163   this.ch = '\0';
176   var ch = s.charAt(i);
177   if ('&' === ch) {
198         ch = decoded;
202         ch = '\0';
207   this.ch = ch;
208   return this.ch;
213 function PR_isWordChar(ch) {  argument
214   return (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z');
217 function PR_isIdentifierStart(ch) {  argument
218   return PR_isWordChar(ch) || ch == '_' || ch == '$' || ch == '@';
221 function PR_isIdentifierPart(ch) {  argument
222   return PR_isIdentifierStart(ch) || PR_isDigitChar(ch);
225 function PR_isSpaceChar(ch) {  argument
226   return "\t \r\n".indexOf(ch) >= 0;
229 function PR_isDigitChar(ch) {  argument
230   return ch >= '0' && ch <= '9';
415       var ch = decodeHelper.ch;
417       switch (ch) {
580       var ch = decodeHelper.ch;
586           if ('<' == ch) { state = 1; }
587           if (ch.match(/[\r\n]/)) { state = 13; }
591           if ('/' == ch) {  // only consider close tags if we're in script/style
594             if ('!' == ch) {
596             } else if (PR_isWordChar(ch)) {
598             } else if ('?' == ch) {
600             } else if ('%' == ch) {
602             } else if ('<' != ch) {
605           } else if ('<' != ch) {
610           if ('-' == ch) {
612           } else if (PR_isWordChar(ch)) {
614           } else if ('<' == ch) {
621           if ('>' == ch) {
627           if ('-' == ch) { state = 5; }
630           if ('-' == ch) { state = 6; }
633           if ('>' == ch) {
636           } else if ('-' == ch) {
643           if (PR_isWordChar(ch)) {
645           } else if ('<' == ch) {
652           if ('>' == ch) {
658           if ('?' == ch) { state = 10; }
661           if ('>' == ch) {
664           } else if ('?' != ch) {
669           if ('%' == ch) { state = 12; }
672           if ('>' == ch) {
675           } else if ('%' != ch) {
681           if (!ch.match(/[\r\n]/)) {
690         tokenChars[tokenCharsI++] = ch.toLowerCase();
757         var ch = decodeHelper.ch;
760           if (ch == '"' || ch == '\'' || ch == '`') {
763             delim = ch;
764           } else if (ch == '/') {
766           } else if (ch == '#') {
771           if (ch == delim) {
773             tokenEnds.push(new PR_TokenEnd(k + next, '/'==ch?PR_REGEX:PR_STRING));
774           } else if (ch == '\\') {
780           if (ch == '/') {
783           } else if (ch == '*') {
804           if (ch == '\r' || ch == '\n') {
809           if (ch == '*') {
813           if (ch == '/') {
817           } else if (ch != '*') {
826           var isSpace = PR_isSpaceChar(ch);
829             lastCh = isSpace ? ' ' : ch;
872       var ch = decodeHelper.ch;
881         if (PR_isIdentifierStart(ch)) {
883         } else if (PR_isDigitChar(ch)) {
885         } else if (ch.match(/[\r\n]/)) {
887         } else if (!PR_isSpaceChar(ch)) {
897         if (!PR_isIdentifierPart(ch)) {
908         if (!(PR_isDigitChar(ch) || PR_isWordChar(ch) || ch == '_')) {
913         if (PR_isIdentifierStart(ch) || PR_isDigitChar(ch) ||
914             PR_isSpaceChar(ch)) {
927           var ch0 = wordDecodeHelper.ch;
946                   var ch1 = wordDecodeHelper.ch;
1015         var ch = decodeHelper.ch;
1020         if (ch == '>') {
1028               if ('<' == ch) { state = 1; }
1031               if (PR_isSpaceChar(ch)) { state = 2; }
1034               if (!PR_isSpaceChar(ch)) {
1041               if ('=' == ch) {
1045               } else if (PR_isSpaceChar(ch)) {
1052               if ('=' == ch) {
1054               } else if (!PR_isSpaceChar(ch)) {
1061               if ('"' == ch || '\'' == ch) {
1065                 delim = ch;
1066               } else if (!PR_isSpaceChar(ch)) {
1073               if (ch == delim) {
1080               if (PR_isSpaceChar(ch)) {
1149           if ('%' == decodeHelper.ch || '?' == decodeHelper.ch) {
1150             endScriptTag = decodeHelper.ch;