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[console] Pass escape sequence context to ANSI escape sequence handlers

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Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2013-11-25 14:01:40 +00:00
parent 3102866a7f
commit 02a63c6dec
6 changed files with 36 additions and 14 deletions
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10
src/core/ansiesc.c
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@@ -32,19 +32,20 @@ FILE_LICENCE ( GPL2_OR_LATER );
/**
* Call ANSI escape sequence handler
*
* @v handlers List of escape sequence handlers
* @v ctx ANSI escape sequence context
* @v function Control function identifier
* @v count Parameter count
* @v params Parameter list
*/
static void ansiesc_call_handler ( struct ansiesc_handler *handlers,
static void ansiesc_call_handler ( struct ansiesc_context *ctx,
unsigned int function, int count,
int params[] ) {
struct ansiesc_handler *handlers = ctx->handlers;
struct ansiesc_handler *handler;
for ( handler = handlers ; handler->function ; handler++ ) {
if ( handler->function == function ) {
handler->handle ( count, params );
handler->handle ( ctx, count, params );
break;
}
}
@@ -67,6 +68,7 @@ static void ansiesc_call_handler ( struct ansiesc_handler *handlers,
* sequences we are prepared to accept as valid.
*/
int ansiesc_process ( struct ansiesc_context *ctx, int c ) {
if ( ctx->count == 0 ) {
if ( c == ESC ) {
/* First byte of CSI : begin escape sequence */
@@ -109,7 +111,7 @@ int ansiesc_process ( struct ansiesc_context *ctx, int c ) {
ctx->count = 0;
ctx->function <<= 8;
ctx->function |= c;
ansiesc_call_handler ( ctx->handlers, ctx->function,
ansiesc_call_handler ( ctx, ctx->function,
count, ctx->params );
}
return -1;