Constify data parameter to *_process_data

svn path=/trunk/netsurf/; revision=10234

content/content.c

@@ -247,7 +247,8 @@ const char * const content_status_name[] = {
 /** An entry in handler_map. */
 struct handler_entry {
 	bool (*create)(struct content *c, const http_parameter *params);
-	bool (*process_data)(struct content *c, char *data, unsigned int size);
+	bool (*process_data)(struct content *c, 
+			const char *data, unsigned int size);
 	bool (*convert)(struct content *c);
 	void (*reformat)(struct content *c, int width, int height);
 	void (*destroy)(struct content *c);
@@ -519,7 +520,7 @@ nserror content_llcache_callback(llcache_handle *llcache,
 	case LLCACHE_EVENT_HAD_DATA:
 		if (handler_map[c->type].process_data) {
 			if (handler_map[c->type].process_data(c, 
-					(char *) event->data.data.buf, 
+					(const char *) event->data.data.buf, 
 					event->data.data.len) == false) {
 				c->status = CONTENT_STATUS_ERROR;
 				/** \todo It's not clear what error this is */

css/css.c

@@ -117,7 +117,7 @@ nserror nscss_create_css_data(struct content_css_data *c,
  * \param size  Number of bytes to process
  * \return true on success, false on failure
  */
-bool nscss_process_data(struct content *c, char *data, unsigned int size)
+bool nscss_process_data(struct content *c, const char *data, unsigned int size)
 {
 	union content_msg_data msg_data;
 	css_error error;
@@ -139,7 +139,7 @@ bool nscss_process_data(struct content *c, char *data, unsigned int size)
  * \param size  Number of bytes to process
  * \return CSS_OK on success, appropriate error otherwise
  */
-css_error nscss_process_css_data(struct content_css_data *c, char *data, 
+css_error nscss_process_css_data(struct content_css_data *c, const char *data, 
 		unsigned int size)
 {
 	return css_stylesheet_append_data(c->sheet, 

css/css.h

@@ -51,7 +51,7 @@ struct nscss_import {
 
 bool nscss_create(struct content *c, const struct http_parameter *params);
 
-bool nscss_process_data(struct content *c, char *data, unsigned int size);
+bool nscss_process_data(struct content *c, const char *data, unsigned int size);
 
 bool nscss_convert(struct content *c);
 
@@ -59,7 +59,7 @@ void nscss_destroy(struct content *c);
 
 nserror nscss_create_css_data(struct content_css_data *c,
 		const char *url, const char *charset, bool quirks);
-css_error nscss_process_css_data(struct content_css_data *c, char *data, 
+css_error nscss_process_css_data(struct content_css_data *c, const char *data, 
 		unsigned int size);
 css_error nscss_convert_css_data(struct content_css_data *c);
 void nscss_destroy_css_data(struct content_css_data *c);

image/mng.c

@@ -267,7 +267,7 @@ mng_bool nsmng_processheader(mng_handle mng, mng_uint32 width,
 */
 
 
-bool nsmng_process_data(struct content *c, char *data, unsigned int size)
+bool nsmng_process_data(struct content *c, const char *data, unsigned int size)
 {
 	mng_retcode status;
 

image/mng.h

@@ -42,7 +42,7 @@ struct content_mng_data {
 };
 
 bool nsmng_create(struct content *c, const struct http_parameter *params);
-bool nsmng_process_data(struct content *c, char *data, unsigned int size);
+bool nsmng_process_data(struct content *c, const char *data, unsigned int size);
 bool nsmng_convert(struct content *c);
 void nsmng_destroy(struct content *c);
 bool nsmng_redraw(struct content *c, int x, int y,

image/png.c

@@ -104,7 +104,7 @@ bool nspng_create(struct content *c, const struct http_parameter *params)
 }
 
 
-bool nspng_process_data(struct content *c, char *data, unsigned int size)
+bool nspng_process_data(struct content *c, const char *data, unsigned int size)
 {
 	union content_msg_data msg_data;
 

image/png.h

@@ -43,7 +43,7 @@ struct content_png_data {
 };
 
 bool nspng_create(struct content *c, const struct http_parameter *params);
-bool nspng_process_data(struct content *c, char *data, unsigned int size);
+bool nspng_process_data(struct content *c, const char *data, unsigned int size);
 bool nspng_convert(struct content *c);
 void nspng_destroy(struct content *c);
 bool nspng_redraw(struct content *c, int x, int y,

image/rsvg.c

@@ -69,7 +69,7 @@ bool rsvg_create(struct content *c, const struct http_parameter *params)
 	return true;
 }
 
-bool rsvg_process_data(struct content *c, char *data,
+bool rsvg_process_data(struct content *c, const char *data,
 			unsigned int size)
 {
 	struct content_rsvg_data *d = &c->data.rsvg;

image/rsvg.h

@@ -43,7 +43,7 @@ struct content_rsvg_data {
 };
 
 bool rsvg_create(struct content *c, const struct http_parameter *params);
-bool rsvg_process_data(struct content *c, char *data, unsigned int size);
+bool rsvg_process_data(struct content *c, const char *data, unsigned int size);
 bool rsvg_convert(struct content *c);
 void rsvg_destroy(struct content *c);
 bool rsvg_redraw(struct content *c, int x, int y,

render/html.c

@@ -192,7 +192,7 @@ error:
  * The data is parsed in chunks of size CHUNK, multitasking in between.
  */
 
-bool html_process_data(struct content *c, char *data, unsigned int size)
+bool html_process_data(struct content *c, const char *data, unsigned int size)
 {
 	unsigned long x;
 	binding_error err;
@@ -200,7 +200,7 @@ bool html_process_data(struct content *c, char *data, unsigned int size)
 
 	for (x = 0; x + CHUNK <= size; x += CHUNK) {
 		err = binding_parse_chunk(c->data.html.parser_binding,
-				(uint8_t *) data + x, CHUNK);
+				(const uint8_t *) data + x, CHUNK);
 		if (err == BINDING_ENCODINGCHANGE) {
 			goto encoding_change;
 		} else if (err != BINDING_OK) {
@@ -216,7 +216,7 @@ bool html_process_data(struct content *c, char *data, unsigned int size)
 	}
 
 	err = binding_parse_chunk(c->data.html.parser_binding,
-			(uint8_t *) data + x, (size - x));
+			(const uint8_t *) data + x, (size - x));
 	if (err == BINDING_ENCODINGCHANGE) {
 		goto encoding_change;
 	} else if (err != BINDING_OK) {
@@ -294,7 +294,7 @@ encoding_change:
 		/* Recurse to reprocess all that data.  This is safe because
 		 * the encoding is now specified at parser-start which means
 		 * it cannot be changed again. */
-		return html_process_data(c, (char *) source_data, source_size);
+		return html_process_data(c, source_data, source_size);
 	}
 }
 

render/html.h

@@ -186,7 +186,7 @@ extern bool html_redraw_debug;
 
 
 bool html_create(struct content *c, const struct http_parameter *params);
-bool html_process_data(struct content *c, char *data, unsigned int size);
+bool html_process_data(struct content *c, const char *data, unsigned int size);
 bool html_convert(struct content *c);
 void html_reformat(struct content *c, int width, int height);
 void html_destroy(struct content *c);

render/textplain.c

@@ -133,7 +133,8 @@ no_memory:
  * Process data for CONTENT_TEXTPLAIN.
  */
 
-bool textplain_process_data(struct content *c, char *data, unsigned int size)
+bool textplain_process_data(struct content *c, 
+		const char *data, unsigned int size)
 {
 	iconv_t iconv_cd = c->data.textplain.iconv_cd;
 	size_t count;

render/textplain.h

@@ -49,7 +49,8 @@ struct content_textplain_data {
 };
 
 bool textplain_create(struct content *c, const struct http_parameter *params);
-bool textplain_process_data(struct content *c, char *data, unsigned int size);
+bool textplain_process_data(struct content *c, 
+		const char *data, unsigned int size);
 bool textplain_convert(struct content *c);
 void textplain_reformat(struct content *c, int width, int height);
 void textplain_destroy(struct content *c);