Sgrep - Revision history

Christoph: Sgrep (command) moved to Sgrep

2007-04-26T01:55:20Z

Sgrep (command) moved to Sgrep

Christoph: /* Advanced example */

2006-09-06T22:16:44Z

‎Advanced example

Christoph: /* Advanced example */

2006-09-06T22:15:40Z

‎Advanced example

Christoph: /* Usage */

2006-09-06T22:10:23Z

‎Usage

Christoph at 21:29, 6 September 2006

2006-09-06T21:29:01Z

Christoph at 21:22, 6 September 2006

2006-09-06T21:22:30Z

New page

{{lowercase|title=sgrep}}
'''sgrep''' (structured grep) is a [[:Category:Linux Command Line Tools|command line tool]] for searching and indexing text, [[SGML]], [[XML]], and [[HTML]] files and filtering text streams using structural criteria. It was written by Jani Jaakkola and Pekka Kilpeläinen. It is included in the [[SuSE]] [[Linux]] package.

The data model of sgrep is based on regions, which are nonempty substrings of text. Regions are typically occurrences of constant strings, SGML-tags, or meaningful text elements, which are recognizable through some delimiting strings or the builtin SGML, XML and HTML parser. Regions can be arbitrarily long, arbitrarily overlapping, and arbitrarily nested.

Sgrep is a convenient tool for making queries to almost any kind of text files with some well kown structure. These include programs, mail folders, news folders, HTML, SGML, etc. With relatively simple queries you can display mail messages by their subject or sender, extract titles or links or any regions from HTML files, function prototypes from C or make complex queries to SGML files based on the [[DTD]] of the file.

== Usage ==
=== Simple example ===
% sgrep -o "%f:%r\n" 'word("foo") or word("bar")' foobar

== External links ==
* [http://www.cs.helsinki.fi/u/jjaakkol/sgrep.html Official website]

[[Category:Linux Command Line Tools]]

@@ Line 11: / Line 11: @@
 === Advanced example ===
-This example will show how to search for the famous phrase "To be or not to be: that is the question" in Jon Bosak's ''[http://xml.coverpages.org/bosakXMLExamples980131.html Revised XML Document Collections]''.
+This example will show how to search for the famous phrase "To be or not to be: that is the question" in Jon Bosak's ''[http://xml.coverpages.org/bosakXMLExamples980131.html Revised XML Document Collections]''. (note: [http://www.cs.helsinki.fi/u/jjaakkol/sgrep/README.txt Original example].)
 * Step 1: Create a file called '<code>query</code>' containing the following:

@@ Line 36: / Line 36: @@
 </pre>
-* Step 2: Create a file called '<code>Bosak_fillist.txt</code>' containing a list of all Shakespeare XML files.
+* Step 2: Create a file called '<code>Bosak_filelist.txt</code>' containing a list of all Shakespeare XML files.
 * Step 3: Create an index of the input XML texts (greatly improves performance; checked with [[Time (command)|time]] command):
-  % sgrep -I -c index -v -F Bosak_fillist.txt
+  % sgrep -I -c index -v -F Bosak_filelist.txt
 * Step 4: Issue the following command
-  % sgrep -x index -o "%f:\n %r\n" -f query -e HAMLET_SAYS -F Bosak_fillist.txt
+  % sgrep -x index -o "%f:\n %r\n" -f query -e HAMLET_SAYS -F Bosak_filelist.txt
 == See also ==

← Older revision	Revision as of 01:55, 26 April 2007
(No difference)

@@ Line 9: / Line 9: @@
 === Simple example ===
   % sgrep -o "%f:%r\n" 'word("foo") or word("bar")' foobar
 == See also ==

@@ Line 4: / Line 4: @@
 The data model of sgrep is based on regions, which are nonempty substrings of text. Regions are typically occurrences of constant strings, SGML-tags, or meaningful text elements, which are recognizable through some delimiting strings or the builtin SGML, XML and HTML parser. Regions can be arbitrarily long, arbitrarily overlapping, and arbitrarily nested.
-Sgrep is a convenient tool for making queries to almost any kind of text files with some well kown structure. These include programs, mail folders, news folders, HTML, SGML, etc. With relatively simple queries you can display mail messages by their subject or sender, extract titles or links or any regions from HTML files, function prototypes from C or make complex queries to SGML files based on the [[DTD]] of the file.
+Like [[Grep (command)|grep]], sgrep can be used for any kind of text files. However it is most useful for text files containing some kind of structured text. Sgrep is a convenient tool for making queries to almost any kind of text files with some well kown structure. These include programs, mail folders, news folders, HTML, SGML, TeX, etc. With relatively simple queries you can display mail messages by their subject or sender, extract titles or links or any regions from HTML files, function prototypes from C or make complex queries to SGML files based on the [[DTD]] of the file.
 == Usage ==
 === Simple example ===
   % sgrep -o "%f:%r\n" 'word("foo") or word("bar")' foobar
 == External links ==