2015-01-25 18:36:02 +01:00
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.TH GRCAT 1
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.SH NAME
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grcat \- read from standard input, colourise it and write to standard
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output
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.SH SYNOPSIS
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.B grcat
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.I "configuration"
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.SH DESCRIPTION
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.I "configuration"
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is a name of a configuration file. Directories
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~/.grc/, /usr/local/share/grc/, /usr/share/grc/
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are searched for the file (in this order).
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If the file is not found, it is assumed to be an absolute path of a
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configuration file located elsewhere.
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Configuration file consists of entries, one per regexp, entries are
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separated with lines with first character non-alphanumeric (except #).
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Lines beginning with # or empty lines are ignored.
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Each entry consists of several lines.
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Each line has form:
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.I keyword=value
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where keyword is one of:
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.BR regexp ",
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.BR colours ",
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.BR command ",
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2016-09-28 11:48:08 +02:00
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.BR concat ",
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2015-01-25 18:36:02 +01:00
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.BR skip ",
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.BR count ".
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Only
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.BR regexp
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is mandatory, but it does not have much sense by itself
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unless you specify at least a
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.BR colour
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or
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.BR command
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keyword as well.
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.I regexp
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is the regular expression to match
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.I colours
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is the list of colours, separated by commas (you can specify only
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one colour), each colour per one regexp group specified in regexp.
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.I command
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is command to be executed when regexp matches. Its output will
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be mixed with normal stdout, use redirectors ( >/dev/null) if you want
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to supress it.
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2015-02-27 15:20:32 +01:00
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.I replace
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means the regular expression match will be replaced by the value, all the
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preceeding regular expressions will be evaluated against the original text, all
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the following regular expressions will be evaluated against the replaced text
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2015-01-25 18:36:02 +01:00
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.I skip
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can be either
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.BR yes ",
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or
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.BR no ",
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if yes, the matched line will be skipped and not displayed in output.
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Default is no.
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.I count
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is one of words:
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.BR once ",
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.BR more ",
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or
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.BR stop ".
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.BR once
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means that if the regexp is matched, its first occurrence is coloured
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and the program will continue with other regexp's.
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.BR more
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means that if there are multiple matches of the regexp in one line,
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all of them will be coloured.
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.BR stop
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means that the regexp will be coloured and program will move to the
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next line (i.e. ignoring other regexp's)
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Regular expressions are evaluated from top to bottom, this allows nested
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and overlapped
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expressions. (e.g. you colour everything inside parentheses with one
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colour, and if a following expression matches the text inside parentheses,
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it will be also coloured)
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.SH OPTIONS
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None so far.
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.SH SEE ALSO
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.BR grc "(1)
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.SH AUTHOR
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Written by Radovan Garab\('ik <garabik @ kassiopeia.juls.savba.sk>
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