From 2c474f44e8f7c0e704617da9209c8edfc5afa7a5 Mon Sep 17 00:00:00 2001
From: zimoch <zimoch>
Date: Tue, 26 Feb 2013 16:47:58 +0000
Subject: [PATCH] aliases and link target check added

---
 externalLinks | 40 +++++++++++++++++++++++++++++++++-------
 1 file changed, 33 insertions(+), 7 deletions(-)

diff --git a/externalLinks b/externalLinks
index 8468cf7..50afaee 100755
--- a/externalLinks
+++ b/externalLinks
@@ -4,8 +4,8 @@
 
 version () {
     echo '$Author: zimoch $' >&2
-    echo '$Date: 2011/09/23 10:04:09 $' >&2
-    echo '$Revision: 1.9 $' >&2
+    echo '$Date: 2013/02/26 16:47:58 $' >&2
+    echo '$Revision: 1.10 $' >&2
     echo '$Source: /cvs/G/EPICS/App/scripts/externalLinks,v $' >&2
     exit 1
 }
@@ -212,6 +212,7 @@ function expandFile () {
     /field\(.*,DBF_.*\)/ {
         match($0,/\((.*),/,a)
         field = a[1]
+        isfield[rtype,field] = 1
     }
     /field\(.*,DBF_NOACCESS\)/ {
         isnoaccess[rtype,field] = 1
@@ -313,7 +314,7 @@ function expandFile () {
             issoft[rtype,dtype] = 1 }
         if (isdefined[rtype, dtype]) {
             if (debug) {
-                printf("duplicate device type %s for record type %s\n\t%s line %d\n\t%s\n",
+                printf("duplicate device type \"%s\" for record type %s\n\t%s line %d\n\t%s\n",
                     dtype, rtype, filename, line, definition[rtype, dtype]) > "/dev/stderr"
             }
             modulename[rtype, dtype] = modulename[rtype, dtype] "\" or \"" module
@@ -347,12 +348,21 @@ function expandFile () {
         }
         soft = 1
     }
+    /alias\(".*\",".*\")/ {
+        match($0,/\("(.*)","(.*)"/,a)
+        record = a[1]
+        aliasname = a[2]
+        if (recordtype[record] == "") {
+            printf ("alias \"%s\" defined for not existing record \"%s\"\n\tin %s\n",
+                aliasname, record, filename) > "/dev/stderr"
+        }
+        alias[aliasname] = record;
+    }
     /field\(.*, ".*\")/ {
         if (!stringsize[rtype,"NAME"]) next;
         match($0,/\((.*), "(([^-+0-9\.][^\. ]*)?.*)"\)/,a)
         field = a[1]
         value = a[2]
-        target = a[3]
         menu = menuname[rtype,field]
         
         if (fieldvalue[record,field] && fieldvalue[record,field] != value) {
@@ -385,9 +395,9 @@ function expandFile () {
             soft = issoft[rtype,value]
             dtyp[record] = value
         } else if (islink[rtype,field]) {
-            if (target != "" && \
+            if (value != "" && \
                 ((field != "INP" && field != "OUT") || soft)) {
-                reference[target] = filename ": "record "." field
+                reference[value] = filename ": "record "." field
             }
             if (field == "INP" || field == "OUT") {
                 iolink[record] = field
@@ -440,9 +450,25 @@ function expandFile () {
     }
     END {
         for (target in reference) {
-            if (recordtype[target] == "") {
+            split(target,a,".")
+            record = a[1]
+            field = a[2]
+            if (alias[record] != "") { record = alias[record] }
+            if (recordtype[record] == "") {
                 if (where) print reference[target],target
                 else print target
+            } else {
+                if (field == "") { field = "VAL" }
+                rtype = recordtype[record]
+                split (reference[target],a," ")
+                link = a[2]
+                if (!isfield[rtype,field]) {
+                    printf("link \"%s\" points to non-existing %s field \"%s.%s\"\n",
+                        link, rtype, record, field) > "/dev/stderr"
+                } else if (isnoaccess[rtype,field]) {
+                    printf("link \"%s\" points to NOACCESS %s field \"%s.%s\"\n",
+                        link, rtype, record, field) > "/dev/stderr"
+                }
             }
         }
         if (require) {