Adding first HW to repo. (#7)

* Create README.md

* Initial commit

* Initial commit

* Create README.md

* Rename homework/81281/c2html.pl to homework/81281/c2html/c2html.pl

* Rename homework/81281/test.c to homework/81281/c2html/test.c

* Update README.md

* Update README.md

* Update c2html.pl

* Update c2html.pl

* Update c2html.pl

* Update README.md

* Update c2html.pl

* Update test.c

* Create executeProgram.sh

* Update README.md

5 files changed, 478 insertions, 0 deletions

diff --git a/homework/81281/README.md b/homework/81281/README.md
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+# Homework repo
diff --git a/homework/81281/c2html/README.md b/homework/81281/c2html/README.md
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+# Homework 1
+Create a xxx2html syntax highlighter for a language of your choice.
+
+### How to install and use SWI-Prolog
+
++ [How to install SWI-Prolog](https://wwu-pi.github.io/tutorials/lectures/lsp/010_install_swi_prolog.html)
+
++ [Quick start on how to use it](http://www.swi-prolog.org/pldoc/man?section=quickstart)
+
++ [Command line options](http://www.swi-prolog.org/pldoc/man?section=cmdline)
+
+### Added bash script for executing program after successful installation of SWI-Prolog on a Unix or Unix-like variants
+[Script](./executeProgram.sh)
+
+### If you are going to install SWI-Prolog on Windows 
++ You can omit lines 4 to 16 from c2html.pl.
++ Afterward in order to execute the program you can call the main predicate and give it a valid string name of file.
+
+For example **main("test.c").**
+
+### For the curious who want to find about DCG Grammar rules :
+
++ [SWI-Prolog/DCG](http://www.swi-prolog.org/pldoc/man?section=DCG)
+
++ [Wikibooks](https://en.wikibooks.org/wiki/Prolog/Definite_Clause_Grammars)
+
++ [A tutorial](http://www.pathwayslms.com/swipltuts/dcg/)
diff --git a/homework/81281/c2html/c2html.pl b/homework/81281/c2html/c2html.pl
new file mode 100644
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+++ b/homework/81281/c2html/c2html.pl
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+:- use_module(library(dcg/basics)).
+:- use_module(library(readutil)).
+
+:- set_prolog_flag(verbose, silent).
+
+:- initialization(main, main).
+
+main :-
+    current_prolog_flag(argv, Argv),
+    Argv = [H|_],
+    atom_string(H, File),
+    mainy(File),
+    format('You can see the result in the html file.~n'),
+    halt.
+main :-
+    halt(1).
+
+mainy(File):-
+    open(File, read, RFile),
+    read_stream_to_codes(RFile, CSource),
+    close(RFile),
+    phrase(tokens(Tokens), CSource),
+%%    write(Tokens),
+    open('page.html', write, WFile),
+    write(WFile,"<!doctype>
+    <html>
+    <head>
+        <title>hello.c</title>
+        <style>
+           .keyword {
+               color: blue;
+           }
+           .number {
+               color: violet;
+           }
+           .identifier {
+               color: green;
+           }
+           .operator {
+               font-style: bold;
+               color: blue;
+           }
+           .comment {
+               color: lime;
+           }
+           .string {
+               color: orange;
+           }
+           .parenthese {
+               font-style: bold;
+               color: brown;
+           }
+           .quotation {
+               font-style: bold;
+               color: black;
+           }
+           .function {
+               color: purple;
+           }
+       </style>
+    </head>
+    <body>
+        <pre class=\"code\">"),
+    tohtmlfile(WFile,Tokens),
+    close(WFile).
+
+%% Definitions of tokens
+token([tauto, "auto" ]) --> "auto", !.
+token([tbreak, "break" ]) --> "break", !.
+token([tcase, "case" ]) --> "case", !.
+token([tchar, "char" ]) --> "char", !.
+token([tconst, "const" ]) --> "const", !.
+token([tcontinue, "continue" ]) --> "continue", !.
+token([tdefault, "default" ]) --> "default", !.
+token([tdo, "do" ]) --> "do", !.
+token([tdouble, "double" ]) --> "double", !.
+token([telse, "else" ]) --> "else", !.
+token([tenum, "enum" ]) --> "enum", !.
+token([textern, "extern" ]) --> "extern", !.
+token([tfloat, "float" ]) --> "float", !.
+token([tfor, "for" ]) --> "for", !.
+token([tgoto, "goto" ]) --> "goto", !.
+token([tif, "if" ]) --> "if", !.
+token([tint, "int" ]) --> "int", !.
+token([tlong, "long" ]) --> "long", !.
+token([tregister, "register" ]) --> "register", !.
+token([treturn, "return" ]) --> "return", !.
+token([tshort, "short" ]) --> "short", !.
+token([tsigned, "signed" ]) --> "signed", !.
+token([tsizeof, "sizeof" ]) --> "sizeof", !.
+token([tstatic, "static" ]) --> "static", !.
+token([tstruct, "struct" ]) --> "struct", !.
+token([tswitch,  "switch"]) --> "switch", !.
+token([ttypedef, "switch" ]) --> "typedef", !.
+token([tunion, "union" ]) --> "union", !.
+token([tunsigned, "unsigned" ]) --> "unsigned", !.
+token([tvoid, "void" ]) --> "void", !.
+token([tvolatile, "volatile" ]) --> "volatile", !.
+token([twhile, "while" ]) --> "while", !.
+token([tinclude, "#include" ]) --> "#include", !.
+
+token([tcomment1, IA]) --> comment1(I), !,
+    {atom_chars(IA,I)}.
+
+%% Handling windows written files with "\r\n"
+token([[tcomment2, IA], [execNL, '\n']]) --> comment2(I), !,
+    {append(I1, [C1, C2], I),
+    ((char_code('\r', C1), char_code('\n', C2), atom_chars(IA,I1));
+    (\+ char_code('\r', C1), char_code('\n', C2),
+    append(I1, [C1], I2), atom_chars(IA,I2)))}.
+
+token([ttypesPrintF, IA]) --> prFT(I), !,
+    {atom_chars(IA,I)}.
+token([tstring, IA]) --> stringy(I), !,
+    {atom_chars(IA,I)}.
+token([theader, IA]) --> header(I), !,
+    {append(IO, [_], I), append([_], II, IO), atom_chars(IA,II)}.
+token([[tfunction, IA], [tleftParen, "("]]) --> func(I), !,
+    {append(IO, [_], I), IO \= [], atom_chars(IA, IO)}.
+
+token([tmultiply, "*"]) --> "*", !.
+token([tdivide, "/"]) --> "/", !.
+token([tmod, "%"]) --> "%", !.
+token([tadd, "+"]) --> "+", !.
+token([tsubtract, "-"]) --> "-", !.
+token([tless, "<"]) --> "<", !.
+token([tlessEqual, "<="]) --> "<=", !.
+token([tgreater, ">"]) --> ">", !.
+token([tgreaterEqual,">=" ]) --> ">=", !.
+token([tequal, "=="]) --> "==", !.
+token([tnotequal,"!=" ]) --> "!=", !.
+token([tnot, "!"]) --> "!", !.
+token([tassign,"="]) --> "=", !.
+token([tlogicalAnd, "&&"]) --> "&&", !.
+token([tlogicalOr, "||"]) --> "||", !.
+token([tbitwiseAnd, "&"]) --> "&", !.
+token([tbitwiseOr, "|"]) --> "|", !.
+
+token([tspace , " "]) --> "\s", !.
+token([ttab , "\t"]) --> "\t", !.
+token([execTAB , "\\t"]) --> "\\t", !.
+token([execNL, "\n"]) --> ( "\n"; "\r\n"), !.
+token([tnl, "\\n"]) --> "\\n", !.
+
+token([tleftParen,"("]) --> "(", !.
+token([trightParen, ")"]) --> ")", !.
+token([tleftBrace, "{"]) --> "{", !.
+token([trightBrace, "}"]) --> "}", !.
+token([tleftSqParen, "["]) --> "[", !.
+token([trightSqParen, "]" ]) --> "]", !.
+token([tsemicolon, ";"]) --> ";", !.
+token([ttwodots, ":"]) --> ":", !.
+token([tquestion, "?"]) --> "?", !.
+
+token([tcomma, "," ]) --> ",", !.
+token([tquot, "\'"]) --> "\'", !.
+token([tdoubleQuot, "\""]) --> "\"", !.
+token([tdot, "."]) --> ".", !.
+
+token([tidentifier, IA]) -->  identifier(I), !,
+    {atom_chars(IA,I)}.
+token([tnumber, I]) --> number(I), !.
+
+token([tunknown, IA]) --> allThatIsNotAToken(I), !,
+    {I \= [], atom_chars(IA, I)}.
+
+
+%% Main predicate
+tokens([Token | Tail]) --> token(Token), !, tokens(Tail).
+tokens([]) --> !, [], !.
+
+
+%% Helper predicates
+identifier([C|Cs]) --> [C], {char_type(C, csymf)}, !,
+    identifierHelper(Cs).
+
+identifierHelper([C|Cs]) --> [C], {char_type(C, csym)}, !,
+    identifierHelper(Cs).
+identifierHelper([C]) --> [C], {char_type(C, csym), \+ char_code('_', C)}, !.
+identifierHelper([]) --> [], !.
+
+func([C|Cs]) --> [C], {char_type(C, csymf)}, !,
+    funkHelper(Cs).
+
+funkHelper([C|Cs]) --> [C], {char_type(C, csym)}, !,
+    funkHelper(Cs).
+funkHelper([C]) --> [C], {char_code("(", C)}, !.
+
+stringy([C|Cs]) --> [C], {char_code('\"', C)}, !,
+    stringyHelper(Cs).
+
+stringyHelper([C|Cs]) --> [C], {char_type(C, csymf); char_code('.', C)},
+    stringyHelper(Cs).
+stringyHelper([C]) --> [C], {char_code('\"', C)}.
+
+header([C|Cs]) --> [C], {char_code('<', C)}, !,
+    hederHelper(Cs).
+
+hederHelper([C|Cs]) --> [C],
+    {char_type(C, csymf); char_code('.', C); char_code('/', C); char_code('+', C)},
+    hederHelper(Cs).
+hederHelper([C]) --> [C], {char_code('>', C)}.
+
+prFT([C|Cs]) --> [C], {char_code('%', C)}, !,
+    pr(Cs).
+
+pr([C]) --> [C], {char_type(C, csym)}.
+
+comment1([C1,C2|Cs]) --> [C1,C2], {char_code('/', C1), char_code('*', C2)}, !,
+    anything(Cs),
+    {append(_,[C3,C4],Cs), char_code('*', C3), char_code('/', C4)}.
+
+comment2([C1,C2|Cs]) --> [C1,C2], {char_code('/', C1), char_code('/', C2)}, !,
+    anytingButNL(Cs).
+
+anything([C|Cs]) --> [C], anything(Cs).
+anything([]) --> [].
+
+allThatIsNotAToken([C|Cs]) --> [C|Cs], \+ tokens(C), \+ tokens([C|Cs]),
+    allThatIsNotAToken(Cs).
+allThatIsNotAToken([]) --> [].
+
+anytingButNL([C|Cs]) --> [C],
+    {\+ char_code('\r', C), \+ char_code('\n', C)}, anytingButNL(Cs).
+anytingButNL([C1,C2|_]) --> [C1,C2],
+    {(char_code('\r', C1),  char_code('\n', C2));
+    (\+ char_code('\r', C1),  char_code('\n', C2))}.
+
+
+%% Definitions of lists of different types of tokens
+is_keyWord([H,_]):- member(H, [tauto, tbreak, tcase, tchar, tconst, tcontinue,
+    tdefault, tdo, tdouble, telse, tenum, textern, tfloat, tfor, tgoto, tif,
+    tint, tlong, tregister, treturn, tshort, tsigned, tsizeof, tstatic, tstruct,
+    tswitch, ttypedef, tunion, tunsigned, twhile, tvoid, tvolatile, tinclude]).
+
+is_operator([H,_]):- member(H, [tmultiply, tdivide, tmod, tadd, tsubtract, tless,
+    tlessEqual, tgreater, tgreaterEqual, tequal, tnotequal, tnot, tassign, tlogicalOr,
+    tlogicalAnd, tbitwiseOr, tbitwiseAnd]).
+
+is_parenth([H,_]):- member(H, [tleftParen, trightParen, tleftBrace, trightBrace,
+    tleftSqParen, trightSqParen, tsemicolon, ttwodots]).
+
+is_quotation([H,_]):- member(H, [tquot, tdoubleQuot, tcomma, tdot, tquestion]).
+
+is_unknown([H,_]):- member(H, [tunknown]).
+
+is_number([H,_]):- member(H, [tnumber, ttypesPrintF]).
+
+is_function([[H,_],_]):- member(H, [tfunction]).
+
+is_identifier([H,_]):- member(H, [tidentifier, tnl, ttab]).
+
+is_blank([H,_]):- member(H, [execTAB, tspace, execNL]).
+
+is_comment1([H,_]):-member(H, [tcomment1]).
+
+is_comment2([[H,_],_]):-member(H, [tcomment2]).
+
+is_string([H,_]):-  member(H, [tstring]).
+
+is_header([H,_]):- member(H, [theader]).
+
+
+%% Writing to html file the stream of tokens
+tohtmlfile(Stream, []):- !, write(Stream, '</pre></body></html>'), !.
+
+tohtmlfile(Stream, [H|T]) :- is_identifier(H), H = [_,Lexem],
+    write(Stream, '<span class=\"identifier\">'),
+    write(Stream, Lexem),
+    write(Stream,'</span>'),
+    !,
+    tohtmlfile(Stream, T).
+
+tohtmlfile(Stream, [H|T]) :- is_string(H), H = [_,Lexem],
+    write(Stream, '<span class=\"string\">'),
+    write(Stream, Lexem),
+    write(Stream,'</span>'),
+    !,
+    tohtmlfile(Stream, T).
+
+tohtmlfile(Stream, [H|T]) :- is_function(H), H = [[_, Lexem1],[_,Lexem2]],
+    write(Stream, '<span class=\"function\">'),
+    write(Stream, Lexem1),
+    write(Stream,'</span>'),
+    write(Stream, '<span class=\"parenthese\">'),
+    write(Stream, Lexem2),
+    write(Stream,'</span>'),
+    !,
+    tohtmlfile(Stream, T).
+
+tohtmlfile(Stream, [H|T]) :- is_header(H), H = [_,Lexem],
+    write(Stream, '<span class=\"string\">&lt;'),
+    write(Stream, Lexem),
+    write(Stream,'&gt;</span>'),
+    !,
+    tohtmlfile(Stream, T).
+
+tohtmlfile(Stream, [H|T]) :- is_keyWord(H), H = [_,Lexem],
+    write(Stream, '<span class=\"keyword\">'),
+    write(Stream, Lexem),
+    write(Stream,'</span>'),
+    !,
+    tohtmlfile(Stream, T).
+
+tohtmlfile(Stream, [H|T]) :- is_number(H), H = [_,Lexem],
+    write(Stream, '<span class=\"number\">'),
+    write(Stream, Lexem),
+    write(Stream,'</span>'),
+    !,
+    tohtmlfile(Stream, T).
+
+tohtmlfile(Stream, [H|T]) :- is_operator(H), H = [_,Lexem],
+    write(Stream, '<span class=\"operator\">'),
+    write(Stream, Lexem),
+    write(Stream,'</span>'),
+    !,
+    tohtmlfile(Stream, T).
+
+tohtmlfile(Stream, [H|T]) :- is_parenth(H), H = [_,Lexem],
+    write(Stream, '<span class=\"parenthese\">'),
+    write(Stream, Lexem),
+    write(Stream,'</span>'),
+    !,
+    tohtmlfile(Stream, T).
+
+tohtmlfile(Stream, [H|T]) :- (is_quotation(H); is_unknown(H)), H = [_,Lexem],
+    write(Stream, '<span class=\"quotation\">'),
+    write(Stream, Lexem),
+    write(Stream,'</span>'),
+    !,
+    tohtmlfile(Stream, T).
+
+tohtmlfile(Stream, [H|T]) :- is_comment1(H), H = [_,Lexem],
+    write(Stream, '<span class=\"comment\">'),
+    write(Stream, Lexem),
+    write(Stream,'</span>'),
+    !,
+    tohtmlfile(Stream, T).
+
+tohtmlfile(Stream, [H|T]) :- is_comment2(H), H = [[_, Lexem1],[_,Lexem2]],
+    write(Stream, '<span class=\"comment\">'),
+    write(Stream, Lexem1),
+    write(Stream,'</span>'),
+    write(Stream, Lexem2),
+    !,
+    tohtmlfile(Stream, T).
+
+tohtmlfile(Stream, [H|T]) :- is_blank(H), H = [_,Lexem],
+    write(Stream, Lexem),
+    !,
+    tohtmlfile(Stream, T).
diff --git a/homework/81281/c2html/executeProgram.sh b/homework/81281/c2html/executeProgram.sh
new file mode 100644
index 0000000..bc02714
--- /dev/null
+++ b/homework/81281/c2html/executeProgram.sh
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+echo -n "Please enter the name of the C file you wish to highlight:"
+read fileName
+echo $fileName
+if ! [[ $fileName == *.c\n ]]; then
+    base=`pwd`"/c2html.pl"
+    PL=swipl
+    exec $PL -q -f "$base" "$fileName"
+else
+    echo "Not a correct C filename!"
+fi
diff --git a/homework/81281/c2html/test.c b/homework/81281/c2html/test.c
new file mode 100644
index 0000000..7176890
--- /dev/null
+++ b/homework/81281/c2html/test.c
@@ -0,0 +1,87 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+int N = 0;
+int a[750001] = {0};
+/*Problem Secrect DAA*/
+//// mauuu
+
+void swap(int* i, int* j)
+{
+    int t = *i;
+    *i = *j;
+    *j = t;
+}
+
+int partition(int l, int r)
+{
+    int randIdx = l + rand() % (r - l);
+
+    int pivot = a[randIdx];
+
+    swap(&a[l], &a[randIdx]);
+    int ind = l;
+
+    for (int i = l + 1; i < r; ++i)
+    {
+        if (a[i] <= pivot)
+        {
+            ind++;
+            swap(&a[i], &a[ind]);
+        }
+    }
+
+    swap(&a[l], &a[ind]);
+    return ind;
+}
+
+void quickSort(int l, int r)
+{
+    if (l < r)
+    {
+        int idx = partition(l, r);
+        quickSort(l, idx);
+        quickSort(idx + 1, r);
+    }
+}
+
+int binarySearch(int k)
+{
+    int middle, left = 0, right = N - 1;
+    if (k < a[left])
+        return (-1);
+    if (k == a[left])
+        return (left + 1);
+    if (k > a[right])
+        return (-1);
+
+    while (right - left > 1)
+    {
+        middle = (left + right) / 2;
+        if (k <= a[middle])
+            right = middle;
+        else
+            left = middle;
+    }
+    return ((right <= N - 1 && a[right] == k) ? (right + 1) : (-1));
+}
+
+int main()
+{
+    srand(time(0));
+    scanf("%d", &N);
+    for (int i = 0; i < N; ++i)
+    {
+        scanf("%d ", &a[i]);
+    }
+    quickSort(0, N);
+
+    int tmp = 0;
+    scanf("%d", &tmp);
+    while (tmp != 0)
+    {
+        printf("%d\n", binarySearch(tmp));
+        scanf("%d", &tmp);
+    }
+    return 0;
+}