StringBuilder Go Reference Documentation

StringBuilder

Current Version: 9.5.0.79

A simple class for building strings. (Represents a mutable string of characters.)

Note: This class was introduced in Chilkat v9.5.0.58.

Object Creation

sb := chilkat.NewStringBuilder()
...
sb.DisposeStringBuilder()

Properties

IntValue
func (sb *StringBuilder) IntValue() int
func (sb *StringBuilder) SetIntValue(v int)
Introduced in version 9.5.0.58

Returns the content of the string converted to an integer.

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IsBase64
func (sb *StringBuilder) IsBase64() bool
Introduced in version 9.5.0.76

Returns true if the content contains only those characters allowed in the base64 encoding. A base64 string is composed of characters 'A'..'Z', 'a'..'z', '0'..'9', '+', '/' and it is often padded at the end with up to two '=', to make the length a multiple of 4. Whitespace is ignored.

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LastMethodSuccess
func (sb *StringBuilder) LastMethodSuccess() bool
func (sb *StringBuilder) SetLastMethodSuccess(b bool)

Indicate whether the last method call succeeded or failed. A value of true indicates success, a value of false indicates failure. This property is automatically set for method calls. It is not modified by property accesses. The property is automatically set to indicate success for the following types of method calls:

  • Any method that returns a string.
  • Any method returning a Chilkat object, binary bytes, or a date/time.
  • Any method returning a standard boolean status value where success = true and failure = false.
  • Any method returning an integer where failure is defined by a return value less than zero.

Note: Methods that do not fit the above requirements will always set this property equal to true. For example, a method that returns no value (such as a "void" in C++) will technically always succeed.

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Length
func (sb *StringBuilder) Length() int
Introduced in version 9.5.0.58

The number of characters of the string contained within this instance.

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Methods

Append
func (sb *StringBuilder) Append(value string) bool
Introduced in version 9.5.0.58

Appends a copy of the specified string to this instance.

Returns true for success, false for failure.

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AppendBd
func (sb *StringBuilder) AppendBd(binData *BinData, charset string, offset int, numBytes int) bool
Introduced in version 9.5.0.64

Appends the contents of binData. The charset specifies the character encoding of the bytes contained in binData. The charset can be any of the supported encodings listed at Chilkat Supported Character Encodings. To append the entire contents of binData, set offset and numBytes equal to zero. To append a range of binData, set the offset and numBytes to specify the range.

Returns true for success, false for failure.

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AppendEncoded
func (sb *StringBuilder) AppendEncoded(binaryData []byte, encoding string) bool
Introduced in version 9.5.0.58

Appends binary data using the encoding specified by encoding, such as "base64", "hex", etc.

Returns true for success, false for failure.

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AppendInt
func (sb *StringBuilder) AppendInt(value int) bool
Introduced in version 9.5.0.58

Appends the string representation of a specified 32-bit signed integer to this instance.

Returns true for success, false for failure.

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AppendInt64
func (sb *StringBuilder) AppendInt64(value int64) bool
Introduced in version 9.5.0.58

Appends the string representation of a specified 64-bit signed integer to this instance.

Returns true for success, false for failure.

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AppendLine
func (sb *StringBuilder) AppendLine(value string, crlf bool) bool
Introduced in version 9.5.0.65

Appends the value followed by a CRLF or LF to the end of the curent StringBuilder object. If crlf is true, then a CRLF line ending is used. Otherwise a LF line ending is used.

Returns true for success, false for failure.

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AppendSb
func (sb *StringBuilder) AppendSb(sb *StringBuilder) bool
Introduced in version 9.5.0.62

Appends the contents of another StringBuilder to this instance.

Returns true for success, false for failure.

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Clear
func (sb *StringBuilder) Clear()
Introduced in version 9.5.0.58

Removes all characters from the current StringBuilder instance.

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Contains
func (sb *StringBuilder) Contains(str string, caseSensitive bool) bool
Introduced in version 9.5.0.58

Returns true if the str is contained within this object. For case sensitive matching, set caseSensitive equal to true. For case-insensitive, set caseSensitive equal to false.

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ContainsWord
func (sb *StringBuilder) ContainsWord(word string, caseSensitive bool) bool
Introduced in version 9.5.0.69

Returns true if the word is contained within this object, but only if it is a whole word. This method is limited to finding whole words in strings that only contains characters in the Latin1 charset (i.e. iso-8859-1 or Windows-1252). A whole word can only contain alphanumeric chars where the alpha chars are restricted to those of the Latin1 alpha chars. (The underscore character is also considered part of a word.)

For case sensitive matching, set caseSensitive equal to true. For case-insensitive, set caseSensitive equal to false.

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ContentsEqual
func (sb *StringBuilder) ContentsEqual(str string, caseSensitive bool) bool
Introduced in version 9.5.0.62

Returns true if the contents of this object equals the str. Returns false if unequal. For case insensitive equality, set caseSensitive equal to false.

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ContentsEqualSb
func (sb *StringBuilder) ContentsEqualSb(sb *StringBuilder, caseSensitive bool) bool
Introduced in version 9.5.0.62

Returns true if the contents of this object equals the sb. Returns false if unequal. For case insensitive equality, set caseSensitive equal to false.

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Decode
func (sb *StringBuilder) Decode(encoding string, charset string) bool
Introduced in version 9.5.0.62

Decodes and replaces the contents with the decoded string. The encoding can be set to any of the following strings: "base64", "hex", "quoted-printable" (or "qp"), "url", "base32", "Q", "B", "url_rc1738", "url_rfc2396", "url_rfc3986", "url_oauth", "uu", "modBase64", or "html" (for HTML entity encoding). The full up-to-date list of supported binary encodings is available at the link entitled "Supported Binary Encodings" below.

Note: This method can only be called if the encoded content decodes to a string. The charset indicates the charset to be used in intepreting the decoded bytes. For example, the charset can be "utf-8", "utf-16", "iso-8859-1", "shift_JIS", etc.

Returns true for success, false for failure.

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Encode
func (sb *StringBuilder) Encode(encoding string, charset string) bool
Introduced in version 9.5.0.62

Encodes to base64, hex, quoted-printable, URL encoding, etc. The encoding can be set to any of the following strings: "base64", "hex", "quoted-printable" (or "qp"), "url", "base32", "Q", "B", "url_rc1738", "url_rfc2396", "url_rfc3986", "url_oauth", "uu", "modBase64", or "html" (for HTML entity encoding). The full up-to-date list of supported binary encodings is available at the link entitled "Supported Binary Encodings" below.

Returns true for success, false for failure.

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EndsWith
func (sb *StringBuilder) EndsWith(substr string, caseSensitive bool) bool
Introduced in version 9.5.0.62

Returns true if the string ends with substr. Otherwise returns false. The comparison is case sensitive if caseSensitive is true, and case insensitive if caseSensitive is false.

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EntityDecode
func (sb *StringBuilder) EntityDecode() bool
Introduced in version 9.5.0.62

Decodes HTML entities. See HTML entities for more information about HTML entities.

Returns true for success, false for failure.

More Information and Examples
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GetAfterBetween
func (sb *StringBuilder) GetAfterBetween(searchAfter string, beginMark string, endMark string) *string
Introduced in version 9.5.0.62

Begin searching after the 1st occurrence of searchAfter is found, and then return the substring found between the next occurrence of beginMark and the next occurrence of endMark.

Returns nil on failure

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GetAfterFinal
func (sb *StringBuilder) GetAfterFinal(marker string, removeFlag bool) *string
Introduced in version 9.5.0.77

Returns the substring found after the final occurrence of marker. If removeFlag is true, the marker and the content that follows is removed from this content.

If the marker is not present, then the entire string is returned. In this case, if removeFlag is true, this object is also cleared.

Returns nil on failure

More Information and Examples
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GetAsString
func (sb *StringBuilder) GetAsString() *string
Introduced in version 9.5.0.58

Returns the contents as a string.

Returns nil on failure

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GetBefore
func (sb *StringBuilder) GetBefore(marker string, removeFlag bool) *string
Introduced in version 9.5.0.77

Returns the substring found before the 1st occurrence of marker. If removeFlag is true, the content up to and including the marker is removed from this object's contents.

If the marker is not present, then the entire string is returned. In this case, if removeFlag is true, this object is also cleared.

Returns nil on failure

More Information and Examples
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GetBetween
func (sb *StringBuilder) GetBetween(beginMark string, endMark string) *string
Introduced in version 9.5.0.62

Returns the substring found between the 1st occurrence of beginMark and the next occurrence of endMark.

Returns nil on failure

More Information and Examples
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GetDecoded
func (sb *StringBuilder) GetDecoded(encoding string) []byte
Introduced in version 9.5.0.62

Decodes and returns the decoded bytes. The encoding can be set to any of the following strings: "base64", "hex", "quoted-printable" (or "qp"), "url", "base32", "Q", "B", "url_rc1738", "url_rfc2396", "url_rfc3986", "url_oauth", "uu", "modBase64", or "html" (for HTML entity encoding). The full up-to-date list of supported binary encodings is available at the link entitled "Supported Binary Encodings" below.

Returns nil on failure

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GetEncoded
func (sb *StringBuilder) GetEncoded(encoding string, charset string) *string
Introduced in version 9.5.0.62

Returns the string contents encoded in an encoding such as base64, hex, quoted-printable, or URL-encoding. The encoding can be set to any of the following strings: "base64", "hex", "quoted-printable" (or "qp"), "url", "base32", "Q", "B", "url_rc1738", "url_rfc2396", "url_rfc3986", "url_oauth", "uu", "modBase64", or "html" (for HTML entity encoding). The full up-to-date list of supported binary encodings is available at the link entitled "Supported Binary Encodings" below.

Note: The Encode method modifies the content of this object. The GetEncoded method leaves this object's content unmodified.

Returns nil on failure

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GetNth
func (sb *StringBuilder) GetNth(index int, delimiterChar string, exceptDoubleQuoted bool, exceptEscaped bool) *string
Introduced in version 9.5.0.62

Returns the Nth substring in string that is a list delimted by delimiterChar. The first substring is at index 0. If exceptDoubleQuoted is true, then the delimiter char found between double quotes is not treated as a delimiter. If exceptEscaped is true, then an escaped (with a backslash) delimiter char is not treated as a delimiter.

Returns nil on failure

More Information and Examples
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LastNLines
func (sb *StringBuilder) LastNLines(numLines int, bCrlf bool) *string
Introduced in version 9.5.0.62

Returns the last N lines of the text. If fewer than numLines lines exists, then all of the text is returned. If bCrlf is true, then the line endings of the returned string are converted to CRLF, otherwise the line endings are converted to LF-only.

Returns nil on failure

More Information and Examples
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LoadFile
func (sb *StringBuilder) LoadFile(path string, charset string) bool
Introduced in version 9.5.0.62

Loads the contents of a file.

Returns true for success, false for failure.

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Prepend
func (sb *StringBuilder) Prepend(value string) bool
Introduced in version 9.5.0.61

Prepends a copy of the specified string to this instance.

Returns true for success, false for failure.

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PunyDecode
func (sb *StringBuilder) PunyDecode() bool
Introduced in version 9.5.0.71

In-place decodes the string from punycode.

Returns true for success, false for failure.

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PunyEncode
func (sb *StringBuilder) PunyEncode() bool
Introduced in version 9.5.0.71

In-place encodes the string to punycode.

Returns true for success, false for failure.

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RemoveAfterFinal
func (sb *StringBuilder) RemoveAfterFinal(marker string) bool
Introduced in version 9.5.0.77

Removes the substring found after the final occurrence of the marker. Also removes the marker. Returns true if the marker was found and content was removed. Otherwise returns false.

Returns true for success, false for failure.

More Information and Examples
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RemoveBefore
func (sb *StringBuilder) RemoveBefore(marker string) bool
Introduced in version 9.5.0.77

Removes the substring found before the 1st occurrence of the marker. Also removes the marker. Returns true if the marker was found and content was removed. Otherwise returns false.

Returns true for success, false for failure.

More Information and Examples
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Replace
func (sb *StringBuilder) Replace(value string, replacement string) int
Introduced in version 9.5.0.58

Replaces all occurrences of a specified string in this instance with another specified string. Returns the number of replacements.

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ReplaceAfterFinal
func (sb *StringBuilder) ReplaceAfterFinal(marker string, replacement string) bool
Introduced in version 9.5.0.73

Replaces the content found after the final occurrence of marker with replacement.

Returns true for success, false for failure.

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ReplaceAllBetween
func (sb *StringBuilder) ReplaceAllBetween(beginMark string, endMark string, replacement string, replaceMarks bool) bool
Introduced in version 9.5.0.64

Replaces the first occurrence of ALL the content found between beginMark and endMark with replacement. The beginMark and endMark are included in what is replaced if replaceMarks is true.

Returns true for success, false for failure.

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ReplaceBetween
func (sb *StringBuilder) ReplaceBetween(beginMark string, endMark string, value string, replacement string) int
Introduced in version 9.5.0.62

Replaces all occurrences of value with replacement, but only where value is found between beginMark and endMark. Returns the number of replacements made.

More Information and Examples
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ReplaceFirst
func (sb *StringBuilder) ReplaceFirst(value string, replacement string) bool
Introduced in version 9.5.0.77

Replaces the first occurrence of a specified string in this instance with another string. Returns true if the value was found and replaced. Otherwise returns false.

Returns true for success, false for failure.

More Information and Examples
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ReplaceI
func (sb *StringBuilder) ReplaceI(value string, replacement int) int
Introduced in version 9.5.0.67

Replaces all occurrences of value with the decimal integer replacement. Returns the number of replacements.

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ReplaceWord
func (sb *StringBuilder) ReplaceWord(value string, replacement string) int
Introduced in version 9.5.0.62

Replaces all word occurrences of a specified string in this instance with another specified string. Returns the number of replacements made.

Important: This method is limited to replacing whole words in strings that only contains characters in the Latin1 charset (i.e. iso-8859-1 or Windows-1252). A whole word can only contain alphanumeric chars where the alpha chars are restricted to those of the Latin1 alpha chars. (The underscore character is also considered part of a word.)

More Information and Examples
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SecureClear
func (sb *StringBuilder) SecureClear()
Introduced in version 9.5.0.67

Removes all characters from the current StringBuilder instance, and write zero bytes to the allocated memory before deallocating.

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SetNth
func (sb *StringBuilder) SetNth(index int, value string, delimiterChar string, exceptDoubleQuoted bool, exceptEscaped bool) bool
Introduced in version 9.5.0.62

Sets the Nth substring in string in a list delimted by delimiterChar. The first substring is at index 0. If exceptDoubleQuoted is true, then the delimiter char found between double quotes is not treated as a delimiter. If exceptEscaped is true, then an escaped (with a backslash) delimiter char is not treated as a delimiter.

Returns true for success, false for failure.

More Information and Examples
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SetString
func (sb *StringBuilder) SetString(value string) bool
Introduced in version 9.5.0.61

Sets this instance to a copy of the specified string.

Returns true for success, false for failure.

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StartsWith
func (sb *StringBuilder) StartsWith(substr string, caseSensitive bool) bool
Introduced in version 9.5.0.62

Returns true if the string starts with substr. Otherwise returns false. The comparison is case sensitive if caseSensitive is true, and case insensitive if caseSensitive is false.

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ToCRLF
func (sb *StringBuilder) ToCRLF() bool
Introduced in version 9.5.0.62

Converts line endings to CRLF (Windows) format.

Returns true for success, false for failure.

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ToLF
func (sb *StringBuilder) ToLF() bool
Introduced in version 9.5.0.62

Converts line endings to LF-only (UNIX) format.

Returns true for success, false for failure.

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ToLowercase
func (sb *StringBuilder) ToLowercase() bool
Introduced in version 9.5.0.62

Converts the contents to lowercase.

Returns true for success, false for failure.

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ToUppercase
func (sb *StringBuilder) ToUppercase() bool
Introduced in version 9.5.0.62

Converts the contents to uppercase.

Returns true for success, false for failure.

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Trim
func (sb *StringBuilder) Trim() bool
Introduced in version 9.5.0.62

Trims whitespace from both ends of the string.

Returns true for success, false for failure.

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TrimInsideSpaces
func (sb *StringBuilder) TrimInsideSpaces() bool
Introduced in version 9.5.0.62

Replaces all tabs, CR's, and LF's, with SPACE chars, and removes extra SPACE's so there are no occurances of more than one SPACE char in a row.

Returns true for success, false for failure.

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WriteFile
func (sb *StringBuilder) WriteFile(path string, charset string, emitBom bool) bool
Introduced in version 9.5.0.62

Writes the contents to a file. If emitBom is true, then the BOM (also known as a preamble), is emitted for charsets that define a BOM (such as utf-8, utf-16, utf-32, etc.)

Returns true for success, false for failure.

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WriteFileIfModified
func (sb *StringBuilder) WriteFileIfModified(path string, charset string, emitBom bool) bool
Introduced in version 9.5.0.73

Writes the contents to a file, but only if it is a new file or if the contents are different than the existing file. If emitBom is true, then the BOM (also known as a preamble), is emitted for charsets that define a BOM (such as utf-8, utf-16, utf-32, etc.)

Returns true for success, false for failure.

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