From 160009e6218306442b21db0902f334412bcbd7ad Mon Sep 17 00:00:00 2001
From: Joe Taylor <k1jt@arrl.org>
Date: Thu, 19 Jul 2012 12:16:29 +0000
Subject: [PATCH] Are these properly registered, finally?

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/jtms3@2528 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
---
 libm65/alignmsg.f90 | 38 ++++++++++++++++++++++++++++++++++++++
 libm65/hipass.f90   | 23 +++++++++++++++++++++++
 libm65/match.f90    | 28 ++++++++++++++++++++++++++++
 libm65/tweak1.f90   | 24 ++++++++++++++++++++++++
 mainwindow.cpp      |  2 +-
 5 files changed, 114 insertions(+), 1 deletion(-)
 create mode 100644 libm65/alignmsg.f90
 create mode 100644 libm65/hipass.f90
 create mode 100644 libm65/match.f90
 create mode 100644 libm65/tweak1.f90

diff --git a/libm65/alignmsg.f90 b/libm65/alignmsg.f90
new file mode 100644
index 000000000..4608c2da3
--- /dev/null
+++ b/libm65/alignmsg.f90
@@ -0,0 +1,38 @@
+subroutine alignmsg(word0,nmin,msg,msglen,idone)
+
+  character*(*) word0
+  character*29 msg,word
+
+  word=word0//' '
+  idone=0
+
+! Test for two (or more) <space> characters
+  if(word(1:2).eq.'  ' .and. len(word).eq.2) then
+     i2=index(msg,'  ')
+     if((i2.ge.1.and.i2.lt.msglen) .or.                                 &
+          (msg(1:1).eq.' '.and.msg(msglen:msglen).eq.' ')) then
+        if(i2.eq.1) msg=msg(i2+2:msglen)           !Align on EOM
+        if(i2.ge.2) msg=msg(i2+2:msglen)//msg(1:i2-1)
+        idone=1
+     endif
+
+! Align on single <space> (as last resort)
+  else if(word(1:1).eq.' ' .and. len(word).eq.1) then
+     i3=index(msg,' ')
+     if(i3.ge.1 .and. i3.lt.msglen) msg=msg(i3+1:msglen)//msg(1:i3)
+     if(i3.eq.msglen) msg=msg(1:msglen)
+     msg=msg(1:msglen)//msg(1:msglen)
+     idone=1
+
+! Align on specified word
+  else
+     call match(word,msg(1:msglen),nstart,nmatch)
+     if(nmatch.ge.nmin) then
+        if(nstart.eq.1) msg=msg(nstart:msglen)
+        if(nstart.gt.1) msg=msg(nstart:msglen)//msg(1:nstart-1)
+        idone=1
+     endif
+  endif
+
+  return
+end subroutine alignmsg
diff --git a/libm65/hipass.f90 b/libm65/hipass.f90
new file mode 100644
index 000000000..9a24fa89a
--- /dev/null
+++ b/libm65/hipass.f90
@@ -0,0 +1,23 @@
+subroutine hipass(y,npts,nwidth)
+
+!  Hipass filter for time-domain data.  Removes an RC-type running 
+!  mean (time constant nwidth) from array y(1:npts).  
+
+  real y(npts)
+
+  c1=1.0/nwidth
+  c2=1.0-c1
+  s=0.
+  do i=1,nwidth                      !Get initial average
+     s=s+y(i)
+  enddo
+  ave=c1*s
+
+  do i=1,npts                        !Do the filtering
+     y0=y(i)
+     y(i)=y0-ave                     !Remove the mean
+     ave=c1*y0 + c2*ave              !Update the mean
+  enddo
+
+return
+end subroutine hipass
diff --git a/libm65/match.f90 b/libm65/match.f90
new file mode 100644
index 000000000..e9570dabc
--- /dev/null
+++ b/libm65/match.f90
@@ -0,0 +1,28 @@
+subroutine match(s1,s2,nstart,nmatch)
+
+  character*(*) s1,s2
+  character s1a*29
+
+  nstart=-1
+  nmatch=0
+  n1=len_trim(s1)+1
+  n2=len(s2)
+  s1a=s1//' '
+  if(n2.ge.n1) then
+     do j=1,n2
+        n=0
+        do i=1,n1
+           k=j+i-1
+           if(k.gt.n2) k=k-n2
+           if(s2(k:k).eq.s1a(i:i)) n=n+1
+        enddo
+        if(n.gt.nmatch) then
+           nmatch=n
+           nstart=j
+        endif
+     enddo
+  endif
+
+  return
+end subroutine match
+        
diff --git a/libm65/tweak1.f90 b/libm65/tweak1.f90
new file mode 100644
index 000000000..f6799dae4
--- /dev/null
+++ b/libm65/tweak1.f90
@@ -0,0 +1,24 @@
+subroutine tweak1(ca,jz,f0,cb)
+
+! Shift frequency of analytic signal ca, with output to cb
+
+  complex ca(jz),cb(jz)
+  real*8 twopi
+  complex*16 w,wstep
+  data twopi/0.d0/
+  save twopi
+
+  if(twopi.eq.0.d0) twopi=8.d0*atan(1.d0)
+  w=1.d0
+  dphi=twopi*f0/11025.d0
+  wstep=cmplx(cos(dphi),sin(dphi))
+  x0=0.5*(jz+1)
+  s=2.0/jz
+  do i=1,jz
+     x=s*(i-x0)
+     w=w*wstep
+     cb(i)=w*ca(i)
+  enddo
+
+  return
+end subroutine tweak1
diff --git a/mainwindow.cpp b/mainwindow.cpp
index 8b017971d..ce23348e6 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -1,4 +1,4 @@
-//---------------------------------------------------------------- MainWindow
+//--------------------------------------------------------------- MainWindow
 #include "mainwindow.h"
 #include "ui_mainwindow.h"
 #include "devsetup.h"