Fix Sphinx helper script that emits command lines.

When an example contained multiple commands separated by semicolons,
we'd execute them separately but still include all of them into each of
the command lines emitted into the docs.

(Couple of doc outputs show slightly changed content, including updates
into this commit.)

doc/programming/examples/_parse-backtrack.spicy.output

@@ -1,6 +1,6 @@
 # Automatically generated; do not edit. -- <HASH> printf '\001\002\003\004' | spicy-driver %INPUT; printf '\003\004' | spicy-driver %INPUT/printf '\001\002\003\004' | spicy-driver %INPUT; printf '\003\004' | spicy-driver %INPUT/False
-# printf '\001\002\003\004' | spicy-driver backtrack.spicy; printf '\003\004' | spicy-driver backtrack.spicy
+# printf '\001\002\003\004' | spicy-driver backtrack.spicy
 [$foo=[$a=1, $b=2], $bar=[$a=3, $b=4]]
 
-# printf '\001\002\003\004' | spicy-driver backtrack.spicy; printf '\003\004' | spicy-driver backtrack.spicy
+#  printf '\003\004' | spicy-driver backtrack.spicy
 [$foo=[$a=3, $b=(not set)], $bar=[$a=3, $b=4]]

doc/programming/examples/_parse-if.spicy.output

@@ -1,6 +1,6 @@
 # Automatically generated; do not edit. -- <HASH> printf '\01\02\03\04' | spicy-driver %INPUT; printf '\02\02\03\04' | spicy-driver %INPUT/printf '\01\02\03\04' | spicy-driver %INPUT; printf '\02\02\03\04' | spicy-driver %INPUT/False
-# printf '\01\02\03\04' | spicy-driver foo.spicy; printf '\02\02\03\04' | spicy-driver foo.spicy
+# printf '\01\02\03\04' | spicy-driver foo.spicy
 [$a=1, $b=2, $c=(not set), $d=3]
 
-# printf '\01\02\03\04' | spicy-driver foo.spicy; printf '\02\02\03\04' | spicy-driver foo.spicy
+# printf '\02\02\03\04' | spicy-driver foo.spicy
 [$a=2, $b=(not set), $c=2, $d=3]

doc/programming/examples/_parse-switch-lhead-2.spicy.output

@@ -1,6 +1,6 @@
 # Automatically generated; do not edit. -- <HASH> printf 'A ' | spicy-driver %INPUT; printf '\377\377' | spicy-driver %INPUT/printf 'A ' | spicy-driver %INPUT; printf '\377\377' | spicy-driver %INPUT/False
-# printf 'A ' | spicy-driver foo.spicy; printf '\377\377' | spicy-driver foo.spicy
+# printf 'A ' | spicy-driver foo.spicy
 [$a=[$a=b"A"], $b=(not set)]
 
-# printf 'A ' | spicy-driver foo.spicy; printf '\377\377' | spicy-driver foo.spicy
+# printf '\377\377' | spicy-driver foo.spicy
 [$a=(not set), $b=[$b=65535]]

doc/programming/examples/_parse-switch.spicy.output

@@ -1,6 +1,6 @@
 # Automatically generated; do not edit. -- <HASH> printf 'A\01' | spicy-driver %INPUT; printf 'B\01\02' | spicy-driver %INPUT/printf 'A\01' | spicy-driver %INPUT; printf 'B\01\02' | spicy-driver %INPUT/False
-# printf 'A\01' | spicy-driver foo.spicy; printf 'B\01\02' | spicy-driver foo.spicy
+# printf 'A\01' | spicy-driver foo.spicy
 [$x=b"A", $a8=1, $a16=(not set), $a32=(not set)]
 
-# printf 'A\01' | spicy-driver foo.spicy; printf 'B\01\02' | spicy-driver foo.spicy
+# printf 'B\01\02' | spicy-driver foo.spicy
 [$x=b"B", $a8=(not set), $a16=258, $a32=(not set)]

doc/programming/examples/_parse-unit-params.spicy.output

@@ -1,4 +1,4 @@
 # Automatically generated; do not edit. -- <HASH> printf '\01\02' | spicy-driver %INPUT/printf '\01\02' | spicy-driver %INPUT/False
 # printf '\01\02' | spicy-driver foo.spicy
-"Spicy": 1
+Spicy: 1
 [$y=[$x=1]]

doc/programming/examples/_unit-params.spicy.output

@@ -1,3 +1,3 @@
 # Automatically generated; do not edit. -- <HASH> printf '\05' | spicy-driver %INPUT/printf '\05' | spicy-driver %INPUT/False
 # printf '\05' | spicy-driver foo.spicy
-"My multiplied integer": 25
+My multiplied integer: 25

doc/scripts/spicy.py

@@ -384,6 +384,10 @@ def update(self, source, destination, cmd):
         all_good = True
         first = True
 
+        show_as = []
+        if self.show_as:
+            show_as = self.show_as.split(";")
+
         for one_cmd in cmd.split(";"):
             one_cmd = one_cmd.strip()
 
@@ -418,12 +422,14 @@ def update(self, source, destination, cmd):
                     out = open(destination, "ab")
                     out.write(b"\n")
 
-                if self.show_as:
-                    one_cmd = "# %s\n" % self.show_as
+                if show_as:
+                    one_cmd = "# %s\n" % show_as[0].strip()
                     one_cmd = one_cmd.replace("%INPUT", self.show_with)
                     output = output.replace(
                         source.encode(), self.show_with.encode())
                     out.write(one_cmd.encode())
+                    show_as = show_as[1:]
+
                 out.write(output)
                 out.close()
                 first = False