зеркало из https://github.com/mozilla/pjs.git
343 строки
8.6 KiB
C
343 строки
8.6 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public License
|
|
* Version 1.0 (the "NPL"); you may not use this file except in
|
|
* compliance with the NPL. You may obtain a copy of the NPL at
|
|
* http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
|
* for the specific language governing rights and limitations under the
|
|
* NPL.
|
|
*
|
|
* The Initial Developer of this code under the NPL is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
|
* Reserved.
|
|
*/
|
|
|
|
/*
|
|
This is some glue code for a semi-parsing CSS. Its used to
|
|
output html from XML.
|
|
This will be changed when we incorporate the real xml parser
|
|
from James Clark will replace this within the next few weeks.
|
|
|
|
For more information on this file, contact rjc or guha
|
|
For more information on RDF, look at the RDF section of www.mozilla.org
|
|
For more info on XML in navigator, look at the XML section
|
|
of www.mozilla.org.
|
|
*/
|
|
|
|
#include "xmlss.h"
|
|
#define href "href"
|
|
#define XLL "XML-Link"
|
|
|
|
#define BUF_SIZE 4096
|
|
|
|
int
|
|
parseNextXMLCSSBlob (NET_StreamClass *stream, char* blob, int32 size)
|
|
{
|
|
StyleSheet ss;
|
|
int32 n, last, m;
|
|
PRBool somethingseenp = false;
|
|
n = last = 0;
|
|
|
|
ss = (StyleSheet)(stream->data_object);
|
|
if ((ss == NULL) || (size < 0)) {
|
|
return MK_INTERRUPTED;
|
|
}
|
|
|
|
while (n < size) {
|
|
char c = blob[n];
|
|
m = 0;
|
|
memset(ss->line, '\0', ss->lineSize);
|
|
if (ss->holdOver[0] != '\0') {
|
|
memcpy(ss->line, ss->holdOver, strlen(ss->holdOver));
|
|
m = strlen(ss->holdOver);
|
|
somethingseenp = 1;
|
|
memset(ss->holdOver, '\0', BUF_SIZE);
|
|
}
|
|
while ((m < 300) && (c != '{') && (c != '}')) {
|
|
ss->line[m] = c;
|
|
m++;
|
|
somethingseenp = (somethingseenp || ((c != ' ') &&
|
|
(c != '\r') && (c != '\n')));
|
|
n++;
|
|
if (n < size) {
|
|
c = blob[n];
|
|
} else break;
|
|
}
|
|
if (c == '}') ss->line[m] = c;
|
|
n++;
|
|
if (m > 0) {
|
|
if ((c == '}') || (c == '{')) {
|
|
last = n;
|
|
if (c == '{') ss->holdOver[0] = '{';
|
|
if (somethingseenp) {
|
|
parseNextXMLCSSElement(ss, ss->line);
|
|
}
|
|
} else if (size > last) {
|
|
memcpy(ss->holdOver, ss->line, m);
|
|
}
|
|
} else if (c == '{') ss->holdOver[0] = '{';
|
|
}
|
|
return(size);
|
|
}
|
|
|
|
static int32 style_id_counter = 0;
|
|
|
|
void
|
|
parseNextXMLCSSElement (StyleSheet ss, char* ele)
|
|
{
|
|
if (ele[0] == '{') {
|
|
char* sty = getMem(strlen(ele)-1);
|
|
memcpy(sty, &ele[1], strlen(ele)-2);
|
|
ss->el->style = sty;
|
|
} else {
|
|
StyleElement se = (StyleElement) getMem(sizeof(StyleElementStruct));
|
|
size_t numTags, size, n, count;
|
|
se->id = ++style_id_counter;
|
|
se->next = ss->el;
|
|
ss->el = se;
|
|
size = strlen(ele);
|
|
count = n = 0;
|
|
numTags = countTagStackSize(ele);
|
|
while (count < numTags) {
|
|
size_t st = 0;
|
|
char** tgs = (char**) getMem(numTags * sizeof(char**));
|
|
se->tagStack = tgs;
|
|
while (st < numTags) {
|
|
*(tgs + st++) = getNextSSTag(ele, &n);
|
|
}
|
|
count++;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
size_t
|
|
countSSNumTags (char* ele)
|
|
{
|
|
size_t n = 0;
|
|
size_t m = 1;
|
|
size_t sz = strlen(ele);
|
|
while (n < sz) {
|
|
if (ele[n++] == ',') m++;
|
|
}
|
|
return m;
|
|
}
|
|
|
|
|
|
|
|
size_t
|
|
countTagStackSize (char* ele)
|
|
{
|
|
size_t n = 0;
|
|
size_t m = 0;
|
|
PRBool inSpace = 1;
|
|
size_t sz = strlen(ele);
|
|
while (n < sz) {
|
|
if (ele[n] == ',') break;
|
|
if ((ele[n] != ' ') && (ele[n] != '\r') && (ele[n] != '\n')) {
|
|
if (inSpace) {
|
|
m++;
|
|
inSpace = 0;
|
|
}
|
|
} else inSpace = 1;
|
|
n++;
|
|
}
|
|
return m;
|
|
}
|
|
|
|
|
|
|
|
char*
|
|
getNextSSTag (char* ele, size_t* n)
|
|
{
|
|
char tag[100];
|
|
size_t m = 0;
|
|
char c = ele[*n];
|
|
size_t s = strlen(ele);
|
|
memset(tag, '\0', 100);
|
|
while ((c == '\r') || (c == ' ') || (c == '\n')) {
|
|
*n = *n + 1;
|
|
c = ele[*n];
|
|
}
|
|
while ((c != ' ') && (c != ',') && (*n < s)) {
|
|
tag[m++] = c;
|
|
*n = *n + 1;
|
|
c = ele[*n];
|
|
}
|
|
return copyString(tag);
|
|
}
|
|
|
|
|
|
|
|
void
|
|
outputAttributes(XMLFile f, char** attlist)
|
|
{
|
|
uint32 n = 0;
|
|
PRBool xmlinkp = (getAttributeValue(attlist, XLL) != NULL);
|
|
if (!attlist) return ;
|
|
while ((n < 2*MAX_ATTRIBUTES) && (*(attlist + n) != NULL)) {
|
|
if (!(xmlinkp && stringEquals(*(attlist + n), href))) {
|
|
outputToStream(f, *(attlist + n));
|
|
outputToStream(f, "=\"");
|
|
outputToStream(f, *(attlist + n + 1));
|
|
outputToStream(f, "\" ");
|
|
}
|
|
|
|
n = n + 2;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
void
|
|
outputAsHTML (XMLFile f, XMLElement el)
|
|
{
|
|
if (strcmp(el->tag, "xml:content") == 0) {
|
|
outputToStream(f, el->content);
|
|
} else {
|
|
char* htmlEquiv = getAttributeValue(el->attributes, "html");
|
|
char* linkTag = getAttributeValue(el->attributes, XLL);
|
|
char* htmlBuff = getMem(1024);
|
|
XMLElement child = el->child;
|
|
PRBool suppressTag = !startsWith("html:", el->tag) ;
|
|
|
|
if (linkTag && (stringEquals(linkTag, "LINK"))) {
|
|
char* hrefVal = getAttributeValue(el->attributes, href);
|
|
if (hrefVal) {
|
|
char* type = getAttributeValue(el->attributes, "Role");
|
|
char* show = getAttributeValue(el->attributes, "Show");
|
|
if (show &&(strcmp(show, "EMBED") == 0)) {
|
|
if (type && (strcmp(type, "HTML") == 0)) {
|
|
int32 n = 0;
|
|
XMLHTMLInclusion incl = (XMLHTMLInclusion) el->content;
|
|
while (incl && *(incl->content + n)) {
|
|
outputToStream(f, (*(incl->content + n)));
|
|
n++;
|
|
}
|
|
} else if (type && (strcmp(type, "IMAGE") == 0)) {
|
|
sprintf(htmlBuff, "<img src=%s>\n", hrefVal);
|
|
outputToStream(f, htmlBuff);
|
|
}
|
|
freeMem(htmlBuff);
|
|
return;
|
|
} else {
|
|
sprintf(htmlBuff, "<a href=\"%s\">", hrefVal);
|
|
outputToStream(f, htmlBuff);
|
|
}
|
|
} else {
|
|
linkTag = 0;
|
|
}
|
|
}
|
|
|
|
outputStyleSpan(f, el, 0);
|
|
|
|
if (htmlEquiv) {
|
|
sprintf(htmlBuff, "<%s ", htmlEquiv);
|
|
outputToStream(f, htmlBuff);
|
|
outputAttributes(f, el->attributes);
|
|
outputToStream(f, ">\n");
|
|
} else if (!suppressTag){
|
|
sprintf(htmlBuff, "<%s ", &((el->tag)[5]));
|
|
outputToStream(f, htmlBuff);
|
|
outputAttributes(f, el->attributes);
|
|
outputToStream(f, ">\n");
|
|
}
|
|
|
|
while (child) {
|
|
outputAsHTML(f, child);
|
|
child = child->next;
|
|
}
|
|
if (htmlEquiv) {
|
|
sprintf(htmlBuff, "</%s>\n", htmlEquiv);
|
|
outputToStream(f, htmlBuff);
|
|
} else if (!suppressTag) {
|
|
sprintf(htmlBuff, "</%s>\n", &((el->tag)[5]));
|
|
outputToStream(f, htmlBuff);
|
|
}
|
|
outputStyleSpan(f, el, 1);
|
|
if (linkTag) outputToStream(f, "</a>");
|
|
freeMem(htmlBuff);
|
|
}
|
|
}
|
|
|
|
void
|
|
outputAllStyles(XMLFile xf)
|
|
{
|
|
char *ssline;
|
|
StyleSheet ss ;
|
|
StyleElement se;
|
|
outputToStream(xf, "<style>\n");
|
|
for (ss = xf->ss; (ss != NULL) ; ss = ss->next) {
|
|
for (se = ss->el; (se != NULL) ; se = se->next) {
|
|
if (se->style) {
|
|
ssline = PR_smprintf(".xml%d {%s}\n", se->id, se->style);
|
|
PR_ASSERT(ssline);
|
|
if (!ssline)
|
|
return;
|
|
outputToStream(xf, ssline);
|
|
free(ssline);
|
|
}
|
|
}
|
|
}
|
|
outputToStream(xf, "</style>\n");
|
|
}
|
|
|
|
void
|
|
convertToHTML (XMLFile xf) {
|
|
XMLElement el = xf->top;
|
|
xf->numOpenStreams--;
|
|
if (xf->numOpenStreams < 1) {
|
|
outputToStream(xf, "<html><body>");
|
|
outputAllStyles(xf);
|
|
outputAsHTML(xf, el);
|
|
outputToStream(xf, "</body></html>");
|
|
|
|
}
|
|
}
|
|
|
|
void
|
|
outputStyleSpan (XMLFile f, XMLElement el, PRBool endp)
|
|
{
|
|
char *ssid;
|
|
StyleSheet ss ;
|
|
StyleElement se;
|
|
for (ss = f->ss; (ss != NULL) ; ss = ss->next) {
|
|
for (se = ss->el; (se != NULL) ; se = se->next) {
|
|
|
|
if (se->style && stringEquals((se->tagStack)[0], el->tag)) {
|
|
/* check for se->style from Steve Wingard <swingard@spyglass.com> */
|
|
PRBool divp = startsWith("Display:Block;", se->style);
|
|
PRBool listp = startsWith("Display:List-item;", se->style);
|
|
if (!endp) {
|
|
if (divp) {
|
|
outputToStream(f, "<div ");
|
|
} else if (listp) {
|
|
outputToStream(f, "<UL><LI><span ");
|
|
} else {
|
|
outputToStream(f, "<span ");
|
|
}
|
|
ssid=PR_smprintf("class=xml%d>\n", se->id);
|
|
PR_ASSERT(ssid);
|
|
if (!ssid)
|
|
return;
|
|
outputToStream(f, ssid);
|
|
free(ssid);
|
|
} else {
|
|
if (divp) {
|
|
outputToStream(f, "</div>");
|
|
} else if (listp) {
|
|
outputToStream(f, "</UL></span>");
|
|
} else {
|
|
outputToStream(f, "</span>");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|