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htmlout.c
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htmlout.c
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/***************************************
$Header$
Driver for producing HTML output from the glosser.
***************************************/
/* COPYRIGHT */
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "functions.h"
#include "output.h"
typedef enum {
ST_OPEN,
ST_TEXT,
ST_CLOSE,
ST_START
} States;
static States state;
/*++++++++++++++++++++++++++++++++++++++
++++++++++++++++++++++++++++++++++++++*/
static void
initialise(void)
{
state = ST_START;
}
/*++++++++++++++++++++++++++++++++++++++
++++++++++++++++++++++++++++++++++++++*/
static void
write_prologue(void)
{
printf("<HTML>\n"
"<HEAD>\n"
"<TITLE>Lojban translation</TITLE>\n"
"<BODY>\n");
}
/*++++++++++++++++++++++++++++++++++++++
++++++++++++++++++++++++++++++++++++++*/
static void
write_epilog(void)
{
printf("</BODY>\n");
}
/* Number of end of lines that are pending. (These are only inserted
when we have closed a sequence of close brackets, i.e. before the
next open bracket or ordinary text.) */
static int pending_eols = 0;
/*++++++++++++++++++++++++++++++
++++++++++++++++++++++++++++++*/
static void
clear_eols(void)
{
if (pending_eols > 0) {
printf("\n<P><P>\n");
state = ST_OPEN;
pending_eols = 0;
}
}
/*++++++++++++++++++++++++++++++
++++++++++++++++++++++++++++++*/
static void
set_eols(int eols)
{
pending_eols += eols;
}
#define PRINT_SUB printf("<SUB><FONT SIZE=\"-3\">%d</FONT></SUB>", subscript)
/*++++++++++++++++++++++++++++++++++++++
BracketType type
int subscript
++++++++++++++++++++++++++++++++++++++*/
static void
write_open_bracket(BracketType type, int subscript)
{
clear_eols();
switch (state) {
case ST_START:
case ST_OPEN:
break;
case ST_TEXT:
case ST_CLOSE:
printf(" ");
break;
}
switch (type) {
case BR_NONE:
break;
case BR_ROUND:
printf("(");
PRINT_SUB;
break;
case BR_SQUARE:
printf("[");
PRINT_SUB;
break;
case BR_BRACE:
printf("{");
PRINT_SUB;
break;
case BR_ANGLE:
printf("<");
PRINT_SUB;
break;
case BR_CEIL:
printf("(");
PRINT_SUB;
break;
case BR_FLOOR:
printf("(");
PRINT_SUB;
break;
case BR_TRIANGLE:
printf("<<");
PRINT_SUB;
break;
}
state = ST_OPEN;
}
/*++++++++++++++++++++++++++++++++++++++
BracketType type
int subscript
++++++++++++++++++++++++++++++++++++++*/
static void
write_close_bracket(BracketType type, int subscript)
{
switch (state) {
case ST_START:
case ST_CLOSE:
case ST_TEXT:
break;
case ST_OPEN:
printf(" ");
break;
}
switch (type) {
case BR_NONE:
break;
case BR_ROUND:
printf(")");
PRINT_SUB;
break;
case BR_SQUARE:
printf("]");
PRINT_SUB;
break;
case BR_BRACE:
printf("}");
PRINT_SUB;
break;
case BR_ANGLE:
printf(">");
PRINT_SUB;
break;
case BR_CEIL:
printf(")");
PRINT_SUB;
break;
case BR_FLOOR:
printf(")");
PRINT_SUB;
break;
case BR_TRIANGLE:
printf(">>");
PRINT_SUB;
break;
}
state = ST_CLOSE;
}
/*++++++++++++++++++++++++++++++
Make a string safe for setting with HTML.
static char * make_htmlsafe
char *s
++++++++++++++++++++++++++++++*/
static char *
make_htmlsafe(char *s)
{
static char buf[2048];
char *p, *q;
p = s;
q = buf;
while (*p) {
switch (*p) {
case '&':
strcpy(q, "&");
q += 5;
break;
case '<':
strcpy(q, "<");
q += 4;
break;
case '>':
strcpy(q, ">");
q += 4;
break;
default:
*q++ = *p++;
break;
}
}
*q = 0;
return buf;
}
/*++++++++++++++++++++++++++++++++++++++
char *text
++++++++++++++++++++++++++++++++++++++*/
static void
write_lojban_text(char *text)
{
switch (state) {
case ST_START:
case ST_OPEN:
break;
case ST_TEXT:
case ST_CLOSE:
printf("\n");
break;
}
printf("<B>%s</B>", text);
state = ST_TEXT;
}
/*++++++++++++++++++++++++++++++++++++++
char *text
++++++++++++++++++++++++++++++++++++++*/
static void
write_special(char *text)
{
if (!strcmp(text, "$LEFTARROW")) {
printf("<-");
} else if (!strcmp(text, "$OPENQUOTE")) {
printf("<FONT SIZE=+2>"</FONT>");
} else if (!strcmp(text, "$CLOSEQUOTE")) {
printf("<FONT SIZE=+2>"</FONT>");
}
}
/*++++++++++++++++++++++++++++++++++++++
char *text
++++++++++++++++++++++++++++++++++++++*/
static void
write_translation(char *text)
{
switch (state) {
case ST_START:
case ST_OPEN:
break;
case ST_TEXT:
case ST_CLOSE:
printf("\n");
break;
}
if (text[0] == '$') {
write_special(text);
} else {
printf("<I>%s</I>", make_htmlsafe(text));
}
state = ST_TEXT;
}
/*+ +*/
static int first_tag;
/*++++++++++++++++++++++++++++++++++++++
++++++++++++++++++++++++++++++++++++++*/
static void
start_tags(void)
{
printf("<U><FONT SIZE=-1>[");
first_tag = 1;
}
/*++++++++++++++++++++++++++++++++++++++
++++++++++++++++++++++++++++++++++++++*/
static void
end_tags(void)
{
printf(":] </FONT></U>");
}
/*++++++++++++++++++++++++++++++++++++++
++++++++++++++++++++++++++++++++++++++*/
static void
start_tag(void)
{
if (!first_tag) {
printf(", ");
}
first_tag = 0;
}
/*++++++++++++++++++++++++++++++++++++++
char *brivla
int place
char *trans
++++++++++++++++++++++++++++++++++++++*/
static void
write_tag_text(char *brivla, char *place, char *trans, int brac)
{
if (brac) {
printf("%s%s (%s)\n", brivla, place, make_htmlsafe(trans));
} else {
printf("%s%s %s\n", brivla, place, make_htmlsafe(trans));
}
}
static void write_partial_tag_text(char *t)/*{{{*/
{
printf("%s", t);
}
/*}}}*/
DriverVector html_driver =/*{{{*/
{
initialise,
write_prologue,
write_epilog,
write_open_bracket,
write_close_bracket,
set_eols,
write_lojban_text,
write_translation,
start_tags,
end_tags,
start_tag,
write_tag_text,
write_partial_tag_text
};/*}}}*/