Keep unknown commands intact

This seems to be a more desirable behavior (see issue#8).
tomtung · Feb 24, 2018 · 6879cbb · 6879cbb
1 parent a3610c3
commit 6879cbb
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diff --git a/src/main/scala/com/github/tomtung/latex2unicode/LaTeX2Unicode.scala b/src/main/scala/com/github/tomtung/latex2unicode/LaTeX2Unicode.scala
@@ -95,7 +95,11 @@ object LaTeX2Unicode {
       builder.result()
     }
 
-    val block: Parser[String] = P(name.flatMap(s => nameToParser.getOrElse(s, PassWithEmptyString)))
+    val block: Parser[String] = {
+      val knownCommandBlock = name.filter(nameToParser.contains).flatMap(nameToParser)
+      val unknownCommand = name
+      P(knownCommandBlock | unknownCommand)
+    }
   }
 
   private val block: Parser[String] = P(spacesBlock | literalCharsBlock | bracketBlock | command.block)

diff --git a/src/test/scala/com/github/tomtung/latex2unicode/Latex2UnicodeTest.scala b/src/test/scala/com/github/tomtung/latex2unicode/Latex2UnicodeTest.scala
@@ -159,4 +159,9 @@ class LaTeX2UnicodeTest extends FunSuite {
     LaTeX2Unicode.parse("\\frac\n\n{}{}") shouldBe a[Failure]
   }
 
+  test("Unknown commands") {
+    val str = "\\this \\is \\a \\test"
+    LaTeX2Unicode.convert(str) shouldBe str
+  }
+
 }