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Charlotte 2.1.0 fix level 192 built 2010-03-30 at 17:45
 
Summary of features of Charlotte V2R1 web browser for VM/CMS
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- Provides full-screen text-only web access from VM/CMS terminal.
- Uses extended 3270 highlighting and colour where available.
- Based primarily on HTML 3.2 and HTTP 1.0 specifications.
  - Includes for example DIV tag and ALIGN option on P tag.
  - Supports client-side image maps (MAP and AREA tags).
- Where necessary, follows common practice rather than standards.
  - Usually end comment at "-->" rather than using strict SGML rules.
  - Many other minor features for compatibility with other browsers.
- Handles HTTP, HTTPS, FTP, GOPHER, NNTP (news) and local FILE protocols.
  - Can also alternatively use external GOPHER or NEWS client.
  - HTTPS support requires separate SSL encryption support package.
- Supports SOCKS or PROXY firewall servers.
  - Can specify direct connection to selected addresses.
  - Supports multiple firewalls with selection by protocol or host name.
- Supports binary download (either via link or form submit).
- Formats complex documents much faster than older REXX-only browser.
  - Formatter is written in C/370 (using System Programming C subset).
- Wide tables are automatically adjusted to fit screen if possible.
- Copes well with common errors such as missing or mismatched end tags.
- Interrogates terminal character set to select correct translate table.
- Supports all ISO 8859-1 Latin-1 characters and character entities.
  - Approximates most characters unavailable on non-CECP 3278/3279.
  - Approximates some Windows 3.1 extended characters (ASCII 128-159).
- Uses APL/Text characters for tables and bullets where supported.
  - Also supports APL/Text square brackets in input data.
- Can link to URL appearing in text as well as explicit hyperlink.
- Text area input data can be edited using XEDIT.
  - Makes it easier to edit multi-line text.
  - Also allows existing text to be included in a text area.
- Supports scrolling right/left in document and within input fields.
  - Includes scrolling right in input prompt, for entering long URLs.
- Active documents are retained in main storage or on disk.
- Includes web map function for switching between active documents.
- Automatically recognizes when a link returns to a previous document.
  - Restores "Return" key path to its previous state (with a message).
  - Usually makes it easier to navigate through hierarchical documents.
- User can specify preferences such as PF key style using options.
- Advanced users or installations can easily define new option files.
- PF key sets are switched automatically according to context.
- Supports debug tracing of all TCP/IP calls and results.
- Supports basic authentication (userid/password) protocol.
- Supports proxy authentication (HTTP 1.1 extension).
- Provides Host header to support virtual hosts (HTTP 1.1 extension).
- Provides automatic links to give access to frames-only web pages.
- Leading "http://" is assumed if necessary on URLs entered by the user.
- Includes on-line help for end user and for configuration options.
- Supports "cookies" to retain information between server requests.
  - Supports Netscape-style cookies plus "max-age" as in RFC 2109.
 
Prerequisites
-------------
- Requires CMS Pipelines.
  - Tolerates 1.1.6 or equivalent (PRPQ or as supplied with VM/ESA).
  - Works better with recent "Field test" version (1.1.10).
- Requires TCP/IP for VM.
- Supports CMS 5.6 or above.
- REXX components are normally run compiled (using release 3).
  - Can also be run interpreted if run-time library is not available.
- Requires REXX sockets version 2 or above (included in CMS 13).
 
Tags fully or mostly supported (mostly to HTML 3.2 level)
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A, ADDRESS, B, BASE, BLOCKQUOTE, BODY, BR, CAPTION, CENTER, CITE, CODE,
DD, DFN, DIR, DIV, DL, DT, EM, FORM, H1-H6, HEAD, HR, HTML, I, INPUT,
ISINDEX, KBD, LI, LISTING, MENU, OL, OPTION, P, PLAINTEXT, PRE, Q,
QUOTE, SAMP, SCRIPT, STYLE, SELECT, STRONG, TABLE, TD, TEXTAREA, TH,
TITLE, TR, TT, U, UL, VAR, XMP.
 
Tags partially supported
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AREA, FRAME, FRAMESET, IMAGE, IMG, MAP.