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-rw-r--r--chapter01/README.md2
-rw-r--r--chapter01/docs/01-grammar.md1
-rw-r--r--chapter01/docs/01-graph.gv (renamed from chapter01/docs/02-graph.gv)0
-rw-r--r--chapter01/docs/01-graph.svg (renamed from chapter01/docs/02-graph.svg)0
-rw-r--r--chapter01/src/main/java/com/seaofnodes/simple/Parser.java4
-rw-r--r--chapter01/src/test/java/com/seaofnodes/simple/Chapter01Test.java (renamed from chapter01/src/test/java/com/seaofnodes/simple/ParserTest.java)4
6 files changed, 6 insertions, 5 deletions
diff --git a/chapter01/README.md b/chapter01/README.md
index f3231d8c..57caa801 100644
--- a/chapter01/README.md
+++ b/chapter01/README.md
@@ -113,7 +113,7 @@ Here is visualization of the program:
return 1;
```
-![Sea of Nodes Visual](./docs/02-graph.svg)
+![Sea of Nodes Visual](./docs/01-graph.svg)
* Control nodes appear as square boxes
* Control edges are in bold red
diff --git a/chapter01/docs/01-grammar.md b/chapter01/docs/01-grammar.md
index cf947dfc..5d9f3cf7 100644
--- a/chapter01/docs/01-grammar.md
+++ b/chapter01/docs/01-grammar.md
@@ -21,5 +21,6 @@ primaryExpression
INTEGER_LITERAL
: [1-9][0-9]*
+ | [0]
;
``` \ No newline at end of file
diff --git a/chapter01/docs/02-graph.gv b/chapter01/docs/01-graph.gv
index 40181544..40181544 100644
--- a/chapter01/docs/02-graph.gv
+++ b/chapter01/docs/01-graph.gv
diff --git a/chapter01/docs/02-graph.svg b/chapter01/docs/01-graph.svg
index fbf92d7d..fbf92d7d 100644
--- a/chapter01/docs/02-graph.svg
+++ b/chapter01/docs/01-graph.svg
diff --git a/chapter01/src/main/java/com/seaofnodes/simple/Parser.java b/chapter01/src/main/java/com/seaofnodes/simple/Parser.java
index 8fb1ebaf..cdfff842 100644
--- a/chapter01/src/main/java/com/seaofnodes/simple/Parser.java
+++ b/chapter01/src/main/java/com/seaofnodes/simple/Parser.java
@@ -80,7 +80,7 @@ public class Parser {
* Parse integer literal
*
* <pre>
- * integerLiteral: [1-9][0-9]*
+ * integerLiteral: [1-9][0-9]* | [0]
* </pre>
*/
private ConstantNode parseIntegerLiteral(Lexer lexer) {
@@ -245,7 +245,7 @@ public class Parser {
private Token parsePuncuation() {
int start = _position-1;
- while( isPunctuation(nextChar()) );
+ if( isPunctuation(nextChar()) );
return Token.newPunct(new String(_input,start,--_position-start));
}
diff --git a/chapter01/src/test/java/com/seaofnodes/simple/ParserTest.java b/chapter01/src/test/java/com/seaofnodes/simple/Chapter01Test.java
index 887f63b8..14c22437 100644
--- a/chapter01/src/test/java/com/seaofnodes/simple/ParserTest.java
+++ b/chapter01/src/test/java/com/seaofnodes/simple/Chapter01Test.java
@@ -4,7 +4,7 @@ import com.seaofnodes.simple.node.*;
import org.junit.Test;
import static org.junit.Assert.*;
-public class ParserTest {
+public class Chapter01Test {
@Test
public void testSimpleProgram() {
@@ -54,7 +54,7 @@ public class ParserTest {
@Test
public void testBad3() {
try { new Parser().parse("return --12;"); }
- catch( RuntimeException e ) { assertEquals("syntax error, expected integer literal: --",e.getMessage()); }
+ catch( RuntimeException e ) { assertEquals("syntax error, expected integer literal: -",e.getMessage()); }
}
@Test