11/*
2- * @(#)StringUtils.cs 5.2.0 2023-01-07
2+ * @(#)StringUtils.cs 5.2.0 2023-01-17
33 *
44 * MathParser.org-mXparser DUAL LICENSE AGREEMENT as of date 2022-05-22
55 * The most up-to-date license is available at the below link:
180180 */
181181using System ;
182182using System . Globalization ;
183+ using System . Text ;
183184using System . Text . RegularExpressions ;
184185using org . mariuszgromada . math . mxparser ;
185186
@@ -461,6 +462,243 @@ internal static void consolePrintln() {
461462 }
462463 internal static void consolePrintln ( Object o ) {
463464 mXparser . consoleWriteLine ( o ) ;
465+ }
466+ internal static String cleanForHtml ( String text ) {
467+ return text . Replace ( "&" , "&" ) . Replace ( "<" , "<" ) . Replace ( ">" , ">" ) ;
468+ }
469+ internal static String cleanForMarkdown ( String text ) {
470+ return text . Replace ( "\\ " , "\\ \\ " ) . Replace ( "|" , "\\ |" ) ;
471+ }
472+ internal static String cleanForJson ( String text ) {
473+ return text . Replace ( "\\ " , "\\ \\ " ) ;
474+ }
475+ internal static void stringBuilderPartsAppend ( StringBuilder stringBuilder , params String [ ] partsToAppend ) {
476+ foreach ( String part in partsToAppend ) {
477+ stringBuilder . Append ( part ) ;
478+ }
479+ }
480+ internal static void stringBuilderLinesAppend ( StringBuilder stringBuilder , params String [ ] linesToAppend ) {
481+ foreach ( String line in linesToAppend ) {
482+ stringBuilder . Append ( line ) ;
483+ stringBuilder . Append ( StringInvariant . NEW_LINE ) ;
484+ }
485+ }
486+ internal static void stringBuilderPartsAppendDelimited (
487+ String partTagLeft
488+ , String partTagRight
489+ , String delimiter
490+ , bool clearForHtml
491+ , bool clearForMarkdown
492+ , bool clearForJson
493+ , StringBuilder stringBuilder
494+ , params String [ ] partsToAppend
495+ ) {
496+ int n = 0 ;
497+ foreach ( String part in partsToAppend ) {
498+ n ++ ;
499+ if ( n > 1 ) stringBuilder . Append ( delimiter ) ;
500+ stringBuilder . Append ( partTagLeft ) ;
501+
502+ String partFinal = part ;
503+ if ( clearForHtml )
504+ partFinal = cleanForHtml ( partFinal ) ;
505+ if ( clearForMarkdown )
506+ partFinal = cleanForMarkdown ( partFinal ) ;
507+
508+ if ( clearForJson )
509+ partFinal = cleanForJson ( partFinal ) ;
510+
511+ stringBuilder . Append ( partFinal ) ;
512+
513+ stringBuilder . Append ( partTagRight ) ;
514+ }
515+ }
516+ internal static void stringBuilderPartsAppendDelimited ( String partQuote , String delimiter , StringBuilder stringBuilder , params String [ ] partsToAppend ) {
517+ stringBuilderPartsAppendDelimited ( partQuote , partQuote , delimiter , false , false , false , stringBuilder , partsToAppend ) ;
518+ }
519+ internal static void stringBuilderPartsAppendDelimitedRow (
520+ String partTagLeft
521+ , String partTagRight
522+ , String delimiter
523+ , String rowBeforeTag
524+ , String rowAfterTag
525+ , bool clearForHtml
526+ , bool clearForMarkdown
527+ , bool clearForJson
528+ , StringBuilder stringBuilder
529+ , params String [ ] partsToAppend
530+ ) {
531+ bool tagBefore = rowBeforeTag == null || rowBeforeTag . Length > 0 ;
532+ bool tagAfter = rowAfterTag == null || rowAfterTag . Length > 0 ;
533+
534+ if ( tagBefore ) stringBuilder . Append ( rowBeforeTag ) ;
535+ stringBuilderPartsAppendDelimited ( partTagLeft , partTagRight , delimiter , clearForHtml , clearForMarkdown , clearForJson , stringBuilder , partsToAppend ) ;
536+ if ( tagAfter ) stringBuilder . Append ( rowAfterTag ) ;
537+ }
538+ internal static void stringBuilderPartsAppendDelimitedRow (
539+ String partQuote
540+ , String delimiter
541+ , bool newLineBefore
542+ , bool clearForHtml
543+ , bool clearForMarkdown
544+ , bool clearForJson
545+ , StringBuilder stringBuilder
546+ , params String [ ] partsToAppend
547+ ) {
548+ if ( newLineBefore )
549+ stringBuilderPartsAppendDelimitedRow ( partQuote , partQuote , delimiter , StringInvariant . NEW_LINE , "" , clearForHtml , clearForMarkdown , clearForJson , stringBuilder , partsToAppend ) ;
550+ else
551+ stringBuilderPartsAppendDelimitedRow ( partQuote , partQuote , delimiter , "" , "" , clearForHtml , clearForMarkdown , clearForJson , stringBuilder , partsToAppend ) ;
552+ }
553+ internal static void stringBuilderPartsAppendDelimitedRow (
554+ String partQuote
555+ , String delimiter
556+ , bool newLineBefore
557+ , StringBuilder stringBuilder
558+ , params String [ ] partsToAppend
559+ ) {
560+ stringBuilderPartsAppendDelimitedRow ( partQuote , delimiter , newLineBefore , false , false , false , stringBuilder , partsToAppend ) ;
561+ }
562+
563+ private const String HTML_TD_START_TAG = "<td>" ;
564+ private const String HTML_TD_END_TAG = "</td>" ;
565+ private const String HTML_TH_START_TAG = "<th>" ;
566+ private const String HTML_TH_END_TAG = "</th>" ;
567+ private const String HTML_TR_START_TAG = "<tr>" ;
568+ private static readonly String HTML_TR_END_TAG = "</tr>" + StringInvariant . NEW_LINE ;
569+
570+ internal static void stringBuilderPartsAppendHtmlTableRow ( StringBuilder stringBuilder , params String [ ] partsToAppend ) {
571+ stringBuilderPartsAppendDelimitedRow (
572+ HTML_TD_START_TAG
573+ , HTML_TD_END_TAG
574+ , StringInvariant . EMPTY
575+ , HTML_TR_START_TAG
576+ , HTML_TR_END_TAG
577+ , true
578+ , false
579+ , false
580+ , stringBuilder
581+ , partsToAppend
582+ ) ;
583+ }
584+
585+ internal static void stringBuilderPartsAppendHtmlTableHead ( StringBuilder stringBuilder , params String [ ] partsToAppend ) {
586+ stringBuilderPartsAppendDelimitedRow (
587+ HTML_TH_START_TAG
588+ , HTML_TH_END_TAG
589+ , StringInvariant . EMPTY
590+ , HTML_TR_START_TAG
591+ , HTML_TR_END_TAG
592+ , true
593+ , false
594+ , false
595+ , stringBuilder
596+ , partsToAppend ) ;
597+ }
598+ private const String MARKDOWN_DELIMITER = "|" ;
599+ private const String MARKDOWN_ROW_BEFORE_TAG = "|" ;
600+ private static readonly String MARKDOWN_ROW_AFTER_TAG = "|" + StringInvariant . NEW_LINE ;
601+ private const String MARKDOWN_HEADER_TAG = "---" ;
602+ internal static void stringBuilderPartsAppendMarkdownTableRow ( StringBuilder stringBuilder , params String [ ] partsToAppend ) {
603+ stringBuilderPartsAppendDelimitedRow (
604+ StringInvariant . EMPTY
605+ , StringInvariant . EMPTY
606+ , MARKDOWN_DELIMITER
607+ , MARKDOWN_ROW_BEFORE_TAG
608+ , MARKDOWN_ROW_AFTER_TAG
609+ , false
610+ , true
611+ , false
612+ , stringBuilder
613+ , partsToAppend
614+ ) ;
615+ }
616+
617+ internal static void stringBuilderPartsAppendMarkdownTableHead ( bool addHeader , StringBuilder stringBuilder , params String [ ] partsToAppend ) {
618+ if ( ! addHeader ) {
619+ String [ ] mdTableEmptyHeader = new String [ partsToAppend . Length ] ;
620+ for ( int i = 0 ; i < mdTableEmptyHeader . Length ; i ++ )
621+ mdTableEmptyHeader [ i ] = " " ;
622+ stringBuilderPartsAppendDelimitedRow (
623+ StringInvariant . EMPTY
624+ , StringInvariant . EMPTY
625+ , MARKDOWN_DELIMITER
626+ , MARKDOWN_ROW_BEFORE_TAG
627+ , MARKDOWN_ROW_AFTER_TAG
628+ , false
629+ , false
630+ , false
631+ , stringBuilder
632+ , mdTableEmptyHeader
633+ ) ;
634+ } else
635+ stringBuilderPartsAppendDelimitedRow (
636+ StringInvariant . EMPTY
637+ , StringInvariant . EMPTY
638+ , MARKDOWN_DELIMITER
639+ , MARKDOWN_ROW_BEFORE_TAG
640+ , MARKDOWN_ROW_AFTER_TAG
641+ , false
642+ , true
643+ , false
644+ , stringBuilder
645+ , partsToAppend
646+ ) ;
647+
648+ String [ ] mdTableStructure = new String [ partsToAppend . Length ] ;
649+ for ( int i = 0 ; i < mdTableStructure . Length ; i ++ )
650+ mdTableStructure [ i ] = MARKDOWN_HEADER_TAG ;
651+
652+ stringBuilderPartsAppendDelimitedRow (
653+ StringInvariant . EMPTY
654+ , StringInvariant . EMPTY
655+ , MARKDOWN_DELIMITER
656+ , MARKDOWN_ROW_BEFORE_TAG
657+ , MARKDOWN_ROW_AFTER_TAG
658+ , false
659+ , false
660+ , false
661+ , stringBuilder
662+ , mdTableStructure
663+ ) ;
664+ }
665+
666+ internal const String JSON_ROW_INDENTATION_TAG = " " ;
667+ private static readonly String JSON_PART_INDENTATION_TAG = JSON_ROW_INDENTATION_TAG + JSON_ROW_INDENTATION_TAG ;
668+ private static readonly String JSON_ROW_BEFORE_TAG = StringInvariant . NEW_LINE
669+ + JSON_ROW_INDENTATION_TAG
670+ + StringInvariant . LEFT_CURLY_BRACKET
671+ + StringInvariant . NEW_LINE
672+ ;
673+ private static readonly String JSON_ROW_AFTER_TAG = StringInvariant . NEW_LINE
674+ + JSON_ROW_INDENTATION_TAG
675+ + StringInvariant . RIGHT_CURLY_BRACKET
676+ ;
677+ private static readonly String JSON_PART_DELIMITER = StringInvariant . COMMA + StringInvariant . NEW_LINE ;
678+ internal static void stringBuilderPartsAppendJsonRow ( StringBuilder stringBuilder , params String [ ] partsToAppend ) {
679+ stringBuilderPartsAppendDelimitedRow (
680+ JSON_PART_INDENTATION_TAG
681+ , StringInvariant . EMPTY
682+ , JSON_PART_DELIMITER
683+ , JSON_ROW_BEFORE_TAG
684+ , JSON_ROW_AFTER_TAG
685+ , false
686+ , false
687+ , true
688+ , stringBuilder
689+ , partsToAppend
690+ ) ;
691+ }
692+ internal static String cleanNewLineAtTheEnd ( String str ) {
693+ int length = str . Length ;
694+
695+ if ( length == 0 )
696+ return str ;
697+
698+ if ( str . EndsWith ( StringInvariant . NEW_LINE ) )
699+ return str . Substring ( 0 , length - StringInvariant . NEW_LINE . Length ) ;
700+
701+ return str ;
464702 }
465703 /**
466704 * Converts integer number to hex string (plain text)
@@ -540,5 +778,17 @@ public static String numberToAsciiString(long number) {
540778 public static String numberToAsciiString ( double number ) {
541779 return hexString2AsciiString ( numberToHexString ( number ) ) ;
542780 }
781+ public static int countOccurrences ( String str , String toFind ) {
782+ if ( str == null || toFind == null ) return - 1 ;
783+ int strLen = str . Length ;
784+ int toFindLen = toFind . Length ;
785+ if ( strLen == 0 || toFindLen == 0 || toFindLen > strLen ) return 0 ;
786+ return ( strLen - str . Replace ( toFind , StringInvariant . EMPTY ) . Length ) / toFindLen ;
787+ }
788+ public static int countLines ( String text ) {
789+ if ( text == null ) return - 1 ;
790+ if ( text . Length == 0 ) return 0 ;
791+ return countOccurrences ( text , StringInvariant . NEW_LINE ) + 1 ;
792+ }
543793 }
544794}
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