Mercurial > hg > c2html / changeset

     1.1 --- a/src/c2html.c	Wed Jun 12 13:40:23 2013 +0200
     1.2 +++ b/src/c2html.c	Wed Jun 12 14:48:50 2013 +0200
     1.3 @@ -35,6 +35,14 @@
     1.4  #include <ctype.h>
     1.5  
     1.6  #define INPUTBUF_SIZE 2048
     1.7 +#define WORDBUF_SIZE 16
     1.8 +
     1.9 +const char* keywords[] = {
    1.10 +  "auto", "break", "case", "char", "const", "continue", "default", "do", 
    1.11 +  "double", "else", "enum", "extern", "float", "for", "goto", "if", "int", 
    1.12 +  "long", "register", "return", "short", "signed", "sizeof", "static", "struct", 
    1.13 +  "switch", "typedef", "union", "unsigned", "void", "volatile", "while", NULL
    1.14 +};
    1.15  
    1.16  
    1.17  typedef struct {
    1.18 @@ -98,6 +106,7 @@
    1.19        }
    1.20  
    1.21        if (buf[i] == '\n') {
    1.22 +        line[col++] = '\n';
    1.23          line[col] = 0;
    1.24          addline(inputfile, line, col);        
    1.25          col = 0;
    1.26 @@ -114,24 +123,80 @@
    1.27    return inputfile;
    1.28  }
    1.29  
    1.30 +size_t writeescapedchar(char *dest, size_t dp, char c) {
    1.31 +  if (c == '>') {
    1.32 +    dest[dp++] = '&'; dest[dp++] = 'g';
    1.33 +    dest[dp++] = 't'; dest[dp++] = ';';
    1.34 +  } else if (c == '<') {
    1.35 +    dest[dp++] = '&'; dest[dp++] = 'l';
    1.36 +    dest[dp++] = 't'; dest[dp++] = ';';
    1.37 +  } else {
    1.38 +    dest[dp++] = c;
    1.39 +  }
    1.40 +  
    1.41 +  return dp;
    1.42 +}
    1.43 +
    1.44 +int iskeyword(char *word) {
    1.45 +  for (int i = 0 ; keywords[i] ; i++) {
    1.46 +    if (strncmp(keywords[i], word, WORDBUF_SIZE) == 0) {
    1.47 +      return 1;
    1.48 +    }
    1.49 +  }
    1.50 +  return 0;
    1.51 +}
    1.52 +
    1.53 +#define istype(word, len) (word[len-2] == '_' && word[len-1] == 't')
    1.54 +
    1.55  void parseline(char *src, char *dest) {
    1.56    size_t sp = 0, dp = 0;
    1.57    /* indent */
    1.58    while (isspace(src[sp])) {
    1.59      dest[dp++] = src[sp++];
    1.60    }
    1.61 +  char word[WORDBUF_SIZE];
    1.62 +  memset(word, 0, WORDBUF_SIZE);
    1.63 +  size_t wp = 0;
    1.64 +  int closespan;
    1.65    for (char c = src[sp] ; c ; c=src[++sp]) {
    1.66 -    switch (c) {
    1.67 -      case '<':
    1.68 -        memcpy(&(dest[dp]), "&lt;", 4);
    1.69 -        dp += 4;
    1.70 -        break;
    1.71 -      case '>':
    1.72 -        memcpy(&(dest[dp]), "&gt;", 4);
    1.73 -        dp += 4;
    1.74 -        break;
    1.75 -      default:
    1.76 -        dest[dp++] = c;
    1.77 +    if (!isalnum(c) && c != '_') {
    1.78 +      /* interpret word int_t */
    1.79 +      if (wp > 0 && wp < WORDBUF_SIZE) {
    1.80 +        if (iskeyword(word)) {
    1.81 +          memcpy(&(dest[dp]), "<span class=\"c2html-keyword\">", 29);
    1.82 +          dp += 29;
    1.83 +          closespan = 1;
    1.84 +        } else if (istype(word, wp)) {
    1.85 +          memcpy(&(dest[dp]), "<span class=\"c2html-type\">", 26);
    1.86 +          dp += 26;
    1.87 +          closespan = 1;
    1.88 +        } else {
    1.89 +          closespan = 0;
    1.90 +        }
    1.91 +        for (int i = 0 ; i < wp ; i++) {
    1.92 +          dp = writeescapedchar(dest, dp, word[i]);
    1.93 +        }
    1.94 +        if (closespan) {
    1.95 +          memcpy(&(dest[dp]), "</span>", 7);
    1.96 +          dp += 7;
    1.97 +        }
    1.98 +      }
    1.99 +      memset(word, 0, WORDBUF_SIZE);
   1.100 +      wp = 0;
   1.101 +      dp = writeescapedchar(dest, dp, c);
   1.102 +    } else {
   1.103 +      /* read word */
   1.104 +      if (wp < WORDBUF_SIZE) {
   1.105 +        word[wp++] = c;
   1.106 +      } else if (wp == WORDBUF_SIZE) {
   1.107 +        for (int i = 0 ; i < WORDBUF_SIZE ; i++) {
   1.108 +          dp = writeescapedchar(dest, dp, word[i]);
   1.109 +        }
   1.110 +        wp++;
   1.111 +        dp = writeescapedchar(dest, dp, c);
   1.112 +      } else {
   1.113 +        dp = writeescapedchar(dest, dp, c);
   1.114 +      }
   1.115      }
   1.116    }
   1.117    dest[dp] = 0;
   1.118 @@ -165,7 +230,7 @@
   1.119        int lnw = lnint(inputfile->count);
   1.120        for (int i = 0 ; i < inputfile->count ; i++) {
   1.121          parseline(inputfile->lines[i], line);
   1.122 -        printf("<span class=\"c2html-lineno\">%*d:</span> %s\n",
   1.123 +        printf("<span class=\"c2html-lineno\">%*d:</span> %s",
   1.124              lnw, i, line);
   1.125        }
   1.126        free(line);

     2.1 --- a/test/header.html	Wed Jun 12 13:40:23 2013 +0200
     2.2 +++ b/test/header.html	Wed Jun 12 14:48:50 2013 +0200
     2.3 @@ -7,6 +7,12 @@
     2.4          font-style: italic;
     2.5          color: grey;
     2.6        }
     2.7 +      span.c2html-keyword {
     2.8 +        color: blue;
     2.9 +      }
    2.10 +      span.c2html-type {
    2.11 +        color: cornflowerblue;
    2.12 +      }
    2.13      </style>
    2.14    </head>
    2.15    <body>