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go-library/vendor/github.com/gogf/gf/v2/util/gtag/gtag_func.go

66 lines
1.6 KiB

// Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
//
// This Source Code Form is subject to the terms of the MIT License.
// If a copy of the MIT was not distributed with this file,
// You can obtain one at https://github.com/gogf/gf.
package gtag
import (
"regexp"
"github.com/gogf/gf/v2/errors/gerror"
)
var (
data = make(map[string]string)
regex = regexp.MustCompile(`\{(.+?)\}`)
)
// Set sets tag content for specified name.
// Note that it panics if `name` already exists.
func Set(name, value string) {
if _, ok := data[name]; ok {
panic(gerror.Newf(`value for tag name "%s" already exists`, name))
}
data[name] = value
}
// SetOver performs as Set, but it overwrites the old value if `name` already exists.
func SetOver(name, value string) {
data[name] = value
}
// Sets sets multiple tag content by map.
func Sets(m map[string]string) {
for k, v := range m {
Set(k, v)
}
}
// SetsOver performs as Sets, but it overwrites the old value if `name` already exists.
func SetsOver(m map[string]string) {
for k, v := range m {
SetOver(k, v)
}
}
// Get retrieves and returns the stored tag content for specified name.
func Get(name string) string {
return data[name]
}
// Parse parses and returns the content by replacing all tag name variable to
// its content for given `content`.
// Eg:
// gtag.Set("demo", "content")
// Parse(`This is {demo}`) -> `This is content`.
func Parse(content string) string {
return regex.ReplaceAllStringFunc(content, func(s string) string {
if v, ok := data[s[1:len(s)-1]]; ok {
return v
}
return s
})
}