Add shared graph viewer to all chapters

4 files changed, 3 insertions, 7 deletions

diff --git a/chapter03/docs/03-grammar.md b/chapter03/docs/03-grammar.md
index 14a7d5fa..1d36b532 100644
--- a/chapter03/docs/03-grammar.md
+++ b/chapter03/docs/03-grammar.md
@@ -12,12 +12,8 @@ statement
     | declStatement
     | blockStatment
     | expressionStatement
-    | metaStatement
     ;
 
-metaStatement
-    : '#showGraph' ';'
-    ;
 
 expressionStatement
     : IDENTIFIER '=' expression ';'
diff --git a/chapter03/docs/03-graph1.gv b/chapter03/docs/03-graph1.gv
index 2bdca351..7008a44e 100644
--- a/chapter03/docs/03-graph1.gv
+++ b/chapter03/docs/03-graph1.gv
@@ -1,6 +1,6 @@
 digraph chapter03 {
 /*
-int a=1; int b=2; int c=0; { int b=3; c=a+b; #showGraph; } return c; #showGraph;
+int a=1; int b=2; int c=0; { int b=3; c=a+b;  } return c;
 */
 	rankdir=BT;
 	ordering="in";
diff --git a/chapter03/docs/03-graph2.gv b/chapter03/docs/03-graph2.gv
index 460b63c8..cafa7f25 100644
--- a/chapter03/docs/03-graph2.gv
+++ b/chapter03/docs/03-graph2.gv
@@ -1,6 +1,6 @@
 digraph chapter03 {
 /*
-int a=1; int b=2; int c=0; { int b=3; c=a+b; #showGraph; } return c; #showGraph;
+int a=1; int b=2; int c=0; { int b=3; c=a+b;  } return c;
 */
 	rankdir=BT;
 	ordering="in";
diff --git a/chapter03/docs/03-graph3.gv b/chapter03/docs/03-graph3.gv
index 50cb6d27..791a7dc1 100644
--- a/chapter03/docs/03-graph3.gv
+++ b/chapter03/docs/03-graph3.gv
@@ -1,6 +1,6 @@
 digraph chapter03 {
 /*
-int x0=1; int y0=2; int x1=3; int y1=4; return (x0-x1)*(x0-x1) + (y0-y1)*(y0-y1); #showGraph;
+int x0=1; int y0=2; int x1=3; int y1=4; return (x0-x1)*(x0-x1) + (y0-y1)*(y0-y1);
 */
 	rankdir=BT;
 	ordering="in";