reorder

054-exit.go

@@ -0,0 +1,21 @@
+package main            // Use `os.Exit` to immediatly exit with a given
+                        // status.
+import  "os"
+
+func main() {
+    defer println("!")  // This `println` will never be reached.
+	os.Exit(3)  
+}
+
+/*
+$ go run exit.go        // If you run `exit.go` using `go run`, the exit
+exit status 3           // will be picked up by `go` and printed.
+                        
+$ go build exit.go      // By building and executing a binary you can see
+$ ./exit                // the status in the terminal
+$ echo $?
+3
+*/
+
+// == todo
+// discuss building before getting here

055-exits.go

@@ -1,14 +0,0 @@
-package main
-
-import "os"
-
-func main() {
-	os.Exit(3)
-}
-
-// $ go run xx-exit.go
-// exit status 3
-// $ go build xx-exit.go
-// $ ./xx-exit
-// $ echo $?
-// 3

tool/index.txt

@@ -24,7 +24,6 @@ recursion
 defer
 panic
 recover
-values
 pointers
 new
 structs
@@ -52,7 +51,7 @@ env
 epoch
 errors
 exec
-exits
+exit
 file-open
 file-read
 file-write

tool/renumber.go

@@ -9,8 +9,16 @@ import (
     "strings"
     "regexp"
     "os"
+    "sort"
 )
 
+func minInt(a, b int) int {
+    if (a < b) {
+        return a
+    }
+    return b
+}
+
 func main() {
     // read names of source files
     sourceNames := make([]string, 0)
@@ -33,7 +41,12 @@ func main() {
     
     // sanity check two lists
     if len(sourceNames) != len(indexNames) {
-        panic("mismatched names")
+        sort.Strings(sourceNames)
+        sort.Strings(indexNames)
+        for i := 0; i < minInt(len(sourceNames), len(indexNames)); i++ {
+            fmt.Printf("%s %s\n", sourceNames[i], indexNames[i])
+        }
+        os.Exit(1)
     }
     
     // rename some stuff