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148 lines
4.4 KiB
Java
148 lines
4.4 KiB
Java
/* ========================================================================
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* PlantUML : a free UML diagram generator
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* ========================================================================
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*
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* (C) Copyright 2009-2020, Arnaud Roques
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*
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* Project Info: http://plantuml.com
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*
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* If you like this project or if you find it useful, you can support us at:
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*
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* http://plantuml.com/patreon (only 1$ per month!)
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* http://plantuml.com/paypal
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*
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* This file is part of PlantUML.
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*
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* PlantUML is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* PlantUML distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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* License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*
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*
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* Original Author: Arnaud Roques
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*
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*
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*/
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package net.sourceforge.plantuml;
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import net.sourceforge.plantuml.command.regex.Matcher2;
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import net.sourceforge.plantuml.command.regex.MyPattern;
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import net.sourceforge.plantuml.command.regex.Pattern2;
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public class UrlBuilder {
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public static enum ModeUrl {
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STRICT, ANYWHERE
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}
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private static final String S_QUOTED = "\\[\\[[%s]*" + //
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"[%g]([^%g]+)[%g]" + // Quoted part
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"(?:[%s]*\\{([^{}]*)\\})?" + // Optional tooltip
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"(?:[%s]([^%s\\{\\}\\[\\]][^\\[\\]]*))?" + // Optional label
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"[%s]*\\]\\]";
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private static final String S_ONLY_TOOLTIP = "\\[\\[[%s]*" + //
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"\\{(.*)\\}" + // Tooltip
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"[%s]*\\]\\]";
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private static final String S_ONLY_TOOLTIP_AND_LABEL = "\\[\\[[%s]*" + //
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"\\{([^{}]*)\\}" + // Tooltip
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"[%s]*" + //
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"([^\\[%s\\{\\}\\[\\]][^\\[\\]]*)" // Label
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+ "[%s]*\\]\\]";
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private static final String S_LINK_TOOLTIP_NOLABEL = "\\[\\[[%s]*" + //
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"([^\\s%g{}\\[\\]]+?)" + // Link
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"[%s]*\\{(.+)\\}" + // Tooltip
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"[%s]*\\]\\]";
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private static final String S_LINK_WITH_OPTIONAL_TOOLTIP_WITH_OPTIONAL_LABEL = "\\[\\[[%s]*" + //
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"([^%s%g\\[\\]]+?)" + // Link
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"(?:[%s]*\\{([^{}]*)\\})?" + // Optional tooltip
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"(?:[%s]([^%s\\{\\}\\[\\]][^\\[\\]]*))?" + // Optional label
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"[%s]*\\]\\]";
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public static String getRegexp() {
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return S_QUOTED + "|" + //
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S_ONLY_TOOLTIP + "|" + //
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S_ONLY_TOOLTIP_AND_LABEL + "|" + //
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S_LINK_TOOLTIP_NOLABEL + "|" + //
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S_LINK_WITH_OPTIONAL_TOOLTIP_WITH_OPTIONAL_LABEL;
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}
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private static final Pattern2 QUOTED = MyPattern.cmpile(S_QUOTED);
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private static final Pattern2 ONLY_TOOLTIP = MyPattern.cmpile(S_ONLY_TOOLTIP);
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private static final Pattern2 ONLY_TOOLTIP_AND_LABEL = MyPattern.cmpile(S_ONLY_TOOLTIP_AND_LABEL);
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private static final Pattern2 LINK_TOOLTIP_NOLABEL = MyPattern.cmpile(S_LINK_TOOLTIP_NOLABEL);
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private static final Pattern2 LINK_WITH_OPTIONAL_TOOLTIP_WITH_OPTIONAL_LABEL = MyPattern
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.cmpile(S_LINK_WITH_OPTIONAL_TOOLTIP_WITH_OPTIONAL_LABEL);
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private final String topurl;
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private ModeUrl mode;
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public UrlBuilder(String topurl, ModeUrl mode) {
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this.topurl = topurl;
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this.mode = mode;
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}
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public Url getUrl(String s) {
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Matcher2 m;
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m = QUOTED.matcher(s);
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if (matchesOrFind(m)) {
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return new Url(withTopUrl(m.group(1)), m.group(2), m.group(3));
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}
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m = ONLY_TOOLTIP.matcher(s);
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if (matchesOrFind(m)) {
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return new Url("", m.group(1), null);
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}
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m = ONLY_TOOLTIP_AND_LABEL.matcher(s);
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if (matchesOrFind(m)) {
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return new Url("", m.group(1), m.group(2));
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}
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m = LINK_TOOLTIP_NOLABEL.matcher(s);
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if (matchesOrFind(m)) {
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return new Url(withTopUrl(m.group(1)), m.group(2), null);
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}
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m = LINK_WITH_OPTIONAL_TOOLTIP_WITH_OPTIONAL_LABEL.matcher(s);
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if (matchesOrFind(m)) {
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return new Url(withTopUrl(m.group(1)), m.group(2), m.group(3));
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}
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return null;
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}
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private boolean matchesOrFind(Matcher2 m) {
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if (mode == ModeUrl.STRICT) {
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return m.matches();
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} else if (mode == ModeUrl.ANYWHERE) {
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return m.find();
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} else {
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throw new IllegalStateException();
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}
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}
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private String withTopUrl(String url) {
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if (url.startsWith("http:") == false && url.startsWith("https:") == false && url.startsWith("file:") == false
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&& topurl != null) {
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return topurl + url;
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}
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return url;
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}
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}
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