Move HTML path parsing rules into their own class

1 files changed, 23 insertions, 0 deletions

diff --git a/src/main/java/org/zwobble/mammoth/styles/parsing/Parsing.java b/src/main/java/org/zwobble/mammoth/styles/parsing/Parsing.java
new file mode 100644
index 0000000..761e7b8
--- /dev/null
+++ b/src/main/java/org/zwobble/mammoth/styles/parsing/Parsing.java
@@ -0,0 +1,23 @@
+package org.zwobble.mammoth.styles.parsing;
+
+import org.parboiled.BaseParser;
+import org.parboiled.Parboiled;
+import org.parboiled.Rule;
+import org.parboiled.parserunners.ReportingParseRunner;
+import org.parboiled.support.ParsingResult;
+
+import java.util.function.Function;
+
+public class Parsing {
+    public static <T, U extends BaseParser<T>> T parse(Class<U> parserType, Function<U, Rule> rule, String value) {
+        U parser = Parboiled.createParser(parserType);
+        ReportingParseRunner<T> runner = new ReportingParseRunner<>(rule.apply(parser));
+        ParsingResult<T> result = runner.run(value);
+        if (result.hasErrors()) {
+            // TODO: wrap in result
+            throw new RuntimeException("Parse error");
+        } else {
+            return result.valueStack.peek();
+        }
+    }
+}