TYPOG-GREP(1)

NAME
typog-grep - specialized grep for typog-inspect elements in LaTeX log files

SYNOPSIS

typog-grep -a|--all|--any [OPTION...] LOG-FILE...
typog-grep [OPTION...] REGEXP LOG-FILE...

The first form, ``discovery mode'', shows all IDs of
        <typog-inspect id="ID" ...>

elements in LOG-FILE.

The second form shows the contents, LOG-DATA, of the elements
        <typog-inspect id="ID" ...>
        LOG-DATA
        </typog-inspect>

whose IDs match REGEXP in LOG-FILE.

If no LOG-FILE is given read from stdin. The filename "-" is synonymous to stdin.

DESCRIPTION
typog-grep is a tailored post-processor for LaTeX log files and the "typoginspect" environment as provided by the LaTeX package typog. It shares more with the venerable sgrep <https://www.cs.helsinki.fi/u/jjaakkol/sgrep.html> than with POSIX grep <https://pubs.opengroup.org/onlinepubs/9699919799/utilities/grep.html>.

In the LaTeX source file the user brackets her text or code in a "typoginspect" environment:
        \begin{typoginspect}{ID}
        TEXT-OR-CODE-TO-INVESTIGATE
        \end{typoginspect}

where ID is used to identify one or more bracketed snippets. ID does not have to be unique. The REGEXP mechanism makes it easy to select groups of related IDs if they are named accordingly.

In LOG-FILE the result of the environment shows up, packed with tracing information, as
        <typog-inspect id="ID" job="JOB-NAME" line="LINE-NUMBER" page="PAGE-NUMBER">
        LOG-DATA
        </typog-inspect>

where all the capital-letter sequences are meta-variables and in particular JOB-NAME is the expansion of "\jobname", LINE-NUMBER is the LaTeX source file line number of the beginning of the "typoginspect" environment, and PAGE-NUMBER is the page where the output of "TEXT-OR-CODE-TO-INVESTIGATE" occurs.

typog-grep reveals the contents of LOG-FILE between "<typog-inspect id="ID" ...>" and "</typog-inspect>" excluding the XML-tags themselves. Access the JOB-NAME, LINE-NUMBER, and PAGE-NUMBER with the commandline options --job-name, --line-number, and --page-number, respectively. Use --id to show the name of the IDs that matched REGEXP.

"typoginspect" environments can be nested. typog-grep respects the nesting, i.e., if the ID of the nested environment does not match REGEXP it will not be included in the program's output.

OPTIONS
The list of options is sorted by the names of the long options.

-a, --all, --any
    ID-discovery mode: Discover all "typog-inspect" elements independent of any matching patterns and print their IDs. The results are printed in their order of occurrence in the respective LOG-FILEs. Pipe the output into sort to get alphabetically ordered IDs.

    Augment with options --job-name, --line-number, --log-line-number, or --page-number for more information.

--color, colour WHEN
    Colorize specific log contents for the matching IDs. The argument WHEN determines when to apply color: "always", "never", or "auto". The setting "auto" checks whether standard output has been redirected. This is the default.

-C, --config KEY=VALUE[:KEY=VALUE[:...]]
    Set one or more configuration KEY to VALUE pairs. See section "CONFIGURATION" for a description of all available configuration items. Use option --show-config to display the default configuration.

--debug
    Turn on debug output on stderr.

-E, --encoding ENCODING
    Set the ENCODING of LOG-FILE for the translation to UTF-8. The default is unset.

    Use this option to get rid of pesky "<HEX-DIGITS>" escapes on UTF-8 terminals. See option --show-encodings for the known encodings and Encode::Supported for a summary of all encodings. See also section "Some Common Encodings".

    Apply iconv <https://pubs.opengroup.org/onlinepubs/9699919799/utilities/iconv.html> (POSIX) or recode <https://github.com/rrthomas/recode/> (GNU) on LOG-FILE before this tool to avoid having to use option --encoding.

-h, --help
    Display brief help then exit.

-i, --[no-]id
    Print the actual ID-name that matched REGEXP. Control the appearance of the matching ID with configuration item "id-heading".

-y, --[no-]ignore-case
    Match IDs while ignoring case distinctions in patterns and data.

-j, --[no-]job-name
    Print the "\jobname" that latex associated with the input file.

-n, --[no-]line-number
    Print the line number where the "typoginspect" environment was encountered in the LaTeX source file.

-N, --[no-]log-line-number
    Print the line number of the log-file where the current line was encountered.

-p, --[no-]page-number
    Print page number where the contents of the "typoginspect" environment starts in the typeset document.

-P, --[no-]pager
    Redirect output from stdout to the configured pager.

--show-config
    Show the default configuration and exit.

--show-encodings
    Show all known encodings and exit.

-V, --version
    Show version information and exit.

-w, --[no-]word-regexp
    Match only whole words.

CONFIGURATION

"id-format"=FORMAT
    Control the FORMAT for printing matching ids in inline-mode, where FORMAT is passed to Perl's "printf". Default: %s:.

"id-heading"=0|1
    Choose between printing the matching IDs with option --id: Inline (0) or heading before the matching data (1). Default: 0.

"id-heading-format"=FORMAT
    Control the FORMAT for printing matching IDs in heading-mode, where FORMAT is passed to Perl's "printf". Default: "--> %s <--".

"id-indent"=INDENT
    Indentation of nested typog-inspect tags. Only used in ``discovery mode'' (first form), i.e., if --all is active. Default: 8.

"id-max-length"=MAXIMUM-LENGTH
    Set the maximum length of a matching ID for printing. It a matching ID exceeds this length it will be truncated and the last three characters (short of MAXIMUM-LENGTH) will be replaced by dots. Default: 40.

"line-number-format"=FORMAT
    Control the FORMAT for printing TeX source line numbers, where FORMAT is passed to Perl's "printf". Default: %5d.

"log-line-number-format"=FORMAT
    Control the FORMAT for printing log line numbers, where FORMAT is passed to Perl's "printf". Default: %6d.

"page-number-format"=FORMAT
    Control the FORMAT for printing page numbers, where FORMAT is passed to Perl's "printf". Default: "[%3d]".

"pager"=PAGER
    Name of pager application to pipe output into if run with option --pager. Default: "less".

"pager-flags"=FLAGS
    Pass FLAGS to PAGER. Default: "--quit-if-one-screen".

Color Configuration
    For the syntax of the color specifications consult the manual page of Term::ANSIColor(pm).

    "file-header-color"
        Color of the filename header.

    "fill-state-color"
        Color of the messages that report ``Underfull hbox'' or ``Overfull hbox''.

    "first-vbox-color"
        Color of the first vbox on a page.

    "font-spec-color"
        Color of font specifications.

    "horizontal-break-candidate-color"
        Color of lines with horizontal-breakpoint candidates "@".

    "horizontal-breakpoint-color"
        Color of lines with horizontal breakpoints "@@".

    "id-color"
        Color of matching IDs when printed inline.

    "id-heading-color"
        Color of matching IDs when printed in heading form.

    "line-break-pass-color"
        Color of the lines showing which pass (e.g., @firstpass) of the line-breaking algorithm is active.

    "line-number-color"
        Color of TeX-source-file line numbers.

    "log-line-number-color"
        Color of log-file line numbers.

    "math-color"
        Color used for math expressions including their font specs.

    "page-number-color"
        Color of page numbers of the final output.

    "tightness-color"
        Color of lines with Tight/Loose hbox reports.

    "vertical-breakpoint-color"
        Color of possible vertical breakpoints.

  Brief summary of colors and attributes

Foreground Color
    "black", "red", "green", "yellow", "blue", "magenta", "cyan", "white",

    Prefix with "bright_" for high-intensity or bold foreground.

Foreground Grey
    "grey0", ..., "grey23"

Background Color
    "on_black", "on_red", "on_green", "on_yellow", "on_blue", "on_magenta", "on_cyan", "on_white"

    Replace "on_" with "on_bright_" for high-intensity or bold background.

Background Grey
    "on_grey0", ..., "on_grey23"

Text Attribute
    "bold", "dark", "italic", "underline", "reverse"

  Some Common Encodings
The following list shows some encodings that are suitable for option --encoding.

Latin-1, Western European
    "iso-8859-1", "cp850", "cp860", "cp1252"

Latin-2, Central European
    "iso-8859-2", "cp852", "cp1250"

Latin-3, South European (Esperanto, Maltese)
    "iso-8859-3"

Latin-4, North European (Baltics)
    "iso-8859-4"

Cyrillics
    "iso-8859-5", "cp855", "cp866" (Ukrainian), "cp1251"

Arabic
    "iso-8859-6", "cp864", "cp1006" (Farsi), "cp1256"

Greek
    "iso-8859-7", "cp737", "cp1253"

Hebrew
    "iso-8859-8", "cp862", "cp1255"

Turkish
    "iso-8859-9", "cp857", "cp1254"

Nordic
    "iso-8859-10", "cp865", "cp861" (Icelandic)

Thai
    "iso-8859-11", "cp874"

Baltic
    "iso-8859-13", "cp775", "cp1257"

Celtic
    "iso-8859-14"

Latin-9 (sometimes called Latin0)
    "iso-8859-15"

Latin-10
    "iso-8859-16"

EXIT STATUS
The exit status is 0 if at least one ID matched REGEXP, 1 if no ID matched REGEXP, and 2 if an error occurred.

CAVEATS
The end tag "</typog-inspect>" sometimes gets placed too early in the output and the trace seems truncated. However, LaTeX reliably logs the requested the trace information, but the write operations for trace data and the code which is used to print the end tag are not synchronized.

SEE ALSO
grep(1), printf(3), Encode::Supported(pm), Term::ANSIColor(pm)