Fix some sloppiness in new PL/python get_source_line() function.

Jan Urbański

diff --git a/src/pl/plpython/plpython.c b/src/pl/plpython/plpython.c
index 935258044db5ff0a7e1b2268d04afca095527b73..47d898a9765401fe0ccf6adf563c5f9166df7ecf 100644 (file)
--- a/src/pl/plpython/plpython.c
+++ b/src/pl/plpython/plpython.c
@@ -4484,12 +4484,11 @@ cleanup:
 static char *
 get_source_line(const char *src, int lineno)
 {
-       const char *s;
-       const char *next;
-       int             current = 0;
+       const char      *s               = NULL;
+       const char      *next    = src;
+       int                      current = 0;
 
-       next = src;
-       while (current != lineno)
+       while (current < lineno)
        {
                s = next;
                next = strchr(s + 1, '\n');
@@ -4501,7 +4500,7 @@ get_source_line(const char *src, int lineno)
        if (current != lineno)
                return NULL;
 
-       while (s && isspace((unsigned char) *s))
+       while (*s && isspace((unsigned char) *s))
                s++;
 
        if (next == NULL)