All comparisons are made on strings: <span class="tt wims_code_words">string1 rel string2</span>.
Comparisons can be joined using <span class="tt wims_code_words">and</span> and
<span class="tt wims_code_words">or</span>. Parentheses may
be used to build complex comparison logics.

:Valid relations
:Relation,Condition
:==
string1 == string2 <br> string1 == string2
with <span class="tt wims_code_words">if</span>: true if <span class="tt wims_code_words">string1</span> and <span class="tt wims_code_words">string2</span> are identical.<br> with <span class="tt wims_code_words">ifval</span>: true if the numerical evaluations of <span class="tt wims_code_words">string1</span> and of <span class="tt wims_code_words">string2</span> are equal.
:!=
string1 != string2 <br> string1 &lt;&gt; string2
with <span class="tt wims_code_words">if</span>: true if <span class="tt wims_code_words">string1</span> and <span class="tt wims_code_words">string2</span> are NOT identical.<br> with <span class="tt wims_code_words">ifval</span>: true if the numerical evaluations of <span class="tt wims_code_words">string1</span> and of <span class="tt wims_code_words">string2</span> are not equal.
:!=
:<
string1 < string2
true if (the numerical evaluation of) <span class="tt wims_code_words">string1</span> is < <span class="tt wims_code_words">string2</span>.
:<=
string1 <= string2
true if (the numerical evaluation of) <span class="tt wims_code_words">string1</span> is $m_le <span class="tt wims_code_words">string2</span>.
:>
string1 > string2
true if (the numerical evaluation of) <span class="tt wims_code_words">string1</span> is > <span class="tt wims_code_words">string2</span>.
:>=
string1 >= string2
true if (the numerical evaluation of) <span class="tt wims_code_words">string1</span> is $m_ge <span class="tt wims_code_words">string2</span>.
:isin
string1 isin string2
true if <span class="tt wims_code_words">string1</span> is a substring of <span class="tt wims_code_words">string2</span>.
:notin
string1 notin string2
true if <span class="tt wims_code_words">string1</span> is NOT a substring of <span class="tt wims_code_words">string2</span>.
:iswordof
string1 iswordof string2
true if <span class="tt wims_code_words">string1</span> is a word of <span class="tt wims_code_words">string2</span>.
:notwordof
string1 notwordof string2
true if <span class="tt wims_code_words">string1</span> is NOT a word of <span class="tt wims_code_words">string2</span>.
:isvarof
string1 isvarof string2
true if <span class="tt wims_code_words">string1</span> is a (mathematical) variable of the expression <span class="tt wims_code_words">string2</span>.
:notvarof
string1 notvarof string2
true if <span class="tt wims_code_words">string1</span> is NOT a (mathematical) variable of the expression <span class="tt wims_code_words">string2</span>.
:isvariableof
string1 isvariableof string2
true if <span class="tt wims_code_words">string1</span> is a (mathematical) variable of the expression <span class="tt wims_code_words">string2</span>.
:notvariableof
string1 notvariableof string2
true if <span class="tt wims_code_words">string1</span> is NOT a (mathematical) variable of the expression <span class="tt wims_code_words">string2</span>.
:isitemof
string1 isitemof string2
true if <span class="tt wims_code_words">string1</span> is an item of the list <span class="tt wims_code_words">string2</span>.
:notitemof
string1 notitemof string2
true if <span class="tt wims_code_words">string1</span> is NOT an item of the list <span class="tt wims_code_words">string2</span>.
:islineof
string1 islineof string2
true if <span class="tt wims_code_words">string1</span> is a line of the list <span class="tt wims_code_words">string2</span>.
:notlineof
string1 notlineof string2
true if <span class="tt wims_code_words">string1</span> is NOT a line of the list <span class="tt wims_code_words">string2</span>.
:issamecase
string1 issamecase string2
true if <span class="tt wims_code_words">string1</span> and <span class="tt wims_code_words">string2</span> are the same text by a comparison insensitive to multiple spaces but case-sensitive.
:notsamecase
string1 notsamecase string2
true if <span class="tt wims_code_words">string1</span> and <span class="tt wims_code_words">string2</span> are NOT the same text by a comparison nsensitive to multiple spaces but case-sensitive.
:issametext
string1 issametext string2
true if <span class="tt wims_code_words">string1</span> and <span class="tt wims_code_words">string2</span> are the same text by a comparison insensitive to cases, multiple spaces and accented letters.
:notsametext
string1 notsametext string2
true if <span class="tt wims_code_words">string1</span> and <span class="tt wims_code_words">string2</span> are NOT the same text by a comparison insensitive to cases, multiple spaces and accented letters.

