[_CDCSL_93-16_]<1>Cedar>release>IconHacks>IconHacksDoc.tioga

IconHacksDoc.tioga

Last tweaked by Mike Spreitzer on August 19, 1988 9:56:17 am PDT

Dave Rumph, June 2, 1987 10:15:18 am PDT

Doug Wyatt, September 25, 1992 2:36 pm PDT

IconHacks

CEDAR 10.1 —

IconHacks

Mike Spreitzer

Abstract: This package hacks Viewer labels by replacing common long patterns with shorter ones. It also selects icon shapes, based on the extension of the file, and whether the viewer is considered to be edited or not.

Created by: Mike Spreitzer

Maintained by: Mike Spreitzer <Spreitzer:parc>, Michael Plass <Plass:parc>

Keywords: Viewer, Label, Icon

XEROX Xerox Corporation
Palo Alto Research Center
3333 Coyote Hill Road
Palo Alto, California 94304

1. Label Hacking

1.0. Theory

Many of our viewers have names that are too long to fit well in the space available in icons. Label hacking lets you identify patterns and replacements to apply to the viewer names to get the icon labels. The patterns and replacements are expressed in the language used in the `Target' and `Replacement' fields of the EditTool. You specify a list of patterns and replacements, which are applied in that order.

1.1. Control

For this feature to be engaged, you must have the IconHacks package installed, and the user profile entry "IconHacks.HackLabels" must be TRUE.

1.2. User Profile Entries

IconHacks.LabelSubstitutions: Line ← Defaults

This is a list of (pair | "Defaults"); "Defaults" means to insert the default list of pairs in that position. Each pair consists of a pattern (and maybe some switches) and a replacement, as in the EditTool. The patterns and replacements may be quoted; when there are no quotes, white space is taken to seperate, and no switches may be given. Switches are specified by a series of characters immediately following the closing quote of a quoted pattern. Here are the meanings of those characters (sense starts out TRUE):

- => sense ← FALSE;

+ => sense ← TRUE;

l => literal ← sense;

p => literal ← NOT sense;

w => word ← sense;

c => ignoreCase ← NOT sense;

The default switch settings are: literal=TRUE, word=FALSE, ignoreCase=TRUE.

Remember that for a non-literal pair, you have to be careful about the meta-characters of the pattern and replacement language. These are documented at the end of the `Subs' section of the EditTool. A common `gotcha' is to forget to quote the angle brackets in file and directory names. For literal pairs, there is no special processing, and so there are no metacharacters to worry about.

The default list is:

/Cedar/ c/

/Cedar10.1/ c/

/PCedar2.0/ pc/

/tilde/userName/ ~/

.mesa .m

.config .c

IconHacks.HackLabels: BOOL ← FALSE

This controls whether the label hacking is done.

2. Icon Mapping

2.1. How it works

IconHacks also will automatically select an icon shape for newly created (or edited or saved) files, based on the extension of the file, and whether the viewer is considered to be edited or not. The icons to be used must have been registered with IconRegistry. The icon to be used will be the first of the following:

1) The icon specified by the profile entry "IconHacks.Icon.extension". (It will also check for "IconHacks.DirtyIcon.extension" first if the viewer is edited.)

2) If the icon "extension" is registered (and "Dirtyextension" if ...), then it will use that one.

3) The icon specified by the profile entry "IconHacks.DefaultIcon". (It will also check for "IconHacks.DirtyDefaultIcon" first if the viewer is edited.)

4) Whatever the client code which created the viewer requested.

The following profile entry may by added to your profile to get one such mapping. (N.B. If you use Remember or another package which uses IconRegistry, you may need to fold these in as additions.)

RegisteredIcons: "

Mesa: ///7.0/Commands/IconHacks.Icons 0

DirtyMesa: ///7.0/Commands/IconHacks.Icons 1

Tioga: ///7.0/Commands/IconHacks.Icons 2

DirtyTioga: ///7.0/Commands/IconHacks.Icons 3

Df: ///7.0/Commands/IconHacks.Icons 4

DirtyDf: ///7.0/Commands/IconHacks.Icons 5

Config: ///7.0/Commands/IconHacks.Icons 6

DirtyConfig: ///7.0/Commands/IconHacks.Icons 7

Errlog: ///7.0/Commands/IconHacks.Icons 8

DirtyErrlog: ///7.0/Commands/IconHacks.Icons 9

2.2. User Profile Entries

IconHacks.HackIcons: BOOL ← FALSE

This controls whether the icon shape hacking is done.

IconHacks.DirtyIcon.extension: ROPE ← IconName

IconHacks.Icon.extension: ROPE ← IconName

IconHacks.DefaultDirtyIcon: ROPE ← IconName

IconHacks.DefaultIcon: ROPE ← IconName