skip-ws, #1/6, prepare for rewrite, obj-invariant

src/frontend/com_let.c

@@ -111,7 +111,8 @@ com_let(wordlist *wl)
                 vec_free(t);
             free_pnode(names); /* frees also t, if pnode `names' is simple value */
 
-            for (s = q; *s && isspace_c(*s); s++)
+            s = q;
+            for (; *s && isspace_c(*s); s++)
                 ;
         }
     }

src/frontend/help/textdisp.c

@@ -72,7 +72,8 @@ hlp_thandle(topic **parent)
             return (NULL);
         }
 
-        for (s = buf; *s && isspace_c(*s); s++)
+        s = buf;
+        for (; *s && isspace_c(*s); s++)
             ;
         switch (*s) {
         case '?':

src/frontend/inp.c

@@ -420,9 +420,11 @@ inp_spsource(FILE *fp, bool comfile, char *filename, bool intfile)
 
             /* Put the first token from line into s */
             strncpy(name, dd->li_line, BSIZE_SP);
-            for (s = name; *s && isspace_c(*s); s++)
+            s = name;
+            for (; *s && isspace_c(*s); s++)
                 ;
-            for (t = s; *t && !isspace_c(*t); t++)
+            t = s;
+            for (; *t && !isspace_c(*t); t++)
                 ;
             *t = '\0';
 
@@ -807,7 +809,8 @@ inp_dodeck(
     if (!noparse) {
         struct line *opt_beg = options;
         for (; options; options = options->li_next) {
-            for (s = options->li_line; *s && !isspace_c(*s); s++)
+            s = options->li_line;
+            for (; *s && !isspace_c(*s); s++)
                 ;
 
             ii = cp_interactive;
@@ -988,7 +991,8 @@ inp_dodeck(
     if (!noparse) {
         /*
          * for (; options; options = options->li_next) {
-         *     for (s = options->li_line; *s && !isspace_c(*s); s++)
+         *     s = options->li_line;
+         *     for (; *s && !isspace_c(*s); s++)
          *         ;
          *     ii = cp_interactive;
          *     cp_interactive = FALSE;

src/frontend/nutinp.c

@@ -93,9 +93,11 @@ inp_nutsource(FILE *fp, bool comfile, char *filename)
                 continue;
             }
             (void) strncpy(name, dd->li_line, BSIZE_SP);
-            for (s = name; *s && isspace_c(*s); s++)
+            s = name;
+            for (; *s && isspace_c(*s); s++)
                 ;
-            for (t = s; *t && !isspace_c(*t); t++)
+            t = s;
+            for (; *t && !isspace_c(*t); t++)
                 ;
             *t = '\0';
 

src/frontend/subckt.c

@@ -1314,7 +1314,8 @@ finishLine(struct bxx_buffer *t, char *src, char *scname)
             bxx_putc(t, *src++);
             continue;
         }
-        for (s = src + 1; *s && isspace_c(*s); s++)
+        s = src + 1;
+        for (; *s && isspace_c(*s); s++)
             ;
         if (!*s || (*s != '(')) {
             lastwasalpha = isalpha_c(*src);

src/frontend/vectors.c

@@ -937,7 +937,8 @@ vec_basename(struct dvec *v)
     }
 
     strtolower(buf);
-    for (t = buf; isspace_c(*t); t++)
+    t = buf;
+    for (; isspace_c(*t); t++)
         ;
     s = t;
     for (t = s; *t; t++)