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/* fields.c - handle MS Word fields
Copyright (C) 2008 The Free Software Foundation
This program 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
of the License, or (at your option) any later version.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
This file is available from http://sourceforge.net/projects/latex2rtf/
Authors:
2008 Scott Prahl
*/
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "main.h"
#include "fields.h"
#define FIELD_MAX_DEPTH 20
int g_equation_field_EQ_in_effect = 0;
int g_fields_use_EQ = 1;
int g_fields_use_REF = 1;
int g_fields_use_SYMBOL = 1;
int g_fields_use_PAGE = 1;
int g_fields_use_PAGE_REF = 1;
int g_fields_use_COMMENT = 1;
int g_fields_allowed = 1;
char g_field_separator = ',';
int g_field_depth = -1;
int g_field[FIELD_MAX_DEPTH];
/* OK there are a bunch of possible states
g_fields_allowed : should fields be used at all
g_fields_use_EQ : is the EQ type of field allowed
g_fields_use_REF : is the REF type of field allowed
g_fields_use_SYMBOL: is the SYMBOL type of field allowed
g_field_depth : 0 if not processing field
g_field_type :
EQ fields should never be nested
*/
int EQ_field_active(void)
{
int i;
for (i=0; i<=g_field_depth; i++) {
if (g_field[i] == FIELD_EQ)
return 1;
}
return 0;
}
void startField(int type)
{
if (!g_fields_allowed) return;
switch (type) {
case FIELD_EQ:
diagnostics(4,"starting EQ field");
diagnostics(6, "EQ fields allowed = %d",g_fields_use_EQ);
if (!g_fields_use_EQ) return;
if (EQ_field_active())
diagnostics(1,"nested EQ fields ???");
fprintRTF("{\\field{\\*\\fldinst{ EQ ");
break;
case FIELD_REF:
diagnostics(4,"starting REF field");
if (!g_fields_use_REF) return;
break;
case FIELD_SYMBOL:
diagnostics(4,"starting SYMBOL field");
if (!g_fields_use_SYMBOL) return;
break;
case FIELD_PAGE:
diagnostics(4,"starting PAGE field");
if (!g_fields_use_PAGE) return;
break;
case FIELD_PAGE_REF:
diagnostics(4,"starting PAGE_REF field");
if (!g_fields_use_PAGE_REF) return;
break;
case FIELD_COMMENT:
diagnostics(4,"starting COMMENT field");
if (!g_fields_use_COMMENT) return;
fprintRTF("{\\field{\\*\\fldinst{ COMMENTS \" ");
break;
}
g_field_depth++;
g_field[g_field_depth] = type;
if (g_field_depth >= FIELD_MAX_DEPTH)
diagnostics(0, "Nesting of fields is excessive!");
}
void endCurrentField(void)
{
diagnostics(4, "end Field");
if (!g_fields_allowed) return;
if (g_field_depth < 0) {
diagnostics(1, "oops, looks like fields are too shallow!");
return;
}
switch (g_field[g_field_depth]) {
case FIELD_EQ:
if (!g_fields_use_EQ) return;
fprintRTF("}}{\\fldrslt }}\n");
break;
case FIELD_REF:
if (!g_fields_use_REF) return;
break;
case FIELD_SYMBOL:
if (!g_fields_use_SYMBOL) return;
break;
case FIELD_PAGE:
if (!g_fields_use_PAGE) return;
break;
case FIELD_PAGE_REF:
if (!g_fields_use_PAGE_REF) return;
break;
case FIELD_COMMENT:
if (!g_fields_use_COMMENT) return;
fprintRTF("\" }}{\\fldrslt }}\n");
break;
}
g_field_depth--;
}
void endAllFields(void)
{
if (!g_fields_allowed) return;
while (g_field_depth >= 0)
endCurrentField();
}
void fprintfRTF_field_separator(void)
{
fprintRTF("%c", g_field_separator);
}
void set_field_separator(char c)
{
g_field_separator = c;
}
void set_fields_use_REF(int i)
{
g_fields_use_REF = i;
}
int fields_use_REF(void)
{
return g_fields_use_REF;
}
void set_fields_use_EQ(int i)
{
g_fields_use_EQ = i;
}
int fields_use_EQ(void)
{
return g_fields_use_EQ;
}
int processing_fields(void)
{
if (g_field_depth >= 0)
return 1;
else
return 0;
}
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