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PGPrintHtml.cpp
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PGPrintHtml.cpp
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#ifdef LRSTAR
#include "ComGlobal.h"
#include "PGGlobal.h"
FILE* fp;
int head_on;
/*--- HTML_GRM --------------------------------------------------------------*/
void PGPrintHtml::PrintHtml ()
{
char fid [MAX_PATH];
int line_length;
int h, p, t, s, l, nh;
head_on = 0;
strcpy (fid, gdn);
strcat (fid, gfn);
strcat (fid, gft);
strcat (fid, ".grammar.html");
if (optn[PG_HTML] == 0)
{
unlink (fid);
return;
}
fp = fopen (fid, "w");
if (fp == NULL)
{
n_errors++;
prt_log ("\nFile %s cannot be created.\n", fid);
PG::Terminate (1);
}
fprintf (fp, "<head>\n");
fprintf (fp, "<title>%s grammar.</title>\n", gfn);
fprintf (fp, "<meta name=\"description\" content=\"%s grammar.\">\n", gfn);
fprintf (fp, "<style>\n");
fprintf (fp, "a:link { color: #000000; text-decoration: none; };\n");
fprintf (fp, "a:visited { color: #000000; text-decoration: none; };\n");
fprintf (fp, "a:hover { color: #000000; text-decoration: underline; };\n");
fprintf (fp, "a:active { color: #000000; text-decoration: underline; };\n");
fprintf (fp, "</style>\n");
fprintf (fp, "</head>\n");
fprintf (fp, "<basefont face=verdana>\n");
fprintf (fp, "<body bgcolor=\"white\" text=\"black\" link=\"blue\" vlink=\"blue\" alink=\"blue\">\n");
fprintf (fp, "<pre> <b>%s</b> grammar (output from <a href=\"http://lrtec.com/\">LRSTAR</a>).\n</pre>\n", gfn);
if (optn[PG_HTML] == 0)
{
fprintf (fp, "<pre>\n 'h' option was not specified.</pre>\n");
goto Ret;
}
// NONTERMINALS.
nh = N_heads;
for (h = 0; h < nh; h++)
{
fprintf (fp, "<a name=\"%s\"><pre>", head_name[h]);
fprintf (fp, "%4d ", h);
ph_head (h, "</a>\n");
for (p = F_prod [h]; p < F_prod [h+1]; p++)
{
line_length = 16;
fprintf (fp, " %4d -> ", p);
for (t = F_tail [p]; t < F_tail [p+1]; t++)
{
s = Tail [t];
if (s >= 0) l = strlen (term_name[s]);
else l = strlen (head_name[-s]);
if (line_length > 16 && line_length + l > 100)
{
fprintf (fp, "\n ");
line_length = 16;
}
line_length += ph_sym (s, " ");
}
fprintf (fp, "\n");
}
fprintf (fp, "</pre>\n");
}
fprintf (fp, "<pre>\n End of <b>%s</b> grammar listing.\n</pre>\n", gfn);
for (h = 0; h < 30; h++)
{
fprintf (fp, "<pre><br></pre>\n");
}
Ret: fprintf (fp, "</body>\n");
fprintf (fp, "</html>\n\n");
fclose (fp);
}
int PGPrintHtml::ph_head (int s, char *sp)
{
int l;
head_on = 1;
l = ph_sym (-s, sp);
head_on = 0;
return (l);
}
int PGPrintHtml::ph_sym (int s, char *sp)
{
char *p;
if (s >= 0 && head_on == 0)
{
p = term_name[s];
}
else
{
p = head_name[-s];
}
return (ph_str (s, p, sp));
}
int PGPrintHtml::ph_str (int s, char *p, char *sp)
{
int i, j, l;
char string[1024];
j = 0;
l = strlen (p);
if (l > 1023) l = 1023;
for (i = 0; i < l; i++)
{
if (p[i] == '<')
{
string[j++] = '&';
string[j++] = 'l';
string[j++] = 't';
string[j++] = ';';
}
else if (p[i] == '>')
{
string[j++] = '&';
string[j++] = 'g';
string[j++] = 't';
string[j++] = ';';
}
else
{
string[j++] = p[i];
}
}
string [j] = 0;
if (head_on) fprintf (fp, "<b>");
else if (s < 0) fprintf (fp, "<a href=\"#%s\">", string);
else if (*p == '<') fprintf (fp, "<font color=#df0000>");
else if (*p == '{') fprintf (fp, "<font color=#df0000>");
else if (*p == '\'');
else if (s > 0 ) fprintf (fp, "<font color=#0000df>");
fprintf (fp, "%s", string);
if (head_on) fprintf (fp, "</b>");
else if (s < 0) fprintf (fp, "</a>");
else if (*p == '<') fprintf (fp, "</font>");
else if (*p == '{') fprintf (fp, "</font>");
else if (*p == '\'');
else if (s > 0 ) fprintf (fp, "</font>");
fprintf (fp, "%s", sp);
return (strlen(p) + strlen(sp));
}
void PGPrintHtml::ph_spaces (int ns)
{
if (ns < 0)
{
ns = 5 + (ns % 5);
if (ns == 5) return;
}
spaces [ns] = 0;
fprintf (fp, "%s", spaces);
spaces [ns] = ' ';
}
/*--- HTML_GRM --------------------------------------------------------------*/
#endif