diff options
Diffstat (limited to 'plugins/org.eclipse.net4j.util.ui/src/org/eclipse/net4j/util/ui/proposals/RegExContentProposalProvider.java')
| -rw-r--r-- | plugins/org.eclipse.net4j.util.ui/src/org/eclipse/net4j/util/ui/proposals/RegExContentProposalProvider.java | 427 |
1 files changed, 0 insertions, 427 deletions
diff --git a/plugins/org.eclipse.net4j.util.ui/src/org/eclipse/net4j/util/ui/proposals/RegExContentProposalProvider.java b/plugins/org.eclipse.net4j.util.ui/src/org/eclipse/net4j/util/ui/proposals/RegExContentProposalProvider.java deleted file mode 100644 index b8d76d485a..0000000000 --- a/plugins/org.eclipse.net4j.util.ui/src/org/eclipse/net4j/util/ui/proposals/RegExContentProposalProvider.java +++ /dev/null @@ -1,427 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2006 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ - -package org.eclipse.net4j.util.ui.proposals; - -import org.eclipse.jface.fieldassist.IContentProposal; -import org.eclipse.jface.fieldassist.IContentProposalProvider; - -import java.util.ArrayList; - -/** - * Content assist proposal provider for regular expressions. - * <p> - * Note: Replaces <code>RegExContentAssistProcessor</code> which was introduced in 3.0. - * </p> - * Copied from org.eclipse.ui.texteditor.RegExContentProposalProvider. - * <p> - * Needed by org.eclipse.mylyn.internal.team.ui.preferences.workaround.MylynTeamPreferencePage. - * <p> - * TODO Ask platform guys to open this API - * - * @since 3.2 - */ -public class RegExContentProposalProvider implements IContentProposalProvider -{ - /** - * Proposal computer. - */ - private static class ProposalComputer - { - private static class Proposal implements IContentProposal - { - private String fContent; - - private String fLabel; - - private String fDescription; - - private int fCursorPosition; - - Proposal(String content, String label, String description, int cursorPosition) - { - fContent = content; - fLabel = label; - fDescription = description; - fCursorPosition = cursorPosition; - } - - public String getContent() - { - return fContent; - } - - public String getLabel() - { - return fLabel; - } - - public String getDescription() - { - return fDescription; - } - - public int getCursorPosition() - { - return fCursorPosition; - } - } - - /** - * The whole regular expression. - */ - private final String fExpression; - - /** - * The document offset. - */ - private final int fDocumentOffset; - - /** - * The high-priority proposals. - */ - private final ArrayList<Proposal> fPriorityProposals; - - /** - * The low-priority proposals. - */ - private final ArrayList<Proposal> fProposals; - - /** - * <code>true</code> iff <code>fExpression</code> ends with an open escape. - */ - private final boolean fIsEscape; - - /** - * Creates a new Proposal Computer. - * - * @param contents - * the contents of the subject control - * @param position - * the cursor position - */ - public ProposalComputer(String contents, int position) - { - fExpression = contents; - fDocumentOffset = position; - fPriorityProposals = new ArrayList<Proposal>(); - fProposals = new ArrayList<Proposal>(); - - boolean isEscape = false; - esc: for (int i = position - 1; i >= 0; i--) - { - if (fExpression.charAt(i) == '\\') - isEscape = !isEscape; - else - break esc; - } - - fIsEscape = isEscape; - } - - /** - * Computes applicable proposals for the find field. - * - * @return the proposals - */ - public IContentProposal[] computeFindProposals() - { - // characters - addBsProposal("\\\\", RegExMessages.displayString_bs_bs, RegExMessages.additionalInfo_bs_bs); //$NON-NLS-1$ - addBracketProposal("\\0", 2, RegExMessages.displayString_bs_0, RegExMessages.additionalInfo_bs_0); //$NON-NLS-1$ - addBracketProposal("\\x", 2, RegExMessages.displayString_bs_x, RegExMessages.additionalInfo_bs_x); //$NON-NLS-1$ - addBracketProposal("\\u", 2, RegExMessages.displayString_bs_u, RegExMessages.additionalInfo_bs_u); //$NON-NLS-1$ - addBsProposal("\\t", RegExMessages.displayString_bs_t, RegExMessages.additionalInfo_bs_t); //$NON-NLS-1$ - addBsProposal("\\n", RegExMessages.displayString_bs_n, RegExMessages.additionalInfo_bs_n); //$NON-NLS-1$ - addBsProposal("\\r", RegExMessages.displayString_bs_r, RegExMessages.additionalInfo_bs_r); //$NON-NLS-1$ - addBsProposal("\\f", RegExMessages.displayString_bs_f, RegExMessages.additionalInfo_bs_f); //$NON-NLS-1$ - addBsProposal("\\a", RegExMessages.displayString_bs_a, RegExMessages.additionalInfo_bs_a); //$NON-NLS-1$ - addBsProposal("\\e", RegExMessages.displayString_bs_e, RegExMessages.additionalInfo_bs_e); //$NON-NLS-1$ - addBsProposal("\\c", RegExMessages.displayString_bs_c, RegExMessages.additionalInfo_bs_c); //$NON-NLS-1$ - - if (!fIsEscape) addBracketProposal(".", 1, RegExMessages.displayString_dot, RegExMessages.additionalInfo_dot); //$NON-NLS-1$ - addBsProposal("\\d", RegExMessages.displayString_bs_d, RegExMessages.additionalInfo_bs_d); //$NON-NLS-1$ - addBsProposal("\\D", RegExMessages.displayString_bs_D, RegExMessages.additionalInfo_bs_D); //$NON-NLS-1$ - addBsProposal("\\s", RegExMessages.displayString_bs_s, RegExMessages.additionalInfo_bs_s); //$NON-NLS-1$ - addBsProposal("\\S", RegExMessages.displayString_bs_S, RegExMessages.additionalInfo_bs_S); //$NON-NLS-1$ - addBsProposal("\\w", RegExMessages.displayString_bs_w, RegExMessages.additionalInfo_bs_w); //$NON-NLS-1$ - addBsProposal("\\W", RegExMessages.displayString_bs_W, RegExMessages.additionalInfo_bs_W); //$NON-NLS-1$ - - // back reference - addBsProposal("\\", RegExMessages.displayString_bs_i, RegExMessages.additionalInfo_bs_i); //$NON-NLS-1$ - - // quoting - addBsProposal("\\", RegExMessages.displayString_bs, RegExMessages.additionalInfo_bs); //$NON-NLS-1$ - addBsProposal("\\Q", RegExMessages.displayString_bs_Q, RegExMessages.additionalInfo_bs_Q); //$NON-NLS-1$ - addBsProposal("\\E", RegExMessages.displayString_bs_E, RegExMessages.additionalInfo_bs_E); //$NON-NLS-1$ - - // character sets - if (!fIsEscape) - { - addBracketProposal("[]", 1, RegExMessages.displayString_set, RegExMessages.additionalInfo_set); //$NON-NLS-1$ - addBracketProposal("[^]", 2, RegExMessages.displayString_setExcl, RegExMessages.additionalInfo_setExcl); //$NON-NLS-1$ - addBracketProposal("[-]", 1, RegExMessages.displayString_setRange, RegExMessages.additionalInfo_setRange); //$NON-NLS-1$ - addProposal("&&", RegExMessages.displayString_setInter, RegExMessages.additionalInfo_setInter); //$NON-NLS-1$ - } - if (!fIsEscape && fDocumentOffset > 0 && fExpression.charAt(fDocumentOffset - 1) == '\\') - { - addProposal("\\p{}", 3, RegExMessages.displayString_posix, RegExMessages.additionalInfo_posix); //$NON-NLS-1$ - addProposal("\\P{}", 3, RegExMessages.displayString_posixNot, RegExMessages.additionalInfo_posixNot); //$NON-NLS-1$ - } - else - { - addBracketProposal("\\p{}", 3, RegExMessages.displayString_posix, RegExMessages.additionalInfo_posix); //$NON-NLS-1$ - addBracketProposal("\\P{}", 3, RegExMessages.displayString_posixNot, RegExMessages.additionalInfo_posixNot); //$NON-NLS-1$ - } - - // boundary matchers - if (fDocumentOffset == 0) - { - addPriorityProposal("^", RegExMessages.displayString_start, RegExMessages.additionalInfo_start); //$NON-NLS-1$ - } - else if (fDocumentOffset == 1 && fExpression.charAt(0) == '^') - { - addBracketProposal("^", 1, RegExMessages.displayString_start, RegExMessages.additionalInfo_start); //$NON-NLS-1$ - } - if (fDocumentOffset == fExpression.length()) - { - addProposal("$", RegExMessages.displayString_end, RegExMessages.additionalInfo_end); //$NON-NLS-1$ - } - addBsProposal("\\b", RegExMessages.displayString_bs_b, RegExMessages.additionalInfo_bs_b); //$NON-NLS-1$ - addBsProposal("\\B", RegExMessages.displayString_bs_B, RegExMessages.additionalInfo_bs_B); //$NON-NLS-1$ - addBsProposal("\\A", RegExMessages.displayString_bs_A, RegExMessages.additionalInfo_bs_A); //$NON-NLS-1$ - addBsProposal("\\G", RegExMessages.displayString_bs_G, RegExMessages.additionalInfo_bs_G); //$NON-NLS-1$ - addBsProposal("\\Z", RegExMessages.displayString_bs_Z, RegExMessages.additionalInfo_bs_Z); //$NON-NLS-1$ - addBsProposal("\\z", RegExMessages.displayString_bs_z, RegExMessages.additionalInfo_bs_z); //$NON-NLS-1$ - - if (!fIsEscape) - { - // capturing groups - addBracketProposal("()", 1, RegExMessages.displayString_group, RegExMessages.additionalInfo_group); //$NON-NLS-1$ - - // flags - addBracketProposal("(?)", 2, RegExMessages.displayString_flag, RegExMessages.additionalInfo_flag); //$NON-NLS-1$ - addBracketProposal("(?:)", 3, RegExMessages.displayString_flagExpr, RegExMessages.additionalInfo_flagExpr); //$NON-NLS-1$ - - // non-capturing group - addBracketProposal("(?:)", 3, RegExMessages.displayString_nonCap, RegExMessages.additionalInfo_nonCap); //$NON-NLS-1$ - addBracketProposal("(?>)", 3, RegExMessages.displayString_atomicCap, RegExMessages.additionalInfo_atomicCap); //$NON-NLS-1$ - - // lookaraound - addBracketProposal( - "(?=)", 3, RegExMessages.displayString_posLookahead, RegExMessages.additionalInfo_posLookahead); //$NON-NLS-1$ - addBracketProposal( - "(?!)", 3, RegExMessages.displayString_negLookahead, RegExMessages.additionalInfo_negLookahead); //$NON-NLS-1$ - addBracketProposal( - "(?<=)", 4, RegExMessages.displayString_posLookbehind, RegExMessages.additionalInfo_posLookbehind); //$NON-NLS-1$ - addBracketProposal( - "(?<!)", 4, RegExMessages.displayString_negLookbehind, RegExMessages.additionalInfo_negLookbehind); //$NON-NLS-1$ - - // greedy quantifiers - addBracketProposal("?", 1, RegExMessages.displayString_quest, RegExMessages.additionalInfo_quest); //$NON-NLS-1$ - addBracketProposal("*", 1, RegExMessages.displayString_star, RegExMessages.additionalInfo_star); //$NON-NLS-1$ - addBracketProposal("+", 1, RegExMessages.displayString_plus, RegExMessages.additionalInfo_plus); //$NON-NLS-1$ - addBracketProposal("{}", 1, RegExMessages.displayString_exact, RegExMessages.additionalInfo_exact); //$NON-NLS-1$ - addBracketProposal("{,}", 1, RegExMessages.displayString_least, RegExMessages.additionalInfo_least); //$NON-NLS-1$ - addBracketProposal("{,}", 1, RegExMessages.displayString_count, RegExMessages.additionalInfo_count); //$NON-NLS-1$ - - // lazy quantifiers - addBracketProposal("??", 1, RegExMessages.displayString_questLazy, RegExMessages.additionalInfo_questLazy); //$NON-NLS-1$ - addBracketProposal("*?", 1, RegExMessages.displayString_starLazy, RegExMessages.additionalInfo_starLazy); //$NON-NLS-1$ - addBracketProposal("+?", 1, RegExMessages.displayString_plusLazy, RegExMessages.additionalInfo_plusLazy); //$NON-NLS-1$ - addBracketProposal("{}?", 1, RegExMessages.displayString_exactLazy, RegExMessages.additionalInfo_exactLazy); //$NON-NLS-1$ - addBracketProposal("{,}?", 1, RegExMessages.displayString_leastLazy, RegExMessages.additionalInfo_leastLazy); //$NON-NLS-1$ - addBracketProposal("{,}?", 1, RegExMessages.displayString_countLazy, RegExMessages.additionalInfo_countLazy); //$NON-NLS-1$ - - // possessive quantifiers - addBracketProposal("?+", 1, RegExMessages.displayString_questPoss, RegExMessages.additionalInfo_questPoss); //$NON-NLS-1$ - addBracketProposal("*+", 1, RegExMessages.displayString_starPoss, RegExMessages.additionalInfo_starPoss); //$NON-NLS-1$ - addBracketProposal("++", 1, RegExMessages.displayString_plusPoss, RegExMessages.additionalInfo_plusPoss); //$NON-NLS-1$ - addBracketProposal("{}+", 1, RegExMessages.displayString_exactPoss, RegExMessages.additionalInfo_exactPoss); //$NON-NLS-1$ - addBracketProposal("{,}+", 1, RegExMessages.displayString_leastPoss, RegExMessages.additionalInfo_leastPoss); //$NON-NLS-1$ - addBracketProposal("{,}+", 1, RegExMessages.displayString_countPoss, RegExMessages.additionalInfo_countPoss); //$NON-NLS-1$ - - // alternative - addBracketProposal("|", 1, RegExMessages.displayString_alt, RegExMessages.additionalInfo_alt); //$NON-NLS-1$ - } - - fPriorityProposals.addAll(fProposals); - return fPriorityProposals.toArray(new IContentProposal[fProposals.size()]); - } - - /** - * Computes applicable proposals for the replace field. - * - * @return the proposals - */ - public IContentProposal[] computeReplaceProposals() - { - if (fDocumentOffset > 0 && '$' == fExpression.charAt(fDocumentOffset - 1)) - { - addProposal("", RegExMessages.displayString_dollar, RegExMessages.additionalInfo_dollar); //$NON-NLS-1$ - } - else - { - addProposal("$", RegExMessages.displayString_dollar, RegExMessages.additionalInfo_dollar); //$NON-NLS-1$ - addBsProposal("\\", RegExMessages.displayString_replace_bs, RegExMessages.additionalInfo_replace_bs); //$NON-NLS-1$ - addProposal("\t", RegExMessages.displayString_tab, RegExMessages.additionalInfo_tab); //$NON-NLS-1$ - } - return fProposals.toArray(new IContentProposal[fProposals.size()]); - } - - /** - * Adds a proposal. - * - * @param proposal - * the string to be inserted - * @param displayString - * the proposal's label - * @param additionalInfo - * the additional information - */ - private void addProposal(String proposal, String displayString, String additionalInfo) - { - fProposals.add(new Proposal(proposal, displayString, additionalInfo, proposal.length())); - } - - /** - * Adds a proposal. - * - * @param proposal - * the string to be inserted - * @param cursorPosition - * the cursor position after insertion, relative to the start of the proposal - * @param displayString - * the proposal's label - * @param additionalInfo - * the additional information - */ - private void addProposal(String proposal, int cursorPosition, String displayString, String additionalInfo) - { - fProposals.add(new Proposal(proposal, displayString, additionalInfo, cursorPosition)); - } - - /** - * Adds a proposal to the priority proposals list. - * - * @param proposal - * the string to be inserted - * @param displayString - * the proposal's label - * @param additionalInfo - * the additional information - */ - private void addPriorityProposal(String proposal, String displayString, String additionalInfo) - { - fPriorityProposals.add(new Proposal(proposal, displayString, additionalInfo, proposal.length())); - } - - /** - * Adds a proposal. Ensures that existing pre- and postfixes are not duplicated. - * - * @param proposal - * the string to be inserted - * @param cursorPosition - * the cursor position after insertion, relative to the start of the proposal - * @param displayString - * the proposal's label - * @param additionalInfo - * the additional information - */ - private void addBracketProposal(String proposal, int cursorPosition, String displayString, String additionalInfo) - { - String prolog = fExpression.substring(0, fDocumentOffset); - if (!fIsEscape && prolog.endsWith("\\") && proposal.startsWith("\\")) { //$NON-NLS-1$//$NON-NLS-2$ - fProposals.add(new Proposal(proposal, displayString, additionalInfo, cursorPosition)); - return; - } - for (int i = 1; i <= cursorPosition; i++) - { - String prefix = proposal.substring(0, i); - if (prolog.endsWith(prefix)) - { - String postfix = proposal.substring(cursorPosition); - String epilog = fExpression.substring(fDocumentOffset); - if (epilog.startsWith(postfix)) - { - fPriorityProposals.add(new Proposal(proposal.substring(i, cursorPosition), displayString, additionalInfo, - cursorPosition - i)); - } - else - { - fPriorityProposals.add(new Proposal(proposal.substring(i), displayString, additionalInfo, cursorPosition - - i)); - } - return; - } - } - fProposals.add(new Proposal(proposal, displayString, additionalInfo, cursorPosition)); - } - - /** - * Adds a proposal that starts with a backslash. Ensures that the backslash is not repeated if already typed. - * - * @param proposal - * the string to be inserted - * @param displayString - * the proposal's label - * @param additionalInfo - * the additional information - */ - private void addBsProposal(String proposal, String displayString, String additionalInfo) - { - String prolog = fExpression.substring(0, fDocumentOffset); - int position = proposal.length(); - // If the string already contains the backslash, do not include in - // the proposal - if (prolog.endsWith("\\")) { //$NON-NLS-1$ - position--; - proposal = proposal.substring(1); - } - - if (fIsEscape) - { - fPriorityProposals.add(new Proposal(proposal, displayString, additionalInfo, position)); - } - else - { - addProposal(proposal, position, displayString, additionalInfo); - } - } - } - - /** - * <code>true</code> iff the processor is for the find field. <code>false</code> iff the processor is for the - * replace field. - */ - private final boolean fIsFind; - - /** - * Creates a new completion proposal provider. - * - * @param isFind - * <code>true</code> if the provider is used for the 'find' field <code>false</code> if the provider is - * used for the 'reaplce' field - */ - public RegExContentProposalProvider(boolean isFind) - { - fIsFind = isFind; - } - - /* - * @see org.eclipse.jface.fieldassist.IContentProposalProvider#getProposals(java.lang.String, int) - */ - public IContentProposal[] getProposals(String contents, int position) - { - if (fIsFind) return new ProposalComputer(contents, position).computeFindProposals(); - return new ProposalComputer(contents, position).computeReplaceProposals(); - } -} |