1 files changed, 87 insertions, 0 deletions
diff --git a/homework/81568/c2html/html_utils.cpp b/homework/81568/c2html/html_utils.cpp
new file mode 100644
index 0000000..6ca91c6
--- /dev/null
+++ b/homework/81568/c2html/html_utils.cpp
@@ -0,0 +1,87 @@
+#include "html_utils.h"
+#include "lexconst.h"
+
+namespace HTMLUtils {
+
+std::string escapeHTML(const std::string &lexeme) {
+  std::string result;
+  for (auto c : lexeme) {
+    switch(c) {
+    case '<':
+      result.append("&lt");
+      break;
+    case '>':
+      result.append("&gt");
+      break;
+    case '&':
+      result.append("&amp");
+      break;
+    default:
+      result.push_back(c);
+      break;
+    }
+  }
+  return result;
+}
+  
+bool writeToOutput(FILE *out, Token token) {
+  if (token.type == TokenClass::Eof) {
+    printf("End of file!\n");
+    fputc('\n', out);
+    return false;
+  }
+
+  if (token.type == TokenClass::Skip) {
+    if (fputs(token.lexeme.c_str(), out) == EOF) {
+      printf("Error while writing to output");
+      return false;
+    }
+    return true;
+  }
+  
+  printf("Token of type %s at line %d: ", LexCer::tokenToClass.at(token.type).c_str(), token.line);
+  if (token.type == TokenClass::Number)
+    printf("%f\n", token.number);
+  else
+    printf("%s\n", token.lexeme.c_str());
+
+  auto lexeme = escapeHTML(token.lexeme);
+  
+  std::string output;
+  output.append(LexCer::spanBegin).append(LexCer::tokenToClass.at(token.type)).append("\">").append(lexeme).append(LexCer::spanEnd);
+  
+  if (fputs(output.c_str(), out) == EOF) {
+    printf("Error while writing to output");
+    return false;
+  }
+  return true;
+}
+  
+std::string getOutputFileName(const std::string &name) {
+  auto pos = name.find_last_of('.');
+  if (pos == std::string::npos) {
+    return name + ".html";
+  }
+  
+  return name.substr(0, pos) + ".html";
+}
+
+void lexCit(FILE *in, FILE *out) {
+  Tokenizer hl {in, out};
+ 
+  std::string lexeme;
+  double number;
+  TokenClass type;
+  Token token;
+  do {
+    token = hl.nextToken(&lexeme, &number);
+    type = token.type;
+    
+    if (!writeToOutput(out, token))
+      break;
+    lexeme = "";
+    number = 0.0;
+  } while(type != TokenClass::Eof || type != TokenClass::Invalid);
+}
+
+} /* Namespace HTMLUtils */