/****************************** Module Header *******************************
*
* Module Name: run.erx
*
* EPM REXX
* Execute an action for the current file in EPM, depending on its mode
* or extension.
*
* This REXX command is called when the menu item "Run -> Run current file"
* or the toolbar button "Run" was pressed.
*
* This is coded in REXX to let users adjust it to their needs easily:
*
*    o  Copy this file to your %NEPMD_USERDIR%\bin directory.
*    o  Change or extend the "select" expression below.
*    o  In your "when" block, set the var "Action" to the command that
*       shall be executed.
*    o  In your "when" block, set the var "Msg" to override the default
*       message.
*
* Available vars:
*
*    Filename.1   current filename
*    Filename.2   like Filename.1, but enclosed in doublequotes if it
*                 contains spaces
*    Filename.3   like Filename.1, but without path
*    Path         path of Filename.1, including the trailing backslash
*    Basename     like Filename.3, but without extension
*    Ext          extension, without the dot
*    UpExt        extension in uppercase
*    Mode         mode for Filename.1
*
* Notes:
*
*    o  Temporary files, starting with a dot, are ignored.
*    o  If current file is modified, it will be saved first.
*
* Copyright (c) Netlabs EPM Distribution Project 2002
*
* $Id: run.erx 3835 2020-01-28 07:47:55Z aschn $
*
* ===========================================================================
*
* This file is part of the Netlabs EPM Distribution package and is free
* software.  You can redistribute it and/or modify it under the terms of the
* GNU General Public License as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* Netlabs EPM Distribution.  This library is distributed in the hope that it
* will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
* General Public License for more details.
*
****************************************************************************/

rc = Init()
if (rc <> 0) then
   exit( rc)

/* Determine action from mode or extension */
Msg = ''
Action = ''
select

   /* CMD and REXX files */
   when Mode = 'CMD' | UPExt = 'CMD' then
      /*Action = 'os2 /k /f 'filename.2*/
      Action = 'Shell 'Filename.2

   /* EPM macro files */
   when UpExt = 'E' | (UpExt = 'LOG' & pos( 'RECOMPILENEW', translate( Basename)) = 1) then
      Action = 'Postme RecompileNew'

   /* TeX source files */
   when wordpos( UpExt, 'TEX TEXI TEXINFO') > 0 then
      Action = 'Shell vlatex.cmd 'Filename.3

   /* LaTeX macro documentation source files */
   when wordpos( UpExt, 'DRV DTX FDD') > 0 then
      Action = 'Shell vlatex.cmd 'Filename.3

   /* C files */
   when UpExt = 'C' then
      /*Action = 'os2 /k /f wcc386 'Filename.1*/
      /*Action = 'os2 /k /f gcc 'Filename.1*/
      Action = 'Shell nmake /nologo all'

   /* EPM REXX files */
   when Mode = 'REXX' & UpExt = 'ERX' then
      Action = 'Postme Rx 'Filename.2

   /* HTML files */
   when Mode = 'HTML' then
      Action = 'OpenUrl 'Filename.2

   otherwise
   do
      Msg = 'RUN.ERX: No action defined for this mode. Opening file...'
      Action = 'OpenObject' Filename.2
   end

end  /* select */

/* Execute action */
if Msg <> '' then
   'sayerror 'Msg
else
   'sayerror RUN.ERX: Executing 'Action
Action

/*
/* Restore directory */
call directory '\'
call directory SavedDir
*/

exit


/*-------------------------------------------------------------------------*/
Init:

   rc = 0
   rcx = setlocal()

   /* Get .filename and .modify fields */
   'Extract /filename/modify'

   /* Don't act on temp files */
   if left( Filename.1, 1) = '.' then
      exit

   /* Save current file if modified */
   if modify.1 > 0 then
   do
      'Save'
      if rc <> 0 then
         return( rc)
      'Refresh'  /* refresh the bars before further actions */
   end

   /* Get current .erx file */
   parse source . . ThisFile
   /* Avoid endless loop when ThisFile executes itself */
   if translate(ThisFile) = translate(Filename.1) then
      exit

   /* Get mode array field */
   Mode = GetMode()

   /* Change to dir of current file */
   SavedDir = directory()
   call directory '\'
   call directory Filename.1'\..'

   /* Filename.2: add ".." for spaces in Filename.1 */
   if pos( ' ', Filename.1) > 0 then
      Filename.2 = '"'Filename.1'"'
   else
      Filename.2 = Filename.1

   /* Filename.3: strip Path, use name only */
   lp = lastpos( '\', Filename.1)
   Filename.3 = substr( Filename.1, lp + 1)
   Path = substr( Filename.1, 1, lp)

   /* Ext and Basename */
   p = pos( '.', Filename.3)
   if p > 1 then
   do
      Ext = substr( Filename.3, p + 1)
      Basename = substr( Filename.3, 1, p - 1)
   end
   else
   do
      Ext = ''
      Basename = Filename.3
   end
   UpExt = translate( Ext)

   /*'sayerror Mode for "'Filename.1'" = "'Mode'", UpExt = "'UpExt'"'*/

   return( 0)

/*-------------------------------------------------------------------------*/
GetMode:  procedure
   'SaveUserstring'
   'FileAVar2Userstring mode'
   'extract /userstring'
   Mode = userstring.1
   'RestoreUserstring'
   return Mode