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64 lines
2.4 KiB
Ruby
64 lines
2.4 KiB
Ruby
require 'strscan'
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require 'sass/script/node'
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require 'sass/script/variable'
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require 'sass/script/funcall'
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require 'sass/script/operation'
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require 'sass/script/literal'
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require 'sass/script/parser'
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module Sass
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# SassScript is code that's embedded in Sass documents
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# to allow for property values to be computed from variables.
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#
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# This module contains code that handles the parsing and evaluation of SassScript.
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module Script
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# The regular expression used to parse variables.
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# @private
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MATCH = /^[!\$](#{Sass::SCSS::RX::IDENT})\s*((?:\|\|)?=|:)\s*(.+?)(!(?i:default))?$/
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# The regular expression used to validate variables without matching.
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# @private
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VALIDATE = /^[!\$]#{Sass::SCSS::RX::IDENT}$/
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# Parses a string of SassScript
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#
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# @param value [String] The SassScript
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# @param line [Fixnum] The number of the line on which the SassScript appeared.
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# Used for error reporting
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# @param offset [Fixnum] The number of characters in on `line` that the SassScript started.
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# Used for error reporting
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# @param options [{Symbol => Object}] An options hash;
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# see {file:SASS_REFERENCE.md#sass_options the Sass options documentation}
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# @return [Script::Node] The root node of the parse tree
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def self.parse(value, line, offset, options = {})
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Parser.parse(value, line, offset, options)
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rescue Sass::SyntaxError => e
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e.message << ": #{value.inspect}." if e.message == "SassScript error"
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e.modify_backtrace(:line => line, :filename => options[:filename])
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raise e
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end
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# @private
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def self.var_warning(varname, line, offset, filename)
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Haml::Util.haml_warn <<MESSAGE
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DEPRECATION WARNING:
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On line #{line}, character #{offset}#{" of '#{filename}'" if filename}
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Variables with ! have been deprecated and will be removed in version 3.2.
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Use \"$#{varname}\" instead.
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You can use `sass-convert --in-place --from sass2 file.sass' to convert files automatically.
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MESSAGE
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end
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def self.equals_warning(types, name, val, guarded, line, offset, filename)
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Haml::Util.haml_warn <<MESSAGE
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DEPRECATION WARNING:
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On line #{line}#{", character #{offset}" if offset}#{" of '#{filename}'" if filename}
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Setting #{types} with #{"||" if guarded}= has been deprecated and will be removed in version 3.2.
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Use "#{name}: #{val}#{" !default" if guarded}" instead.
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You can use `sass-convert --in-place --from sass2 file.sass' to convert files automatically.
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MESSAGE
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end
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end
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end
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