question: rationalizes all the fonts , removing duplicate entries concode_field_sep ArrayList formatsList concode_elem_sep HashMap formats concode_elem_sep Fonts fonts concode_elem_sep int nextCustomIndexNumber concode_elem_sep int customFormatStartIndex concode_elem_sep Logger logger concode_elem_sep PaletteRecord palette concode_elem_sep int maxFormatRecordsIndex concode_elem_sep int minXFRecords concode_elem_sep ArrayList xfRecords concode_field_sep Fonts getFonts concode_elem_sep PaletteRecord getPalette concode_elem_sep int getNumberOfFormatRecords concode_elem_sep void addFormat concode_elem_sep NumberFormat getNumberFormat concode_elem_sep XFRecord getXFRecord concode_elem_sep void setColourRGB concode_elem_sep FormatRecord getFormatRecord concode_elem_sep IndexMapping rationalizeDisplayFormats concode_elem_sep boolean isDate concode_elem_sep void setPalette concode_elem_sep DateFormat getDateFormat concode_elem_sep RGB getColourRGB concode_elem_sep void addStyle concode_elem_sep void write concode_elem_sep IndexMapping rationalize
target: IndexMapping function ( ) { return fonts . rationalize ( ) ; }