This is the command yaz-icu that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
yaz-icu - YAZ ICU utility
SYNOPSIS
yaz-icu [-c config] [-p opt] [-s] [-x] [infile]
DESCRIPTION
yaz-icu is utility which demonstrates the ICU chain module of yaz. (yaz/icu.h).
The utility can be used in two ways. It may read some text using an XML configuration for
configuring ICU and show text analysis. This mode is triggered by option -c which
specififies the configuration to be used. The input file is read from standard input or
from a file if infile is specified.
The utility may also show ICU information. This is triggered by option -p.
OPTIONS
-c config
Specifies the file containing ICU chain configuration which is XML based.
-p type
Specifies extra information to be printed about the ICU system. If type is c then ICU
converters are printed. If type is l available locales are printed. If type is t
available transliterators are printed.
-s
Specifies that output should include sort key as well. Note that sort key differs
between ICU versions.
-x
Specifies that output should be XML based rather than "text" based.
ICU CHAIN CONFIGURATION
The ICU chain configuration speicifies one or more rules to convert text data into tokens.
The configuration format is XML based.
The toplevel element must be named icu_chain. The icu_chain element has one required
attribute locale which specifies the ICU locale to be used in the conversion steps.
The icu_chain element must include elements where each element specifies a conversion
step. The conversion is performed in the order in which the conversion steps are
specified. Each conversion element takes one attribute: rule which serves as argument to
the conversion step.
The following conversion elements are available:
casemap
Converts case and rule specifies how:
l
Lowercase using ICU function u_strToLower.
u
Upper case using ICU function u_strToUpper.
t
To title using UCU function u_strToTitle.
f
Fold case using ICU function u_strFoldCase.
display
This is a meta step which specifies that a term/token is to be displayed. This term is
retrieved in an application using function icu_chain_token_display (yaz/icu.h).
transform
Specifies an ICU transform rule using a transliterator Identifier. The rule attribute
is the transliterator Identifier. See ICU Transforms[1] for more information.
transliterate
Specifies a rule-based transliterator. The rule attribute is the custom transformation
rule to be used. See ICU Transforms[1] for more information.
tokenize
Breaks / tokenizes a string into components using ICU functions ubrk_open,
ubrk_setText, .. . The rule is one of:
l
Line. ICU: UBRK_LINE.
s
Sentence. ICU: UBRK_SENTENCE.
w
Word. ICU: UBRK_WORD.
c
Character. ICU: UBRK_CHARACTER.
t
Title. ICU: UBRK_TITLE.
EXAMPLES
The following command analyzes text in file text using ICU chain configuration chain.xml:
cat text | yaz-icu -c chain.xml
The chain.xml might look as follows:
<icu_chain locale="en">
<transform rule="[:Control:] Any-Remove"/>
<tokenize rule="w"/>
<transform rule="[[:WhiteSpace:][:Punctuation:]] Remove"/>
<transliterate rule="xy > z"/>
<display/>
<casemap rule="l"/>
</icu_chain>
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