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NAME
makeindex - a general purpose, formatter-independent index processor
SYNOPSIS
makeindex [-c] [-g] [-i] [-l] [-o ind] [-p num] [-q] [-r] [-s sfile] [-t log] [-L] [-T]
[idx0 idx1 idx2...]
DESCRIPTION
The program makeindex is a general purpose hierarchical index generator; it accepts one or
more input files (often produced by a text formatter such as TeX (tex(1L)) or troff(1),
sorts the entries, and produces an output file which can be formatted. The index can have
up to three levels (0, 1, and 2) of subitem nesting. The way in which words are flagged
for indexing within the main document is specific to the formatter used; makeindex does
not automate the process of selecting these words. As the output index is hierarchical,
makeindex can be considered complimentary to the awk(1)-based make.index(1L) system of
Bentley and Kernighan, which is specific to troff(1), generates non-hierarchical indices,
and employs a much simpler syntax for indicating index entries. For illustration of use
with troff and TeX, see the section EXAMPLES below.
The formats of the input and output files are specified in a style file; by default, input
is assumed to be a .idx file, as generated by LaTeX.
Unless specified explicitly, the base name of the first input file (idx0) is used to
determine the names of other files. For each input file name specified, a file of that
name is sought. If this file is not found and the file name has no extension, the
extension .idx is appended. If no file with this name is found, makeindex aborts.
If exactly one input file was given and no explicit style file was specified using -s,
makeindex uses a file with the extension .mst as default style file (when present).
For important notes on how to select index keywords, see the document by Lamport cited
below. As an issue separate from selecting index keywords, a systematic mechanism for
placing index terms in a document is suggested in Index Preparation and Processing, a
paper cited below.
OPTIONS
-c Compress intermediate blanks (ignoring leading and trailing blanks and tabs).
By default, blanks in the index key are retained.
-g Employ German word ordering in the index, in accord with rules set forth in DIN
5007. By default, makeindex employs a word ordering in which precedence is:
symbols, numbers, uppercase letters, lowercase letters. The sequence in German
word ordering is: symbols, lowercase letters, uppercase letters, numbers.
Additionally, this option enables makeindex to recognize the German TeX-commands
{"a, "o, "u and "s} as {ae, oe, ue and ss} during the sorting of the entries.
The quote character must be redefined in a style file (for example, redefine
quote as '+'). If the quote character is not redefined, makeindex will produce
an error message and abort.
-i Take input from stdin. When this option is specified and -o is not, output is
written to stdout.
-l Letter ordering; by default, word ordering is used (see the ORDERING section).
-o ind Employ ind as the output index file. By default, the file name is created by
appending the extension .ind to the base name of the first input file (idx0).
-p num Set the starting page number of the output index file to be num (useful when the
index file is to be formatted separately). The argument num may be numerical or
one of the following:
any The starting page is the last source page number plus 1.
odd The starting page is the first odd page following the last source page
number.
even The starting page is the first even page following the last source
page number.
The last source page is obtained by searching backward in the log file for the
first instance of a number included within paired square brackets ([...]). If a
page number is missing or the log file is not found, no attempt will be made to
set the starting page number. The source log file name is determined by
appending the extension .log to the base name of the first input file (idx0).
-q Quiet mode; send no messages to stderr. By default, progress and error messages
are sent to stderr as well as to the transcript file.
-r Disable implicit page range formation; page ranges must be created by using
explicit range operators; see SPECIAL EFFECTS below. By default, three or more
successive pages are automatically abbreviated as a range (e.g. 1—5).
-s sty Employ sty as the style file (no default). The environment variable INDEXSTYLE
defines the path where the style file should be found.
-t log Employ log as the transcript file. By default, the file name is created by
appending the extension .ilg to the base name of the first input file (idx0).
-L sort based on locale settings. Not available on all systems.
-T special support for Thai documents. Not available on all systems.
STYLE FILE
The style file informs makeindex about the format of the .idx input files and the intended
format of the final output file; examples appear below. This file can reside anywhere in
the path defined by the environment variable INDEXSTYLE. The style file contains a list
of <specifier, attribute> pairs. There are two types of specifiers: input and output.
Pairs do not have to appear in any particular order. A line begun by `%' is a comment.
In the following list of specifiers and arguments, <string> is an arbitrary string
delimited by double quotes ("..."), <char> is a single letter embraced by single quotes
('...'), and <number> is a nonnegative integer. The maximum length of a <string> is 2048.
A literal backslash or quote must be escaped (by a backslash). Anything not specified in
the style file will be assigned a default value, which is shown at the head of the
rightmost column.
INPUT STYLE SPECIFIERS
actual <char> ´@´
Symbol indicating that the next entry is to appear in the output
file.
arg_close <char> ´}´
Closing delimiter for the index entry argument.
arg_open <char> ´{´
Opening delimiter for the index entry argument.
encap <char> ´|´
Symbol indicating that the rest of the argument list is to be
used as the encapsulating command for the page number.
escape <char> ´\\´
Symbol which escapes the following letter, unless its preceding
letter is escape. Note: quote is used to escape the letter which
immediately follows it, but if it is preceded by escape, it is
treated as a ordinary character. These two symbols must be
distinct.
keyword <string> "\\indexentry"
Command which tells makeindex that its argument is an index
entry.
level <char> ´!´
Delimiter denoting a new level of subitem.
page_compositor <string> "-"
Delimiter separating parts of a composite page number (see
SPECIAL EFFECTS below).
quote <char> ´"´
Note: quote is used to escape the letter which immediately
follows it, but if it is preceded by escape, it is treated as a
ordinary character. These two symbols must be distinct.
range_close <char> ´)´
Closing delimiter indicating the end of an explicit page range.
range_open <char> ´(´
Opening delimiter indicating the beginning of an explicit page
range.
OUTPUT STYLE SPECIFIERS
preamble <string> "\\begin{theindex}\n"
Preamble of output file.
postamble <string> "\n\n\\end{theindex}\n"
Postamble of output file.
setpage_prefix <string> "\n \\setcounter{page}{"
Prefix of command which sets the starting page number.
setpage_suffix <string> "}\n"
Suffix of command which sets the starting page number.
group_skip <string> "\n\n \\indexspace\n"
Vertical space to be inserted before a new group begins.
headings_flag <string> 0
Flag indicating treatment of new group headers, which are
inserted when before a new group (symbols, numbers, and the 26
letters): positive values cause an uppercase letter to be
inserted between prefix and suffix, and negative values cause a
lowercase letter to be inserted (default is 0, which produces no
header).
heading_prefix <string> ""
Header prefix to be inserted before a new letter begins.
symhead_positive <string>
"Symbols"
Heading for symbols to be inserted if headings_flag is positive.
symhead_negative <string>
"symbols"
Heading for symbols to be inserted if headings_flag is negative.
numhead_positive <string>
"Numbers"
Heading for numbers to be inserted if headings_flag is positive.
numhead_negative <string>
"numbers"
Heading for numbers to be inserted if headings_flag is negative.
item_0 <string> "\n \\item "
Command to be inserted between two primary (level 0) items.
item_1 <string> "\n \\subitem "
Command to be inserted between two secondary (level 1) items.
item_2 <string> "\n \\subsubitem "
Command to be inserted between two level 2 items.
item_01 <string> "\n \\subitem "
Command to be inserted between a level 0 item and a level 1 item.
item_x1 <string> "\n \\subitem "
Command to be inserted between a level 0 item and a level 1 item,
where the level 0 item does not have associated page numbers.
item_12 <string> "\n \\subsubitem "
Command to be inserted between a level 1 item and a level 2 item.
item_x2 <string> "\n \\subsubitem "
Command to be inserted between a level 1 item and a level 2 item,
where the level 1 item does not have associated page numbers.
delim_0 <string> ", "
Delimiter to be inserted between a level 0 key and its first page
number (default: comma followed by a blank).
delim_1 <string> ", "
Delimiter to be inserted between a level 1 key and its first page
number (default: comma followed by a blank).
delim_2 <string> ", "
Delimiter to be inserted between a level 2 key and its first page
number (default: comma followed by a blank).
delim_n <string> ", "
Delimiter to be inserted between two page numbers for the same
key in any level (default: comma followed by a blank).
delim_r <string> "--"
Delimiter to be inserted between the starting and ending page
numbers of a range.
delim_t <string> ""
Delimiter to be inserted at the end of a page list. This
delimiter has no effect on entries which have no associated page
list.
encap_prefix <string> "\\"
First part of prefix for the command which encapsulates the page
number.
encap_infix <string> "{"
Second part of prefix for the command which encapsulates the page
number.
encap_suffix <string> "}".
Suffix for the command which encapsulates the page number.
line_max <number> 72
Maximum length of a line in the output, beyond which a line
wraps.
indent_space <string> "\t\t"
Space to be inserted in front of a wrapped line (default: two
tabs).
indent_length <number> 16
Length of indent_space (default: 16, equivalent to 2 tabs).
suffix_2p <string> ""
Delimiter to replace the range delimiter and the second page
number of a two page list. When present, it overrides delim_r.
Example: "f.".
suffix_3p <string> ""
Delimiter to replace the range delimiter and the second page
number of a three page list. When present, it overrides delim_r
and suffix_mp. Example: "ff.".
suffix_mp <string> ""
Delimiter to replace the range delimiter and the second page
number of a multiple page list (three or more pages). When
present, it overrides delim_r. Example: "f.".
EXAMPLES
TeX EXAMPLE
The following example shows a style file called book.ist, which defines an index for a
book which can be formatted independently of the main source:
preamble
"\\documentstyle[12pt]{book}
\\begin{document}
\\begin{theindex}
{\\small\n"
postamble
"\n\n}
\\end{theindex}
\\end{document}\n"
Assuming that a particular book style requires the index (as well as any chapters) to
start from an odd page number, and that the input file is named foo.idx, the following
command line produces output in file footmp.ind:
makeindex -s book.ist -o footmp.ind -p odd foo
Here a non-default output file name is used to avoid clobbering the output for the book
itself (presumably foo.dvi, which would have been the default name for the index output
file!).
TROFF EXAMPLE
A sample control file for creating an index, which we will assume resides in the file
sample.ist:
keyword "IX:"
preamble
".\\\" start of index output
\".\\\" enter two column mode
.2C
.SH
.ce
INDEX
.XS
INDEX
.XE
.R
.ps 9p
.vs 11p
.sp
.de I1
.ti 0.25i
..
.de I2
.ti 0.5i
.."
postamble "\n.\\\" end of index output"
setpage_prefix "\n.nr % "
setpage_suffix ""
group_skip "\n.sp 1.0"
headings_flag 1
heading_prefix "\n.IS\n"
heading_suffix "\n.IE"
item_0 "\n.br\n"
item_1 "\n.I1\n"
item_2 "\n.I2\n"
item_01 "\n.I1\n"
item_x1 "\n.I1\n"
item_12 "\n.I2\n"
item_x2 "\n.I2\n"
delim_0 ", "
delim_1 ", "
delim_2 ", "
delim_r "-"
delim_t "."
encap_prefix "\\fB"
encap_infix ""
encap_suffix "\\fP"
indent_space ""
indent_length 0
The local macro package may require modification, as in this example of an extension to
the -ms macros (note that at some sites, this macro should replace a pre-existing macro of
the same name):
.
.de IX
.ie '\\n(.z'' .tm IX: \\$1 \\$2 \\$3 \\$4 \\$5 \\$6 \\$7 \\$8 \\$9 {\\n(PN}
.el \\!.IX \\$1 \\$2 \\$3 \\$4 \\$5 \\$6 \\$7 \\$8 \\$9 {\\n(PN}
..
(note that the string {\\n(PN} is separated from the rest of the line by a tab. If your
local macro package does not contain this extension, just include those lines at the
beginning of your file. Here is a simple troff(1) input file, which we will assume is
named sample.txt:
This is a sample file to test the \fImakeindex\fP(1L)
program, and see
.IX {indexing!programs!C language}
.IX {makeindex@\fImakeindex\fP(1L)}
.bp
.rs
.IX {Knuth}
.IX {typesetting!computer-aided}
how well it functions in the \fItroff\fP(1) environment.
Note that index entries are indicated by the .IX macro, which causes the following text to
be written to stdout along with the current page number.
CREATING THE INDEX FILE IN THE BOURNE SHELL
To create an input file for makeindex, in the Bourne shell environment, do the equivalent
at your site of the command:
psroff -ms -Tpsc -t sample.txt > /dev/null 2> sample.tmp
Some sites will require ditroff instead of psroff. To filter out any genuine error
messages, invoke grep(1):
grep '^IX: ' sample.tmp > sample.idx
CREATING THE INDEX FILE USING UCSF ENHANCED TROFF/TRANSCRIPT
With UCSF Enhanced troff/TRANSCRIPT, the -I option of psroff(1L) can produce both
formatter output and an index file:
psroff -ms -I sample.inp -Tpsc sample.txt
If it is wished to suppress the formatter output:
psroff -ms -I sample.inp -Tpsc -t sample.txt > /dev/null
COMPLETING THE INDEX
Any of the above procedures leaves the input for makeindex in sample.inp. The next step
is to invoke makeindex:
makeindex -s sample.ist sample.idx
This leaves troff(1)-ready output in the file sample.ind.
ORDERING
By default, makeindex assumes word ordering; if the -l option is in effect, letter
ordering is used. In word ordering, a blank precedes any letter in the alphabet, whereas
in letter ordering, it does not count at all. This is illustrated by the following
example:
word order letter order
sea lion seal
seal sea lion
Numbers are always sorted in numeric order. For instance,
9 (nine), 123
10 (ten), see Derek, Bo
Letters are first sorted without regard to case; when words are identical, the uppercase
version precedes its lowercase counterpart.
A special symbol is defined here to be any character not appearing in the union of digits
and the English alphabetic characters. Patterns starting with special symbols precede
numbers, which precede patterns starting with letters. As a special case, a string
starting with a digit but mixed with non-digits is considered to be a pattern starting
with a special character.
SPECIAL EFFECTS
Entries such as
\indexentry{alpha}{1}
\indexentry{alpha!beta}{3}
\indexentry{alpha!beta!gamma}{10}
in the input file will be converted to
\item alpha, 1
\subitem beta, 3
\subsubitem gamma, 10
in the output index file. Notice that the level symbol (`!') is used above to delimit
hierarchical levels.
It is possible to make an item appear in a designated form by using the actual (`@')
operator. For instance,
\indexentry{alpha@{\it alpha\/}}{1}
will become
\item {\it alpha\/}, 1
after processing. The pattern preceding `@' is used as sort key, whereas the one
following it is written to the output file. Note that two appearances of the same key,
one with and one without the actual operator, are regarded as distinct entries.
The item, subitem, and subsubitem fields may have individual sort keys:
\indexentry{aa@{\it aa\/}!bb@{\it bb\/}!cc@{\it cc\/}}{1}
This will be converted to
\item {\it aa}, 1
\subitem {\it bb}, 3
\subsubitem {\it cc}, 10
It is possible to encapsulate a page number with a designated command using the encap
(`|') operator:
\indexentry{alpha|bold}{1}
will be converted to
\item alpha, \bold{1}
where, with a suitable definition for TeX, \bold{n} will expand to {\bf n}. In this
example, the three output attributes associated with page encapsulation encap_prefix,
encap_infix, and encap_suffix, correspond to backslash, left brace, and right brace,
respectively. This mechanism allows page numbers to be set in different fonts. For
example, the page where the definition of a keyword appears can be in one font, the
location of a primary example can be in another font, and other appearances in yet a third
font.
The encap operator can also be used to create cross references in the index:
\indexentry{alpha|see{beta}}{1}
will become
\item alpha, \see{beta}{1}
in the output file, where
\see{beta}{1}
will expand to
{\it see\/} beta
Note that in a cross reference like this the page number disappears.
A pair of encap concatenated with range_open (`|(') and range_close (`|)') creates an
explicit page range:
\indexentry{alpha|(}{1}
\indexentry{alpha|)}{5}
will become
\item alpha, 1—5
Intermediate pages indexed by the same key will be merged into the range implicitly. This
is especially useful when an entire section about a particular subject is to be indexed,
in which case only the range opening and closing operators need to be inserted at the
beginning and end of the section. Explicit page range formation can also include an extra
command to set the page range in a designated font:
\indexentry{alpha|(bold}{1}
\indexentry{alpha|)}{5}
will become
\item alpha, \bold{1--5}
Several potential problems are worth mentioning. First, entries like
\indexentry{alpha|(}{1}
\indexentry{alpha|bold}{3}
\indexentry{alpha|)}{5}
will be interpreted as
\item alpha, \bold{3}, 1--5
but with a warning message in the transcript about encountering an inconsistent page
encapsulator. An explicit range beginning in a Roman page number and ending in Arabic is
also considered an error. In this instance, (if possible) the range is broken into two
subranges, one in Roman and the other in Arabic. For instance,
\indexentry{alpha|(}{i}
\indexentry{alpha}{iv}
\indexentry{alpha}{3}
\indexentry{alpha|)}{7}
will be turned into
\item alpha, i--iv, 3--7
with a warning message in the transcript file complaining about an illegal range
formation.
Every special symbol mentioned in this section may be escaped by the quote operator (`"').
Thus
\indexentry{alpha"@beta}{1}
will actually become
\item alpha@beta, 1
as a result of executing makeindex. The quoting power of quote is eliminated if it is
immediately preceded by escape (`\'). For example,
\indexentry{f\"ur}{1}
becomes
\item f\"ur, 1
which represents an umlaut-accented `u' to the TeX family of processors.
A page number can be a composite of one or more fields separated by the delimiter bound to
page_compositor (`-'), e.g., II-12 for page 12 of Chapter II. Page numbers may contain up
to ten fields.
Since version 2.11 of makeindex, the quote operator may quote any character in the range 1
... 255. Character 0 is excluded because it is used internally in the makeindex source
code as a string terminator. With this change, sort keys can be created for all eight-bit
characters except 0. The sorting order is
punctuation characters (in ASCII order),
digits,
control characters (1 ... 31),
space (32),
letters (ignoring case),
characters 127 ... 255.
Here is an example showing the indexing of all printable ASCII characters other than
letters and digits, assuming the default TeX format. For convenience, the page number
references are the corresponding ASCII ordinal values.
\indexentry{" @" (space)}{32}
\indexentry{"!@"! (exclamation point)}{33}
\indexentry{""@"" (quotation mark)}{34}
\indexentry{"#@"\# (sharp sign)}{35}
\indexentry{"$@"\$ (dollar sign)}{36}
\indexentry{"%@"\% (percent sign)}{37}
\indexentry{"&@"\& (ampersand)}{38}
\indexentry{"<@"$<$ (left angle bracket)}{60}
\indexentry{"=@"= (equals)}{61}
\indexentry{">@"$>$ (right angle bracket)}{62}
\indexentry{"?@"? (query)}{63}
\indexentry{"@@"@ (at sign)}{64}
\indexentry{"[@"[ (left square bracket)}{91}
\indexentry{"\@"\verb=\= (backslash)}{92}
\indexentry{"]@"] (right square bracket)}{93}
\indexentry{"^@"\verb=^= (caret)}{94}
\indexentry{"_@"\verb=_= (underscore)}{95}
\indexentry{"`@"\verb=~= (grave accent)}{96}
\indexentry{"{@"\"{ (left brace)}{123}
\indexentry{"|@"\verb="|= (vertical bar)}{124}
\indexentry{"}@"\"} (right brace)}{125}
\indexentry{"~@"\verb=~= (tilde)}{126}
Characters in the actual fields following the `@' character which have special
significance to TeX must be represented as control sequences, or as math mode characters.
Note particularly how the entries for the at sign, left and right braces, and the vertical
bar, are coded. The index file output by makeindex for this example looks like this:
\begin{theindex}
\item ! (exclamation point), 33
\item " (quotation mark), 34
\item \# (sharp sign), 35
\item \$ (dollar sign), 36
\item \% (percent sign), 37
\item \& (ampersand), 38
\item $<$ (left angle bracket), 60
\item = (equals), 61
\item $>$ (right angle bracket), 62
\item ? (query), 63
\item @ (at sign), 64
\item [ (left square bracket), 91
\item \verb=\= (backslash), 92
\item ] (right square bracket), 93
\item \verb=^= (caret), 94
\item \verb=_= (underscore), 95
\item \verb=~= (grave accent), 96
\item \{ (left brace), 123
\item \verb=|= (vertical bar), 124
\item \} (right brace), 125
\item \verb=~= (tilde), 126
\indexspace
\item (space), 32
\end{theindex}
FILES
makeindex executable file
$TEXMFMAIN/tex/plain/misc/idxmac.tex
TeX macro file used by makeindex
$TEXMFMAIN/tex/latex/base/makeidx.sty
TeX macro file used by makeindex
SEE ALSO
ditroff(1L), latex(1L), make.index (1L), qsort(3), tex(1L), troff(1L)
UCSF Enhanced troff/TRANSCRIPT — An Overview, R. P. C. Rodgers and Conrad Huang, LSMB
Technical Report 90-2, UCSF School of Pharmacy, San Francisco, 1990.
Index Preparation and Processing, Pehong Chen and Michael A. Harrison, Software: Practice
and Experience, 19(9), 897–915, September 1988.
Automating Index Preparation, Pehong Chen and Michael A. Harrison. Technical Report
87/347, Computer Science Division, University of California, Berkeley, 1987 (a LaTeX
document supplied with makeindex).
MakeIndex: An Index Processor for LaTeX, Leslie Lamport, February 1987 (a LaTeX document
supplied with makeindex).
Tools for Printing Indices, Jon L. Bentley and Brian W. Kernighan, Electronic Publishing —
Origination, Dissemination, and Design, 1(1), 3–18, June 1988 (also available as:
Computing Science Technical Report No. 128, AT&T Bell Laboratories, Murray Hill, NJ 07974,
1986).
AUTHOR
Pehong Chen, Chen & Harrison International Systems, Inc. Palo Alto, California, USA.
Manual page extensively revised and corrected, and troff(1) examples created by Rick P. C.
Rodgers, UCSF School of Pharmacy <rodgers@cca.ucsf.edu>.
ACKNOWLEDGMENTS
Leslie Lamport contributed significantly to the design. Michael Harrison provided
valuable comments and suggestions. Nelson Beebe improved on the portable version, and
maintains the source distribution for the TeX Users Group. Andreas Brosig contributed to
the German word ordering. The modification to the -ms macros was derived from a method
proposed by Ravi Sethi of AT&T Bell Laboratories. The LOG and CONTRIB files in the
makeindex source distribution record other contributions.