From 05c9922b30cd0dcd2a452673c2e155215d074b19 Mon Sep 17 00:00:00 2001
From: "Benjamin J. Culkin" <bjculkin@mix.wvu.edu>
Date: Tue, 5 Jun 2018 22:09:23 -0300
Subject: Templates pt. 3

Templates should now work, though there is no syntax to reference them
from rules yet

In addition, several internal things have been changed so as to improve
code quality
---
 .../parser/templates/LiveTemplateElement.java      | 60 ++++++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 src/main/java/bjc/rgens/parser/templates/LiveTemplateElement.java

(limited to 'src/main/java/bjc/rgens/parser/templates/LiveTemplateElement.java')

diff --git a/src/main/java/bjc/rgens/parser/templates/LiveTemplateElement.java b/src/main/java/bjc/rgens/parser/templates/LiveTemplateElement.java
new file mode 100644
index 0000000..2487c83
--- /dev/null
+++ b/src/main/java/bjc/rgens/parser/templates/LiveTemplateElement.java
@@ -0,0 +1,60 @@
+package bjc.rgens.parser.templates;
+
+import bjc.utils.data.BooleanToggle;
+import bjc.utils.funcdata.FunctionalList;
+
+import bjc.rgens.parser.GenerationState;
+import bjc.rgens.parser.RGrammarParser;
+import bjc.rgens.parser.elements.CaseElement;
+import bjc.rgens.parser.elements.LiteralCaseElement;
+
+import java.util.Arrays;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class LiveTemplateElement extends TemplateElement {
+	private static final Pattern INSERT_PAT = Pattern.compile("\\$@(.+?)@\\$");
+
+	public final List<List<CaseElement>> elements;
+
+	public LiveTemplateElement(String val) {
+		super(ElementType.TEMPLATE);
+
+		elements = new ArrayList<>();
+
+		Matcher mat = INSERT_PAT.matcher(val);
+		StringBuffer sb = new StringBuffer();
+
+		while(mat.find()) {
+			mat.appendReplacement(sb, "");
+			String body = mat.group(1);
+
+			FunctionalList<CaseElement> elms = (FunctionalList<CaseElement>)RGrammarParser.parseElementString(body).getLeft();
+
+			elements.add(Arrays.asList(new LiteralCaseElement(sb.toString())));
+			elements.add(elms.getInternal());
+
+			sb = new StringBuffer();
+		}
+
+		mat.appendTail(sb);
+		elements.add(Arrays.asList(new LiteralCaseElement(sb.toString())));
+	}
+
+	public void generate(GenerationState state) {
+		BooleanToggle bt = new BooleanToggle(false);
+
+		for(List<CaseElement> elmList : elements) {
+			boolean doSpacing = bt.get();
+
+			for(CaseElement elm : elmList) {
+				elm.generate(state);
+
+				if(doSpacing && elm.type.spacing)
+					state.contents.append(" ");
+			}
+		}
+	}
+}
-- 
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