Fix debug assertions for bug #3000566.

1 files changed, 6 insertions, 6 deletions

diff --git a/src/LexConf.cxx b/src/LexConf.cxx
index 969275f92..7b066af7b 100644
--- a/src/LexConf.cxx
+++ b/src/LexConf.cxx
@@ -70,17 +70,17 @@ static void ColouriseConfDoc(unsigned int startPos, int length, int, WordList *k
 				} else if( ch == '"') {
 					state = SCE_CONF_STRING;
 					styler.ColourTo(i,SCE_CONF_STRING);
-				} else if( ispunct(ch) ) {
+				} else if( isascii(ch) && ispunct(ch) ) {
 					// signals an operator...
 					// no state jump necessary for this
 					// simple case...
 					styler.ColourTo(i,SCE_CONF_OPERATOR);
-				} else if( isalpha(ch) ) {
+				} else if( isascii(ch) && isalpha(ch) ) {
 					// signals the start of an identifier
 					bufferCount = 0;
 					buffer[bufferCount++] = static_cast<char>(tolower(ch));
 					state = SCE_CONF_IDENTIFIER;
-				} else if( isdigit(ch) ) {
+				} else if( isascii(ch) && isdigit(ch) ) {
 					// signals the start of a number
 					bufferCount = 0;
 					buffer[bufferCount++] = ch;
@@ -107,7 +107,7 @@ static void ColouriseConfDoc(unsigned int startPos, int length, int, WordList *k
 				// if we find a non-alphanumeric char,
 				// we simply go to default state
 				// else we're still dealing with an extension...
-				if( isalnum(ch) || (ch == '_') ||
+				if( (isascii(ch) && isalnum(ch)) || (ch == '_') ||
 					(ch == '-') || (ch == '$') ||
 					(ch == '/') || (ch == '.') || (ch == '*') )
 				{
@@ -129,7 +129,7 @@ static void ColouriseConfDoc(unsigned int startPos, int length, int, WordList *k
 
 			case SCE_CONF_IDENTIFIER:
 				// stay  in CONF_IDENTIFIER state until we find a non-alphanumeric
-				if( isalnum(ch) || (ch == '_') || (ch == '-') || (ch == '/') || (ch == '$') || (ch == '.') || (ch == '*')) {
+				if( (isascii(ch) && isalnum(ch)) || (ch == '_') || (ch == '-') || (ch == '/') || (ch == '$') || (ch == '.') || (ch == '*')) {
 					buffer[bufferCount++] = static_cast<char>(tolower(ch));
 				} else {
 					state = SCE_CONF_DEFAULT;
@@ -154,7 +154,7 @@ static void ColouriseConfDoc(unsigned int startPos, int length, int, WordList *k
 
 			case SCE_CONF_NUMBER:
 				// stay  in CONF_NUMBER state until we find a non-numeric
-				if( isdigit(ch) || ch == '.') {
+				if( (isascii(ch) && isdigit(ch)) || ch == '.') {
 					buffer[bufferCount++] = ch;
 				} else {
 					state = SCE_CONF_DEFAULT;