From 26412f3077698dabcdbdf6a6e40276c56a6f74b5 Mon Sep 17 00:00:00 2001
From: Silvan Jegen <s.jegen@gmail.com>
Date: Fri, 9 Dec 2016 21:12:18 +0100
Subject: Reorganize files

---
 filter/string.go | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 filter/string.go

(limited to 'filter')

diff --git a/filter/string.go b/filter/string.go
new file mode 100644
index 0000000..cb44d75
--- /dev/null
+++ b/filter/string.go
@@ -0,0 +1,56 @@
+package filter
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+
+	"github.com/Shugyousha/stasher/work"
+)
+
+type StringFilter struct {
+	FilterFuncMap map[string]func(string) string
+}
+
+func NewStringFilter(ffmap map[string]func(string) string) *StringFilter {
+	return &StringFilter{FilterFuncMap: ffmap}
+}
+
+func (f *StringFilter) Filter(w *work.Work) *work.Work {
+	dec := json.NewDecoder(bytes.NewReader(w.Data))
+	jm := make(map[string]string, 10)
+
+	err := dec.Decode(&jm)
+	if err == io.EOF {
+		fmt.Printf("EOF jm: %v\n", jm)
+		return w
+	}
+	if err != nil {
+		fmt.Printf("Error when decoding JSON: %q\n", err)
+		w.Err = err
+		return w
+	}
+
+	changed := false
+	for field, ff := range f.FilterFuncMap {
+		str, ok := jm[field]
+		if !ok {
+			continue
+		}
+
+		jm[field] = ff(str)
+		changed = true
+	}
+	if changed {
+		bs, err := json.Marshal(jm)
+		if err != nil {
+			fmt.Printf("Error when marshalling JSON: %q\n", err)
+			w.Err = err
+		} else {
+			w.Data = bs
+		}
+	}
+
+	return w
+}
-- 
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