forked from x/icebergs
118 lines
2.7 KiB
Go
118 lines
2.7 KiB
Go
package lex
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import (
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"strings"
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ice "shylinux.com/x/icebergs"
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"shylinux.com/x/icebergs/base/nfs"
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kit "shylinux.com/x/toolkits"
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)
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func _split_tab(text string) (tab int) {
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for _, c := range text {
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switch c {
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case '\t':
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tab += 4
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case ' ':
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tab++
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default:
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return
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}
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}
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return
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}
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func _split_deep(stack []int, text string) ([]int, int) {
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tab := _split_tab(text)
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for i := len(stack) - 1; i >= 0; i-- {
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if tab <= stack[i] {
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stack = stack[:len(stack)-1]
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}
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}
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stack = append(stack, tab)
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return stack, len(stack)
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}
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func _split_list(m *ice.Message, file string, arg ...string) ice.Map {
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const DEEP = "_deep"
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stack, deep := []int{}, 0
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list := kit.List(kit.Data(DEEP, -1))
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line := ""
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m.Cmd(nfs.CAT, file, func(text string) {
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if strings.HasPrefix(strings.TrimSpace(text), "# ") {
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return // 注释
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}
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if strings.TrimSpace(text) == "" {
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return // 空行
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}
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if line += text; strings.Count(text, "`")%2 == 1 {
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return // 多行
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}
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stack, deep = _split_deep(stack, text)
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data := kit.Data(DEEP, deep)
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// 回调函数
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ls := kit.Split(text, m.Option(SPLIT_SPACE), m.Option(SPLIT_BLOCK), m.Option(SPLIT_QUOTE), m.Option(SPLIT_TRANS))
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switch cb := m.OptionCB(SPLIT).(type) {
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case func(int, []string, ice.Map) []string:
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ls = cb(deep, ls, data)
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case func([]string, ice.Map) []string:
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ls = cb(ls, data)
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case func([]string):
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cb(ls)
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default:
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m.Error(true, ice.ErrNotImplement)
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}
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// 参数字段
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for _, k := range arg {
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if kit.Value(data, kit.Keym(k), kit.Select("", ls, 0)); len(ls) > 0 {
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ls = ls[1:]
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}
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}
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// 属性字段
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for i := 0; i < len(ls)-1; i += 2 {
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kit.Value(data, kit.Keym(ls[i]), ls[i+1])
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}
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// 查找节点
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for i := len(list) - 1; i >= 0; i-- {
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if deep > kit.Int(kit.Value(list[i], kit.Keym(DEEP))) {
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kit.Value(list[i], "list.-2", data)
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list = append(list, data)
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break
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}
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list = list[:len(list)-1]
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}
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line = ""
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})
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return list[0].(ice.Map)
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}
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func Split(m *ice.Message, arg ...string) ice.Map {
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return kit.Value(_split_list(m, arg[0], arg[1:]...), "list.0").(ice.Map)
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}
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const (
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SPLIT_SPACE = "split.space"
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SPLIT_BLOCK = "split.block"
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SPLIT_QUOTE = "split.quote"
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SPLIT_TRANS = "split.trans"
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)
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const SPLIT = "split"
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func init() {
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Index.Merge(&ice.Context{Configs: map[string]*ice.Config{
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SPLIT: {Name: "split", Help: "解析", Value: kit.Data()},
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}, Commands: map[string]*ice.Command{
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SPLIT: {Name: "split path key auto", Help: "解析", Hand: func(m *ice.Message, arg ...string) {
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if len(arg) == 0 || strings.HasSuffix(arg[0], ice.PS) {
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m.Cmdy(nfs.DIR, arg)
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return
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}
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m.Echo(kit.Format(_split_list(m, arg[0], kit.Split(kit.Join(arg[1:]))...)))
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m.DisplayStoryJSON()
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}},
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}})
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}
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