GNU troff Reference (The GNU Troff Manual)

5 GNU `troff` Reference

This chapter covers all of the facilities of the GNU troff formatting engine. Users of macro packages may skip it if not interested in details.

• Text
• Page Geometry
• Measurements
• Numeric Expressions
• Identifiers
• Formatter Instructions
• Comments
• Registers
• Manipulating Filling and Adjustment
• Manipulating Hyphenation
• Manipulating Spacing
• Tabs and Fields
• Character Translations
• `troff` and `nroff` Modes
• Line Layout
• Line Continuation
• Page Layout
• Page Control
• Using Fonts
• Manipulating Type Size and Vertical Spacing
• Colors
• Strings
• Conditionals and Loops
• Writing Macros
• Page Motions
• Drawing Geometric Objects
• Deferring Output
• Traps
• Diversions
• Punning Names
• Environments
• Suppressing Output
• I/O
• Postprocessor Access
• Miscellaneous
• Gtroff Internals
• Debugging
• Implementation Differences