ignore lines that contain only whitespace.

src/orderfile.c

@@ -95,15 +95,18 @@ static void handle_unit(void *userData, int no) {
 
 static void handle_order(void *userData, const char *str) {
     parser_state *state = (parser_state *)userData;
-    const char * tok, *input = str;
+    const char * tok, *input;
     char buffer[64];
     const struct locale *lang;
-    param_t p;
     faction * f = state->f;
 
     lang = f ? f->locale : default_locale;
+    ltrim(&str);
+    if (*str == 0) return;
+    input = str;
     tok = parse_token(&input, buffer, sizeof(buffer));
-    p = findparam(tok, lang);
+    if (tok) {
+        param_t p = findparam(tok, lang);
         if (p == P_FACTION || p == P_GAMENAME) {
             tok = parse_token(&input, buffer, sizeof(buffer));
             if (tok) {
@@ -143,6 +146,7 @@ static void handle_order(void *userData, const char *str) {
             }
         }
     }
+}
 
 int parseorders(FILE *F)
 {

src/util/parser.c

@@ -26,7 +26,7 @@ static parse_state *states;
 
 #define TRIMMED(wc) (iswspace(wc) || iswcntrl(wc) || (wc) == 160 || (wc) == 8199 || (wc) == 8239)
 
-static int ltrim(const char **str_p)
+int ltrim(const char **str_p)
 {
     int ret = 0;
     wint_t wc;

src/util/parser.h

@@ -22,6 +22,7 @@ extern "C" {
     int getint(void);
     int getid(void);
     unsigned int atoip(const char *s);
+    int ltrim(const char **str_p);
 
 #ifdef __cplusplus
 }