支持SEQ可选输入

src/swift/TagValidater.js

 
 import {RegMap} from './TagRegMap'
 
-export function TagV(tag,status,value,tno,mty,t111)
+export function isTagValueEmpty(tag,tagValue)
+{
+    let obj = tagValue[0]
+    let regobj = RegMap[tag]
+    for(let key in regobj)
+    {
+        if(obj[key])
+            return false
+    }
+    return true
+}
+
+export function TagV(tag,status,value,tno,mty,t111,seqlist,countMap={})
 {
 	let regobj = RegMap[tag]
     let obj = value[0]
     let mval = value[1]
+     //计算状态 status，是否是必填的，要参考所在序列是否是必填，上一层序列计数，来决定当前序列是否必填  
+     if(seqlist && seqlist.length && status == 'M' && isTagValueEmpty(tag,value))
+     {
+          let curseq = seqlist[seqlist.length - 1]
+          let curcnt = countMap[curseq.seqlist] || 0
+          if(curseq.status == 'O' &&  curcnt==0)
+          {
+              status = 'O'
+          }
+          else if(curseq.status == 'M' && curcnt==0)
+          {
+              //验证上层是否有计数为O，且上层计数
+              for(let i = seqlist.length - 2 ; i >=0;i--)
+              {
+                      let itemseq = seqlist[i]
+                      let itemcnt = countMap[itemseq.seqlist] || 0
+                      if(itemcnt>0)
+                          break
+                      if(itemseq.status == 'O' && itemcnt == 0)
+                          status = 'O'
+                      
+ 
+              }
+          }
+     }
+ 
     let errmsg = null
     if(value.length == 3)
          errmsg = value[2] || {}