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HTML formatter option: line_numbers / highlight_lines

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This commit is contained in:
Roberto Alsina
2024-08-09 14:00:42 -03:00
parent d0c2b1764a
commit f98f44365f
5 changed files with 15 additions and 6 deletions
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14
src/formatters/html.cr
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@ -12,13 +12,13 @@ module Tartrazine
# property surrounding_pre : Bool = true
# property wrap_long_lines : Bool = false
# property line_numbers : Bool = false
property? line_numbers : Bool = false
property line_number_start : Int32 = 1
property line_number_id_prefix : String = "line-"
# property line_number_in_table : Bool = false
# property linkable_line_numbers : Bool = false
# property highlight_lines : Array(Range(Int32, Int32)) = [] of Range(Int32, Int32)
property highlight_lines : Array(Range(Int32, Int32)) = [] of Range(Int32, Int32)
def format(text : String, lexer : Lexer, theme : Theme) : String
text = format_text(text, lexer, theme)
@ -45,12 +45,14 @@ module Tartrazine
output = String.build do |outp|
outp << "<pre class=\"#{get_css_class("Background", theme)}\"><code class=\"#{get_css_class("Background", theme)}\">"
lines.each_with_index(offset: line_number_start - 1) do |line, i|
outp << "<span id=\"#{line_number_id_prefix}#{i + 1}\">"
line_label = line_numbers? ? "#{i + 1}".rjust(4).ljust(5) : ""
line_class = highlighted?(i + 1) ? "class=\"#{get_css_class("Highlight", theme)}\"" : ""
outp << "<span id=\"#{line_number_id_prefix}#{i + 1}\" #{line_class}>#{line_label}</span>"
line.each do |token|
fragment = "<span class=\"#{get_css_class(token[:type], theme)}\">#{token[:value]}</span>"
outp << fragment
end
outp << "</span>"
end
outp << "</code></pre>"
end
@ -96,6 +98,10 @@ module Tartrazine
}]
end
def highlighted?(line : Int) : Bool
highlight_lines.any?(&.includes?(line))
end
def group_tokens_in_lines(tokens : Array(Token)) : Array(Array(Token))
split_tokens = [] of Token
tokens.each do |token|