Package com.vladsch.flexmark.util.sequence

Class LineAppendableImpl

    • Field Detail

      • passThrough

        private final boolean passThrough

      • preFormattedNesting

        private int preFormattedNesting

      • preFormattedFirstLine

        private int preFormattedFirstLine

      • preFormattedFirstLineOffset

        private int preFormattedFirstLineOffset

      • preFormattedLastLine

        private int preFormattedLastLine

      • preFormattedLastLineOffset

        private int preFormattedLastLineOffset

      • lines

        final java.util.ArrayList<LineInfo> lines

      • prefix

        private java.lang.CharSequence prefix

      • prefixAfterEol

        private java.lang.CharSequence prefixAfterEol

      • indentPrefix

        private java.lang.CharSequence indentPrefix

      • prefixStack

        private final java.util.Stack<java.lang.CharSequence> prefixStack

      • indentPrefixStack

        private final java.util.Stack<java.lang.Boolean> indentPrefixStack

      • allWhitespace

        private boolean allWhitespace

      • lastWasWhitespace

        private boolean lastWasWhitespace

      • eolOnFirstText

        private int eolOnFirstText

      • indentsOnFirstEol

        private final java.util.ArrayList<java.lang.Runnable> indentsOnFirstEol

      • optionStack

        private final java.util.Stack<java.lang.Integer> optionStack

      • modificationCount

        int modificationCount

    • Constructor Detail

      • LineAppendableImpl

        public LineAppendableImpl​(int formatOptions)

      • LineAppendableImpl

        public LineAppendableImpl​(@Nullable
                          @Nullable java.lang.Appendable builder,
                          int formatOptions)

    • Method Detail

      • setOptions

        @NotNull
public @NotNull LineAppendable setOptions​(int flags)
        Description copied from interface: LineAppendable
        Set options on processing text
        Specified by:
        setOptions in interface LineAppendable
        Parameters:
        flags - option flags
        Returns:
        this

      • any

        private boolean any​(int flags)

      • isConvertingTabs

        private boolean isConvertingTabs()

      • isTrimTrailingWhitespace

        private boolean isTrimTrailingWhitespace()

      • isTrimLeadingWhitespace

        private boolean isTrimLeadingWhitespace()

      • isCollapseWhitespace

        private boolean isCollapseWhitespace()

      • getIndentPrefix

        @NotNull
public @NotNull BasedSequence getIndentPrefix()
        Description copied from interface: LineAppendable
        Get prefix appended after a new line character for every indent level
        Specified by:
        getIndentPrefix in interface LineAppendable
        Returns:
        char sequence of the current indent prefix used for each indent level

      • setIndentPrefix

        @NotNull
public @NotNull LineAppendable setIndentPrefix​(@Nullable
                                               @Nullable java.lang.CharSequence prefix)
        Description copied from interface: LineAppendable
        Set prefix to append after a new line character for every indent level
        Specified by:
        setIndentPrefix in interface LineAppendable
        Parameters:
        prefix - prefix characters for new lines appended after this is set
        Returns:
        this

      • getPrefix

        @NotNull
public @NotNull BasedSequence getPrefix()
        Description copied from interface: LineAppendable
        Get prefix being applied to all lines, even in pre-formatted sections This is the prefix that will be set after EOL
        Specified by:
        getPrefix in interface LineAppendable
        Returns:
        char sequence of the current prefix

      • addPrefix

        @NotNull
public @NotNull LineAppendable addPrefix​(@NotNull
                                         @NotNull java.lang.CharSequence prefix,
                                         boolean afterEol)
        Description copied from interface: LineAppendable
        Add to prefix appended after a new line character for every line and after a new line in pre-formatted sections

        This appends the sequence to current prefix

        Specified by:
        addPrefix in interface LineAppendable
        Parameters:
        prefix - prefix characters to add to current prefix for new lines appended after this is set
        afterEol - if true prefix will take effect after EOL
        Returns:
        this

      • getAfterEolPrefixDelta

        public int getAfterEolPrefixDelta()
        Description copied from interface: LineAppendable
        Get pending prefix after EOL
        Specified by:
        getAfterEolPrefixDelta in interface LineAppendable
        Returns:
        change in prefix length after next eol

      • setPrefix

        @NotNull
public @NotNull LineAppendable setPrefix​(@Nullable
                                         @Nullable java.lang.CharSequence prefix,
                                         boolean afterEol)
        Description copied from interface: LineAppendable
        Set prefix appended after a new line character for every line and after a new line in pre-formatted sections

        This appends the sequence to current prefix

        Specified by:
        setPrefix in interface LineAppendable
        Parameters:
        prefix - prefix characters to add to current prefix for new lines appended after this is set
        afterEol - if true prefix will take effect after EOL
        Returns:
        this

      • indent

        @NotNull
public @NotNull LineAppendable indent()
        Description copied from interface: LineAppendable
        Increase the indent level, will terminate the current line if there is unterminated text

        NOTE: this is equivalent to pushPrefix(), addPrefix(getIndentPrefix()) but adds a flag to validate that LineAppendable.unIndent() is called only on prefixes added by this method

        Specified by:
        indent in interface LineAppendable
        Returns:
        this

      • rawIndent

        private void rawIndent()

      • rawUnIndent

        private void rawUnIndent()

      • unIndent

        @NotNull
public @NotNull LineAppendable unIndent()
        Description copied from interface: LineAppendable
        Decrease the indent level, min level is 0, will terminate the current line if there is unterminated text

        NOTE: this is equivalent to popPrefix() but with validation that it is called only on prefixes added by LineAppendable.indent()

        Specified by:
        unIndent in interface LineAppendable
        Returns:
        this

      • popPrefix

        @NotNull
public @NotNull LineAppendable popPrefix​(boolean afterEol)
        Description copied from interface: LineAppendable
        Pop a prefix from the stack and set the current prefix
        Specified by:
        popPrefix in interface LineAppendable
        Parameters:
        afterEol - if true prefix will take effect after EOL
        Returns:
        this

      • getLastLineInfo

        @NotNull
@NotNull LineInfo getLastLineInfo()

      • isTrailingBlankLine

        private boolean isTrailingBlankLine()

      • lastNonBlankLine

        int lastNonBlankLine​(int endLine)

      • getTrailingBlankLines

        public int getTrailingBlankLines​(int endLine)
        Description copied from interface: LineAppendable
        Get trailing blank line count ending on given line
        Specified by:
        getTrailingBlankLines in interface LineAppendable
        Parameters:
        endLine - end line
        Returns:
        number of trailing blank lines

      • endsWithEOL

        public boolean endsWithEOL()
        Specified by:
        endsWithEOL in interface LineAppendable
        Returns:
        true if not empty and have no unterminated lines

      • getLineRange

        private LineInfo getLineRange​(int start,
                              int end,
                              java.lang.CharSequence prefix)

      • resetBuilder

        private void resetBuilder()

      • addLineRange

        private void addLineRange​(int start,
                          int end,
                          java.lang.CharSequence prefix)

      • appendEol

        private void appendEol​(@NotNull
                       @NotNull java.lang.CharSequence eol)

      • rawIndentsOnFirstEol

        private void rawIndentsOnFirstEol()

      • appendEol

        private void appendEol​(int count)

      • isPrefixed

        private boolean isPrefixed​(int currentLine)

      • getRangePrefixAfterEol

        private Pair<Range,​java.lang.CharSequence> getRangePrefixAfterEol()
        Returns text range if EOL was appended

        NOTE: if range == Range.NULL then no line would be added

        Returns:
        pair of line text range if EOL was added and prefix

      • offsetAfterEol

        private int offsetAfterEol()
        Returns text offset before EOL if EOL was issued
        Returns:
        would be offset after adding EOL - 1

      • doEolOnFirstTest

        private void doEolOnFirstTest()

      • appendImpl

        private void appendImpl​(java.lang.CharSequence s,
                        int index)

      • appendImpl

        private void appendImpl​(java.lang.CharSequence csq,
                        int start,
                        int end)

      • append

        @NotNull
public @NotNull LineAppendable append​(@NotNull
                                      @NotNull java.lang.CharSequence csq)
        Specified by:
        append in interface java.lang.Appendable
        Specified by:
        append in interface LineAppendable

      • append

        @NotNull
public @NotNull LineAppendable append​(@NotNull
                                      @NotNull java.lang.CharSequence csq,
                                      int start,
                                      int end)
        Specified by:
        append in interface java.lang.Appendable
        Specified by:
        append in interface LineAppendable

      • append

        @NotNull
public @NotNull LineAppendable append​(char c)
        Specified by:
        append in interface java.lang.Appendable
        Specified by:
        append in interface LineAppendable

      • repeat

        @NotNull
public @NotNull LineAppendable repeat​(@NotNull
                                      @NotNull java.lang.CharSequence csq,
                                      int count)

      • repeat

        @NotNull
public @NotNull LineAppendable repeat​(@NotNull
                                      @NotNull java.lang.CharSequence csq,
                                      int start,
                                      int end,
                                      int count)

      • line

        @NotNull
public @NotNull LineAppendable line()
        Description copied from interface: LineAppendable
        Add a new line if there was any unterminated text appended or if this is a preformatted region
        Specified by:
        line in interface LineAppendable
        Returns:
        this

      • lineWithTrailingSpaces

        @NotNull
public @NotNull LineAppendable lineWithTrailingSpaces​(int count)
        Description copied from interface: LineAppendable
        Add a new line, keep trailing spaces if there was any unterminated text appended

        NOTE: only applies in preformatted region or if the line is not empty

        Specified by:
        lineWithTrailingSpaces in interface LineAppendable
        Parameters:
        count - number of trailing spaces to add
        Returns:
        this

      • blankLineIf

        @NotNull
public @NotNull LineAppendable blankLineIf​(boolean predicate)
        Description copied from interface: LineAppendable
        Add a blank line, if predicate is true and there isn't already blank lines appended.
        Specified by:
        blankLineIf in interface LineAppendable
        Parameters:
        predicate - when true append blank line
        Returns:
        this

      • blankLine

        @NotNull
public @NotNull LineAppendable blankLine​(int count)
        Description copied from interface: LineAppendable
        Add a blank lines, if there isn't already given number of blank lines appended. Will append only enough blank lines to increase it to given level. If more are already in the wings then nothing is done.
        Specified by:
        blankLine in interface LineAppendable
        Parameters:
        count - number of blank lines to append
        Returns:
        this

      • removeIndentOnFirstEOL

        @NotNull
public @NotNull LineAppendable removeIndentOnFirstEOL​(@NotNull
                                                      @NotNull java.lang.Runnable listener)
        Description copied from interface: LineAppendable
        Remove runnable, has no effect if EOL was already appended and runnable was run
        Specified by:
        removeIndentOnFirstEOL in interface LineAppendable
        Parameters:
        listener - runnable added with addIndentOnFirstEOL
        Returns:
        this

      • addIndentOnFirstEOL

        @NotNull
public @NotNull LineAppendable addIndentOnFirstEOL​(@NotNull
                                                   @NotNull java.lang.Runnable listener)
        Description copied from interface: LineAppendable
        Add an indent on first EOL appended and run runnable
        Specified by:
        addIndentOnFirstEOL in interface LineAppendable
        Parameters:
        listener - runnable to run if adding indent on first EOL
        Returns:
        this

      • getLineCount

        public int getLineCount()
        Description copied from interface: LineAppendable
        Get the number of lines appended, not including any unterminated ones
        Specified by:
        getLineCount in interface LineAppendable
        Returns:
        number of full lines appended

      • getLineCountWithPending

        public int getLineCountWithPending()
        Description copied from interface: LineAppendable
        Get the number of lines appended, including any unterminated ones

        NOTE: if there is an unterminated line it will be available as the last line, without being terminated explicitly

        Specified by:
        getLineCountWithPending in interface LineAppendable
        Returns:
        number of lines appended

      • column

        public int column()
        Description copied from interface: LineAppendable
        Get column offset after last append
        Specified by:
        column in interface LineAppendable
        Returns:
        column offset after last append

      • getLineInfo

        @NotNull
public @NotNull LineInfo getLineInfo​(int lineIndex)
        Description copied from interface: LineAppendable
        Get Line information at given line index

        NOTE: if there is an unterminated line it will be available as the last line, without being terminated explicitly

        Specified by:
        getLineInfo in interface LineAppendable
        Parameters:
        lineIndex - line index for the info to get
        Returns:
        line info

      • getLine

        @NotNull
public @NotNull BasedSequence getLine​(int lineIndex)
        Description copied from interface: LineAppendable
        Get Line at given line index

        NOTE: if there is an unterminated line it will be available as the last line, without being terminated explicitly

        Specified by:
        getLine in interface LineAppendable
        Parameters:
        lineIndex - line index
        Returns:
        line char sequence

      • offset

        public int offset()
        Description copied from interface: LineAppendable
        Get text offset of all output lines, excluding any text for the last line being accumulated
        Specified by:
        offset in interface LineAppendable
        Returns:
        offset of text as would be returned for all

      • isPendingSpace

        public boolean isPendingSpace()
        Description copied from interface: LineAppendable
        Test if trailing text ends in space or tab
        Specified by:
        isPendingSpace in interface LineAppendable
        Returns:
        true if ending in space or tab

      • getPendingSpace

        public int getPendingSpace()
        Description copied from interface: LineAppendable
        Get number of spaces at end of pending text
        Specified by:
        getPendingSpace in interface LineAppendable
        Returns:
        number of eols at end of text

      • getPendingEOL

        public int getPendingEOL()
        Description copied from interface: LineAppendable
        Get number of EOLs at end of appendable, this is actually number of tail blank lines
        Specified by:
        getPendingEOL in interface LineAppendable
        Returns:
        number of eols at end of text

      • isPreFormatted

        public boolean isPreFormatted()
        Specified by:
        isPreFormatted in interface LineAppendable
        Returns:
        true if in pre-formatted region

      • openPreFormatted

        @NotNull
public @NotNull LineAppendable openPreFormatted​(boolean addPrefixToFirstLine)
        Description copied from interface: LineAppendable
        Open preformatted section and suspend content modification
        Specified by:
        openPreFormatted in interface LineAppendable
        Parameters:
        addPrefixToFirstLine - if true will add the current prefix to first line
        Returns:
        this

      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Object

      • toString

        @NotNull
public @NotNull java.lang.String toString​(int maxBlankLines,
                                          int maxTrailingBlankLines,
                                          boolean withPrefixes)
        Description copied from interface: LineAppendable
        get the resulting text for all lines
        Specified by:
        toString in interface LineAppendable
        Parameters:
        maxBlankLines - maximum blank lines to allow in the text
        maxTrailingBlankLines - maximum trailing blank lines
        withPrefixes - true if to include prefixes
        Returns:
        resulting text

      • toSequence

        @NotNull
public @NotNull java.lang.CharSequence toSequence​(int maxBlankLines,
                                                  int maxTrailingBlankLines,
                                                  boolean withPrefixes)
        Description copied from interface: LineAppendable
        get the resulting text for all lines
        Specified by:
        toSequence in interface LineAppendable
        Parameters:
        maxBlankLines - maximum blank lines to allow in the text
        maxTrailingBlankLines - maximum trailing blank lines
        withPrefixes - true if to include prefixes
        Returns:
        resulting text

      • appendTo

        public <T extends java.lang.Appendable> T appendTo​(@NotNull
                                                   T out,
                                                   boolean withPrefixes,
                                                   int maxBlankLines,
                                                   int maxTrailingBlankLines,
                                                   int startLine,
                                                   int endLine)
                                            throws java.io.IOException
        Description copied from interface: LineAppendable
        append lines to appendable with given maximum trailing blank lines and given prefix to add to all lines

        NOTE:

        Specified by:
        appendTo in interface LineAppendable
        Type Parameters:
        T - type of out
        Parameters:
        out - appendable to output the resulting lines
        withPrefixes - true if to include prefixes
        maxBlankLines - maximum blank lines to allow in the body,
        maxTrailingBlankLines - maximum trailing blank lines at the end, if <maxBlankLines then maxBlankLines will be used, if -1 then no trailing EOL will be added
        startLine - line from which to start output
        endLine - line at which to stop output
        Returns:
        out
        Throws:
        java.io.IOException - if thrown by appendable

      • appendToNoLine

        public <T extends java.lang.Appendable> T appendToNoLine​(@NotNull
                                                         T out,
                                                         boolean withPrefixes,
                                                         int maxBlankLines,
                                                         int maxTrailingBlankLines,
                                                         int startLine,
                                                         int endLine)
                                                  throws java.io.IOException
        Throws:
        java.io.IOException

      • append

        @NotNull
public @NotNull LineAppendable append​(@NotNull
                                      @NotNull LineAppendable lineAppendable,
                                      int startLine,
                                      int endLine,
                                      boolean withPrefixes)
        Description copied from interface: LineAppendable
        Append lines from another line formatting appendable.

        NOTE: does not apply formatting options. Instead, appends already formatted lines as is

        If there is an accumulating line, it will be terminated by an EOL before appending lines

        Specified by:
        append in interface LineAppendable
        Parameters:
        lineAppendable - lines to append, any unterminated lines will be terminated by a LineAppendable.line() invocation.
        startLine - start line to append
        endLine - end line to append, endLine is excluded.
        withPrefixes - true if to include prefixes from the lineAppendable.
        Returns:
        this

      • removeLinesRaw

        private int removeLinesRaw​(int startLine,
                           int endLine)
        Remove lines and return index from which line info must be recomputed
        Parameters:
        startLine - start line index to remove
        endLine - end line index to remove
        Returns:
        index from which line info must be recomputed

      • recomputeLineInfo

        void recomputeLineInfo​(int startLine)

      • removeExtraBlankLines

        public LineAppendable removeExtraBlankLines​(int maxBlankLines,
                                            int maxTrailingBlankLines,
                                            int startLine,
                                            int endLine)
        Description copied from interface: LineAppendable
        Normalize the appendable by removing extra blank lines in the body or at the end of given line range
        Specified by:
        removeExtraBlankLines in interface LineAppendable
        Parameters:
        maxBlankLines - maximum blank lines to allow in the body
        maxTrailingBlankLines - maximum trailing blank lines ending on endLine, if <maxBlankLines then maxBlankLines will be used
        startLine - line from which to start output
        endLine - line at which to stop output
        Returns:
        this

      • setPrefixLength

        public void setPrefixLength​(int lineIndex,
                            int prefixLength)
        Description copied from interface: LineAppendable
        Change prefix length for a given line without changing the line content
        Specified by:
        setPrefixLength in interface LineAppendable
        Parameters:
        lineIndex - index of the line
        prefixLength - new prefix length

      • createLineInfo

        private LineInfo createLineInfo​(int lineIndex,
                                @NotNull
                                @NotNull java.lang.CharSequence prefix,
                                @NotNull
                                @NotNull java.lang.CharSequence content)

      • setLine

        public void setLine​(int lineIndex,
                    @NotNull
                    @NotNull java.lang.CharSequence prefix,
                    @NotNull
                    @NotNull java.lang.CharSequence content)
        Description copied from interface: LineAppendable
        Set content and prefix for a line
        Specified by:
        setLine in interface LineAppendable
        Parameters:
        lineIndex - index of the line
        prefix - prefix of the line
        content - content text of the line

      • insertLine

        public void insertLine​(int lineIndex,
                       @NotNull
                       @NotNull java.lang.CharSequence prefix,
                       @NotNull
                       @NotNull java.lang.CharSequence content)
        Description copied from interface: LineAppendable
        Insert a line at the index with given content and prefix for a line
        Specified by:
        insertLine in interface LineAppendable
        Parameters:
        lineIndex - index of the line
        prefix - prefix of the line
        content - content text of the line

      • tailBlankLinesToRemove

        int tailBlankLinesToRemove​(int endLine,
                           int maxTrailingBlankLines)

      • getIndexedLineProxy

        @NotNull
@NotNull LineAppendableImpl.IndexedLineProxy getIndexedLineProxy​(int maxTrailingBlankLines,
                                                                 int startLine,
                                                                 int endLine,
                                                                 boolean withPrefixes)

      • iterator

        @NotNull
public @NotNull java.util.Iterator<LineInfo> iterator()
        Description copied from interface: LineAppendable
        Full line iterator NOTE: will not issue line() to terminate any unterminated lines before iteration and will not include unterminated lines in iteration
        Specified by:
        iterator in interface java.lang.Iterable<LineInfo>
        Specified by:
        iterator in interface LineAppendable
        Returns:
        iterator over lines

      • getLines

        @NotNull
public @NotNull java.lang.Iterable<BasedSequence> getLines​(int maxTrailingBlankLines,
                                                           int startLine,
                                                           int endLine,
                                                           boolean withPrefixes)
        Description copied from interface: LineAppendable
        Full line iterator over some lines

        NOTE: will issue line() to terminate any unterminated lines before iteration

        Specified by:
        getLines in interface LineAppendable
        Parameters:
        maxTrailingBlankLines - maximum trailing blank lines, -1 if trailing EOL should be removed
        startLine - start line index
        endLine - end line index, exclusive
        withPrefixes - true if prefixes should be included, else only non-prefix line text
        Returns:
        iterator over lines

      • getLinesInfo

        @NotNull
public @NotNull java.lang.Iterable<LineInfo> getLinesInfo​(int maxTrailingBlankLines,
                                                          int startLine,
                                                          int endLine)
        Description copied from interface: LineAppendable
        Full line iterator with line info

        NOTE: will issue line() to terminate any unterminated lines before iteration

        Specified by:
        getLinesInfo in interface LineAppendable
        Parameters:
        maxTrailingBlankLines - maximum trailing blank lines, -1 if trailing EOL should be removed
        startLine - start line index
        endLine - end line index, exclusive
        Returns:
        iterator over lines