支持sequence检验

src/swift/TagValidater.js

 
 import {RegMap} from './TagRegMap'
 
-export function TagV(tag,status,value,tno,mty)
+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,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] || {}