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1.1 root 1: .\" @(#)vhel3 6.1 (Berkeley) 4/25/86
2: .\"
3: .NH
4: Text Processing
5: .NH 2
6: Document Preparation
7: .LP
8: .sh ED
9: Interactive context editor.
10: Random access to all lines of a file.
11: .op
12: Find lines by number or pattern.
13: Patterns may include:
14: specified characters,
15: don't care characters,
16: choices among characters,
17: repetitions of these constructs,
18: beginning of line,
19: end of line.
20: .op
21: Add, delete, change, copy, move or join lines.
22: .op
23: Permute or split contents of a line.
24: .op
25: Replace one or all instances of a pattern within a line.
26: .op
27: Combine or split files.
28: .op
29: Escape to Shell (command language) during editing.
30: .ne3
31: .op
32: Do any of above operations on
33: every pattern-selected line in a given range.
34: .OP
35: Optional encryption for extra security.
36: .sh PTX
37: Make a permuted (key word in context) index.
38: .sh SPELL
39: Look for spelling errors by comparing each word in a
40: document against a word list.
41: .OP
42: 25,000-word list includes proper names.
43: .OP
44: Handles common prefixes and suffixes.
45: .OP
46: Collects words to help tailor local spelling lists.
47: .sh LOOK
48: Search for words in dictionary that begin with specified prefix.
49: .sh CRYPT
50: Encrypt and decrypt files for security.
51: .NH 2
52: Document Formatting
53: .LP
54: .sh TROFF
55: .sh NROFF
56: Advanced typesetting.
57: TROFF drives a Graphic Systems phototypesetter;
58: NROFF drives ascii terminals of all types.
59: This summary was typeset using TROFF.
60: TROFF and NROFF are capable of elaborate
61: feats of formatting,
62: when appropriately programmed.
63: TROFF and NROFF accept the same input language.
64: .op
65: Completely definable page format keyed to dynamically planted
66: ``interrupts'' at specified lines.
67: .op
68: Maintains several separately definable typesetting environments (e.g., one for
69: body text, one for footnotes, and one for unusually elaborate
70: headings).
71: .op
72: Arbitrary number of output pools can be combined at will.
73: .op
74: Macros with substitutable arguments, and macros invocable
75: in mid-line.
76: .op
77: Computation and printing of numerical quantities.
78: .op
79: Conditional execution of macros.
80: .op
81: Tabular layout facility.
82: .op
83: Positions expressible in inches, centimeters, ems, points,
84: machine units
85: or arithmetic combinations thereof.
86: .op
87: Access to character-width computation for unusually difficult
88: layout problems.
89: .op
90: Overstrikes, built-up brackets, horizontal and vertical line drawing.
91: .op
92: Dynamic relative or absolute positioning and size selection,
93: globally or at the character level.
94: .op
95: Can exploit the characteristics of the terminal being used,
96: for approximating special characters, reverse motions,
97: proportional spacing, etc.
98: .LP
99: The Graphic Systems typesetter has a
100: vocabulary of several 102-character fonts (4 simultaneously)
101: in 15 sizes.
102: TROFF provides
103: terminal output for rough sampling of the product.
104: .LP
105: NROFF will produce multicolumn output on terminals capable of reverse line feed,
106: or through the postprocessor COL.
107: .LP
108: High programming skill is required to exploit the formatting
109: capabilities of TROFF and NROFF, although unskilled personnel can easily be trained
110: to enter documents according to canned formats
111: such as those provided by MS, below.
112: TROFF and EQN are essentially identical to NROFF and NEQN
113: so it is usually possible to define interchangeable
114: formats to produce
115: approximate proof copy on terminals
116: before actual typesetting.
117: The preprocessors MS, TBL, and REFER are fully compatible
118: with TROFF and NROFF.
119: .sh MS
120: A standardized manuscript layout package
121: for use with NROFF/TROFF.
122: This document was formatted with MS.
123: .op
124: Page numbers and draft dates.
125: .op
126: Automatically numbered subheads.
127: .op
128: Footnotes.
129: .op
130: Single or double column.
131: .op
132: Paragraphing, display and indentation.
133: .op
134: Numbered equations.
135: .sh EQN
136: A mathematical typesetting preprocessor for TROFF.
137: Translates easily readable formulas, either in-line or displayed, into
138: detailed typesetting instructions.
139: Formulas are written in a style like this:
140: .DS
141: sigma sup 2 ~=~ 1 over N sum from i=1 to N ( x sub i \- x bar ) sup 2
142: .DE
143: which produces:
144: .EQ
145: sigma sup 2 ~=~ 1 over N sum from i=1 to N ( x sub i - x bar ) sup 2
146: .EN
147: .op
148: Automatic calculation of size changes for subscripts, sub-subscripts,
149: etc.
150: .op
151: Full vocabulary of Greek letters and special symbols, such as `gamma', `GAMMA', `integral'.
152: .op
153: Automatic calculation of large bracket sizes.
154: .op
155: Vertical ``piling'' of formulae for matrices, conditional
156: alternatives, etc.
157: .op
158: Integrals, sums, etc., with arbitrarily complex limits.
159: .op
160: Diacriticals: dots, double dots, hats, bars, etc.
161: .op
162: Easily learned by nonprogrammers and mathematical typists.
163: .sh NEQN
164: A version of EQN for NROFF;
165: accepts the same input language.
166: Prepares formulas for display on
167: any terminal that NROFF knows about,
168: for example, those based on Diablo printing mechanism.
169: .op
170: Same facilities as EQN within graphical capability of
171: terminal.
172: .sh TBL
173: A preprocessor for NROFF/TROFF
174: that translates simple descriptions of table layouts
175: and contents into detailed typesetting instructions.
176: .op
177: Computes column widths.
178: .op
179: Handles left- and right-justified columns,
180: centered columns and decimal-point
181: alignment.
182: .op
183: Places column titles.
184: .op
185: Table entries can be text,
186: which is adjusted to fit.
187: .op
188: Can box all or parts of table.
189: .sh REFER
190: Fills in bibliographic citations in a document
191: from a data base (not supplied).
192: .op
193: References may be printed in any style,
194: as they occur or collected at the end.
195: .op
196: May be numbered sequentially, by name of author, etc.
197: .sh TC
198: Simulate Graphic Systems typesetter on Tektronix 4014 scope.
199: Useful for checking TROFF page layout before typesetting.
200: .sh COL
201: Canonicalize files with reverse line feeds
202: for one-pass printing.
203: .sh DEROFF
204: Remove all TROFF commands from input.
205: .sh CHECKEQ
206: Check document for possible errors in EQN usage.
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