This is groff, produced by makeinfo version 4.2 from ./groff.texinfo. This manual documents GNU `troff' version 1.18. Copyright (C) 1994-2000, 2001, 2002 Free Software Foundation, Inc. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.1 or any later version published by the Free Software Foundation; with no Invariant Sections, with the Front-Cover texts being `A GNU Manual," and with the Back-Cover Texts as in (a) below. A copy of the license is included in the section entitled `GNU Free Documentation License." (a) The FSF's Back-Cover Text is: `You have freedom to copy and modify this GNU Manual, like GNU software. Copies published by the Free Software Foundation raise funds for GNU development." INFO-DIR-SECTION Miscellaneous START-INFO-DIR-ENTRY * Groff: (groff). The GNU troff document formatting system. END-INFO-DIR-ENTRY  Indirect: groff-1: 1001 groff-2: 48538 groff-3: 97766 groff-4: 140652 groff-5: 187441 groff-6: 231433 groff-7: 275695 groff-8: 325582 groff-9: 372274 groff-10: 420373 groff-11: 430355  Tag Table: (Indirect) Node: Top1001 Node: Introduction2290 Node: What Is groff?2764 Node: What Is groff?-Footnotes4270 Ref: What Is groff?-Footnote-14339 Node: History4376 Node: groff Capabilities9327 Node: Macro Package Intro10513 Node: Preprocessor Intro11135 Node: Output device intro12631 Node: Credits13095 Node: Invoking groff13599 Node: Groff Options14876 Node: Environment24383 Node: Macro Directories26210 Node: Font Directories27532 Node: Invocation Examples29179 Node: Invocation Examples-Footnotes30377 Ref: Invocation Examples-Footnote-130456 Node: grog30689 Node: Tutorial for Macro Users31958 Node: Basics32378 Node: Basics-Footnotes37183 Ref: Basics-Footnote-137236 Ref: Basics-Footnote-237330 Node: Common Features37444 Node: Paragraphs38230 Node: Sections and Chapters39728 Node: Headers and Footers40219 Node: Page Layout Adjustment41092 Node: Displays41359 Node: Footnotes and Annotations42617 Node: Table of Contents43276 Node: Indices43790 Node: Paper Formats44192 Node: Multiple Columns44565 Node: Font and Size Changes44813 Node: Predefined Strings45115 Node: Preprocessor Support45451 Node: Configuration and Customization46005 Node: Macro Packages46372 Node: man46632 Node: Man options47036 Node: Man usage48538 Node: Man font macros53889 Node: Miscellaneous man macros55415 Node: Predefined man strings56246 Node: Preprocessors in man pages56721 Node: mdoc57303 Node: ms57472 Node: ms Intro57948 Node: General ms Structure58617 Node: General ms Structure-Footnotes61058 Ref: General ms Structure-Footnote-161139 Node: ms Document Control Registers61185 Node: ms Cover Page Macros64241 Node: ms Body Text67159 Node: Paragraphs in ms67628 Node: Headings in ms69181 Node: Highlighting in ms69967 Node: Lists in ms72429 Node: Indents in ms75662 Node: Tabstops in ms76228 Node: ms Displays and Keeps76625 Node: ms Insertions80077 Node: Example multi-page table81628 Node: ms Footnotes82071 Node: ms Page Layout82943 Node: ms Headers and Footers83460 Node: ms Margins84483 Node: ms Multiple Columns84724 Node: ms TOC85525 Node: ms Strings and Special Characters88230 Node: ms Strings and Special Characters-Footnotes90886 Ref: ms Strings and Special Characters-Footnote-190993 Node: Differences from AT&T ms91080 Node: Missing ms Macros91379 Node: Additional ms Macros92123 Node: me93375 Node: mm93533 Node: gtroff Reference93680 Node: Text94608 Node: Filling and Adjusting95130 Node: Hyphenation95843 Node: Sentences96626 Node: Tab Stops97766 Node: Implicit Line Breaks98660 Node: Input Conventions99647 Node: Measurements100431 Node: Measurements-Footnotes102638 Ref: Measurements-Footnote-1102703 Node: Default Units102775 Node: Expressions103821 Node: Identifiers106535 Node: Embedded Commands110391 Node: Requests111138 Node: Request Arguments112726 Node: 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Fonts190921 Node: Changing Fonts191458 Node: Font Families193243 Node: Font Positions197760 Node: Using Symbols200875 Node: Using Symbols-Footnotes208965 Ref: Using Symbols-Footnote-1209032 Ref: Using Symbols-Footnote-2209485 Ref: Using Symbols-Footnote-3209556 Ref: Using Symbols-Footnote-4209795 Node: Special Fonts209858 Node: Artificial Fonts210962 Node: Ligatures and Kerning216170 Node: Sizes221992 Node: Sizes-Footnotes222809 Ref: Sizes-Footnote-1222860 Node: Changing Type Sizes223272 Node: Fractional Type Sizes228416 Node: Strings231433 Node: Conditionals and Loops239418 Node: Operators in Conditionals239635 Node: Operators in Conditionals-Footnotes242271 Ref: Operators in Conditionals-Footnote-1242362 Ref: Operators in Conditionals-Footnote-2242441 Node: if-else242540 Node: while244074 Node: Writing Macros246447 Node: Copy-in Mode250343 Node: Parameters251226 Node: Page Motions253341 Node: Drawing Requests260414 Node: Traps268264 Node: Page Location Traps268869 Node: Diversion 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gsoelim324829 Node: Output Devices324938 Node: Special Characters325173 Node: grotty325337 Node: Invoking grotty325478 Node: grops325582 Node: Invoking grops325733 Node: Embedding PostScript325861 Node: grodvi325983 Node: Invoking grodvi326112 Node: grolj4326216 Node: Invoking grolj4326346 Node: grolbp326450 Node: Invoking grolbp326581 Node: grohtml326685 Node: Invoking grohtml326865 Node: grohtml specific registers and strings327021 Node: gxditview327884 Node: Invoking gxditview328012 Node: File formats328131 Node: gtroff Output328401 Node: gtroff Output-Footnotes330237 Ref: gtroff Output-Footnote-1330304 Node: Language Concepts330438 Node: Separation331175 Node: Argument Units333413 Node: Document Parts334553 Node: Command Reference335942 Node: Comment Command336344 Node: Simple Commands336821 Node: Simple Commands-Footnotes342728 Ref: Simple Commands-Footnote-1342799 Node: Graphics Commands342860 Node: Device Control Commands350194 Node: Obsolete Command354229 Node: Intermediate 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