added start out-of-domain

gallery/example1.typ

@@ -88,3 +88,58 @@
     ))
   }
 )
+
+#pagebreak()
+
+#functastic.sign-table(
+  ($0$, $1/e$, $e^((1-sqrt(5))/2)$, $e^(-1/3)$, $e$, $e^phi$, $e^2$, $+oo$),
+  espcl: 2,
+  {
+    import functastic: *
+    sign-line(
+      $f'(x)$, start-ood: true, (
+        "d", $+$, "t", $+$, $0$, $-$, "t", $-$, "t", $-$, $0$, $+$, "t", $+$
+      )
+    )
+
+    sign-line(
+      $f''(x)$, start-ood: true, (
+        "d", $-$, "t", $-$, "t", $-$, $0$, $+$, "t", $+$, "t", $+$, $0$, $-$
+      )
+    )
+
+    func-line(
+      $f(x)$, mult: 2, start-ood: true, (
+        disc(right: (asymp($y = 0$), "bottom")),
+        none,
+        val([max], "top"),
+        none,
+        none,
+        val([min], "bottom"),
+        none,
+        val(asymp($x = 0$), "top"),
+        inter($0$, 0, 1, i: 1),
+        inter($0$, 1, 2, i: 4)
+      )
+    )
+
+    convex-line(
+      [concavité], mult: 1.5, (
+        "AV",
+        false,
+        none,
+        false,
+        none,
+        false,
+        "PI",
+        true,
+        none,
+        true,
+        none,
+        true,
+        "PI",
+        false
+      )
+    )
+  }
+)

src/renderer.typ

@@ -57,6 +57,21 @@
   let yt = ht.at(1)
   let yb = hb.at(1)
 
+  if line.start-ood and line.values.len() != 0 {
+    let first = line.values.first()
+    let p0 = "header-" + str(line-i) + ".north-east"
+    let p1 = func.get-anchor(
+      ctx,
+      line-i,
+      0,
+      "bottom",
+      if first == "d" {"left"} else {"center"},
+      dx: 0.05,
+      dy: 0
+    )
+    draw.rect(p0, p1, fill: stripes, stroke: none)
+  }
+
   for (i, value) in line.values.enumerate() {
     // Value
     if calc.rem(i, 2) == 1 {
@@ -137,9 +152,24 @@
 
 #let render-func(styles, ctx, line, line-i) = {
   let header = "header-" + str(line-i)
-  let ood = false
+  let ood = line.start-ood
   let value-i = -1
 
+  if line.start-ood and line.values.len() != 0 {
+    let first = line.values.first()
+    let p0 = "header-" + str(line-i) + ".north-east"
+    let p1 = func.get-anchor(
+      ctx,
+      line-i,
+      0,
+      "bottom",
+      if (first.eod) {"center"} else {"left"},
+      dx: 0.05,
+      dy: 0
+    )
+    draw.rect(p0, p1, fill: stripes, stroke: none)
+  }
+
   for (i, value) in line.values.enumerate() {
     if value == none {
       continue

src/table.typ

@@ -15,20 +15,23 @@
 
 #let sign-line(
   name,
-  values
+  values,
+  start-ood: false
 ) = {
   return ((
     type: "sign",
     name: name,
     inset: 1em,
     values: values,
+    start-ood: start-ood
   ),)
 }
 
 #let func-line(
   name,
   values,
-  mult: 1
+  mult: 1,
+  start-ood: false
 ) = {
   return ((
     type: "func",
@@ -40,13 +43,15 @@
       right: 1em
     ),
     values: values,
+    start-ood: start-ood
   ),)
 }
 
 #let convex-line(
   name,
   values,
-  mult: 1
+  mult: 1,
+  start-ood: false
 ) = {
   return ((
     type: "convex",
@@ -58,6 +63,7 @@
       right: 1em
     ),
     values: values,
+    start-ood: start-ood
   ),)
 }