Changeset: 04c535b05c52 for monetdb-java
URL: http://dev.monetdb.org/hg/monetdb-java?cmd=changeset;node=04c535b05c52
Modified Files:
src/main/java/nl/cwi/monetdb/mcl/parser/HeaderLineParser.java
src/main/java/nl/cwi/monetdb/mcl/parser/StartOfHeaderParser.java
Branch: default
Log Message:
Fixed negative number parsing on the StartOfHeaderParser
diffs (54 lines):
diff --git a/src/main/java/nl/cwi/monetdb/mcl/parser/HeaderLineParser.java
b/src/main/java/nl/cwi/monetdb/mcl/parser/HeaderLineParser.java
--- a/src/main/java/nl/cwi/monetdb/mcl/parser/HeaderLineParser.java
+++ b/src/main/java/nl/cwi/monetdb/mcl/parser/HeaderLineParser.java
@@ -157,6 +157,10 @@ public class HeaderLineParser extends MC
* Returns an array of ints containing the values between
* ',\t' separators.
*
+ * Feb2017 note - This integer parser doesn't have to parse negative
+ * numbers, because it is only used to parse column lengths
+ * which is always greater than 0.
+ *
* @param chrLine a character array holding the input data
* @param start where the relevant data starts
* @param stop where the relevant data stops
@@ -171,7 +175,6 @@ public class HeaderLineParser extends MC
if (chrLine[i] == ',' && chrLine[i + 1] == '\t') {
intValues[elem++] = tmp;
tmp = 0;
- start = i++;
} else {
tmp *= 10;
// note: don't use Character.isDigit() here,
because
diff --git a/src/main/java/nl/cwi/monetdb/mcl/parser/StartOfHeaderParser.java
b/src/main/java/nl/cwi/monetdb/mcl/parser/StartOfHeaderParser.java
--- a/src/main/java/nl/cwi/monetdb/mcl/parser/StartOfHeaderParser.java
+++ b/src/main/java/nl/cwi/monetdb/mcl/parser/StartOfHeaderParser.java
@@ -96,15 +96,18 @@ public class StartOfHeaderParser {
* @throws MCLParseException if no numeric value could be read
*/
public final int getNextAsInt() throws MCLParseException {
+ boolean positive = true;
pos++;
if (!soh.hasRemaining()) throw
new MCLParseException("unexpected end of string",
soh.position() - 1);
- int tmp;
+ int tmp = 0;
char chr = soh.get();
// note: don't use Character.isDigit() here, because
// we only want ISO-LATIN-1 digits
if (chr >= '0' && chr <= '9') {
tmp = (int)chr - (int)'0';
+ } else if(chr == '-') {
+ positive = false;
} else {
throw new MCLParseException("expected a digit",
soh.position() - 1);
}
@@ -118,7 +121,7 @@ public class StartOfHeaderParser {
}
}
- return tmp;
+ return positive ? tmp : -tmp;
}
public final String getNextAsString() throws MCLParseException {
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