15359000        1603.2814569096Couldn't process record: invalid character encountered while parsing JSON string, at character
 offset 99 ["\x{1b}an\tar, janez...."] at /openils/lib/perl5//OpenSRF/Utils/JSON.pm line 120.

 >>> {"__c":"bre","__p":[null,null,null,null,null,"t","now",1,"f","now",1,null,"487852","IMPORT-1218060013.67697","<record   
 xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"    xsi:schemaLocation=\"http://www.loc.gov/MARC21/slim http://www.lo
c.gov/ standards/marcxml/schema/MARC21slim.xsd\"    xmlns=\"http://www.loc.gov/MARC21/slim\"><leader>01100nab a22003011a 4500
</leader><controlfield tag=\"005\">20000629113242.0</controlfield><controlfield tag=\"008\">000629c2000    ne  u p   b   0   
a0eng d</controlfield><datafield tag=\"035\" ind1=\" \" ind2=\" \"><subfield code=\"a\">(Sirsi) 16-0014071</subfield></datafi
eld><datafield tag=\"040\" ind1=\" \" ind2=\" \"><subfield code=\"d\">UtOrBLW</subfield></datafield><datafield tag=\"050\" in
d1=\"0\" ind2=\"0\"><subfield code=\"a\">TD'172'W36</subfield></datafield><datafield tag=\"100\" ind1=\"1\" ind2=\" \"><subfi
eld code=\"a\">&#x161;&#x11B;an&#x109;ar, Janez.</subfield></datafield><datafield tag=\"245\" ind1=\"1\" ind2=\"0\"><subfield
 code=\"a\">Comparison of various digestion and extraction procedures in analysis of heavy metals in sediments /</subfield><s
ubfield code=\"c\">by Janez &#x161;&#x11B;an&#x109;ar, Radmila Mila&#x109;i&#x109;, and Milena Horvat</subfield></datafield><
datafield tag=\"260\" ind1=\" \" ind2=\" \"><subfield code=\"a\">Dodrecht :</subfield><subfield code=\"b\">Reidel, </subfield
><subfield code=\"c\">2000</subfield></datafield><datafield tag=\"300\" ind1=\" \" ind2=\" \"><subfield code=\"a\">p. 87-99 :
</subfield><subfield code=\"b\">ill., map.</subfield></datafield><datafield tag=\"504\" ind1=\" \" ind2=\" \"><subfield code=
\"a\">Bibliogr.</subfield></datafield><datafield tag=\"700\" ind1=\"1\" ind2=\" \"><subfield code=\"a\">Mila&#x109;i&#x109;, 
Radmila.</subfield></datafield><datafield tag=\"700\" ind1=\"1\" ind2=\" \"><subfield code=\"a\">Horvat, Milena.</subfield></
datafield><datafield tag=\"730\" ind1=\"0\" ind2=\" \"><subfield code=\"a\">Water, air and soil pollution (0049-6979)</subfie
ld></datafield><datafield tag=\"773\" ind1=\"0\" ind2=\" \"><subfield code=\"t\">Water, air and soil pollution, v. 118, no. 1
-2 (February 2000), p. 87-99. </subfield><subfield code=\"w\">See also: 01-0011197.</subfield></datafield><datafield tag=\"34
9\" ind1=\" \" ind2=\" \"><subfield code=\"a\">article (journal)</subfield></datafield><datafield tag=\"349\" ind1=\" \" ind2
=\" \"><subfield code=\"a\">abstracts required (MEDB)</subfield></datafield><datafield tag=\"349\" ind1=\" \" ind2=\" \"><sub
field code=\"a\">Mining Environmental Neutral Drainage Database</subfield></datafield><datafield tag=\"659\" ind1=\" \" ind2=
\" \"><subfield code=\"a\">e0006</subfield></datafield><datafield tag=\"659\" ind1=\" \" ind2=\" \"><subfield code=\"a\">ll</
subfield></datafield><datafield tag=\"901\" ind1=\" \" ind2=\" \"><subfield code=\"a\">487852</subfield><subfield code=\"b\">
System</subfield><subfield code=\"c\">487852</subfield></datafield></record>",null,null,"System","487852"]}

Unicode

For legacy reasons most letters which can carry carons exist as precomposed characters in Unicode, but a caron can also be added to any letter (often with rather ugly results due to deficiencies in font rendering) by using the combining character U+030C COMBINING CARON, for example: b̌ q̌ J̌.

(http://en.wikipedia.org/wiki/Caron)