refined filter and map utils

Author: holgerbrandl

src/main/kotlin/kscript/StreamUtil.kt

@@ -24,10 +24,10 @@ fun argLines(arg: String, stdinNames: List<String> = listOf("-", "stdin")): Sequ
     return BufferedReader(FileReader(inputFile)).lineSequence()
 }
 
-fun mapLines(arg: String, stdinNames: List<String> = listOf("-", "stdin"), trafo: (String) -> String) =
+fun argMap(arg: String, stdinNames: List<String> = listOf("-", "stdin"), trafo: (String) -> String) =
         argLines(arg, stdinNames).map { trafo(it) }.print()
 
-fun filterLines(arg: String, stdinNames: List<String> = listOf("-", "stdin"), trafo: (String) -> Boolean) =
+fun argFilter(arg: String, stdinNames: List<String> = listOf("-", "stdin"), trafo: (String) -> Boolean) =
         argLines(arg, stdinNames).filter { trafo(it) }.print()
 
 

src/test/kotlin/kscript/test/SupportApiTest.kt

@@ -3,18 +3,23 @@ package kscript.test
 import io.kotlintest.matchers.shouldBe
 import io.kotlintest.specs.StringSpec
 import kscript.*
+import java.io.File
 
 /**
  * @author Holger Brandl
  */
 class SupportApiTest : StringSpec() { init {
 
-    "length should return size of string" {
-        "hello".length shouldBe 5
-    }
-
     "allow to use stdin for filtering and mapping" {
         stdin.filter { "^de0[-0]*".toRegex().matches(it) }.map { it + "foo:" }.print()
     }
+
+    "length should return size of string" {
+        //        "hello".length shouldBe 5
+        //        stopIfNot("FOO"=="BAR"){"condition not met"}
+        println("current dir is " + File(".").absolutePath)
+        argMap("src/test/resources/flights_head.txt") { it.split("\t")[7] }
+        argFilter("src/test/resources/flights_head.txt") { it.split("\t")[7] == "UA" }
+    }
 }
 }