scanner: Improve XML parse error reporting

Print the parse error and exit with a failure if expat can't parse the
XML.

Signed-off-by: Jonas Ådahl <jadahl@gmail.com>

diff --git a/src/scanner.c b/src/scanner.c
index 72fd3e8..6be1d7a 100644 (file)
--- a/src/scanner.c
+++ b/src/scanner.c
@@ -1296,8 +1296,14 @@ int main(int argc, char *argv[])
                        fprintf(stderr, "fread: %m\n");
                        exit(EXIT_FAILURE);
                }
-               XML_ParseBuffer(ctx.parser, len, len == 0);
-
+               if (XML_ParseBuffer(ctx.parser, len, len == 0) == 0) {
+                       fprintf(stderr,
+                               "Error parsing XML at line %ld col %ld: %s\n",
+                               XML_GetCurrentLineNumber(ctx.parser),
+                               XML_GetCurrentColumnNumber(ctx.parser),
+                               XML_ErrorString(XML_GetErrorCode(ctx.parser)));
+                       exit(EXIT_FAILURE);
+               }
        } while (len > 0);
 
        XML_ParserFree(ctx.parser);