Annotation of researchv10dc/vol2/tbl/tbl.ms, revision 1.1.1.1

1.1       root        1: .so ../ADM/mac
                      2: .XX tbl 35 "Tbl \(em A Program to Format Tables"
                      3: .nr zz \n(%#u-1u
                      4: ....if \nM=0 .RP
                      5: ....TM 76-1274-5 39199 39199-11
                      6: .if \n(tm>0 .ND June 11, 1976*
                      7: .TL
                      8: Tbl \(em A Program to Format Tables\(dg
                      9: .AU "MH 2C-569" 6377
                     10: L. L. Cherry
                     11: M. E. Lesk
                     12: .AI
                     13: .MH
                     14: .AB
                     15: .I Tbl
                     16: is a document formatting preprocessor for
                     17: .I troff
                     18: or
                     19: .I nroff
                     20: which makes
                     21: even
                     22: fairly complex tables easy to specify and enter.
                     23: Tables are made up of columns which may be independently centered, right-adjusted,
                     24: left-adjusted, or aligned by decimal points.
                     25: Headings may be placed over single columns or groups of columns.
                     26: A table entry may contain equations, or may consist of several rows of text.
                     27: Horizontal or vertical lines may be drawn as desired
                     28: in the table,
                     29: and any table or element may be enclosed in a box.
                     30: For example:
                     31: .TS
                     32: center, box;
                     33: c  s  s  s
                     34: c  s  s  s
                     35: c |c |c |c
                     36: c |cp-2 |c |c
                     37: l |n |n |n.
                     38: U. S. Energy Production/Consumption
                     39: \s-2(in quadrillion Btu)\s0
                     40: =
                     41: Year   Production      Consumption     Net
                     42: \^     all sources             \^
                     43: _
                     44: 1953   36.77   36.27   +0.51
                     45: 1958   38.81   40.35   \-1.54
                     46: 1963   45.85   48.32   \-2.47
                     47: 1968   56.81   61.00   \-4.19
                     48: 1973   62.06   74.28   \-12.22
                     49: 1978   61.01   78.09   \-17.08
                     50: 1983   61.19   70.05   \-8.86
                     51: 1987   64.55   76.01   \-11.46
                     52: .TE
                     53: .AE
                     54: .tr ~ 
                     55: .de e1
                     56: .nr \\$1 \\$2
                     57: ..
                     58: .de e2
                     59: .\".if !\\n(\\$1=\\n% .tm Error in example \\$1: referred to page \\n(\\$1, is on page \\n%
                     60: .Tm Example \\$1 \\n(\\$1
                     61: .rr \\$1
                     62: ..
                     63: .di qq
                     64: .EQ
                     65: delim $$
                     66: .EN
                     67: .di
                     68: .rm qq
                     69: .2C
                     70: .FS
                     71: \(dgThis is a version of |reference(v7tbl) revised by Lorinda Cherry.
                     72: .FE
                     73: .NH
                     74: Introduction.
                     75: .PP
                     76: .I Tbl
                     77: turns a simple description
                     78: of a table into a
                     79: .I troff
                     80: or
                     81: .I nroff |reference(latest troff reference)
                     82: program (list of commands) that prints the table.
                     83: It
                     84: attempts to isolate a portion of a job that it can
                     85: successfully
                     86: handle and leave the remainder for other programs.
                     87: Thus
                     88: .I tbl
                     89: may be used with the equation formatting
                     90: program
                     91: .I eqn |reference(latest eqn)
                     92: or various
                     93: layout macro packages |reference(latest msmacros)|reference(lesk kernighan typesetting)|reference(mashey smith documentation),
                     94: but does not duplicate their functions.
                     95: .PP
                     96: This memorandum is divided into two parts.
                     97: First we give the rules for preparing
                     98: .I tbl
                     99: input; then some examples are shown.
                    100: The description of rules is precise but technical, and
                    101: the beginning user may prefer to read the examples first,
                    102: as they show some common table arrangements.
                    103: A section explaining how to invoke
                    104: .I tbl
                    105: precedes the examples.
                    106: To avoid repetition, henceforth read
                    107: .I troff
                    108: as
                    109: .I
                    110: ``troff
                    111: .R
                    112: or
                    113: .I
                    114: nroff.''
                    115: .R
                    116: .ds . \^\s14.\s0
                    117: .PP
                    118: The input to
                    119: .I
                    120: tbl
                    121: .R
                    122: is text for a document, with tables preceded by a ``\f(CW.TS\fP''
                    123: (table start)
                    124: command and followed by a ``\f(CW.TE\fP''
                    125: (table end) command.
                    126: .I Tbl
                    127: processes the tables, generating
                    128: .I troff
                    129: formatting commands,
                    130: and leaves the remainder of the text unchanged.
                    131: The
                    132: .CW .TS
                    133: and
                    134: .CW .TE
                    135: lines are copied, too, so that
                    136: .I troff
                    137: page layout macros
                    138: (such as the memo formatting macros|reference(latest msmacros)) can use these lines
                    139: to delimit and place tables as they see fit.
                    140: In particular, any arguments on the
                    141: .CW .TS
                    142: or
                    143: .CW .TE
                    144: lines
                    145: are copied but otherwise ignored, and may be used by document layout
                    146: macro commands.
                    147: .PP
                    148: The format of the input is as follows:
                    149: .DS
                    150: \&text
                    151: .CW .TS
                    152: \&\fItable\fR
                    153: .CW .TE
                    154: \&text
                    155: .CW .TS
                    156: \&\fItable\fR
                    157: .CW .TE
                    158: \&text
                    159: \&\&\*. \*. \*.
                    160: .DE
                    161: where the format of each table is as follows:
                    162: .DS
                    163: .CW .TS
                    164: \fIoptions \f(CW;\fR
                    165: \fIformat \f(CW.\fP
                    166: data
                    167: .CW .TE
                    168: .DE
                    169: .R
                    170: Each table is independent, and must contain formatting
                    171: information
                    172: followed by the data to be entered in the table.
                    173: The formatting information, which describes the
                    174: individual columns and rows of the table, may be preceded
                    175: by a few options that affect the entire table.
                    176: A detailed description of tables is given in the next section.
                    177: .NH
                    178: Input commands.
                    179: .PP
                    180: As indicated above, a table contains, first, global options,
                    181: then a format section describing the layout of the table
                    182: entries, and then the data to be printed.  The format and data
                    183: are always required, but not the options.
                    184: The various parts of the table are entered as follows:
                    185: .NH 2
                    186: Options
                    187: .PP
                    188: There may be a single line of options
                    189: affecting the whole table.
                    190: If present, this line must follow the
                    191: .CW .TS
                    192: line immediately
                    193: and must contain a list of option names
                    194: separated by spaces, tabs, or commas, and must be terminated by a semicolon.
                    195: The allowable options are:
                    196: .IP \f(CW~~center\fR 15
                    197: center the table (default is left-adjust);
                    198: .IP \f(CW~~expand\fR
                    199: make the table as wide as the current line length;
                    200: .IP \f(CW~~box\fR
                    201: enclose the table in a box;
                    202: .IP \f(CW~~allbox\fR
                    203: enclose each item in the table in a box;
                    204: .IP \f(CW~~doublebox\fR
                    205: enclose the table in two boxes;
                    206: .Tm tab        S
                    207: .IP \f(CW~~tab~\fR(\fIx\fR\^)
                    208: use \fIx\fR instead of tab to separate data items.
                    209: .IP \f(CW~~linesize(\fIn\fP)\fR
                    210: set lines or rules (e.g. from \f(CWbox\fR\^) in \fIn\fR point type;
                    211: .Tm delim      S
                    212: .IP \f(CW~~delim(\fIxy\fP)\fR
                    213: recognize \fIx\fR and \fIy\fR as the \fIeqn\fR delimiters.
                    214: .PP
                    215: .I Tbl
                    216: tries to keep boxed tables on one page by issuing
                    217: appropriate
                    218: .I troff
                    219: \&``need''
                    220: .CW .ne ) (
                    221: commands.
                    222: These requests are calculated from the number of lines in the tables,
                    223: and if there are spacing commands embedded in the input, these requests may be inaccurate;
                    224: use normal
                    225: .I troff
                    226: procedures, such as keep-release macros, in that case.
                    227: The user who must have a multi-page boxed table
                    228: should use macros designed for this purpose,
                    229: as explained below under `Usage.'
                    230: .NH 2
                    231: Format
                    232: .PP
                    233: The format section of the table specifies the layout
                    234: of the columns.
                    235: Each line in this section corresponds to one line
                    236: of the table (except that the last line corresponds to all following
                    237: lines up to the next
                    238: .CW .T& ,
                    239: if any \(em see below),
                    240: and each line contains a key-letter for each column
                    241: of the table.
                    242: It is good practice to separate the key letters for each
                    243: column by spaces or tabs.
                    244: Each key-letter is one of the following:
                    245: .cs B 25
                    246: .IP "~~\f(CWL\fR~or~\f(CWl\fR" 10
                    247: to indicate a left-adjusted column entry;
                    248: .IP "~~\f(CWR\fR~or~\f(CWr\fR
                    249: to indicate a right-adjusted column entry;
                    250: .IP "~~\f(CWC\fR~or~\f(CWc\fR
                    251: to indicate a centered column entry;
                    252: .IP "~~\f(CWN\fR~or~\f(CWn\fR
                    253: to indicate a numerical column entry, to be aligned with other
                    254: numerical entries so that the units digits of numbers line up;
                    255: .IP "~~\f(CWA\fR~or~\f(CWa\fR
                    256: to indicate an alphabetic subcolumn;
                    257: all corresponding entries are aligned on the left, and positioned
                    258: so that the widest is centered within the column (see
                    259: example on page 12);
                    260: .IP "~~\f(CWS\fR~or~\f(CWs\fR
                    261: to indicate a spanned heading, i.e. to indicate that the
                    262: entry from the previous column continues across this
                    263: column
                    264: (not allowed for the first column, obviously); or
                    265: .IP ~~\f(CW\s+4\v'6p'^\v'-6p'\s0\fR
                    266: to indicate a vertically spanned heading, i.e. to indicate that
                    267: the entry from the previous row continues down through this row.
                    268: (Not allowed for the first row of the table, obviously).
                    269: .cs B
                    270: .PP
                    271: When numerical alignment is specified, a location for the decimal
                    272: point is sought.  The rightmost dot
                    273: .CW . ) (
                    274: adjacent to a digit is used as a decimal point; if there is no
                    275: dot adjoining a digit, the rightmost digit is used as a units digit;
                    276: if no alignment is indicated, the item is centered in the column.
                    277: However, the special non-printing character string
                    278: .CW \e&
                    279: may be used
                    280: to override unconditionally dots
                    281: and digits, or to align alphabetic data;
                    282: this string lines up where a dot normally would,
                    283: and then disappears from the final output.
                    284: In the example below, the items shown at the left will be
                    285: aligned (in a numerical column) as shown on the right:
                    286: .KS
                    287: .TS
                    288: center;
                    289: l6 n.
                    290: 13     13
                    291: 4\*.2  4\&\*.2
                    292: 26\*.4\*.12    26\*.4\&\*.12
                    293: abc    abc
                    294: abc\e& abc\&
                    295: 43\e&3\*.22    43\&3\*.22
                    296: 749\*.12       749\&\*.12
                    297: .TE
                    298: .KE
                    299: .PP
                    300: \fBNote:\fR
                    301: If numerical data are used in the same column with wider
                    302: .CW L
                    303: or
                    304: .CW r
                    305: type table entries, the widest \fInumber\fR is centered relative
                    306: to the wider
                    307: .CW L
                    308: or
                    309: .CW r
                    310: items (\f(CWL\fR is used instead of \f(CWl\fR for readability;
                    311: they have the same meaning as key-letters).
                    312: Alignment within the numerical items is preserved.
                    313: This is similar to the behavior of
                    314: .CW a
                    315: type data, as explained above.
                    316: However,
                    317: alphabetic subcolumns (requested by the
                    318: .CW a
                    319: key-letter)
                    320: are always slightly indented relative to
                    321: .CW L
                    322: items;
                    323: if necessary, the column width is increased to force this.
                    324: This is not true for \f(CWn\fR type entries.
                    325: .PP
                    326: .ft BI
                    327: Warning:
                    328: .ft 1
                    329: the \f(CWn\fR and \f(CWa\fR items should not be used in
                    330: the same column.
                    331: .PP
                    332: For readability, the key-letters describing each column should
                    333: be separated by spaces.
                    334: The end of the format section is indicated by a period.
                    335: The layout of the key-letters in the format section resembles
                    336: the layout of the actual data in the table.
                    337: Thus a simple format might appear as:
                    338: .P1
                    339: c  s  s
                    340: l  n  n .
                    341: .P2
                    342: which specifies a table of three columns. The first line
                    343: of the table contains a heading centered across all three
                    344: columns; each remaining line contains a left-adjusted item
                    345: in the first column followed by two columns of numerical
                    346: data.
                    347: A sample table in this format might be:
                    348: .br
                    349: .ne 6v
                    350: .br
                    351: .in +4
                    352: .TS
                    353: c s s
                    354: l n n.
                    355: Overall title
                    356: Item-a 34.22   9.1
                    357: Item-b 12.65   .02
                    358: Items: c,d,e   23      5.8
                    359: Total  69.87   14.92
                    360: .TE
                    361: .in -4
                    362: There are some additional features of the key-letter system:
                    363: .IP "\fI~~Horizontal lines~\fR"
                    364: \(em A key-letter may be replaced by
                    365: .CW _
                    366: (underscore) to indicate
                    367: a horizontal line in place of the corresponding column entry,
                    368: or by
                    369: .CW =
                    370: to indicate a double horizontal line.
                    371: If an adjacent column contains a horizontal line, or if
                    372: there are vertical lines adjoining this column,
                    373: this horizontal line is extended to meet the nearby lines.
                    374: If any data entry is provided for this column, it is ignored and
                    375: a warning message is printed.
                    376: .QQ do the D(x) and M(x) to draw a line of 'x' characters.
                    377: .QQ D will draw divided lines, M merged lines. thus - is simplh M(\(ru)
                    378: .IP "\fI~~Vertical lines~\fR"
                    379: \(em A vertical bar may be placed between column key-letters.  This will
                    380: cause a vertical line between the corresponding columns of the table.
                    381: A vertical bar to the left of the first key-letter
                    382: or to the right of the last one produces a line at the
                    383: edge of the table.
                    384: If two vertical bars appear between key-letters, a double vertical
                    385: line is drawn.
                    386: .IP "\fI~~Space between columns~\fR"
                    387: \(em A number may follow the key-letter.  This indicates the amount of separation
                    388: between this column and the next column.
                    389: The number normally specifies the separation in
                    390: .I ens *.
                    391: .FS
                    392: * One en is about the width of the letter `n', or more precisely,
                    393: half the current type size measured in points (1 point = 1/72 inch).
                    394: .FE
                    395: If the ``expand'' option is used, then these numbers are multiplied
                    396: by a constant such that the table is as wide as the current line length.
                    397: The default column separation number is 3.
                    398: If the separation is changed the worst case (largest space requested) governs.
                    399: .IP "\fI~~Vertical spanning~\fR"
                    400: \(em Normally, vertically spanned items extending over several
                    401: rows of the table are centered in their vertical range.
                    402: If a key-letter is followed by
                    403: .CW t
                    404: or
                    405: .CW T ,
                    406: any corresponding vertically spanned item
                    407: will begin at the top line of its range.
                    408: .IP "\fI~~Font changes~\fR"
                    409: \(em A key-letter may be followed by a string containing a font
                    410: name or number
                    411: preceded by the letter
                    412: .CW f
                    413: or
                    414: .CW F .
                    415: This indicates that the corresponding column should be in a different
                    416: font from the default font (usually Roman).
                    417: All font names are one or two letters; a one-letter font
                    418: name should be separated from whatever follows by a space or tab.
                    419: The single letters
                    420: .CW B ,
                    421: .CW b ,
                    422: .CW I ,
                    423: and
                    424: .CW i
                    425: are shorter synonyms for
                    426: .CW fB
                    427: and
                    428: .CW fI
                    429: and refer to the bold and italic fonts in the current font family.
                    430: Font change commands given with the table entries
                    431: override these specifications.
                    432: .IP "\fI~~Point size changes~\fR"
                    433: \(em A key-letter may be followed by the letter
                    434: .CW p
                    435: or
                    436: .CW P
                    437: and a number to indicate the point size of the corresponding table entries.
                    438: The number may be a signed digit, in which case it is taken as
                    439: an increment or decrement
                    440: from the current point size.
                    441: If both a point size and a column separation value are given,
                    442: one or more blanks must separate them.
                    443: .IP "\fI~~Vertical spacing changes~\fR"
                    444: \(em A key-letter may be followed by the letter
                    445: .CW v
                    446: or
                    447: .CW V
                    448: and a number to indicate the vertical line spacing to be used
                    449: within a multi-line corresponding table entry.
                    450: The number may be a signed digit, in which case it is taken as an increment
                    451: or decrement from the current vertical spacing.
                    452: A column separation value must be separated by blanks or some other
                    453: specification from a vertical spacing request.
                    454: This request has no effect unless the corresponding table entry
                    455: is a text block (see below).
                    456: .IP "\fI~~Column width indication~\fR"
                    457: \(em A key-letter may be followed by the letter
                    458: .CW w
                    459: or
                    460: .CW W
                    461: and a width value in parentheses.
                    462: This width is used as a minimum column width.
                    463: If the largest element in the column is not as wide as the width value
                    464: given after the \f(CWw\fR, the largest element is assumed to be that wide.
                    465: If the largest element in the column is wider than the specified value,
                    466: its width is used.
                    467: The width is also used as a default line
                    468: length for included text blocks.
                    469: Normal
                    470: .I troff
                    471: units can be used to scale the width value; if none are used,
                    472: the default is
                    473: ens.
                    474: If the width specification is a unitless integer
                    475: the parentheses may be omitted.
                    476: If the width value is changed in a column, the \fIlast\fR one given controls.
                    477: .IP "\fI~~Equal width columns~\fR"
                    478: \(em A key-letter may be followed by the letter
                    479: .CW e
                    480: or
                    481: .CW E
                    482: to indicate equal width columns.
                    483: All columns whose
                    484: key-letters are followed by \f(CWe\fR or \f(CWE\fR are made the same width.
                    485: This permits the user to get a group of regularly spaced
                    486: columns.
                    487: .IP "\fI~~Staggered columns~\fR"
                    488: \(em A key-letter may be followed by the letter
                    489: .CW u
                    490: or
                    491: .CW U
                    492: to indicate that the corresponding entry is to be moved up one half line.
                    493: This makes it easy, for example, to have a column of differences
                    494: between numbers in an adjoining column.
                    495: The
                    496: .CW allbox
                    497: option does not work with staggered columns.
                    498: .IP "\fI~~Zero-width item~\fR"
                    499: \(em A key-letter may be followed by the letter
                    500: .CW z
                    501: or
                    502: .CW Z
                    503: to indicate that the corresponding
                    504: data item is to be ignored in calculating column widths.
                    505: This may be useful, for example, in allowing headings
                    506: to run across adjacent columns where spanned headings
                    507: would be inappropriate.
                    508: .IP "~~\fBNote:\fR~"
                    509: The order of the above features is immaterial; they need not be separated
                    510: by spaces, except as indicated above to avoid ambiguities involving
                    511: point size and font changes.  Thus
                    512: a numerical column entry in italic font and 12 point type with a minimum
                    513: width of 2.5 inches and separated by 6 ens from the next column could
                    514: be specified as
                    515: .P1
                    516: np12w(2.5i)fI  6
                    517: .P2
                    518: .IP "\fI~~Alternative notation~\fR"
                    519: \(em Instead of listing the format of successive lines of a table
                    520: on consecutive lines of the format section,
                    521: successive line formats may be given on the same line, separated
                    522: by commas, so that the format for the example
                    523: above might have been written:
                    524: .P1
                    525: c s s, l n n .
                    526: .P2
                    527: .IP "\fI~~Default~\fR"
                    528: \(em Column descriptors missing from the end
                    529: of a format line are assumed to be \f(CWL\fR.
                    530: The longest line in the format section, however,
                    531: defines the number of columns
                    532: in the table;
                    533: extra columns in the data are ignored silently.
                    534: .QQ put in the diagnostics.
                    535: .NH 2
                    536: Data
                    537: .PP
                    538: The data for the table are typed after the format.
                    539: Normally, each table line is typed as one line of data.
                    540: Very long input lines can be broken: any line whose last character is
                    541: .CW \e
                    542: is combined with the following line (and the
                    543: .CW \e
                    544: vanishes).
                    545: The data for different columns (the table entries) are separated by tabs,
                    546: or by whatever character has been specified with the option
                    547: .CW tabs .
                    548: There are a few special cases:
                    549: .IP "\fI~~Troff commands within tables\fR~"
                    550: \(em An input line
                    551: beginning with a
                    552: .CW .
                    553: followed by anything
                    554: but a number is assumed to be a command to
                    555: .I troff
                    556: and is passed through unchanged, retaining its position in the table.
                    557: So, for example, vertical space within a table may be produced by
                    558: .CW .sp
                    559: commands
                    560: in the data.
                    561: ......
                    562: .IP "\fI~~Full width horizontal lines\fR~"
                    563: \(em An input line
                    564: containing only
                    565: .CW _
                    566: (underscore)
                    567: or
                    568: .CW =
                    569: (equal sign) is taken to be a single or double
                    570: line, respectively, extending the
                    571: full width
                    572: of the table.
                    573: .IP "\fI~~Single column horizontal lines\fR~"
                    574: \(em An input table entry
                    575: containing only the character $fat "\(ul" $ or \f(CW=\fR
                    576: is taken to be a single or double line extending
                    577: the full width of the column.
                    578: Such lines are extended to meet horizontal or vertical
                    579: lines adjoining this column.
                    580: To obtain these characters explicitly in a column, either
                    581: precede them by
                    582: .CW \e&
                    583: or
                    584: follow them by a space before the usual tab or newline.
                    585: .IP "\fI~~Short horizontal lines\fR~"
                    586: \(em An input table entry
                    587: containing only the string
                    588: .CW \e_
                    589: is taken to be a single line as wide as the contents of
                    590: the column.  It is not extended to meet
                    591: adjoining lines.
                    592: .IP "\fI~~Repeated characters\fR~"
                    593: \(em An input table entry
                    594: containing only a string of the form
                    595: .CW \eR \fIx\fR
                    596: where
                    597: .I x
                    598: is any character is replaced by repetitions of the character
                    599: .I x
                    600: as wide as the data in the column.
                    601: The sequence of
                    602: .I x 's
                    603: is not extended to meet adjoining columns.
                    604: .IP "\fI~~Vertically spanned items\fR~"
                    605: \(em An input table entry containing only the
                    606: character string
                    607: .CW \e^
                    608: indicates that the table entry immediately
                    609: above spans downward over this row.  It is equivalent
                    610: to a table format key-letter of
                    611: .CW ^ .
                    612: .IP "\fI~~Text blocks\fR~"
                    613: \(em In order to include a block of text as a table entry,
                    614: precede it by
                    615: .CW T{
                    616: and follow
                    617: it by
                    618: .CW T} .
                    619: Thus the sequence
                    620: .P1
                    621: \&\fR. . .\fP T{
                    622: .I
                    623: block of
                    624: text
                    625: .CW
                    626: T}\fR . . .
                    627: .P2
                    628: is the way to enter, as a single entry in the table, something
                    629: that cannot conveniently be typed as a simple string between
                    630: tabs.
                    631: Note that the
                    632: .CW T}
                    633: end delimiter must begin a line;
                    634: additional columns of data may follow after a tab on the same line.
                    635: .nr zy \n(zz+10
                    636: See the example on page \n(zy for an illustration of included text blocks
                    637: .e1 aa \n(zy
                    638: in a table.
                    639: If more than fifty or so text blocks are used in a table,
                    640: various limits in the
                    641: .I troff
                    642: program are likely to be exceeded,
                    643: producing diagnostics such as `too many string/macro names' or `too many
                    644: number registers.'
                    645: .IP
                    646: Text blocks are pulled out from the table, processed separately by
                    647: .I troff ,
                    648: and replaced in the table as a solid block.  If no line length
                    649: is specified in the block of text
                    650: tself, or in the table format,
                    651: the default is to use
                    652: $ L times C / (N+1) $
                    653: where $L$ is the current line length,
                    654: $C$ is the number of table columns spanned by the text,
                    655: and $N$ is the total number of columns in the table.
                    656: The other parameters (point size, font, etc.) used in setting the
                    657: block of text are those in effect at the beginning of the table (including
                    658: the effect of the
                    659: .CW .TS
                    660: macro)
                    661: and any table format specifications of size, spacing and font,
                    662: using the \f(CWp\fR, \f(CWv\fR and \f(CWf\fR modifiers to the column key-letters.
                    663: Commands within the text block itself are also recognized, of course.
                    664: However,
                    665: .I troff
                    666: commands within the table data but not within the text block
                    667: do not affect that block.
                    668: .br
                    669: .di RR
                    670: .     this is going down a rathole
                    671: .EQ
                    672: delim off
                    673: .EN
                    674: .di
                    675: .rm RR
                    676: .IP "~~\fBWarnings:\fR~"
                    677: Although any number of lines may be present in a table,
                    678: only the first 200 lines are used in calculating
                    679: the widths of the various columns.
                    680: A multi-page table,
                    681: of course, may be arranged as several single-page tables
                    682: if this proves to be a problem.
                    683: Other difficulties with formatting may arise because,
                    684: in the calculation of column widths all table entries
                    685: are assumed to be in the font and size being used when
                    686: the
                    687: .CW .TS
                    688: command was encountered, except for font and size changes
                    689: indicated (a) in the table format section and (b)
                    690: within the table data (as in the entry
                    691: .CW \es+3\efIdata\efP\es0 ).
                    692: Therefore, although arbitrary
                    693: .I troff
                    694: requests may be sprinkled in a table, care must be taken
                    695: to avoid confusing the width calculations;
                    696: use requests such as
                    697: .CW .ps
                    698: with care.
                    699: .tr ~~
                    700: .sp .5v
                    701: .NH 2
                    702: Additional Command Lines
                    703: .PP
                    704: If the format of a table must be changed after
                    705: many similar lines, as with sub-headings or summarizations, the
                    706: .CW .T&
                    707: (table continue)
                    708: command can be used
                    709: to change column parameters.
                    710: The outline of such a table input is:
                    711: .DS
                    712: .ft CW
                    713: \&.TS
                    714: .ft I
                    715: \&options \f(CW;\fP
                    716: \&format \*.
                    717: \&data
                    718: \&\*. \*. \*.
                    719: .ft CW
                    720: \&.T&
                    721: .ft I
                    722: \&format \*.
                    723: \&data
                    724: .ft CW
                    725: \&.T&
                    726: .ft I
                    727: \&format \*.
                    728: \&data
                    729: .ft CW
                    730: \&.TE
                    731: .DE
                    732: .R
                    733: .nr zy \n(zz+9
                    734: .nr zx \n(zz+12
                    735: as in the examples on pages \n(zy and \n(zx.
                    736: .e1 ab \n(zy
                    737: .e1 ac \n(zx
                    738: Using this procedure, each table line can be close to its corresponding format line.
                    739: .sp 3p
                    740: .ft BI
                    741: Warning:
                    742: .ft R
                    743: It is not possible to change the number of columns, the space
                    744: between columns, the global options such as \fIbox,\fR
                    745: or the selection of columns to be made equal width.
                    746: Nor is
                    747: .CW .T&
                    748: recognized after the first 200 lines of a table.
                    749: .NH
                    750: Usage.
                    751: .PP
                    752: On
                    753: .UX
                    754: systems,
                    755: .I tbl
                    756: can be run on a simple table with the command
                    757: .P1
                    758: tbl input-file | troff
                    759: .P2
                    760: but
                    761: for more complicated use, where there are several input files,
                    762: and they contain equations and
                    763: .CW -ms
                    764: layout commands as well
                    765: as tables, the normal command would be
                    766: .P1
                    767: tbl \fIfiles ...\fP | eqn | troff -ms
                    768: .P2
                    769: and, of course, the usual options may be used on the
                    770: .I troff
                    771: and
                    772: .I eqn
                    773: commands. If any of the file names are
                    774: .CW -
                    775: the standard input is read at that point.
                    776: .PP
                    777: For the convenience of users employing line printers without
                    778: adequate driving tables or post-filters, there is a special
                    779: .CW -TX
                    780: command line option to
                    781: .I tbl
                    782: which produces output that does not have fractional line
                    783: motions in it.
                    784: .PP
                    785: Note that when
                    786: .I eqn
                    787: and
                    788: .I tbl
                    789: are used together on the same file,
                    790: .I tbl
                    791: should be used first.
                    792: If there are no equations within tables,
                    793: either order works, but it is usually faster
                    794: to run
                    795: .I tbl
                    796: first, since
                    797: .I eqn
                    798: normally produces a larger expansion of the input
                    799: than
                    800: .I tbl .
                    801: However, if there are equations within tables
                    802: (using the
                    803: .I delim
                    804: mechanism in
                    805: .I eqn ),
                    806: .I tbl
                    807: must be first or the output will be scrambled.
                    808: Users must also beware of using equations in
                    809: \f(CWn\fR-style columns; this is nearly always wrong,
                    810: since
                    811: .I tbl
                    812: attempts to split numerical format items into two parts and this
                    813: is not possible with equations.
                    814: The user can defend against this by giving the
                    815: .I delim(xx)
                    816: table option;
                    817: this prevents splitting of numerical columns within the delimiters.
                    818: For example, if the
                    819: .I eqn
                    820: delimiters
                    821: are
                    822: .I $$ ,
                    823: giving
                    824: .I delim($$)
                    825: a numerical column such as
                    826: .CW "1245$+- 16$"
                    827: will be divided after 1245, not after 16.
                    828: .PP
                    829: .I Tbl
                    830: accepts up to about 35 columns, the exact number
                    831: depending on the availability
                    832: of number registers.
                    833: The user must avoid number register names used
                    834: by
                    835: .I tbl ,
                    836: which include two-digit numbers from 31 to 97,
                    837: and strings of the form
                    838: .CW 4\fIx\fR,
                    839: .CW 5\fIx\fR,
                    840: .CW #\fIx\fR,
                    841: \fIx\f(CW+\fR, \fIx\f(CW|\fR, \f(CW^\fIx\fR, and \fIx\f(CW-\fR,
                    842: where
                    843: \fIx\fR is any lower case letter.
                    844: The names
                    845: .CW ## ,
                    846: .CW #- ,
                    847: and
                    848: .CW #^
                    849: are also used in certain circumstances.
                    850: To conserve number register names, the
                    851: .CW n
                    852: and
                    853: .CW a
                    854: formats share a register;
                    855: hence the restriction above that they may not be used in the same column.
                    856: .PP
                    857: For aid in writing layout macros,
                    858: .I tbl
                    859: defines a number register
                    860: .CW TW
                    861: which is
                    862: the table width; it is defined by the time that the
                    863: .CW .TE
                    864: macro
                    865: is invoked and may be used in the expansion of that macro.
                    866: More importantly, to assist in laying out multi-page boxed tables
                    867: the macro T# is defined to produce the bottom lines and side lines of a boxed
                    868: table, and then invoked at its end.  By use of this macro
                    869: in the page footer a multi-page table can be boxed.
                    870: In particular, the
                    871: .CW -ms
                    872: macros can be used to print a multi-page boxed table with a repeated heading
                    873: by giving the
                    874: argument
                    875: .CW H
                    876: to the
                    877: .CW .TS
                    878: macro.
                    879: If the table start macro is written
                    880: .P1
                    881:        \&\*.TS H
                    882: .P2
                    883: a line of the form
                    884: .P1
                    885:        \&\*.TH
                    886: .P2
                    887: must be given in the table after any table heading (or at the start if none).
                    888: Material up to the
                    889: .CW .TH
                    890: is placed at the top of each page of table;
                    891: the remaining lines in the table are placed on several pages as required.
                    892: Note that this is
                    893: .I not
                    894: a feature of
                    895: .I tbl ,
                    896: but of the
                    897: .CW -ms
                    898: layout macros.
                    899: .FC
                    900: .1C
                    901: .NH
                    902: Examples.
                    903: .PP
                    904: Here are some examples illustrating features of
                    905: .I
                    906: tbl.
                    907: .R
                    908: .ds T \|\h'.4n'\v'-.2n'\s6\zT\s0\s10\v'.2n'\h'-.4n'\(ci\|\s0
                    909: The symbol \*T in the input represents a tab character.
                    910: .de IN
                    911: .po \\n(POu
                    912: .sp |\\n(.hu
                    913: .sp
                    914: .NE \\$1
                    915: .mk
                    916: .B
                    917: Input:
                    918: .R
                    919: .sp .5
                    920: .nf
                    921: .in +3n
                    922: ..
                    923: .de OU
                    924: .br
                    925: .in -3n
                    926: .rt
                    927: .po +3i
                    928: .B
                    929: Output:
                    930: .R
                    931: .sp .5
                    932: ..
                    933: .rm TS
                    934: .rm TE
                    935: .nf
                    936: .KS
                    937: .IN 2.5i
                    938: \&\*.TS
                    939: \&box;
                    940: \&c c c
                    941: \&l l r\*.
                    942: \&Fact\*TLocation\*TStatistic
                    943: \&
                    944: \&Largest state\*TAlaska\*T591,004 sq. mi.
                    945: \&Smallest state\*TRhode Island\*T1,212 sq. mi.
                    946: \&Longest river\*TMississippi-Missouri\*T3,710 mi.
                    947: \&Highest mountain\*TMount McKinley, AK\*T20,320 ft.
                    948: \&Lowest point\*TDeath Valley, CA\*T\-282 ft.
                    949: \&\*.TE
                    950: .OU
                    951: .TS
                    952: box;
                    953: c c c
                    954: l l r.
                    955: Fact   Location        Statistic
                    956: 
                    957: Largest state  Alaska  591,004 sq. mi.
                    958: Smallest state Rhode Island    1,212 sq. mi.
                    959: Longest river  Mississippi-Missouri    3,710 mi.
                    960: Highest mountain       Mount McKinley, AK      20,320 ft.
                    961: Lowest point   Death Valley, CA        \-282 ft.
                    962: .TE
                    963: .IN 2.8i
                    964: \&\*.TS
                    965: \&allbox;
                    966: \&c s s
                    967: \&c c c
                    968: \&n n n\*.
                    969: \&AT&T Common Stock
                    970: \&Year\*TPrice\*TDividend
                    971: \&1984\*T15-20\*T$1\*.20
                    972: \&5\*T19-25\*T1\*.20
                    973: \&6\*T21-28\*T1\*.20
                    974: \&7\*T20-36\*T1\*.20
                    975: \&8\*T24-30\*T1\*.20
                    976: \&9\*T29-37\*T\*.30*
                    977: \&\*.TE
                    978: \&* (first quarter only)
                    979: .OU
                    980: .TS
                    981: allbox;
                    982: c s s
                    983: c c c
                    984: n n n.
                    985: AT&T Common Stock
                    986: Year   Price   Dividend
                    987: 1984   15-20   $1.20
                    988: 5      19-25   1.20
                    989: 6      21-28   1.20
                    990: 7      20-36   1.20
                    991: 8      24-30   1.20
                    992: 9      29-37   .30*
                    993: .TE
                    994: * (first quarter only)
                    995: .KE
                    996: .BP
                    997: .KS
                    998: .IN 4i
                    999: \&\*.TS
                   1000: \&box;
                   1001: \&c s s
                   1002: \&c | c | c
                   1003: \&l | l | n\*.
                   1004: \&Major New York Bridges
                   1005: \&=
                   1006: \&Bridge\*TDesigner\*TLength
                   1007: \&\(ul
                   1008: \&Brooklyn\*TJ\*. A\*. Roebling\*T1595
                   1009: \&Manhattan\*TG\*. Lindenthal\*T1470
                   1010: \&Williamsburg\*TL\*. L\*. Buck\*T1600
                   1011: \&\(ul
                   1012: \&Queensborough\*TPalmer &\*T1182
                   1013: \&\*T  Hornbostel
                   1014: \&\(ul
                   1015: \&\*T\*T1380
                   1016: \&Triborough\*TO\*. H\*. Ammann\*T\(ul
                   1017: \&\*T\*T383
                   1018: \&\(ul
                   1019: \&Bronx Whitestone\*TO\*. H\*. Ammann\*T2300
                   1020: \&Throgs Neck\*TO\*. H\*. Ammann\*T1800
                   1021: \&\(ul
                   1022: \&George Washington\*TO\*. H\*. Ammann\*T3500
                   1023: \&\*.TE
                   1024: .OU
                   1025: .TS
                   1026: box;
                   1027: c s s
                   1028: c | c | c
                   1029: l | l | n.
                   1030: Major New York Bridges
                   1031: =
                   1032: Bridge Designer        Length
                   1033: _
                   1034: Brooklyn       J. A. Roebling  1595
                   1035: Manhattan      G. Lindenthal   1470
                   1036: Williamsburg   L. L. Buck      1600
                   1037: _
                   1038: Queensborough  Palmer &        1182
                   1039:          Hornbostel
                   1040: _
                   1041:                1380
                   1042: Triborough     O. H. Ammann    _
                   1043:                383
                   1044: _
                   1045: Bronx Whitestone       O. H. Ammann    2300
                   1046: Throgs Neck    O. H. Ammann    1800
                   1047: _
                   1048: George Washington      O. H. Ammann    3500
                   1049: .TE
                   1050: .IN 3.0i
                   1051: \&\*.TS
                   1052: \&c c
                   1053: \&np-2 | n | \*.
                   1054: \&\*TStack
                   1055: \&\*T\(ul
                   1056: \&1\*T46
                   1057: \&\*T\(ul
                   1058: \&2\*T23
                   1059: \&\*T\(ul
                   1060: \&3\*T15
                   1061: \&\*T\(ul
                   1062: \&4\*T6\*.5
                   1063: \&\*T\(ul
                   1064: \&5\*T2\*.1
                   1065: \&\*T\(ul
                   1066: \&\*.TE
                   1067: .OU
                   1068: .TS
                   1069: c c
                   1070: np-2 | n |.
                   1071:        Stack
                   1072:        _
                   1073: 1      46
                   1074:        _
                   1075: 2      23
                   1076:        _
                   1077: 3      15
                   1078:        _
                   1079: 4      6.5
                   1080:        _
                   1081: 5      2.1
                   1082:        _
                   1083: .TE
                   1084: .KE
                   1085: .BP
                   1086: .KS
                   1087: .IN 2.5i
                   1088: \&\*.TS
                   1089: \&box;
                   1090: \&L L L
                   1091: \&L L \(ul
                   1092: \&L L | LB
                   1093: \&L L \(ul
                   1094: \&L L L\*.
                   1095: \&january\*Tfebruary\*Tmarch
                   1096: \&april\*Tmay
                   1097: \&june\*Tjuly\*TMonths
                   1098: \&august\*Tseptember
                   1099: \&october\*Tnovember\*Tdecember
                   1100: \&\*.TE
                   1101: .OU
                   1102: .TS
                   1103: box;
                   1104: L L L
                   1105: L L _
                   1106: L L | LB
                   1107: L L _
                   1108: L L L.
                   1109: january        february        march
                   1110: april  may
                   1111: june   july    Months
                   1112: august september
                   1113: october        november        december
                   1114: .TE
                   1115: .IN 5.0i
                   1116: .e2 ab
                   1117: \&\*.FP helvetica
                   1118: \&\*.TS
                   1119: \&box;
                   1120: \&cf(CW s s s\*.
                   1121: \&Composition of Foods
                   1122: \&\(ul
                   1123: \&\*.T&
                   1124: \&c  | c s s
                   1125: \&c  | c s s
                   1126: \&c   | c  | c  | c\*.
                   1127: \&Food\*TPercent by Weight
                   1128: \&\e^\*T\(ul
                   1129: \&\e^\*TProtein\*TFat\*TCarbo-
                   1130: \&\e^\*T\e^\*T\e^\*Thydrate
                   1131: \&\(ul
                   1132: \&\*.T&
                   1133: \&l  | n  | n  | n\*.
                   1134: \&Apples\*T\*.4\*T\*.5\*T13\*.0
                   1135: \&Halibut\*T18\*.4\*T5\*.2\*T\*. \*. \*.
                   1136: \&Lima beans\*T7\*.5\*T\*.8\*T22\*.0
                   1137: \&Milk\*T3\*.3\*T4\*.0\*T5\*.0
                   1138: \&Mushrooms\*T3\*.5\*T\*.4\*T6\*.0
                   1139: \&Rye bread\*T9\*.0\*T\*.6\*T52\*.7
                   1140: \&\*.TE
                   1141: \&\*.FP times
                   1142: .OU
                   1143: .FP helvetica
                   1144: .TS
                   1145: box;
                   1146: cBCW s s s.
                   1147: Composition of Foods
                   1148: _
                   1149: .T&
                   1150: c  |c s s
                   1151: c  |c s s
                   1152: c   |c  |c  |c.
                   1153: Food   Percent by Weight
                   1154: \^     _
                   1155: \^     Protein Fat     Carbo-
                   1156: \^     \^      \^      hydrate
                   1157: _
                   1158: .T&
                   1159: l  |n  |n  |n.
                   1160: Apples .4      .5      13.0
                   1161: Halibut        18.4    5.2     ...
                   1162: Lima beans     7.5     .8      22.0
                   1163: Milk   3.3     4.0     5.0
                   1164: Mushrooms      3.5     .4      6.0
                   1165: Rye bread      9.0     .6      52.7
                   1166: .TE
                   1167: .FP times
                   1168: .KE
                   1169: .BP
                   1170: .KS
                   1171: .IN 3.7i
                   1172: .e2 aa
                   1173: \&\*.TS
                   1174: \&allbox;
                   1175: \&cfI  s   s
                   1176: \&c    cw(1i)   cw(1i)
                   1177: \&lp9 lp9 lp9\*.
                   1178: \&New York Area Rocks
                   1179: \&Era\*TFormation\*TAge (years)
                   1180: \&Precambrian\*TReading Prong\*T>1 billion
                   1181: \&Paleozoic\*TManhattan Prong\*T400 million
                   1182: \&Mesozoic\*TT{
                   1183: \&\*.na
                   1184: \&Newark Basin, incl\*.
                   1185: \&Stockton, Lockatong, and Brunswick
                   1186: \&formations; also Watchungs
                   1187: \&and Palisades\*.
                   1188: \&T}\*T200 million
                   1189: \&Cenozoic\*TCoastal Plain\*TT{
                   1190: \&On Long Island 30,000 years;
                   1191: \&Cretaceous sediments redeposited
                   1192: \&by recent glaciation\*.
                   1193: \&\*.ad
                   1194: \&T}
                   1195: \&\*.TE
                   1196: .OU
                   1197: .fi
                   1198: .TS
                   1199: allbox;
                   1200: cfI s   s
                   1201: c   cw(1i)   cw(1i)
                   1202: lp9 lp9 lp9.
                   1203: New York Area Rocks
                   1204: Era    Formation       Age (years)
                   1205: Precambrian    Reading Prong   >1 billion
                   1206: Paleozoic      Manhattan Prong 400 million
                   1207: Mesozoic       T{
                   1208: .na
                   1209: Newark Basin, incl.
                   1210: Stockton, Lockatong, and Brunswick
                   1211: formations; also Watchungs
                   1212: and Palisades.
                   1213: T}     200 million
                   1214: Cenozoic       Coastal Plain   T{
                   1215: On Long Island 30,000 years;
                   1216: Cretaceous sediments redeposited
                   1217: by recent glaciation.
                   1218: .ad
                   1219: T}
                   1220: .TE
                   1221: .IN 2i
                   1222: \&\*.EQ
                   1223: \&delim $$
                   1224: \&\*.EN
                   1225: .sp
                   1226: \&\*. \*. \*.
                   1227: .sp
                   1228: \&\*.TS
                   1229: \&doublebox;
                   1230: \&c c
                   1231: \&l l\*.
                   1232: \&Name\*TDefinition
                   1233: \&\*.sp
                   1234: \&\*.vs +2p
                   1235: \&Gamma\*T$GAMMA (z) = int sub 0 sup inf  t sup {z-1} e sup -t dt$
                   1236: \&Sine\*T$sin (x) = 1 over 2i ( e sup ix - e sup -ix )$
                   1237: \&Error\*T$ roman erf (z) = 2 over sqrt pi int sub 0 sup z e sup {-t sup 2} dt$
                   1238: \&Bessel\*T$ J sub 0 (z) = 1 over pi int sub 0 sup pi cos ( z sin theta ) d theta $
                   1239: \&Zeta\*T$ zeta (s) = sum from k=1 to inf k sup -s ~~( Re~s > 1)$
                   1240: \&\*.vs -2p
                   1241: \&\*.TE
                   1242: .di qq
                   1243: .EQ
                   1244: delim $$
                   1245: .EN
                   1246: .di
                   1247: .rm qq
                   1248: .rs
                   1249: .OU
                   1250: .TS
                   1251: doublebox;
                   1252: c c
                   1253: l l.
                   1254: Name   Definition
                   1255: .sp
                   1256: .vs +2p
                   1257: Gamma  $GAMMA (z) = int sub 0 sup inf  t sup {z-1} e sup -t dt$
                   1258: Sine   $sin (x) = 1 over 2i ( e sup ix - e sup -ix )$
                   1259: Error  $ roman erf (z) = 2 over sqrt pi int sub 0 sup z e sup {-t sup 2} dt$
                   1260: Bessel $ J sub 0 (z) = 1 over pi int sub 0 sup pi cos ( z sin theta ) d theta $
                   1261: Zeta   $ zeta (s) = sum from k=1 to inf k sup -s ~~( Re~s > 1)$
                   1262: .vs -2p
                   1263: .TE
                   1264: .KE
                   1265: .KS
                   1266: .ds : \|:\|
                   1267: .IN 2i
                   1268: \&\*.TS
                   1269: \&box, tab(\*:);
                   1270: \&cb s s s s
                   1271: \&cp-2 s s s s
                   1272: \&c |\|| c | c | c | c
                   1273: \&c |\|| c | c | c | c
                   1274: \&r2 |\|| n2 | n2 | n2 | n\*.
                   1275: \&Readability of Text
                   1276: \&Line Width and Leading for 10-Point Type
                   1277: \&=
                   1278: \&Line\*:Set\*:1-Point\*:2-Point\*:4-Point
                   1279: \&Width\*:Solid\*:Leading\*:Leading\*:Leading
                   1280: \&_
                   1281: \&9 Pica\*:\e-9\*.3\*:\e-6\*.0\*:\e-5\*.3\*:\e-7\*.1
                   1282: \&14 Pica\*:\e-4\*.5\*:\e-0\*.6\*:\e-0\*.3\*:\e-1\*.7
                   1283: \&19 Pica\*:\e-5\*.0\*:\e-5\*.1\*: 0\*.0\*:\e-2\*.0
                   1284: \&31 Pica\*:\e-3\*.7\*:\e-3\*.8\*:\e-2\*.4\*:\e-3\*.6
                   1285: \&43 Pica\*:\e-9\*.1\*:\e-9\*.0\*:\e-5\*.9\*:\e-8\*.8
                   1286: \&\*.TE
                   1287: .OU
                   1288: .TS
                   1289: box, tab(:);
                   1290: cb s s s s
                   1291: cp-2 s s s s
                   1292: c ||c |c |c |c
                   1293: c ||c |c |c |c
                   1294: r2 ||n2 |n2 |n2 |n.
                   1295: Readability of Text
                   1296: Line Width and Leading for 10-Point Type
                   1297: =
                   1298: Line:Set:1-Point:2-Point:4-Point
                   1299: Width:Solid:Leading:Leading:Leading
                   1300: _
                   1301: 9 Pica:\-9.3:\-6.0:\-5.3:\-7.1
                   1302: 14 Pica:\-4.5:\-0.6:\-0.3:\-1.7
                   1303: 19 Pica:\-5.0:\-5.1: 0.0:\-2.0
                   1304: 31 Pica:\-3.7:\-3.8:\-2.4:\-3.6
                   1305: 43 Pica:\-9.1:\-9.0:\-5.9:\-8.8
                   1306: .TE
                   1307: .KE
                   1308: .KS
                   1309: .IN 7i
                   1310: .e2 ac
                   1311: \&\*.TS
                   1312: \&c s
                   1313: \&cip-2 s
                   1314: \&l n
                   1315: \&a n\*.
                   1316: \&Some London Transport Statistics
                   1317: \&(Year 1964)
                   1318: \&Railway route miles\*T244
                   1319: \&Tube\*T66
                   1320: \&Sub-surface\*T22
                   1321: \&Surface\*T156
                   1322: \&\*.sp \*.5
                   1323: \&\*.T&
                   1324: \&l r
                   1325: \&a r\*.
                   1326: \&Passenger traffic \e- railway
                   1327: \&Journeys\*T674 million
                   1328: \&Average length\*T4\*.55 miles
                   1329: \&Passenger miles\*T3,066 million
                   1330: \&\*.T&
                   1331: \&l r
                   1332: \&a r\*.
                   1333: \&Passenger traffic \e- road
                   1334: \&Journeys\*T2,252 million
                   1335: \&Average length\*T2\*.26 miles
                   1336: \&Passenger miles\*T5,094 million
                   1337: \&\*.T&
                   1338: \&l n
                   1339: \&a n\*.
                   1340: \&\*.sp \*.5
                   1341: \&Vehicles\*T12,521
                   1342: \&Railway motor cars\*T2,905
                   1343: \&Railway trailer cars\*T1,269
                   1344: \&Total railway\*T4,174
                   1345: \&Omnibuses\*T8,347
                   1346: \&\*.T&
                   1347: \&l n
                   1348: \&a n\*.
                   1349: \&\*.sp \*.5
                   1350: \&Staff\*T73,739
                   1351: \&Administrative, etc\*.\*T5,582
                   1352: \&Civil engineering\*T5,134
                   1353: \&Electrical eng\*.\*T1,714
                   1354: \&Mech\*. eng\*. \e- railway\*T4,310
                   1355: \&Mech\*. eng\*. \e- road\*T9,152
                   1356: \&Railway operations\*T8,930
                   1357: \&Road operations\*T35,946
                   1358: \&Other\*T2,971
                   1359: \&\*.TE
                   1360: .OU
                   1361: .TS
                   1362: c s
                   1363: cip-2 s
                   1364: l n
                   1365: a n.
                   1366: Some London Transport Statistics
                   1367: (Year 1964)
                   1368: Railway route miles    244
                   1369: Tube   66
                   1370: Sub-surface    22
                   1371: Surface        156
                   1372: .sp .5
                   1373: .T&
                   1374: l r
                   1375: a r.
                   1376: Passenger traffic \(mi railway
                   1377: Journeys       674 million
                   1378: Average length 4.55 miles
                   1379: Passenger miles        3,066 million
                   1380: .T&
                   1381: l r
                   1382: a r.
                   1383: Passenger traffic \(mi road
                   1384: Journeys       2,252 million
                   1385: Average length 2.26 miles
                   1386: Passenger miles        5,094 million
                   1387: .T&
                   1388: l n
                   1389: a n.
                   1390: .sp .5
                   1391: Vehicles       12,521
                   1392: Railway motor cars     2,905
                   1393: Railway trailer cars   1,269
                   1394: Total railway  4,174
                   1395: Omnibuses      8,347
                   1396: .T&
                   1397: l n
                   1398: a n.
                   1399: .sp .5
                   1400: Staff  73,739
                   1401: Administrative, etc.   5,582
                   1402: Civil engineering      5,134
                   1403: Electrical eng.        1,714
                   1404: Mech. eng. \(mi railway        4,310
                   1405: Mech. eng. \(mi road   9,152
                   1406: Railway operations     8,930
                   1407: Road operations        35,946
                   1408: Other  2,971
                   1409: .TE
                   1410: .KE
                   1411: .KS
                   1412: .po \n(POu
                   1413: .sp |\n(.hu
                   1414: .de IN
                   1415: .sp
                   1416: .ne 1i
                   1417: .B
                   1418: Input:
                   1419: .R
                   1420: .sp .5
                   1421: .in +3n
                   1422: .nf
                   1423: ..
                   1424: .de OU
                   1425: .sp
                   1426: .in -3n
                   1427: .ne 1i
                   1428: .B
                   1429: Output:
                   1430: .R
                   1431: .sp .5
                   1432: ..
                   1433: .ns
                   1434: .EQ
                   1435: delim off
                   1436: .EN
                   1437: .IN
                   1438: .ps 8
                   1439: .vs 10
                   1440: \&\*.TS
                   1441: center box;
                   1442: \&cBp+2 s s
                   1443: \&cB s s
                   1444: \&li l lb\*.
                   1445: \&Crisis and Emergency Numbers
                   1446: \&\*.sp
                   1447: \&24-Hour Hotlines
                   1448: \&Abuse\*TChild Abuse Reports\*T1-800-792-8610
                   1449: \&\*.sp \*.5
                   1450: \&Alcohol\*TAla-Call\*T1-800-322-5525
                   1451: \&Alcohol\*TOverdose\*T1-800-962-1253
                   1452: \&\*.sp \*.5
                   1453: \&Drug\*TDrug Hotline\*T1-800-225-0196
                   1454: \&Drug\*TOverdose\*T1-800-962-1253
                   1455: \&Drug\*TNarcotics Anonymous\*T1-800-992-0401
                   1456: \&\*.sp \*.5
                   1457: \&Poison\*TPoison Hotline\*T1-800-962-1253
                   1458: \&\*.sp \*.5
                   1459: \&Runaways\*THotline\*T1-800-231-6946
                   1460: \&Runaways\*TCovenant House\*T1-800-999-9999
                   1461: \&\*.sp \*.5
                   1462: \&\*.T&
                   1463: \&cB s s
                   1464: \&li l lb\*.
                   1465: \&Other Hotlines
                   1466: \&AIDS\*TNational AIDS Hotline\*T1-800-342-AIDS
                   1467: \&AIDS\*TNJ AIDS Hotline\*T1-800-624-2377
                   1468: \&Drug\*TCocaine\*T1-800-COCAINE
                   1469: \&Eating\*TEating Disorders Hotline\*T1-800-624-2268
                   1470: \&Support\*TSupport Group Information\*T1-800-367-6274
                   1471: \&VD\*TVD Information\*T1-800-227-8922
                   1472: \&\*.TE
                   1473: .ne 3.2i
                   1474: .ps 10
                   1475: .vs 12
                   1476: .OU
                   1477: .ps 8
                   1478: .vs 10p
                   1479: .TS
                   1480: center box;
                   1481: cBp+2 s s
                   1482: cB s s
                   1483: li l lb.
                   1484: Crisis and Emergency Numbers
                   1485: .sp .5
                   1486: 24-Hour Hotlines
                   1487: Abuse  Child Abuse Reports     1-800-792-8610
                   1488: .sp .5
                   1489: Alcohol        Ala-Call        1-800-322-5525
                   1490: Alcohol        Overdose        1-800-962-1253
                   1491: .sp .5
                   1492: Drug   Drug Hotline    1-800-225-0196
                   1493: Drug   Overdose        1-800-962-1253
                   1494: Drug   Narcotics Anonymous     1-800-992-0401
                   1495: .sp .5
                   1496: Poison Poison Hotline  1-800-962-1253
                   1497: .sp .5
                   1498: Runaways       Hotline 1-800-231-6946
                   1499: Runaways       Covenant House  1-800-999-9999
                   1500: .sp .5
                   1501: .T&
                   1502: cB s s
                   1503: li l lb.
                   1504: Other Hotlines
                   1505: AIDS   National AIDS Hotline   1-800-342-AIDS
                   1506: AIDS   NJ AIDS Hotline 1-800-624-2377
                   1507: Drug   Cocaine 1-800-COCAINE
                   1508: Eating Eating Disorders Hotline        1-800-624-2268
                   1509: Support        Support Group Information       1-800-367-6274
                   1510: VD     VD Information  1-800-227-8922
                   1511: .TE
                   1512: .ps 10
                   1513: .vs 12p
                   1514: .sp
                   1515: .fi
                   1516: This is a paragraph of normal text placed here only to indicate where
                   1517: the left and right margins are.  In this way the reader can judge
                   1518: the appearance of centered tables or expanded tables, and observe
                   1519: how such tables are formatted.
                   1520: .KE
                   1521: .KS
                   1522: .IN
                   1523: .ps 8
                   1524: .vs 10
                   1525: \&\*.TS
                   1526: \&expand;
                   1527: \&c s s s
                   1528: \&c c c c
                   1529: \&l l n n\*.
                   1530: \&New Jersey Bell Labs Locations
                   1531: \&Name\*TAddress\*TArea Code\*TPhone
                   1532: \&Chester\*TChester, NJ 07930\*T201\*T879-3400
                   1533: \&Corporate Park III\*TSomerset, NJ 08873\*T201\*T271-2300
                   1534: \&Crawford Hill\*THolmdel, NJ 07733\*T201\*T888-7000
                   1535: \&ERC\*THopewell Township, NJ 08525\*T609\*T639-1234
                   1536: \&Freehold\*TFreehold, NJ 07728\*T201\*T577-5000
                   1537: \&Headquarters Plaza\*TMorristown, NJ 07960\*T201\*T898-6000
                   1538: \&Holmdel\*THolmdel, NJ 07733\*T201\*T834-1000
                   1539: \&Knightsbridge\*TPiscataway, NJ 08854\*T201\*T457-2000
                   1540: \&Liberty Corner\*TWarren, NJ 07060\*T201\*T580-4000
                   1541: \&Lincroft\*TLincroft, NJ 07738\*T201\*T576-4000
                   1542: \&MDC\*THopewell Township, NJ 08525\*T609\*T639-6100
                   1543: \&Middletown\*TMiddletown, NJ 07748\*T201\*T957-2000
                   1544: \&Morris\*TMorristown, NJ 07960\*T201\*T898-1000
                   1545: \&Murray Hill\*TMurray Hill, NJ 07974\*T201\*T582-3000
                   1546: \&Parsippany\*TParsippany, NJ 07054\*T201\*T299-3000
                   1547: \&Patriots Plaza\*TMorristown, NJ 07960\*T201\*T829-7200
                   1548: \&Red Hill\*TMiddletown, NJ 07748\*T201\*T949-3000
                   1549: \&Short Hills\*TShort Hills, NJ 07078\*T201\*T564-2000
                   1550: \&Somerset\*TSomerset, NJ 08873\*T201\*T560-1300
                   1551: \&Summit\*TSummit, NJ 07901\*T201\*T522-6555
                   1552: \&Warren Service Center\*TWarren, NJ 07060\*T201\*T756-1527
                   1553: \&West Long Branch\*TWest Long Branch, NJ 07764\*T201\*T870-7000
                   1554: \&Whippany\*TWhippany, NJ 07981\*T201\*T386-3000
                   1555: \&Woodhollow\*TParsippany, NJ 07054\*T201\*T581-3000
                   1556: \&\*.TE
                   1557: .ne 1.3i
                   1558: .OU
                   1559: .TS
                   1560: expand;
                   1561: c s s s
                   1562: c c c c
                   1563: l l n n.
                   1564: New Jersey Bell Labs Locations
                   1565: Name   Address Area Code       Phone
                   1566: Chester        Chester, NJ 07930       201     879-3400
                   1567: Corporate Park III     Somerset, NJ 08873      201     271-2300
                   1568: Crawford Hill  Holmdel, NJ 07733       201     888-7000
                   1569: ERC    Hopewell Township, NJ 08525     609     639-1234
                   1570: Freehold       Freehold, NJ 07728      201     577-5000
                   1571: Headquarters Plaza     Morristown, NJ 07960    201     898-6000
                   1572: Holmdel        Holmdel, NJ 07733       201     834-1000
                   1573: Knightsbridge  Piscataway, NJ 08854    201     457-2000
                   1574: Liberty Corner Warren, NJ 07060        201     580-4000
                   1575: Lincroft       Lincroft, NJ 07738      201     576-4000
                   1576: MDC    Hopewell Township, NJ 08525     609     639-6100
                   1577: Middletown     Middletown, NJ 07748    201     957-2000
                   1578: Morris Morristown, NJ 07960    201     898-1000
                   1579: Murray Hill    Murray Hill, NJ 07974   201     582-3000
                   1580: Parsippany     Parsippany, NJ 07054    201     299-3000
                   1581: Patriots Plaza Morristown, NJ 07960    201     829-7200
                   1582: Red Hill       Middletown, NJ 07748    201     949-3000
                   1583: Short Hills    Short Hills, NJ 07078   201     564-2000
                   1584: Somerset       Somerset, NJ 08873      201     560-1300
                   1585: Summit Summit, NJ 07901        201     522-6555
                   1586: Warren Service Center  Warren, NJ 07060        201     756-1527
                   1587: West Long Branch       West Long Branch, NJ 07764      201     870-7000
                   1588: Whippany       Whippany, NJ 07981      201     386-3000
                   1589: Woodhollow     Parsippany, NJ 07054    201     581-3000
                   1590: .TE
                   1591: .KE
                   1592: .br
                   1593: .ps 8
                   1594: .vs 9p
                   1595: .ne 5i
                   1596: .IN
                   1597: \&\*.TS
                   1598: \&box;
                   1599: \&cb   s   s   s
                   1600: \&c | c | c   s
                   1601: \&ltiw(1i) | ltw(2i) | lp8 | lw(1\*.6i)p8\*.
                   1602: \&Some Interesting Places
                   1603: \&_
                   1604: \&Name\*TDescription\*TPractical Information
                   1605: \&_
                   1606: \&T{
                   1607: \&American Museum of Natural History
                   1608: \&T}\*TT{
                   1609: \&The collections fill 11\*.5 acres (Michelin) or 25 acres (MTA)
                   1610: \&of exhibition halls on four floors\*.  There is a full-sized replica
                   1611: \&of a blue whale and the world's largest star sapphire (stolen in 1964)\*.
                   1612: \&T}\*THours\*T10-5:45 S M Tu Th, 10-9 W Sat\*. Sun\*.
                   1613: \&\e^\*T\e^\*TLocation\*TT{
                   1614: \&Central Park West & 79th St\*.
                   1615: \&T}
                   1616: \&\e^\*T\e^\*TAdmission\*TDonation: $1\*.00 asked
                   1617: \&\e^\*T\e^\*TSubway\*TAA to 81st St\*.
                   1618: \&\e^\*T\e^\*TTelephone\*T212-769-5100
                   1619: \&_
                   1620: \&Bronx Zoo\*TT{
                   1621: \&About a mile long and \*.6 mile wide, this is the largest zoo in America\*.
                   1622: \&A lion eats 18 pounds
                   1623: \&of meat a day while a sea lion eats 15 pounds of fish\*.
                   1624: \&T}\*THours\*TT{
                   1625: \&10-5 M-Sat, to 5:30 Sun
                   1626: \&T}
                   1627: \&\e^\*T\e^\*TLocation\*TT{
                   1628: \&185th St\*. & Southern Blvd, the Bronx\*.
                   1629: \&T}
                   1630: \&\e^\*T\e^\*TAdmission\*T$3.75/1.50 adult/children; Tu,We,Th donation
                   1631: \&\e^\*T\e^\*TSubway\*T2, 5 to East Tremont Ave\*.
                   1632: \&\e^\*T\e^\*TTelephone\*T212-367-1010
                   1633: \&_
                   1634: \&Brooklyn Museum\*TT{
                   1635: \&Five floors of galleries contain American and ancient art\*.
                   1636: \&There are American period rooms and architectural ornaments saved
                   1637: \&from wreckers, such as a classical figure from Pennsylvania Station\*.
                   1638: \&T}\*THours\*T10-5, closed Tues
                   1639: \&\e^\*T\e^\*TLocation\*TT{
                   1640: \&Eastern Parkway & Washington Ave\*., Brooklyn\*.
                   1641: \&T}
                   1642: \&\e^\*T\e^\*TAdmission\*TFree
                   1643: \&\e^\*T\e^\*TSubway\*T2,3 to Eastern Parkway\*.
                   1644: \&\e^\*T\e^\*TTelephone\*T212-367-1010
                   1645: \&_
                   1646: \&T{
                   1647: \&New-York Historical Society
                   1648: \&T}\*TT{
                   1649: \&All the original paintings for Audubon's
                   1650: \&\*.I
                   1651: \&Birds of America
                   1652: \&\*.R
                   1653: \&are here, as are exhibits of American decorative arts, New York history,
                   1654: \&Hudson River school paintings, carriages, and glass paperweights\*.
                   1655: \&T}\*THours\*TT{
                   1656: \&Tues-Sun, 10-5
                   1657: \&T}
                   1658: \&\e^\*T\e^\*TLocation\*TT{
                   1659: \&Central Park West & 77th St\*.
                   1660: \&T}
                   1661: \&\e^\*T\e^\*TAdmission\*TFree
                   1662: \&\e^\*T\e^\*TSubway\*TAA to 81st St\*.
                   1663: \&\e^\*T\e^\*TTelephone\*T212-873-3400
                   1664: \&\*.TE
                   1665: .BP
                   1666: .ps \n(PS
                   1667: .vs \n(VSp
                   1668: .OU
                   1669: .fi
                   1670: .rr 10 11 12 13 14 15 16 17 18 19 20 21 22 98 99
                   1671: .rr 60 61 62 63 64 65 66 67 68 69 70
                   1672: .rr 43 44 45 46 47 48 49 50 51 52 53
                   1673: .rr 83 84 85 86 87 88 89 90 91 92 93
                   1674: .rr #a
                   1675: .rr #b
                   1676: .rr #c
                   1677: .rr #d
                   1678: .rr #e
                   1679: .rr YY
                   1680: .rr OJ
                   1681: .rr P
                   1682: .rr AV CW GW DW FL KN SJ A1 A2 A3 I1 I2 I3
                   1683: .in 0
                   1684: .hy 1
                   1685: .1C
                   1686: .TS
                   1687: box;
                   1688: cb   s   s   s
                   1689: c | c | c   s
                   1690: ltiw(1i) | ltw(2i) | lp8| lw(1.6i)p8.
                   1691: Some Interesting Places
                   1692: _
                   1693: Name   Description     Practical Information
                   1694: _
                   1695: T{
                   1696: American Museum of Natural History
                   1697: T}     T{
                   1698: The collections fill 11.5 acres (Michelin) or 25 acres (MTA)
                   1699: of exhibition halls on four floors.  There is a full-sized replica
                   1700: of a blue whale and the world's largest star sapphire (stolen in 1964).
                   1701: T}     Hours   10-5:45 S M Tu Th, 10-9 W Sat. Sun.
                   1702: \^     \^      Location        T{
                   1703: Central Park West & 79th St.
                   1704: T}
                   1705: \^     \^      Admission       Donation: $1.00 asked
                   1706: \^     \^      Subway  AA to 81st St.
                   1707: \^     \^      Telephone       212-769-5100
                   1708: _
                   1709: Bronx Zoo      T{
                   1710: About a mile long and .6 mile wide, this is the largest zoo in America.
                   1711: A lion eats 18 pounds
                   1712: of meat a day while a sea lion eats 15 pounds of fish.
                   1713: T}     Hours   T{
                   1714: 10-5 M-Sat, to 5:30 Sun
                   1715: T}
                   1716: \^     \^      Location        T{
                   1717: 185th St. & Southern Blvd, the Bronx.
                   1718: T}
                   1719: \^     \^      Admission       $3.75/1.50 adult/children; Tu,We,Th donation
                   1720: \^     \^      Subway  2, 5 to East Tremont Ave.
                   1721: \^     \^      Telephone       212-367-1010
                   1722: _
                   1723: Brooklyn Museum        T{
                   1724: Five floors of galleries contain American and ancient art.
                   1725: There are American period rooms and architectural ornaments saved
                   1726: from wreckers, such as a classical figure from Pennsylvania Station.
                   1727: T}     Hours   10-5, closed Tues
                   1728: \^     \^      Location        T{
                   1729: Eastern Parkway & Washington Ave., Brooklyn.
                   1730: T}
                   1731: \^     \^      Admission       Free
                   1732: \^     \^      Subway  2,3 to Eastern Parkway.
                   1733: \^     \^      Telephone       718-638-5000
                   1734: _
                   1735: T{
                   1736: New-York Historical Society
                   1737: T}     T{
                   1738: All the original paintings for Audubon's
                   1739: .I
                   1740: Birds of America
                   1741: .R
                   1742: are here, as are exhibits of American decorative arts, New York history,
                   1743: Hudson River school paintings, carriages, and glass paperweights.
                   1744: T}     Hours   T{
                   1745: Tues-Sun, 10-5
                   1746: T}
                   1747: \^     \^      Location        T{
                   1748: Central Park West & 77th St.
                   1749: T}
                   1750: \^     \^      Admission       Free
                   1751: \^     \^      Subway  AA to 81st St.
                   1752: \^     \^      Telephone       212-873-3400
                   1753: .TE
                   1754: .SP
                   1755: .2C
                   1756: .rr 40
                   1757: .rr 41
                   1758: .rr 42
                   1759: .rr 43
                   1760: .rr 80
                   1761: .rr 81
                   1762: .rr 82
                   1763: .rr 83
                   1764: .rr 60
                   1765: .rr 61
                   1766: .rr 62
                   1767: .rr 63
                   1768: .rr #a
                   1769: .rr #b
                   1770: .rr #c
                   1771: .rr #d
                   1772: .rr #e
                   1773: .rr ##
                   1774: .fi
                   1775: .FC
                   1776: .SP
                   1777: .2C
                   1778: .NH
                   1779: Acknowledgments.
                   1780: .PP
                   1781: Many thanks are due to J. C. Blinn, who has done a large amount
                   1782: of testing and assisted with the design of the program.
                   1783: He has also written many of the more intelligible sentences
                   1784: in this document and helped edit all of it.
                   1785: All phototypesetting programs on
                   1786: .UX
                   1787: are dependent on the work
                   1788: of the late J. F. Ossanna, whose assistance with this program in particular
                   1789: had been most helpful.
                   1790: This program is patterned on a table formatter originally
                   1791: written by J. F. Gimpel.
                   1792: The assistance of
                   1793: T. A. Dolotta, B. W. Kernighan, and J. N. Sturman
                   1794: is gratefully acknowledged.
                   1795: .NH
                   1796: References.
                   1797: .LP
                   1798: |reference_placement
                   1799: .FC
                   1800: .1C
                   1801: .BP
                   1802: .NH
                   1803: List of Tbl Command Characters and Words
                   1804: .LP
                   1805: .EQ
                   1806: delim $$
                   1807: gfont roman
                   1808: .EN
                   1809: .TS
                   1810: center;
                   1811: cI cI cI
                   1812: aFCW3 l n.
                   1813: Command        Meaning Section
                   1814: a A    Alphabetic subcolumn    2.2
                   1815: allbox Draw box around all items       2.1
                   1816: b B    Boldface item   2.2
                   1817: box    Draw box around table   2.1
                   1818: c C    Centered column 2.2
                   1819: center Center table in page    2.1
                   1820: delim(\fIxy\|\fP)      Set \fIeqn\fP delimiters        2.1
                   1821: doublebox      Doubled box around table        2.1
                   1822: e E    Equal width columns     2.2
                   1823: expand Make table full line width      2.1
                   1824: f F    Font change     2.2
                   1825: i I    Italic item     2.2
                   1826: l L    Left adjusted column    2.2
                   1827: linesize(\fIn\|\fP)\ \         Set point size for drawing lines        2.1
                   1828: n N    Numerical column        2.2
                   1829: \fInnn\fR      Column separation       2.2
                   1830: p P    Point size change       2.2
                   1831: r R    Right adjusted column   2.2
                   1832: s S    Spanned item    2.2
                   1833: t T    Vertical spanning at top        2.2
                   1834: tab(\fIx\|)    Change data separator character 2.1
                   1835: T{ T}  Text block      2.3
                   1836: u U    Staggered columns       2.2
                   1837: v V    Vertical spacing change 2.2
                   1838: w W    Minimum width value     2.2
                   1839: z Z    Ignore width of data in this column     2.2
                   1840: \&.\fIxx\fR    Included \fItroff\fR command    2.3
                   1841: |      Vertical line   2.2
                   1842: ||     Double vertical line    2.2
                   1843: ^      Vertical span   2.2
                   1844: \e^    Vertical span   2.3
                   1845: \&=    Double horizontal line  2.3
                   1846: \&_    Horizontal line 2.3
                   1847: \e_    Short horizontal line   2.3
                   1848: \&\eR\fIx\fR   Repeat character        2.3
                   1849: .TE

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