_nonCap"), RegExMessages.getString("additionalInfo_nonCap")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
197 addBracketProposal("(?>)", 3, RegExMessages.getString("displayString_atomicCap"), RegExMessages.getString("additionalInfo_atomicCap")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
198
199 //look around
200 addBracketProposal("(?=)", 3, RegExMessages.getString("displayString_posLookahead"), RegExMessages.getString("additionalInfo_posLookahead")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
201 addBracketProposal("(?!)", 3, RegExMessages.getString("displayString_negLookahead"), RegExMessages.getString("additionalInfo_negLookahead")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
202 addBracketProposal("(?<=)", 4, RegExMessages.getString("displayString_posLookbehind"), RegExMessages.getString("additionalInfo_posLookbehind")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
203 addBracketProposal("(?<!)", 4, RegExMessages.getString("displayString_negLookbehind"), RegExMessages.getString("additionalInfo_negLookbehind")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
204
205 //greedy quantifiers
206 addBracketProposal("?", 1, RegExMessages.getString("displayString_quest"), RegExMessages.getString("additionalInfo_quest")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
207 addBracketProposal("*", 1, RegExMessages.getString("displayString_star"), RegExMessages.getString("additionalInfo_star")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
208 addBracketProposal("+", 1, RegExMessages.getString("displayString_plus"), RegExMessages.getString("additionalInfo_plus")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
209 addBracketProposal("{}", 1, RegExMessages.getString("displayString_exact"), RegExMessages.getString("additionalInfo_exact")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
210 addBracketProposal("{,}", 1, RegExMessages.getString("displayString_least"), RegExMessages.getString("additionalInfo_least")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
211 addBracketProposal("{,}", 1, RegExMessages.getString("displayString_count"), RegExMessages.getString("additionalInfo_count")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
212
213 //lazy quantifiers
214 addBracketProposal("??", 1, RegExMessages.getString("displayString_questLazy"), RegExMessages.getString("additionalInfo_questLazy")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
215 addBracketProposal("*?", 1, RegExMessages.getString("displayString_starLazy"), RegExMessages.getString("additionalInfo_starLazy")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
216 addBracketProposal("+?", 1, RegExMessages.getString("displayString_plusLazy"), RegExMessages.getString("additionalInfo_plusLazy")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
217 addBracketProposal("{}?", 1, RegExMessages.getString("displayString_exactLazy"), RegExMessages.getString("additionalInfo_exactLazy")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
218 addBracketProposal("{,}?", 1, RegExMessages.getString("displayString_leastLazy"), RegExMessages.getString("additionalInfo_leastLazy")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
219 addBracketProposal("{,}?", 1, RegExMessages.getString("displayString_countLazy"), RegExMessages.getString("additionalInfo_countLazy")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
220
221 //possessive quantifiers
222 addBracketProposal("?+", 1, RegExMessages.getString("displayString_questPoss"), RegExMessages.getString("additionalInfo_questPoss")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
223 addBracketProposal("*+", 1, RegExMessages.getString("displayString_starPoss"), RegExMessages.getString("additionalInfo_starPoss")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
224 addBracketProposal("++", 1, RegExMessages.getString("displayString_plusPoss"), RegExMessages.getString("additionalInfo_plusPoss")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
225 addBracketProposal("{}+", 1, RegExMessages.getString("displayString_exactPoss"), RegExMessages.getString("additionalInfo_exactPoss")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
226 addBracketProposal("{,}+", 1, RegExMessages.getString("displayString_leastPoss"), RegExMessages.getString("additionalInfo_leastPoss")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
227 addBracketProposal("{,}+", 1, RegExMessages.getString("displayString_countPoss"), RegExMessages.getString("additionalInfo_countPoss")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
228
229 //alternative
230 addBracketProposal("|", 1, RegExMessages.getString("displayString_alt"), RegExMessages.getString("additionalInfo_alt")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
231 }
232
233 fPriorityProposals.addAll(fProposals);
234 return (IContentProposal[]) fPriorityProposals.toArray(new IContentProposal[fProposals.size()]);
235 }
236
237 /**
238 * Computes applicable proposals for the replace field.
239 * @return the proposals
240 */
241 public IContentProposal[] computeReplaceProposals() {
242 if (fDocumentOffset > 0 && '$' is fExpression.charAt(fDocumentOffset - 1)) {
243 addProposal("", RegExMessages.getString("displayString_dollar"), RegExMessages.getString("additionalInfo_dollar")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
244 } else {
245 if (! fIsEscape)
246 addProposal("$", RegExMessages.getString("displayString_dollar"), RegExMessages.getString("additionalInfo_dollar")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
247 addBsProposal("\\", RegExMessages.getString("displayString_replace_cap"), RegExMessages.getString("additionalInfo_replace_cap")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
248 addBsProposal("\\", RegExMessages.getString("displayString_replace_bs"), RegExMessages.getString("additionalInfo_replace_bs")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
249 addBsProposal("\\R", RegExMessages.getString("displayString_replace_bs_R"), RegExMessages.getString("additionalInfo_replace_bs_R")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
250 addBracketProposal("\\x", 2, RegExMessages.getString("displayString_bs_x"), RegExMessages.getString("additionalInfo_bs_x")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
251 addBracketProposal("\\u", 2, RegExMessages.getString("displayString_bs_u"), RegExMessages.getString("additionalInfo_bs_u")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
252 addBsProposal("\\t", RegExMessages.getString("displayString_bs_t"), RegExMessages.getString("additionalInfo_bs_t")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
253 addBsProposal("\\n", RegExMessages.getString("displayString_replace_bs_n"), RegExMessages.getString("additionalInfo_replace_bs_n")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
254 addBsProposal("\\r", RegExMessages.getString("displayString_replace_bs_r"), RegExMessages.getString("additionalInfo_replace_bs_r")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
255 addBsProposal("\\f", RegExMessages.getString("displayString_bs_f"), RegExMessages.getString("additionalInfo_bs_f")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
256 addBsProposal("\\a", RegExMessages.getString("displayString_bs_a"), RegExMessages.getString("additionalInfo_bs_a")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
257 addBsProposal("\\e", RegExMessages.getString("displayString_bs_e"), RegExMessages.getString("additionalInfo_bs_e")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
258 addBracketProposal("\\c", 2, RegExMessages.getString("displayString_bs_c"), RegExMessages.getString("additionalInfo_bs_c")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
259 addBsProposal("\\C", RegExMessages.getString("displayString_replace_bs_C"), RegExMessages.getString("additionalInfo_replace_bs_C")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
260 }
261 fPriorityProposals.addAll(fProposals);
262 return (IContentProposal[]) fPriorityProposals.toArray(new IContentProposal[fPriorityProposals.size()]);
263 }
264
265 /**
266 * Adds a proposal.
267 *
268 * @param proposal the string to be inserted
269 * @param displayString the proposal's label
270 * @param additionalInfo the additional information
271 */
272 private void addProposal(String proposal, String displayString, String additionalInfo) {
273 fProposals.add(new Proposal(proposal, displayString, additionalInfo, proposal.length()));
274 }
275
276 /**
277 * Adds a proposal.
278 *
279 * @param proposal the string to be inserted
280 * @param cursorPosition the cursor position after insertion,
281 * relative to the start of the proposal
282 * @param displayString the proposal's label
283 * @param additionalInfo the additional information
284 */
285 private void addProposal(String proposal, int cursorPosition, String displayString, String additionalInfo) {
286 fProposals.add(new Proposal(proposal, displayString, additionalInfo, cursorPosition));
287 }
288
289 /**
290 * Adds a proposal to the priority proposals list.
291 *
292 * @param proposal the string to be inserted
293 * @param displayString the proposal's label
294 * @param additionalInfo the additional information
295 */
296 private void addPriorityProposal(String proposal, String displayString, String additionalInfo) {
297 fPriorityProposals.add(new Proposal(proposal, displayString, additionalInfo, proposal.length()));
298 }
299
300 /**
301 * Adds a proposal. Ensures that existing pre- and postfixes are not duplicated.
302 *
303 * @param proposal the string to be inserted
304 * @param cursorPosition the cursor position after insertion,
305 * relative to the start of the proposal
306 * @param displayString the proposal's label
307 * @param additionalInfo the additional information
308 */
309 private void addBracketProposal(String proposal, int cursorPosition, String displayString, String additionalInfo) {
310 String prolog= fExpression.substring(0, fDocumentOffset);
311 if (! fIsEscape && prolog.endsWith("\\") && proposal.startsWith("\\")) { //$NON-NLS-1$//$NON-NLS-2$
312 fProposals.add(new Proposal(proposal, displayString, additionalInfo, cursorPosition));
313 return;
314 }
315 for (int i= 1; i <= cursorPosition; i++) {
316 String prefix= proposal.substring(0, i);
317 if (prolog.endsWith(prefix)) {
318 String postfix= proposal.substring(cursorPosition);
319 String epilog= fExpression.substring(fDocumentOffset);
320 if (epilog.startsWith(postfix)) {
321 fPriorityProposals.add(new Proposal(proposal.substring(i, cursorPosition), displayString, additionalInfo, cursorPosition-i));
322 } else {
323 fPriorityProposals.add(new Proposal(proposal.substring(i), displayString, additionalInfo, cursorPosition-i));
324 }
325 return;
326 }
327 }
328 fProposals.add(new Proposal(proposal, displayString, additionalInfo, cursorPosition));
329 }
330
331 /**
332 * Adds a proposal that starts with a backslash.
333 * Ensures that the backslash is not repeated if already typed.
334 *
335 * @param proposal the string to be inserted
336 * @param displayString the proposal's label
337 * @param additionalInfo the additional information
338 */
339 private void addBsProposal(String proposal, String displayString, String additionalInfo) {
340 String prolog= fExpression.substring(0, fDocumentOffset);
341 int position= proposal.length();
342 // If the string already contains the backslash, do not include in the proposal
343 if (prolog.endsWith("\\")) { //$NON-NLS-1$
344 position--;
345 proposal= proposal.substring(1);
346 }
347
348 if (fIsEscape) {
349 fPriorityProposals.add(new Proposal(proposal, displayString, additionalInfo, position));
350 } else {
351 addProposal(proposal, position, displayString, additionalInfo);
352 }
353 }
354 }
355
356 /**
357 * <code>true</code> iff the processor is for the find field.
358 * <code>false</code> iff the processor is for the replace field.
359 */
360 private final bool fIsFind;
361
362
363 /**
364 * Creates a new completion proposal provider.
365 *
366 * @param isFind <code>true</code> if the provider is used for the 'find' field
367 * <code>false</code> if the provider is used for the 'replace' field
368 */
369 public FindReplaceDocumentAdapterContentProposalProvider(bool isFind) {
370 fIsFind= isFind;
371 }
372
373 /*
374 * @see dwtx.jface.fieldassist.IContentProposalProvider#getProposals(java.lang.String, int)
375 */
376 public IContentProposal [] getProposals(String contents, int position) {
377 if (fIsFind)
378 return new ProposalComputer(contents, position).computeFindProposals();
379 return new ProposalComputer(contents, position).computeReplaceProposals();
380 }
381 }