diff options
Diffstat (limited to 'chapter17/src/main/java/com/seaofnodes')
| -rw-r--r-- | chapter17/src/main/java/com/seaofnodes/simple/Parser.java | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/chapter17/src/main/java/com/seaofnodes/simple/Parser.java b/chapter17/src/main/java/com/seaofnodes/simple/Parser.java index 1cdf27fb..570ae67e 100644 --- a/chapter17/src/main/java/com/seaofnodes/simple/Parser.java +++ b/chapter17/src/main/java/com/seaofnodes/simple/Parser.java @@ -1412,6 +1412,7 @@ public class Parser { // Next oper= character, or 0. // As a convenience, mark "++" as a char 1 and "--" as char -1 (65535) + // Disallow e.g. "arg--1" which should parse as "arg - -1" public char matchOperAssign() { skipWhiteSpace(); if( _position+2 >= _input.length ) return 0; @@ -1419,6 +1420,7 @@ public class Parser { if( "+-/*&|^".indexOf(ch0) == -1 ) return 0; char ch1 = (char)_input[_position+1]; if( ch1 == '=' ) { _position += 2; return ch0; } + if( Character.isDigit(_input[_position+2]) ) return 0; if( ch0 == '+' && ch1 == '+' ) { _position += 2; return (char) 1; } if( ch0 == '-' && ch1 == '-' ) { _position += 2; return (char)-1; } return 0; |