- Upgraded manpage

- Can save relations
- Better -v printout
- Added comments


git-svn-id: http://galileo.dmi.unict.it/svn/relational/trunk@236 014f5005-505e-4b48-8d0a-63407b615a7c

relational.1

@@ -3,13 +3,11 @@
 relational \(em Python implementation of Relational algebra. 
 .SH "SYNOPSIS" 
 .PP 
-\fBrelational\fR [\-v\fR\fP]
-.br
-\fBrelational\fR [ FILE .\|.\|.]
+\fBrelational\fR [OPTIONS\fR\fP] [ FILE .\|.\|.]
 
 .SH "DESCRIPTION" 
 .PP 
-Python implementation of Relational algebra. This program provides a GUI to execute relational algebra queries. It is meant to be used for educational purposes.
+Python implementation of Relational algebra. This program provides an UI to execute relational algebra queries. It is meant to be used for educational purposes.
  
 .SH "OPTIONS" 
 .PP 
@@ -19,6 +17,15 @@ options is included below. However, the ordering is very strict \-
 .IP "\fB-v\fP
 Show version information. 
 
+.IP "\fB-h\fP
+Shows help.
+
+.IP "\fB-q\fP
+Using the Qt4 GUI (default).
+
+.IP "\fB-r\fP
+Uses the readline UI.
+
 .SH "AUTHOR" 
 .PP 
 This manual page was written by Salvo 'LtWorf' Tomaselli <tiposchi@tiscali.it> for 
@@ -26,4 +33,3 @@ the \fBDebian GNU/Linux\fP system (but may be used by others).  Permission is
 granted to copy, distribute and/or modify this document under 
 the terms of the GNU General Public License 
 version 3 or any later version published by the Free Software Foundation. 
-.\" created by instant / docbook-to-man, Fri 10 Oct 2008, 19:02 

relational_gui.py

@@ -27,14 +27,19 @@ from relational import relation, parser
 version="0.11"
 
 
-def printver():
-    print "Relational"
+def printver(exit=True):
+    print "Relational %s" % version
+    print "Copyright (C) 2008 Salvo 'LtWorf' Tomaselli."
+    print
     print "This program comes with ABSOLUTELY NO WARRANTY."
     print "This is free software, and you are welcome to redistribute it"
     print "under certain conditions."
     print "For details see the GPLv3 Licese."
     print
-    print "Version: %s"%version
+    print "Written by Salvo 'LtWorf' Tomaselli <tiposchi@tiscali.it>"
+    print
+    print "http://galileo.dmi.unict.it/wiki/relational/doku.php"
+    if exit:
         sys.exit(0)
 
 def printhelp(code=0):
@@ -105,6 +110,7 @@ if __name__ == "__main__":
         Form.show()
         sys.exit(app.exec_())
     else:
+        printver(False)
         import relational_readline.linegui
         relational_readline.linegui.main(files)
 

relational_readline/linegui.py

@@ -178,7 +178,23 @@ def exec_line(command):
         else:
             print "No such relation %s" % pars[1]
         pass
-    #elif command=='SAVE': //TODO
+    elif command.startswith('SAVE'):
+        pars=command.split(' ')
+        if len(pars)!=3:
+            print "Missing parameter"
+            return
+        
+        filename=pars[1]
+        defname=pars[2]
+        
+        if defname not in relations:
+            print "No such relation %s" % defname
+            return
+        
+        try:
+            relations[defname].save(filename)
+        except Exception,e:
+            print e
     else:
         exec_query(command)
 
@@ -247,6 +263,8 @@ def exec_query(command):
         print e
     
 def main(files=[]):
+    print "> ; Type HELP to get the HELP"
+    print "> ; Completion is activated using the tab"
     
     for i in files:
         load_relation(i)
@@ -261,7 +279,7 @@ def main(files=[]):
     while True:
         try:
             line = raw_input('> ')
-            if isinstance(line,str) and len(line)>0:
+            if isinstance(line,str) and len(line)>0 and not line.startswith(';'):
                 exec_line(line)
         except EOFError:
             print