Aestiva H2O Web Site

Installation:
  Free Downloads
  The H2O Family
  Install Notes

Programming:
  Prerequisites
  H2O Whitepaper
  Online Manual
  Code Examples
  H2O Free Support

What's H2O?
H2O is programming made for the web.

What's it like?
H2O is English-like. If you know some Perl, VB, ASP, or PhP you'll be immediately productive in H2O. It runs on Linux, Mac, Unix, and Windows.

How do I try it?
Download H2O for free. Get it from hosting providers. Or buy on-line.

Where does H2O come from?
The language was invented by Aestiva. H2O stands for:
   HTML with
   HTML/OS
   Overlays.

Multi-file Upload

upload_multi.html


<<

   file_folder="/upload_folder"
   number_of_files=4
>>
<html>
<title>Upload Multiple Files</title>
<body bgcolor=white>
<<
  IF err_msg != "ERROR" THEN
    DISPLAY err_msg + "<br>" /DISPLAY
    err_msg = "ERROR"
  /IF
>>

<form method=post enctype="multipart/form-data" action=upthem><br>
<< i=1
   WHILE i <= number_of_files DO
     DISPLAY
        'File #' + i + ': <input type=file size=30 name="' + 
        ("F" + i + "_" + USERNUM) + '" ><br>'
     /DISPLAY
     i = i + 1
   /WHILE
>>
<input type=submit value="Upload Now">
</form>
</body>
</html>

<<OVERLAY upthem
  #  H2O places uploaded files in the /upload folder.
  #  The uploaded file is given the same name as the
  #  variable in the <input type=file> statement.
  /#
  no_files_uploaded=0
  i = 1
  WHILE i <= number_of_files DO
    uploadfile_name="/upload/" + ("F" + i + "_" + USERNUM+".txt")
    void=FILEINFO(uploadfile_name)
    IF void[2] != "" AND void[2] > 0 THEN
      file_name=file_folder+"/file"+i+".txt"
      FILEMOVE(uploadfile_name,file_name)
      no_files_uploaded = no_files_uploaded + 1
    ELSE
      FILEREMOVE(uploadfile_name)
    /IF
    GOTO PAGE
    i = i + 1
  /WHILE
  IF no_files_uploaded=0 THEN
    err_msg = "<font color=red>No files uploaded</font>"
  ELSE
    err_msg = no_files_uploaded+ files uploaded"
  /IF
  GOTO PAGE
>>