detail ('signal' -> 'sign' in comments)

lbaselib.c

@@ -1,5 +1,5 @@
 /*
-** $Id: lbaselib.c,v 1.316 2017/05/26 19:14:29 roberto Exp roberto $
+** $Id: lbaselib.c,v 1.317 2017/06/27 18:32:49 roberto Exp roberto $
 ** Basic library
 ** See Copyright Notice in lua.h
 */
@@ -49,7 +49,7 @@ static const char *b_str2int (const char *s, int base, lua_Integer *pn) {
   lua_Unsigned n = 0;
   int neg = 0;
   s += strspn(s, SPACECHARS);  /* skip initial spaces */
-  if (*s == '-') { s++; neg = 1; }  /* handle signal */
+  if (*s == '-') { s++; neg = 1; }  /* handle sign */
   else if (*s == '+') s++;
   if (!isalnum((unsigned char)*s))  /* no digit? */
     return NULL;

lbitlib.c

@@ -1,5 +1,5 @@
 /*
-** $Id: lbitlib.c,v 1.29 2015/10/08 15:55:35 roberto Exp roberto $
+** $Id: lbitlib.c,v 1.30 2015/11/11 19:08:09 roberto Exp roberto $
 ** Standard library for bitwise operations
 ** See Copyright Notice in lua.h
 */
@@ -131,7 +131,7 @@ static int b_arshift (lua_State *L) {
   else {  /* arithmetic shift for 'negative' number */
     if (i >= LUA_NBITS) r = ALLONES;
     else
-      r = trim((r >> i) | ~(trim(~(lua_Unsigned)0) >> i));  /* add signal bit */
+      r = trim((r >> i) | ~(trim(~(lua_Unsigned)0) >> i));  /* add sign bit */
     pushunsigned(L, r);
     return 1;
   }

liolib.c

@@ -1,5 +1,5 @@
 /*
-** $Id: liolib.c,v 2.151 2016/12/20 18:37:00 roberto Exp roberto $
+** $Id: liolib.c,v 2.152 2017/02/09 14:50:05 roberto Exp roberto $
 ** Standard I/O (and system) library
 ** See Copyright Notice in lua.h
 */
@@ -447,7 +447,7 @@ static int read_number (lua_State *L, FILE *f) {
   decp[1] = '.';  /* always accept a dot */
   l_lockfile(rn.f);
   do { rn.c = l_getc(rn.f); } while (isspace(rn.c));  /* skip spaces */
-  test2(&rn, "-+");  /* optional signal */
+  test2(&rn, "-+");  /* optional sign */
   if (test2(&rn, "00")) {
     if (test2(&rn, "xX")) hex = 1;  /* numeral is hexadecimal */
     else count = 1;  /* count initial '0' as a valid digit */
@@ -456,7 +456,7 @@ static int read_number (lua_State *L, FILE *f) {
   if (test2(&rn, decp))  /* decimal point? */
     count += readdigits(&rn, hex);  /* fractional part */
   if (count > 0 && test2(&rn, (hex ? "pP" : "eE"))) {  /* exponent mark? */
-    test2(&rn, "-+");  /* exponent signal */
+    test2(&rn, "-+");  /* exponent sign */
     readdigits(&rn, 0);  /* exponent digits */
   }
   ungetc(rn.c, rn.f);  /* unread look-ahead char */

lobject.c

@@ -1,5 +1,5 @@
 /*
-** $Id: lobject.c,v 2.118 2017/10/10 20:05:40 roberto Exp roberto $
+** $Id: lobject.c,v 2.119 2017/11/08 14:50:23 roberto Exp roberto $
 ** Some generic functions over Lua objects
 ** See Copyright Notice in lua.h
 */
@@ -206,7 +206,7 @@ static lua_Number lua_strx2number (const char *s, char **endptr) {
   int hasdot = 0;  /* true after seen a dot */
   *endptr = cast(char *, s);  /* nothing is valid yet */
   while (lisspace(cast_uchar(*s))) s++;  /* skip initial spaces */
-  neg = isneg(&s);  /* check signal */
+  neg = isneg(&s);  /* check sign */
   if (!(*s == '0' && (*(s + 1) == 'x' || *(s + 1) == 'X')))  /* check '0x' */
     return 0.0;  /* invalid format (no '0x') */
   for (s += 2; ; s++) {  /* skip '0x' and read numeral */
@@ -230,9 +230,9 @@ static lua_Number lua_strx2number (const char *s, char **endptr) {
   e *= 4;  /* each digit multiplies/divides value by 2^4 */
   if (*s == 'p' || *s == 'P') {  /* exponent part? */
     int exp1 = 0;  /* exponent value */
-    int neg1;  /* exponent signal */
+    int neg1;  /* exponent sign */
     s++;  /* skip 'p' */
-    neg1 = isneg(&s);  /* signal */
+    neg1 = isneg(&s);  /* sign */
     if (!lisdigit(cast_uchar(*s)))
       return 0.0;  /* invalid; must have at least one digit */
     while (lisdigit(cast_uchar(*s)))  /* read exponent */

lstrlib.c

@@ -1,5 +1,5 @@
 /*
-** $Id: lstrlib.c,v 1.257 2017/07/07 16:34:32 roberto Exp roberto $
+** $Id: lstrlib.c,v 1.258 2017/11/08 14:50:23 roberto Exp roberto $
 ** Standard library for string operations and pattern-matching
 ** See Copyright Notice in lua.h
 */
@@ -994,7 +994,7 @@ static int num2straux (char *buff, int sz, lua_Number x) {
     lua_Number m = l_mathop(frexp)(x, &e);  /* 'x' fraction and exponent */
     int n = 0;  /* character count */
     if (m < 0) {  /* is number negative? */
-      buff[n++] = '-';  /* add signal */
+      buff[n++] = '-';  /* add sign */
       m = -m;  /* make it positive */
     }
     buff[n++] = '0'; buff[n++] = 'x';  /* add "0x" */