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| <title> |
| String Substitution Preferences |
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| <h1> |
| String Substitution Preferences |
| </h1> |
| <p> |
| The following preferences can be set using the <a class="command-link" |
| href= |
| 'javascript:executeCommand("org.eclipse.ui.window.preferences(preferencePageId=org.eclipse.debug.ui.StringVariablePreferencePage)")'> |
| <img src="PLUGINS_ROOT/org.eclipse.help/command_link.svg" alt= |
| "Opens the String Substitution preference page" /> <b>Run/Debug > |
| |
| String Substitution</b></a> preference page. |
| </p> |
| <p> |
| This preference page is used solely for the purpose of creating string |
| variables to be reused in other locations that accept string variable |
| substitution. |
| </p> |
| <p> |
| The platform SDK for Eclipse uses string variables in the launch dialog |
| for setting program and VM arguments for certain types of launch |
| configurations, as well as allowing substitutions for Ant targets in the |
| External Tools launch dialog. Consider the following screen shot which |
| shows the <strong>String Substitution</strong> preference page with a new |
| <em>TEST</em> string variable created. |
| </p> |
| |
| <p> |
| <img src= |
| "../../../reference/preferences/run-debug/images/ref-string_sub.PNG" alt= |
| "String Substitution Page With Example TEST Variable" /> |
| </p> |
| <p> |
| In this case the <em>TEST</em> variable does nothing, but in the 'real' |
| world it could point to a directory or program that you would like to |
| reuse the path for in configurations, etc. |
| </p> |
| <p> |
| If we now want to leverage this new variable, we can do so from the |
| launch dialog on the arguments tab (for those configurations that have a |
| standard arguments tab), by selecting the <strong>Variables...</strong> |
| |
| button for either the program or VM arguments text area. Selecting the |
| Variables button opens a dialog with a listing of all of the string |
| variables available. |
| </p> |
| <p> |
| In the following screen shot we can see the <em>TEST</em> variable |
| available in the list. |
| </p> |
| <p> |
| <img src= |
| "../../../reference/preferences/run-debug/images/ref-string_dialog.PNG" |
| alt="String Variable Selection Dialog" /> |
| </p> |
| |
| <p> |
| We can now select the <em>TEST</em> variable and insert in as an argument |
| if we wish, as shown in the following screen shot. |
| </p> |
| <p> |
| <img src= |
| "../../../reference/preferences/run-debug/images/ref-lcd_string_subbed.PNG" |
| alt="Launch Dialog With Substituted String" /> |
| </p> |
| <p> |
| The other mentioned platform use of string substitution in the External |
| Tools launch dialog, used with Ant configurations, as shown in the |
| following screen shot. |
| </p> |
| |
| <p> |
| <img src= |
| "../../../reference/preferences/run-debug/images/ref-ext_string_subbed.PNG" |
| alt="Ant Configuration Using String Substitution" /> |
| </p> |
| |
| <h3 class="related">Related concepts</h3> |
| <a href="../../../concepts/cdebugger.htm">Debugger</a><br /> |
| <a href="../../../concepts/concept-java-perspective.htm">Java |
| perspectives</a><br /> |
| <a href="../../../concepts/concept-java-views.htm">Java views</a><br /> |
| <a href="../../../concepts/clocdbug.htm">Local debugging</a><br /> |
| <a href="../../../concepts/cremdbug.htm">Remote debugging</a> |
| |
| <h3 class="related">Related tasks</h3> |
| <a href="../../../tasks/task-launching_java_program.htm">Launching a Java |
| program</a><br /> |
| <a href="../../../tasks/task-running_and_debugging.htm">Running and |
| debugging</a> |
| |
| <h3 class="related">Related reference</h3> |
| <a href= |
| "../../../reference/preferences/run-debug/ref-console.htm">Console |
| Preferences</a><br /> |
| <a href= |
| "../../../reference/preferences/java/debug/ref-installed_jres.htm">Installed |
| JREs Preferences</a><br /> |
| <a href="../../../reference/preferences/java/debug/ref-debug.htm">Java |
| Debug Preferences</a><br /> |
| <a href= |
| "../../../reference/preferences/run-debug/ref-launching.htm">Launching |
| Preferences</a><br /> |
| <a href= |
| "../../../reference/preferences/run-debug/ref-perspectives.htm">Perspectives |
| Preferences</a><br /> |
| <a href= |
| "../../../reference/preferences/run-debug/ref-run_debug.htm">Run/Debug |
| Preferences</a><br /> |
| <a href= |
| "../../../reference/preferences/run-debug/ref-view_management.htm">View |
| Management Preferences</a> |
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