mirror of https://github.com/Hilbis/Hilbish
70 lines
1.5 KiB
Go
70 lines
1.5 KiB
Go
package util
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import (
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"strings"
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"os/user"
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rt "github.com/arnodel/golua/runtime"
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)
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// SetField sets a field in a table, adding docs for it.
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// It is accessible via the __docProp metatable. It is a table of the names of the fields.
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func SetField(module *rt.Table, field string, value rt.Value) {
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module.Set(rt.StringValue(field), value)
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}
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// HandleStrCallback handles function parameters for Go functions which take
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// a string and a closure.
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func HandleStrCallback(t *rt.Thread, c *rt.GoCont) (string, *rt.Closure, error) {
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if err := c.CheckNArgs(2); err != nil {
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return "", nil, err
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}
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name, err := c.StringArg(0)
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if err != nil {
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return "", nil, err
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}
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cb, err := c.ClosureArg(1)
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if err != nil {
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return "", nil, err
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}
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return name, cb, err
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}
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// ForEach loops through a Lua table.
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func ForEach(tbl *rt.Table, cb func(key rt.Value, val rt.Value)) {
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nextVal := rt.NilValue
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for {
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key, val, _ := tbl.Next(nextVal)
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if key == rt.NilValue {
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break
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}
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nextVal = key
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cb(key, val)
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}
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}
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// ExpandHome expands ~ (tilde) in the path, changing it to the user home
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// directory.
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func ExpandHome(path string) string {
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if strings.HasPrefix(path, "~") {
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curuser, _ := user.Current()
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homedir := curuser.HomeDir
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return strings.Replace(path, "~", homedir, 1)
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}
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return path
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}
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// AbbrevHome changes the user's home directory in the path string to ~ (tilde)
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func AbbrevHome(path string) string {
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curuser, _ := user.Current()
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if strings.HasPrefix(path, curuser.HomeDir) {
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return "~" + strings.TrimPrefix(path, curuser.HomeDir)
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}
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return path
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}
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