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API changes to make it nicer

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These are incompatible, tho.

* Theme is now a property of the formatter instead
  of passing it arounf
* get_style_defs is now style_defs
This commit is contained in:
Roberto Alsina
2024-08-13 10:57:02 -03:00
parent 88f5674917
commit 2e87762f1b
4 changed files with 47 additions and 22 deletions
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43
src/formatters/html.cr
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@ -17,19 +17,35 @@ module Tartrazine
property? wrap_long_lines : Bool = false
property weight_of_bold : Int32 = 600
def format(text : String, lexer : Lexer, theme : Theme) : String
text = format_text(text, lexer, theme)
property theme : Theme
def initialize(@theme : Theme = Tartrazine.theme("default-dark"), *,
@highlight_lines = [] of Range(Int32, Int32),
@class_prefix : String = "",
@line_number_id_prefix = "line-",
@line_number_start = 1,
@tab_width = 8,
@line_numbers : Bool = false,
@linkable_line_numbers : Bool = true,
@standalone : Bool = false,
@surrounding_pre : Bool = true,
@wrap_long_lines : Bool = false,
@weight_of_bold : Int32 = 600,)
end
def format(text : String, lexer : Lexer) : String
text = format_text(text, lexer)
if standalone?
text = wrap_standalone(text, theme)
text = wrap_standalone(text)
end
text
end
# Wrap text into a full HTML document, including the CSS for the theme
def wrap_standalone(text, theme) : String
def wrap_standalone(text) : String
output = String.build do |outp|
outp << "<!DOCTYPE html><html><head><style>"
outp << get_style_defs(theme)
outp << style_defs
outp << "</style></head><body>"
outp << text
outp << "</body></html>"
@ -37,21 +53,21 @@ module Tartrazine
output
end
def format_text(text : String, lexer : Lexer, theme : Theme) : String
def format_text(text : String, lexer : Lexer) : String
lines = lexer.group_tokens_in_lines(lexer.tokenize(text))
output = String.build do |outp|
if surrounding_pre?
pre_style = wrap_long_lines? ? "style=\"white-space: pre-wrap; word-break: break-word;\"" : ""
outp << "<pre class=\"#{get_css_class("Background", theme)}\" #{pre_style}>"
outp << "<pre class=\"#{get_css_class("Background")}\" #{pre_style}>"
end
outp << "<code class=\"#{get_css_class("Background", theme)}\">"
outp << "<code class=\"#{get_css_class("Background")}\">"
lines.each_with_index(offset: line_number_start - 1) do |line, i|
line_label = line_numbers? ? "#{i + 1}".rjust(4).ljust(5) : ""
line_class = highlighted?(i + 1) ? "class=\"#{get_css_class("LineHighlight", theme)}\"" : ""
line_class = highlighted?(i + 1) ? "class=\"#{get_css_class("LineHighlight")}\"" : ""
line_id = linkable_line_numbers? ? "id=\"#{line_number_id_prefix}#{i + 1}\"" : ""
outp << "<span #{line_id} #{line_class} style=\"user-select: none;\">#{line_label} </span>"
line.each do |token|
fragment = "<span class=\"#{get_css_class(token[:type], theme)}\">#{token[:value]}</span>"
fragment = "<span class=\"#{get_css_class(token[:type])}\">#{token[:value]}</span>"
outp << fragment
end
end
@ -61,10 +77,10 @@ module Tartrazine
end
# ameba:disable Metrics/CyclomaticComplexity
def get_style_defs(theme : Theme) : String
def style_defs : String
output = String.build do |outp|
theme.styles.each do |token, style|
outp << ".#{get_css_class(token, theme)} {"
outp << ".#{get_css_class(token)} {"
# These are set or nil
outp << "color: ##{style.color.try &.hex};" if style.color
outp << "background-color: ##{style.background.try &.hex};" if style.background
@ -87,7 +103,7 @@ module Tartrazine
end
# Given a token type, return the CSS class to use.
def get_css_class(token, theme)
def get_css_class(token : String) : String
return class_prefix + Abbreviations[token] if theme.styles.has_key?(token)
# Themes don't contain information for each specific
@ -99,6 +115,7 @@ module Tartrazine
}]
end
# Is this line in the highlighted ranges?
def highlighted?(line : Int) : Bool
highlight_lines.any?(&.includes?(line))
end