Changelog for NovaSheets

• 1.0.0 • 1.0.1 • 1.0.2 • 1.0.3 • 1.0.4 • 1.0.5 • 1.0.6 • 1.0.7 • 1.0.8
  • 1.0.0-pre1 • 1.0.0-pre2 • 1.0.0-pre3 • 1.0.0-pre4 • 1.0.0-rc1 • 1.0.0-rc2 • 1.0.0-rc3 • 1.0.0-rc4 • 1.0.0-rc5 • 1.0.0-rc6 • 1.0.0
• 0.6.0 • 0.6.1 • 0.6.2 • 0.6.3 • 0.6.4 • 0.6.5 • 0.6.6 • 0.6.7
• 0.5.0 • 0.5.1 • 0.5.2
• 0.4.0 • 0.4.1 • 0.4.2 • 0.4.3 • 0.4.4 • 0.4.5 • 0.4.6 • 0.4.7
• 0.3.0 • 0.3.1 • 0.3.2 • 0.3.3 • 0.3.4 • 0.3.5
• 0.2.0 • 0.2.1
• 0.1.0 • 0.1.1 • 0.1.2

1.0.8

2023-08-01

• Fixes
  • [General] Fixed a crash occurring when invoking NovaSheets.
  • [CLI] Fixed input from piped stdin not being parsed.

1.0.7

2023-07-20

• Changes
  • [General] Changed output of the CLI --help and --version commands.
• Fixes
  • [Scripting] Fixed the parse() function not working when used in browser.

1.0.6

2021-07-27

• Changes
  • [Scripting] Changed browser file imports to be asyncronous using fetch instead of XMLHttpRequest.
• Fixes
  • [Syntax] Fixed newlines breaking parsed comments.
  • [Syntax] Fixed simple breakpoints inside parsed comments being parsed incorrectly.
  • [Syntax] Fixed empty blocks being removed from the output.
  • [Syntax] Fixed duplicate media queries being condensed incorrectly.
  • [Scripting] Fixed browser file imports crashing the parser when unavailable.

1.0.5

2021-07-24

• Fixes
  • [Syntax] Fixed the parser crashing when it comes across a child selector.
  • [Syntax] Fixed multiple substitutions of the same variable containing a CSS block outputting garbage.

1.0.4

2021-07-24

• Fixes
  • [Syntax] Fixed multiple instances of block substitution of the same selector not being parsed.
  • [Syntax] Fixed multiple substitutions of the same variable not being parsed together.
  • [Syntax] Fixed parent element substitutions in child selectors of simple breakpoints not being trimmed properly.

1.0.3

2021-07-19

• Removals
  • [Syntax] Removed parser option MAX_RECURSION.
• Fixes
  • [Syntax] Fixed slashes inside CSS attributes font-* and grid-* being treated as division.

1.0.2

2021-07-12

• Changes
  • [Syntax] Changed output indentation to more closely follow input indentation.
  • [Syntax] Changed output to merge duplicate media selectors.
  • [CLI] Changed input path parsing to imply file extension of .nvss if unset.
• Fixes
  • [Syntax] Fixed comments in CSS output being duplicated over child selectors.
  • [Syntax] Fixed nested media queries not working.

1.0.1

2021-07-03

• Changes
  • [CLI] Revamped CLI usage, which now allows unprefixed command names (e.g., novasheets help can now be used instead of novasheets --help).
• Fixes
  • [Syntax] Fixed keywords @var and @endvar not being parsed properly when not separated from other content by newlines.
  • [Syntax] Fixed superfluous whitespace being added to CSS output.
  • [Syntax] Fixed parser option DECIMAL_PLACES not being applied to all applicable values.
  • [Syntax] Fixed at-rules being prefixed with erroneous ampersands.
  • [Scripting] Fixed custom options not being applied.
  • [Functions] Fixed @each and @repeat not treating whitespace properly.

1.0.0

2021-06-19

The full release of NovaSheets!

The following changelog is as compared with 0.6.7. For the changes since the last release candidate, see the 1.0.0-release section.

• Additions
  • [Syntax] Added CSS nesting, using & to refer to the parent selector explicitly.
  • [Syntax] Added parser constant BUILTIN_FUNCTIONS for controlling whether or not to implement built-in functions.
  • [CLI] Added support for reading syntax from piped stdin.
  • [CLI] Added [<command>] option to novasheets --help to display help for a given command.
  • [Scripting] Added an API for adding custom NovaSheets functions using class NovaSheets with method addFunction(name, function), where the first argument of function is the matched content and the remainder are variable arguments.
  • [Scripting] Added a second parameter to parse for passing through a class with custom functions.
  • [Scripting] Added a third parameter to compile for passing through a class with custom functions.
• Removals
  • [Syntax] Removed parser constants MAX_MATH_RECURSION and KEEP_NAN.
  • [Syntax] Removed previous and parent selectors, % an &, as this usage is now accomplished by nesting.
  • [Syntax] Removed item slicer <.
• Changes
  • [Syntax] Changed parser constant keyword from @const to @option.
  • [Syntax] Changed function names to be case insensitive.
  • [Syntax] Changed media query output to not condense duplicated queries as it sometimes broke output.
  • [CLI] Changed compilation to require using the --compile/-c flag.
  • [Scripting] Changed compile function to be asyncronous.
  • [Functions] Changed math functions to return just their argument when invalid.
  • [Functions] Changed built-in color functions to no longer output console warnings for invalid colors.
• Fixes
  • [Syntax] Fixed object substitution not working due to selectors not being trimmed.
  • [Syntax] Fixed small numbers receiving incorrect decimal places.
  • [Syntax] Fixed negative exponents not being parsed.
  • [Syntax] Fixed hexadecimal colours not being coerced.
  • [Functions] Fixed @boolean treating pipes as argument separators.
  • [Functions] Fixed @boolean not having its output value coerced into true/false.
  • [Functions] Fixed value NaN not being checked properly.
  • [Security] Fixed a code injection issue using built-in boolean functions.
• Internal
  • [Source] Rewrote source code in TypeScript.

1.0.0 (release)

2021-06-19

• Changes
  • [Scripting] Changed compile function to be asyncronous.
• Fixes
  • [Syntax] Fixed parent selectors substituted using & not being trimmed.
  • [Syntax] Fixed nested selectors being outputted out of order.
  • [Syntax] Fixed object substitution not working due to selectors not being trimmed.
  • [Functions] Fixed @breakpoint outputting invalid selectors when nested.
  • [Functions] Fixed @boolean not having its output value coerced into true/false.

1.0.0-rc6

2021-06-12

• Additions
  • [CLI] Added [<command>] option to novasheets --help to display help for a given command.
• Removals
  • [Syntax] Removed parser constants MAX_MATH_RECURSION and KEEP_NAN.
• Fixes
  • [Syntax] Fixed variables containing braces/blocks breaking the parser.
• Internal
  • [Source] Replaced math parsing code with package math-and-unit-parser.
  • [Source] Replaced nesting compilation code using package balanced-match.
  • [Source] Replaced browser building code with package webpack.

1.0.0-rc5

2021-05-29

• Changes
  • [Syntax] Changed function names to be case insensitive.
  • [Syntax] Changed media query output to not condense duplicated queries as it sometimes broke output.
• Fixes
  • [Syntax] Fixed vanilla CSS functions being incorrectly parsed.
  • [Syntax] Fixed simple breakpoints not being a valid sole child selector.

1.0.0-rc4

2021-05-29

• Changes
  • [Syntax] Changed simple breakpoints to not output only screen.
• Fixes
  • [Syntax] Fixed vanilla CSS functions not being parsed when containing NovaSheets content.
  • [Syntax] Fixed CSS calc() functions not being parsed properly.
  • [Syntax] Fixed comments being duplicated over child selectors.
  • [Functions] Fixed @breakpoint function not being able to be used in a child selector by making it use simple breakpoints.

1.0.0-rc3

2021-05-22

• Changes
  • [Syntax] Changed comma-separated parent selectors to have each selector part distributed over its children.
• Fixes
  • [Syntax] Fixed CSS calc() functions incorrectly having brackets removed.
  • [Syntax] Fixed the / separator in vanilla CSS color functions being treated as a division operator.
  • [Syntax] Fixed constructs like 0 -1em being treated as subtraction.
  • [Syntax] Fixed spaced double negatives not being parsed as math.

1.0.0-rc2

2021-05-18

• Changes
  • [Syntax] Changed CSS calc() functions to be static with math operations unparsed.
• Fixes
  • [Syntax] Fixed nested selectors sometimes not having their parent selectors parsed.
  • [Syntax] Fixed block substitution not working on nested selectors.

1.0.0-rc1

2021-05-16

• Changes
  • [Syntax] Changed simple breakpoint output to remove duplicate media queries.
• Fixes
  • [Syntax] Fixed nested selectors having only a maximum of two selectors when flattened.
  • [Syntax] Fixed regular at-rules being malformed in the output.
  • [Syntax] Fixed simple breakpoints not working for blocks containing line breaks.

1.0.0-pre4

2021-04-04

• Additions
  • [Syntax] Added CSS nesting, using & to refer to the parent selector explicitly.
  • [CLI] Added support for reading syntax from piped stdin.
• Removals
  • [Syntax] Removed previous and parent selectors, % an &, as this usage is now accomplished by nesting.
  • [Syntax] Removed item slicer <.
  • [Scripting] Removed option nonest.
• Changes
  • [Scripting] Renamed option notrim to trim (inverting its usage) and allargs to allArgs.
  • [Functions] Changed math functions to return just their argument when invalid.
• Fixes
  • [Syntax] Fixed small numbers receiving incorrect decimal places.
  • [Functions] Fixed various errors relating to incorrect type assumptions in built-in functions.
  • [Functions] Fixed built-in function $(@boolean) treating pipes as argument separators.
  • [Functions] Fixed built-in functions not checking NaN properly.
  • [Security] Fixed a code injection issue using built-in boolean functions.
• Internal
  • [Scripting] Added type definitions for exported functions.

1.0.0-pre3

2021-03-06

• Fixes
  • [CLI] Fixed command-line usage not working.
  • [General] Fixed conflicting files being published to npm.

1.0.0-pre2

2021-03-06

• Fixes
  • [Syntax] Fixed negative exponents not being parsed.
  • [Syntax] Fixed hexadecimal colours not being coerced.
  • [Syntax] Fixed various errors relating to incorrect type assumptions.
• Internal
  • [Source] Rewrote source code in TypeScript.

1.0.0-pre1

2021-01-25

• Additions
  • [Scripting] Added an API for adding custom NovaSheets functions using class NovaSheets with method addFunction(name, function), where the first argument of function is the matched content and the remainder are variable arguments.
  • [Scripting] Added a second parameter to parse for passing through a class with custom functions.
  • [Scripting] Added a third parameter to compile for passing through a class with custom functions.
  • [Syntax] Added parser constant BUILTIN_FUNCTIONS for controlling whether or not to implement built-in functions.
• Changes:
  • [CLI] Breaking: Compiling NovaSheets files must now be done explicitly using the --compile/-c flag.
  • [Syntax] Breaking: Changed parser constant keyword from @const to @option.
  • [Syntax] Changed built-in color functions to no longer output console warnings for invalid colors.

0.6.7

2021-01-17

• Additions
  • Added glob support to the --compile command.
  • Added console messages for successfully compiled files.
• Changes
  • Changed simple breakpoint maximums to be exclusive, allowing the same number to be used in two separate selectors without clashes.
  • Changed built-in function @breakpoint to offset the maximum size by −1 instead of the minimum size by +1.
• Fixes
  • Fixed --compile usage throwing an error when given an extensionless input filename, an implicit output filename, or a nonexistent directory in its output file path.
  • Fixed command-line usage throwing an error because of browser-only code.
  • Fixed parser constant KEEP_UNPARSED not working.

0.6.6

2021-01-03

• Additions
  • Added parser constant KEEP_UNPARSED which controls whether or not to keep unparsed variables in the output (defaults to false).
• Changes
  • Changed simple breakpoints to only allow spaces and ellipsis as delimiters due to interference with CSS selectors.
  • Changed simple breakpoints to work with previous element selectors.
  • Changed math unit simplifications to shorten sets of 100cm and 1000mm to 1m.
• Fixes
  • Fixed the parser crashing when built-in function @repeat was missing its delimiter parameter.

0.6.5

2021-01-02

• Additions
  • Added simple breakpoints, done by placing @[<min>][..][<max>] directly after a CSS selector but before the block content.
  • Added built-in function @uncapitalize to set the initial letter of a string to lowercase.
  • Added aliases @darken, @lighten, and @desaturate for built-in functions @shade, @tint, and @tone respectively.
• Removals
  • Removed built-in function @camelcase due to its unintuitive behavior and its use case being superceded by @titlecase combined with @uncapitalize.
• Changes
  • Changed built-in function @repeat to allow a delimiter parameter. New syntax: $( @repeat | <amount> | [<delimiter>] | <content> ).

0.6.4

2020-11-14

• Additions
  • Added object content substitution, which substituted all property-value pairs, done by placing an exclamation point (!) after an object: {attr: val;}!.
• Changes
  • Changed the object item substitution notation to use angle brackets instead of square brackets to avoid interfering with CSS attribute selectors, changing the format from {attr:val}[attr] to {attr:val}<attr>.
• Fixes
  • Fixed exponent notation applying to hexadecimal colors.

0.6.3

2020-09-12

• Additions
  • Added declaration substitution, which outputs the contents of a CSS block declaration, using the format $<selector>.
  • Added object notation, used by placing square brackets after a set of attribute-value pairs (which is the same as a CSS block) surrounded by curly brackets: {attr1: val1; attr2: val2;}[attr1].
• Changes
  • Refactored code to avoid possible clashes with other scripts.

0.6.2

2020-08-15

• Additions
  • Added parser constant DECIMAL_PLACES for controlling how many decimal places numbers are outputted with.
  • Added built-in function @lowercase to change a string to lowercase.
  • Added built-in function @uppercase to change a string to uppercase.
  • Added built-in function @titlecase to capitalize the first letter of each word in a string.
  • Added built-in function @camelcase to capitalize the first letter of each word in a string except for the first one.
  • Added built-in function @capitalize/@capitalise to capitalize the first letter of a string.
• Changes
  • Changed @var declarations to allow the variable content to be modified later in the document.
  • Changed @const declarations to make the parser constant name case insensitive.
  • Changed parsing order to resolve previous element selectors before they are used in built-in functions.
  • Changed built-in function @each to remove the need to explicitly declare the splitting and joining delimiters. The joiner now defaults to the splitter, which in turn defaults to a comma (,). New syntax: $( @each | <items> [| <splitter = ","> [| <joiner = splitter>]] | <content> ).
  • Changed built-in function @extract to remove the need to explicitly declare the delimiter. New syntax: $( @extract | <list> [| <delimiter = ",">] | <index> ).
• Fixes
  • Fixed previous element selectors being too greedy in what they copy.
  • Fixed built-in function @each treating an empty string and a space as the same character in its delimiter arguments.
  • Fixed built-in function @replace ignoring whitespace in its finder and replacer arguments.

0.6.1

2020-07-29

• Changes
  • Changed the syntax of built-in function @breakpoint to allow declaration blocks in its second and third arguments and to suppress the output of the "min-width" segment if its respective argument is not set.
• Fixes
  • Fixed erroneous console errors occurring in Node.
  • Fixed empty arguments nullifying the following ones.
  • Fixed built-in function @grayscale outputting an HSLA color when passed an HSL color.
  • Fixed built-in function @contrast outputting "undefined" when missing its arguments.

0.6.0

2020-07-26

• New features
  • Added command-line support using node novasheets <args> (or, after installing using npm install -g novasheets: novasheets <args>).
    • Arguments: [--compile] <input file> <output file> to compile a NovaSheets file into CSS; --parse to parse raw NovaSheets content and log the output CSS to the console; --help to display help; and --version to display the current version.
  • Added previous element selectors, used to copy the contents of the previous CSS selector.
    • Ampersands (&) take the previous raw selector (i.e., the last selector that does not contain an ampersand), while percent signs (%) take the previous selector.
    • Add less-than signs (<) to slice the last item off the selector (for example, if &< becomes div+pre<, the output is div); characters treated as delimiters are >, +, ~, and whitespace.
  • Added a warning for when HSL values are passed into the luma function as it only works for RGB values.
• New functions
  • Added built-in function @breakpoint to make media queries easier. Syntax: $(@breakpoint | <pixels>[px] | <selector> | <smaller> | <larger> ).
  • Added built-in function @prefix to add all vendor prefixes to a CSS property. Syntax: $(@prefix | <property> | <value> ).
  • Added built-in function @spin which cycles the hue of a color. Syntax: $(@spin | <color> | <amount> ).
  • Added built-in function @blend which blends two colors together. Syntax: $(@blend | <color1> | <color2> | [<amount>] ).
  • Added built-in function @shade which blends a color with black. Syntax: $(@shade | <color> | [<amount>] ).
  • Added built-in function @tint which blends a color with white. Syntax: $(@tint | <color> | [<amount>] ).
  • Added built-in function @tone which blends a color with gray. Syntax: $(@tone | <color> | [<amount>] ).
  • Added built-in function @contrast which controls a value dependent on the contrast of a color. Syntax: $(@contrast | <color> | <light> | <dark> ).
  • Added built-in function @grayscale (alias @greyscale) which removes the hue of a color. Syntax: $(@grayscale| <color> ).
• Changes
  • Changed built-in function @color to coerce single- and double-character hash values and allow uppercase type values.
  • Changed length math to always output the cleanest unit.
  • Changed console warnings.
• Fixes
  • Fixed built-in function @if outputting undefined when missing its second argument.
  • Fixed built-in color functions not outputting alpha values as percents.
  • Fixed length units not being converted properly.
  • Fixed more floating-point artifacts not being fully removed.

0.5.2

2020-07-14

• Fixed order of operations not being applied properly.
• Fixed double negatives sometimes not being treated as addition.
• Fixed spaced math operations inside brackets not being parsed properly.
• Fixed some floating-point artifacts not being fully removed.
• Refactored internal code to simplify math parsing and improve performance of math operations.

0.5.1

2020-07-09

• Added console warnings for when the parser detects a recursive variable.
• Changed built-in function @each to add an output delimiter parameter. New syntax: $(@each | <list> | <list delimiter> | <output delimiter> | <content> ).
• Changed built-in function @repeat to allow using pipes and using $i to refer to the current index in its content.
• Changed in-built math functions to type check its input to prevent invalid math operations.
• Changed CSS output to keep the same indentation and newline formatting as the input.
• Fixed missing @endvar declarations causing infinite recursion.
• Fixed built-in function @each not allowing nested variables containing instances of $i, $v, etc.
• Fixed built-in function @clamp not clamping properly to its maximum value.
• Fixed built-in function @replace not parsing regular expressions properly.
• Fixed math operations inside built-in functions not being parsed before the function is applied.
• Fixed default argument substitutions requiring the pipe to be prefixed with a space.
• Fixed arguments being skipped if they are placed after an empty anonymous argument.
• Fixed unary negative operators being treated as subtraction.
• Fixed floating-point artifacts not being removed.
• Fixed slashes inside of CSS color functions being treated as division signs.
• Fixed URLs being treated as comments.
• Fixed inaccessible stylesheets having their 404 pages returned as stylesheet contents.
• Refactored internal code to check for math operations only when necessary, improving performance by up to 95%.

0.5.0

2020-07-04

• Added different categories of block comments, each with a different purpose:
  • Regular comments (/*content*/): output the raw content inside of them as a CSS comment; i.e, itself.
  • Static comments (/*/content/*/): output the raw content inside of them as raw CSS or NovaSheets syntax; i.e., itself but without the "/*/"s.
  • Parsed comments (/*[content]*/): output the parsed content inside of them as a CSS comment.
• Added support for default argument content, declared by adding a pipe (|) followed by the default content into the argument substitutor (e.g., $[text|default]).
• Added built-in function @extract for extracting the nth item from a delimited string. Syntax: $(@extract | <list> | <delimiter> | <index> ).
• Added built-in function @each for applying an operation to each item in a delimited string, referring to the index with $i and value with $v, $v[1], $v[$i+1], etc. Syntax: $(@each | <list> | <delimiter> | <replacement> ).
• Added built-in function @luma for calculating the relative luminance (between 0 and 1) of a color. Syntax: $(@luma | <color> ).
• Added colour and colourpart as aliases of built-in functions @color and colorpart respectively.
• Added console warnings for when variables are not parsed.
• Removed the need to explicitly initialize variables in variable declarations.
• Fixed built-in function @color not working when passed a CSS color function with a hash color output.
• Fixed built-in function @replace not allowing full regular expression syntax such as grouping and boolean 'or'.
• Fixed built-in functions @degrees and gradians having incorrect conversions between each other.
• Fixed built-in functions @e and pi not being parsed when they have leading or trailing whitespace.
• Fixed small decimal values being truncated incorrectly (e.g., 0.000000001234 turning into 0234 instead of just 0).
• Fixed equals signs in the contents of a single-line variable declaration (e.g., @var x = y = z) causing the content that follows to not show up in the output CSS.
• Refactored internal parsing of variables to bracket-match completely, allowing for nested parentheses.

0.4.7

2020-06-27

• Added parser constant MAX_MATH_RECURSION for controlling how many times to perform each part of the order of operations before continuing on to the next operator.
• Added parser constant KEEP_NAN for deciding whether or not to parse malformed numbers to NaN.
• Changed built-in function @color to output a generic CSS level-4 color function when given a type other than rgb, rgba, hsl, hsla, or hash, and to allow inputting any value as a percentage (which can be either implicit, i.e. below 1, or explicit using %).
• Changed parsing of units to once again allow having a space before the unit.
• Fixed the parser crashing when it comes across invalid unit math, regular expressions in built-in function @replace, empty arguments in built-in function @color, or certain values in built-in functions @min and max.
• Fixed built-in functions incorrectly parsing negative numeric arguments.
• Fixed inline variable declarations including the content after the @endvar keyword.
• Fixed single zero-padded numbers being truncated.
• Fixed spaced + and - math operators not being parsed.
• Fixed units with millimetres being incorrectly converted.
• Fixed hexadecimal values containing letters not being treated as numbers.

0.4.6

2020-06-25

• Changed parsing of numbers to always convert from base 2, 8, and 16 to base 10.
• Changed parsing of units to disallow having a space before the unit.
• Fixed built-in function @replace not replacing all instances of the specified string.
• Fixed e characters in hexadecimal values being parsed as order-of-magnitude exponentation.
• Fixed newlines and spaced units being truncated completely in the output CSS.
• Fixed pseudo-classes being malformed in the output CSS.

0.4.5

2020-06-23

• Changed built-in function @color to default missing hex values to 0 and allow more flexibility in its arguments.
• Changed built-in function @colorpart allowing hex/hexadecimal as aliases for hash.
• Fixed built-in function @bitwise outputting its name as well as its parsed content.
• Fixed built-in function @color not allowing percentages and not parsing its arguments properly.
• Fixed built-in function @colorpart not parsing parts properly, not allowing rgb/rgba CSS functions when using type hash/#, and not outputting the raw hash value if passed with type hash/#.
• Fixed built-in function @round outputting NaN when the "decimal places" argument is missing.
• Fixed floating-point math outputting strings of zeroes or nines.

0.4.4

2020-06-21

• Changed variable declarations using the existing = notation to be strictly single-line declarations.
• Changed unit parsing to be more intuitive, allowing more units in any permutation (1/2em, 1em/2, 1em/2em, etc).
• Changed syntax of built-in function @log to allow a base as its first argument.
• Changed built-in function @replace to allow regular expressions.
• Changed built-in functions @degrees, @radians, and @gradians to default to radians, degrees and degrees respectively.
• Changed built-in function @color to allow colors being created from hash values.
• Changed built-in function @colorpart to allow more aliases for its first parameter, such as GREEN/grn/etc for "green", etc.
• Fixed bracketed numbers not having math operations applied to them.
• Fixed boolean values outputting incorrect results when containing leading and/or trailing whitespace.
• Fixed built-in function @if outputting undefined when falsey and the "if false" argument is missing.
• Fixed conversions to radians in built-in functions @degrees and @gradians.
• Fixed built-in function @ceil not working.
• Fixed leading and/or trailing whitespace affecting the output of built-in functions.
• Fixed built-in function @colorpart breaking when being passed a raw CSS color function.

0.4.3

2020-06-18

• Added support for scientific notation using E/e for values below 1e21.
• Fixed declarators in the middle of a line not being parsed.
• Fixed anonymous arguments not adapting to the maximum argument parser constant.
• Fixed parsing of multiple order of operations.

0.4.2

2020-06-16

• Added support for anonymous variable arguments.
• Changed math parsing to allow a space between the last number and its unit to improve readability.
• Fixed inline comments breaking variable declarations.
• Fixed URLs in variable contents being treated as comments.
• Fixed order of operations not being properly applied.

0.4.1

2020-06-14

• Added built-in function @degrees for converting a value to degrees.
• Changed syntax of built-in functions @degrees, @radians, and @gradians to mandate the keywords deg, rad, or grad in its first argument.
• Fixed ampersands not working when using an HTML element as input.
• Fixed chained logical statements not being parsed correctly.
• Fixed bitwise or not working properly.
• Fixed math inside the contents CSS calc function being incorrectly parsed.

0.4.0

2020-06-13

• Added support for declaring variables anywhere in the document.
• Added support for placing variable content on the same line as the variable declaration by seperating the two with "=".
• Added the @endvar keyword for declaring the end of the contents of a variable.
• Added built-in functions @radians/@gradians and @bitwise/@boolean for converting from degrees and performing bitwise/logical operations, respectively.
• Added support for operators not/!/~, and/&&/&, or/||/|, nand, nor, xor, and xnor in the first argument of built-in funcion if.
• Removed the --- separator keyword as it is superceded by @endvar.
• Removed the deg and grad keywords as they interfere with raw CSS.
• Fixed unparsed or invalid variables and arguments appearing in the output CSS.

0.3.5

2020-06-11

• Changed output to put each CSS declaration on its own line.
• Fixed empty variables being truncated completely to an empty string instead of one space.

0.3.4

2020-06-09

• Added deg and grad keywords which change the preceeding number to radians and gradians, respectively.
• Added support for length conversions between cm, mm, ft, and in to metres using math operators.
• Added in-built function percent for converting a value to a percentage.
• Changed the source data attribute of the output style element to use a relative link.
• Removed support for using math operators on the right side of values with units.
• Fixed variables not being substituted when they contain trailing whitespace.
• Fixed @const declarations that appear after @var declarations being part of that variables content.

0.3.3

2020-06-09

• Added support for using math operators on the right side of values with units.
• Fixed multiple calls of the same variable with different arguments outputting the same result each time.
• Fixed nested variables with arguments still sometimes not being parsed correctly.
• Fixed the parentheses in math operations not being removed when it contains leading or trailing whitespace.

0.3.2

2020-06-08

• Changed output style element to use the file path of the external stylesheet as the source data attribute.
• Fixed nested variables with arguments sometimes not being parsed correctly.

0.3.1

2020-06-07

• Changed output element to include the source of the stylesheet in the element's dataset.
• Fixed external stylesheet imports not working in older browsers.
• Fixed bracketed numbers having their brackets removed.
• Fixed parsing of numbers with many prefixed plus or minus signs.

0.3.0

2020-06-06

• Added a plethora of built-in variables, all prefixed with @.
  • Math functions and variables: mod, min, max, clamp, sin, asin, cos, acos, tan, atan, abs, floor, ceil, round, log, root, and pi.
  • Logical functions: if.
  • Text functions: encode, replace, and length.
  • Color functions: color and colorpart.
• Added support for math conversions using exponents (^ or **), multiplication (*), division (/), addition (+), and subtraction (-); order of operations applies in that order.
  • Supports base 10 (no prefix), base 2 (prefix 0b), base 8 (prefix 0o), and base 16 (prefix 0x).
• Added @const declarator to modify parser constants MAX_RECURSION and MAX_ARGUMENTS.
• Changed NovaSheets type and rel declarations to be case insensitive and to allow the word "NovaSheet" being pluralised.
• Changed NovaSheets type declarations to apply to any element instead of applying only to template elements.

0.2.1

2020-05-31

• Changed output to prevent multiple duplicate stylesheets being outputted when running the parsing command multiple times.
• Fixed parameters sometimes not being fully parsed.

0.2.0

2020-05-31

• Added support for variable parameters.

0.1.2

2020-05-31

• Fixed tabs not being treated as spaces when parsing input.
• Fixed CRLF character breaking variable substitution.
• Fixed infinite recursion on variable substitution.

0.1.1

2020-05-29

• Added support for nesting variables inside other variables.
• Fixed inaccessible stylesheets crashing the parser.

0.1.0

2020-05-28

• Supports variable declaration in the front matter and substitution in the CSS content.
• Supports both internal and external stylesheets.
• Supports single-line comments.