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Hypertrophy

string comparison question

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#1 ·  Posted (edited)

$var[$n][0] holds a string value equaling: "John walked up the mountain."

Does the expression:

If $var[$n][0] > "John walked"
check to see if "John walked" is contained in $var[$n][0] Edited by Hypertrophy

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$var[$n][0] holds a string value equaling: "John walked up the mountain."

Does the expression:

If $var[$n][0] > "John walked"
check to see if "John walked" is contained in $var[$n][0]

The answer to "is contained in" has been made by Yashied.

I'd like to point out that even if you can compare strings with ordering using >, >=, <=, <, lookup Operators in the help file.

> Tests if the first value is greater than the second. Strings are compared lexicographically even if the contents of the string happen to be numeric.

This implies that "2" > "11" is True. So ordering strings can be done and give useful results but you have to be well aware of the way it works to avoid surprises.

OTOH, "2" > 11 is False.

ConsoleWrite(("2" > "11") & @LF & ("2" > 11) & @LF)

This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.
Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe here
RegExp tutorial: enough to get started
PCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta.

SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.
SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.
An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.
SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)
A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!
SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt)

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Thank you both.

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