1 files changed, 65 insertions, 0 deletions
diff --git a/pkg/tbtables/fitsio/ftc2s.f b/pkg/tbtables/fitsio/ftc2s.f
new file mode 100644
index 00000000..460b7d34
--- /dev/null
+++ b/pkg/tbtables/fitsio/ftc2s.f
@@ -0,0 +1,65 @@
+C----------------------------------------------------------------------
+        subroutine ftc2s(in,cval,status)
+C       convert an input quoted string to an unquoted string
+C
+C       The first character of the input string must be a quote character (')
+C       and at least one additional quote character must also be present in the 
+C       input string. This routine then simply outputs all the characters 
+C       between the first and last quote characters in the input string.
+C
+C       in      c  input quoted string
+C       cval    c  output unquoted string
+C       status  i  output error status (0=ok, 1=first quote missing,
+C                  2=second quote character missing.
+
+        character*(*) in,cval
+        integer length,i,j,i2,status
+        character*1 dtype
+
+C       test for datatype
+        call ftdtyp(in,dtype,status)
+        if (status .gt. 0)return
+        if (dtype .ne. 'C')then
+C               do no conversion and just return the raw character string
+                cval=in
+        else
+C               convert character string to unquoted string
+
+C               find closing quote character
+                length=len(in)
+                i2=length-1
+                do 10 i=length,2,-1
+                        if (in(i:i) .eq. '''')go to 20
+                        i2=i2-1
+10              continue
+20              continue
+
+                if (i2 .eq. 0)then
+C                       there was no closing quote character
+                        status=205
+            call ftpmsg('The following keyword value string has no '
+     &      //'closing quote:')
+            call ftpmsg(in)
+                else if (i2 .eq. 1)then
+C                       null string
+                        cval=' '
+                else
+                        cval=in(2:i2)
+
+C                       test for double single quote characters; if found,
+C                       then  delete one of the quotes (FITS uses 2 single
+C                       quote characters to represent a single quote)
+                        i2=i2-2
+                        do 30  i=1,i2
+                            if (cval(i:i) .eq. '''')then
+                                if (cval(i+1:i+1) .eq. '''')then
+                                   do 40 j=i+1,i2
+                                         cval(j:j)=cval(j+1:j+1)
+40                                 continue
+                                   cval(i2:i2)=' '
+                                end if
+                            end if
+30                      continue
+                end if
+        end if
+        end