Fix many calls to ctype functions

Units/simple-diff.d/input.diff

@@ -106,7 +106,7 @@ index 0000000..a1bf5f3
 +		if (strncmp ((const char*) cp, DiffDelims[delim], 4u) == 0)
 +		{
 +			cp += 4;
-+			if (isspace ((int) *cp)) continue;
++			if (isspace (*cp)) continue;
 +			/* when original filename is /dev/null use the new one instead */
 +			if (delim == DIFF_DELIM_MINUS &&
 +				strncmp ((const char*) cp, "/dev/null", 9u) == 0 &&

dsl/dsl.c

@@ -803,7 +803,7 @@ static EsObject* caseop (EsObject *o, int (*op)(int))
 		char *r = strdup (s);
 
 		for (char *tmp = r; *tmp != '\0'; tmp++)
-			*tmp = op (*tmp);
+			*tmp = op ((unsigned char) *tmp);
 
 		EsObject *q = es_object_autounref (es_string_new (r));
 		free (r);

dsl/optscript.c

@@ -1160,7 +1160,7 @@ name_or_number_new (const char* s, void *data)
 	const char *t = s;
 	while (*t)
 	{
-		if (!isdigit ((int)*t))
+		if (!isdigit ((unsigned char) *t))
 		{
 			number = false;
 			break;

main/args.c

@@ -31,7 +31,7 @@ static char *nextStringArg (const char** const next)
 	const char* start;
 
 	Assert (*next != NULL);
-	for (start = *next  ;  isspace ((int) *start)  ;  ++start)
+	for (start = *next  ;  isspace ((unsigned char) *start)  ;  ++start)
 		;
 	if (*start == '\0')
 		*next = start;
@@ -40,7 +40,7 @@ static char *nextStringArg (const char** const next)
 		size_t length;
 		const char* end;
 
-		for (end = start ;  *end != '\0'  &&  ! isspace ((int) *end)  ;  ++end)
+		for (end = start; *end != '\0' && ! isspace ((unsigned char) *end); ++end)
 			;
 		length = end - start;
 		Assert (length > 0);
@@ -156,7 +156,7 @@ static char* nextFileLine (FILE* const fp)
 
 static bool isCommentLine (char* line)
 {
-	while (isspace(*line))
+	while (isspace((unsigned char) *line))
 		++line;
 	return (*line == '#');
 }

main/field.c

@@ -878,7 +878,7 @@ static const char* renderCompactInputLine (vString *b,  const char *const line)
 
 				/*  Consume repeating white space.
 				 */
-				while (next = *(p+1) , isspace (next)  &&  next != NEWLINE)
+				while (next = (unsigned char) *(p+1), isspace (next) && next != NEWLINE)
 					++p;
 				c = ' ';  /* force space character for any white space */
 			}
@@ -1328,7 +1328,7 @@ extern int defineField (fieldDefinition *def, langType language)
 	Assert (def->name);
 	for (i = 0; i < strlen (def->name); i++)
 	{
-		Assert ( isalpha (def->name [i]) );
+		Assert ( isalpha ((unsigned char) def->name [i]) );
 	}
 	def->letter = NUL_FIELD_LETTER;
 

main/keyword.c

@@ -74,17 +74,17 @@ static hashEntry *getHashTableEntry (unsigned long hashedValue)
 static unsigned int hashValue (const char *const string, langType language,
 	unsigned int maxLen, bool *maxLenReached)
 {
-	const signed char *p;
+	const char *p;
 	unsigned int h = 5381;
 
 	Assert (string != NULL);
 
 	/* "djb" hash as used in g_str_hash() in glib */
-	for (p = (const signed char *)string; *p != '\0'; p++)
+	for (p = string; *p != '\0'; p++)
 	{
-		h = (h << 5) + h + tolower (*p);
+		h = (h << 5) + h + (signed char) tolower ((unsigned char) *p);
 
-		if (p > (const signed char *)string + maxLen)
+		if (p > string + maxLen)
 		{
 			*maxLenReached = true;
 			return 0;

main/kind.c

@@ -91,7 +91,7 @@ static void initRoleObject (roleObject *robj, roleDefinition *rdef, freeRoleDefF
 #ifdef DEBUG
 	size_t len = strlen (rdef->name);
 	for (int i = 0; i < len; i++)
-		Assert (isalnum (rdef->name [i]));
+		Assert (isalnum ((unsigned char) rdef->name [i]));
 #endif
 	robj->def = rdef;
 	robj->free = freefunc;

main/lregex.c

@@ -824,7 +824,7 @@ static void pre_ptrn_flag_guest_long (const char* const s, const char* const v,
 	{
 		const char *n_tmp = v + 1;
 		const char *n = n_tmp;
-		for (; isdigit (*n_tmp); n_tmp++);
+		for (; isdigit ((unsigned char) *n_tmp); n_tmp++);
 		char c = *n_tmp;
 		*(char *)n_tmp = '\0';
 		if (!strToInt (n, 10, &(guest->lang.spec.patternGroup)))
@@ -886,7 +886,7 @@ static void pre_ptrn_flag_guest_long (const char* const s, const char* const v,
 		{
 			char *n = tmp;
 
-			for (; isdigit (*tmp); tmp++);
+			for (; isdigit ((unsigned char) *tmp); tmp++);
 			char c = *tmp;
 			*tmp = '\0';
 			if (!strToInt (n, 10, &(current->patternGroup)))
@@ -1599,7 +1599,7 @@ static vString* substitute (
 	const char* p;
 	for (p = out  ;  *p != '\0'  ;  p++)
 	{
-		if (*p == '\\'  &&  isdigit ((int) *++p))
+		if (*p == '\\'  &&  isdigit ((unsigned char) *++p))
 		{
 			const int dig = *p - '0';
 			if (0 < dig  &&  dig < nmatch  &&  pmatch [dig].rm_so != -1)
@@ -2294,7 +2294,7 @@ static regexPattern *addTagRegexInternal (struct lregexControlBlock *lcb,
 	{
 		if (p == kindName)
 		{
-			if (!isalpha(*p))
+			if (!isalpha((unsigned char) *p))
 				error (FATAL,
 					   "A kind name doesn't start with an alphabetical character: "
 					   "'%s' in \"--%s-%s\" option",
@@ -2310,7 +2310,7 @@ static regexPattern *addTagRegexInternal (struct lregexControlBlock *lcb,
 			 * in which Exuberant-ctags users define kind names with whitespaces.
 			 * "FATAL" error breaks the compatibility.
 			 */
-			if (!isalnum(*p))
+			if (!isalnum((unsigned char) *p))
 				error (/* regptype == REG_PARSER_SINGLE_LINE? WARNING: */ FATAL,
 					   "Non-alphanumeric char is used in kind name: "
 					   "'%s' in \"--%s-%s\" option",
@@ -2433,7 +2433,7 @@ static void addTagRegexOption (struct lregexControlBlock *lcb,
 		const char *c;
 		for (c = pattern; *c; c++)
 		{
-			if (! (isalnum(*c) || *c == '_'))
+			if (! (isalnum((unsigned char) *c) || *c == '_'))
 			{
 				if (*c &&  (*(c + 1) != '^'))
 				{
@@ -2652,7 +2652,7 @@ extern void addRegexTable (struct lregexControlBlock *lcb, const char *name)
 {
 	const char *c;
 	for (c = name; *c; c++)
-		if (! (isalnum(*c) || *c == '_'))
+		if (! (isalnum((unsigned char) *c) || *c == '_'))
 			error (FATAL, "`%c' in \"%s\" is not acceptable as part of table name", *c, name);
 
 	if (getTableIndexForName(lcb, name) >= 0)

main/options.c

@@ -2604,7 +2604,7 @@ static void processIgnoreOption (const char *const list, int IgnoreOrDefine)
 		addIgnoreListFromFile (lang, fileName);
 	}
 #if defined (WIN32)
-	else if (isalpha (list [0])  &&  list [1] == ':')
+	else if (isalpha ((unsigned char) list [0])  &&  list [1] == ':')
 		addIgnoreListFromFile (lang, list);
 #endif
 	else if (strcmp (list, "-") == 0)

main/parse.c

@@ -573,7 +573,7 @@ static bool processLangDefineScopesep(const langType language,
 		error (FATAL,
 			   "the kind letter `%c' in \"--%s\" option is reserved for \"%s\" kind and no separator can be assigned to",
 			   KIND_FILE_DEFAULT_LETTER, option, KIND_FILE_DEFAULT_NAME);
-	else if (isalpha (parentKletter))
+	else if (isalpha ((unsigned char) parentKletter))
 	{
 		kindDefinition *kdef = getKindForLetter (parser->kindControlBlock, parentKletter);
 		if (kdef == NULL)
@@ -623,7 +623,7 @@ static bool processLangDefineScopesep(const langType language,
 		error (FATAL,
 			   "the kind letter `%c' in \"--%s\" option is reserved for \"%s\" kind and no separator can be assigned to",
 			   KIND_FILE_DEFAULT_LETTER, option, KIND_FILE_DEFAULT_NAME);
-	else if (isalpha (kletter))
+	else if (isalpha ((unsigned char) kletter))
 	{
 		kindDefinition *kdef = getKindForLetter (parser->kindControlBlock, kletter);
 		if (kdef == NULL)
@@ -748,9 +748,9 @@ static vString* determineInterpreter (const char* const cmd)
 	do
 	{
 		vStringClear (interpreter);
-		for ( ;  isspace ((int) *p)  ;  ++p)
+		for ( ;  isspace ((unsigned char) *p)  ;  ++p)
 			;  /* no-op */
-		for ( ;  *p != '\0'  &&  ! isspace ((int) *p)  ;  ++p)
+		for ( ;  *p != '\0'  &&  ! isspace ((unsigned char) *p)  ;  ++p)
 			vStringPut (interpreter, *p);
 	} while (strcmp (vStringValue (interpreter), "env") == 0);
 	return interpreter;
@@ -795,7 +795,7 @@ static bool isShellZsh (const char *p)
 
 	if (*p == ':')
 		p++;
-	while (isspace ((int) *p))
+	while (isspace ((unsigned char) *p))
 		p++;
 
 	if (strncmp (p, "\"zsh\"", 5) == 0
@@ -813,16 +813,16 @@ static vString* determineEmacsModeAtFirstLine (const char* const line)
 		goto out;
 	p += strlen("-*-");
 
-	for ( ;  isspace ((int) *p)  ;  ++p)
+	for ( ;  isspace ((unsigned char) *p)  ;  ++p)
 		;  /* no-op */
 
 	if (strncasecmp(p, "mode:", strlen("mode:")) == 0)
 	{
 		/* -*- mode: MODE; -*- */
 		p += strlen("mode:");
-		for ( ;  isspace ((int) *p)  ;  ++p)
+		for ( ;  isspace ((unsigned char) *p)  ;  ++p)
 			;  /* no-op */
-		for ( ;  *p != '\0'  &&  isLanguageNameChar ((int) *p)  ;  ++p)
+		for ( ;  *p != '\0'  &&  isLanguageNameChar ((unsigned char) *p)  ;  ++p)
 			vStringPut (mode, *p);
 
 		if ((strcmp(vStringValue (mode), "sh") == 0
@@ -838,10 +838,10 @@ static vString* determineEmacsModeAtFirstLine (const char* const line)
 		if (end == NULL)
 			goto out;
 
-		for ( ;  p < end &&  isLanguageNameChar ((int) *p)  ;  ++p)
+		for ( ;  p < end &&  isLanguageNameChar ((unsigned char) *p)  ;  ++p)
 			vStringPut (mode, *p);
 
-		for ( ;  isspace ((int) *p)  ;  ++p)
+		for ( ;  isspace ((unsigned char) *p)  ;  ++p)
 			;  /* no-op */
 		if (strncmp(p, "-*-", strlen("-*-")) != 0)
 			vStringClear (mode);
@@ -888,9 +888,9 @@ static vString* determineEmacsModeAtEOF (MIO* const fp)
 			headerFound = false;
 
 			p += strlen ("mode:");
-			for ( ;  isspace ((int) *p)  ;  ++p)
+			for ( ;  isspace ((unsigned char) *p)  ;  ++p)
 				;  /* no-op */
-			for ( ;  *p != '\0'  &&  isLanguageNameChar ((int) *p)  ;  ++p)
+			for ( ;  *p != '\0'  &&  isLanguageNameChar ((unsigned char) *p)  ;  ++p)
 				vStringPut (mode, *p);
 
 			is_shell_mode = ((strcasecmp (vStringValue (mode), "sh") == 0
@@ -903,7 +903,7 @@ static vString* determineEmacsModeAtEOF (MIO* const fp)
 		else if (is_shell_mode && (p = strstr (line, "sh-set-shell")))
 		{
 			p += strlen("sh-set-shell");
-			while (isspace ((int) *p))
+			while (isspace ((unsigned char) *p))
 				p++;
 			if (strncmp (p, "\"zsh\"", 5) == 0)
 				vStringCopyS (mode, "Zsh");
@@ -954,7 +954,7 @@ static vString* determineVimFileType (const char *const modeline)
 			continue;
 
 		p += strlen(filetype_prefix[i]);
-		for ( ;  *p != '\0'  &&  isalnum ((int) *p)  ;  ++p)
+		for ( ;  *p != '\0'  &&  isalnum ((unsigned char) *p)  ;  ++p)
 			vStringPut (filetype, *p);
 		break;
 	}
@@ -1011,7 +1011,7 @@ static vString* extractVimFileTypeCommon(MIO* input, bool eof)
 			if ((p = strstr (vStringValue (ring[j]), prefix[k])) != NULL)
 			{
 				p += strlen(prefix[k]);
-				for ( ;  isspace ((int) *p)  ;  ++p)
+				for ( ;  isspace ((unsigned char) *p)  ;  ++p)
 					;  /* no-op */
 				filetype = determineVimFileType(p);
 				break;
@@ -1066,9 +1066,11 @@ static vString* determineZshAutoloadTag (const char *const modeline,
 	   #compdef ...
 	   #autoload [ OPTIONS ] */
 
-	if (((strncmp (modeline, "#compdef", 8) == 0) && isspace (*(modeline + 8)))
+	if (((strncmp (modeline, "#compdef", 8) == 0)
+	     && isspace ((unsigned char) *(modeline + 8)))
 	    || ((strncmp (modeline, "#autoload", 9) == 0)
-		&& (isspace (*(modeline + 9)) || *(modeline + 9) == '\0')))
+	        && (isspace ((unsigned char) *(modeline + 9))
+	            || *(modeline + 9) == '\0')))
 		return vStringNewInit ("zsh");
 	else
 		return NULL;
@@ -2701,7 +2703,7 @@ static bool processLangDefineKind(const langType language,
 	{
 		if (p == name_start)
 		{
-			if (!isalpha(*p))
+			if (!isalpha((unsigned char) *p))
 			{
 				char *name_in_msg = eStrndup (name_start, marker_end - name_start);
 				error (FATAL,
@@ -2712,7 +2714,7 @@ static bool processLangDefineKind(const langType language,
 		}
 		else
 		{
-			if (!isalnum (*p))
+			if (!isalnum ((unsigned char) *p))
 			{
 				char *name_in_msg = eStrndup (name_start, marker_end - name_start);
 				error (FATAL,
@@ -2833,7 +2835,7 @@ static bool processLangDefineRole(const langType language,
 	const char * tmp_start = p;
 	while (p != tmp_end)
 	{
-		if (!isalnum (*p))
+		if (!isalnum ((unsigned char) *p))
 			error (FATAL, "unacceptable char as part of role name in \"--%s\" option: %c",
 				   option, *p);
 		p++;
@@ -3518,7 +3520,7 @@ static bool processLangDefineParam (const langType language,
 
 	for (; p < name_end; p++)
 	{
-		if (!isalnum (*p) && *p != '_')
+		if (!isalnum ((unsigned char) *p) && *p != '_')
 			error (FATAL, "unacceptable char as part of extra name in \"--%s\" option",
 				   option);
 	}
@@ -3914,7 +3916,7 @@ static bool processLangDefineExtra (const langType language,
 
 	for (; p < name_end; p++)
 	{
-		if (!isalnum (*p))
+		if (!isalnum ((unsigned char) *p))
 			error (FATAL, "unacceptable char as part of extra name in \"--%s\" option",
 				   option);
 	}
@@ -3983,7 +3985,7 @@ static bool processLangDefineField (const langType language,
 
 	for (; p < name_end; p++)
 	{
-		if (!isalpha (*p))
+		if (!isalpha ((unsigned char) *p))
 			error (FATAL, "unacceptable char as part of field name in \"--%s\" option",
 				   option);
 	}

main/read.c

@@ -529,7 +529,7 @@ static unsigned long readLineNumber (char **str)
 
 	skipWhite (str);
 	s = *str;
-	while (*s != '\0' && isdigit (*s))
+	while (*s != '\0' && isdigit ((unsigned char) *s))
 	{
 		lNum = (lNum * 10) + (*s - '0');
 		s++;
@@ -578,7 +578,7 @@ static bool parseLineDirective (char *s)
 	skipWhite (&s);
 	DebugStatement ( const char* lineStr = ""; )
 
-	if (isdigit (*s))
+	if (isdigit ((unsigned char) *s))
 		result = true;
 	else if (strncmp (s, "line", 4) == 0)
 	{