W3C home > Mailing lists > Public > html-tidy@w3.org > April to June 1999

Different slide naming scheme

From: Peter Lewerin <peter.lewerin@krax.pp.se>
Date: Tue, 04 May 1999 00:33:01 +0200
Message-Id: <3.0.6.32.19990504003301.00897b20@mailbox.swipnet.se>
To: html-tidy@w3.org

I'm interested in the slide creation functionality, partly because I use an
AWK/sed mechanism to do something similar with my own course material.

Has anyone suggested changing the slide naming scheme to allow the names to
be sorted in the correct order?

e.g. instead of

   slide1.html
   ...
   slide9.html
   slide10.html

it would be

   slide01.html
   ...
   slide09.html
   slide10.html

or, if the slide count is greater than 99 but less than 999:

   slide001.html
   etc

As far as I understand it changes would have to be made to two functions in
pprint.c; PrintNavBar() and CreateSlides(), something like the following
(diff (against the Apr 15 source)):

*** pprint._	Thu Apr 15 19:35:34 1999
--- pprint.c	Mon May  3 23:37:22 1999
***************
*** 6,11 ****
--- 6,12 ----
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
+ #include <math.h>
  #include "platform.h"
  #include "html.h"
  
***************
*** 210,215 ****
--- 211,217 ----
                  outc(' ', fout);
          }
  
+ 
          for (i = 0; i < linelen; ++i)
              outc(linebuf[i], fout);
      }
***************
*** 1229,1255 ****
  void PrintNavBar(Out *fout, uint indent)
  {
      char buf[128];
  
      PCondFlushLine(fout, indent);
      PPrintString(fout, indent , "<center><small>");
  
      if (slide > 1)
      {
!         sprintf(buf, "<a href=\"slide%d.html\">previous</a> | ", slide-1);
          PPrintString(fout, indent , buf);
          PCondFlushLine(fout, indent);
  
!         if (slide < count)
!             PPrintString(fout, indent , "<a
href=\"slide1.html\">start</a> | ");
!         else
!             PPrintString(fout, indent , "<a
href=\"slide1.html\">start</a>");
  
          PCondFlushLine(fout, indent);
      }
  
      if (slide < count)
      {
!         sprintf(buf, "<a href=\"slide%d.html\">next</a>", slide+1);
          PPrintString(fout, indent , buf);
      }
  
--- 1231,1262 ----
  void PrintNavBar(Out *fout, uint indent)
  {
      char buf[128];
+     int field_width;
  
+     field_width = (int)log10(count) + 1;
      PCondFlushLine(fout, indent);
      PPrintString(fout, indent , "<center><small>");
  
      if (slide > 1)
      {
!         sprintf(buf, "<a href=\"slide%0*d.html\">previous</a> | ",
field_width, slide-1);
          PPrintString(fout, indent , buf);
          PCondFlushLine(fout, indent);
  
!         if (slide < count) {
!             sprintf(buf, "<a href=\"slide%0*d.html\">start</a> | ",
field_width, 1);
!             PPrintString(fout, indent , buf);
!         } else {
!             sprintf(buf, "<a href=\"slide%0*d.html\">start</a>",
field_width, 1);
!             PPrintString(fout, indent , buf);
!         }
  
          PCondFlushLine(fout, indent);
      }
  
      if (slide < count)
      {
!         sprintf(buf, "<a href=\"slide%0*d.html\">next</a>", field_width,
slide+1);
          PPrintString(fout, indent , buf);
      }
  
***************
*** 1358,1371 ****
      char buf[128];
      Out out;
      FILE *fp;
  
      body = FindBody(root);
      count = CountSlides(body);
      slidecontent = body->content;
  
      for (slide = 1; slide <= count; ++slide)
      {
!         sprintf(buf, "slide%d.html", slide);
          out.state = FSM_ASCII;
          out.encoding = CharEncoding;
  
--- 1365,1380 ----
      char buf[128];
      Out out;
      FILE *fp;
+     int field_width;
  
      body = FindBody(root);
      count = CountSlides(body);
      slidecontent = body->content;
+     field_width = (int)log10(count) + 1;
  
      for (slide = 1; slide <= count; ++slide)
      {
!         sprintf(buf, "slide%0*d.html", field_width, slide);
          out.state = FSM_ASCII;
          out.encoding = CharEncoding;
  
***************
*** 1386,1392 ****
  
      for (;;)
      {
!         sprintf(buf, "slide%d.html", slide);
  
          if (unlink(buf) != 0)
              break;
--- 1395,1401 ----
  
      for (;;)
      {
!         sprintf(buf, "slide%0*d.html", field_width, slide);
  
          if (unlink(buf) != 0)
              break;

and the modified pprint.c is available as
<http://home.swipnet.se/pelewin/html-tidy/pprint.c>.  IMPORTANT: I present
this modified source only as a reference for evaluation, with no intention
of violating copyrights or stealing intellectual property etc.  Let me know
if I'm out of line rather than helpful.
Received on Monday, 3 May 1999 18:34:29 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Tuesday, 3 April 2012 06:13:42 GMT