From 9eb556032018b7d3eea53c1b0bbec255d780db8c Mon Sep 17 00:00:00 2001
From: xiaoqidun <xiaoqidun@gmail.com>
Date: Thu, 6 Sep 2018 15:26:24 +0800
Subject: [PATCH] GoINI

---
 goini.go | 193 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 193 insertions(+)
 create mode 100644 goini.go

diff --git a/goini.go b/goini.go
new file mode 100644
index 0000000..29cba73
--- /dev/null
+++ b/goini.go
@@ -0,0 +1,193 @@
+package goini
+
+import (
+	"bytes"
+	"io/ioutil"
+	"regexp"
+	"strconv"
+	"strings"
+)
+
+type GoINI struct {
+	data        []byte
+	dataMap     map[string]map[string]string
+	nameList    []string
+	dataKeyList map[string][]string
+	commonField string
+}
+
+func NewGoINI() GoINI {
+	return GoINI{
+		commonField: "BuiltCommon",
+	}
+}
+func (ini *GoINI) String() string {
+	var iniLines []string
+	for _, name := range ini.GetNames("") {
+		if name != ini.commonField {
+			if len(iniLines) < 1 {
+				iniLines = append(iniLines, "["+name+"]")
+			} else {
+				iniLines = append(iniLines, "\n["+name+"]")
+			}
+		}
+		for _, key := range ini.GetNameKeys(name, "") {
+			nameValue := ini.GetString(name, key, "")
+			nameValueLen := len(nameValue)
+			if nameValueLen >= 2 &&
+				((nameValue[0] == 34 && nameValue[nameValueLen-1] == 34) ||
+					(nameValue[0] == 39 && nameValue[nameValueLen-1] == 39) ||
+					(nameValue[0] == 96 && nameValue[nameValueLen-1] == 96)) {
+				tag := `"`
+				if nameValue[0] == 34 {
+					tag = "`"
+				}
+				iniLines = append(iniLines, key+" = "+tag+nameValue+tag)
+			} else {
+				iniLines = append(iniLines, key+" = "+nameValue)
+			}
+		}
+	}
+	return strings.Join(iniLines, "\n")
+}
+func (ini *GoINI) SetData(fileData []byte) {
+	ini.data = bytes.TrimSpace(fileData)
+}
+func (ini *GoINI) LoadFile(fileName string) error {
+	b, err := ioutil.ReadFile(fileName)
+	if err != nil {
+		return err
+	}
+	ini.data = bytes.TrimSpace(b)
+	return nil
+}
+func (ini *GoINI) ParseIni() {
+	currentName := ini.commonField
+	iniData := make(map[string]map[string]string)
+	iniData[currentName] = make(map[string]string)
+	ini.nameList = append(ini.nameList, currentName)
+	ini.dataKeyList = make(map[string][]string)
+	for _, v := range bytes.Split(ini.data, []byte("\n")) {
+		line := bytes.TrimSpace(v)
+		lineLen := len(line)
+		if line == nil || lineLen < 3 ||
+			line[0] == 35 || line[0] == 59 {
+			continue
+		}
+		if line[0] == 91 && line[lineLen-1] == 93 {
+			name := bytes.TrimSpace(line[1 : lineLen-1])
+			if name != nil {
+				currentName = string(name)
+				if _, ok := iniData[currentName]; !ok {
+					iniData[currentName] = make(map[string]string)
+					ini.nameList = append(ini.nameList, currentName)
+				}
+			}
+			continue
+		}
+		split := bytes.IndexByte(line, 61)
+		if split == -1 {
+			split = bytes.IndexByte(line, 32)
+			if split == -1 {
+				continue
+			}
+		}
+		key := bytes.TrimSpace(line[0:split])
+		value := bytes.TrimSpace(line[split+1:])
+		valueLen := len(value)
+		keyStr, valueStr := string(key), string(value)
+		if keyStr == "" {
+			continue
+		}
+		if _, ok := iniData[currentName][keyStr]; ok {
+			continue
+		}
+		ini.dataKeyList[currentName] = append(ini.dataKeyList[currentName], keyStr)
+		if value == nil {
+			iniData[currentName][keyStr] = ""
+			continue
+		}
+		if valueLen >= 2 &&
+			((value[0] == 34 && value[valueLen-1] == 34) ||
+				(value[0] == 39 && value[valueLen-1] == 39) ||
+				(value[0] == 96 && value[valueLen-1] == 96)) {
+			iniData[currentName][keyStr] = string(value[1 : valueLen-1])
+			continue
+		}
+		iniData[currentName][keyStr] = valueStr
+	}
+	ini.dataMap = iniData
+}
+func (ini *GoINI) GetNames(match string) []string {
+	if match == "" {
+		return ini.nameList
+	}
+	var matchNameList []string
+	for _, name := range ini.nameList {
+		if b, e := regexp.MatchString(match, name); e == nil && b {
+			matchNameList = append(matchNameList, name)
+		}
+	}
+	return matchNameList
+}
+func (ini *GoINI) GetNameKeys(name string, match string) []string {
+	var keyList []string
+	if name == "" {
+		name = ini.commonField
+	}
+	if keyList, ok := ini.dataKeyList[name]; ok {
+		if match == "" {
+			return keyList
+		}
+		var matchKeyList []string
+		for _, key := range keyList {
+			if b, e := regexp.MatchString(match, key); e == nil && b {
+				matchKeyList = append(matchKeyList, key)
+			}
+		}
+		return matchKeyList
+	}
+	return keyList
+}
+func (ini *GoINI) GetBool(name string, key string, value bool) bool {
+	boolStr := ini.GetString(name, key, "")
+	switch strings.ToLower(boolStr) {
+	case "y", "yes", "on":
+		return true
+	case "n", "no", "off":
+		return false
+	}
+	if b, e := strconv.ParseBool(boolStr); e == nil {
+		return b
+	}
+	return value
+}
+func (ini *GoINI) GetInt64(name string, key string, value int64) int64 {
+	int64Str := ini.GetString(name, key, "")
+	if i, e := strconv.ParseInt(int64Str, 10, 64); e == nil {
+		return i
+	}
+	return value
+}
+func (ini *GoINI) GetString(name string, key string, value string) string {
+	if 0 == len(name) {
+		name = ini.commonField
+	}
+	if pos := strings.Index(key, "."); pos != -1 {
+		name = key[:pos]
+		key = key[pos+1:]
+	}
+	if v, ok := ini.dataMap[name]; ok {
+		if vv, ok := v[key]; ok {
+			return vv
+		}
+	}
+	return value
+}
+func (ini *GoINI) GetFloat64(name string, key string, value float64) float64 {
+	float64Str := ini.GetString(name, key, "")
+	if f, e := strconv.ParseFloat(float64Str, 64); e == nil {
+		return f
+	}
+	return value
+}