133 lines
3.4 KiB
Go
133 lines
3.4 KiB
Go
/* SHS: Syntactically Homogeneous Shell
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* Copyright (C) 2019 Aidan Hahn
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package stdlib
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import (
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"os"
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"git.callpipe.com/aidan/shs/ast"
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)
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func GenFuncTable() ast.FuncTable {
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var stdlib ast.FuncTable
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stdlib = &map[string]*ast.Function{
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"...": &ast.Function{
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Function: expand,
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Name: "...",
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TimesCalled: 0,
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Args: 1,
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},
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"append": &ast.Function{
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Function: l_append,
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Name: "append",
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TimesCalled: 0,
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Args: -1,
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},
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"+": &ast.Function{
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Function: add,
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Name: "add",
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TimesCalled: 0,
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Args: -1,
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},
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"-": &ast.Function{
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Function: sub,
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Name: "sub",
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TimesCalled: 0,
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Args: -1,
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},
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"*": &ast.Function{
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Function: mult,
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Name: "mult",
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TimesCalled: 0,
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Args: -1,
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},
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"/": &ast.Function{
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Function: div,
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Name: "div",
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TimesCalled: 0,
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Args: -1,
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},
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"l": &ast.Function{
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Function: call,
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Name: "call",
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TimesCalled: 0,
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Args: -1,
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},
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"bg": &ast.Function{
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Function: bgcall,
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Name: "background call",
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TimesCalled: 0,
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Args: -1,
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},
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"fg": &ast.Function{
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Function: fg,
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Name: "foreground",
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TimesCalled: 0,
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Args: 0,
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},
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"cd": &ast.Function{
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Function: cd,
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Name: "changedir",
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TimesCalled: 0,
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Args: 1,
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},
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"$": &ast.Function{
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Function: read_cmd,
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Name: "read cmd",
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TimesCalled: 0,
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Args: -1,
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},
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"concat": &ast.Function{
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Function: concat,
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Name:"concatenate",
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TimesCalled: 0,
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Args: -1,
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},
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"print": &ast.Function{
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Function:print_str,
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Name: "print",
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TimesCalled: 0,
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Args: 1,
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},
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"exit": &ast.Function{
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Function: exit_shell,
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Name: "exit",
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TimesCalled: 0,
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Args: 0,
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},
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}
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return stdlib
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}
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func exit_shell(in *ast.Token, vt ast.VarTable, ft ast.FuncTable) *ast.Token {
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os.Exit(0)
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return nil // I hope execution doesnt get here
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}
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