fix(#3147): remove sigma

eo-maven-plugin/src/main/java/org/eolang/maven/TranspileMojo.java

@@ -94,7 +94,6 @@ public final class TranspileMojo extends SafeMojo {
             "/org/eolang/maven/pre/tests.xsl",
             "/org/eolang/maven/pre/rename-tests-inners.xsl",
             "/org/eolang/maven/pre/attrs.xsl",
-            "/org/eolang/maven/pre/varargs.xsl",
             "/org/eolang/maven/pre/data.xsl"
         ).back(),
         new TrDefault<>(

eo-maven-plugin/src/main/resources/org/eolang/maven/phi/to-phi.xsl

@@ -42,9 +42,6 @@ SOFTWARE.
   <xsl:variable name="rho">
     <select>ρ</select>
   </xsl:variable>
-  <xsl:variable name="sigma">
-    <select>σ</select>
-  </xsl:variable>
   <xsl:variable name="program">
     <select>Φ</select>
   </xsl:variable>
@@ -105,14 +102,6 @@ SOFTWARE.
         <xsl:text>.</xsl:text>
         <xsl:value-of select="$rho"/>
       </xsl:when>
-      <xsl:when test="$n='&amp;'">
-        <xsl:value-of select="eo:add-xi(not($is-name))"/>
-        <xsl:value-of select="$sigma"/>
-      </xsl:when>
-      <xsl:when test="$n='.&amp;'">
-        <xsl:text>.</xsl:text>
-        <xsl:value-of select="$sigma"/>
-      </xsl:when>
       <xsl:when test="$n='$'">
         <xsl:value-of select="$xi"/>
       </xsl:when>
@@ -245,14 +234,14 @@ SOFTWARE.
   <xsl:template match="*" mode="path">
     <xsl:param name="find"/>
     <xsl:variable name="parent" select="parent::*"/>
-    <xsl:variable name="sigma-dot">
-      <xsl:value-of select="eo:specials('&amp;', true())"/>
+    <xsl:variable name="rho-dot">
+      <xsl:value-of select="eo:specials('^', true())"/>
       <xsl:text>.</xsl:text>
     </xsl:variable>
     <xsl:choose>
       <xsl:when test="$parent[@abstract]">
         <xsl:if test="not($parent/o[@name=$find])">
-          <xsl:value-of select="$sigma-dot"/>
+          <xsl:value-of select="$rho-dot"/>
           <xsl:apply-templates select="$parent" mode="path">
             <xsl:with-param name="find" select="$find"/>
           </xsl:apply-templates>

eo-maven-plugin/src/main/resources/org/eolang/maven/pre/attrs.xsl

@@ -30,14 +30,7 @@ SOFTWARE.
       <xsl:variable name="t">
         <xsl:choose>
           <xsl:when test="@base">
-            <xsl:choose>
-              <xsl:when test="@cut">
-                <xsl:text>formed</xsl:text>
-              </xsl:when>
-              <xsl:otherwise>
-                <xsl:text>bound</xsl:text>
-              </xsl:otherwise>
-            </xsl:choose>
+            <xsl:text>bound</xsl:text>
           </xsl:when>
           <xsl:otherwise>
             <xsl:text>void</xsl:text>

eo-maven-plugin/src/main/resources/org/eolang/maven/pre/to-java.xsl

@@ -26,9 +26,16 @@ SOFTWARE.
   <xsl:import href="/org/eolang/parser/_datas.xsl"/>
   <xsl:param name="disclaimer"/>
   <xsl:output encoding="UTF-8" method="xml"/>
+  <!-- VARIABLES -->
   <xsl:variable name="TAB">
     <xsl:text>  </xsl:text>
   </xsl:variable>
+  <xsl:variable name="RHO">
+    <xsl:text>ρ</xsl:text>
+  </xsl:variable>
+  <xsl:variable name="PHI">
+    <xsl:text>φ</xsl:text>
+  </xsl:variable>
   <!-- FUNCTIONS -->
   <!-- EOL -->
   <xsl:function name="eo:eol">
@@ -58,7 +65,7 @@ SOFTWARE.
   <!-- Get clean escaped object name  -->
   <xsl:function name="eo:clean" as="xs:string">
     <xsl:param name="n" as="xs:string"/>
-    <xsl:value-of select="concat('EO', replace(replace(replace(replace(replace($n, '_', '__'), '-', '_'), '@', 'φ'), 'α', '_'), '\$', '\$EO'))"/>
+    <xsl:value-of select="concat('EO', replace(replace(replace(replace(replace($n, '_', '__'), '-', '_'), '@', $PHI), 'α', '_'), '\$', '\$EO'))"/>
   </xsl:function>
   <!-- Get object name with suffix -->
   <xsl:function name="eo:suffix" as="xs:string">
@@ -104,10 +111,10 @@ SOFTWARE.
     <xsl:param name="n" as="xs:string"/>
     <xsl:choose>
       <xsl:when test="$n='@'">
-        <xsl:text>φ</xsl:text>
+        <xsl:value-of select="$PHI"/>
       </xsl:when>
       <xsl:when test="$n='^'">
-        <xsl:text>ρ</xsl:text>
+        <xsl:value-of select="$RHO"/>
       </xsl:when>
       <xsl:otherwise>
         <xsl:value-of select="concat('', $n)"/>
@@ -191,19 +198,10 @@ SOFTWARE.
         <xsl:value-of select="eo:class-name(@name, eo:suffix(@line, @pos))"/>
         <xsl:text>() {</xsl:text>
       </xsl:when>
-      <xsl:when test="@ancestors">
-        <xsl:text>public </xsl:text>
-        <xsl:value-of select="eo:class-name(@name, eo:suffix(@line, @pos))"/>
-        <xsl:text>(final Phi sigma) {</xsl:text>
-        <xsl:value-of select="eo:eol(2)"/>
-        <xsl:text>super(sigma);</xsl:text>
-      </xsl:when>
       <xsl:otherwise>
         <xsl:text>public </xsl:text>
         <xsl:value-of select="eo:class-name(@name, eo:suffix(@line, @pos))"/>
-        <xsl:text>(final Phi sigma) {</xsl:text>
-        <xsl:value-of select="eo:eol(2)"/>
-        <xsl:text>super(sigma);</xsl:text>
+        <xsl:text>() {</xsl:text>
       </xsl:otherwise>
     </xsl:choose>
     <xsl:apply-templates select="attr">
@@ -235,22 +233,6 @@ SOFTWARE.
     <xsl:value-of select="$name"/>
     <xsl:text>")</xsl:text>
   </xsl:template>
-  <!-- Formed attribute -->
-  <xsl:template match="formed">
-    <xsl:text>new AtFormed(() -&gt; {</xsl:text>
-    <xsl:value-of select="eo:eol(0)"/>
-    <xsl:apply-templates select="*">
-      <xsl:with-param name="name" select="'ret'"/>
-      <xsl:with-param name="indent">
-        <xsl:value-of select="eo:tabs(3)"/>
-      </xsl:with-param>
-      <xsl:with-param name="rho" select="'this'"/>
-    </xsl:apply-templates>
-    <xsl:value-of select="eo:tabs(3)"/>
-    <xsl:text>return ret;</xsl:text>
-    <xsl:value-of select="eo:eol(2)"/>
-    <xsl:text>})</xsl:text>
-  </xsl:template>
   <!-- Bound attribute -->
   <xsl:template match="bound">
     <xsl:text>new AtOnce(</xsl:text>
@@ -261,7 +243,6 @@ SOFTWARE.
       <xsl:with-param name="indent">
         <xsl:value-of select="eo:tabs(3)"/>
       </xsl:with-param>
-      <xsl:with-param name="rho" select="'rho'"/>
     </xsl:apply-templates>
     <xsl:value-of select="eo:tabs(3)"/>
     <xsl:text>return ret;</xsl:text>
@@ -286,7 +267,6 @@ SOFTWARE.
   <xsl:template match="o[@base and not(starts-with(@base, '.'))]">
     <xsl:param name="indent"/>
     <xsl:param name="name"/>
-    <xsl:param name="rho"/>
     <xsl:variable name="current" select="."/>
     <xsl:variable name="source" select="//*[generate-id()!=generate-id($current) and @name=$current/@base and @line=$current/@ref]"/>
     <!-- Terminate -->
@@ -320,24 +300,21 @@ SOFTWARE.
         <xsl:text>.copy()</xsl:text>
       </xsl:when>
       <xsl:when test="@base='$'">
-        <xsl:value-of select="$rho"/>
+        <xsl:text>rho</xsl:text>
       </xsl:when>
       <xsl:when test="@base='Q'">
         <xsl:text>Phi.Φ</xsl:text>
       </xsl:when>
       <xsl:when test="@base='^'">
-        <xsl:text>new PhMethod(rho, "ρ")</xsl:text>
-      </xsl:when>
-      <xsl:when test="@base='&amp;'">
-        <xsl:text>new PhMethod(rho, "σ")</xsl:text>
+        <xsl:text>new PhMethod(rho, "</xsl:text>
+        <xsl:value-of select="$RHO"/>
+        <xsl:text>")</xsl:text>
       </xsl:when>
       <!-- TBD -->
       <xsl:when test="$source/@ancestors">
         <xsl:text>new </xsl:text>
         <xsl:value-of select="eo:class-name($source/@name, eo:suffix(@line, @pos))"/>
-        <xsl:text>(</xsl:text>
-        <xsl:value-of select="$rho"/>
-        <xsl:text>)</xsl:text>
+        <xsl:text>()</xsl:text>
       </xsl:when>
       <xsl:when test="$source and name($source)='class'">
         <xsl:value-of select="eo:fetch(concat($source/@package, '.', $source/@name))"/>
@@ -348,7 +325,9 @@ SOFTWARE.
         </xsl:for-each>
         <xsl:text>rho</xsl:text>
         <xsl:for-each select="1 to $source/@level">
-          <xsl:text>, "σ")</xsl:text>
+          <xsl:text>, "</xsl:text>
+          <xsl:value-of select="$RHO"/>
+          <xsl:text>")</xsl:text>
         </xsl:for-each>
         <xsl:text>, "</xsl:text>
         <xsl:value-of select="$source/@name"/>
@@ -368,7 +347,6 @@ SOFTWARE.
     <xsl:apply-templates select="." mode="application">
       <xsl:with-param name="name" select="$name"/>
       <xsl:with-param name="indent" select="$indent"/>
-      <xsl:with-param name="rho" select="$rho"/>
     </xsl:apply-templates>
     <xsl:apply-templates select="." mode="located">
       <xsl:with-param name="name" select="$name"/>
@@ -379,7 +357,6 @@ SOFTWARE.
   <xsl:template match="o[starts-with(@base, '.') and *]">
     <xsl:param name="indent"/>
     <xsl:param name="name"/>
-    <xsl:param name="rho"/>
     <xsl:apply-templates select="*[1]">
       <xsl:with-param name="name">
         <xsl:value-of select="$name"/>
@@ -388,7 +365,6 @@ SOFTWARE.
       <xsl:with-param name="indent">
         <xsl:value-of select="$indent"/>
       </xsl:with-param>
-      <xsl:with-param name="rho" select="$rho"/>
     </xsl:apply-templates>
     <xsl:value-of select="$indent"/>
     <xsl:text>Phi </xsl:text>
@@ -399,10 +375,7 @@ SOFTWARE.
     <xsl:variable name="method" select="substring-after(@base, '.')"/>
     <xsl:choose>
       <xsl:when test="$method='^'">
-        <xsl:text>ρ</xsl:text>
-      </xsl:when>
-      <xsl:when test="$method='&amp;'">
-        <xsl:text>σ</xsl:text>
+        <xsl:value-of select="$RHO"/>
       </xsl:when>
       <xsl:otherwise>
         <xsl:value-of select="eo:attr-name($method)"/>
@@ -418,7 +391,6 @@ SOFTWARE.
       <xsl:with-param name="name" select="$name"/>
       <xsl:with-param name="indent" select="$indent"/>
       <xsl:with-param name="skip" select="1"/>
-      <xsl:with-param name="rho" select="$rho"/>
     </xsl:apply-templates>
   </xsl:template>
   <!-- Location of object -->
@@ -448,7 +420,6 @@ SOFTWARE.
     <xsl:param name="indent"/>
     <xsl:param name="skip" select="0"/>
     <xsl:param name="name" select="'o'"/>
-    <xsl:param name="rho"/>
     <xsl:for-each select="./*[name()!='value' and name()!='tuple' and position() &gt; $skip][not(@level)]">
       <xsl:if test="position() = 1">
         <xsl:value-of select="$indent"/>
@@ -470,7 +441,6 @@ SOFTWARE.
           <xsl:value-of select="$indent"/>
           <xsl:value-of select="eo:tabs(1)"/>
         </xsl:with-param>
-        <xsl:with-param name="rho" select="$rho"/>
       </xsl:apply-templates>
     </xsl:for-each>
     <xsl:for-each select="./*[name()!='value' and position() &gt; $skip][not(@level)]">

eo-maven-plugin/src/test/resources/org/eolang/maven/packs/pre/converts-to-java-with-arrays-and-scopes.yaml → eo-maven-plugin/src/test/resources/org/eolang/maven/packs/converts-to-java-with-arrays-and-scopes.yaml

@@ -69,7 +69,6 @@ xsls:
   - /org/eolang/maven/pre/tests.xsl
   - /org/eolang/maven/pre/rename-tests-inners.xsl
   - /org/eolang/maven/pre/attrs.xsl
-  - /org/eolang/maven/pre/varargs.xsl
   - /org/eolang/maven/pre/data.xsl
   - /org/eolang/maven/pre/to-java.xsl
 tests:

eo-maven-plugin/src/test/resources/org/eolang/maven/packs/pre/embedded-class.yaml → eo-maven-plugin/src/test/resources/org/eolang/maven/packs/embedded-class.yaml

@@ -36,7 +36,7 @@ xsls:
   - /org/eolang/maven/pre/to-java.xsl
 tests:
   - /program/errors[count(*)=0]
-  - //java[contains(text(), 'PhMethod(new PhMethod(rho, "σ"), "σ")')]
+  - //java[contains(text(), 'PhMethod(new PhMethod(rho, "ρ"), "ρ")')]
 eo: |
   # This is the default 64+ symbols comment in front of named abstract object.
   [x] > foo

eo-maven-plugin/src/test/resources/org/eolang/maven/packs/pre/synthetic-attributes-with-to-java.yaml → eo-maven-plugin/src/test/resources/org/eolang/maven/packs/synthetic-attributes-with-to-java.yaml

@@ -69,7 +69,6 @@ xsls:
   - /org/eolang/maven/pre/tests.xsl
   - /org/eolang/maven/pre/rename-tests-inners.xsl
   - /org/eolang/maven/pre/attrs.xsl
-  - /org/eolang/maven/pre/varargs.xsl
   - /org/eolang/maven/pre/data.xsl
   - /org/eolang/maven/pre/to-java.xsl
 tests:

eo-maven-plugin/src/test/resources/org/eolang/maven/packs/pre/dot-home.yaml → eo-maven-plugin/src/test/resources/org/eolang/maven/phi/yaml/auto-named.yaml

@@ -20,24 +20,24 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 ---
-xsls:
-  - /org/eolang/parser/add-default-package.xsl
-  - /org/eolang/maven/pre/classes.xsl
-  - /org/eolang/maven/pre/attrs.xsl
-  - /org/eolang/maven/pre/data.xsl
-  - /org/eolang/maven/pre/to-java.xsl
-tests:
-  - /program/errors[count(*)=0]
-  - //java/text()[not(contains(., '&'))]
-
 eo: |
   # This is the default 64+ symbols comment in front of named abstract object.
-  [] > foo
-    5 > five
-    a > @
-
-    # This is the default 64+ symbols comment in front of named abstract object.
-    [] > a
-      # This is the default 64+ symbols comment in front of named abstract object.
-      [] > @
-        &.&.five > @
+  [] > object
+    x > first
+      [] >>
+        01- > b
+phi: |-
+  {
+    ⟦
+      object ↦ ⟦
+        first ↦ Φ.org.eolang.x(
+          α0 ↦ ξ.auto-named-attr-at-4-6
+        ),
+        auto-named-attr-at-4-6 ↦ ⟦
+          b ↦ Φ.org.eolang.bytes(
+            Δ ⤍ 01-
+          )
+        ⟧
+      ⟧
+    ⟧
+  }

eo-maven-plugin/src/test/resources/org/eolang/maven/phi/yaml/fibonaci.yaml

@@ -50,7 +50,7 @@ phi: |-
               )
             ).if(
               α0 ↦ ξ.n,
-              α1 ↦ ξ.σ.fibonacci(
+              α1 ↦ ξ.ρ.fibonacci(
                 α0 ↦ ξ.n.minus(
                   α0 ↦ Φ.org.eolang.int(
                     α0 ↦ Φ.org.eolang.bytes(
@@ -59,7 +59,7 @@ phi: |-
                   )
                 )
               ).plus(
-                α0 ↦ ξ.σ.fibonacci(
+                α0 ↦ ξ.ρ.fibonacci(
                   α0 ↦ ξ.n.minus(
                     α0 ↦ Φ.org.eolang.int(
                       α0 ↦ Φ.org.eolang.bytes(