361 lines
8.2 KiB
C
361 lines
8.2 KiB
C
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/*
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CopyRight (C) 1999, Dmitry Obukhov, dso@usa.net
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mailto: dso@usa.net
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http://www.EmbeddedStuff.com
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----------------------------------------------
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Last modified 6 Apr 97
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----------------------------------------------
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Converts C (C++) source to HTML code fragment
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with syntax highlighting.
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Since program written for personal purpose
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the <TABLE> tags generated. This is optional
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page format specific thing.
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Usage: CTHM <input_file>. All output is done
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to STDOUTPUT, error messages to STDERR.
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For HTML fragment generation:
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CHTM file.c > file.htm
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- Some input convertion required to use this
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code as CGI module. Will be done soon.
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- Optimization required for blocks of EOL
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comments
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*/
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#include <stdio.h>
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// ------------------- Decoding status values
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#define START 0
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#define INLINE 1
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#define DEFINE 2
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// ------------------- Decoding Remark
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#define REM1 20
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#define REM2 21
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#define REM_END 22
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#define REM_STAR 23
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#define REM_STAR_1 24
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#define STRING 25 // String is "like" remark
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// ------------------- HTML TAG Generation
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#define ON 1
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#define OFF 0
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// ------------------- HTML TAG type
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#define MODE_KEYWORD 0
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#define MODE_REMARK 2
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#define MODE_REMARK_EOL 4
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#define MODE_DEFINE 6
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#define MODE_STRING 8
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int is_delimeter(char c)
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{
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int ii=0;
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char dlms[] =
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"\t\r\n (){}[]+-*/%\"'&|^~:;<>.,";
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//--------------------------------
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while (dlms[ii])
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{
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if (c==dlms[ii++]) return 1;
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}
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return 0;
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}
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int is_keyword(char * str)
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{
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char * kwords[] =
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{
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"asm", "auto",
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"break", "case",
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"cdecl", "char",
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"class", "const",
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"continue", "default",
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"delete", "do",
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"double", "else",
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"enum", "extern",
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"far", "float",
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"for", "friend",
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"goto", "huge",
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"if", "inline",
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"int", "interrupt",
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"long", "near",
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"new", "operator",
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"pascal", "private",
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"protected", "public",
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"register", "return",
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"short", "signed",
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"sizeof", "static",
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"struct", "switch",
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"template", "this",
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"typedef", "union",
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"unsigned", "virtual",
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"void", "volatile",
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"while", NULL
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};
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int ii=0;
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int jj;
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int check;
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while (kwords[ii])
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{
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jj = 0;
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check = 1;
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while (kwords[ii][jj] && check)
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{
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if (str[jj] != kwords[ii][jj])
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{
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check = 0;
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}
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jj++;
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}
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if (check) return 1;
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ii++;
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}
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return 0;
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}
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void set_mode(int on_off, int mode)
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{
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char * tags[] =
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{
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//-------------------- KEYWORD
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"<strong>",
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"</strong>",
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//-------------------- Classic remarks
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"<font color=\"#336600\">",
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"</font>",
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//-------------------- EOL Remarks
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"<font color=\"#336600\">",
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"</font>",
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//-------------------- #DEFINE
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"<font color=\"#663300\"><strong>",
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"</strong></font>",
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//-------------------- "string"
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"<font color=\"#0000CC\">",
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"</font>",
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NULL, NULL
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};
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fprintf(stdout,tags[mode + 1 - on_off]);
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}
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void print_char_html(char c)
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{
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switch (c)
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{
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case '<':
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fprintf(stdout,"<");
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break;
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case '>':
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fprintf(stdout,">");
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break;
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case '"':
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fprintf(stdout,""");
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break;
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case '&':
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fprintf(stdout,"&");
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break;
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case '|':
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fprintf(stdout,"¦");
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break;
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default:
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fprintf(stdout,"%c",c);
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}
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}
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int main(int _argc, char** _argv)
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{
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FILE *in, *out;
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char c;
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int mode;
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char buf[80];
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int bufidx = 0;
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int progress = 1;
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int echo;
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int saved_mode;
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int kw;
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char tmpc;
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char prevc;
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if (_argc < 2)
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{
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fprintf(stderr,
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"USAGE: c2html <file>\n");
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return 1;
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}
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if ((in = fopen(_argv[1], "rt")) == NULL)
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{
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fprintf(stderr,
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"Cannot open input file.\n");
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return 1;
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}
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fprintf(stdout, "<pre>");
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mode = START;
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while (!feof(in) && progress)
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{
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echo = 1;
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prevc = c;
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c = fgetc(in);
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if (c=='/' && (mode < REM1))
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{
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saved_mode = mode;
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mode = REM1;
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}
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switch (mode)
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{
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case REM1:
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echo = 0;
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mode = REM2;
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break;
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case REM2:
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if (c=='/')
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{
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if (saved_mode == DEFINE)
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{
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set_mode(OFF, MODE_DEFINE);
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}
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mode = REM_END;
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set_mode(ON, MODE_REMARK_EOL);
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}
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else if (c=='*')
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{
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if (saved_mode == DEFINE)
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{
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set_mode(OFF, MODE_DEFINE);
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}
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mode = REM_STAR;
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set_mode(ON, MODE_REMARK);
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}
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else
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{
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mode = saved_mode;
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}
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printf("/");
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break;
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case REM_END:
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if (c=='\n')
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{
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set_mode(OFF, MODE_REMARK_EOL);
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}
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break;
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case REM_STAR:
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if (c=='*')
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{
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mode = REM_STAR_1;
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}
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break;
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case REM_STAR_1:
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if (c=='/')
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{
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mode = INLINE;
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fprintf(stdout,"/");
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echo = 0;
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set_mode(OFF, MODE_REMARK);
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}
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else mode = REM_STAR;
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break;
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case START:
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if (c=='#')
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{
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mode = DEFINE;
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set_mode(ON, MODE_DEFINE);
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break;
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}
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else if (c==' ') break;
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mode = INLINE;
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// and continue in next case
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case INLINE:
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if (c=='"' && //
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prevc != 0x27 && //
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prevc != '\\') //
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{
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set_mode(ON, MODE_STRING);
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mode = STRING;
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}
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break;
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case STRING:
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if (c=='"' && prevc != '\\')
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{
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print_char_html('"');
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set_mode(OFF, MODE_STRING);
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echo = 0;
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mode = INLINE;
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}
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break;
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case DEFINE:
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if (c=='\n')
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{
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set_mode(OFF, MODE_DEFINE);
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}
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break;
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}
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if (echo && //
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(mode == INLINE || //
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(mode!=INLINE && //
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bufidx))) //
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{
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buf[bufidx++] = c;
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buf[bufidx] = 0;
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if (is_delimeter(c))
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{
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kw = 0;
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if (bufidx>2)
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{
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kw = is_keyword(buf);
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}
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if (kw)
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{
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set_mode(ON, MODE_KEYWORD);
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}
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tmpc = buf[bufidx-1];
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buf[bufidx-1] = 0;
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fprintf(stdout,"%s",buf);
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if (kw)
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{
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set_mode(OFF, MODE_KEYWORD);
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}
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print_char_html(tmpc);
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bufidx = 0;
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buf[0] = 0;
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}
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}
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else if (echo) print_char_html(c);
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if (c=='\n' && mode != REM_STAR)
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{
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mode = START;
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}
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}
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fclose(in);
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fprintf(stdout,"</pre>\n");
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fprintf(stdout,
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"<!-- == Generated by CHTM convertor -->\n");
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fprintf(stdout,
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"<!-- == CopyRight (C) 1999, Dmitry Obukhov, dso@usa.net -->\n");
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return 0;
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}
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