*: remove last function calls to isspace

function                                             old     new   delta
xstrtoul_range_sfx                                   232     231      -1
xstrtoull_range_sfx                                  295     293      -2
trim                                                  82      80      -2
trim_trailing_spaces_and_print                        57      52      -5
isspace                                               18       -     -18

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

coreutils/cal.c

@@ -262,7 +262,7 @@ static void trim_trailing_spaces_and_print(char *s)
 	}
 	while (p != s) {
 		--p;
-		if (!(isspace)(*p)) {	/* We want the function... not the inline. */
+		if (!isspace(*p)) {
 			p[1] = '\0';
 			break;
 		}

coreutils/wc.c

@@ -43,22 +43,19 @@
 
 #include "libbb.h"
 
-#if ENABLE_LOCALE_SUPPORT
-#define isspace_given_isprint(c) isspace(c)
-#else
-#undef isspace
-#undef isprint
-#define isspace(c) ((((c) == ' ') || (((unsigned int)((c) - 9)) <= (13 - 9))))
-#define isprint(c) (((unsigned int)((c) - 0x20)) <= (0x7e - 0x20))
-#define isspace_given_isprint(c) ((c) == ' ')
+#if !ENABLE_LOCALE_SUPPORT
+# undef isprint
+# undef isspace
+# define isprint(c) ((unsigned)((c) - 0x20) <= (0x7e - 0x20))
+# define isspace(c) ((c) == ' ')
 #endif
 
 #if ENABLE_FEATURE_WC_LARGE
-#define COUNT_T unsigned long long
-#define COUNT_FMT "llu"
+# define COUNT_T unsigned long long
+# define COUNT_FMT "llu"
 #else
-#define COUNT_T unsigned
-#define COUNT_FMT "u"
+# define COUNT_T unsigned
+# define COUNT_FMT "u"
 #endif
 
 enum {
@@ -123,11 +120,11 @@ int wc_main(int argc UNUSED_PARAM, char **argv)
 			c = getc(fp);
 			if (isprint(c)) {
 				++linepos;
-				if (!isspace_given_isprint(c)) {
+				if (!isspace(c)) {
 					in_word = 1;
 					continue;
 				}
-			} else if (((unsigned int)(c - 9)) <= 4) {
+			} else if ((unsigned)(c - 9) <= 4) {
 				/* \t  9
 				 * \n 10
 				 * \v 11

editors/sed.c

@@ -423,10 +423,10 @@ static const char *parse_cmd_args(sed_cmd_t *sed_cmd, const char *cmdstr)
 			if (*cmdstr == '\n' || *cmdstr == '\\') {
 				cmdstr++;
 				break;
-			} else if (isspace(*cmdstr))
-				cmdstr++;
-			else
+			}
+			if (!isspace(*cmdstr))
 				break;
+			cmdstr++;
 		}
 		sed_cmd->string = xstrdup(cmdstr);
 		/* "\anychar" -> "anychar" */

editors/vi.c

@@ -1783,23 +1783,23 @@ static int st_test(char *p, int type, int dir, char *tested)
 
 	if (type == S_BEFORE_WS) {
 		c = ci;
-		test = ((!isspace(c)) || c == '\n');
+		test = (!isspace(c) || c == '\n');
 	}
 	if (type == S_TO_WS) {
 		c = c0;
-		test = ((!isspace(c)) || c == '\n');
+		test = (!isspace(c) || c == '\n');
 	}
 	if (type == S_OVER_WS) {
 		c = c0;
-		test = ((isspace(c)));
+		test = isspace(c);
 	}
 	if (type == S_END_PUNCT) {
 		c = ci;
-		test = ((ispunct(c)));
+		test = ispunct(c);
 	}
 	if (type == S_END_ALNUM) {
 		c = ci;
-		test = ((isalnum(c)) || c == '_');
+		test = (isalnum(c) || c == '_');
 	}
 	*tested = c;
 	return test;

libbb/ask_confirmation.c

@@ -20,9 +20,7 @@ int FAST_FUNC bb_ask_confirmation(void)
 	int c;
 
 	while (((c = getchar()) != EOF) && (c != '\n')) {
-		/* Make sure we get the actual function call for isspace,
-		 * as speed is not critical here. */
-		if (first && !(isspace)(c)) {
+		if (first && !isspace(c)) {
 			--first;
 			if ((c == 'y') || (c == 'Y')) {
 				++retval;

libbb/trim.c

@@ -13,7 +13,6 @@
 void FAST_FUNC trim(char *s)
 {
 	size_t len = strlen(s);
-	size_t lws;
 
 	/* trim trailing whitespace */
 	while (len && isspace(s[len-1]))
@@ -21,10 +20,10 @@ void FAST_FUNC trim(char *s)
 
 	/* trim leading whitespace */
 	if (len) {
-		lws = strspn(s, " \n\r\t\v");
-		if (lws) {
-			len -= lws;
-			memmove(s, s + lws, len);
+		char *nws = skip_whitespace(s);
+		if ((nws - s) != 0) {
+			len -= (nws - s);
+			memmove(s, nws, len);
 		}
 	}
 	s[len] = '\0';

libbb/xatonum_template.c

@@ -25,9 +25,8 @@ unsigned type FAST_FUNC xstrtou(_range_sfx)(const char *numstr, int base,
 	int old_errno;
 	char *e;
 
-	/* Disallow '-' and any leading whitespace. Make sure we get the
-	 * actual isspace function rather than a macro implementaion. */
-	if (*numstr == '-' || *numstr == '+' || (isspace)(*numstr))
+	/* Disallow '-' and any leading whitespace. */
+	if (*numstr == '-' || *numstr == '+' || isspace(*numstr))
 		goto inval;
 
 	/* Since this is a lib function, we're not allowed to reset errno to 0.

shell/lash_unused.c

@@ -697,7 +697,7 @@ static char * strsep_space(char *string, int * ix)
 
 	/* Find the end of any whitespace trailing behind
 	 * the token and let that be part of the token */
-	while (string[*ix] && (isspace)(string[*ix]) ) {
+	while (string[*ix] && isspace(string[*ix])) {
 		(*ix)++;
 	}