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Full Discussion: How to compare two strings
Top Forums Shell Programming and Scripting How to compare two strings Post 302227001 by otheus on Wednesday 20th of August 2008 11:13:16 AM
Old 08-20-2008
Quote:
Originally Posted by Niroj
SmilieThat is good but I used the way how Prashant tried.. so tht he can find wht is the prob in his string comp approach..
The problem is that he's comparing a string using the shell's NUMERICAL comparators (lt, ge, etc). He could use bash's STRING comparators. The weird thing is that they have to be escaped, so I avoid them.

Code:
$ test "0.1.2" \< "0.1.3" && echo smaller
smaller

Again, that only works in BASH (at least since version 2.05 // 2005).
 

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XmStringByteCompare(3X) 												   XmStringByteCompare(3X)

NAME
XmStringByteCompare - A compound string function that indicates the results of a byte-by-byte comparison SYNOPSIS
#include <Xm/Xm.h> Boolean XmStringByteCompare (s1, s2) XmString s1; XmString s2; DESCRIPTION
XmStringByteCompare returns a Boolean indicating the results of a byte-by-byte comparison of two compound strings. In general, if two compound strings are created with the same (char *) string using XmStringCreateLocalized in the same language environ- ment, the compound strings compare as equal. If two compound strings are created with the same (char *) string and the same font list ele- ment tag set other than XmFONTLIST_DEFAULT_TAG using XmStringCreate, the strings compare as equal. In some cases, once a compound string is put into a widget, that string is converted into an internal form to allow faster processing. Part of the conversion process strips out unnecessary or redundant information. If an application then does an XtGetValues to retrieve a compound string from a widget (specifically, Label and all of its subclasses), it is not guaranteed that the compound string returned is byte-for-byte the same as the string given to the widget originally. Specifies a compound string to be compared with s2 Specifies a com- pound string to be compared with s1 RETURN VALUE
Returns True if two compound strings are identical byte-by-byte. SEE ALSO
XmStringCreate(3X), XmStringCreateLocalized(3X) XmStringByteCompare(3X)
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