SHS/stdlib/string.go

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2020-06-29 17:06:27 -07:00
/* SHS: Syntactically Homogeneous Shell
* Copyright (C) 2019 Aidan Hahn
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package stdlib
import (
"fmt"
"gitlab.com/whom/shs/ast"
"gitlab.com/whom/shs/log"
)
func concat(in *ast.Token, vt ast.VarTable, ft ast.FuncTable) *ast.Token {
in = in.Eval(ft, vt)
var res string
for i := in; i != nil; i = i.Next {
if i.Tag == ast.LIST {
log.Log(log.ERR, "Not concatenating list", "conc")
log.Log(log.DEBUG, "Try using the expand operator (...)", "conc")
continue
}
res += i.Value()
}
t := &ast.Token{Tag: ast.STRING}
t.Set(res)
return t
}
func print_str(in *ast.Token, vt ast.VarTable, ft ast.FuncTable) *ast.Token {
fmt.Println(in.Eval(ft, vt))
return nil
}