implement the second homework assignment (#39)

* Rust syntax highlighter: fix some issues with the implementation of the first homework assignment

* Rust syntax highlighter: pretty-printer: implement the second homework assignment

1 files changed, 0 insertions, 115 deletions

diff --git a/homework/81030/rust2html.flex b/homework/81030/rust2html.flex
deleted file mode 100644
index 6684d82..0000000
--- a/homework/81030/rust2html.flex
+++ /dev/null
@@ -1,115 +0,0 @@
-/* scanner for the Rust programming language */
-
-%{
-#define YY_NO_UNISTD_H
-%}
-
-NONEOL_CHAR        [^\n]
-DEC_DIGIT          0|{NONZERO_DEC_DIGIT}
-NONZERO_DEC_DIGIT  [1-9]
-OCT_DIGIT          [0-7]
-HEX_DIGIT          {DEC_DIGIT}|[a-fA-F]
-
-IDENTIFIER             {IDENTIFIER_FIRST_CHAR}({DEC_DIGIT}|{IDENTIFIER_FIRST_CHAR})*
-IDENTIFIER_FIRST_CHAR  [A-Za-z_]
-
-COMMENT        {BLOCK_COMMENT}|{LINE_COMMENT}
-BLOCK_COMMENT  "/*".*"*/"
-LINE_COMMENT   "//"{NONEOL_CHAR}*
-
-KEYWORD  _|abstract|alignof|as|become|box|break|const|continue|crate|do|else|enum|extern|false|final|fn|for|if|impl|in|let|loop|macro|match|mod|move|mut|offsetof|override|priv|proc|pub|pure|ref|return|Self|self|sizeof|static|struct|super|trait|true|type|typeof|unsafe|unsized|use|virtual|where|while|yield
-
-ESCAPE          {COMMON_ESCAPE}|{UNICODE_ESCAPE}
-COMMON_ESCAPE   \\|n|r|t|0|x{HEX_DIGIT}{2}
-UNICODE_ESCAPE  "u{"{HEX_DIGIT}{6}"}"
-
-CHAR_LITERAL         '{CHAR_BODY}'
-CHAR_BODY            [^']|(\\('|{ESCAPE}))
-STRING_LITERAL       \"{STRING_BODY}*\"
-STRING_BODY          [^\"]|(\\(\"|{ESCAPE}))
-BYTE_CHAR_LITERAL    b'{BYTE_CHAR_BODY}'
-BYTE_CHAR_BODY       [^']|(\\('|{COMMON_ESCAPE}))
-BYTE_STRING_LITERAL  b\"{BYTE_STRING_BODY}*\"
-BYTE_STRING_BODY     [^\"]|(\\(\"|{ESCAPE}))
-
-NUMBER_LITERAL     {NONZERO_DEC_DIGIT}{DEC_DIGIT}*{FLOAT_SUFFIX}?|(0{DEC_DIGIT_LITERAL}*{FLOAT_SUFFIX}?|b[10_]+|o{OCT_DIGIT_LITERAL}+|x{HEX_DIGIT_LITERAL}+)
-FLOAT_SUFFIX       {EXPONENT}|"."{DEC_DIGIT_LITERAL}+{EXPONENT}?
-EXPONENT           [Ee][-+]?{DEC_DIGIT_LITERAL}+
-DEC_DIGIT_LITERAL  {DEC_DIGIT}|_
-HEX_DIGIT_LITERAL  {HEX_DIGIT}|_
-OCT_DIGIT_LITERAL  {OCT_DIGIT}|_
-
-SYMBOL  "::"|"->"|"#"|"["|"]"|"("|")"|"{"|"}"|","|";"
-
-%%
-
-{SYMBOL} {
-    printf("<span class=\"symbol\">%s</span>", yytext);
-}
-
-{KEYWORD} {
-    printf("<span class=\"keyword\">%s</span>", yytext);
-}
-
-{NUMBER_LITERAL} {
-    printf("<span class=\"number\">%s</span>", yytext);
-}
-
-{IDENTIFIER} {
-    printf("<span class=\"identifier\">%s</span>", yytext);
-}
-
-{CHAR_LITERAL}|{STRING_LITERAL}|{BYTE_CHAR_LITERAL}|{BYTE_STRING_LITERAL} {
-    printf("<span class=\"string\">%s</span>", yytext);
-}
-
-{COMMENT} {
-    printf("<span class=\"comment\">%s</span>", yytext);
-}
-
-. {
-    printf("%s", yytext);  /* echo the rest */
-}
-
-%%
-
-int yywrap() {
-    return 1;
-}
-
-int main(int argc, const char* argv[]) {
-    yyin = argc > 1 ? fopen(argv[1], "r") : stdin;
-
-    puts(
-        "<!DOCTYPE html>"
-        "<html>"
-        "<head>"
-        "    <style>"
-        "        .comment {"
-        "            color: gray;"
-        "        }"
-        "        .keyword {"
-        "            color: red;"
-        "        }"
-        "        .string {"
-        "            color: green;"
-        "        }"
-        "        .number {"
-        "            color: blue;"
-        "        }"
-        "        .symbol {"
-        "            font-weight: bold;"
-        "        }"
-        "    </style>"
-        "</head>"
-        "<body>"
-        "    <pre class=\"code\">"
-    );
-    yylex();
-    puts(
-        "    </pre>"
-        "</body>"
-        "</html>");
-
-    return 0;
-}