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ipf.c
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C/C++ Source or Header
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1998-07-04
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15KB
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721 lines
/* ipf.c -- IPF output
Copyright (c) 1993-1998 Eberhard Mattes
This file is part of emxdoc.
emxdoc is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
emxdoc is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with emxdoc; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "emxdoc.h"
#include "ipf.h"
#include "xref.h"
#define HBAR 0xc4
#define VBAR 0xb3
void ipf_hilite (int new)
{
int diff, font_changed;
if (new & HL_EM)
new = (new & ~HL_EM) | HL_SL;
if (hl_ipf == new)
return;
font_changed = FALSE;
diff = new & ~hl_ipf;
if (diff & HL_TT)
{
write_string (":font");
write_space ();
write_string ("facename=Courier");
write_space ();
write_string ("size=16x9.");
font_changed = TRUE;
}
diff = hl_ipf & ~new;
if (diff & HL_TT)
{
write_string (":font");
write_space ();
write_string ("facename=default");
write_space ();
write_string ("size=0x0.");
font_changed = TRUE;
}
if ((hl_ipf & (HL_BF|HL_SL|HL_UL))
!= (new & (HL_BF|HL_SL|HL_UL)) || font_changed)
{
if (hl_ipf_no != 0)
write_fmt (":ehp%d.", hl_ipf_no);
if (opt_c && (new & HL_SL))
hl_ipf_no = 4;
else
switch (new & (HL_BF|HL_SL|HL_UL))
{
case 0:
hl_ipf_no = 0;
break;
case HL_SL:
hl_ipf_no = 1;
break;
case HL_SL|HL_BF:
hl_ipf_no = 3;
break;
case HL_SL|HL_UL:
case HL_SL|HL_BF|HL_UL:
hl_ipf_no = 6;
break;
case HL_BF:
hl_ipf_no = 2;
break;
case HL_BF|HL_UL:
hl_ipf_no = 7;
break;
case HL_UL:
hl_ipf_no = 5;
break;
default:
abort ();
}
if (hl_ipf_no != 0)
write_fmt (":hp%d.", hl_ipf_no);
}
hl_ipf = new;
}
static void ipf_string (const uchar *p, int may_break)
{
const uchar *q;
if (*p == ' ' && output_x >= 60 && may_break)
{
write_nl ();
++p;
}
if (*p == '.' && output_x == 0)
{
write_string ("&per.");
++p;
}
while ((q = strpbrk (p, ":&")) != NULL)
{
write_nstring (p, q - p);
switch (*q)
{
case ':':
write_string ("&colon.");
break;
case '&':
write_string ("&.");
break;
default:
abort ();
}
p = q + 1;
}
write_string (p);
}
void ipf_output (const uchar *p, int may_break)
{
ipf_hilite (hl_stack[hl_sp]);
ipf_string (p, may_break);
}
void ipf_para (void)
{
write_break ();
write_line (":p.");
}
void ipf_margin (int margin)
{
if (out && mode == 'i')
{
write_fmt (":lm margin=%d.", margin);
write_nl ();
}
}
void ipf_env_margin (int sp)
{
ipf_margin (env_stack[sp].imargin);
}
void ipf_elements (enum style style)
{
const struct element *ep;
enum style style_stack[STYLE_STACK_SIZE];
int style_sp;
style_sp = 0;
style_stack[style_sp] = style;
for (ep = elements; ep->el != EL_END; ++ep)
switch (ep->el)
{
case EL_WORD:
case EL_PUNCT:
if (ep->n != 0)
{
if (ep->wp->database == NULL)
ipf_begin_link (NULL, ep->wp->ref);
else
ipf_begin_link (ep->wp->database->str, ep->wp->ref);
format_output (ep->wp->str, FALSE);
ipf_end_link ();
}
else if (ep->wp->special != NULL && ep->wp->special->ipf != NULL)
write_string (ep->wp->special->ipf);
else if (style_sp == 0 || style_stack[style_sp] == STYLE_NORMAL)
format_string (ep->wp->str, (ep->wp->style != STYLE_NORMAL
? ep->wp->style : style), FALSE);
else
format_string (ep->wp->str, style_stack[style_sp], FALSE);
break;
case EL_SPACE:
format_spaces (ep->n, style_stack[style_sp]);
break;
case EL_BREAK:
write_break ();
write_line (".br");
break;
case EL_STYLE:
if (style_sp + 1 >= STYLE_STACK_SIZE)
fatal ("%s:%d: Style stack overflow", input_fname, line_no);
style_stack[++style_sp] = ep->n;
break;
case EL_ENDSTYLE:
if (style_sp == 0)
fatal ("%s:%d: Style stack underflow", input_fname, line_no);
--style_sp;
break;
default:
abort ();
}
}
void ipf_begin_link (const uchar *database, int ref)
{
ipf_hilite (hl_stack[hl_sp]);
write_string (":link");
write_space ();
write_string ("reftype=hd");
write_space ();
if (database != NULL && !opt_a)
{
write_space ();
write_fmt ("refid=%d database='%s'", ref, database);
}
else
write_fmt ("res=%d", ref);
write_string (".");
}
void ipf_end_link (void)
{
write_string (":elink.");
}
void ipf_end_env (void)
{
switch (env_stack[env_sp].env)
{
case ENV_DESCRIPTION:
write_break ();
write_line (":edl.");
break;
case ENV_ENUMERATE:
write_break ();
write_line (":eol.");
break;
case ENV_ITEMIZE:
write_break ();
write_line (":eul.");
break;
case ENV_LIST:
case ENV_INDENT:
case ENV_TYPEWRITER:
write_break ();
ipf_env_margin (env_sp-1);
break;
default:
abort ();
}
}
void ipf_toc_start (void)
{
write_line (":lines align=left.");
}
void ipf_toc_line (const uchar *s, const struct toc *tp)
{
format_string (s, STYLE_NORMAL, FALSE);
ipf_begin_link (NULL, tp->ref);
format_output (tp->title, FALSE);
ipf_end_link ();
write_nl ();
}
void ipf_toc_end (void)
{
write_line (":elines.");
}
void ipf_heading1 (int level, int ref, int global, unsigned flags)
{
if (hl_sp != 0)
fatal ("%s:%d: Hilighting must be off at section heading",
input_fname, line_no);
ipf_hilite (hl_stack[hl_sp]);
write_break ();
write_fmt (":h%d res=%d", level, ref);
if (global && !opt_a)
write_fmt (" id=%d global", ref);
if (flags & HF_HIDE)
write_string (" hide");
write_string (".");
}
void ipf_heading2 (const uchar *s)
{
if (tg_level == 0)
{
if (para_flag)
ipf_para ();
ipf_para ();
start_hilite (HL_BF);
format_output (s, FALSE);
end_hilite ();
}
else
format_output (s, FALSE);
write_nl ();
ipf_env_margin (0);
}
void ipf_description (void)
{
write_fmt (":dl break=fit tsize=%d.", IPF_DESCRIPTION_INDENT);
write_nl ();
}
void ipf_enumerate (void)
{
write_line (":ol.");
}
void ipf_itemize (void)
{
write_line (":ul.");
}
void ipf_verbatim_start (enum tag tag_end)
{
switch (tag_end)
{
case TAG_ENDHEADERS:
format_string ("Headers:", STYLE_BOLD, FALSE);
break;
case TAG_ENDSAMPLECODE:
ipf_para ();
format_string ("Example:", STYLE_BOLD, FALSE);
break;
case TAG_ENDEXAMPLE:
ipf_margin (env_stack[env_sp].imargin + 4);
break;
default:
break;
}
write_break ();
ipf_hilite (hl_stack[hl_sp]); /* Don't switch font after :cgraphic */
write_line (":cgraphic.");
}
void ipf_verbatim_line (void)
{
format_output (input, FALSE);
write_nl ();
}
void ipf_verbatim_end (enum tag tag_end)
{
write_line (":ecgraphic.");
switch (tag_end)
{
case TAG_ENDEXAMPLE:
ipf_env_margin (env_sp);
write_line (".br");
para_flag = FALSE;
break;
default:
para_flag = TRUE;
break;
}
}
void ipf_description_item (const uchar *s)
{
write_break ();
write_string (":dt.");
make_elements (s);
ipf_elements (STYLE_NORMAL);
write_break ();
write_string (":dd.");
}
void ipf_enumerate_item (void)
{
write_break ();
ipf_hilite (hl_stack[hl_sp]); /* Use correct font for number */
write_string (":li.");
}
void ipf_itemize_item (void)
{
write_break ();
ipf_hilite (hl_stack[hl_sp]); /* Use correct font for mark */
write_string (":li.");
}
void ipf_list_item (const uchar *s)
{
ipf_env_margin (env_sp-1);
ipf_para ();
make_elements (s);
ipf_elements (STYLE_NORMAL);
ipf_para ();
ipf_env_margin (env_sp);
}
void ipf_prototype_start (void)
{
if (para_flag)
ipf_para ();
format_string (function_count == 1 ? "Prototype:" : "Prototypes:",
STYLE_BOLD, FALSE);
write_break ();
ipf_para ();
}
void ipf_prototype_end (uchar *compat)
{
ipf_elements (STYLE_TTY);
ipf_para ();
if (compat[0] != 0)
{
format_string ("Compatibility:", STYLE_BOLD, FALSE);
ipf_para ();
format_string (compat, STYLE_NORMAL, FALSE);
ipf_para ();
compat[0] = 0;
}
format_string ("Description:", STYLE_BOLD, FALSE);
}
void ipf_start (void)
{
write_line (":userdoc.");
write_line (":prolog.");
write_line (":docprof toc=123.");
if (title != NULL)
{
write_string (":title.");
format_string (title, STYLE_NORMAL, FALSE);
write_nl ();
}
write_line (":eprolog.");
write_line (":body.");
}
void ipf_table_start (int do_indent, int *widths, int wn)
{
int wi;
if (do_indent)
ipf_margin (env_stack[env_sp].imargin + 4);
write_break ();
write_string (":table");
if (wn != 0)
{
write_string (" cols='");
for (wi = 0; wi < wn; ++wi)
{
if (wi != 0)
write_string (" ");
write_fmt ("%d", widths[wi]);
}
write_string ("'");
}
write_line (".");
}
void ipf_table_line (const uchar *s, int wn)
{
int wi;
uchar word[512], *d;
if (*s != HBAR)
{
write_line (":row.");
wi = 0;
while (*s != 0)
{
++wi;
write_string (":c.");
d = word;
while (*s != VBAR && *s != 0)
*d++ = *s++;
while (d != word && isspace (d[-1]))
--d;
*d = 0;
make_elements (word);
ipf_elements (STYLE_NORMAL);
write_break ();
if (*s != 0)
{
++s;
while (isspace (*s))
++s;
}
}
if (wi != wn)
fatal ("%s:%d: Wrong number of columns", input_fname, line_no);
}
}
void ipf_table_end (int do_indent)
{
write_line (":etable.");
if (do_indent)
{
ipf_env_margin (env_sp);
write_line (".br");
para_flag = FALSE;
}
else
para_flag = TRUE;
}
void ipf_index (const uchar *s)
{
struct word *wp;
switch (tg_level)
{
case 0:
write_string (":i1.");
ipf_string (s, FALSE);
write_nl ();
break;
case 1:
if (*s == 0)
idx_refid = 0;
else
{
wp = word_add (s);
if (wp->idx == 0)
{
idx_refid = wp->idx = ++idx_no;
write_fmt (":i1 id=%d.", idx_refid);
ipf_string (s, FALSE);
write_nl ();
}
else
idx_refid = wp->idx;
}
break;
case 2:
if (idx_refid == 0)
fatal ("%s:%d: %ci2 without %ci1", input_fname, line_no,
escape, escape);
write_fmt (":i2 refid=%d.", idx_refid);
ipf_string (s, FALSE);
write_nl ();
break;
default:
abort ();
}
}
void ipf_see_also_start (void)
{
if (para_flag)
ipf_para ();
format_string ("See also: ", STYLE_BOLD, FALSE);
}
void ipf_see_also_word (const uchar *word, const uchar *s)
{
struct word *wp;
wp = use_reference (word);
if (wp != NULL)
{
if (wp->database == NULL)
ipf_begin_link (NULL, wp->ref);
else
ipf_begin_link (wp->database->str, wp->ref);
write_string (word);
ipf_end_link ();
}
if (*s != 0)
{
write_string (",");
if (output_x >= 60)
write_nl ();
else
write_string (" ");
}
}
void ipf_sample_file (const uchar *s)
{
if (para_flag)
ipf_para ();
format_string ("Example: ", STYLE_BOLD, FALSE);
format_string ("See ", STYLE_NORMAL, FALSE);
format_string (s, STYLE_TTY, FALSE);
para_flag = TRUE;
}
void ipf_libref_section (const uchar *s)
{
if (para_flag)
ipf_para ();
format_string (s, STYLE_BOLD, FALSE);
para_flag = TRUE;
}
void ipf_function_start (const struct toc *tp)
{
ipf_heading1 (2, tp->ref, tp->global, 0);
write_line (tp->title);
if (idx_refid == 0)
fatal ("%s:%d: %cfunction without %ci1",
input_fname, line_no, escape, escape);
ipf_margin (1);
}
void ipf_function_function (const uchar *s)
{
write_break ();
write_fmt (":i2 refid=%d.", idx_refid);
write_line (s);
}
void ipf_copy (void)
{
if (para_flag)
ipf_para ();
switch (env_stack[env_sp].env)
{
case ENV_TYPEWRITER:
ipf_elements (STYLE_TTY);
break;
default:
ipf_elements (STYLE_NORMAL);
break;
}
}
void ipf_minitoc (const struct toc *tp)
{
int level, any;
if (tp == NULL)
fatal ("%s:%d: Cannot build minitoc before the first heading",
input_fname, line_no);
if (para_flag)
ipf_para ();
level = tp->level;
tp = tp->next;
any = FALSE;
while (tp != NULL && tp->level >= level + 1)
{
if (tp->level == level + 1)
{
if (!any)
{
write_line (":lines align=left.");
any = TRUE;
}
ipf_begin_link (NULL, tp->ref);
format_output (tp->title, FALSE);
ipf_end_link ();
write_nl ();
}
tp = tp->next;
}
if (any)
{
write_line (":elines.");
para_flag = TRUE;
}
}
void ipf_end (void)
{
ipf_hilite (0);
write_line (":euserdoc.");
}