Refactor things into separate files for easier reading

2025-07-04 15:29:25 +00:00 · 2024-08-09 11:31:18 -03:00
parent a0ff4e0118
commit 47237eecc3
6 changed files with 277 additions and 270 deletions
--- a/src/formatters/html.cr
+++ b/src/formatters/html.cr
@ -0,0 +1,59 @@
+require "../formatter"
+
+module Tartrazine
+    class Html < Formatter
+        def format(text : String, lexer : Lexer, theme : Theme) : String
+          output = String.build do |outp|
+            outp << "<html><head><style>"
+            outp << get_style_defs(theme)
+            outp << "</style></head><body>"
+            outp << "<pre class=\"#{get_css_class("Background", theme)}\"><code class=\"#{get_css_class("Background", theme)}\">"
+            lexer.tokenize(text).each do |token|
+              fragment = "<span class=\"#{get_css_class(token[:type], theme)}\">#{token[:value]}</span>"
+              outp << fragment
+            end
+            outp << "</code></pre></body></html>"
+          end
+          output
+        end
+    
+        # ameba:disable Metrics/CyclomaticComplexity
+        def get_style_defs(theme : Theme) : String
+          output = String.build do |outp|
+            theme.styles.each do |token, style|
+              outp << ".#{get_css_class(token, theme)} {"
+              # These are set or nil
+              outp << "color: #{style.color.try &.hex};" if style.color
+              outp << "background-color: #{style.background.try &.hex};" if style.background
+              outp << "border: 1px solid #{style.border.try &.hex};" if style.border
+    
+              # These are true/false/nil
+              outp << "border: none;" if style.border == false
+              outp << "font-weight: bold;" if style.bold
+              outp << "font-weight: 400;" if style.bold == false
+              outp << "font-style: italic;" if style.italic
+              outp << "font-style: normal;" if style.italic == false
+              outp << "text-decoration: underline;" if style.underline
+              outp << "text-decoration: none;" if style.underline == false
+    
+              outp << "}"
+            end
+          end
+          output
+        end
+    
+        # Given a token type, return the CSS class to use.
+        def get_css_class(token, theme)
+          return Abbreviations[token] if theme.styles.has_key?(token)
+    
+          # Themes don't contain information for each specific
+          # token type. However, they may contain information
+          # for a parent style. Worst case, we go to the root
+          # (Background) style.
+          Abbreviations[theme.style_parents(token).reverse.find { |parent|
+            theme.styles.has_key?(parent)
+          }]
+        end
+      end
+    
+end